SCNU
Accession number:20081211162343
Title:Kerr-type spatial optical solitons in planar waveguides with finite width and the design of all optical devices
Authors:Xiao, Yi (0); Guo, Qi (0)
Corresponding author:Xiao, Y.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:2
Issue date:February 2008
Publication year:2008
Pages:923-933
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The propagation of paraxial light beams injected at an inclined angle in a planar waveguide with finite width is studied by numerical method. The soliton beams with different wavelength and same width, if their incident point and incident slanting angle are the same, will propagate along the same periodic Z-type route in the planar waveguide. With the power of the beam increasing, the distance between two adjacent reflecting points will become longer and longer with the propagation distance and the Z-type route will lose its periodicity. When the power of a beam become fairly strong, the beam will propagate along z direction of the waveguide, and will no longer be reflected back and forth between the two boundaries of the planar waveguide. Using the characteristic that a beam injected at an inclined angle in the waveguide will propagate along different route with different power, a power switch and an optical time division demultiplexer are designed.
Number of references:30
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011136842
Title:Atmospheric SO2 concentration analyzer based on ultra-violet fluorescence
Authors:Qiu, Jian (0); Yang, Guanling (0); He, Zhenjiang (0); Huang, Linhai (0)
Corresponding author:Qiu, J.
(jianchild@)
Corr. author affiliation:School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Source title:Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument
Abbreviated source title:Yi Qi Yi Biao Xue Bao
Volume:29
Issue:1
Issue date:January 2008
Publication year:2008
Pages:174-178
Language:Chinese
ISSN:02543087
CODEN:YYXUDY
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The SO2 concentration measurement principle based on ultra-violet fluorescence and the design of SO2 analyzer circuit system are discussed. The paper expatiates on not only the hardware structure of the analyzer circuit, but also the structure and flow of the analyzer software. It respectively realizes temperature control of high temperature and cooling control circuits, which are used in reactor, converter and PMT. Acquisition of ultra-violet fluorescence signal is implemented by CPLD. The USB interface is designed using UART to USB bridge. GPIB interface is simulated using parallel interface. Performance test proves that the analyzer can monitor the concentration of SO2 linearly and steadily in the range of 0 to 143 mg/m. Compared with same kind oversea analyzer, in 48-hour continuous operating experiment, this analyzer has the advantages of high sensitivity, real time measurement and good stability.
Number of references:12
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20074010851338
Title:Multiple positive solutions for p-Laplacian functional dynamic equations on time scales
Authors:Song, Changxiu (1); Weng, Peixuan (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China; (2) School of Applied Mathematics, Guangdong University of Technology, Guangzhou, 510006, China
Corresponding author:Song, C.
(scx168@)
Source title:Nonlinear Analysis, Theory, Methods and Applications
Abbreviated source title:Nonlinear Anal Theory Methods Appl
Volume:68
Issue:1
Issue date:January 1, 2008
Publication year:2008
Pages:208-215
Language:English
ISSN:0362546X
CODEN:NOANDD
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:The authors improve some well-known fixed point theorems and study the boundary value problems for a p-Laplacian functional dynamic equation on a time scale, {([φ{symbol}p (x▵ (t))]∇ + a (t) f (x (t), x (μ (t))) = 0, t ∈ (0, T),; x0 (t) = ψ (t), t ∈ [- r, 0], x (0) - B0 (x▵ (0)) = 0, x▵ (T) = 0 .) By using the fixed point theorems, sufficient conditions are established for the existence of multiple positive solutions. © 2006 Elsevier Ltd. All rights reserved.
Number of references:13
Main heading:Laplace equation
Controlled terms:Boundary value problems - Nonlinear equations - Problem solving - Theorem proving
Uncontrolled terms:Fixed point theorem - P-Laplacian functional dynamic equations - Positive solutions - Time scale
Classification code:921.1 Algebra - 921.2 Calculus - 921.6 Numerical Methods
Treatment:Theoretical (THR)
DOI:10.1016/j.na.2006.10.043
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611520828
Title:Tribological behavior of Fe-based alloy coating formed by laser cladding
Authors:Song, Jie (1); Zhang, Qingmao (1); Lin, Xiaocong (2); Liao, Jianhong (1)
Author affiliation:(1) Laboratory of Laser Processing Technology, South China Normal University, Guangzhou 510631, China; (2) Guangzhou Riton Laser Co. Ltd., Guangzhou 510631, China
Corresponding author:Song, J.
(jiesong68@)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:5
Issue date:May 2008
Publication year:2008
Pages:776-781
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:In order to investigate the tribological performance of laser clad coating on die steel, laser cladding techniques were adopted with Fe-based alloy powders. The tests were carried out by using laser clad layers as upper samples and GCr15 steel as low samples with HT-500 wear tester. The morphologies of wear scars were observed with optical microscopy, and the width and the depth of the wear samples were measured. In the meantime, the wear rate was calculated theoretically. Under dry sliding condition, As the tests shown, friction coefficient decreases with the load increasement gradually, and then increases. And the wear performance of 300 g load is better than that of 500 g load under dry sliding condition. Under lubricant condition, with the increasement of load, the friction coefficient decreases gradually. And the friction coefficient, wear rate and wear width under lubricant are smaller than those under dry friction with the same load.
Number of references:17
Main heading:Laser cladding
Controlled terms:Architectural design - Coating techniques - Curing - Lasers - Metal cladding - Optical microscopy - Steel - Tribology
Uncontrolled terms:Friction coefficient - Laser technique - Wear rate
Classification code:744.1 Lasers, General - 744.9 Laser Applications - 802.2 Chemical Reactions - 931.2 Physical Properties of Gases, Liquids and Solids - 813.1 Coating Techniques - 818.3 Rubber and Elastomer Processing - 931 Classical Physics; Quantum Theory; Relativity - 815.1 Polymeric Materials - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 402 Buildings and Towers - 408.1 Structural Design, General - 535.1 Metal Rolling - 538.2 Welding - 539 Metals Corrosion and Protection; Metal Plating - 545.3 Steel
DOI:10.3788/CJL20083505.0776
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611208053
Title:A perturbed (1+2)-dimensional soliton solution in nematic liquid crystals
Authors:Ren, Hongyan (1); Ouyang, Shigen (1); Guo, Qi (1); Hu, Wei (1); Cao, Longgui (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Ren, H.
Source title:Journal of Optics A: Pure and Applied Optics
Abbreviated source title:J Opt A Pure Appl Opt
Volume:10
Issue:2
Issue date:Febrary 1, 2008
Publication year:2008
Article number:025102
Language:English
ISSN:14644258
E-ISSN:17413567
CODEN:JOAOF8
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:With the perturbation method, we present a (1+2)-dimensional ((1+2)D) soliton solution in the second approximation in nematic liquid crystals (NLCs). Numerical simulations confirm the analytical soliton solution in the strongly nonlocal case, and show that the soliton solution in the second approximation is more accurate than that in the zeroth approximation. It is found that, in an NLC, the critical power of a soliton accords with the result of numerical simulation, and the critical power of a strongly nonlocal soliton is in direct proportion to (wm/w)2, where wm is a characteristic length of the material response, and w is the soliton width. © IOP Publishing Ltd.
Number of references:34
Main heading:Solitons
Controlled terms:Computer simulation - Nematic liquid crystals - Nonlinear systems - Perturbation techniques
Uncontrolled terms:Spatial optical soliton - Zeroth approximation
Classification code:723.5 Computer Applications - 804 Chemical Products Generally - 921.1 Algebra - 961 Systems Science
Treatment:Experimental (EXP)
DOI:10.1088/1464-4258/10/2/025102
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084311658144
Title:Broadband directional coupler based on dual core PCF
Authors:Zhu, Ri-Dan (1); Luo, Ai-Ping (1); Wang, Xu-De (1); Xu, Wen-Cheng (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Zhu, R.-D.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:9
Issue date:September 2008
Publication year:2008
Pages:1810-1814
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:The depressed-index dual core PCF-based broadband directional coupler is designed by using semivectorial finite difference method. The influence of the structural parameters on the coupling characteristics in the dual core PCF was studied. The results show that the structural parameter of the cladding of the dual core PCF and the doping degree in the dual core region are optimised, the broadband coupling can be realised: in the wavelength range of 1.22-1.65 μm, the value of the coupling length is stabilized at 26637 nm ± 235 nm and when the couplers are designed as two kinds of couple with coupling ratio of 50% and 10%, the coupling ratios of (50±0.702)% and (10±0.664)% are realized, respectively.
Number of references:13
Main heading:Nonlinear optics
Controlled terms:Directional couplers - Finite difference method - Optical waveguides - Photonic crystals - Telecommunication systems - Waveguide couplers
Uncontrolled terms:Broadband - Coupling length - Coupling ratio - Dual core photonic crystal fiber - Semivectorial finite difference method
Classification code:933.1 Crystalline Solids - 921.6 Numerical Methods - 741.3 Optical Devices and Systems - 741.1.1 Nonlinear Optics - 718 Telephone Systems and Related Technologies; Line Communications - 717.2 Optical Communication Equipment - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 714.3 Waveguides
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711720411
Title:Achieving ultra high frequency RoF communication based on restraining zero rank central band with EO-FM modulation
Authors:Li, Guang (1); Huang, Xu-Guang (1)
Author affiliation:(1) Lab. of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Li, G.
(liguang168999@)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:10
Issue date:October 2008
Publication year:2008
Pages:1966-1969
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:A scheme of effective restraining zero rank central band was proposed and demonstrated, using electronic-optical frequency modulation (EO-FM). And a simplex system RoF communication system was presented based on the above technique in the article. Optical system software-Optisystem5.0 is adopted in the simulation. The simulation results show that the simplex-directional 5 Gbit/s data modulating in UHF microwave with 24 GHz can be successfully transmitted over a 15 km-length SMF with 5 dBm transmitted power, 20 ps/nm/km dispersion, and 0.25 dB/km attenuation.
Number of references:12
Main heading:Optical communication
Controlled terms:Communication - Communication systems - Frequency modulation - Modulation - Optical fibers - Optical materials - Optical systems - Wireless networks
Uncontrolled terms:EO-FM - Optical fiber communication system - Rank zero central band - RoF - UHF wireless communication - Wireless communication network
Classification code:741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 722.4 Digital Computers and Systems - 722.3 Data Communication, Equipment and Techniques - 718 Telephone Systems and Related Technologies; Line Communications - 717.1 Optical Communication Systems - 717 Optical Communication - 716.3 Radio Systems and Equipment - 716 Telecommunication; Radar, Radio and Television
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911588466
Title:The influence of undoped GaN surface flatness on the properties of the blue light-emitting diode wafer
Authors:Li, Shuti (1); Cao, Jianxing (1); Fan, Guanghan (1); Zhang, Yong (1); Zheng, Shuwen (1); Sun, Huiqing (1); Su, Jun (1)
Author affiliation:(1) Institute of Opto-electronic Materials and Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Li, S.
(lishuti@scnu.)
Source title:Semiconductor Science and Technology
Abbreviated source title:Semicond Sci Technol
Volume:23
Issue:9
Issue date:September 1, 2008
Publication year:2008
Article number:095003
Language:English
ISSN:02681242
E-ISSN:13616641
CODEN:SSTEET
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:We have studied the properties of blue-LED wafers grown on GaN with similar dislocation density and different surface flatness. Results indicate that the smooth surface morphology of the undoped GaN layer leads to better layer periodicity in multiple quantum well (MQW) and smooth surface morphology of LED wafers. The surface flatness of the undoped GaN layer has little effect on the forward voltage and output power of the LED. However, the reverse leakage current and the lifetime of the LED wafer grown on the flatter GaN layer improved evidently. On the other hand, wafers grown on the GaN layer with worse surface flatness show better electrostatic discharge (ESD) characteristics. © 2008 IOP Publishing Ltd.
Number of references:21
Main heading:Surface morphology
Controlled terms:CMOS integrated circuits - Electrostatic devices - Electrostatic discharge - Gallium alloys - Gallium nitride - Geophysical prospecting - Leakage currents - Light emitting diodes - Semiconducting gallium - Semiconductor quantum wells - Surface properties
Uncontrolled terms:Blue-light-emitting - Dislocation densities - Forward voltage - Multiple-quantum-well - Output powers - Reverse leakage current - Smooth surfaces - Surface flatness
Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 714.2 Semiconductor Devices and Integrated Circuits - 712.1.2 Compound Semiconducting Materials - 712.1.1 Single Element Semiconducting Materials - 701.1 Electricity: Basic Concepts and Phenomena - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 481.4 Geophysical Prospecting
DOI:10.1088/0268-1242/23/9/095003
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516240
Title:Graphite-carbon nanotube composite electrodes for all vanadium redox flow battery
Authors:Zhu, H.Q. (1); Zhang, Y.M. (1); Yue, L. (1); Li, W.S. (1); Li, G.L. (1); Shu, D. (1); Chen, H.Y. (1)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou, 510006, China; (2) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China
Corresponding author:Li, W.S.
(liwsh@scnu.)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:184
Issue:2
Issue date:October 1, 2008
Publication year:2008
Pages:637-640
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The voltammetric behaviors of graphite (GP) and its composites with carbon nanotube (CNT) were studied in 5 M H2SO4 + 1 M VOSO4 solution with cyclic voltammetry (CV), and the surface morphology of the composites was observed with scanning electron microscope (SEM). The results obtained from voltammetry show that the redox couples of V(IV)/V(V) and V(II)/V(III), as positive and negative electrodes of all vanadium flow liquid battery, respectively, have good reversibility but low current on the GP electrode, and the current can be improved by CNT. It is found from the observation of SEM that the CNT is dispersed evenly on the surface of sheet GP when they are mixed together. The best composition for the positive and the negative of all vanadium flow liquid battery determined by comparing voltammetric behavior of the composite electrodes with different content of CNT is 5:95 (wCNT/wGP) for both positive and negative electrodes. The activity of the composite electrode can be affected by the heat treatment of CNT. CNT treated at 200 °C gives better activity to the composite electrode. © 2008 Elsevier B.V. All rights reserved.
Number of references:12
Main heading:Carbon nanotubes
Controlled terms:Carbon - Carbon carbon composites - Carbon fiber reinforced plastics - Graphite - Graphite electrodes - Nanocomposites - Nanopores - Nanostructured materials - Nanostructures - Nanotechnology - Nanotubes - Transition metals - Vanadium
Uncontrolled terms:All vanadium redox flow battery - Carbon nanotube - Composite electrode - Composite electrodes - Vanadium redox flow battery - Voltammetric behaviors
Classification code:804 Chemical Products Generally - 761 Nanotechnology - 704.1 Electric Components - 817.1 Polymer Products - 543.6 Vanadium and Alloys - 482.2 Minerals - 415.4 Other Structural Materials - 531 Metallurgy and Metallography
DOI:10.1016/j.jpowsour.2008.04.016
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084311653972
Title:Research and design on reputation services (RS) system
Authors:Liu, Shouqiang (1); Qi, Deyu (2); Xiang, Jun (2); Chen, Baogang (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) College of Computer Science and Engineering, South China University of Technology, Guangzhou 510640, China
Corresponding author:Liu, S.
(cssqliu@.cn)
Source title:Proceedings of the International Symposium on Electronic Commerce and Security, ISECS 2008
Abbreviated source title:Proc. Int. Symp. Electron. Commer. Secur., ISECS
Monograph title:Proceedings of the International Symposium on Electronic Commerce and Security, ISECS 2008
Issue date:2008
Publication year:2008
Pages:963-966
Article number:4606212
Language:English
ISBN-13:9780769532585
Document type:Conference article (CA)
Conference name:International Symposium on Electronic Commerce and Security, ISECS 2008
Conference date:August 03,2008 - August 05,2008
Conference location:Guangzhou, China
Conference code:73811
Sponsor:IEEE Computer Society; IEEE Comput. Soc. Tech. Committee on Electronic Commerce (TCEC); IEEE System, Man, and Cybernetics Society; Guangdong University of Business Studies; Peoples' Friendship University of Russia
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Reputation services are acting as a secure informative service which is responsible for maintaining a dynamic and adaptive trust and reputation metric for its community increasingly. Resources, including services providers and consumers, continuously interact with the reputation services to create a community rating mechanism that co-operatively assists their future decisions based on the overall community experiences. In the Reputation services system, resources and services are ranked based on the reputation they obtain. This paper studies some necessary aspects of reputation and reputation services, such as their definition, framework and applications, after offeing some cases, RS system and its network are designed. © 2008 IEEE.
Number of references:6
Main heading:Commerce
Controlled terms:Electronic commerce - Network protocols - Rapid solidification - Sensor networks
Uncontrolled terms:Adaptive - Trust and reputations
Classification code:911.4 Marketing - 911.2 Industrial Economics - 802.3 Chemical Operations - 732 Control Devices - 933 Solid State Physics - 731.1 Control Systems - 723 Computer Software, Data Handling and Applications - 537.1 Heat Treatment Processes - 531 Metallurgy and Metallography - 723.5 Computer Applications
DOI:10.1109/ISECS.2008.225
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711535647
Title:The web service matching based on Galois grid and vector space
Authors:Chen, Hongying (1)
Author affiliation:(1) Institute of Computer Science, South China University, Guangzhou 510631, China
Corresponding author:Chen, H.
(Chenhy01@)
Source title:Proceedings of the 2008 12th International Conference on Computer Supported Cooperative Work in Design, CSCWD
Abbreviated source title:Proc. Int. Conf. Comput. Supported Coop. Work Des., CSCWD
Volume:1
Monograph title:Proceedings of the 2008 12th International Conference on Computer Supported Cooperative Work in Design, CSCWD
Issue date:2008
Publication year:2008
Pages:441-444
Article number:4537019
Language:English
ISBN-13:9781424416509
Document type:Conference article (CA)
Conference name:2008 12th International Conference on Computer Supported Cooperative Work in Design, CSCWD
Conference date:April 16,2008 - April 18,2008
Conference location:Xi'an, China
Conference code:73351
Sponsor:Xi'an Jiaotong University; IEEE China Council; International Working Group on CSCW in Design; Xidian University; IEEE PRESS
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Ontology matching is an important method of web service matching. Because ontology has meaning, service matching based on ontology can return more result. This paper firstly analyses several methods of ontology matching, then uses Galois and vector space to implement ontology's matching. Experiment shows it has great advantage than the matching method based on keyword. © 2008 IEEE.
Number of references:10
Main heading:Ontology
Controlled terms:Computer networks - Groupware - Information services - Interactive computer systems - Web services - World Wide Web
Uncontrolled terms:Computer-supported cooperative work - Galois grid - Ontology matching - Vector space
Classification code:903 Information Science - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 903.4 Information Services - 722 Computer Systems and Equipment - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 718 Telephone Systems and Related Technologies; Line Communications
DOI:10.1109/CSCWD.2008.4537019
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090411872352
Title:Catalytic ozonation of p-chlorobenzoic acid by activated carbon and nickel supported activated carbon prepared from petroleum coke
Authors:Li, Xukai (1); Zhang, Qiuyun (1); Tang, Lili (1); Lu, Ping (1); Sun, Fengqiang (1); Li, Laisheng (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Corresponding author:Li, L.
(llsh@scnu.)
Source title:Journal of Hazardous Materials
Abbreviated source title:J. Hazard. Mater.
Volume:163
Issue:1
Issue date:April 15, 2009
Publication year:2009
Pages:115-120
Language:English
ISSN:03043894
CODEN:JHMAD9
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The aim of this research was to investigate catalytic activity of petroleum coke, activated carbon (AC) prepared from this material, Ni supported catalyst on activated carbon (Ni/AC) in the ozonation of aqueous phase p-chlorobenzoic acid (p-CBA). Activated carbon and Ni/AC catalyst were characterized by XRD and SEM. The presence of petroleum coke did not improve the degradation of p-CBA compared to ozonation alone, but it was advantageous for p-CBA mineralization (total organic carbon, TOC, reduction), indicating the generation of highly oxidant species ({radical dot}OH) in the medium. The presence of either activated carbon or Ni/AC considerably improves TOC removal during p-CBA ozonation. Ni/AC catalyst shows the better catalytic activity and stability based on five repeated tests during p-CBA ozonation. During the ozonation (50 mg/h ozone flow rate) of a 10 mg/L p-CBA (pH 4.31), it can be more mineralized in the presence of Ni/AC catalyst (5.0 g/L), TOC removal rate is over 60% in 60 min, 43% using activated carbon as catalyst, only 30% with ozonation alone. © 2008 Elsevier B.V. All rights reserved.
Number of references:20
Main heading:Activated carbon
Controlled terms:Catalysis - Catalyst activity - Catalyst supports - Charcoal - Coke - Electrochemical sensors - Fire hazards - Mineralogy - Nickel - Organic carbon - Ozone - Ozonization - Petroleum coke - Petroleum refineries - Petroleum research
Uncontrolled terms:Aqueous phase - Catalytic activities - Catalytic ozonation - Ni supported catalyst - Ozonation - Ozone flows - p-Chlorobenzoic acid - TOC removals - Total organic carbons
Classification code:801 Chemistry - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 811.2 Wood and Wood Products - 901.3 Engineering Research - 914.2 Fires and Fire Protection - 732.2 Control Instrumentation - 402.1 Industrial and Agricultural Buildings - 482 Mineralogy - 511 Oil Field Equipment and Production Operations - 512 Petroleum and Related Deposits - 513 Petroleum Refining - 513.2 Petroleum Refineries - 513.3 Petroleum Products - 524 Solid Fuels - 548.1 Nickel
DOI:10.1016/j.jhazmat.2008.06.068
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20091011946590
Title:Removal of cadmium ions from low concentration wastewater containing cadmium by modified starch
Authors:Zhang, Yanlin (1); Zhang, Qiuyun (1); Wang, Ting (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Zhang, Y.
(zhangyl@scnu.)
Source title:Huagong Xuebao/CIESC Journal
Abbreviated source title:Huagong Xuebao
Volume:60
Issue:2
Issue date:February 2009
Publication year:2009
Pages:460-464
Language:Chinese
ISSN:04381157
Document type:Journal article (JA)
Publisher:Chemical Industry Press, No. 3 Huixinli, Chaoyangqu, Beijing, 100029, China
Abstract:Graft copolymerization of acrylamide onto starch and reaction with mercaptoacetic acid subsequently were studied. The reaction product (St-AM-MCAA) was used in the treatment of wastewater containing low concentration cadmium ion (0.40 mg·L-1) as additive. An investigation was carried out to study the effect of St/AM (mass ratio of starch to acrylamide) on the grafting ratio and grafting efficiency and the content of thiol (SH) group. It was found that the cadmium ion removal percentage by St-AM-MCAA3 reached 89.7% and the residual concentration of cadmium ion in treated water was under 0.10 mg·L-1 in the conditions of pH=8 and additive concentration of 2.0 g·L-1 by selecting a high grafting ratio and thiol content product St-AM-MCAA3 as additive. The ability of St-AM-MCAA3 to remove low concentration wastewater containing cadmium ion was higher than that of St-AM3 by 10%.
Number of references:16
Main heading:Chemicals removal (water treatment)
Controlled terms:Acids - Acrylic monomers - Amides - Amplitude modulation - Biochemical oxygen demand - Cadmium - Cadmium compounds - Concentration (process) - Grafting (chemical) - Ions - Starch - Wastewater - Wastewater treatment
Uncontrolled terms:Acrylamide - Additive concentrations - Cadmium ions - Graft copolymerizations - Grafting efficiencies - Grafting ratios - Ion removals - Low concentrations - Mass ratios - Mercaptoacetic acid - Modified starches - Reaction products - Residual concentrations
Classification code:802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 815.1 Polymeric Materials - 815.1.1 Organic Polymers - 822.3 Food Products - 931.3 Atomic and Molecular Physics - 802.2 Chemical Reactions - 452.2 Sewage Treatment - 452.3 Industrial Wastes - 452.4 Industrial Wastes Treatment and Disposal - 453 Water Pollution - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 701.1 Electricity: Basic Concepts and Phenomena - 716 Telecommunication; Radar, Radio and Television - 717.1 Optical Communication Systems - 801 Chemistry
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090111829566
Title:Study on anodic oxidation of magnesium in 6 M KOH solution by alternative current impedance
Authors:Cai, Zongping (1); Lu, Dongsheng (1); Li, Weishan (1); Liang, Ying (1); Zhou, Hebing (1)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou, 510006, China; (2) Key Lab of Electrochemical Technology on Energy Storage, Power Generation in Guangdong Universities, South China Normal University, Guangzhou, 510631, China; (3) College of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
Corresponding author:Li, W.
(liwsh@scnu.)
Source title:International Journal of Hydrogen Energy
Abbreviated source title:Int J Hydrogen Energy
Volume:34
Issue:1
Issue date:January 2009
Publication year:2009
Pages:467-472
Language:English
ISSN:03603199
CODEN:IJHEDX
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:The result obtained from linear potential sweep indicates that magnesium in 6 M KOH solution behaves like an active-passive metal. The anodic oxidation process of magnesium and the interface structure between magnesium and solution were investigated by alternative current impedance analysis. It is found that when anodized, magnesium experiences active dissolution, passivation and secondary oxidation. In active region, magnesium dissolves actively, which is controlled by charge transfer step. In passive region, magnesium is passivated by the deposited Mg(OH)2 but its oxidation controlled by charge transfer step still happens. In the secondary oxidation region, magnesium is oxidized directly to MgO, which is mix-controlled by charge transfer step and diffusion of water. © 2008 International Association for Hydrogen Energy.
Number of references:26
Main heading:Anodic oxidation
Controlled terms:Charge transfer - Dissolution - Ion exchange - Light metals - Magnesium - Magnesium printing plates - Mass transfer - Metal recovery - MOS capacitors - Oxidation - Passivation
Uncontrolled terms:Active dissolutions - Active regions - Alkaline solution - Alternative current impedance - Diffusion of waters - Impedance analyses - Interface structures - Koh solutions - Linear potential sweeps - Oxidation processes - Passive metals - Passive regions - Secondary oxidations
Classification code:704.1 Electric Components - 714.2 Semiconductor Devices and Integrated Circuits - 745.1.1 Printing Equipment - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 802.3 Chemical Operations - 813.1 Coating Techniques - 641.3 Mass Transfer - 531 Metallurgy and Metallography - 539.2.1 Protection Methods - 541.1 Aluminum - 542.1 Beryllium and Alloys - 542.2 Magnesium and Alloys - 542.3 Titanium and Alloys - 549.2 Alkaline Earth Metals
DOI:10.1016/j.ijhydene.2008.09.087
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084911763998
Title:Laser micro-processing of cardiovascular stent with fiber laser cutting system
Authors:Meng, Hongyun (1); Liao, Jianhong (1); Zhou, Yongheng (1); Zhang, Qingmao (1)
Author affiliation:(1) Laboratory of Laser Processing Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Meng, H.
(hymeng@scnu.)
Source title:Optics and Laser Technology
Abbreviated source title:Opt Laser Technol
Volume:41
Issue:3
Issue date:April 2009
Publication year:2009
Pages:300-302
Language:English
ISSN:00303992
CODEN:OLTCAS
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:A metallic cardiovascular stent cutting system based on fiber laser was designed in this study. In order to achieve the cutting of stent, the main modules and the key technologies were analyzed and achieved. Then with the cutting system, the kerf width size was studied for different cutting parameters including laser output power, pulse length, repeat frequency, cutting speed and assisting gas pressure. Finally, a high quality of cutting of 316L stainless steel cardiovascular stent was achieved. © 2008 Elsevier Ltd. All rights reserved.
Number of references:8
Main heading:Cutting
Controlled terms:Fiber lasers - Laser applications - Laser beam cutting - Laser beams - Lasers - Pulsed laser applications - Stainless steel
Uncontrolled terms:316l stainless steels - Cardiovascular stent - Cutting parameters - Cutting speeds - Cutting systems - Gas pressures - High qualities - Kerf widths - Key technologies - Laser cutting - Laser cutting systems - Laser output powers - Main modules - Pulse lengths - Stent cuttings
Classification code:744.8 Laser Beam Interactions - 744.4 Solid State Lasers - 744.1 Lasers, General - 744.9 Laser Applications - 741.1.2 Fiber Optics - 604.1 Metal Cutting - 545.3 Steel - 606.2 Abrasive Devices and Processes
DOI:10.1016/j.optlastec.2008.06.001
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090211846400
Title:The Drazin inverses of sum and difference of idempotents
Authors:Deng, Chun Yuan (1)
Author affiliation:(1) School of Mathematics Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Deng, C.Y.
(cydeng@scnu.)
Source title:Linear Algebra and Its Applications
Abbreviated source title:Linear Algebra Its Appl
Volume:430
Issue:4
Issue date:February 1, 2009
Publication year:2009
Pages:1282-1291
Language:English
ISSN:00243795
CODEN:LAAPAW
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:In this note, the Drazin inverses of sum and difference of idempotents on a Hilbert space are established under some conditions. © 2008 Elsevier Inc. All rights reserved.
Number of references:20
Main heading:Theorem proving
Uncontrolled terms:Drazin inverse - Idempotent - Idempotents
Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.4 Artificial Intelligence - 921 Mathematics
DOI:10.1016/j.laa.2008.10.017
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085111794319
Title:Capillary liquid chromatographic analysis of fat-soluble vitamins and β-carotene in combination with in-tube solid-phase microextraction
Authors:Xu, Hui (1); Jia, Li (1)
Author affiliation:(1) Ministry of Education Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Jia, L.
(jiali@scnu.)
Source title:Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
Abbreviated source title:J. Chromatogr. B Anal. Technol. Biomed. Life Sci.
Volume:877
Issue:1
Issue date:January 1, 2009
Publication year:2009
Pages:13-16
Language:English
ISSN:15700232
CODEN:JCBAAI
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:A capillary liquid chromatography (CLC) system with UV/vis detection was coupled with an in-tube solid-phase microextraction (SPME) device for the analysis of fat-soluble vitamins and β-carotene. A monolithic silica-ODS column was used as the extraction medium. An optical-fiber flow cell with a long light path in the UV/vis detector was utilized to further enhance the detection sensitivity. In the in-tube SPME/CLC system, the pre-condition of the extraction column and the effect of the injection volume were investigated. The detection limits (LOD) for the fat-soluble vitamins and β-carotene were in the range from 1.9 to 173 ng/mL based on the signal-to-noise ratio of 3 (S/N = 3). The relative standard deviations of migration time and peak area for each analyte were less than 5.0%. The method was applied to the analysis of fat-soluble vitamins and β-carotene contents in corns. © 2008 Elsevier B.V. All rights reserved.
Number of references:20
Main heading:Extraction
Controlled terms:Body fluids - Chromatographic analysis - Chromatography - High performance liquid chromatography - High pressure liquid chromatography - Liquid chromatography - Nutrition - Signal to noise ratio - Silica - Solvent extraction - Tubes (components) - Vitamins
Uncontrolled terms:Analyte - Capillary liquid chromatographies - Capillary liquid chromatography - Detection limits - Detection sensitivities - Extraction columns - Extraction mediums - Fat-soluble vitamins - Fiber flows - In-tube solid-phase microextraction - Injection volumes - Migration times - Monolithic silicas - Optical- - Peak areas - Relative standard deviations - Signal-to-Noise ratios - Solidphase micro extractions - UV/Vis detections
Classification code:822.3 Food Products - 801 Chemistry - 801.2 Biochemistry - 802.3 Chemical Operations - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812 Ceramics, Refractories and Glass - 716.1 Information Theory and Signal Processing - 616.1 Heat Exchange Equipment and Components - 511.2 Oil Field Equipment - 482.2 Minerals - 461.7 Health Care - 461.2 Biological Materials and Tissue Engineering - 619.1 Pipe, Piping and Pipelines
DOI:10.1016/j.jchromb.2008.11.011
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090711905304
Title:Morphology, ecology, and contaminant removal efficiency of eight wetland plants with differing root systems
Authors:Cheng, Xiu-Yun (1); Chen, Wen-Yin (1); Gu, Bin-He (1); Liu, Xu-Cheng (1); Chen, Fang (1); Chen, Zhang-He (1); Zhou, Xian-Ye (1); Li, Yu-Xiang (1); Huang, Hua (5); Chen, Yun-Jin (5)
Author affiliation:(1) Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, College of Life Science, South China Normal University, Guangzhou 510631, China; (2) Guangdong Provincial Key Lab of Biotechnology for Plant Development, College of Life Science, South China Normal University, Guangzhou 510631, China; (3) College of Arts and Sciences, University of South Florida, 140 Seventh Ave South, St. Petersburg, FL 33701, United States; (4) Fishery College, Guangdong Ocean University, 40 East Jiefang Raod, Xiashan, Zhanjiang, Guandong, China; (5) Liede Wasterwater Treatment Plant, Guangzhou 510655, China
Corresponding author:Chen, Z.-H.
(chenzhh@scnu.)
Source title:Hydrobiologia
Abbreviated source title:Hydrobiologia
Volume:623
Issue:1
Issue date:May 2009
Publication year:2009
Pages:77-85
Language:English
ISSN:00188158
E-ISSN:15735117
CODEN:HYDRB8
Document type:Journal article (JA)
Publisher:Kluwer Academic Publishers, Van Godewijckstraat 30, Dordrecht, 3311 GZ, Netherlands
Abstract:The objective of this study was to test the hypothesis that fibrous-root plants and rhizomatic-root plants are characterized by different root morphologies, root growth and distribution, and contaminant removal capabilities. Four fibrous-root and four rhizomatic-root wetland plants were studied in mono-cultured microcosms which received wastewater. Fibrous-root plants had significantly greater (P < 0.05) small-size root (diameter 1 mm) biomass and a larger (P < 0.05) root surface area per plant than the rhizomatic-root plants and exhibited accelerated growth in both shoots and roots compared to the rhizomatic-root plants. Fibrous-root plants developed the majority of their root biomass increment within a shallower gravel medium than the rhizomatic-root plants. All plants demonstrated fast root biomass growth from July to September. The wetland microcosms planted with fibrous-root plants showed significantly higher (P < 0.05) ammonium-nitrogen (NH4-N) and nitrate-nitrogen (NO3-N) removal rates from July to December than those planted with the rhizomatic-root plants. These results suggest that root characteristics of wetland plants, which are related to their shoot and root growth, root distribution, and decontamination ability, can be used in the selection of wetland plants with a higher contaminant removal capacity and in the construction of a multi-species wetland plant community. © 2008 Springer Science+Business Media B.V.
Number of references:33
Main heading:Wetlands
Controlled terms:Ammonium compounds - Biological materials - Biomass - Contamination - Ecology - Forestry - Growth (materials) - Removal - Renewable energy resources - Spectroscopic analysis - Wastewater
Uncontrolled terms:Constructed wetland - Contaminant removal - Fibrous-root plants - Rhizomatic-root plants - Root biomass and distribution
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 801 Chemistry - 802.3 Chemical Operations - 804.1 Organic Compounds - 951 Materials Science - 804.2 Inorganic Compounds - 821.0 Woodlands and Forestry - 821.5 Agricultural Wastes - 933.1.2 Crystal Growth - 805.1.1 Biochemical Engineering - 712.1 Semiconducting Materials - 525.1 Energy Resources and Renewable Energy Issues - 442.2 Land Reclamation - 452.3 Industrial Wastes - 454.2 Environmental Impact and Protection - 454.3 Ecology and Ecosystems - 461.2 Biological Materials and Tissue Engineering - 461.7 Health Care - 481.1 Geology - 483.1 Soils and Soil Mechanics
DOI:10.1007/s10750-008-9649-9
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911923917
Title:Lp error estimates of two-grid schemes of expanded mixed finite element methods
Authors:Chen, Yanping (1); Li, Li (2)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China; (2) Information Department, Hunan Business College, Changsha, 410205, China
Corresponding author:Chen, Y.
(yanpingchen@scnu.)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:209
Issue:2
Issue date:March 15, 2009
Publication year:2009
Pages:197-205
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:We present a scheme for solving two-dimensional semi-linear reaction-diffusion equations using an expanded mixed finite element method. To linearize the mixed-method equations, we use a two-grid scheme based on the Newton iteration method. We give the Lp error estimate to the variable p in the two-grid solution. It is shown that the algorithm achieve asymptotically optimal approximation applying the two-grid methods as long as the mesh sizes satisfy H = O (h1 / 3) for semi-linear problems. © 2008 Elsevier Inc. All rights reserved.
Number of references:16
Main heading:Finite element method
Controlled terms:Approximation algorithms - Diffusion - Diffusion in liquids - Iterative methods - Particle size analysis
Uncontrolled terms:Error estimates - Mixed finite element methods - Newton iteration method - Reaction-diffusion equations - Two-grid schemes
Classification code:921 Mathematics - 921.6 Numerical Methods - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 943.3 Special Purpose Instruments - 951 Materials Science
DOI:10.1016/j.amc.2008.12.033
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090811913580
Title:Complex-variable-function Gaussian beam in strongly nonlocal nonlinear media
Authors:Deng, Dongmei (1); Guo, Qi (1); Hu, Wei (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:79
Issue:2
Issue date:February 2, 2009
Publication year:2009
Article number:023803
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We introduce a class of spatial complex-variable-function Gaussian (CVF Gaussian) beams, which are the product of an arbitrary analytic complex variable function and a Gaussian function, in strongly nonlocal nonlinear media (SNNM). The CVF Gaussian beam rotates generally during propagation. By choosing the input power of the beam, we can obtain a CVF Gaussian breather or a CVF Gaussian soliton. We reveal that a stable CVF Gaussian beam can exist in SNNM with different forms, including rotating dipoles, rotating elliptic doughnuts, and rotating figure eights. © 2009 The American Physical Society.
Number of references:36
Main heading:Gaussian beams
Controlled terms:Functions - Gaussian distribution - Gaussian noise (electronic) - Probability density function - Rotation - Trellis codes
Uncontrolled terms:Complex variable functions - Gaussian - Gaussian functions - Input power - Nonlocal nonlinear medias
Classification code:922.2 Mathematical Statistics - 922.1 Probability Theory - 921 Mathematics - 723.2 Data Processing and Image Processing - 931.1 Mechanics - 716 Telecommunication; Radar, Radio and Television - 711 Electromagnetic Waves - 701.1 Electricity: Basic Concepts and Phenomena - 601.1 Mechanical Devices - 713 Electronic Circuits
DOI:10.1103/PhysRevA.79.023803
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085211817705
Title:Synthesis and characterization of zinc(II) and cobalt(III) Schiff base complexes
Authors:Hong, Sheng-Feng (1); Liang, Xiao-Huan (1); Fang, Hua-Cai (1); Zhan, Xu-Lin (1); Zhou, Zheng-Yuan (1); Chen, Li (1); Cai, Yue-Peng (1)
Author affiliation:(1) Key Lab of Technol. on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Cai, Y.-P.
(ypcai8@)
Source title:Transition Metal Chemistry
Abbreviated source title:Transition Met Chem
Volume:34
Issue:1
Issue date:February 2009
Publication year:2009
Pages:115-120
Language:English
ISSN:03404285
CODEN:TMCHDN
Document type:Journal article (JA)
Publisher:Kluwer Academic Publishers, Van Godewijckstraat 30, Dordrecht, 3311 GZ, Netherlands
Abstract:Two mononuclear complexes with the Schiff base ligand 2-((2-(dimethylamino) ethylimino)methyl)phenol (HL), namely ZnL2 and CoL2(N 3), have been synthesized and characterized using single-crystal X-ray diffraction and spectroscopy (IR, 1H NMR, UV-Vis, MS and EA). Both complexes are mononuclear. The coordination geometry in the Zn(II) complex is distorted square-pyramidal with a weak Zn&bull&bull&bullN interaction. The Co(III) complex is distorted octahedral, and the neutral molecule unit [Co IIIL2(N3)] is connected by C- H&bull&bull&bullN hydrogen bonds to form a one-dimensional infinite chain. The luminescence of the zinc compound has been investigated. © 2008 Springer Science+Business Media B.V.
Number of references:33
Main heading:Cobalt compounds
Controlled terms:Chelation - Cobalt - Complexation - Coordination reactions - Hydrogen - Hydrogen bonds - Light - Nuclear magnetic resonance - Phenols - Synthesis (chemical) - Transition metal compounds - Transition metals - Zinc - Zinc compounds
Uncontrolled terms:Coordination geometries - Infinite chains - Mononuclear complexes - Neutral molecules - Schiff base - Synthesis and characterizations - X-ray diffractions - Zn complexes
Classification code:932.2 Nuclear Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 804 Chemical Products Generally - 802.2 Chemical Reactions - 801.4 Physical Chemistry - 741.1 Light/Optics - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 546.3 Zinc and Alloys - 531 Metallurgy and Metallography
DOI:10.1007/s11243-008-9166-8
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084911764133
Title:New lower bounds for seven classical Ramsey numbers R (3, q)
Authors:Wu, Kang (1); Su, Wenlong (2); Luo, Haipeng (3); Xu, Xiaodong (3)
Author affiliation:(1) South China Normal University, Guangzhou, Guangdong 510631, China; (2) Wuzhou University, 543002, China; (3) Guangxi Academy of Sciences, Nanning, 530022, China
Corresponding author:Luo, H.
(haipengluo@)
Source title:Applied Mathematics Letters
Abbreviated source title:Appl Math Lett
Volume:22
Issue:3
Issue date:March 2009
Publication year:2009
Pages:365-368
Language:English
ISSN:08939659
CODEN:AMLEEL
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:New lower bounds for seven classical Ramsey numbers are obtained by considering some circulant graphs Gn (Ai) with n ≥ 142 whose orders might be either prime or not. The results are. R (3, 24) ≥ 143, R (3, 25) ≥ 153, R (3, 26) ≥ 159, R (3, 27) ≥ 167,R (3, 28) ≥ 172, R (3, 29) ≥ 182, R (3, 30) ≥ 187. © 2008 Elsevier Ltd. All rights reserved.
Number of references:13
Main heading:Control theory
Controlled terms:Graph theory - Machine tools
Uncontrolled terms:Circulant graph - Clique number - Constructive method - Lower bound - Ramsey number
Classification code:603.1 Machine Tools, General - 731.1 Control Systems - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1016/j.aml.2008.04.010
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090211855033
Title:A note on the existence of a global attractor for the Brinkman-Forchheimer equations
Authors:Ouyang, Yan (1); Yang, Ling-e (2)
Author affiliation:(1) Department of Mathematics and Science, South China Normal University, Guangzhou, Guangdong 510631, China; (2) Department of Mathematics, Foshan University, Foshan, Guangdong 528000, China
Corresponding author:Ouyang, Y.
(ouyang015012@.cn)
Source title:Nonlinear Analysis, Theory, Methods and Applications
Abbreviated source title:Nonlinear Anal Theory Methods Appl
Volume:70
Issue:5
Issue date:March 1, 2009
Publication year:2009
Pages:2054-2059
Language:English
ISSN:0362546X
CODEN:NOANDD
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:This study focuses on the Brinkman-Forchheimer equation ut = γ ▵ u - a u - b | u | u - c | u |β u - ∇ p + f in an open, bounded domain Ω and the existence of a global attractor in the phase space over(H, ˜)01 (Ω) is established. © 2008 Elsevier Ltd. All rights reserved.
Number of references:4
Main heading:Phase space methods
Uncontrolled terms:Absorbing set - Bounded domains - C0 semigroup - Forchheimer equations - Global attractor - Phase spaces
Classification code:921 Mathematics
DOI:10.1016/j.na.2008.02.121
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084311660260
Title:On the numbers of positive entries of reducible nonnegative matrices
Authors:Cheng, Bo (0); Liu, Bolian (0)
Corresponding author:Liu, B.
(liubl@scnu.)
Corr. author affiliation:Department of Mathematics, South China Normal University, Guangzhou, China
Source title:Linear Algebra and Its Applications
Abbreviated source title:Linear Algebra Its Appl
Volume:430
Issue:1
Issue date:Jan 1 2009
Publication year:2009
Pages:308-317
Language:English
ISSN:00243795
CODEN:LAAPAW
Document type:Journal article (JA)
Publisher:Elsevier Inc., New York, NY 10010, United States
Abstract:Let RM (n, d) be the class {A {divides} A is an n × n reducible nonnegative matrix and the greatest common divisor of the lengths of all cycles in D (A) is d}, where D (A) is the associated digraph of A. In this paper we determine the set of numbers of positive entries of A for A is a member of the set of RM (n, d). We also characterize the reducible nonnegative matrices with the maximum and minimum numbers of positive entries. © 2008 Elsevier Inc. All rights reserved.
Number of references:4
DOI:10.1016/j.laa.2008.07.027
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090811914578
Title:Nucleoplasmic viscosity of living cells investigated by fluorescence correlation spectroscopy
Authors:Liang, Li-Fang (1); Xing, Da (1); Chen, Tong-Sheng (1); Pei, Yi-Hui (1)
Author affiliation:(1) Key Laboratory of Laser Life Science of Ministry of Education, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Liang, L.-F.
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:29
Issue:2
Issue date:February 2009
Publication year:2009
Pages:459-462
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:In order to non-invasively investigate nucleoplasmic viscosity in real time with good temporal resolution, the present study firstly introduced a new method based on fluorescence correlation spectroscopy (FCS). FCS is a kind of single-molecule technique with high temporal and spatial resolution to analyze the dynamics of fluorescent molecules in nanomolar concentration. Through a time correlation analysis of spontaneous intensity fluctuations, this technique in conjunction with EGFP as a probe is capable of determining nucleoplasmic viscosity in terms of Stokes-Einstein equation as well as its corresponding analysis of the diffusion coefficient for EGFP in the nucleus. The results showed that nucleoplasmic viscosity of ASTC-a-1 cells and HeLa cells were respectively (2.55±0.61) cP and (2.04±0.49) cP at pH 7.4 and 37 °C, consistent with the results by traditional methods, and nucleoplasmic viscosity was found to be larger than cytoplasmic viscosity. Meanwhile, the real-time analysis of nucleoplasmic viscosity in living cells exposed to hypotonic media proved that FCS could be used to track the changing rheological characteristics of the nucleoplasm in living cells. Taken together, this study suggests that FCS provides an accurate and non-invasive method to investigate the microenvironment in living cells on the femtoliter scale and it can be used as a powerful tool in researches on the dynamical processes of intracellular molecules.
Number of references:20
Main heading:Viscosity
Controlled terms:Correlation methods - Cytology - Enzyme activity - Fluorescence - Fluorescence spectroscopy - Hydrodynamics - Molecular spectroscopy - Molecules - Spectrum analysis - Viscometers
Uncontrolled terms:Cytoplasm - Diffusion Coefficients - Dynamical process - Fluorescence correlation spectroscopy (FCS) - Fluorescent molecules - Hela cells - Intensity fluctuations - Living cells - Microenvironment - Nanomolar concentrations - Non-invasive methods - Nucleoplasm - Real time - Real-time analysis - Rheological characteristics - Single-molecule techniques - Spatial resolutions - Stokes-Einstein equations - Temporal resolutions - Time correlations
Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 941 Acoustical and Optical Measuring Instruments - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 943.3 Special Purpose Instruments - 922.2 Mathematical Statistics - 461.2 Biological Materials and Tissue Engineering - 461.9 Biology - 631.1 Fluid Flow, General - 921 Mathematics - 631.1.1 Liquid Dynamics - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 631.2 Hydrodynamics
DOI:10.3964/j.issn.1000-0593(2009)02-0459-04
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090411868272
Title:Complex-variable-function-Gaussian solitons
Authors:Deng, Dongmei (1); Guo, Qi (1); Hu, Wei (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:34
Issue:1
Issue date:January 1, 2009
Publication year:2009
Pages:43-45
Language:English
ISSN:01469592
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:We have introduced a novel (to our knowledge) class of complex-variable- function (CVF) - Gaussian solitons that constitute the exact soliton solutions of the Snyder-Mitchell model. The CVF-Gaussian solitons whose transverse structure has an inherent rotation are the product of an arbitrary analytic CVF and a Gaussian function. A distribution factor that is the parameter for the description of the transverse distribution of the CVF-Gaussian solitons is discussed. © 2008 Optical Society of America.
Number of references:31
Main heading:Solitons
Controlled terms:Functions - Probability density function - Trellis codes
Uncontrolled terms:Distribution factors - Gaussian - Gaussian functions - Soliton solutions - Transverse distributions
Classification code:723.2 Data Processing and Image Processing - 921 Mathematics - 921.1 Algebra - 922.1 Probability Theory - 931.3 Atomic and Molecular Physics
DOI:10.1364/OL.34.000043
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911923020
Title:Computer-aided experiment of using real-time small angle light scattering image processing technique for visual characterization flow field of polymer melts
Authors:Xian, Guang-Ming (1); Qu, Jin-Ping (2); Zeng, Bi-Qing (1)
Author affiliation:(1) Computer Engineering Department, South China Normal University, 528225 Foshan, Guangdong, China; (2) Key Laboratory of Polymer Processing Engineering, South China University of Technology, Ministry of Education, 510641 Guangzhou, China
Corresponding author:Xian, G.-M.
(xgm20011@)
Source title:Polymer Bulletin
Abbreviated source title:Polym. Bull.
Volume:62
Issue:3
Issue date:March 2009
Publication year:2009
Pages:345-354
Language:English
ISSN:01700839
CODEN:POBUDR
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:The phenomenon of small angle light scattering (SALS) has been applied to the actual extrusion molding process. The current study utilizes a self-designed mold with built-in windows for observation of polymer melts within a slit die. A high-speed charge-coupled-device (CCD) camera is used to record the SALS images in real-time with different process conditions for subsequent analysis. Modification algorithm has been proposed to eliminate the effect of multiple scattering. Flow behavior of polymer melts is simulated and analyzed by real-time SALS image processing technique. Visualization is performed via a high-performance computer-aided analysis software which allows on-line data acquisition and characterization the flow field of polymer melts. © 2008 Springer-Verlag.
Number of references:23
Main heading:Polymer melts
Controlled terms:Charge coupled devices - Computer aided analysis - Data flow analysis - Data visualization - Digital cameras - Digital image storage - Extrusion molding - Flow fields - Flow of fluids - Image processing - Imaging systems - Light scattering - Polymers - Refraction - Scattering - Visualization
Uncontrolled terms:CCD - Different process - Flow behaviors - High-performance computers - High-speed - Image processing techniques - Molding process - On-line data acquisitions - Small angle light scattering
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 746 Imaging Techniques - 815.1 Polymeric Materials - 816 Plastics and Other Polymers: Processing and Machinery - 902.1 Engineering Graphics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 931.1 Mechanics - 741 Light, Optics and Optical Devices - 535.2.2 Metal Forming Practice - 631.1 Fluid Flow, General - 711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 722.1 Data Storage, Equipment and Techniques - 722.4 Digital Computers and Systems - 723.1 Computer Programming - 723.2 Data Processing and Image Processing - 723.5 Computer Applications
DOI:10.1007/s00289-008-0027-6
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611711678
Title:Mesoporous silica-coated superparamagnetic magnetite functionalized with CuO and its application as a desulfurizer
Authors:Qu, Lingling (1); Tie, Shaolong (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Corresponding author:Tie, S.
(tiesl@scnu.)
Source title:Microporous and Mesoporous Materials
Abbreviated source title:Microporous Mesoporous Mater.
Volume:117
Issue:1-2
Issue date:January 1, 2009
Publication year:2009
Pages:402-405
Language:English
ISSN:13871811
CODEN:MIMMFJ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Well-dispersed superparamagnetic nanocomposites, mesoporous silica-coated nano-sized magnetite (MSNSM) as a magnetic carrier and CuO-coated MSNSM (CuO-MSNSM) as a new desulfurizer have been reported. The MSNSM, prepared via a nano-assembling method by using cationic surfactants as templates, consists of a 12-nm-in-diameter core of magnetite particle and about 4-nm-thickness shell of mesoporous silica (MS), and shows high specific surface area (ca. 154 m2/g). The CuO-MSNSM was obtained by immersing the MSNSM into a copper solution, which formed a nano-scaled particle of CuO onto the surface of MSNSM upon followed calcination. The results revealed that both MSNSM and CuO-MSNSM exhibit strongly superparamagnetic properties with saturation magnetization values (Ms) of over 28 emu/g. Both would be potential functional magnetic carriers. As an example of its wide applications, the CuO-MSNSM was tested as a desulfurizer. It was found that the CuO-MSNSM is an excellent organic sulfur adsorber, performing fully separation of the organic sulfur in a model dodecanethiol-added petroleum liquid. © 2008 Elsevier Inc. All rights reserved.
Number of references:26
Main heading:Copper oxides
Controlled terms:Adsorption - Calcination - Cationic surfactants - Civil aviation - Copper - Desulfurization - Dyes - Iron ores - Magnetite - Oxide minerals - Oxides - Saturation magnetization - Silica - Sulfur - Superparamagnetism - Surface active agents
Uncontrolled terms:Adsorber - Dodecanethiol - Functionalized - High specific surface areas - Magnetic carriers - Magnetite particles - Mesoporous silicas - Organic sulfurs - Porous silica - Superparamagnetic - Superparamagnetic nanocomposites - Superparamagnetic properties
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 802.2 Chemical Reactions - 802.3 Chemical Operations - 812 Ceramics, Refractories and Glass - 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 804 Chemical Products Generally - 712.1 Semiconducting Materials - 708.4 Magnetic Materials - 431.1 Air Transportation, General - 482.2 Minerals - 504.3 Heavy Metal Mines - 544.1 Copper - 545.1 Iron - 701.2 Magnetism: Basic Concepts and Phenomena
DOI:10.1016/j.micromeso.2008.07.028
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090311866386
Title:Magnetic bead and nanoparticle based electrochemiluminescence amplification assay for direct and sensitive measuring of telomerase activity
Authors:Zhou, Xiaoming (1); Xing, Da (1); Zhu, Debin (1); Jia, Li (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Analytical Chemistry
Abbreviated source title:Anal. Chem.
Volume:81
Issue:1
Issue date:January 1, 2009
Publication year:2009
Pages:255-261
Language:English
ISSN:00032700
CODEN:ANCHAM
Document type:Journal article (JA)
Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States
Abstract:The broad-spectrum expression of telomerase in most malignancies makes it a promising target for a cancer diagnostic and prognostic tool. Conventional polymerase chain reaction (PCR)-based telomerase activity assay is highly sensitive but susceptible to amplification-related errors. Here, we present a novel approach to telomerase activity detection. The detection of telomerase activity is accomplished by the hybridization of electrochemiluminescence (ECL) nanoprobes to telomerase reaction products, subsequent capture by magnetic beads, and in situ measurement of the light signal from ECL nanoprobes. The ECL intensity directly reflects the quantity of telomerase reaction products, thus telomerase activity. The high sensitivity afforded by the current magnetic bead and nanoparticle based ECL detection platform allows measuring of telomerase activity from as little as 500 cultured cancer cells in crude cell extracts without the PCR amplification of telomerase reaction products. In addition, a comparative study of the ECL nanoprobe and linear telomere antisense ECL probe was executed. By the employment of the ECL nanoprobe, a gain of about 100-fold elevation of sensitivity was determined. The method described here is ideal for telomerase activity analysis due to its reliability and high sensitivity. © 2009 American Chemical Society.
Number of references:55
Main heading:Emitter coupled logic circuits
Controlled terms:Amplification - Cosmic rays - Nanoparticles - Nanoprobes - Reliability - Reliability analysis
Uncontrolled terms:Anti senses - Cancer cells - Cancer diagnostics - Cell extracts - Comparative studies - Electrochemiluminescence - High sensitivities - Highly sensitives - In-situ - Light signals - Magnetic beads - PCR amplifications - Polymerase Chain reactions - Reaction products - Sensitive measuring - Spectrum expressions - Telomerase - Telomerase activities - Telomere
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 933 Solid State Physics - 913 Production Planning and Control; Manufacturing - 922.2 Mathematical Statistics - 932 High Energy Physics; Nuclear Physics; Plasma Physics - 913.3 Quality Assurance and Control - 721.2 Logic Elements - 714.2 Semiconductor Devices and Integrated Circuits - 421 Strength of Building Materials; Mechanical Properties - 422.2 Test Methods - 657 Space Physics - 708 Electric and Magnetic Materials - 712.2 Thermionic Materials - 713.1 Amplifiers
DOI:10.1021/ac801914b
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611701596
Title:Asymptotic speed of propagation and traveling wave solutions for a lattice integral equation
Authors:Weng, Peixuan (1); Tian, Yanling (1)
Author affiliation:(1) School of Mathematics, South China Normal University, Guangzhou, 510631, China
Corresponding author:Weng, P.
(wengpx@scnu.)
Source title:Nonlinear Analysis, Theory, Methods and Applications
Abbreviated source title:Nonlinear Anal Theory Methods Appl
Volume:70
Issue:1
Issue date:January 1, 2009
Publication year:2009
Pages:159-175
Language:English
ISSN:0362546X
CODEN:NOANDD
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:We investigate the asymptotic speed of propagation and monotone traveling wave solutions for a lattice integral equation which is an epidemic model while the population is distributed on one-dimensional lattice Z. It is proved that the asymptotic speed of propagation c* coincides with the minimal wave speed. © 2007 Elsevier Ltd. All rights reserved.
Number of references:17
Main heading:Speed
Controlled terms:Asymptotic analysis - Integral equations - Solutions
Uncontrolled terms:Asymptotic speed of propagation - Epidemic models - Lattice integral equation - Minimal wave speeds - Speed of propagations - Traveling wave solution - Traveling waves
Classification code:801 Chemistry - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 921 Mathematics - 921.2 Calculus - 931.1 Mechanics
DOI:10.1016/j.na.2007.11.043
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090411877352
Title:Oscillation criteria for second order quasilinear neutral delay differential equations
Authors:Ye, Luhong (1); Xu, Zhiting (1)
Author affiliation:(1) School of Mathematics, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xuzhit@)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:207
Issue:2
Issue date:January 15, 2009
Publication year:2009
Pages:388-396
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:Oscillation criteria for second order quasilinear delay differential equation(r (t) ψ (x (t)) | Z′ (t) |α - 1 Z′ (t))′ + q (t) f (x (σ (t))) = 0, t ≥ t0,where Z (t) = x (t) + p (t) x (τ (t)) and α > 0, are established under the conditions: ∫t0∞ r- 1 / α (s) ds = ∞ or ∫t0∞ r- 1 / α (s) ds < ∞, respectively. The results obtained here improve and extend some known results in literature. © 2008 Elsevier Inc. All rights reserved.
Number of references:24
Main heading:Security of data
Controlled terms:Differential equations - Time varying systems
Uncontrolled terms:Delay differential equations - Neutral delay differential equation - Oscillation - Quasilinear - Second order
Classification code:723.2 Data Processing and Image Processing - 731.1 Control Systems - 921.2 Calculus - 961 Systems Science
DOI:10.1016/j.amc.2008.10.051
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090511883170
Title:Oscillation criteria for two-dimensional dynamic systems on time scales
Authors:Xu, Youjun (1); Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xuzhit@)
Source title:Journal of Computational and Applied Mathematics
Abbreviated source title:J. Comput. Appl. Math.
Volume:225
Issue:1
Issue date:March 1, 2009
Publication year:2009
Pages:9-19
Language:English
ISSN:03770427
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:We establish some oscillation criteria for the two-dimensional dynamic system {(xΔ (t) = b (t) g [yσ (t)],; yΔ (t) = - a (t) f [x (t)],) on a time scale T. Our results not only unify the oscillation of two-dimensional differential systems and difference systems, but include the oscillation results for differential systems and provide new oscillation criteria for difference systems. Several examples are considered to illustrate the main results. Crown Copyright © 2008.
Number of references:21
Main heading:Two dimensional
Controlled terms:Dynamic programming - Dynamical systems
Uncontrolled terms:Difference systems - Differential systems - Dynamic systems - Oscillation - Time scales
Classification code:723.5 Computer Applications - 902.1 Engineering Graphics - 921 Mathematics - 921.5 Optimization Techniques - 931 Classical Physics; Quantum Theory; Relativity
DOI:10.1016/j.cam.2008.06.010
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516457
Title:Existence of traveling wave solutions in nonlinear delayed cellular neural networks
Authors:Liu, Xiuxiang (1); Weng, Peixuan (1); Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Liu, X.
(liuxx@scnu.)
Source title:Nonlinear Analysis: Real World Applications
Abbreviated source title:Nonlinear Anal. Real World Appl.
Volume:10
Issue:1
Issue date:February 2009
Publication year:2009
Pages:277-286
Language:English
ISSN:14681218
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:This paper is concerned with the existence of traveling wave solutions of cellular neural network systems distributed in the one-dimensional lattice Z. The dynamics of each given cell depends on itself and its nearest right neighbor cell where delays exist in self-feedback and neighborhood interaction. Under appropriate assumptions, we can prove the existence of traveling wave solutions whose output function is not piecewise linear. © 2007 Elsevier Ltd. All rights reserved.
Number of references:10
Main heading:Cellular neural networks
Controlled terms:Artificial intelligence - Computer networks - Dynamics - Piecewise linear techniques - Vegetation
Uncontrolled terms:Lattice dynamical system - Monotone iteration - Traveling wave solutions
Classification code:921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 731.1 Control Systems - 723.4 Artificial Intelligence - 723 Computer Software, Data Handling and Applications - 931.1 Mechanics - 722 Computer Systems and Equipment - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 525.1 Energy Resources and Renewable Energy Issues - 461.9 Biology - 718 Telephone Systems and Related Technologies; Line Communications
DOI:10.1016/j.nonrwa.2007.09.010
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911924800
Title:Swapped (OTIS) networks built of connected basis networks are maximally fault tolerant
Authors:Chen, Weidong (1); Xiao, Wenjun (1); Parhami, Behrooz (3)
Author affiliation:(1) Department of Computer Science, South China University of Technology, Guangzhou 510641, China; (2) Department of Computer Science, South China Normal University, Guangzhou 510631, China; (3) Department of Electrical and Computer Engineering, University of California, Santa Barbara, Santa Barbara, CA 93106-9560, United States
Corresponding author:Chen, W.
Source title:IEEE Transactions on Parallel and Distributed Systems
Abbreviated source title:IEEE Trans Parallel Distrib Syst
Volume:20
Issue:3
Issue date:2009
Publication year:2009
Pages:361-366
Language:English
ISSN:10459219
CODEN:ITDSEO
Document type:Journal article (JA)
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:An optical transpose interconnection system (OTIS) network with n2 nodes is a two-level swapped architecture built of n copies of an n-node basis network that constitute its clusters. A simple rule for intercluster connectivity (node j in cluster i connected to node i in cluster j, for all i ≠ j) leads to regularity, modularity, packageability, fault tolerance, and algorithmic efficiency of the resulting networks. We prove that an OTIS (swapped) network with a connected basis network possesses maximal fault tolerance, regardless of whether its basis network is maximally fault tolerant. We also show how the corresponding maximal number of node-disjoint paths between two nodes of a swapped network can be algorithmically constructed in a manner that is independent of the existence and construction of node-disjoint paths within its basis network. Our results are stronger than previously published results and they replace a number of proofs and constructions in the literature for specific basis networks. Additionally, we use our parallel path constructions to establish that the fault diameter and wide diameter of an OTIS network is no more than 4 units greater than its diameter. © 2009 IEEE.
Number of references:18
Main heading:Quality assurance
Controlled terms:Errors - Fault tolerance - Interconnection networks - Reliability
Uncontrolled terms:Connectivity - Fault diameter - Interconnection network - Maximal fault tolerance - Node-disjoint paths - OTIS network - Parallel paths - Robustness - Swapped network - Topological properties - Wide diameter
Classification code:921 Mathematics - 913.3 Quality Assurance and Control - 731 Automatic Control Principles and Applications - 922.2 Mathematical Statistics - 722.4 Digital Computers and Systems - 703.1 Electric Networks - 421 Strength of Building Materials; Mechanical Properties - 721 Computer Circuits and Logic Elements
DOI:10.1109/TPDS.2008.98
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911932208
Title:Study of triacontyl-functionalized monolithic silica capillary column for reversed-phase capillary liquid chromatography
Authors:Chen, Yashun (1); Chen, Jie (1); Jia, Li (1)
Author affiliation:(1) Ministry of Education Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Jia, L.
(jiali@scnu.)
Source title:Journal of Chromatography A
Abbreviated source title:J. Chromatogr. A
Volume:1216
Issue:12
Issue date:March 20, 2009
Publication year:2009
Pages:2597-2600
Language:English
ISSN:00219673
CODEN:JCRAEY
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:A novel stationary phase triacontyl-functionalized monolithic silica capillary column was successfully prepared for reversed-phase capillary liquid chromatography. The performance of the monolithic silica capillary column coated with triacontyl chain for the separation of alkylbenzenes, xylene isomers, polycyclic aromatic hydrocarbons, and mixture of α- and β-carotenes was studied, which was compared to that using the monolithic silica capillary column coated with octadecyl chain. The comparison results showed that triacontyl-functionalized monolithic silica capillary column would be a promising media to be used for the separation of isomeric solutes with long chain in reversed-phase capillary liquid chromatography. © 2009 Elsevier B.V. All rights reserved.
Number of references:30
Main heading:Column chromatography
Controlled terms:Aromatic hydrocarbons - Body fluids - Chromatographic analysis - High performance liquid chromatography - Isomers - Liquids - Polycyclic aromatic hydrocarbons - Silica - Xylene
Uncontrolled terms:Alkyl benzenes - Comparison results - Long chains - Octadecyl - Performance - Reversed-phase capillary liquid chromatography - Stationary phase - Triacontyl-functionalized monolithic silica capillary column - Xylene isomers
Classification code:812 Ceramics, Refractories and Glass - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 804 Chemical Products Generally - 931.2 Physical Properties of Gases, Liquids and Solids - 802.3 Chemical Operations - 801 Chemistry - 482.2 Minerals - 461.2 Biological Materials and Tissue Engineering - 801.2 Biochemistry
DOI:10.1016/j.chroma.2009.01.058
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20091011940186
Title:Comparative study of synthesis and characterization of monodispersed SiO2 @ Y2O3:Eu3+ and SiO2 @ Y2O3:Eu3+ @ SiO2 core-shell structure phosphor particles
Authors:Fu, Yuan-Xiang (1); Sun, Yan-Hui (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Corresponding author:Sun, Y.-H.
(sunyanhui0102@)
Source title:Journal of Alloys and Compounds
Abbreviated source title:J Alloys Compd
Volume:471
Issue:1-2
Issue date:March 5, 2009
Publication year:2009
Pages:190-196
Language:English
ISSN:09258388
CODEN:JALCEU
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:Monodispersed SiO2 @ Y2O3:Eu3+ and SiO2 @ Y2O3:Eu3+ @ SiO2 nanospheres contain SiO2 as core and Y2O3:Eu3+ as shell or another SiO2 shell coated on the surface of SiO2 @ Y2O3:Eu3+ particles were synthesized, respectively. The synthesis of core-shell particles SiO2 @ Y2O3:Eu3+ involved the SiO2 core ultrasonically dispersed into a certain amount of polyethylene glycol solution, and the deposition of Y2O3:Eu3+ on the surface of SiO2 core through homogeneous precipitation of Y3+ and Eu3+ using urea as precipitator. More over, the particles SiO2 @ Y2O3:Eu3+ as core was ultrasonically dispersed into a certain amount of ethanol and followed by sol-gel processing of tetraethoxysilane to form another silica shell. The morphology structures and sizes of the resulting particles were analyzed by SEM and TEM, which indicated that the resulting particles dispersed regularly and the microstructures of the particles are clearly core-shell or core-shell-shell structures. XRD patterns characterized the crystal structures of deposited Y2O3:Eu3+ shell or SiO2 shell after heat treatment at 900 °C. Photoluminescence determination showed that both the phosphors can be excited by ultra violet at 254 nm which showed red-shift. Under the excitation at 254 nm, the Eu3+ ion mainly shows its characteristic red (612 nm, 5D0-7F2) emission in the particles from Y2O3:Eu3+ shell. The emission intensity of Eu3+ was affected by the SiO2 core or shell in some extent. © 2008 Elsevier B.V. All rights reserved.
Number of references:32
Main heading:Europium
Controlled terms:Complexation - Ethanol - Ethylene glycol - Gelation - Luminescence - Optical properties - Phosphors - Plating - Polyethylene glycols - Polyethylene oxides - Precipitation (chemical) - Rare earth alloys - Rare earths - Shells (structures) - Silica - Sol-gel process - Synthesis (chemical) - Ultrasonics - Urea - Yttrium alloys
Uncontrolled terms:Coating materials - Comparative studies - Core shells - Core-shell particles - Core-shell structures - Emission intensities - Homogeneous precipitations - Mono-dispersed - Morphology structures - Phosphor particles - Precipitation - Rare earth alloys and compounds - Red shifts - Sem and tem - Shell structures - Silica shells - Sol-gel processing - Synthesis and characterizations - Tetraethoxysilane - Ultra violets - XRD patterns
Classification code:815.1.1 Organic Polymers - 802.2 Chemical Reactions - 802.3 Chemical Operations - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812 Ceramics, Refractories and Glass - 812.3 Glass - 813.1 Coating Techniques - 753.1 Ultrasonic Waves - 408.2 Structural Members and Shapes - 481.2 Geochemistry - 482.2 Minerals - 741.1 Light/Optics - 523 Liquid Fuels - 547.2 Rare Earth Metals - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 539.3 Metal Plating
DOI:10.1016/j.jallcom.2008.03.055
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090711903096
Title:Photoacoustic tomography imaging system based on digital B-mode ultrasound diagnosis equipment
Authors:Guo, Hua (1); Yang, Sihua (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Yang, S.
(yangsh@scnu.)
Source title:Review of Scientific Instruments
Abbreviated source title:Rev. Sci. Instrum.
Volume:80
Issue:1
Issue date:2009
Publication year:2009
Article number:014903
Language:English
ISSN:00346748
CODEN:RSINAK
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:A photoacoustic tomography imaging system with B-mode digital ultrasound diagnosis equipment was designed, fabricated, and tested for biomedical imaging. The system for biomedical diagnostics was designed with four parts consisting of an irradiating source, digital B-mode ultrasound diagnostic equipment with a liner transducer array, data acquisition and transmission system, and rotation devices for imaging scanning. Multielement phase-controlled focus technique was applied to reduce the data-acquisition time and enhance signal-to-noise ratio. Under the self-designed working sequence, data-acquisition time of an image can be reduced to 12 s. A series of experiments were performed to estimate the imaging quality of the system. The lateral and elevational resolutions of the system were detected to be 0.25 and 1.4 mm, respectively. The results show that the system has the feasibility to be used as a medical imaging method, and it may provide a new rapid and noninvasive imaging modality for clinical applications. © 2009 American Institute of Physics.
Number of references:18
Main heading:Ultrasonic imaging
Controlled terms:Acoustic waves - Data communication equipment - Diagnostic radiography - Digital devices - Digital image storage - Electric power transmission - Imaging systems - Medical imaging - Mergers and acquisitions - Optoelectronic devices - Photoacoustic effect - Signal to noise ratio - Time series - Tomography - Ultrasonic applications - Ultrasonics
Uncontrolled terms:Acquisition time - Bio medical diagnostics - Biomedical imaging - Clinical applications - Diagnostic equipments - Imaging methods - Imaging qualities - Multi elements - Non-invasive imaging - Photoacoustic tomographies - Signal-to-noise ratios - System-based - Transducer arrays - Transmission systems - Ultrasound diagnosis
Classification code:723.2 Data Processing and Image Processing - 723.5 Computer Applications - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 722.4 Digital Computers and Systems - 746 Imaging Techniques - 753.1 Ultrasonic Waves - 753.3 Ultrasonic Applications - 912 Industrial Engineering and Management - 931.2 Physical Properties of Gases, Liquids and Solids - 751.1 Acoustic Waves - 722.3 Data Communication, Equipment and Techniques - 461.7 Health Care - 706.1.1 Electric Power Transmission - 713.5 Other Electronic Circuits - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television - 461.1 Biomedical Engineering - 716.1 Information Theory and Signal Processing - 717.2 Optical Communication Equipment - 718 Telephone Systems and Related Technologies; Line Communications - 721 Computer Circuits and Logic Elements - 722.1 Data Storage, Equipment and Techniques - 717 Optical Communication
DOI:10.1063/1.3069292
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090311858916
Title:Potential ability of hematoporphyrin to enhance an optical coherence tomographic image of gastric cancer in vivo in mice
Authors:Xiong, Honglian (1); Zeng, Changchun (1); Guo, Zhouyi (1); Zhong, Huiqing (1); Wang, Ruikang (2); Liu, Songhao (1); He, Yonghong (3)
Author affiliation:(1) Lab. of Photonic Chinese Medicine, MOE Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Biomedical Engineering, Oregon Health and Science University, Beaverton, OR 97006, United States; (3) Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
Corresponding author:Zeng, C.
(gzzysys@scnu.)
Source title:Physics in Medicine and Biology
Abbreviated source title:Phys. Med. Biol.
Volume:53
Issue:23
Issue date:December 7, 2008
Publication year:2008
Pages:6767-6775
Language:English
ISSN:00319155
E-ISSN:13616560
CODEN:PHMBA7
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:An ideal diagnostic system for the tumor tissues should be able to detect and define the location of tumor tissues and the early development of malignant diseases. There is great need for enhancement of imaging ability to tumor tissues. Optical coherence tomography (OCT) is used in detection and location of varied tumor tissues. In order to improve the sensitivity and specificity of an OCT image, hematoporphyrin as a new type of contrast agent was used in this study. The orthotopic graft model of gastric cancer in nude mice was used. The image formations of the tumor tissues without and with injection of hematoporphyrin in vivo were obtained by an OCT system at a 1310 nm central wavelength. The experimental results showed that the tumor tissues accumulated with hematoporphyrin have an ability of light absorption which results in the increase of signal attenuation in the gastric cancer tissues, and that the boundary between the tumor tissues and surrounding normal tissues was perfectly defined owing to the accumulation of hematoporphyrin. From the experimental results, it is found that hematoporphyrin, a photosensitizing agent, could be used as a contrast agent for OCT imaging of tumor tissues, which offer an effective OCT image method for clinical detection and localization of tumor tissues in vivo. © 2008 Institute of Physics and Engineering in Medicine.
Number of references:21
Main heading:Histology
Controlled terms:Coherent light - Diagnostic radiography - Experiments - Medical imaging - Porphyrins - Signal processing - Tissue - Tomography - Tumors
Uncontrolled terms:Central wavelengths - Clinical detections - Contrast agents - Diagnostic systems - Early developments - Gastric cancers - HematoPorphyrin - Image formations - In-vivo - Malignant diseases - Normal tissues - Nude mouse - OCT images - OCT imaging - Optical Coherence tomographies - Optical coherences - Orthotopic - Photosensitizing agents - Potential abilities - Sensitivity and specificities - Signal attenuations - Tomographic images - Tumor tissues
Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 901.3 Engineering Research - 804.1 Organic Compounds - 746 Imaging Techniques - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 716.1 Information Theory and Signal Processing - 461.9 Biology - 461.7 Health Care - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering
DOI:10.1088/0031-9155/53/23/008
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090211852084
Title:Outlier detection algorithm based on modified scaling CDC/MVT
Authors:Xiao, Ying-Wang (1); Yao, Mei-Yin (1)
Author affiliation:(1) South China Normal University, Foshan 528225, China
Corresponding author:Xiao, Y.-W.
Source title:Xitong Fangzhen Xuebao / Journal of System Simulation
Abbreviated source title:Xitong Fangzhen Xuebao
Volume:20
Issue:23
Issue date:December 5, 2008
Publication year:2008
Pages:6432-6437
Language:Chinese
ISSN:1004731X
CODEN:XFXUFS
Document type:Journal article (JA)
Publisher:Acta Simulata Systematica Sinica, P.O. Box 3929, Beijing, 100854, China
Abstract:Because statistical monitoring model based on multi-way principal component analysis was strongly affected by outlying observations, a method of extracting outliers from the modeling historical database, based on modified scaling CDC/MVT (Closest Distance to Center/ellipsoidal Multivariate Trimming) was proposed. The CDC was incorporated with MVT in the proposed algorithm. Firstly, the algorithm utilized the modified scale to obtain the mean and standard deviation of the off-line modeling normal data, and carried out centering and standardization for the modeling data using the mean and standard deviation. Secondly, the most consistent half observations were extracted from the modeling historical database by the algorithm of CDC. Finally, these observations were then used to initialize the mean and covariance of Mahalanobis distance, and the other observations were gotten by the iterative calculation of Mahalanobis distance. This proposed algorithm was applied to extract outliers from β-mannanase fermentation batch process and compared with the other robust outlier detection algorithms. The application results show that the proposed algorithm could effectively extract the outliers from the modeling historical database.
Number of references:10
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811557500
Title:Erratum: The great improvement effect of pores on ZT in Co1-x Nix Sb3 system (Applied Physics Letters (2008) 93 (042108))
Authors:He, Qinyu (0); Hu, Shejun (0); Tang, Xingui (0); Lan, Yucheng (0); Yang, Jian (0); Wang, Xiaowei (0); Ren, Zhifeng (0); Hao, Qing (0); Chen, Gang (0)
Corresponding author:He, Q.
Corr. author affiliation:School of Physics, Department and Telecommunication, South China Normal University, Guangzhou 510631, China
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:93
Issue:8
Issue date:2008
Publication year:2008
Article number:089902
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics Inc., Melville, NY 11747-4502, United States
Abstract:No abstract available
DOI:10.1063/1.2977996
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084411669172
Title:Multi-effect distillation process for separation of LNG
Authors:Lu, Xiang-Hong (0); Lu, En-Xi (0)
Corresponding author:Lu, X.-H.
(xhlu@scnu.)
Corr. author affiliation:School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Source title:Huaxue Gongcheng/Chemical Engineering (China)
Abbreviated source title:Huaxue Gongcheng
Volume:36
Issue:9
Issue date:September 2008
Publication year:2008
Pages:9-11+18
Language:Chinese
ISSN:10059954
CODEN:HUGOEN
Document type:Journal article (JA)
Publisher:Editorial Office of Chemical Engineering (China), Xi'an, 710054, China
Abstract:The separation process of liquefied natural gas to obtain iC4, nC4 and C5+ was simulated with commercial software Aspen Plus, and the existing conventional distillation process was compared with new double-effect distillation arrangement and heat-integrated arrangement. The simulated results show that at the same flow-rate and with the same numbers of total tower plates, the two modified processes consume much less energy than the existing conventional series, of which the heat-integrated one has the best energy-saving effect. The double-effect distillation arrangement can save energy by 31.9%, and the heat-integrated process can reach 35.8% compared with the conventional arrangement. Both of the new separation processes are prosperous and worth of propagation in industrial application.
Number of references:7
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011406313
Title:A comparative study on the free radical scavenging activities of some fresh flowers in southern China
Authors:Youwei, Zeng (0); Jinlian, Zhao (0); Yonghong, Peng (0)
Corresponding author:Yonghong, P.
(pengyh@scnu.)
Corr. author affiliation:College of Life Science, Guangdong Key Lab of Biotechnology for Plant Development, South China Normal University, Guangzhou, 510631 Guangdong, China
Source title:LWT - Food Science and Technology
Abbreviated source title:LWT - Food Sci. Technol.
Volume:41
Issue:9
Issue date:November 2008
Publication year:2008
Pages:1586-1591
Language:English
ISSN:00236438
CODEN:LBWTAP
Document type:Journal article (JA)
Publisher:Academic Press, London, NW1 7DX, United Kingdom
Abstract:The scavenging activities of the crude aqueous extracts from 69 kinds of fresh flowers in southern China on DPPH, superoxide and hydroxyl free radicals, and their polyphenolic contents, were investigated and evaluated in the paper. The results showed that the extracts of red rose flowers had obviously stronger antioxidant activity when compared to other flowers. Polyphenolic content had significant relationships with the 1,1-diphenyl-2-picrylhydrazyl (DPPH) (r = 0.983, P less than or equal 0.01) and superoxide free radical scavenging activity (FRSA) (r = 0.588, P less than or equal 0.01), but no significant relationship with hydroxyl FRSA (r = 0.184, P > 0.05) in tested open flowers. However, in tested flower buds, polyphenolic content was correlated well with the DPPH FRSA (r = 0.993, P less than or equal 0.01), superoxide FRSA (r = 0.738, P less than or equal 0.01), and hydroxyl FRSA (r = 0.737, P less than or equal 0.01), respectively. Rose was found to be a promising resource of antioxidant polyphenolics that might contribute to the development of functional food. © 2007.
Number of references:43
DOI:10.1016/j.lwt.2007.10.010
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811234047
Title:Optical emission spectroscopy of electron cyclotron resonance-plasma enchanced metalorganic chemical vapor deposition process for deposition of GaN film
Authors:Fu, Silie (1); Chen, Junfang (1); Li, Yun (1); Li, Wei (1); Zhang, Maoping (1); Hu, Shejun (1)
Author affiliation:(1) School of Physics and Communication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Chen, J.
(chenjf@scnu.)
Source title:Plasma Science and Technology
Abbreviated source title:Plasma Sci. Technol.
Volume:10
Issue:1
Issue date:Febrary 1, 2008
Publication year:2008
Pages:70-73
Language:English
ISSN:10090630
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:An investigation was made into the nitrogen-trimethylgallium mixed electron cyclotron resonance (ECR) plasma by optical emission spectroscopy (OES). The ECR plasma enhanced metalorganic chemical vapour deposition technology was adopted to grow GaN film on an α-Al2O3 substrate. X-ray diffraction (XRD) analyses showed that the peak of GaN (0002) was at 2θ = 34.48°, being sharper and more intense with the increase in the N2: trimethylgallium(TMG) flow ratio. The results demonstrate that the electron cyclotron resonance-plasma enchanced metalorganic chemical vapor deposition (ECR-MOPECVD) technology is evidently advantageous for the deposition of GaN film at a low growth temperature.
Number of references:18
Main heading:Thin films
Controlled terms:Electron cyclotron resonance - Gallium nitride - Metallorganic chemical vapor deposition - Optical emission spectroscopy - Plasma enhanced chemical vapor deposition - X ray diffraction
Uncontrolled terms:Flow ratios
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 802.2 Chemical Reactions - 804.2 Inorganic Compounds - 931.3 Atomic and Molecular Physics - 932.3 Plasma Physics - 941.4 Optical Variables Measurements
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1088/1009-0630/10/1/15
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811370236
Title:Oscillation criteria for second order forced elliptic differential equations with mixed nonlinearities
Authors:Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xztxhyyj@pub.guangzhou.)
Source title:Computers and Mathematics with Applications
Abbreviated source title:Comput Math Appl
Volume:56
Issue:5
Issue date:September 2008
Publication year:2008
Pages:1225-1235
Language:English
ISSN:08981221
CODEN:CMAPDK
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:In the case of oscillatory potentials, we establish some oscillation criteria for the second order forced elliptic differential equation with mixed nonlinearities div (A (x) ∇ y) + ⟨ b (x), ∇ y ⟩ + C (x, y) = e (x) . When N = 1, our results extend those of Kong [Q. Kong, Interval criteria for oscillation of second order linear ordinary differential equations, J. Math. Anal. Appl. 229 (1999) 258-270] for certain second order linear ordinary differential equations, Sun and Meng [Y.G. Sun, F.W. Meng, Interval criteria for oscillation of second order differential equations with mixed nonlinearities, Appl. Math. Comput. (2007), doi:10.10.1016/j.amc.2007.08.042] for certain second order differential equations with mixed nonlinearities, Yang [Q. Yang, Interval oscillation criteria for a second order nonlinear ordinary differential equations with oscillatory potential, Appl. Math. Comput. 135 (2003) 49-64] for a forced second order superlinear ordinary differential equation. When N ≥ 2, our theorems are more general, and improve the oscillation criteria of Zhuang [R.-K. Zhuang, Annual oscillation criteria for second order nonlinear elliptic differential equations, J. Comput. Anal. Math. (2007), doi:10.1016/j.cam.2007.06.031] for a forced second order undamped elliptic differential equation. © 2008 Elsevier Ltd. All rights reserved.
Number of references:22
Main heading:Ordinary differential equations
Controlled terms:Bessel functions - Control nonlinearities - Control theory - Difference equations - Differential equations - Differentiation (calculus) - Dynamical systems - Eigenvalues and eigenfunctions - Extrapolation - Linear equations - Mathematical morphology - Microfluidics - Nonlinear equations - Nonlinear programming
Uncontrolled terms:Elsevier (CO) - General (CO) - Interval criteria - Linear ordinary differential equations - non-linearities - Oscillation criterion - Second orders - Second-order differential equations - superlinear
Classification code:921.2 Calculus - 921.1 Algebra - 921 Mathematics - 921.6 Numerical Methods - 731.1 Control Systems - 723.1 Computer Programming - 632.5.1 Microfluidics - 723.2 Data Processing and Image Processing
DOI:10.1016/j.camwa.2008.02.024
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111273363
Title:Development of imaging system for optical coherence tomography in ophthalmology
Authors:He, Wei-Hong (1); He, Yong-Hong (2); Li, Peng (2); Zhu, Yi (2); Shao, Yong-Hong (2); Liang, Rui-Sheng (1); Zeng, Nan (2); Ma, Hui (2)
Author affiliation:(1) School of Information Photoelectric Science and Technology, South China Normal University, Guangzhou 510631, China; (2) Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
Corresponding author:He, W.-H.
(hewh01@)
Source title:Guangxue Jingmi Gongcheng/Optics and Precision Engineering
Abbreviated source title:Guangxue Jingmi Gongcheng
Volume:16
Issue:3
Issue date:March 2008
Publication year:2008
Pages:438-443
Language:Chinese
ISSN:1004924X
CODEN:GJGOF4
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences, 140 Renmin Street, Changchun, 130022, China
Abstract:In order to obtain the Optical Coherence Tomography (OCT) images of macular region and optic nerve head in an eyeground, the application of OCT to ophthalmology is investigated. Because of the high transmittance of ocular media, an OCT system with Broadband Source (SLD) centered at 854.8 nm wavelength is applied for imaging in ophthalmology. Based on rapid scanning optical delay line in Fourier domain, the rapid scanning imaging is realized. Then, a device consisting of a OCT imaging path, a lighting path and a photographic path is developed to detect eyeground to obtain the OCT images of macular region and optic nerve head in the eyeground, and the system imaging depth is 3 mm. The experimental results show that OCT is a biomedical imaging method with high resolution, non-invasive and non-contact detecting for internal tissue structure and physiology.
Number of references:10
Main heading:Optical tomography
Controlled terms:Biomedical engineering - Imaging systems - Neurons - Nondestructive examination - Ophthalmology - Physiology - Scanning - Tissue - Wavelength
Uncontrolled terms:Broadband Source - Internal tissue structure - Lighting path - Macular region - OCT imaging path - Optic nerve head - Rapid scanning optical delay line
Classification code:746 Imaging Techniques - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 461.9 Biology - 461.6 Medicine and Pharmacology - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering
Treatment:Applications (APP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811226779
Title:Analysis of performance and optimum configuration of two-stage semiconductor thermoelectric module
Authors:Li, Kai-Zhen (1); Liang, Rui-Sheng (1); Wei, Zheng-Jun (1)
Author affiliation:(1) School of Information and Photoelectric Science and Technology, South China Normal University, Guang Zhou 510006, China
Corresponding author:Liang, R.-S.
(gdz01@scnu.)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:17
Issue:4
Issue date:April 1, 2008
Publication year:2008
Pages:1349-1354
Language:English
ISSN:16741056
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:In this paper, the theoretical analysis and simulating calculation were conducted for a basic two-stage semiconductor thermoelectric module, which contains one thermocouple in the second stage and several thermocouples in the first stage. The study focused on the configuration of the two-stage semiconductor thermoelectric cooler, especially investigating the influences of some parameters, such as the current I1 of the first stage, the area A1 of every thermocouple and the number n of thermocouples in the first stage, on the cooling performance of the module. The obtained results of analysis indicate that changing the current I1 of the first stage, the area A1 of thermocouples and the number n of thermocouples in the first stage can improve the cooling performance of the module. These results can be used to optimize the configuration of the two-stage semiconductor thermoelectric module and provide guides for the design and application of thermoelectric cooler. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:12
Main heading:Thermocouples
Controlled terms:Cooling systems - Thermoelectricity
Uncontrolled terms:Coefficient of performance - Cooling capacity
Classification code:641.2 Heat Transfer - 701.1 Electricity: Basic Concepts and Phenomena - 944.5 Temperature Measuring Instruments
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1088/1674-1056/17/4/032
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611209604
Title:On overload control of parlay application server in next generation network
Authors:ZHANG, Qi-zhi (1)
Author affiliation:(1) School of Computer, South China Normal University, Guangzhou, 510631, China
Corresponding author:ZHANG, Q.-z.
(Quizhi163@)
Source title:Journal of China Universities of Posts and Telecommunications
Abbreviated source title:J. China Univ. Post Telecom.
Volume:15
Issue:1
Issue date:March 2008
Publication year:2008
Pages:43-47,60
Language:English
ISSN:10058885
CODEN:JCUPCO
Document type:Journal article (JA)
Publisher:Editorial Deparment, P.O.Box 231, 10 Xi Tucheng Road, Beijing, 100876, China
Abstract:After analyzing the features of the Parlay application server(AS), which provides many services with different time constraints in the next generation network (NGN), a self-adapted overload control algorithm implemented in Parlay AS is proposed. In this algorithm, the service process module in parlay AS uses the earliest deadline first (EDF) serving rule to serve messages, and the overload control mechanism, using the Leaky Bucket algorithm to control message flows, is triggered by estimating the queue waiting time of a newly arriving message. By simulation it shows that this algorithm is a simple, easy-to-use, and available algorithm. © 2008 The Journal of China Universities of Posts and Telecommunications.
Number of references:10
Main heading:Servers
Controlled terms:Algorithms - Computer simulation - Constraint theory - Control theory - Queueing networks - Time domain analysis
Uncontrolled terms:Next generation networks (NGN) - Overload control
Classification code:722 Computer Systems and Equipment - 723 Computer Software, Data Handling and Applications - 723.5 Computer Applications - 731.1 Control Systems - 921 Mathematics - 961 Systems Science
Treatment:Theoretical (THR)
DOI:10.1016/S1005-8885(08)60060-6
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011405239
Title:Analysis of electronic and optical properties for GaN semiconductor materials
Authors:Dong, Shaoguang (1); Fan, Guanghan (1)
Author affiliation:(1) Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou 510631, China; (2) Department of Optoelectronic and Physics, Foshan Science and Technology College, Foshan 528000, China
Corresponding author:Dong, S.
(dshgfosu@)
Source title:Taiyangneng Xuebao/Acta Energiae Solaris Sinica
Abbreviated source title:Taiyangneng Xuebao
Volume:29
Issue:6
Issue date:June 2008
Publication year:2008
Pages:662-665
Language:Chinese
ISSN:02540096
CODEN:TYNPDG
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The electronic and optical properties of GaN materials were studied with the local spin density approximation in this paper, where Cr transition metal substitutes for N in the GaN semiconductor with an atomic concentration of 1.56%. This material, characterized by an isolated and partially filled intermediate band, is a candidate for high-efficiency solar cells. The orbital composition of this intermediate band was analyzed, and it is mainly made up of a t-group orbital of the transition metal. The theoretical calculation results of absorption coefficient show a sub-gap absorption with respect to the semiconductor materials which could lead to an increase of conversion efficiency in solar cells.
Number of references:14
Main heading:Semiconductor materials
Controlled terms:Absorption - Chromium - Concentration (process) - Direct energy conversion - Electric conductivity - Gallium alloys - Gallium nitride - Lead - Local density approximation - Materials properties - Metals - Optical materials - Optical properties - Photovoltaic cells - Rockets - Semiconducting cadmium telluride - Semiconducting gallium - Solar cells - Solar energy - Solar equipment - Transition metals
Uncontrolled terms:AB Sorption coefficients - Atomic concentrations - High-efficiency solar cells - Intermediate band (IB) - Local spin density approximation (LSDA) - Optical (PET) (OPET) - Orbital (CO) - Orbital composition - Transition (Jel Classifications:E52 ,E41 ,E31)
Classification code:921 Mathematics - 702.3 Solar Cells - 712.1 Semiconducting Materials - 712.1.1 Single Element Semiconducting Materials - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 802.3 Chemical Operations - 702 Electric Batteries and Fuel Cells - 421 Strength of Building Materials; Mechanical Properties - 531 Metallurgy and Metallography - 543.1 Chromium and Alloys - 701.1 Electricity: Basic Concepts and Phenomena - 546.1 Lead and Alloys - 654.1 Rockets and Missiles - 657.1 Solar Energy and Phenomena - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811573227
Title:Extraction properties and mechanism of rhodium with dialkyl sulphoxide
Authors:Li, Yao-Wei (1); Qi, Xi-Dui (1); Gu, Guo-Bang (2)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China; (2) School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
Corresponding author:Li, Y.-W.
(liyaowei@scnu.)
Source title:Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science)
Abbreviated source title:Huanan Ligong Daxue Xuebao
Volume:36
Issue:7
Issue date:July 2008
Publication year:2008
Pages:57-61
Language:Chinese
ISSN:1000565X
CODEN:HLDKEZ
Document type:Journal article (JA)
Publisher:South China University of Technology, Guangzhou, 510640, China
Abstract:Rhodium was extracted from an Rh-Sn-Cl system, with dialkyl sulphoxide (DEHSO) as the extractant and with stannous chloride as the activator. The results indicate that the extraction rate of rhodium increases with the molar ratio of Sn to Rh till the maximum of 99% at a molar ratio of 6:1 with 1.0 mol/L DEHSO in 3 mol/L HCl, that the Rh in the loaded organic phase can be stripped with 5 mol/L HCl + 0.03 mol/L NaClO3, and that the extraction obeys the mechanism of acid ion association.
Number of references:13
Main heading:Rhodium
Controlled terms:Computer networks
Uncontrolled terms:Dialkyl sulphoxide - Ion association - Molar ratios - Solvent extraction - Stannous chloride
Classification code:547.1 Precious Metals - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 722 Computer Systems and Equipment - 723 Computer Software, Data Handling and Applications
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081311168153
Title:Magnetic beads-based electrochemiluminescence assay for rapid and sensitive detection of telomerase activity
Authors:Zhou, Xiaoming (1); Xing, Da (1); Zhu, Debin (1); Jia, Li (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Electrochemistry Communications
Abbreviated source title:Electrochem. Commun.
Volume:10
Issue:4
Issue date:April 2008
Publication year:2008
Pages:564-567
Language:English
ISSN:13882481
CODEN:ECCMF9
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:Telomerase is a potential cancer marker. We developed a new and robust telomerase activity assay which combines the modified telomere repeat amplification protocol (TRAP) with magnetic beads-based electrochemiluminescence (ECL) detection. The high performance of this assay is related to the determination of telomerase activity from single cell levels, and ECL intensity is linear over the range of 1-1000 HeLa cell equivalents. The proposed telomerase assay offers a highly cost- and time-effective alternative to presently available telomerase assays, which are limited by tedious and complicated post-PCR detection. © 2008 Elsevier B.V. All rights reserved.
Number of references:22
Main heading:Enzyme activity
Controlled terms:Assays - Chemiluminescence - Costs - Magnetic field effects
Uncontrolled terms:Magnetic beads - Telomerase activity - Telomere repeat amplification protocol (TRAP)
Classification code:461.9 Biology - 701.2 Magnetism: Basic Concepts and Phenomena - 741.1 Light/Optics - 801 Chemistry - 802.2 Chemical Reactions - 911 Cost and Value Engineering; Industrial Economics
Treatment:Experimental (EXP)
DOI:10.1016/j.elecom.2008.01.039
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511483516
Title:Propagation of nonlocal optical solitons in lossy media with exponential-decay response
Authors:Cao, Longgui (1); Zhu, Yeqing (1); Lu, Daquan (1); Hu, Wei (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510006, China
Corresponding author:Hu, W.
(huwei@scnu.)
Source title:Optics Communications
Abbreviated source title:Opt Commun
Volume:281
Issue:19
Issue date:October 1, 2008
Publication year:2008
Pages:5004-5008
Language:English
ISSN:00304018
CODEN:OPCOB8
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Propagation of optical solitons in lossy nonlocal media with exponential-decay response was investigated theoretically. The analytical solutions of nonlocal solitons and breathers are obtained by variational approach which is applied to a (1 + 1)D nonlocal nonlinear Schro¨dinger equation. The critical power of soliton and period of breathers are also obtained in the absence of the loss. When the loss is relatively small, the average beam width of breathers has a trend to expand during propagation. The analytical results are confirmed by numerical simulation. © 2008 Elsevier B.V. All rights reserved.
Number of references:27
Main heading:Solitons
Controlled terms:Computer simulation - Crack propagation - Nonlinear equations
Uncontrolled terms:Analytical results - Analytical solutions - Beam widths - Critical power - Dinger equation - Loss - Lossy medium - Nematic liquid crystals - Non local - Nonlocal media - Nonlocal spatial soliton - Numerical simulations - Optical solitons - Variational approach
Classification code:723.5 Computer Applications - 921.1 Algebra - 951 Materials Science
DOI:10.1016/j.optcom.2008.06.019
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082711350724
Title:Polarimeter system of stokes parameters based on Division-of-Amplitude
Authors:Cheng, Min-Xi (0); He, Zhen-Jiang (0); Huang, Zuo-Hua (0)
Corresponding author:Cheng, M.-X.
(chengmx@scnu.)
Corr. author affiliation:School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Source title:Guangdian Gongcheng/Opto-Electronic Engineering
Abbreviated source title:Guangdian Gongcheng
Volume:35
Issue:5
Issue date:May 2008
Publication year:2008
Pages:93-97
Language:Chinese
ISSN:1003501X
CODEN:GUGOEC
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences, Chengdu, Sichuan, 610209, China
Abstract:Polarized light could be described completely by Stokes Parameters. A Division-of-Amplitude Polarimeter (DOAP) system was designed, in which one quarter-wave plate was set between the lenses of Division-of-Amplitude, and then the light path was in same plane. Intensity of four light beams related to Stokes Parameters was tested by four detectors with the same performance. The system was calibrated by known polarization that combined polaroid with one quarter-wave plate. Through matrix calculation, the Stokes parameters were tested quickly and the polarization of light was work out. Experiment shows that the system is set up easily and adjusted conveniently. The deviations of four dimensions of Stokes parameters between testing value and theoretical value are less than 6%.
Number of references:10
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811568001
Title:Optical beams in nonlocal nonlinear media: A variational solution of the Laguerre-Gauss form
Authors:Dai, Ji-Hui (0); Guo, Qi (0)
Corresponding author:Dai, J.-H.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:8
Issue date:August 2008
Publication year:2008
Pages:5001-5006
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The 1+2D nonlocal nonlinear Schrodinger equation can be transformed to the variational approach in a cylindrical coordinate system, and is applied to a model describing the propagation of optical beam in strongly nonlocal nonlinear media. By solving variational problems with expanding media response functions and assuming reasonable ansatz, the solution of the Laguerre-Gauss form is obtained. The Laguerre-Gaussian beams will form solitons or be reduced to Gaussian beams under certain conditions.
Number of references:21
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211645274
Title:New circuit model for avalanche photodiodes to detect infrared single photon by transient process of transmission lines
Authors:Wang, Jin-Dong (0); Wu, Zu-Heng (0); Zhang, Bing (0); Wei, Zheng-Jun (0); Liao, Chang-Jun (0); Liu, Song-Hao (0)
Corresponding author:Wang, J.-D.
(jindongwqkd@)
Corr. author affiliation:Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:9
Issue date:September 2008
Publication year:2008
Pages:5620-5626
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:A new circuit model for using the avalanche photodiodes to detect infrared single photon is proposed, which combines the requirements of a single photon detector control circuit and features of the electric pulses generator by transient process of transmission lines. The simulation results are given for the new circuit model and the emphasis is laid on the analysis of the feasibility of the circuit model in using the gate mode scheme of the avalanche photodiodes to detect infrared single photon and the influence of each electrical component on the performance of the circuit model. Finally, optimal parameters of the electrical components and the gate-mode with the quenching circuit model are demonstrated.
Number of references:24
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711720405
Title:Propagation properties of self-similar pulses in Yb+3-doped fiber amplifiers
Authors:Li, Shu-Xian (1); Xu, Wen-Cheng (1); Feng, Jie (1); Liu, Song-Hao (1)
Author affiliation:(1) Lab. of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Li, S.-X.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:10
Issue date:October 2008
Publication year:2008
Pages:1937-1941
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:Self-similar pulse propagation properties in Yb+3-doped fiber amplifiers with the effects of higher-order dispersion and gain dispersion were studied. The effects of initial pulse energy, third-order dispersion and the doped ions dipole relaxation time on the pulse propagation quality were relatively expounded with the analytical and simulative methods. It is shown that with nonlinear area of parabolic pulses being enlarged, the center of chirp moves forward or backward, due to the difference of third-order dispersion coefficient. And the figure of pulses is distorted with the pulse peak delaying to one side and the center location excursing. Gain dispersion can be a filter, which can properly compress pulse-width. Results proved the possibility of the self-similar pulse existing in gain medium with a certain relaxation time.
Number of references:12
Main heading:Fiber amplifiers
Controlled terms:Dispersion (waves) - Electromagnetic dispersion - Fiber lasers - Nonlinear optics - Relaxation processes - Ternary systems - Ytterbium
Uncontrolled terms:Dipole relaxations - Gain dispersion - Gain dispersions - Gain mediums - Order dispersions - Parabolic pulses - Propagation properties - Pulse energies - Pulse propagations - Self-similar - Self-similar pulse - Third-order dispersion
Classification code:744.4 Solid State Lasers - 741.1.2 Fiber Optics - 741.1.1 Nonlinear Optics - 931.1 Mechanics - 711.1 Electromagnetic Waves in Different Media - 531.2 Metallography - 531.1 Metallurgy - 547.2 Rare Earth Metals
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082611336385
Title:Synthesis of a novel calix [4] arene derivative with 2-methylquinoline and study of it's spectrum character with Zn (II) and Cu (II)
Authors:Liu, Shi-Zhu (1); Tang, You-Wen (1)
Author affiliation:(1) College of Chemistry and Environment, South China Normal University, Guangzhou 510631, China
Corresponding author:Liu, S.-Z.
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:5
Issue date:May 2008
Publication year:2008
Pages:1118-1121
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:A novel calix [4] arene derivative (25, 27-two2-methylquinoline t-butylcalix [4] arene, MQBC) with the lower rim modified fluorescence groups was synthesized. IR spectra, elemental analysis, HNMR spectra and MS were used to determine its structure. Meanwhile, the spectra characters of MQBC and the fluorescent behaviors of the complex with zinc (II) and copper (II) were investigated, and the results showed that the lower rim oxygen atoms in calix [4] arenes may act as electrons donor to metal ions. Calix [4] arene was chosen as a basic skeleton of a photoresponsive ion carrier because its quinoline derivatives are known to emit fluorescence and absorb UV in the solution, and the information of the complex with metal ions will be known by spectra experiment. The UV absorbance became weak at the band of 226 nm but was enhanced at the band of 315 nm when it bound zinc ions, The complex constant (K) and binding ratio (x) were determined to be 2064 L·mol-1 and 1, respectively, by UV spectra experiment It is expected that MQBC will be applied to the detection of trace zinc ions. The fluorescence spectra experiment found that MQBC is has feeble fluorescence attributed to the intramolecular photoinduced electron transfer (PET) between oxygen atoms and methylquinoline groups. When MQBC was combined with zinc (II) and copper (II), it caused the inhibiting photoinduced electron transfer process between oxygen atoms and methylquinoline groups leading to the enhancement of fluorescence. In addition, the photoinduced electron mechanism was discussed and the influence of the concentration of zinc (II) and copper (II) on the fluorescence intensities was studied.
Number of references:12
Main heading:Derivatives
Controlled terms:Atoms - Chemical analysis - Copper - Fluorescence - Infrared spectroscopy - Metal ions - Nuclear magnetic resonance spectroscopy - Oxygen - Synthesis (chemical) - Zinc
Uncontrolled terms:Binding ratio - Calix [4] arene derivative - Complex constant - Electrons donor - Methylquinoline groups - Photoinduced electron transfer - Photoresponsive ion carrier - Quinoline - Rim oxygen atoms
Classification code:931.3 Atomic and Molecular Physics - 804 Chemical Products Generally - 802.2 Chemical Reactions - 941.4 Optical Variables Measurements - 801 Chemistry - 546.3 Zinc and Alloys - 544.1 Copper - 741.1 Light/Optics
Treatment:Applications (APP); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211646995
Title:Calculation and experiment of spectral sideband offset in ring cavity fiber laser by nonlinear polarization rotation
Authors:Feng, Jie (1); Xu, Wencheng (2); Ye, Hui (2); Liu, Weici (2); Luo, Zhichao (2); Song, Chuangxing (2); Liu, Songhao (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) Laboratory of Photonic Information Technology, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Feng, J.
(fengjie@scnu.)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:9
Issue date:September 2008
Publication year:2008
Pages:1333-1337
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The dynamic equations which describe the pulse nonlinear polarization rotation (NPR) of nonlinear birefringence in ring cavity fiber laser were given. The theoretical formulae of spectrum sideband offset which stems from the interference between the dispersion wave and the soliton wave are deduced in ring cavity fiber laser passively mode-locked by the nonlinear polarization rotation technique. Theoretical spectral sideband offsets are consistent with experimental results very well in the paper. And the maximal error is less than 4.1%, which explains the sideband offset in ring cavity fiber laser under passive mode-locking by NPR.
Number of references:18
Main heading:Fiber lasers
Controlled terms:Fibers - Laser mode locking - Lasers - Nonlinear equations - Polarization - Pulsed laser applications - Rotation
Uncontrolled terms:Nonlinear birefringence - Nonlinear polarization rotation - Ring cavity fiber laser - Spectral sideband offset
Classification code:931.1 Mechanics - 921.1 Algebra - 819.4 Fiber Products - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 744.9 Laser Applications - 744.4 Solid State Lasers - 744.1 Lasers, General - 741.1.2 Fiber Optics - 741.1 Light/Optics - 711.1 Electromagnetic Waves in Different Media - 701.1 Electricity: Basic Concepts and Phenomena - 601.1 Mechanical Devices
DOI:10.3788/CJL20083509.1333
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082911385270
Title:Fluorescence emission analysis of caspase-3 activation induced by Xiao-Ai-Ping (XAP) inside living human lung adenocarcinoma cells
Authors:Chen, Tong-Sheng (1); Wang, Xiao-Ping (2); Wang, Zhi-Ping (3); Wang, Long-Xiang (1); Wang, Hui-Ying (1); Xing, Da (1)
Author affiliation:(1) Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Anesthesiology, The First Affiliated Hospital, Ji'nan University, Guangzhou 510632, China; (3) Science and Technology Park Ltd., Guangzhou University of TCM, Guangzhou 510445, China
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:6
Issue date:June 2008
Publication year:2008
Pages:1326-1331
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The CCK-8 was used to measure the inhibition effect of Xiao-Ai-Ping (XAP), a traditional medicine, on the human lung adenocarcinoma (ASTC-a-1) cells viability. The ASTC-a-1 cells expressing stably with SCAT3, a fluorescence resonance energy transfer (FRET) plasmid based on the green fluorescent protein mutants (GFPs), was verified using confocal fluorescence scanning microscopy imaging, fluorescence emission spectra and FRET acceptor photobleaching techniques. The caspase-3 activation can be monitored by the fluorescence emission spectra of SCAT3 inside living cells. The cells expressing stably with SCAT3 were cultured with XAP for 96 hours, and the fluorescence emission spectra of the SCAT3 inside living cells were measured at the time of 0, 24, 72, and 96 hours, respectively. Experimental results showed that: (1) XAP inhibited obviously the proliferation of ASTC-a-1 cells and induced the cell death. The inhibition of XAP on the cells was dose-dependent; (2) the SCAT3 inside living cells was cleaved completely 72 hours after the XAP treatment, implying that a great deal of pro-caspase-3 was activated by XAP; (3) 24 hours after XAP treatment, the emission spectra of SCAT3 inside living cells cultured in DMEM without XAP for 48 and 72 hours did not change greatly, implying that XAP did not activate obviously caspase-3 within 24 hours.
Number of references:20
Main heading:Emission spectroscopy
Controlled terms:Activation analysis - Activation energy - Biological organs - Cell death - Cells - Energy storage - Energy transfer - Fluorescence - Health - Imaging techniques - Light emission - Luminescence - Photobleaching
Uncontrolled terms:Acceptor photobleaching - Caspase 3 - Caspase 3 activation - Confocal fluorescence scanning microscopy - Dose dependent - Emission spectrums - Fluorescence emission analysis (FEA) - Fluorescence emission spectrum - Fluorescence resonance energy transfer (FRETS) - Green Fluorescent Protein (GFP) - Human lung adenocarcinoma cells - Human lungs - Inhibition effects - Living cells
Classification code:801.4 Physical Chemistry - 801 Chemistry - 746 Imaging Techniques - 741.1 Light/Optics - 525.7 Energy Storage - 525.4 Energy Losses (industrial and residential) - 461.9 Biology - 461.6 Medicine and Pharmacology - 461.2 Biological Materials and Tissue Engineering
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084011607456
Title:The all-angle self-collimating phenomenon in photonic crystals with rectangular symmetry
Authors:Xu, Yi (1); Chen, Xiao-Jun (1); Lan, Sheng (1); Guo, Qi (1); Hu, Wei (1); Wu, Li-Jun (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Wu, L.-J.
(ljwu@scnu.)
Source title:Journal of Optics A: Pure and Applied Optics
Abbreviated source title:J Opt A Pure Appl Opt
Volume:10
Issue:8
Issue date:August 1, 2008
Publication year:2008
Article number:085201
Language:English
ISSN:14644258
E-ISSN:17413567
CODEN:JOAOF8
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:We propose a two-dimensional photonic crystal of rectangular symmetry with rather straight iso-frequency lines over the whole first Brillouin zone along the ΓX direction to realize all-angle self-collimation. By tracking the spatial evolution and transmission efficiency of the collimated beam along the propagating direction, it is found that the beam spreading and propagation loss are negligible for incident angles within ±85°. The self-collimating behaviors in the rectangular and square lattices are compared and the differences between them are investigated. As an application, a Y-shaped beam splitter with transmission efficiencies for both branches as high as 43.8% is constructed by combining two rotated rectangular structures. © 2008 IOP Publishing Ltd.
Number of references:14
Main heading:Crystal symmetry
Controlled terms:Crystal atomic structure - Crystallography - Photonic crystals - Photonics - Powders - Silicon on insulator technology - Two dimensional
Uncontrolled terms:Beam spreading - Collimated beams - First Brillouin zone - Incident angles - Photonic crystal - Propagation loss - Rectangular lattice - Rectangular symmetries - Self-collimation - Shaped beams - Spatial evolution - Square lattices - Transmission efficiencies - Two-dimensional photonic crystals
Classification code:933.1 Crystalline Solids - 931.3 Atomic and Molecular Physics - 741.3 Optical Devices and Systems - 933.1.1 Crystal Lattice - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 536 Powder Metallurgy - 723.5 Computer Applications
DOI:10.1088/1464-4258/10/8/085201
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083411475556
Title:Minority carrier concentration of strained Si1-xGex layers as function of Ge fraction and temperature
Authors:Zhao, Chuanzhen (1); Tang, Jiyu (1); Xiao, Haixia (2); Wen, Yuhua (1); Wu, Liangzhen (1); Kong, Yunting (1)
Author affiliation:(1) College of Physics and Telecommunication, South China Normal University, Guangzhou 510631, China; (2) Department of Physics, Zhaoqing University, Zhaoqing 526061, China
Corresponding author:Zhao, C.
(as3262001@.cn)
Source title:Guti Dianzixue Yanjiu Yu Jinzhan/Research and Progress of Solid State Electronics
Abbreviated source title:Guti Dianzixue Yanjiu Yu Jinzhan
Volume:28
Issue:1
Issue date:March 2008
Publication year:2008
Pages:8-11
Language:Chinese
ISSN:10003819
CODEN:GDYJE2
Document type:Journal article (JA)
Publisher:Research Progress of Solid State Electronics, P.O. Box 1601, Nanjing, 210016, China
Abstract:In this paper the minority carrier concentration is calculated analytically with the varying of the temperature T, Ge fraction x and doping concentration. It is found that for the given doping concentration, the minority carrier concentration increases more and more quickly with the increasing of Ge fraction x. For the given Ge fraction x, the minority carrier concentration increases more and more slowly with the increasing of doping concentration at 300 K. At low temperature, the hole concentration induced by ionized impurities from nondegeneracy to degeneracy is modified under consideration of the incomplete ionization of the impurities. It is found that for the given doping concentration, the minority carrier concentration increases more and more quickly with the increasing of Ge fraction x. For the given fraction x, the minority carrier concentration increases slowly for the light doping. For heavily doped SiGe layers, the minority carrier concentration increases more quickly.
Number of references:12
Main heading:Carrier concentration
Controlled terms:Bioactivity - Civil aviation - Concentration (process) - Germanium - Hole concentration - Silicon
Uncontrolled terms:Doping concentrations - Ge fraction - Heavily doping - Impurity concentration - Incomplete ionization - Ionized impurities - Low temperature - Low temperature characteristics - Minority carrier concentration - Minority carriers - Non-degeneracy - SiGe alloy - SiGe layers - Strained-Si
Classification code:431.1 Air Transportation, General - 461.6 Medicine and Pharmacology - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 701.1 Electricity: Basic Concepts and Phenomena - 802.3 Chemical Operations
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911244330
Title:Absorption and scattering characteristics of human benign prostatic hyperplasia tissue with Ti:Sapphire laser irradiation in vitro
Authors:Wei, Hua-Jiang (1); Xing, Da (1); He, Bo-Hua (2); Wu, Rong-Hai (3); Gu, Huai-Min (1); Wu, Guo-Yong (4); Chen, Xue-Mei (5)
Author affiliation:(1) Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Surgery, Guangdong College of Pharmacy, Guangzhou 510224, China; (3) Department of Urology, Central Hospital of Jiangmen, Jiangmen 529070, China; (4) Department of Surgery, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (5) Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
Corresponding author:Wei, H.-J.
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:1
Issue date:January 2008
Publication year:2008
Pages:10-13
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The optical properties and their differences of human benign prostatic hyperplasia (BPH) tissues removed using transurethral plasma kinetic resection of the prostate (PKRP) and transurethral vaporization of the prostate (TUVP) at 640, 660, 680, 700, 720, 740, 760, 780, 800, 820, 840, 860 and 880 nm of Ti: Sapphire laser were studied in vitro. The measurements were performed using a double-integrating-sphere setup, and the absorption and scattering properties were assessed using the inverse adding-doubling method. The results of measurement showed that the absorption coefficients and reduced scattering coefficients of BPH tissues removed using PKRP and TURP obviously decreased with the increase in the wavelength for thirteen different laser wavelengths. The absorption coefficient and reduced scattering coefficient of BPH tissues removed using PKRP at a certain laser wavelength were obviously smaller than that of BPH tissues removed using TUVP at the same laser wavelength. The maximum absorption coefficient and maximum reduced scattering coefficient of BPH tissues removed using PKRP and TURP were respectively (0.885 ± 0.022) and (0.955+0.024) mm-1, and (1.564 ± 0.039) and (1.658 ± 0.042) mm-1 at 640 nm, their differences were respectively 7.91% and 6.01%, and the minimum absorption coefficient and minimum reduced scattering coefficient of BPH tissues removed using PKRP and TURP were respectively (0.443 ± 0.011) and (0.455 ± 0.011) mm-1, and (1.117 ± 0.028) and (1.197 ± 0.030) mm-1 at 640 nm, their differences were respectively 2.71% and 9.13%. The maximum difference in the absorption coefficients of BPH tissues removed using PKRP and TURP is 8.95% at 660 nm, and the minimum difference is 1.75% at 860 nm. The maximum difference in the reduced scattering coefficients of BPH tissues removed using PKRP and TURP is 9.13% at 800 nm, and the minimum difference is 6.01% at 640 nm.
Number of references:22
Main heading:Tissue
Controlled terms:Absorption - Laser beam effects - Light scattering - Optical properties - Sapphire - Titanium - Vaporization - Wavelength
Uncontrolled terms:Absorption coefficients - Human benign prostatic hyperplasia tissues - Integrating sphere - Inverse adding-doubling method - Laser wavelength - Scattering coefficients - Ti:Sapphire laser - Transurethral vaporization of the prostate
Classification code:461.2 Biological Materials and Tissue Engineering - 482.2.1 Gems - 542.3 Titanium and Alloys - 741.1 Light/Optics - 744.8 Laser Beam Interactions - 931.2 Physical Properties of Gases, Liquids and Solids
Treatment:Applications (APP); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084111631409
Title:A non-invasive and rapid seed vigor biosensor based on quantitative measurement of superoxide generated by aleurone cell in intact seeds
Authors:Liu, Xuejun (1); Gao, Caiji (1); Xing, Da (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Biosensors and Bioelectronics
Abbreviated source title:Biosens. Bioelectron.
Volume:24
Issue:4
Issue date:December 1, 2008
Publication year:2008
Pages:756-761
Language:English
ISSN:09565663
CODEN:BBIOE4
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:Superoxide generated during the early imbibition is an excellent marker for evaluating seed vigor. In this paper, a new principle biosensor for non-invasive detection of seed vigor based on quantitative measurement of superoxide via selective probe 2-methyl-6-(p-methoxyphenyl)-3,7-dihydroimidazo [1,2α] pyrazin-3-one (MCLA)-mediated chemiluminescence (CL) was developed. The biosensor, which used a compact single-photon counting module (SPCM) to collect the CL signal, could evaluate seed vigor in vivo. Benefiting from the high CL efficiency of MCLA reacting with superoxide and high sensitivity of the SPCM technique, the trace superoxide generated by dry seeds under storage state can be detected to achieve rapid and non-invasive determination of the seed vigor. In comparison with the traditional methods for fast measuring seed vigor based on measurement of physiological and biochemical properties, our proposed technique has significant advantages such as low cost, simplicity, convenient operation and short time consuming. To demonstrate the utility of the system, it was applied to evaluate MCLA-mediated CL of three different plant species wheat (Ze Yu No. 2), maize (Tai Gu No. 1 and 2) and rice (Jing Dao No. 21) seeds with different degrees of aging. The experimental results suggested that there was an excellent positive correlation between the seed vigor assessment from quantitative TTC-test and the detection based on MCLA-mediated CL of superoxide measurement. The new principle of seed vigor measurement is a challenge and breakthrough to conventional method of seed vigor determination and may be a potential technique of the next generation seed vigor detection. © 2008 Elsevier B.V. All rights reserved.
Number of references:32
Main heading:Seed
Controlled terms:Agricultural products - Biosensors - Electronic equipment testing - Ketones - Oxygen - Signal transduction - Trace analysis
Uncontrolled terms:Biochemical properties - Biosensor - Chemiluminescence - Conventional methods - Dry seeds - High sensitivities - In-vivo - Low costs - Non-invasive - Non-invasive detection - Plant species - Positive correlations - Quantitative measurements - Rapidity - Seed vigor - Short time - Single-photon counting module - Superoxide
Classification code:821.4 Agricultural Products - 804.1 Organic Compounds - 804 Chemical Products Generally - 801.2 Biochemistry - 801 Chemistry - 715 Electronic Equipment, General Purpose and Industrial - 461.9 Biology
DOI:10.1016/j.bios.2008.06.040
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911243870
Title:Syntheses, characterization, and luminescence of two lanthanide complexes [Ln2(acetate)6(H2O)4]·4H2O (Ln=Tb(1), Sm(2))
Authors:YU, Qiongyan (1); ZHOU, Xiuxia (1); LIU, Maosheng (1); CHEN, Jianqiao (1); ZHOU, Zhengyuan (1); YIN, Xia (1); CAI, Yuepeng (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Corresponding author:CAI, Y.
(ypcai88@.cn)
Source title:Journal of Rare Earths
Abbreviated source title:J Rare Earth
Volume:26
Issue:2
Issue date:April 2008
Publication year:2008
Pages:178-184
Language:English
ISSN:10020721
CODEN:JREAE6
Document type:Journal article (JA)
Publisher:Chinese Rare Earth Society, 2 Xinjiekouwaidajie, Beijing, 100088, China
Abstract:Two dinuclear compounds [Ln2(acetate)6(H2O)4]·4H2O (Ln=Tb(1), Sm(2)) were obtained by the hydrothermal reaction of Ln2O3 with malonic acid at 150 °C. Both compounds were characterized by elemental analyses, infrared spectra, and single crystal X-ray diffraction. The results showed that complexes 1 and 2 were isomorphous and crystallize in triclinic space group P'1. The coordination geometry around Ln(III) ions in the complexes 1 and 2 was a distorted tricapped trigonal prism with a nine coordination. In the crystal, the molecular organization was further stabilized by well-defined weak hydrogen bonding interactions between the neutral dinuclear molecular units that led to the formation of a three-dimensional network. The fluorescence properties of the two complexes 1 and 2 in organic solvents were also studied. The results show that the ligand acetate favored energy transfer to the emitting energy level of Tb(III) in complex 1. Some factors that influence the fluorescent intensity were also discussed in the article. © 2008 The Chinese Society of Rare Earths.
Number of references:28
Main heading:Lanthanum compounds
Controlled terms:Crystal structure - Hydrogen bonds - Hydrothermal synthesis - Luminescence - Organic solvents - Rare earths - X ray crystallography
Uncontrolled terms:Coordination geometry - Dinuclear compounds - Malonic acid - Rare earth dinuclear complexes
Classification code:933.1.1 Crystal Lattice - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 803 Chemical Agents and Basic Industrial Chemicals - 802.2 Chemical Reactions - 801.4 Physical Chemistry - 741.1 Light/Optics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/S1002-0721(08)60061-7
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258823
Title:Photonic technology in quantum information challenges quantum limitation
Authors:Liu, Songhao (1); Wang, Jindong (1); Liao, Changjun (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510631, China
Corresponding author:Liu, S.
(liush@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:68270F
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Basic experiments for quantum information have demonstrated the important role that photons play in future practical quantum information system. Technical prospects of processing quantum information in quantum computing, quantum communication and quantum cryptography encourage researchers to develop advanced photonic devices with high precision. We recognized that the most essential is to develop component parts of every kind that can constitute a qualified quantum information system. By using these component parts with high precision, it is possible to decrease errors in a practical quantum information system. The errors come from interaction of quantum information with environment that appear as decoherence. In terms of the technical terminology, this kind of interaction is appeared in conventional characterization as loss of the devices that are responsible for the permutation between quantum information system and environment noise. Therefore we analyze several possible structures of the components and devices that should be considered in the design of the components and the devices for quantum information usage. The emitters should generate quantum eigen state that the quantum dot with specified shape is embedded in mode matched waveguide. The quantum bits should be encoded only by phase modulation without loss. The receiver should also be sensitive to the quantum state. Every step of the efforts challenges the quantum limitation and the technologies available.
Number of references:40
Main heading:Quantum computers
Controlled terms:Bit error rate - Eigenvalues and eigenfunctions - Information systems - Photonics - Quantum cryptography - Semiconductor quantum dots - Waveguides
Uncontrolled terms:Bose statistics - Quantum information - Quantum information systems - Quantum limitation
Classification code:903.2 Information Dissemination - 741.1 Light/Optics - 723.1 Computer Programming - 921.1 Algebra - 722 Computer Systems and Equipment - 714.3 Waveguides - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television
Treatment:Theoretical (THR)
DOI:10.1117/12.756908
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258822
Title:The study of single photon detector for quantum key distribution
Authors:Zhengjun, Wei (1); Jindong, Wang (1); Kaizhen, Li (1); Peng, Zhou (1); Changjun, Liao (1); Jianping, Guo (1); Songhao, Liu (1)
Author affiliation:(1) Lab of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Corresponding author:Zhengjun, W.
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:68270E
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:This paper introduces the design of a single photon detector based on the AT89C51 single chip microcontroller for quantum key distribution at telecommunication wavelengths. An avalanche photodiode (APD) is operated in Geiger mode and stabilized at temperature of 228K for translating the single photon signals into electrical pulses. The photon induced avalanche pulses are amplified and converted to digital data. The microcontroller discriminates the data, counting the number of photons, and then displays the photon number and the detection efficiency on a LCD display. The instrument can effectively support the study of quantum key distribution.
Number of references:6
Main heading:Avalanche photodiodes
Controlled terms:Liquid crystal displays - Microcontrollers - Network security - Quantum cryptography - Telecommunication networks - Wavelength
Uncontrolled terms:Quantum key distribution - Single chip microcontrollers - Single photon detectors - Telecommunication wavelengths
Classification code:711 Electromagnetic Waves - 714.1 Electron Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television - 722.2 Computer Peripheral Equipment - 723 Computer Software, Data Handling and Applications
Treatment:Theoretical (THR)
DOI:10.1117/12.756615
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811231827
Title:Effects of electroless indium on the electrochemical properties of zinc in alkaline solutions
Authors:Zhou, Hebing (1); Yang, Meizhu (1); Li, Weishan (1); Xu, Mengqing (2); Huang, Qiming (1); Hu, Shejun (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China; (2) South China University of Technology, Guangzhou 510641, China
Corresponding author:Zhou, H.
(zhbindium@)
Source title:Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title:Xiyou Jinshu Cailiao Yu Gongcheng
Volume:37
Issue:3
Issue date:March 2008
Publication year:2008
Pages:404-408
Language:Chinese
ISSN:1002185X
CODEN:XJCGEA
Document type:Journal article (JA)
Publisher:Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014, China
Abstract:The effects of electroless indium on the hydrogen evolution reaction and the anodic dissolution of zinc in alkaline solutions were investigated by inductively coupled plasma-atomic emission spectrometry (ICP), scanning electron microscopy (SEM), linear potential sweep (LPS), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The results show that the indium plated on zinc can inhibit effectively the couple reactions of zinc corrosion e.g. hydrogen evolution and anodic dissolution of zinc. The indium can also broaden the potential region for the active dissolution of zinc and postpone the passivation of zinc. The indium with proper thickness favors the reduction of zinc ions.
Number of references:12
Main heading:Indium plating
Controlled terms:Cyclic voltammetry - Electrochemical impedance spectroscopy - Electrochemical properties - Electroless plating - Inductively coupled plasma - Scanning electron microscopy - Zinc
Uncontrolled terms:Alkaline solution - Electroless indium
Classification code:539.3 Metal Plating - 546.3 Zinc and Alloys - 801 Chemistry - 931.2 Physical Properties of Gases, Liquids and Solids
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011254133
Title:Multiplicative perturbation bounds for spectral and singular value decompositions
Authors:Li, Wen (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, W.
(ma.wenli@.cn)
Source title:Journal of Computational and Applied Mathematics
Abbreviated source title:J. Comput. Appl. Math.
Volume:217
Issue:1
Issue date:July 15, 2008
Publication year:2008
Pages:243-251
Language:English
ISSN:03770427
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Let H be a Hermitian matrix, and over(H, ˜) = D* HD be its perturbed matrix. In this paper, the multiplicative perturbations for both spectral decompositions and singular value decompositions are studied and some new perturbation bounds for these decompositions are presented. Our results improve some existing bounds. © 2007 Elsevier B.V. All rights reserved.
Number of references:10
Main heading:Singular value decomposition
Controlled terms:Perturbation techniques - Spectrum analysis
Uncontrolled terms:Perturbation bound - Spectral decomposition
Classification code:921 Mathematics
Treatment:Theoretical (THR)
DOI:10.1016/j.cam.2007.06.032
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080911123171
Title:Lower bounds on several versions of signed domination number
Authors:Chen, Weidong (1); Song, Enmin (2)
Author affiliation:(1) Department of Computer Science, South China Normal University, Guangzhou, 510631, China; (2) Huazhong University of Science and Technology, Wuhan, 430074, China
Corresponding author:Chen, W.
(chenwd2007@)
Source title:Discrete Mathematics
Abbreviated source title:Discrete Math
Volume:308
Issue:10
Issue date:May 28, 2008
Publication year:2008
Pages:1837-1846
Language:English
ISSN:0012365X
CODEN:DSMHA4
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Three numerical invariants of graphs concerning domination, which are named the signed domination number γs, the k-subdomination number γk s and the signed total domination number γst, are studied in this paper. For any graph, some lower bounds on γs, γk s and γst are presented, some of which generalize several known lower bounds on γs, γk s and γst, while others are considered as new. It is also shown that these bounds are sharp. © 2007 Elsevier B.V. All rights reserved.
Number of references:17
Main heading:Number theory
Controlled terms:Graph theory - Numerical methods
Uncontrolled terms:k-Subdomination number - Signed domination number - Signed total domination number
Classification code:921 Mathematics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 921.6 Numerical Methods
Treatment:Theoretical (THR)
DOI:10.1016/j.disc.2006.09.050
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111411098
Title:Potential energy surfaces for all-trans P5H6 + and P5Me6+ may be less complicated than anticipated
Authors:Li, Qian-Shu (1); Pu, Zhifeng (2); Xie, Yaoming (3); Schleyer, Paul Von Rague (3); Schaefer, Henry F. (3)
Author affiliation:(1) Center for Computational Quantum Chemistry, South China Normal University, Guangzhou 510631, China; (2) School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China; (3) Center for Computational Chemistry, University of Georgia, Athens, GA 30602, United States
Corresponding author:Li, Q.-S.
(qsli@scnu.)
Source title:Journal of the American Chemical Society
Abbreviated source title:J. Am. Chem. Soc.
Volume:130
Issue:29
Issue date:July 23, 2008
Publication year:2008
Pages:9380-9385
Language:English
ISSN:00027863
CODEN:JACSAT
Document type:Journal article (JA)
Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States
Abstract:Burford and co-workers recently (2007) investigated the synthesis, structure, and pseudorotation of a family of cyclotetraphosphinophosphonium ions comprehensively. We now report theoretical computations through the CCSD(T) level to study the conformations of the parent model rings, P5H 6+ and P5Me6+. The all-trans conformations on the full pseudorotational cycle for the cyclotetraphosphinophosphonium cation (P5H6+) and for its methyl-substituted derivative (P5Me6 +) were located systematically on their potential energy surfaces. The potential energy for the pseudorotational circuit of P5H 6+ is smooth and monotonic with only one minimum ( 3T4) and one maximum (4T3), but the analogous P5Me6+ circuit has two minima. The P5H6+ and P5Me6 + potential surfaces appear to be qualitatively very different from that for the well investigated tetrahydrofuran. Since the 3T 4 form of P5H6+ avoids unfavorable eclipsing PH-PH and lone pair-lone pair interactions, it is the global minimum among all possible P5H6+ configurations and conformations. © 2008 American Chemical Society.
Number of references:35
Main heading:Potential energy
Controlled terms:Potential energy surfaces - Quantum chemistry
Uncontrolled terms:CCSD(T) - Energy surfaces - Pseudorotation
Classification code:801.4 Physical Chemistry - 922.2 Mathematical Statistics - 931.1 Mechanics
DOI:10.1021/ja800177p
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811370327
Title:Properties of TiAlCrN coatings prepared by vacuum cathodic arc ion plating
Authors:RU, Qiang (1); HU, Shejun (1); HUANG, Nacan (2); ZHAO, Lingzhi (2); QIU, Xiuli (3); HU, Xianqi (3)
Author affiliation:(1) School of Physics and Communication Engineering, South China Normal University, Guangzhou, 510006, China; (2) Faculties of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China; (3) Shenzhen Goldenhouse Vacuum Technology Co., Ltd., Shenzhen, 518053, China
Corresponding author:RU, Q.
(rq7702@)
Source title:Rare Metals
Abbreviated source title:Rare Met
Volume:27
Issue:3
Issue date:June 2008
Publication year:2008
Pages:251-256
Language:English
ISSN:10010521
CODEN:RARME8
Document type:Journal article (JA)
Publisher:Nonferrous Metals Society of China, B12 Fuxing Road, Beijing, 100814, China
Abstract:TiAlCrN coatings were deposited by means of vacuum cathodic arc ion plating technique on TC11 (Ti-6.5Al-3.5Mo-1.5Zr-0.3Si) titanium alloy substrates. The composition, phase structure, mechanical performance, and oxidation-resistance of the nitride coatings were investigated by scanning electron microscopy (SEM), atomic force microscope (AFM), X-ray diffraction (XRD), auger electron spectroscopy (AES), and X-ray photoelectron microscopy (XPS). A new process for preparing protective coatings of the titanium alloy is successfully acquired. The experimental results indicate that the added element chromium in the TiAlN coatings make a contribution to form the (220) preferred direction. The phases of the coatings are composed of (Ti, Al) N and (Ti, Cr)N. After 700°C and 800°C oxidation, AES analysis shows that the diffusion distribution of the TiAlCrN coatings emerges a step shape. From the outside to the inner, the concentrations of O, Al, and Cr reduce, but those of Ti and N increase. The Al-rich oxide is formed on the surface of the coatings, and the mixed structure of Ti-rich and Cr-rich oxides is formed in the internal layer. The oxidation resistance of the TiAlCrN coatings is excellent at the range of 700 to 800°C. Adhesion wear is the dominant mechanical characteristic for the titanium alloy at room temperature, and the protective coatings with high hardness can improve the mechanical properties of the titanium alloy. The wear resistance of the TC11 alloy is considerably improved by the TiAlCrN coatings. © 2008 The Nonferrous Metals Society of China.
Number of references:8
Main heading:Titanium alloys
Controlled terms:Alloys - Aluminum - Atomic force microscopy - Atomic spectroscopy - Auger electron spectroscopy - Cavity resonators - Chemical oxygen demand - Chromate coatings - Chromium - Coatings - Copper plating - Crystal atomic structure - Diffusion coatings - Extreme ultraviolet lithography - Health - Inorganic coatings - Ion implantation - Mechanical properties - Metals - Molybdenum - Nanostructured materials - Nonferrous metals - Oxidation - Photoelectron spectroscopy - Plating - Protective coatings - Structure (composition) - Titanium - Titanium plating - Vacuum - Vacuum deposited coatings - Wear resistance - X ray analysis - X ray diffraction analysis - X ray photoelectron spectroscopy - Zirconium
Uncontrolled terms:(1 1 0) surface - (PL) properties - adhesion wear - AES analysis - Alloy substrates - Atomic Force Microscope (AFM) - Auger electron spectroscopy (AES) - Electron microscopy (TEM and SEM) - Experimental results - high hardness - Internal layers - Mechanical characteristics - mechanical performances - Mixed structure - New processes - nitride coatings - Oxidation resistances - Room-temperature (RT) - Ti Al N coatings - TiAlCrN coatings - Vacuum cathodic arc - X ray diffraction (XRD) - X ray photoelectron Microscopy
Classification code:951 Materials Science - 712.1 Semiconducting Materials - 714.1 Electron Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 801 Chemistry - 802.2 Chemical Reactions - 813.2 Coating Materials - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 633 Vacuum Technology - 421 Strength of Building Materials; Mechanical Properties - 452.2 Sewage Treatment - 461.6 Medicine and Pharmacology - 531 Metallurgy and Metallography - 531.1 Metallurgy - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 539.2.2 Protecting Materials - 541.1 Aluminum - 542.3 Titanium and Alloys - 543.1 Chromium and Alloys - 543.3 Molybdenum and Alloys - 539.3 Metal Plating
DOI:10.1016/S1001-0521(08)60124-2
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084411666627
Title:Clustering-based initialization for non-negative matrix factorization
Authors:Xue, Yun (1); Tong, Chong Sze (2); Chen, Ying (3); Chen, Wen-Sheng (4)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, Guangdong 510631, China; (2) Department of Mathematics, Hong Kong Baptist University, Hong Kong, Hong Kong; (3) School of Communication and Journal, South China University of Technology, Guangzhou, Guangdong 510006, China; (4) College of Mathematics and Computational Science, Shenzhen University, Shenzhen, Guangdong 518060, China
Corresponding author:Xue, Y.
(xueyun@scnu.)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:205
Issue:2
Issue date:November 15, 2008
Publication year:2008
Pages:525-536
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:Non-negative matrix factorization (NMF) is an unsupervised learning algorithm that can extract parts from visual data. The goal of this technique is to find intuitive basis such that training examples can be faithfully reconstructed using linear combination of basis images which are restricted to non-negative values. Thus, NMF basis images can be understood as localized features that correspond better with intuitive notions of parts of images. However, there has been few systematic study to explore various methods for initialization of NMF algorithm, which is crucial for the performance of NMF algorithm in data analysis. In this paper, we discuss a structured NMF initialization scheme based on the clustering method. Comparing with the random initialization in common use, our method achieved faster convergence while maintaining the data structure and also obtained good result for the face recognition task. Furthermore, we also proposed to use a normalized AIC incorporated with our NMF initialization for rank selection of traditional NMF at the cost of much less computational load while obtaining a good performance in face recognition. © 2008 Elsevier Inc. All rights reserved.
Number of references:32
Main heading:Face recognition
Controlled terms:Blind source separation - Boolean functions - Cluster analysis - Convergence of numerical methods - Data structures - Factorization - File organization - Flow of solids - Image enhancement - Learning algorithms - Learning systems - Light measurement - Matrix algebra - Statistical methods
Uncontrolled terms:Clustering - Clustering methods - Computational loads - Data analysis - Faster convergences - Initialization - K-means clustering - Linear combinations - Localized features - Negative values - Nmf algorithms - Non-negative matrix factorization - Non-negative Matrix factorizations - Rank selection - Systematic studies - Training examples - Unsupervised learning algorithms - Visual datum
Classification code:741 Light, Optics and Optical Devices - 741.1 Light/Optics - 903.3 Information Retrieval and Use - 921 Mathematics - 941.4 Optical Variables Measurements - 921.1 Algebra - 922 Statistical Methods - 922.2 Mathematical Statistics - 931.1 Mechanics - 921.6 Numerical Methods - 731.5 Robotics - 723.5 Computer Applications - 461.4 Ergonomics and Human Factors Engineering - 716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 723.3 Database Systems - 723.4 Artificial Intelligence
DOI:10.1016/j.amc.2008.05.106
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811357458
Title:Mobility of strongly nonlocal solitons in optical lattices
Authors:Dai, Zhiping (1); Wang, Yuqing (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:77
Issue:6
Issue date:June 25, 2008
Publication year:2008
Article number:063834
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We address the impact of imprinted optical lattices on the mobility of a strongly nonlocal spatial optical soliton. With the aid of the Ehrenfest theorem in quantum mechanics, we obtain an equation of motion for the soliton center, and find its analytical solution. Comparison with numerical simulations shows that our analytical solution can describe the motion of the soliton center very well when the optical lattice period is much larger than the soliton width. It is found that there exists a critical angle that is a function of the optical lattice parameters. When its incident angle is smaller than the critical angle, the soliton is trapped within the waveguide induced by the optical lattices. Above the critical angle, the soliton leaves the central waveguide and propagates along its original direction traveling across the optical lattices. A way to control the soliton mobility is discussed based on the finding. © 2008 The American Physical Society.
Number of references:28
Main heading:Solitons
Controlled terms:Computer simulation - Crystal lattices - Equations of motion - Function evaluation - Optical materials - Quantum theory - Waveguides
Uncontrolled terms:(Hi-Bi) waveguide - American Physical Society (APS) - Analytical solutions - Critical angles - Ehrenfest theorem - Equation of motion - Incident angles - Non local - Numerical simulations - Optical lattices - Optical lattices (OL) - Quantum mechanics (QM) - soliton mobility - Spatial optical solitons
Classification code:931.4 Quantum Theory; Quantum Mechanics - 921.6 Numerical Methods - 921.2 Calculus - 933.1.1 Crystal Lattice - 921.1 Algebra - 723.5 Computer Applications - 714.3 Waveguides - 741.3 Optical Devices and Systems
DOI:10.1103/PhysRevA.77.063834
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011776917
Title:Quasi-distributed fiber Bragg grating sensor using the interrogation of arrayed waveguide grating
Authors:Huang, Jingtang (1); Huang, Xuguang (1); Zhao, Huawei (1)
Author affiliation:(1) Guangdong Provincial University Key Laboratory, South China Normal University, Guangzhou 510006, China; (2) School of Information and Photoelectronic Science and Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Huang, J.
(hjt1214@)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:28
Issue:11
Issue date:November 2008
Publication year:2008
Pages:2067-2071
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:A quasi-distributed fiber Bragg grating (FBG) sensor based on arrayed waveguide grating (AWG) is researched in theory and experiment. This sensor system has the advantages of easy operation, high response speed, low cost and high resolution. Its interrogating technique is based on the double-channel intensity-demodulating and the demultiplexing of an arrayed waveguide grating. The experimental result shows that the wavelength and temperature interrogation of the system have high linearity for the wide bandwidth of FBG, and the wavelength and temperature measurement accuracy reaches 2 pm and 0.2°C under the effects of system stability and FBG crosstalk.
Number of references:16
Main heading:Fiber optic sensors
Controlled terms:Arrayed waveguide gratings - Demodulation - Demultiplexing - Fiber Bragg gratings - Fiber optic components - Fibers - Optical waveguides - Sensors - System stability - Temperature measurement - Waveguides
Uncontrolled terms:Arrayed waveguide grating - Arrayed waveguides - Fiber bragg grating sensors - High linearities - High resolutions - High response speeds - Intensity demodulation - Low costs - Sensor systems - Wide bandwidths
Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 801 Chemistry - 961 Systems Science - 812 Ceramics, Refractories and Glass - 819.4 Fiber Products - 944.6 Temperature Measurements - 817 Plastics and Other Polymers: Products and Applications - 732.2 Control Instrumentation - 731.4 System Stability - 713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers - 714.3 Waveguides - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 717.2 Optical Communication Equipment - 718 Telephone Systems and Related Technologies; Line Communications
DOI:10.3788/AOS20082811.2067
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085211817382
Title:Relationships between urban heat island intensity and land use/cover factors based on landsat ETM+ in urban agglomeration of Guangdong, China
Authors:Zhang, Jinqu (1); Wang, Yunpeng (2)
Author affiliation:(1) Computer School, South China Normal University, Guangzhou, 510631, China; (2) State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
Corresponding author:Zhang, J.
Source title:2008 International Workshop on Earth Observation and Remote Sensing Applications, EORSA
Abbreviated source title:Int. Workshop Earth Obs. Remote Sens. Appl., EORSA
Monograph title:2008 International Workshop on Earth Observation and Remote Sensing Applications, EORSA
Issue date:2008
Publication year:2008
Article number:4620344
Language:English
Document type:Conference article (CA)
Conference name:2008 International Workshop on Earth Observation and Remote Sensing Applications, EORSA
Conference date:June 30,2008 - July 02,2008
Conference location:Beijing, China
Conference code:74803
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Ten cities with different urban sizes located in the Pearl River Delta, Guangdong Province, China were selected to study the relationships between surface urban heat island (S-UHI) intensity and land use/cover factors like urban size, development area, water proportion and mean NDVI, etc. All the cities are almost at the same latitude, show similar climate and have the same solar radiation, the influence of which shall be eliminated during our computation and comparative study. A variance-segmenting method was proposed to compute the S-UHI intensity for each city from the retrieved land surface temperature (LST). Factors like urban size, development area and water proportion were extracted directly from the classification images of the same ETM+ data. The urban mean NDVI value was used to quantify the urban vegetation abundance. Regression and correlation analyses were performed to study the relationships between the S-UHI intensity and these land use/cover factors, and the results show that S-UHI intensity is highly correlated to urban size (r=0.83) and development area (r=0.74). It was also proved that negative correlations existed between S-UHI intensity and urban mean NDVI (r=-0.62), and water proportion (r=-0.54). Linear and logarithm functions between S-UHI intensity and land use/cover factors were established respectively. © 2008 IEEE.
Number of references:23
Main heading:Landforms
Controlled terms:Agglomeration - Atmospheric temperature - Extraction - Heat flux - Image processing - Observatories - Remote sensing - Sun - Technical presentations - Vegetation
Uncontrolled terms:Classification images - Comparative studies - Correlation analyses - Guangdong provinces - Land surface temperatures - Land use/cover - Landsats - Logarithm functions - Negative correlations - Pearl river deltas - Urban heat islands - Urban vegetation abundances
Classification code:657.2 Extraterrestrial Physics and Stellar Phenomena - 723.2 Data Processing and Image Processing - 731.1 Control Systems - 903.2 Information Dissemination - 741 Light, Optics and Optical Devices - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 901.2 Education - 802.3 Chemical Operations - 657 Space Physics - 641.2 Heat Transfer - 402.1 Industrial and Agricultural Buildings - 443 Meteorology - 443.1 Atmospheric Properties - 461.9 Biology - 481.1 Geology - 525.1 Energy Resources and Renewable Energy Issues
DOI:10.1109/EORSA.2008.4620344
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080311025862
Title:The influence of thermal annealing to the characteristics of AlGaInP/GaInP multiple quantum wells light-emitting diode wafers
Authors:Li, Shuti (1); Fan, Guanghan (1); Sun, Huiqing (1); Zheng, Shuwen (1)
Author affiliation:(1) Institute of Opto-electronic Materials and Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, S.
(lishuti@scnu.)
Source title:Microelectronics Journal
Abbreviated source title:Microelectron J
Volume:39
Issue:1
Issue date:January 2008
Publication year:2008
Pages:70-73
Language:English
ISSN:00262692
CODEN:MICEB9
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:The influence of thermal annealing to the characteristics of AlGaInP/GaInP multiple quantum wells (MQWs) light-emitting diode wafers was studied by means of electrochemical capacitance-voltage (ECV) and photoluminescence (PL). Compared with the sample unannealed, the hole carrier concentration of p-GaP layer increased from 5.5×1018 to 6.5×1018 cm-3, and the hole carrier concentration of p-AlGaInP layer increased from 6.0×1017 to 1.1×1018 cm-3, after wafer was annealed at 460 °C for 15 min in nitrogen. The hole carrier concentrations of p-GaP layers and p-AlGaInP layers did not obviously change when the annealing temperature varied from 460 to 700 °C. However, after the sample was annealed under 780 °C for 15 min, the hole carrier concentration of p-GaP layer and p-AlGaInP layer decreased to 8×1017 and 1.7×1017 cm-3, respectively. At the same time, the diffusion of Mg atoms was observed. © 2007 Elsevier Ltd. All rights reserved.
Number of references:11
Main heading:Semiconducting gallium compounds
Controlled terms:Annealing - Epitaxial growth - Hole concentration - Light emitting diodes - Semiconductor quantum wells - Thin films
Uncontrolled terms:Electrochemical measurements - Hole carrier concentration - Mg atoms - P AlGaInP layers
Classification code:537.1 Heat Treatment Processes - 701.1 Electricity: Basic Concepts and Phenomena - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 802.3 Chemical Operations - 933.1.2 Crystal Growth
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.mejo.2007.10.013
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080411054180
Title:Oscillation of second order damped elliptic differential equations
Authors:Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xztxhyyj@pub.guangzhou.)
Source title:Mathematical and Computer Modelling
Abbreviated source title:Math. Comput. Model.
Volume:47
Issue:3-4
Issue date:February 2008
Publication year:2008
Pages:341-351
Language:English
ISSN:08957177
CODEN:MCMOEG
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:We establish some new oscillation theorems for the second order damped elliptic differential equation underover(∑, i, j = 1, N) Di [ai j (x) Dj y] + underover(∑, i = 1, N) bi (x) Di y + C (x, y) = 0 . Our results are extensions of those for second order ordinary differential equations obtained by Sun [Y.G. Sun, New Kamanev-type oscillation criteria of second order nonlinear differential euqations with damping, J. Math. Anal. Appl. 291 (2004) 341-351]. © 2007 Elsevier Ltd. All rights reserved.
Number of references:21
Main heading:Ordinary differential equations
Controlled terms:Mathematical transformations - Nonlinear equations - Riccati equations - Theorem proving
Uncontrolled terms:Kamenev type criteria - Riccati transformations - Second order elliptic differential equations
Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 921.1 Algebra - 921.2 Calculus - 921.3 Mathematical Transformations
Treatment:Theoretical (THR)
DOI:10.1016/j.mcm.2007.04.009
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811562891
Title:Designing a coupler for the intersatellite optical communication system
Authors:Liu, Hongzhan (1); Huang, Xuguang (1); Liu, Liren (2); Hu, Yanzhi (2)
Author affiliation:(1) Laboratory of Potonic Information Technology, The South China Normal University, Guangzhou, 510006, China; (2) Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, P.O. Box 800-211, Shanghai, 201800, China
Corresponding author:Liu, H.
(lhzhan@.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:119
Issue:13
Issue date:October 2008
Publication year:2008
Pages:608-611
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Urban und Fischer Verlag Jena, P.O. Box 100537, Jena, 07705, Germany
Abstract:Coupling a single-mode laser diode with 200 mW to a single-mode fiber (SMF) through an orthonormal aspherical cylindrical lens and a GRIN lens for the intersatellite optical communication system is proposed and demonstrated. We experimentally studied how the coupling efficiency changes with the SMF's position displacement and axial angle variation, and obtained 80 mW output power at the end of the SMF, which shows that the coupling units have satisfied the designed request. © 2007 Elsevier GmbH. All rights reserved.
Number of references:4
Main heading:Optical fiber coupling
Controlled terms:Communication - Communication systems - Computer networks - Laser modes - Lenses - Optical instruments - Photonics
Uncontrolled terms:Intersatellite optical communication - Optical coupling - Semiconductor laser diodes - Single-mode fiber
Classification code:744.1 Lasers, General - 744 Lasers - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 741.1 Light/Optics - 941.3 Optical Instruments - 723 Computer Software, Data Handling and Applications - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 712 Electronic and Thermionic Materials - 722 Computer Systems and Equipment
DOI:10.1016/j.ijleo.2007.03.006
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111409320
Title:American put option with regime-switching volatility (finite time horizon) - Variational inequality approach
Authors:Yi, Fahuai (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China
Corresponding author:Yi, F.
(fhyi@scnu.)
Source title:Mathematical Methods in the Applied Sciences
Abbreviated source title:Math Methods Appl Sci
Volume:31
Issue:12
Issue date:August 2008
Publication year:2008
Pages:1461-1477
Language:English
ISSN:01704214
E-ISSN:10991476
CODEN:MMSCDB
Document type:Journal article (JA)
Publisher:John Wiley and Sons Ltd, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom
Abstract:We study the fair price of American put option with regime-switching volatility. Assuming that volatility σ(t) takes two different values σ1 and σ2, applying Δ hedging technique we obtain a system of evolutionary variational inequalities, which possesses two free boundaries (optimal exercise boundaries). The following are the main results of this paper. 1. Two free boundaries are monotonic and infinitely differentiable. 2. The optimal exercise boundary of American put option with regime-switching volatility in the bearish (or bullish) market is smaller (or higher) than the one of standard American put option. And the price of American put option with regime-switching volatility in the bearish (or bullish) market is higher (or smaller) than the one of standard American put option. 3. The solution of problem (1) is unique. These results are original in the option pricing with regime-switching volatility, the proof is technical. Copyright © 2008 John Wiley & Sons, Ltd.
Number of references:14
Main heading:Variational techniques
Controlled terms:Industrial economics - Resource valuation
Uncontrolled terms:American put option - Finite time horizons - Regime-switching - Variational inequalities
Classification code:501.1 Exploration and Prospecting Methods - 911.2 Industrial Economics - 921.2 Calculus
DOI:10.1002/mma.984
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084511682125
Title:The characterization and properties of InN grown by MOCVD
Authors:Dong, S.-G. (1); Fan, G.-H. (1); Shuai, Y.-C. (1)
Author affiliation:(1) Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou 510631, China; (2) Department of Optoelectronic and Physics, Foshan University, Foshan 528000, China
Corresponding author:Dong, S.-G.
Source title:EPJ Applied Physics
Abbreviated source title:EPJ Appl Phys
Volume:44
Issue:2
Issue date:November 2008
Publication year:2008
Pages:131-136
Language:English
ISSN:12860042
E-ISSN:12860050
CODEN:EPAPFV
Document type:Journal article (JA)
Publisher:EDP Sciences, 17 Avenue du Hoggar - BP 112, Les Ulis Cedex A, F-91944, France
Abstract:The characterization and properties of InN thin films grown on GaN templates by metalorganic chemical vapor deposition (MOCVD) at various growth temperatures were investigated. Their carrier concentrations ranged from 4.610 to 410 cmand mobility valued from 150 to 1300 cm2 / V s. The variation of the growth temperature brought about different growth rates. It was also found that growth rate is increased with the increasing growth temperature and reached 470 nm/h for the InN epitaxial layer grown at 675 °C. The surface roughness of InN layers was obtained from AFM measurement. The structural quality of the InN layers was determined by TEM. The surface and cross-sectional morphologies of these films are evaluated by SEM. The layer crystalline quality was investigated by means of X-ray diffraction in the rocking curves. Photoluminescence measurements performed at 7 K and room temperature gave emission peaks at around 0.7 eV. © 2008 EDP Sciences.
Number of references:15
Main heading:Epitaxial growth
Controlled terms:Carrier mobility - Chemical properties - Epitaxial layers - Gallium nitride - Growth temperature - Indium compounds - Metallorganic chemical vapor deposition - Metallorganic vapor phase epitaxy - Molecular beam epitaxy - Semiconducting gallium - Surface roughness - Thick films - X ray diffraction
Uncontrolled terms:Afm measurements - Crystalline qualities - Emission peaks - GaN templates - InN layers - InN thin films - Metalorganic chemical vapor depositions - Morpho-logies - Photoluminescence measurements - Rocking curves - Room temperatures - Structural qualities - X-ray diffractions
Classification code:933.1.2 Crystal Growth - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 813 Coatings and Finishes - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 933 Solid State Physics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 802.3 Chemical Operations - 423 Non Mechanical Properties and Tests of Building Materials - 531.2 Metallography - 712.1 Semiconducting Materials - 802.2 Chemical Reactions - 712.1.1 Single Element Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 801 Chemistry - 712.1.2 Compound Semiconducting Materials
DOI:10.1051/epjap:2008158
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811358260
Title:On the M/G/1 queueing system with multiclass customers and fixed feedback
Authors:ZHANG, Qi-zhi (1)
Author affiliation:(1) School of Computer, South China Normal University, Guangzhou, 510631, China
Corresponding author:ZHANG, Q.-z.
(Qizhi163@)
Source title:Journal of China Universities of Posts and Telecommunications
Abbreviated source title:J. China Univ. Post Telecom.
Volume:15
Issue:2
Issue date:June 2008
Publication year:2008
Pages:114-121
Language:English
ISSN:10058885
CODEN:JCUPCO
Document type:Journal article (JA)
Publisher:Editorial Deparment, P.O.Box 231, 10 Xi Tucheng Road, Beijing, 100876, China
Abstract:The M/G/1 queueing system with multiclass customer arrivals, fixed feedback, and first come first served policy is considered, where different classes of customers have different arrival rates, service-time distributions, and feedback numbers. The joint probability generation function of queue size of each class and the Laplace-Stieltjes transform of the total sojourn time of a customer in each class are presented, which extended the results obtained by Choi B D. The mean queue size of each class and mean total sojourn time of a customer in each class are obtained with this result. The results can be used in computer and communication networks for their performance analysis. © 2008 The Journal of China Universities of Posts and Telecommunications.
Number of references:16
Main heading:Customer satisfaction
Controlled terms:Probability distributions - Queueing networks - Queueing theory - Risk assessment - Sales
Uncontrolled terms:(R ,s ,S) policy - (SPM) classes - arrival rates - Communication networks - Customer arrivals - First come first served (FCFS) - joint probability - Laplace-Stieltjes transform - M/G/1 queueing system - Multi class - performance analyses - queue sizes - Sojourn time - time distributions
Classification code:723 Computer Software, Data Handling and Applications - 911.4 Marketing - 912 Industrial Engineering and Management - 914.1 Accidents and Accident Prevention - 922.1 Probability Theory
DOI:10.1016/S1005-8885(08)60094-1
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811234721
Title:Photoacoustic imaging using an ultrasonic Fresnel zone plate transducer
Authors:Wang, Hui (1); Xing, Da (1); Xiang, Liangzhong (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Journal of Physics D: Applied Physics
Abbreviated source title:J Phys D
Volume:41
Issue:9
Issue date:May 7, 2008
Publication year:2008
Article number:095111
Language:English
ISSN:00223727
E-ISSN:13616463
CODEN:JPAPBE
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:A photoacoustic (PA) imaging system based on an ultrasonic Fresnel zone plate (FZP) transducer is developed for the purpose of imaging biological tissue. This FZP transducer has a two-zone negative zone plate piezoelectric material pattern, and an optical fibre is integrated with the transducer on the symmetric axis of the zone plates to deliver laser pulses to the sample. The focal characteristic of the FZP transducer is analysed by theoretical prediction and experimental measurement, and the measured results are in good agreement with the predicted results. The limited-field back-projection deconvolution algorithm combined with the coherence-factor weighting technique is used to reconstruct the optical absorption distribution. The experiments were performed with phantoms and the blood vessels of chicken embryo chorioallantoic membrane. The results demonstrate that PA imaging using the FZP transducer has the ability to image biological tissue and has potential application in monitoring neovascularization in tumour angiogenesis. © 2008 IOP Publishing Ltd.
Number of references:25
Main heading:Imaging systems
Controlled terms:Algorithms - Photoacoustic effect - Tissue culture - Ultrasonic transducers
Uncontrolled terms:Photoacoustic imaging - Ultrasonic Fresnel zone plate transducer
Classification code:461.2 Biological Materials and Tissue Engineering - 723 Computer Software, Data Handling and Applications - 741.1 Light/Optics - 746 Imaging Techniques - 751.1 Acoustic Waves - 753.2 Ultrasonic Devices
Treatment:Theoretical (THR)
DOI:10.1088/0022-3727/41/9/095111
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084011616375
Title:GIS service sharing system based on agent
Authors:Chen, Hongying (1)
Author affiliation:(1) Institute of Computer science, South China Normal University, GuangZhou 510631, China
Corresponding author:Chen, H.
(chenhy01@)
Source title:Proceedings of the 27th Chinese Control Conference, CCC
Abbreviated source title:Proc. Chin. Control. Conf., CCC
Monograph title:Proceedings of the 27th Chinese Control Conference, CCC
Issue date:2008
Publication year:2008
Pages:532-537
Article number:4605470
Language:Chinese
ISBN-13:9787900719706
Document type:Conference article (CA)
Conference name:27th Chinese Control Conference, CCC
Conference date:July 16,2008 - July 18,2008
Conference location:Kunming, Yunnan, China
Conference code:73759
Sponsor:Technical Committee on Control Theory; Chinese Association of Automation Kunming Univ. Sci. Technol.; Yunnan Division; Chinese Association of Automation
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:The GIS web services are difficult to be found and two many services need to be administered. This paper uses agent to solve this problems .Firstly, it puts forward the structure of GIS sharing system, gives the model and collaborating method of agents. Then it presents the communication method between agents in web service. Experiment shows this method is feasible. Lastly it introduces a subsystem of ITS as sample.
Number of references:11
Main heading:Agents
Controlled terms:Geographic information systems - Information services - Insulating materials - Intelligent vehicle highway systems - Web services - World Wide Web
Uncontrolled terms:Agent - Communication methods - GIS - GIS web services - Service sharing - Web service
Classification code:903.4 Information Services - 903.3 Information Retrieval and Use - 803 Chemical Agents and Basic Industrial Chemicals - 723 Computer Software, Data Handling and Applications - 716 Telecommunication; Radar, Radio and Television - 413 Insulating Materials - 406.1 Highway Systems
DOI:10.1109/CHICC.2008.4605470
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611208614
Title:On-line concentration and pressurized capillary electrochromatographic analysis of phytohormones in corn
Authors:Wang, Shujuan (1); Jia, Li (1); Xing, Da (1); Chen, Deping (2); Zhao, Jingshan (2)
Author affiliation:(1) MOE Key Laboratory of Laser life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Shantou Entry-Exit Inspection and Quarantine Bureau, Shantou, China
Corresponding author:Jia, L.
(jiali@scnu.)
Source title:Journal of Separation Science
Abbreviated source title:J. Sep. Sci.
Volume:31
Issue:5
Issue date:March 2008
Publication year:2008
Pages:859-864
Language:English
ISSN:16159306
E-ISSN:16159314
CODEN:JSSCCJ
Document type:Journal article (JA)
Publisher:Wiley-VCH Verlag, P.O. Box 101161, Weinheim, D-69451, Germany
Abstract:A pressurized CEC (pCEC) method was developed for the separation of phytohormones, in which UV absorbance was used as the detector and a monolithic silica-ODS column as the separation column. The parameters (including the concentration of organic solvent in the mobile phase, pH of the electrolyte buffer, applied voltage) affecting the separation resolution were evaluated. Two on-line concentration techniques, namely, solvent gradient zone sharpening effect and field-enhanced sample stacking, were utilized to improve detection sensitivity. The combination of the two techniques proved to be beneficial to enhance the detection sensitivity by enabling the injection of large volumes of samples. Compared to the conventional injection mode, the enhancement in the detection sensitivities of phytohormones using the on-line concentration technique is in the range from 9- to 23-fold. The developed pCEC method was applied to evaluate phytohormones in corns. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Number of references:44
Main heading:Chromatography
Controlled terms:Hormones - Separation - Ultraviolet detectors
Uncontrolled terms:Phytohormones - Pressurized capillary electrochromatography
Classification code:741.3 Optical Devices and Systems - 801.2 Biochemistry - 802.3 Chemical Operations
Treatment:Experimental (EXP)
DOI:10.1002/jssc.200700519
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082211289350
Title:Novel red light-emitting polymers based on 2,7-carbazole and thiophene derivatives
Authors:Liu, Ran-Sheng (1); Zeng, Wen-Jin (1); Du, Bin (1); Yang, Wei (1); Hou, Qiong (2); Shi, Wei (1); Zhang, Yong (1); Cao, Yong (1)
Author affiliation:(1) Institute of Polymer Optoelectronic Materials and Devices, Key Laboratory of Specially Functional Materials, South China University of Technology, Guangzhou 510640, China; (2) School of Chemistry and Environment, South China Normal University, Guangzhou 510640, China
Corresponding author:Yang, W.
(powyang@scut.)
Source title:Chinese Journal of Polymer Science (English Edition)
Abbreviated source title:Chin J Polym Sci (Engl Ed)
Volume:26
Issue:2
Issue date:March 2008
Publication year:2008
Pages:231-240
Language:English
ISSN:02567679
CODEN:CJPSEG
Document type:Journal article (JA)
Publisher:World Scientific Publishing Co. Pte. Ltd, 5 Toh Tuck Link, Singapore, 596224, Singapore
Abstract:A series of conjugated copolymers derived from 9-ethylhexyl-2,7-carbazole (Cz) and 4,7-di(4-hexylthien-2-yl)-2,1,3-benzothiadiazole (DHTBT) was synthesized by Suzuki polycondensation. The photo- and electro-luminescent properties of these polymers were investigated. Efficient energy transfer from the Cz segment to the DHTBT unit occurs even if the DHTBT content as low as 1 mol%. PL emission was red-shifted significantly from 645 nm to 700 nm with the increase in DHTBT content by 150 mol%. PL efficiencies decreased with the increase in DHTBT content in the polymers from 55% for PCzDHTBT1 gradually down to 7% for PCzDHTBT50. EL emission of these polymers red-shifted from 640 nm to 690 nm when the DHTBT content increased from 1 mol% to 50 mol%. The highest external quantum efficiency was 1.67% for PCzDHTBT25 with the maximum luminescence of 870 cd/m2 in the device configuration of ITO/PEDOT:PSS/polymer/PFN/Ba/Al. The enhancement of device performances could be due to the improved electron injection by inserting the amino-containing polyfluorene (PFN) layer. These polymers are promising candidates as a red emitter in the full-color polymer light emitting diodes (PLEDs). © 2008 World Scientific Publishing Company.
Number of references:36
Main heading:Conjugated polymers
Controlled terms:Copolymers - Derivatives - Light emission - Polycondensation - Thiophene
Uncontrolled terms:2,7-Carbazole - Red light emitting polymers - Thiophene derivatives
Classification code:741.1 Light/Optics - 804.1 Organic Compounds - 815.1.1 Organic Polymers - 815.2 Polymerization
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1142/S025676790800287X
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111423650
Title:Influence of growth rate in the early stage of high temperature GaN layer growth on quality of GaN films
Authors:Li, Shuti (1); Su, Jun (1); Fan, Guanghan (1); Zhang, Yong (1); Zheng, Shuwen (1); Sun, Huiqing (1); Cao, Jianxing (1)
Author affiliation:(1) Institute of Opto-Electronic Materials and Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, S.
(lishuti@scnu.)
Source title:Journal of Crystal Growth
Abbreviated source title:J Cryst Growth
Volume:310
Issue:16
Issue date:August 1, 2008
Publication year:2008
Pages:3722-3725
Language:English
ISSN:00220248
CODEN:JCRGAE
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The effect of growth rate in the early stage of high temperature (HT) GaN layer growth on the quality of GaN by MOCVD has been investigated. The properties of GaN layers were measured by double crystal X-ray diffraction (DCXRD), Hall method, photoluminescence, and atomic force microscopy, respectively. The results reveal that the quality of GaN layers is influenced by the growth rate of HT GaN growth in the early stage. The properties of GaN layers are obviously improved by decreasing the growth rate in the early stage of HT GaN growth properly. However, when the growth rate decreases to some extent, the quality of GaN layer deteriorates instead. The reasons behind this phenomenon were discussed. © 2008 Elsevier B.V. All rights reserved.
Number of references:16
Main heading:Gallium alloys
Controlled terms:Atomic force microscopy - Chemical vapor deposition - Ecology - Gallium nitride - Growth rate - Microscopic examination - Scanning probe microscopy - Semiconducting gallium - Stages - Steel analysis - X ray diffraction analysis
Uncontrolled terms:(PL) properties - Atomic force (AF) - Double crystal x ray diffraction (DC XRD) - Elsevier (CO) - GaN films - GaN growth - GaN layers - High temperature (HT) - layer growth
Classification code:802.2 Chemical Reactions - 801 Chemistry - 746 Imaging Techniques - 741.3 Optical Devices and Systems - 712.1.2 Compound Semiconducting Materials - 712.1.1 Single Element Semiconducting Materials - 712.1 Semiconducting Materials - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 545.3 Steel - 454.3 Ecology and Ecosystems - 402.2 Public Buildings
DOI:10.1016/j.jcrysgro.2008.05.055
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084411674137
Title:Finite-time decoherence could be suppressed efficiently in a photonic crystal
Authors:Wang, Fa-Qiang (1); Zhang, Zhi-Ming (1); Liang, Rui-Sheng (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Wang, F.-Q.
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:78
Issue:4
Issue date:October 20, 2008
Publication year:2008
Article number:042320
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:The decoherence of two initially entangled qubits in anisotropic band-gap photonic crystal has been studied analytically without Born or Markovian approximation. It is shown that the decoherence dynamics of two qubits in a photonic crystal is greatly different from that of two qubits in vacuum or that subjected to the usual non-Markovian reservoir. The results also show that the finite-time decoherence invoked by spontaneous emission could be suppressed efficiently and the entanglement of the Bell state possessing odd parity is more easily preserved in a photonic crystal than that of the Bell state possessing even parity under the same condition. A store scheme for the entangled particle pair is proposed. © 2008 The American Physical Society.
Number of references:28
Main heading:Photonic band gap
Controlled terms:Bells - Crystal atomic structure - Photonic crystals - Powders
Uncontrolled terms:Anisotropic - Bell states - Decoherence - Decoherence dynamics - Entangled particles - Entangled qubits - Even parities - In vacuums - Markovian - Markovian approximations - Odd parities
Classification code:933.1.1 Crystal Lattice - 933.1 Crystalline Solids - 931.3 Atomic and Molecular Physics - 804 Chemical Products Generally - 752.1 Acoustic Devices - 741.3 Optical Devices and Systems - 536 Powder Metallurgy
DOI:10.1103/PhysRevA.78.042320
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084811737569
Title:A modified adaptive genetic BP neural network with application to financial distress analysis
Authors:Zhibin, Xiong (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou city, Guangdong Province, 510631
Corresponding author:Zhibin, X.
(zxiong3@)
Source title:Proceedings - 2nd International Conference on Genetic and Evolutionary Computing, WGEC 2008
Abbreviated source title:Proc. - Int. Conf. Genet. Evol. Comput., WGEC
Monograph title:Proceedings - 2nd International Conference on Genetic and Evolutionary Computing, WGEC 2008
Issue date:2008
Publication year:2008
Pages:149-152
Article number:4637415
Language:English
ISBN-13:9780769533346
Document type:Conference article (CA)
Conference name:2nd International Conference on Genetic and Evolutionary Computing, WGEC 2008
Conference date:September 25,2008 - September 26,2008
Conference location:Jingzhou, Hubei, China
Conference code:74210
Sponsor:Yangtze University; Southeast University; Wuhan Institute of Technology; Guilin University of Electronic Technology; Huanggan Normal University
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Neural networks (NNs) have been widely used to predict financial distress because of their excellent performances of treating non-linear data with self-learning capability. However, common neural networks often suffer from long convergent processes and occasionally involve in a local optimal solution that more or less limited their applications in practice. To overcome the drawbacks of neural networks, this study develops a new modified genetic algorithm - multi-population adaptive genetic back-propagation algorithm (MAGBPA). In this paper, a hybrid system combining feed-forward neural network and MAGBPA -multi-population adaptive genetic back-propagation neural network (MAGBPNN) is proposed to overcome NN's drawbacks. Furthermore, the new model has been applied to financial distress analysis based on the data collected from a set of Chinese listed corporations, and the results indicate that the performance of MAGBPNN model is much better than the ones of common neural network model. © 2008 IEEE.
Number of references:6
Main heading:Neural networks
Controlled terms:Adaptive algorithms - Backpropagation - Diesel engines - Evolutionary algorithms - Feedforward neural networks - Genetic algorithms - Image classification - Ketones - Population statistics - Vegetation
Uncontrolled terms:Back-propagation algorithms - Back-Propagation neural networks - BP neural networks - Excellent performances - Financial distresses - Hybrid systems - Learning capabilities - Local optimal solutions - Modified genetic algorithms - Neural network models - New models
Classification code:921 Mathematics - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 804.1 Organic Compounds - 723.5 Computer Applications - 723.4 Artificial Intelligence - 922.2 Mathematical Statistics - 723 Computer Software, Data Handling and Applications - 612.2 Diesel Engines - 525.1 Energy Resources and Renewable Energy Issues - 461.9 Biology - 461.1 Biomedical Engineering - 716 Telecommunication; Radar, Radio and Television
DOI:10.1109/WGEC.2008.46
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084911765965
Title:Power splitters based on the light-intensity-dependent superprism effect
Authors:Chen, Xiao-Jun (1); Xu, Yi (1); Lan, Sheng (1); Guo, Qi (1); Yang, Xiangbo (1); Wu, Li-Jun (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Wu, L.-J.
(ljwu@scnu.)
Source title:Applied Optics
Abbreviated source title:Appl. Opt.
Volume:47
Issue:26
Issue date:September 10, 2008
Publication year:2008
Pages:4701-4706
Language:English
ISSN:00036935
CODEN:APOPAI
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:By utilizing the nonlinear Kerr effect of the background medium, power splitters based on the light-intensity-dependent superprism effect are realized in a two-stage system, where two photonic lattices are rotated to each other by 16°. The nonlinear finite-difference time-domain method is applied to conducting numerical experiments. The first lattice acts as the deflecting stage, in which beams with different power densities are separated from each other spatially. The second lattice has a function of "angular amplifier" that enlarges the separation angle between two power density ranges (lower than 100 W/μm2 and higher than 300 W/μm 2) to 90° -like. In the first photonic band, due to the local change of refractive indices induced by the pumping power, new interfaces are formed between the pumped and nonpumped areas. The k-vector will be rotated by these interfaces until the phase velocity and group velocity have the same direction. The shape of the interface between these two stages is discussed. © 2008 Optical Society of America.
Number of references:17
Main heading:Phase interfaces
Controlled terms:Kerr magnetooptical effect - Magnetic field effects - Magnetooptical effects - Method of moments - Optical properties - Photonics - Prisms - Refractive index - Time domain analysis
Uncontrolled terms:Background mediums - Change of refractive indices - Finite-difference time-domain methods - Group velocities - Kerr effects - Numerical experiments - Photonic bands - Photonic lattices - Power densities - Power splitters - Pumping powers - Separation angles - Superprism effects - Two stages
Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 921 Mathematics - 801.4 Physical Chemistry - 744 Lasers - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 731.1 Control Systems - 717 Optical Communication - 712 Electronic and Thermionic Materials - 703.1.1 Electric Network Analysis - 701.2 Magnetism: Basic Concepts and Phenomena
DOI:10.1364/AO.47.004701
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083411477951
Title:Blue-shift and broadening of optical spectra from response nonlocality in quantum wells
Authors:Wang, Guanghui (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Solid State Communications
Abbreviated source title:Solid State Commun
Volume:148
Issue:1-2
Issue date:October 2008
Publication year:2008
Pages:14-17
Language:English
ISSN:00381098
CODEN:SSCOA4
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:We show the nonlocal linear optical response of electrons to light field can induce the radiative shift and broadening of optical spectra in square quantum wells (SQW's), and they can be controlled by an applied static electric field. In addition, it is also analyzed how the nonlocal effects will depend on the potential of quantum wells. This work may result in a substantial impact on the growth of the nonlocal materials. © 2008 Elsevier Ltd. All rights reserved.
Number of references:13
Main heading:Semiconductor quantum wires
Controlled terms:Electric fields - Electromagnetic field theory - Electromagnetic fields - Semiconductor quantum wells - Wells
Uncontrolled terms:A. Quantum wells - Blue shifting - D. Optical properties - Light fields - Linear optical response - Non local - Non-local effects - Non-locality - Optical spectrum - Quantum wells - Static electric field
Classification code:446.1 Water Supply Systems - 701 Electricity and Magnetism - 701.1 Electricity: Basic Concepts and Phenomena - 714.2 Semiconductor Devices and Integrated Circuits
DOI:10.1016/j.ssc.2008.07.023
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811573086
Title:Multiple channeled filtering in one dimensional symmetric photonic quantum-well structures
Authors:Chen, Chao-Xiong (1); Huang, Jie-Bin (1); Han, Peng (1); Yang, Guan-Ling (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Chen, C.-X.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:8
Issue date:August 2008
Publication year:2008
Pages:1571-1575
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:Study on the multiple channeled filtering phenomenon of one-dimensional symmetric photonic quantum-well structures is presented by transfer matrix method. It is found that the distribution of transmission peaks is symmetric and almost equal interval. The approximative locations of these peaks can be determined analytically by equivalent theorys. The number of these peaks can be confirmed and adjusted by structural parameter of quantum-well structure, and the stop band can be tuned by choosing high index materials. The structure composed of only two kinds of materials and enjoy quite many materials selectivity, which will facilitate the manufacture and the extension of its application.
Number of references:17
Main heading:Transfer matrix method
Controlled terms:Optical waveguides - Semiconductor device structures
Uncontrolled terms:Multiple-channeled filtering - Photonic crystal - Photonic quantum-well - Quantum-well structures
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 714.3 Waveguides - 717.2 Optical Communication Equipment - 741.3 Optical Devices and Systems - 921 Mathematics
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511483078
Title:Rotating soliton clusters in nonlocal nonlinear media
Authors:Wang, Yu-Qing (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:17
Issue:7
Issue date:July 1, 2008
Publication year:2008
Pages:2527-2534
Language:English
ISSN:16741056
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:From the study of the dynamics for the ring-like soliton clusters, we find that there exists a critical value of the ring radius, dcr, for the stationary rotation of the clusters with respect to the beam centre even in the presence of the relatively strong noise, and that the soliton clusters will not rotate but only undergo periodic collisions in the form of simple harmonic oscillator if the ring radius is large enough. We also show that the direction of the rotation can be opposite to the direction of phase gradient when the relative phase difference is within the domain 0 < |0| < π, while along the direction of phase gradient when the relative phase difference is within the domain π < |θ| < 2π. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:33
Main heading:Chlorine compounds
Controlled terms:Solitons
Uncontrolled terms:Critical values - Nonlocal nonlinear media - Soliton clusters - Spatial optical soliton
Classification code:804.1 Organic Compounds - 921.1 Algebra
DOI:10.1088/1674-1056/17/7/031
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911248658
Title:DNA-promoted electrochemical assembly of [Ru(bpy)2dpp]3+/2+ on the ITO electrode by introducing copper(II) ion
Authors:Yao, Su (1); Li, Hong (1); Guo, Qingyu (1); Xu, Zhenghe (1); Ji, Liangnian (2)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China; (2) Department of Chemistry, Zhongshan University, Guangzhou, 510275, China
Corresponding author:Li, H.
(lihong@scnu.)
Source title:Electrochimica Acta
Abbreviated source title:Electrochim Acta
Volume:53
Issue:16
Issue date:June 30, 2008
Publication year:2008
Pages:5169-5173
Language:English
ISSN:00134686
CODEN:ELCAAV
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:The electrochemical assembly of [Ru(bpy)2dpp]3+/2+ (where bpy = 2,2′-bipyridine, dpp = 2,3-bis (2-pyridyl) pyrazine) promoted by calf thymus DNA on an ITO electrode based on the introduction of copper(II) ion has been investigated. There exists a diffusion-controlled wave and two prewaves for the complex in the differential pulse voltammetric sweeping process. The formal potential of the high prewave shift ca. 0.530 V negatively compared with that of the diffusion-controlled wave. Dpp ligand with two vacant chelating N sites in the complex can bite Cu2+ and the resultant heterometallic complex shows a weakened assembly in contrast to that of [Ru(bpy)2dpp]3+/2+ alone. Furthermore, double stranded DNA is able to accelerate the assembly of the ruthenium complex and heterometallic complex generated by chelating with Cu2+ by using the ITO surface, the prompted strength of the latter is far stronger than the former. Their assembled mechanism enhanced by DNA is proposed. © 2008 Elsevier Ltd. All rights reserved.
Number of references:44
Main heading:Ruthenium compounds
Controlled terms:Chelation - Copper compounds - Diffusion - DNA sequences - Electrochemistry
Uncontrolled terms:Electrochemical assembly - Polypyridyl ruthenium(II) complex - Voltammetric sweeping
Classification code:461.2 Biological Materials and Tissue Engineering - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 804.1 Organic Compounds - 931.1 Mechanics
Treatment:Experimental (EXP)
DOI:10.1016/j.electacta.2008.02.061
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084111631146
Title:The approximate ABCD matrix for a parabolic lens of revolution and its application in calculating the coupling efficiency
Authors:Liu, Hongzhan (1)
Author affiliation:(1) Laboratory of Information Technology, School of Information Photoelectric Science and Technology, The South China Normal University, Guangzhou, 510006, China
Corresponding author:Liu, H.
(lhzhan@.cn)
Source title:Optik
Abbreviated source title:Optik
Volume:119
Issue:14
Issue date:November 2008
Publication year:2008
Pages:666-670
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Urban und Fischer Verlag Jena, P.O. Box 100537, Jena, 07705, Germany
Abstract:Using ray optics, we present an explicit formulation of the ABCD matrix for reflection and refraction of light beams at a parabolic interface separating media of different refractive indices under paraxial approximation. Based on the formulated ABCD matrix for refraction by a parabolic lens tip, we present a simple theoretical investigation of the coupling efficiency between a laser diode and a single-mode fiber with a parabolic lens formed on the fiber tip. The results show that this technique is effective and will be of benefit to designing suitable microlenses applying the laser-coupling technique. © 2007 Elsevier GmbH. All rights reserved.
Number of references:13
Main heading:Matrix algebra
Controlled terms:Fiber optics - Geometrical optics - Lasers - Lenses - Light - Light reflection - Optical instruments - Optical properties - Refraction - Refractive index
Uncontrolled terms:ABCD matrix - Coupling efficiencies - Coupling efficiency - Explicit formulation - Fiber tips - Laser diode - Light beams - Parabolic lens - Paraxial approximations - Ray-optics - Refractive indices - Single-mode fiber
Classification code:941.3 Optical Instruments - 921.1 Algebra - 744.1 Lasers, General - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 741.1 Light/Optics - 711 Electromagnetic Waves
DOI:10.1016/j.ijleo.2007.01.014
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711092631
Title:Chemical detoxification of AflatoxinB1 in rice by several solutions through fluorescence spectral experiment
Authors:Chen, WenLi (1); Zhou, Quan (3); Xing, Da (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) College of Life Science, South China Normal University, Guangzhou 510631, China; (3) First Affiliated Hospital of Jinan University, Medical Imaging Center, Guangzhou 510630, China
Corresponding author:Chen, W.
(chenwl@scnu.)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1032-1036
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:AflatoxinB1 was extracted from rice contaminated artificially with Aspergillus flavus by using methanol-water (50:50 v/v). As for experiment group, sodium chloride was added into the extracted solution of AfBl, the excitation wavelength of 365 nm under the fluorescence mode, and the emission spectrum peak at 440nm were observed. To study the detoxification of AflatoxinB 1 in several alkaline solutions, the solution of alkaline with difference concentration was added into the solution of AfB1 respectively. The results showed that all of three alkaline solutions could decrease the 440nm emission spectrum peak of solution of AfBI in varying degrees, the effect to decrease emission spectrum peak of AfBl was very obvious in sodium hypochlorite (NaClO), and sodium hydroxide (NaOH) took second place, whereas in ammonia (NH3.H 2O), the effect was the weakest among three alkaline solutions. Moreover, the effects were different in the same alkaline solutions with different concentration, as hydrochloric acid (HCl) in low concentration was added to this complex AfB1 alkaline solutions, detoxification efficacy of AfB1 were found to be obviously increased. It was concluded that the detoxification of AflatoxinB1 may be affected by alkaline solutions according to their concentration and be degraded greatly by acid addition.
Number of references:16
Main heading:Grain (agricultural product)
Controlled terms:Ammonia - Detoxification - Emission spectroscopy - Fluorescence spectroscopy - Hydrochloric acid - Methanol - Sodium compounds
Uncontrolled terms:Alkaline solutions - Aspergillus flavus - Chemical detoxification - Emission spectrum peak
Classification code:941.3 Optical Instruments - 821.4 Agricultural Products - 804.2 Inorganic Compounds - 941.4 Optical Variables Measurements - 804.1 Organic Compounds - 741.1 Light/Optics - 445.1 Water Treatment Techniques - 741.3 Optical Devices and Systems
Treatment:Theoretical (THR); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011392935
Title:Proper monogamy inequality for arbitrary pure quantum states
Authors:Ou, Yong-Cheng (1); Fan, Heng (2); Fei, Shao-Ming (3)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photonelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China; (2) Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (3) Department of Mathematics, Capital Normal University, Beijing 100037, China; (4) Institut für Angewandte Mathematik, Universität Bonn, D-53115, Germany
Corresponding author:Ou, Y.-C.
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:78
Issue:1
Issue date:July 9, 2008
Publication year:2008
Article number:012311
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We provide a detailed proof of an analytical lower bound of entanglement quantified by concurrence for arbitrary bipartite quantum states. It is shown that though the bound does not allow one to detect bound entanglement, it is tight for some mixed states and can detect most of the free entanglement. On the other hand, it is known that the entanglement monogamy inequality proposed by Coffman, Kundu, and Wootters is, in general, not true for higher-dimensional quantum states. Inducing from the lower bound of concurrence, we find a proper form of entanglement monogamy inequality for arbitrary pure quantum states. © 2008 The American Physical Society.
Number of references:31
Main heading:Electron energy levels
Controlled terms:Control theory - Military data processing
Uncontrolled terms:American Physical Society (APS) - Bipartite quantum states - Bound entanglement - Lower bounds - Mixed states - Monogamy inequalities - Quantum states
Classification code:723.2 Data Processing and Image Processing - 731.1 Control Systems - 931.3 Atomic and Molecular Physics
DOI:10.1103/PhysRevA.78.012311
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083311456594
Title:Dependence of nonlinearity enhancement on power density in photonic crystals characterized by numerical Z-scan experiments based on the finite-difference time-domain technique
Authors:Meng, Zi-Ming (1); Liu, Hai-Ying (1); Dai, Qiao-Feng (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Liu, Song-Hao (1); Lan, Sheng (1); Trofimov, V.A. (2)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006 Guangdong, China; (2) Department of Computational Mathematics and Cybenetics, M. V. Lomonosov Moscow State University, Moscow 119992, Russia
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Journal of the Optical Society of America B: Optical Physics
Abbreviated source title:J Opt Soc Am B
Volume:25
Issue:4
Issue date:April 2008
Publication year:2008
Pages:555-563
Language:English
ISSN:07403224
CODEN:JOBPDE
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:We investigate the enhancement of nonlinearity in one-dimensional (1D) photonic crystals (PCs) with Kerr nonlinearity by numerical Z-scan experiments based on the finite-difference time-domain technique. Focused Gaussian beams with well-defined waists and Rayleigh lengths necessary for Z-scan experiments are generated through a conjugated manipulation of the Gaussian beams propagating in free space. The Z-scan measurements used for bulk materials are naturally extended to 1D PCs after incorporating the frequency- and power-density-dependent reflections into their linear and nonlinear absorptions. The closed- and open-aperture Z-scan traces for the 1D PCs are obtained and a symmetric method is employed to modify the asymmetric closed-aperture traces. The nonlinearity enhancement factors at different frequencies in the first and second bands are derived numerically and analytically. A good agreement is found between the numerical and analytical results in the case of weak nonlinearity. Moreover, the dependences of the enhancement factor on the incident power density for different frequencies in the 1D PCs are extracted and they are found to be much different from those in bulk materials. It is revealed that the variation of the group velocity with increasing power density is responsible for the power-density dependence of the enhancement factor. It indicates that in practice one must deliberately choose the working frequency and power density of PC-based devices in order to achieve a maximum enhancement of nonlinearity. © 2008 Optical Society of America.
Number of references:28
Main heading:Photonic crystals
Controlled terms:Crystal atomic structure - Crystallography - Crystals - Electromagnetic field theory - Electromagnetic fields - Electromagnetism - Experiments - Extraction - Finite difference time domain method - Gaussian beams - Gaussian noise (electronic) - Magnetism - Materials handling equipment - Microcomputers - Ontology - Photonics - Powders - Time domain analysis - Trellis codes
Uncontrolled terms:Analytical results - Bulk materials - Density-dependence - Density-dependent - Different frequencies - Enhancement factors - Finite difference time domain techniques - Free spaces - Group velocities - Incident power - Kerr non-linearity - Non linearities - Non-linear absorption - Non-linearity enhancement - One-dimensional photonic crystals - Open-aperture Z-scan - PC-based - Power densities - Rayleigh lengths - Weak non-linearity - Working frequencies - Z-scan measurements
Classification code:723.2 Data Processing and Image Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 933.1 Crystalline Solids - 802.3 Chemical Operations - 921 Mathematics - 931.3 Atomic and Molecular Physics - 901.3 Engineering Research - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 536 Powder Metallurgy - 691.1 Materials Handling Equipment - 701 Electricity and Magnetism - 701.1 Electricity: Basic Concepts and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 711 Electromagnetic Waves
DOI:10.1364/JOSAB.25.000555
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111269902
Title:A novel approach based on OCT for tongue inspection in traditional Chinese medicine
Authors:Dong, Haixin (1); Guo, Zhouyi (1); Zeng, Changchun (1); Zhong, Huiqing (1); Gong, Xin (1); He, Yonghong (2); Wang, Ruikang K. (3); Liu, Songhao (1)
Author affiliation:(1) Lab. of Photonic Chinese Medicine, MOE Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; (3) Department of Biomedical Engineering, Oregon Health and Science University, Beaverton, OR 97006, United States
Corresponding author:Zeng, C.
(gzzysys@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:682604
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:The aim of this report is to establish a tongue inspection method based on OCT imaging for quantifying the tongue properties in traditional Chinese medical diagnosis. The measurement was performed in the model of rats suffering with Spleen-Stomach Dampness-Heat Syndrome using OCT equipment, OCT image and histology estimates of the glossal layer of microstructure were obtained, and the accurate thickness and moisture degree of the tongue coating were analyzed. These OCT image showed that tongue every layer matched the histology estimates of the glossal microstructure, and compared with normal control group the thickness of tongue coating increased in rats suffering with Spleen-Stomach Dampness-Heat Syndrome than normal control rats (P<0.01), yet the moisture degree of tongue body of model group decreased (P<0.01). Therefore, OCT image technique may be benefit and helpful as a tool to provide an objective diagnostic standard for study on tongue inspection in the clinical practice and research of TCM.
Number of references:27
Main heading:Optical tomography
Controlled terms:Biological organs - Diagnosis - Diseases - Microstructure
Uncontrolled terms:Spleen-Stomach Dampness-Heat Syndrome (SSDHS) - Tongue Inspection (TI)
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 461.7 Health Care - 741.3 Optical Devices and Systems - 951 Materials Science
Treatment:Experimental (EXP)
DOI:10.1117/12.758455
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011783362
Title:Unsaturated trinuclear ruthenium carbonyls: Large structural differences between analogous carbonyl derivatives of the first, second, and third row transition metals
Authors:Peng, Bin (1); Li, Qian-Shu (1); Xie, Yaoming (3); King, R. Bruce (1); Schaefer III, Henry F. (3)
Author affiliation:(1) Center for Computational Quantum Chemistry, South China Normal University, Guangzhou, 510631, China; (2) Institute of Chemical Physics, Beijing Institute of Technology, Beijing, 100081, China; (3) Department of Chemistry, Center for Computational Chemistry, University of Georgia, Athens, GA 30602, United States
Corresponding author:Li, Q.-S.
(qsli@scnu.)
Source title:Dalton Transactions
Abbreviated source title:Dalton Trans.
Issue:48
Issue date:2008
Publication year:2008
Pages:6977-6986
Language:English
ISSN:14779226
E-ISSN:14779234
Document type:Journal article (JA)
Publisher:Royal Society of Chemistry, Milton Road, Cambridge, CB4 OWF, United Kingdom
Abstract:For the saturated carbonyl trimer Ru3(CO)12 theoretical methods predict a doubly bridged Ru3(CO) 10(μ-CO)2 structure to lie only 0.3 kcal mol -1 above the unbridged global minimum in accord with the fluxional properties observed experimentally by carbon-13 NMR on the very stable unbridged Ru3(CO)12. For M3(CO)11 and M 3(CO)10 the global minima for the Fe, Ru, and Os derivatives each have totally different arrangements of the carbonyl groups. Thus the global minimum of Ru3(CO)11 is singly edge-semibridged Ru3(CO)10(μ-CO) in contrast to the doubly face-bridged Fe3(CO)9(μ3-CO) 2 and triply edge-bridged Os3(CO)8(μ-CO) 3 found as global minima for the iron and osmium analogues, respectively. Furthermore, comparison of our predicted ν(CO) frequencies for low-lying unbridged, singly bridged, and doubly bridged isomers of Ru 3(CO)11 with the 1987 experiments of Bentsen and Wrighton indicates that three different Ru3(CO)11 isomers are generated in these low-temperature inert matrix Ru3(CO)12 photolysis experiments depending on the conditions. For Ru3(CO) 10 the global minimum is a triply bridged structure Ru 3(CO)7(μ-CO)3, which is very different from the Fe3(CO)9(μ3-CO) and Os 3(CO)8(μ3-CO)(μ-CO) global minima found for the iron and osmium analogues, respectively. For Ru3(CO) 9 the global minimum is a singly bridged structure Ru 3(CO)8(μ-CO) analogous to the global minimum for the osmium analogue but totally different from the triply bridged global minimum of Fe3(CO)9. © 2008 The Royal Society of Chemistry.
Number of references:32
Main heading:Osmium
Controlled terms:Carbonylation - Computer operating systems - Isomers - Nuclear magnetic resonance - Photolysis - Ruthenium - Structural metals - Transition metals
Uncontrolled terms:Bridged structures - Carbonyl derivatives - Carbonyl groups - Global minimums - Inert matrixes - Ruthenium carbonyls - Structural differences - Third row transition metals
Classification code:932.2 Nuclear Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 804 Chemical Products Generally - 802.2 Chemical Reactions - 801 Chemistry - 741.1 Light/Optics - 723 Computer Software, Data Handling and Applications - 722 Computer Systems and Equipment - 547.1 Precious Metals - 531 Metallurgy and Metallography - 415.1 Metal Structural Materials
DOI:10.1039/b810710f
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090111834012
Title:An anonymous authentication protocol for privacy protection in location based services
Authors:Cao, Yang (1); Li, Yan (1); Li, Hui (1); Wang, Xingfang (1)
Author affiliation:(1) Spatial Information Research Center, School of Computer, South China Normal University, Guangzhou, China
Corresponding author:Cao, Y.
(cao_yang00@)
Source title:2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Abbreviated source title:Int. Conf. Wirel. Commun., Netw. Mob. Comput., WiCOM
Monograph title:2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Issue date:2008
Publication year:2008
Article number:4679044
Language:English
ISBN-13:9781424421084
Document type:Conference article (CA)
Conference name:2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Conference date:October 12,2008 - October 14,2008
Conference location:Dalian, China
Conference code:74850
Sponsor:Wuhan University, China; Dalian University of Technology, China; IEEE Antennas and Propagation Society; Scientific Research Publishing, USA; IEEE Communications Society
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Privacy protection is particularly challenging in location based services (LBS). On one hand, service providers want to authenticate legitimate users. On the other hand, mobile users would prefer not to expose any information which enables anyone, including service providers, to get some clue regarding their whereabouts. To resolve this dilemma, we propose an anonymous authentication protocol to protect mobile users' privacy during the interactions between users and service providers in LBS. In this protocol, the service providers use blind signature to generate an authorized anonymous ID for the user, and then the user uses ring signature to mix the anonymous ID into a group of authorized IDs. We formally verity the correctness of the authentication and key establishment procedure in the protocol. In some practical situations, our protocol provides an efficient mechanism for balancing users' need for high-quality information services against their need for privacy protection. © 2008 IEEE.
Number of references:10
Main heading:Computer networks
Controlled terms:Access control - Authentication - Data structures - Global system for mobile communications - Information services - Mobile computing - Wireless networks - Wireless telecommunication systems
Uncontrolled terms:Anonymous authentication protocol - Blind signature - Key establishments - Legitimate users - Location based services - Mobile users - One hands - Privacy protections - Ring signature - Service providers
Classification code:903.4 Information Services - 723.3 Database Systems - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 722.3 Data Communication, Equipment and Techniques - 722 Computer Systems and Equipment - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716.3 Radio Systems and Equipment - 716 Telecommunication; Radar, Radio and Television
DOI:10.1109/WiCom.2008.1136
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081211162303
Title:Decoy state quantum key distribution with dual detectors heralded single photon source
Authors:Mi, Jing-Long (0); Wang, Fa-Qiang (0); Lin, Qing-Qun (0); Liang, Rui-Sheng (0); Liu, Song-Hao (0)
Corresponding author:Mi, J.-L.
Corr. author affiliation:Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:2
Issue date:February 2008
Publication year:2008
Pages:678-684
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:Decoy state has recently been proved as a useful method for substantially improving the performance of quantum key distribution (QKD). Considering the imperfect extinction ratio and the spontaneous emission of the practical Laser, vacuum states are not prepared easily. So in this paper, the optimal situation of the decoy state protocol applied to the QKD system with heralded single photon source (HSPS) is complemented and extended. The two weak decoy state protocol and the one decoy state protocol are proposed. At last, the theory of dual detectors is combined with the QKD system with HSPS. In the simulation, the secure distance is up to 221.5 km, which is approximately 50 km more than that of the on-off detectors.
Number of references:26
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211645272
Title:Experimental quantum key distribution with double protocol
Authors:Hu, Hua-Peng (0); Zhang, Jing (0); Wang, Jin-Dong (0); Huang, Yu-Xian (0); Lu, Yi-Qun (0); Liu, Song-Hao (0); Lu, Wei (0)
Corresponding author:Hu, H.-P.
Corr. author affiliation:Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:9
Issue date:September 2008
Publication year:2008
Pages:5605-5611
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:We propose one kind of improved QKD scheme based on time coding and phase coding. The pulse which had been discarded on the BB84 protocol phase coding QKD system is used to realize the time coding protocol, thus the useful bits rate in the present scheme can be doubled. At the same time, the phase coding keys and the time coding keys are obtained, we may combine both as new keys which can enhance the generated rate and the sensitivity of monitor. At Bob's side, a Fraday-Michelson is used instead of a traditional M-Z interferometer, which improves the stability of the interference visibility. With the proposed experimental setup, a stable quantum key distribution was performed over 90 km fiber. It is shown in our experiment that the characteristics of our system are as follows: secure, stable and economical.
Number of references:23
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511483412
Title:Oscillation criteria for damped half-linear PDE via the integral operator
Authors:Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xztxhyyj@pub.guangzhou.)
Source title:Mathematical and Computer Modelling
Abbreviated source title:Math. Comput. Model.
Volume:48
Issue:7-8
Issue date:October 2008
Publication year:2008
Pages:1227-1236
Language:English
ISSN:08957177
CODEN:MCMOEG
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:By using the integral operator, we establish some oscillation criteria for the damped half-linear PDE underover(∑, i, j = 1, N) Di (ai j (x) {norm of matrix} D y {norm of matrix}α - 1 Dj y) + ⟨ b (x), {norm of matrix} D y {norm of matrix}α - 1 D y ⟩ + c (x) | y |α - 1 y = 0 . The results are extensions of integral averaging technique of Kamenev and include earlier results of Usami, Xu and Xing. © 2008 Elsevier Ltd. All rights reserved.
Number of references:15
Main heading:Mathematical operators
Controlled terms:Aircraft engines - Integral equations - Partial differential equations
Uncontrolled terms:Damped - Half-linear - Half-linear PDE - Integral operator - Integral operators - Oscillation - Oscillation criterion - Second order
Classification code:653.1 Aircraft Engines, General - 921 Mathematics - 921.2 Calculus
DOI:10.1016/j.mcm.2007.12.019
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911930100
Title:IC wafer defect detection using image segmentation based on cultural algorithms
Authors:Pan, Zhongliang (1); Chen, Ling (1); Zhang, Guangzhao (2)
Author affiliation:(1) School of Physics and Telecommunications Engineering, South China Normal University, Guangzhou 510006, China; (2) Department of Electronics and Communications, Sun Yat-sen University, Guangzhou 510275, China
Corresponding author:Pan, Z.
(panz@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:7130
Monograph title:Fourth International Symposium on Precision Mechanical Measurements
Issue date:2008
Publication year:2008
Article number:713046
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:4th International Symposium on Precision Mechanical Measurements
Conference date:August 25,2008 - August 29,2009
Conference location:Hefei/Jiuhua Mountain, Anhui, China
Conference code:75385
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:The integrated circuit (IC) design technology has made the chip density continue to increase. The high performance chips have a high sensitivity to the slightest defects in manufacturing procedure, therefore the defect detection is needed in order to ensure the performances of chip and semiconductor device. For the defects on a wafer, a detection method using image segmentation is presented in this paper. The method performs the segmentation of wafer image by selecting the threshold values. The optimal thresholds are computed by the technique based on cultural algorithm. The designs of population space, the belief space, and communication protocol in the cultural algorithm, are given in detail. An integration of genetic algorithm and simulated annealing is used to produce the new individuals in the population space. The experimental results show that the defect detection method proposed in this paper can obtain the features of defects effectively, the better image about the defect on a wafer can be obtained if the differential chart of the original image and the intact image of wafer is computed in advance. © 2008 SPIE.
Number of references:15
Main heading:Defects
Controlled terms:Algorithms - Communication - Digital image storage - Image segmentation - Imaging systems - Integrated circuits - Mechanical variables measurement - Semiconductor device manufacture - Simulated annealing
Uncontrolled terms:Belief spaces - Chip densities - Communication protocols - Cultural algorithms. - Defect detection - Defect detection methods - Detection methods - High sensitivities - IC wafers - Integrated circuit designs - Manufacturing procedures - Optimal thresholds - Original images - Population spaces - Wafer - Wafer images
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques - 741 Light, Optics and Optical Devices - 921 Mathematics - 943.2 Mechanical Variables Measurements - 951 Materials Science - 933.1 Crystalline Solids - 723.2 Data Processing and Image Processing - 531.2 Metallography - 537.1 Heat Treatment Processes - 714.2 Semiconductor Devices and Integrated Circuits - 423 Non Mechanical Properties and Tests of Building Materials - 716 Telecommunication; Radar, Radio and Television - 722.4 Digital Computers and Systems - 723 Computer Software, Data Handling and Applications - 722.1 Data Storage, Equipment and Techniques
DOI:10.1117/12.819710
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080311036443
Title:Defect modes merging in one-dimensional photonic crystals with multiple single-negative material defects
Authors:Chen, Yihang (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Chen, Y.
(kallenmail@)
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:92
Issue:1
Issue date:2008
Publication year:2008
Article number:011925
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:Twin defect modes are found to merge into each other in one-dimensional photonic crystals consisting of periodic layers of single-negative (permittivity- or permeability-negative) materials and multiple single-negative defect layers. By increasing the size or the number of the defects, the two defect modes both approach to the middle of the forbidden band gap, then merge when the photonic structure becomes nihility. In addition, the electric fields at the central frequency of the band gap could be designed to be strongly localized at just one interface between the defect layers and the periodic layers of the photonic crystal with low transmission. © 2008 American Institute of Physics.
Number of references:18
Main heading:Photonic crystals
Controlled terms:Electric field effects - Energy gap - Permittivity
Uncontrolled terms:Photonic structure - Single negative material defects
Classification code:701 Electricity and Magnetism - 701.1 Electricity: Basic Concepts and Phenomena - 712.1 Semiconducting Materials - 741.3 Optical Devices and Systems
Treatment:Theoretical (THR)
DOI:10.1063/1.2832661
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611701349
Title:A class of key predistribution schemes based on orthogonal arrays
Authors:Dong, Jun-Wu (1); Pei, Ding-Yi (2); Wang, Xue-Li (3)
Author affiliation:(1) College of Mathematics and Econometrics, Hunan University, Changsha 410082, China; (2) Institute of Information Security, Guangzhou University, Guangzhou 510006, China; (3) School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China
Corresponding author:Dong, J.-W.
(djunwu1971@.cn)
Source title:Journal of Computer Science and Technology
Abbreviated source title:J Comput Sci Technol
Volume:23
Issue:5
Issue date:September 2008
Publication year:2008
Pages:825-831
Language:English
ISSN:10009000
CODEN:JCTEEM
Document type:Journal article (JA)
Publisher:Springer New York LLC, 233 Springer Street, New York, 10013-1578, United States
Abstract:Pairwise key establishment is a fundamental security service in sensor networks; it enables sensor nodes to communicate securely with each other using cryptographic techniques. In order to ensure this security, many approaches have been proposed recently. One of them is to use key predistribution schemes (KPSs) by means of combinatorial designs. In this paper, we use the Bush's construction of orthogonal arrays to present a class of key predistribution schemes for distributed sensor networks. The secure connectivity and resilience of the resulting sensor network are analyzed. This KPS constructed in our paper has some better properties than those of the existing schemes. © 2008 Springer.
Number of references:17
Main heading:Sensor networks
Controlled terms:Distributed computer systems - Sensors - Telecommunication equipment - Wireless sensor networks
Uncontrolled terms:Bush's construction - Combinatorial design - Combinatorial designs - Cryptographic techniques - Distributed Sensor networks - Key predistribution scheme - Key predistribution schemes - Orthogonal array - Orthogonal arrays - Pairwise key establishments - Security services - Sensor nodes
Classification code:732.2 Control Instrumentation - 732 Control Devices - 731.1 Control Systems - 722.4 Digital Computers and Systems - 801 Chemistry - 722.3 Data Communication, Equipment and Techniques - 717 Optical Communication - 716.3 Radio Systems and Equipment - 716 Telecommunication; Radar, Radio and Television - 718 Telephone Systems and Related Technologies; Line Communications
DOI:10.1007/s11390-008-9168-1
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711092642
Title:Scanning photoacoustic tomography in biological tissues with a piezoelectric double-ring sensor
Authors:Wang, Hui (1); Xiang, Liangzhong (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Wang, H.
(wanghui@scnu.)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1105-1110
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:Scanning photoacoustic tomography with a piezoelectric double-ring sensor was explored to image biological tissues, and short laser pulses irradiated tissues to generate acoustic waves by thermoelastic expansion. The laser-induced photoacoustic waves were detected by a piezoelectric double-ring sensor. This double-ring sensor has the advantage that it is more sensitive in the forward direction compared with other conventional sensors. An optical fiber for illumination of the sample was integrated with the sensor, which enabled reflection-mode detection of ultrasonic waves. Consequently, two-dimension photoacoustic tomography of biological tissues could be obtained in a manner analogous to the ultrasound B-scan mode by a linear scan over the tissue surfaces. To reach a large depth, 1064nm laser light was used in our experiments. The experimental results showed that the reconstructed photoacoustic images agree well with the structures of the samples. It demonstrated that this sensor has potential to monitoring tumor angiogenesis, and antiangiogenic therapy in vivo.
Number of references:17
Main heading:Tissue
Controlled terms:Image sensors - Photoacoustic effect - Piezoelectric devices - Ultrasonic waves
Uncontrolled terms:Antiangiogenic therapy - Laser light - Scanning photoacoustic tomography - Thermoelastic expansion
Classification code:461.2 Biological Materials and Tissue Engineering - 704 Electric Components and Equipment - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 751.1 Acoustic Waves - 753.1 Ultrasonic Waves
Treatment:Theoretical (THR); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080411052429
Title:Kinetic studies on oxirane cleavage of epoxidized soybean oil by methanol and characterization of polyols
Authors:Lin, Bo (1); Yang, Liting (1); Dai, Honghai (1); Yi, Aihua (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510631, China
Corresponding author:Yang, L.
(yanglt63@.cn)
Source title:JAOCS, Journal of the American Oil Chemists' Society
Abbreviated source title:JAOCS J Am Oil Chem Soc
Volume:85
Issue:2
Issue date:February 2008
Publication year:2008
Pages:113-117
Language:English
ISSN:0003021X
CODEN:JJASDH
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:The kinetics of the oxirane cleavage of epoxidized soybean oil (ESO) by methanol (Me) without a catalyst was studied at 50, 60, 65, 70 °C. The rate of oxirane ring opening is given by k[Ep][Me]2, where [Ep] and [Me] are the concentrations of oxiranes in ESO and methanol, respectively and k is a rate constant. From the temperature dependence of the kinetics thermodynamic parameters such as enthalpy (ΔH), entropy (ΔS), free energy of activation (ΔF) and activation energy (ΔE a) were found to be 76.08 (±1.06) kJ mol-1, -118.42 (±3.12) J mol-1 k-1, 111.39 (±2.86) kJ mol-1, and 78.56 (±1.63) kJ mol-1, respectively. The methoxylated polyols formed from the oxirane cleavage reaction , were liquid at room temperature and had three low temperature melting peaks. The results of chemical analysis via titration for residual oxiranes in the reaction system showed good agreement with IR spectroscopy especially the disappearance of epoxy groups at 825, 843 cm-1 and the emergence of hydroxy groups at the OH characteristic absorption peak from 3,100 to 3,800 cm-1. © 2007 AOCS.
Number of references:15
Main heading:Vegetable oils
Controlled terms:Activation energy - Enthalpy - Free energy - Hydroxylation - Oxidation - Seed
Uncontrolled terms:Epoxidized soybean oil - Methoxylated polyols - Ring opening
Classification code:641.1 Thermodynamics - 801.4 Physical Chemistry - 802.2 Chemical Reactions - 804.1 Organic Compounds - 821.4 Agricultural Products
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1007/s11746-007-1187-5
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082211279699
Title:Sensitive detection of weak absorption signals in photoacoustic spectroscopy by using derivative spectroscopy and wavelet transform
Authors:Zheng, Jincun (1); Tang, Zhilie (1); He, Yongheng (1); Guo, Lina (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, Guangdong 510006, China; (2) Department of Physics and Information Technology, Yulin Normal University, Yulin Guangxi 537000, China
Corresponding author:Tang, Z.
(tangzhl@scnu.)
Source title:Journal of Applied Physics
Abbreviated source title:J Appl Phys
Volume:103
Issue:9
Issue date:2008
Publication year:2008
Article number:093116
Language:English
ISSN:00218979
CODEN:JAPIAU
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:This report presents a practical analytical method of photoacoustic (PA) spectroscopy that is based on wavelet transform (WT) and the first-derivative PA spectrum. An experimental setup is specially designed to obtain the first-derivative spectrum, which aims to identify some unnoticeable absorption peaks in the normal PA spectrum. To enhance the detectability of overlapping spectral bands, the WT is used to decompose the PA spectrum signals into a series of localized contributions (details and approximation) on the basis of the frequency. For the decomposed contributions do not change the absorption peak position of PA spectrum, one can retrieve the weak absorption signals by the decomposed result of WT. Because of the use of derivative spectroscopy and WT, three unnoticeable absorption peaks that are hidden in the PA spectrum of carbon absorption are precisely retrieved, the wavelengths of which are 699.7, 752.7, and 775.5 nm, respectively. This analytical method, which has the virtue of using a physical method and using a computer software method, can achieve great sensitivity and accuracy for PA spectral analysis. © 2008 American Institute of Physics.
Number of references:20
Main heading:Wavelet transforms
Controlled terms:Absorption spectra - Computer software - Photoacoustic spectroscopy - Sensitivity analysis - Spectrum analysis - Wavelength
Uncontrolled terms:Absorption signals - Overlapping spectral bands - Sensitive detection
Classification code:723 Computer Software, Data Handling and Applications - 741.1 Light/Optics - 751.1 Acoustic Waves - 921.3 Mathematical Transformations
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1063/1.2924438
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611514501
Title:Novel optical directional coupler based on surface plasmon polaritons
Authors:Zhao, Huawei (1); Guang, Xu Guang (1); Huang, Jingtang (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, China
Corresponding author:Zhao, H.
(zhw01981@)
Source title:Physica E: Low-Dimensional Systems and Nanostructures
Abbreviated source title:Phys E
Volume:40
Issue:10
Issue date:September 2008
Publication year:2008
Pages:3025-3029
Language:English
ISSN:13869477
CODEN:PELNFM
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:In this paper, finite difference time domain (FDTD) method and perfect matching layer (PML) absorbing boundary condition are adopted to simulate and analyze a novel optical directional coupler (ODC) based on surface plasmon polaritons (SPPs). Transmittance at each output port of the novel ODC with different coupling region lengths shows it follows the general regulations of a conventional ODC. Especially, its transverse size is of nanoscale. The extreme power position offset between the two output ports is proved to be connected with the real part of Ag's complex refractive index. The excess loss and isolation of the ODC are, respectively, 0.57 and 25.9 dB for 1550 nm telecommunication wavelength, when the length of the coupling region equals half of its coupling length. © 2008 Elsevier B.V. All rights reserved.
Number of references:12
Main heading:Optical waveguides
Controlled terms:Boundary conditions - Chlorine compounds - Correlation theory - Directional couplers - Finite difference method - Finite difference time domain method - Numerical analysis - Optical properties - Phonons - Photons - Plasmons - Ports and harbors - Quantum theory - Refractive index - Silver - Solids - Waveguide couplers
Uncontrolled terms:1550 nm - Absorbing boundary condition - Complex refractive index - Coupling length - Coupling regions - Excess losses - Finite difference time domain (FDTD) - Finite-difference time-domain methods - Nano scaling - Optical directional couple (ODC) - Optical- - Output ports - Perfect matching - Real part - Surface plasmon polaritons - Surface plasmon polaritons (SPPs) - Telecommunication wavelengths - Transverse sizes
Classification code:931.4 Quantum Theory; Quantum Mechanics - 931.3 Atomic and Molecular Physics - 921.6 Numerical Methods - 921 Mathematics - 804.1 Organic Compounds - 933 Solid State Physics - 751.1 Acoustic Waves - 716.1 Information Theory and Signal Processing - 714.3 Waveguides - 547.1 Precious Metals - 407.1 Maritime Structures - 741.1 Light/Optics
DOI:10.1016/j.physe.2008.02.019
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090111835161
Title:Governance effect between performance and transferring of control rights in listed companies
Authors:Zhu, Qi (1)
Author affiliation:(1) School of Economics and Management, South China Normal University, Guangzhou, China
Corresponding author:Zhu, Q.
(zhuqi@scnu.)
Source title:2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Abbreviated source title:Int. Conf. Wirel. Commun., Netw. Mob. Comput., WiCOM
Monograph title:2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Issue date:2008
Publication year:2008
Article number:4680500
Language:English
ISBN-13:9781424421084
Document type:Conference article (CA)
Conference name:2008 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2008
Conference date:October 12,2008 - October 14,2008
Conference location:Dalian, China
Conference code:74850
Sponsor:Wuhan University, China; Dalian University of Technology, China; IEEE Antennas and Propagation Society; Scientific Research Publishing, USA; IEEE Communications Society
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Do the changes of holding stockholders and Top Managements in listed companies improve its performance? Using the data of listed companies from 2001-2006, we investigated the influence of the changes of holding stockholders and Top Managements toward the performance of listed companies in capital market. We found that: (1) The relation between changes of Top Managements and company performance are close; the relation between changes of holding stockholders and Top Managements are also close. (2) The changes of holding stockholders are related to the poor operational performance before changes. (3) Top Managements in the companies that have changed Top Managements improve the operational performance significantly. © 2008 IEEE.
Number of references:6
Main heading:Management
Controlled terms:Mergers and acquisitions - Merging - Mobile computing - Wireless networks - Wireless telecommunication systems
Uncontrolled terms:Capital markets - Control rights - Enterprise merger - Listed companies - Operational performances - Transferring of holding stockholders - Transferring of top managements performance
Classification code:912.2 Management - 912 Industrial Engineering and Management - 723.2 Data Processing and Image Processing - 723.1 Computer Programming - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 722.3 Data Communication, Equipment and Techniques - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716.3 Radio Systems and Equipment - 716 Telecommunication; Radar, Radio and Television
DOI:10.1109/WiCom.2008.2311
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511482414
Title:Cell viscoelastic characterization using photoacoustic measurement
Authors:Li, Jianghua (1); Tang, Zhilie (1); Xia, Yunfei (1); Lou, Yanfei (1); Li, Guanghua (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, Guangdong 510006, China
Corresponding author:Tang, Z.
(tangzhilie@)
Source title:Journal of Applied Physics
Abbreviated source title:J Appl Phys
Volume:104
Issue:3
Issue date:2008
Publication year:2008
Article number:034702
Language:English
ISSN:00218979
CODEN:JAPIAU
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:Photoacoustic (PA) measurement is noninvasive. We used the PA technique to measure the viscoelasticity of red blood cells (RBCs) to determine whether it could elucidate mechanical characteristics at a cellular level. A single-pulse laser beam was used as the light source to generate a PA signal. A "thin" glass was used as an acoustical impedance medium to form the attenuation signal. From the amplitude attenuation curves of the signals of a control RBC group and some glutaraldehyde-treated RBC groups, we obtained the decay times. As decay time is equal to the viscosity-elasticity ratio, we could obtain the viscoelasticity characteristics of the RBC. The PA technique is a simple, real-time, and noninvasive way to acquire the viscoelastic properties at a cellular level. © 2008 American Institute of Physics.
Number of references:15
Main heading:Power amplifiers
Controlled terms:Acoustic impedance - Aldehydes - Blood - Boundary conditions - Elasticity - Light - Light sources - Lighting - Pulsed laser applications - Viscoelasticity - Viscosity
Uncontrolled terms:Cellular levels - Decay time - Decay times - Glutaraldehyde - Mechanical characteristics - Photoacoustic measurements - Red blood cells - Single-pulse lasers - Visco-elastic properties - Viscoelastic characterization
Classification code:921 Mathematics - 804.1 Organic Compounds - 751.2 Acoustic Properties of Materials - 744.9 Laser Applications - 741.1 Light/Optics - 931.2 Physical Properties of Gases, Liquids and Solids - 713.1 Amplifiers - 707 Illuminating Engineering - 631.1 Fluid Flow, General - 461.2 Biological Materials and Tissue Engineering - 421 Strength of Building Materials; Mechanical Properties - 707.2 Electric Lamps
DOI:10.1063/1.2949261
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611207299
Title:Analysis on the effect of baseline value on the inversion results of cumulant method in PCS
Authors:Liu, Gui-Qiang (0); Yang, Guan-Ling (0); Zhou, Shu-Cang (0); Zeng, Si-Ming (0); Han, Peng (0)
Corresponding author:Liu, G.-Q.
(liougq@.cn)
Corr. author affiliation:School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Source title:Guangdian Gongcheng/Opto-Electronic Engineering
Abbreviated source title:Guangdian Gongcheng
Volume:35
Issue:3
Issue date:March 2008
Publication year:2008
Pages:88-92
Language:Chinese
ISSN:1003501X
CODEN:GUGOEC
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences, Chengdu, Sichuan, 610209, China
Abstract:According to the relation between intensity Autocorrelation Function (ACF) and normalized light field ACF, the effect of different baseline values on the results measured by using Photon Correlation Spectroscopy (PCS) was presented. The cumulant method which was used to inverse the size and polydispersity of nano-particle in PCS was analyzed. Three types of materials with five different sizes were measured by using PCS and the results showed that when the baseline methods were different, the value of baselines and the results of the effective diameter and polydispersity inversed by cumulant method were different, too. The reason was analyzed theoretically. It is pointed out that the autoslope method of acquiring baseline is the appropriate measured method.
Number of references:10
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084411674160
Title:Self-induced fractional Fourier transform and revivable higher-order spatial solitons in strongly nonlocal nonlinear media
Authors:Lu, Daquan (1); Hu, Wei (1); Zheng, Yajian (1); Liang, Yanbin (1); Cao, Longgui (1); Lan, Sheng (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Lu, D.
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:78
Issue:4
Issue date:October 14, 2008
Publication year:2008
Article number:043815
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:The fractional Fourier transform (FRFT) naturally exists in strongly nonlocal nonlinear (SNN) media and the propagation of optical beams in SNN media can be simply regarded as a self-induced FRFT. Through the FRFT technique the evolution of fields in SNN media can be conveniently dealt with, and an arbitrary square-integrable input field presents itself generally as a revivable higher-order spatial soliton which reconstructs its profile periodically after every four Fourier transforms. The self-induced FRFT illuminates the prospects for SNN media in new applications such as continuously tunable nonlinearity-induced FRFT devices. © 2008 The American Physical Society.
Number of references:27
Main heading:Fourier transforms
Controlled terms:Digital signal processing - Mathematical transformations - Mines - Solitons
Uncontrolled terms:Fractional Fourier transforms - Input fields - New applications - Non-linearity - Nonlinear - Nonlocal nonlinear medias - Optical beams - Spatial solitons
Classification code:931.3 Atomic and Molecular Physics - 921.3 Mathematical Transformations - 921.1 Algebra - 723.2 Data Processing and Image Processing - 722.4 Digital Computers and Systems - 716.1 Information Theory and Signal Processing - 502.1 Mine and Quarry Operations
DOI:10.1103/PhysRevA.78.043815
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011136659
Title:Bandgap energies in strain-free Ga1-xInxNyAs1-y/GaAs QWs qws after annealing
Authors:Wen, Yuhua (1); Tang, Jiyu (1); Zhao, Chuanzhen (1); Wu, Liangzhen (1); Kong, Yunting (1); Tang, Lili (1); Liu, Chao (1); Wu, Lifeng (1); Li, Shunfang (1); Chen, Junfang (1)
Author affiliation:(1) College of Physics and Telecommunication, South China Normal University, Guangzhou 510006, China
Corresponding author:Wen, Y.
Source title:Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors
Abbreviated source title:Pan Tao Ti Hsueh Pao
Volume:29
Issue:1
Issue date:January 2008
Publication year:2008
Pages:105-109
Language:Chinese
ISSN:02534177
CODEN:PTTPDZ
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:According to the annealing-induced changes of an N-centered nearest-neighbor (NN) environment in GaxIn1-xNyAs1-y, quaternary alloys, we present a statistical distributing model of the binary bonds in a thermodynamics equilibrium state. Then, the parameter r, the calculated number of NN In atoms per N atom, is introduced into the BAC empirical model. Finally, bandgap energies in strain-free Ga1-xInxNyAs1-y/GaAs QWs are calculated by discussing the boundary conditions for the electron wavefunction in the BAC model.
Number of references:17
Main heading:Semiconductor quantum wells
Controlled terms:Annealing - Energy gap - Semiconducting gallium arsenide - Semiconducting gallium compounds
Uncontrolled terms:Bandgap energy - GaInNAs
Classification code:537.1 Heat Treatment Processes - 712.1 Semiconducting Materials - 921 Mathematics - 931.3 Atomic and Molecular Physics
Treatment:Theoretical (THR)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082711351457
Title:A differential phase shift key distribution QKD system combing with efficient BB84 scheme
Authors:Chen, Xia (1); Wang, Fa-Qiang (1); Lu, Yi-Qun (1); Zhao, Feng (1); Li, Ming-Ming (1); Liang, Rui-Sheng (1); Liu, Song-Hao (1)
Author affiliation:(1) Lab. of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Chen, X.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:5
Issue date:May 2008
Publication year:2008
Pages:1052-1056
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:A novel phase modulated quantum key distribution scheme with high security, which is combined differential phase shift quantum key distribution (DPS-QKD) with efficient BB84 scheme, is proposed. Alice chooses phase in {0, π/2, π, 3π/2} randomly to modulate the phase of signal pulses and Bob do it in {0, π/2}. The system is designed to demonstrate its feasibility, which features perfect stability with a QBER less than 5% during 85-km fiber transmission.
Number of references:15
Main heading:Quantum cryptography
Controlled terms:Fiber optics - Phase modulation - Phase shift - Quantum chemistry - Sensor networks - System stability
Uncontrolled terms:Differential Phase-shift keying - Differential-phase-shift quantum key distribution - Efficient BB84 scheme - Fiber transmissions - Phase coding - Quantum key distribution - Quantum key distributions - Signal pulses
Classification code:961 Systems Science - 801.4 Physical Chemistry - 741.1.2 Fiber Optics - 731.1 Control Systems - 716 Telecommunication; Radar, Radio and Television - 713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers - 703.1 Electric Networks
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111429511
Title:Preparation and performance analysis of PE-supported P(AN-co-MMA) gel polymer electrolyte for lithium ion battery application
Authors:Rao, M.M. (1); Liu, J.S. (2); Li, W.S. (1); Liang, Y. (1); Zhou, D.Y. (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China; (2) College of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China; (3) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China
Corresponding author:Li, W.S.
(liwsh@scnu.)
Source title:Journal of Membrane Science
Abbreviated source title:J. Membr. Sci.
Volume:322
Issue:2
Issue date:September 15, 2008
Publication year:2008
Pages:314-319
Language:English
ISSN:03767388
CODEN:JMESDO
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Copolymer, poly(acrylonitrile-co-methyl methacrylate) (P(AN-co-MMA)), was synthesized by solution polymerization with different mole ratios of monomers, acrylonitrile (AN) and methyl methacrylate (MMA). Polyethylene (PE) supported copolymer and gel polymer electrolyte (GPE) were prepared with this copolymer and their performances were characterized with FTIR, TGA, SEM, and electrochemical methods. It is found that the GPE using the PE-supported copolymer with AN to MMA = 4:1 (mole) exhibits an ionic conductivity of 2.06 × 10-3 S cm-1 at room temperature. The copolymer is stable up to 270 °C. The PE-supported copolymer shows a cross-linked porous structure and has 150 wt% of electrolyte uptake. The GPE is compatible with anode and cathode of lithium ion battery at high voltage and its electrochemical window is 5.5 V (vs. Li/Li+). With the application of the PE-supported GPE in lithium ion battery, the battery shows its good rate and initial discharge capacity and cyclic stability. © 2008 Elsevier B.V. All rights reserved.
Number of references:27
Main heading:Acrylic monomers
Controlled terms:Alkali metals - Chemical reactions - Chemicals - Colloids - Copolymerization - Electric conductivity - Electrolysis - Electrolytes - Esters - Fourier transform infrared spectroscopy - Gelation - Gels - Lithium - Military seaplanes - Monomers - Plastic products - Polyelectrolytes - Polymers - Seaplanes
Uncontrolled terms:(ethylene vinyl alcohol) copolymers - Acrylonitrile (AN) - Electro chemical method - Gel polymer electrolyte (GPE) - Lithium ion battery (LIB) - methyl methacrylate (PS PMMA) - mole ratios - performance analyses - Polyethylene (PE) - Solution polymerization
Classification code:803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 802.3 Chemical Operations - 815.1 Polymeric Materials - 815.2 Polymerization - 817.1 Polymer Products - 815.1.1 Organic Polymers - 802.2 Chemical Reactions - 549.1 Alkali Metals - 652.1 Aircraft, General - 652.1.2 Military Aircraft - 542.4 Lithium and Alloys - 701.1 Electricity: Basic Concepts and Phenomena - 801.3 Colloid Chemistry - 801.4.1 Electrochemistry - 801 Chemistry
DOI:10.1016/j.memsci.2008.06.004
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081711222385
Title:Self-induced transparency in colloidal liquids by Z -scan-based optical trapping
Authors:Dai, Qiao-Feng (1); Liu, Hai-Ying (1); Liu, Jin (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Yang, Xiang-Bo (1); Liu, Song-Hao (1); Lan, Sheng (1); Gopal, Achanta Venu (2); Trofimov, V.A. (3)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong 510006, China; (2) DCMP and MS, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India; (3) Department of Computational Mathematics and Cybenetics, M. V. Lomonosov Moscow State University, Moscow 119992, Russia
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:92
Issue:15
Issue date:2008
Publication year:2008
Article number:153111
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:We demonstrated a transition from a disordered to an ordered state in a colloidal liquid by utilizing Z -scan-based optical trapping. The Z -scan process plays a role of gradually and continuously narrowing and deepening the optical potential well. When the trapping power was increased above a certain level, a self-induced transparency occurs, leading to a significant enhancement in transmission. The dynamic transition was confirmed by monitoring the diffraction pattern of the trapping region. © 2008 American Institute of Physics.
Number of references:17
Main heading:Colloids
Controlled terms:Diffraction patterns - Dynamic programming - Electron traps - Phase transitions - Scanning
Uncontrolled terms:Colloidal liquids - Dynamic transition - Optical trapping
Classification code:711 Electromagnetic Waves - 741.3 Optical Devices and Systems - 801.3 Colloid Chemistry - 801.4 Physical Chemistry - 921.5 Optimization Techniques - 931.3 Atomic and Molecular Physics
Treatment:Theoretical (THR)
DOI:10.1063/1.2903712
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084011616021
Title:The web service matching based on generalized list concept lattice
Authors:Chen, Hongying (1)
Author affiliation:(1) Institute of Computer science, South China Normal University, GuangZhou 510631, China
Corresponding author:Chen, H.
(chenhy01@)
Source title:Proceedings of the 27th Chinese Control Conference, CCC
Abbreviated source title:Proc. Chin. Control. Conf., CCC
Monograph title:Proceedings of the 27th Chinese Control Conference, CCC
Issue date:2008
Publication year:2008
Pages:212-214
Article number:4605098
Language:Chinese
ISBN-13:9787900719706
Document type:Conference article (CA)
Conference name:27th Chinese Control Conference, CCC
Conference date:July 16,2008 - July 18,2008
Conference location:Kunming, Yunnan, China
Conference code:73759
Sponsor:Technical Committee on Control Theory; Chinese Association of Automation Kunming Univ. Sci. Technol.; Yunnan Division; Chinese Association of Automation
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:When we search web service, we often get many results that we don't satisfy, or too less results to be choose from. This papers uses generalized list concept lattice to realize web service matching, and it explains detailedly the princple. Experiments show that this method can get much better results than matching based on keyword and normal concept lattice.
Number of references:8
Main heading:World Wide Web
Controlled terms:Information services - Web services
Uncontrolled terms:Concept lattice - Concept lattices - Generalized list - Ontology - Vector space
Classification code:716 Telecommunication; Radar, Radio and Television - 723 Computer Software, Data Handling and Applications - 903.4 Information Services
DOI:10.1109/CHICC.2008.4605098
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081311170224
Title:Wear performance of Fe-based alloy coating on the 40Cr steel treated by laser cladding
Authors:Song, Jie (1); Zhang, Qing-Mao (1); Lin, Xiao-Cong (2); Liao, Jian-Hong (1)
Author affiliation:(1) Laboratory of Laser Processing Technology, South China Normal University, Guangzhou 510631, China; (2) Guangzhou Riton Laser Co. Ltd., Guangzhou 510631, China
Corresponding author:Song, J.
(jiesong68@)
Source title:Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams
Abbreviated source title:Qiangjiguang Yu Lizishu
Volume:20
Issue:1
Issue date:January 2008
Publication year:2008
Pages:21-25
Language:Chinese
ISSN:10014322
CODEN:QYLIEL
Document type:Journal article (JA)
Publisher:Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China
Abstract:In order to investigate the tribological performance of laser clad coating about die steel, laser cladding techniques were adopted with Fe alloy powders. Tests were carried out using laser clad layers as upper samples and GCr15 steel as lower samples with HT-500 abrasion tester. The results were compared with 40Cr's. The morphologies of wear scars were observed with optical microscopy. The tests show that the friction coefficient of 40Cr is bigger than the clad coating's with the load less than 250 g. The friction coefficient reduces with load increasing when the load is less than 300 g. The 40Cr's friction coefficient is (0.563-0.589) and increases with time when the load is 300 g. The friction coefficient of laser is (0.431-0.457) and clad layer decreases under the same condition. The performance of laser cladding becomes worse when the load is 500 g with the increase of wear time. The friction coefficient is 75% higher than that of 300 g and the wear depth increases by 47 times at the same time.
Number of references:10
Main heading:Laser cladding
Controlled terms:Friction - Iron alloys - Morphology - Optical microscopy - Protective coatings - Steel - Wear of materials
Uncontrolled terms:Friction coefficient - Iron based alloy coating - Wear performance
Classification code:951 Materials Science - 931.2 Physical Properties of Gases, Liquids and Solids - 813.2 Coating Materials - 813.1 Coating Techniques - 744.9 Laser Applications - 545.3 Steel - 545.2 Iron Alloys
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411180007
Title:An image segmentation approach based on chaotic ant colony algorithms
Authors:Pan, Zhongliang (1); Chen, Ling (1)
Author affiliation:(1) School of Physics and Telecommunications Engineering, South China Normal University, Guangzhou 510006, Guangdong, China
Corresponding author:Pan, Z.
(panz@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6833
Monograph title:Electronic Imaging and Multimedia Technology V
Issue date:2008
Publication year:2008
Article number:683318
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470089
Document type:Conference article (CA)
Conference name:Electronic Imaging and Multimedia Technology V
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71661
Sponsor:Society of Photo-Optical Instrumentation Engineers (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Image segmentation is to partition an image into meaningful regions. An image segmentation approach based on chaotic ant colony algorithm is presented in this paper. The approach performs the image segmentation by selecting the optimal threshold values, where the multi-threshold values are used. First of all, an entropy function corresponding to an image is defined. The optimal threshold values are obtained by making the entropy function reach the maximal value. Secondly, an approach based on ant colony algorithm is presented for the computation of the optimal thresholds. In order to improve the computation performance of ant colony algorithms, for example, to avoid the algorithm search being trapped in local optimum, we use chaotic approach to find a better solution whenever all the ants have finished the operations. The chaotic approach searching the space around the ant which is the best so far. Besides, the initial solutions are generated by chaotic approach, this improves the quality of initial ants. The experimental results show that the approach proposed in this paper can get the near optimal threshold.
Number of references:18
Main heading:Image segmentation
Controlled terms:Algorithms - Chaotic systems - Computation theory
Uncontrolled terms:Chaotic ant colony algorithm - Optimal threshold values
Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.2 Data Processing and Image Processing - 961 Systems Science
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.756538
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090311861312
Title:Reflection properties of the 'silvery glaze' on the green glaze of Chinese traditional potteries
Authors:Liang, Peilin (1); Yang, Xiangbo (1); Hu, Wei (2); Wu, Lijun (2)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Yang, X.
(xbyang@scnu.)
Source title:Journal of Optics A: Pure and Applied Optics
Abbreviated source title:J Opt A Pure Appl Opt
Volume:10
Issue:11
Issue date:November 1, 2008
Publication year:2008
Article number:115004
Language:English
ISSN:14644258
E-ISSN:17413567
CODEN:JOAOF8
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:Based on experimental data we propose an optical multilayer model to investigate the 'silvery glaze' (SG) on the surface of the green glaze (GG) of Chinese traditional potteries (CTPs) and calculate the reflective and average reflective spectra for visible and infrared light. It is found that, by means of this model, the color of silvery white of SG can be explained easily and the average reflectivity (AR) increases monotonously with the increase of the periodicity for the all-wave and infrared light. This property could be used as a new non-destructive method to identify precisely the age of CTPs. © 2008 IOP Publishing Ltd.
Number of references:9
Main heading:Glazes
Controlled terms:Density (specific gravity) - Infrared spectroscopy - Light reflection - Optical multilayers - Reflection
Uncontrolled terms:Chinese traditional pottery - Destructive methods - Experimental datums - Green glaze - Infrared lights - Reflection properties - Reflective spectrum - Silvery glaze
Classification code:941.4 Optical Variables Measurements - 931.2 Physical Properties of Gases, Liquids and Solids - 813.2 Coating Materials - 812 Ceramics, Refractories and Glass - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 711 Electromagnetic Waves
DOI:10.1088/1464-4258/10/11/115004
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090311858076
Title:Manipulation of microparticles in colloidal liquids by Z -scan-based optical trapping
Authors:Liu, Jin (1); Dai, Qiao-Feng (1); Feng, Tian-Hua (1); Liu, Hai-Ying (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Liu, Song-Hao (1); Lan, Sheng (1); Gopal, Achanta Venu (2); Trofimov, Vyacheslav A. (3)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong 510006, China; (2) DCMP and MS, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India; (3) Department of Computational Mathematics and Cybernetics, M. V. Lomonosov Moscow State University, Moscow 119992, Russia
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Journal of Applied Physics
Abbreviated source title:J Appl Phys
Volume:104
Issue:11
Issue date:2008
Publication year:2008
Article number:114308
Language:English
ISSN:00218979
CODEN:JAPIAU
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:Manipulation of microparticles in colloidal liquids by using Z -scan-based optical trapping is systematically investigated. A physical model for the creation and annihilation of ordered structures in Z -scan-based optical trapping is presented theoretically and verified experimentally. Disordered, ordered, and intermediate states appearing in Z -scan trapping experiments are discussed and the conditions for realizing phase transition and observing self-induced transparency are clarified. We experimentally demonstrate the high quality and good stability of the formed structures, the sequential trapping of individual microparticles, and the multiple trapping processes. The dependence of the quality of the formed structures on trapping power, scanning speed, and the size and material of microparticles are identified. © 2008 American Institute of Physics.
Number of references:30
Main heading:Model structures
Controlled terms:Clarification - Liquids - Phase transitions - Power quality
Uncontrolled terms:Colloidal liquids - Creation and annihilations - Good stabilities - High qualities - Induced transparencies - Intermediate states - Micro particles - Multiple trapping - Optical- - Ordered structures - Physical models - Scanning speeds
Classification code:822.2 Food Processing Operations - 802.3 Chemical Operations - 801.4 Physical Chemistry - 931.2 Physical Properties of Gases, Liquids and Solids - 706.1.2 Electric Power Distribution - 531.2 Metallography - 408 Structural Design - 641.1 Thermodynamics
DOI:10.1063/1.3039454
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090311859993
Title:Study of van Gieson's picrofuchsin staining on second-harmonic generation in type I collagen
Authors:Liu, Hanping (1); Zhuang, Zhengfei (1); Zhao, Lingling (2); Qu, Junle (2); Deng, Xiaoyuan (1)
Author affiliation:(1) School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510700, China; (2) Key Laboratory of Optoelectronic Devices and Systems, Institute of Optoelectronics, Shenzhen University, Shenzhen 518060, China
Corresponding author:Liu, H.
Source title:Chinese Optics Letters
Abbreviated source title:Chin. Opt. Lett.
Volume:6
Issue:12
Issue date:December 2008
Publication year:2008
Pages:882-885
Language:English
ISSN:16717694
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:Second-harmonic generation (SHG) microscopy is a recently developed nonlinear optical imaging modality for imaging tissue structures with submicron resolution and is a potent tool for visualizing pathological effects of diseases. In this letter, we present our investigation on the influence of van Gieson's (VG) alcoholic picrofuchsin staining on SHG in type I collagen (from tendon-rich C57BL/6). Multi-channel imaging and spectra analysis show that the strong SHG signal produced in fresh collagen type I fiber has been greatly suppressed after VG staining, which indicates that staining may induce the structural or characteristic changes of SHG-dependent crystal formed by collagen constituents, such as glycine, proline, and hydroxyproline. © 2008 Chinese Optics Letters.
Number of references:21
Main heading:Harmonic generation
Controlled terms:Collagen - Optical microscopy - Tendons
Uncontrolled terms:Imaging tissues - Nonlinear optical imaging - Pathological effects - Second-harmonic generations - Shg signals - Spectra analysis - Submicron resolutions
Classification code:814 Leather and Tanning - 804.1 Organic Compounds - 751.1 Acoustic Waves - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 713.2 Oscillators - 461.2 Biological Materials and Tissue Engineering
DOI:10.3788/COL20080612.0882
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011780323
Title:Cost-effective and high-resolution wavelength interrogation unit using an incomplete asymmetric arrayed waveguide grating
Authors:Huang, Jingtang (1); Huang, Xuguang (1); Zhao, Huawei (1)
Author affiliation:(1) Laboratory of Photonics Information Technology, South China Normal University, Guangzhou, Guangdong, China
Corresponding author:Huang, X.
(hjt1214@)
Source title:Journal of Modern Optics
Abbreviated source title:J. Mod. Opt.
Volume:55
Issue:18
Issue date:October 2008
Publication year:2008
Pages:2981-2988
Language:English
ISSN:09500340
E-ISSN:13623044
CODEN:JMOPEW
Document type:Journal article (JA)
Publisher:Taylor and Francis Ltd., 4 Park Square, Milton Park, Abingdon, Oxfordshire, OX14 4RN, United Kingdom
Abstract:This paper presents a wavelength interrogation unit using an incomplete asymmetric arrayed waveguide grating (AWG) without output waveguides. The incomplete asymmetric AWG converts the wavelengths of the incident light into a spatial intensity distribution. The center of the spatial distribution is determined by a one-dimensional position sensitive detector (PSD). The simulation results show that wavelength shifts can be precisely interrogated by the device with a wavelength resolution of 3.5 pm. The device can be applied to the interrogation of fiber Bragg grating (FBG) temperature sensors with the temperature resolution of 0.3°C.
Number of references:24
Main heading:Waveguides
Controlled terms:Arrayed waveguide gratings - Fiber Bragg gratings - Fiber optic components - Fiber optic sensors - Optical waveguides - Sensors - Waveform analysis
Uncontrolled terms:Arrayed waveguides - Dimensional positions - Fiber Bragg grating sensor - High resolutions - Incident lights - Incomplete asymmetric arrayed waveguide grating - Output waveguides - Position sensitive detector - Simulation results - Spatial distributions - Spatial intensity distributions - Temperature resolutions - Wavelength interrogations - Wavelength resolutions - Wavelength shifts
Classification code:921 Mathematics - 801 Chemistry - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 732.2 Control Instrumentation - 717.2 Optical Communication Equipment - 714.3 Waveguides
DOI:10.1080/09500340802283271
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084911764433
Title:The Drazin inverse of bounded operators with commutativity up to a factor
Authors:Deng, Chun Yuan (1)
Author affiliation:(1) College of Mathematics Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Deng, C.Y.
(cydeng@scnu.)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:206
Issue:2
Issue date:December 15, 2008
Publication year:2008
Pages:695-703
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:We explore the Drazin inverse of bounded operators with commutativity up to a factor, PQ = λ QP, in a Banach space. Conditions on Drazin invertibility are formulated and shown to depend on spectral properties of the operators involved. We also present a result concerning the more general problem of commutativity up to a related operator factor, PQ = PQP. Under the condition of commutativity up to a factor PQ = λ QP (resp. PQ = PQP), we give explicit representations of the Drazin inverse (P - Q)D (resp. (P + Q)D) in term of P, PD, Q and QD. © 2008 Elsevier Inc. All rights reserved.
Number of references:31
Main heading:Theorem proving
Controlled terms:Banach spaces - Topology
Uncontrolled terms:Bounded operators - Commutation relation - Commutativity - Commutator - Drazin inverse - Drazin inverses - Explicit representations - Invertibility - Spectral properties - Spectrum
Classification code:703.1 Electric Networks - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.4 Artificial Intelligence - 921 Mathematics - 921.1 Algebra - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
DOI:10.1016/j.amc.2008.09.027
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081211162364
Title:First principles study of optical properties of wurtzite ZnO with Mn-doping
Authors:Chen, Kun (0); Fan, Guang-Han (0); Zhang, Yong (0)
Corresponding author:Chen, K.
(chk0521@)
Corr. author affiliation:Institute of Optoelectronic Material and Technology, South China Normal University, Guangzhou 501631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:2
Issue date:February 2008
Publication year:2008
Pages:1054-1060
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The electronic structures of pure and Mn-doped wurtzite ZnO have been calculated by first-principles ultra-soft pseudo-potential approach of the plane wave based upon the density functional theory, and the structure change, band structure, density of state and the difference charge density were studied. The calculated results were revealed that Mn-doping changed the band gap of the films, which increased with the increase of the Mn content. Moreover, the absorbence in strong UV absorption band of ZnO increased too.
Number of references:27
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082411313508
Title:First principles study of In-N codoped ZnO
Authors:Chen, Kun (0); Fan, Guang-Han (0); Zhang, Yong (0); Ding, Shao-Feng (0)
Corresponding author:Chen, K.
(gfan@scnu.)
Corr. author affiliation:Institute of Optoelectronic Material and Technology, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:5
Issue date:May 2008
Publication year:2008
Pages:3138-3147
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The electronic structure of pure N-doped and In-N codoped wurtzite ZnO has been calculated by using first-principles ultra-soft pseudo-potential approach of the plane wave based upon the density functional theory, and the structure change, bandstructure, density of states, difference charge density and the influence of In-N codoped wurtzite ZnO by H atom were studied. The calculation results revealed that N-doped wurtzite ZnO caused formation of deep N acceptor levels in the band gap and the carriers (hole) were localized near the top of the valence band. But the codoping calculation revealed that the acceptor level shifted toward the lower-energy region and shallow acceptor level were fomed, which was broadened and showed delocalizing characters, owing to which the concentration of impurities and the stability of the system were enhanced. Our conclusions accord with the results of experiments, which confirms the fact that In-N codoping in wurtzite ZnO helps the formation of p-type ZnO. In addition, it was also pointed out that the presence of H atom reduces the efficiency of doping markelly, which should be avoided as much as possible.
Number of references:39
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081211162337
Title:Entanglement transfer via cross-Kerr nonlinearity
Authors:Yang, Jian (0); Ren, Min (0); Yu, Ya-Fei (0); Zhang, Zhi-Ming (0); Liu, Song-Hao (0)
Corresponding author:Yang, J.
Corr. author affiliation:Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:2
Issue date:February 2008
Publication year:2008
Pages:887-891
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:We propose a scheme for realizing entanglement transfer based on the cross-Kerr nonlinear interaction between field-modes. By using this scheme the entanglement can be transferred from the field-states with discrete variables to the field-states with continuous variables. By suitably choosing the amplitude of the initial coherent, states, we can obtain the maximum entangled coherent states.
Number of references:15
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011140319
Title:The ultrasonic electropolymerization of an 5-[o-(4-bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) film electrode and its electrocatalytic properties to dopamine oxidation in aqueous solution
Authors:Ye, Fang (1); Nan, Junmin (1); Wang, Lishi (2); Song, Yan (1); Kim, Kuang-Bum (3)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China; (2) College of Chemical Science, South China University of Technology, Guangzhou, 510640, China; (3) Department of Metallurgical Engineering, Yonsei University, Seodaemoon-gu, Seoul, 120-749, Korea, Republic of
Corresponding author:Nan, J.
(jmnan@scnu.)
Source title:Electrochimica Acta
Abbreviated source title:Electrochim Acta
Volume:53
Issue:12
Issue date:May 1, 2008
Publication year:2008
Pages:4156-4160
Language:English
ISSN:00134686
CODEN:ELCAAV
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:5-[o-(4-Bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) was electropolymerized on a glassy carbon electrode (GCE), and the electrocatalytic properties of the prepared film electrode response to dopamine (DA) oxidation were investigated. A stable o-BrPETPP film was formed on the GCE under ultrasonic irradiation through a potentiodynamic process in 0.1 M H2SO4 between -1.1 V and 2.2 V versus a saturated calomel electrode (SCE) at a scan rate of 0.1 V s-1. The film electrode showed high selectivity for DA in the presence of ascorbic acid (AA) and uric acid (UA), and a 6-fold greater sensitivity to DA than that of the bare GCE. In the 0.05 mol L-1 phosphate buffer (pH 6.0), there was a linear relationship between the oxidation current and the concentration of DA solution in the range of 5 × 10-7 mol L-1 to 3 × 10-5 mol L-1. The electrode had a detection limit of 6.0 × 10-8 mol L-1(S/N = 3) when the differential pulse voltammetric (DPV) method was used. In addition, the charge transfer rate constant k = 0.0703 cm s-1, the transfer coefficient α = 0.709, the electron number involved in the rate determining step nα = 0.952, and the diffusion coefficient Do = 3.54 10-5 cm2 s-1 were determined. The o-BrPETPP film electrode provides high stability, sensitivity, and selectivity for DA oxidation. © 2008 Elsevier Ltd. All rights reserved.
Number of references:24
Main heading:Electrochemical electrodes
Controlled terms:Amines - Electrocatalysts - Electropolymerization - Oxidation - Porphyrins - Ultrasonic applications
Uncontrolled terms:Dopamine - Electrocatalytic properties - Modified film electrodes - o-BrPETPP - Ultrasonic electropolymerization
Classification code:753.3 Ultrasonic Applications - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds - 815.2 Polymerization
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.electacta.2007.12.063
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611520670
Title:Pathological changes of human bladder mucosa/submucosa tissues induced changes in diffuse reflection spectra of tissues in vitro
Authors:Wei, Huajiang (1); Guo, Zhouyi (1); Xie, Shusen (2); Wu, Guoyong (3); Lu, Jianjun (3); Chen, Xuemei (4); He, Bohua (5)
Author affiliation:(1) Key Laboratory of Laser Life Science of Ministry of Education, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Key Laboratory of Optoelectronic Science and Technology for Medicine, Fujian Normal University, Fuzhou 350007, China; (3) Department of Cardio-Thoracic, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China; (4) Department of Ophthalmology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China; (5) Department of Surgery, Guangdong College of Pharmacy, Guangzhou 510224, China
Corresponding author:Wei, H.
(weihj@scnu.)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:28
Issue:5
Issue date:May 2008
Publication year:2008
Pages:943-948
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:Diffuse reflection spectra and their differences of normal human bladder and superficial human bladder cancer mucosa/submucosa tissues were studied in the spectral range from 300nm to 900nm in vitro. Diffuse reflection spectra of tissues were measured with a spectrophotometer with an integrating sphere attachment. The results of measurement show that diffuse reflection of normal bladder mucosa/submucosa tissue at each wavelength is obviously higher than that of superficial bladder cancer mucosa/submucosa tissue at the corresponding wavelength. The peaks in diffuse reflection spectra for normal bladder mucosa/submucosa tissues were 52.4% at 370nm, 60.7% at 520nm, 56.1% at 550nm and 75.5% at 660nm, respectively, while the peaks in diffuse reflection spectra for superficial bladder cancer mucosa/submucosa tissues were 43.7% at 320 nm, 33.4% at 520nm, 30.6% at 550nm and 70.2% at 660nm, respectively. There was a peak in diffuse reflection spectra for normal bladder mucosa/submucosa tissues at 370nm, and there was not a peak for superficial bladder cancer mucosa/submucosa tissues at 370nm. There was a peak in diffuse reflection spectra for superficial bladder cancer mucosa/submucosa tissues at 320nm and there was not a peak for normal bladder mucosa/submucosa tissues at 320nm. Pathological changes of bladder mucosa/submucosa tissues induce the decrease of the peak values in diffuse reflection spectra for tissues of 45.0% at 520nm, 45.5% at 550nm, and 7.02% at 660nm. The results show that pathological changes of bladder mucosa/submucosa tissues induce changes in the component and structure of tissues, and especially quantitative changes in oxyhemoglobin and de-oxyhemoglobin of tissues obviously.
Number of references:20
Main heading:Tissue
Controlled terms:Electromagnetic waves - Hemoglobin - Reflection
Uncontrolled terms:Bladder mucosa/submucosa tissue - Diffuse reflection spectra - Integrating-sphere accessory - Medical optics and biotechnology - Superficial bladder cancer mucosa/submucosa tissue - UV-visible spectrophotometer
Classification code:461.2 Biological Materials and Tissue Engineering - 711 Electromagnetic Waves - 741.1 Light/Optics - 804 Chemical Products Generally
DOI:10.3788/AOS20082805.0943
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084811734818
Title:First-principles study of interphase Ni3Sn in Sn - Ni alloy for anode of lithium ion battery
Authors:Hou, Xian-Hua (1); Hu, She-Jun (1); Li, Wei-Shan (3); Ru, Qiang (1); Yu, Hong-Wen (1); Huang, Zhao-Wen (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) Department of Mathematics and Physics, Wuyi University, Jiangmen 529020, China; (3) Department of Chemistry, South China Normal University, Guangzhou 510006, China
Corresponding author:Hou, X.-H.
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:17
Issue:9
Issue date:September 1, 2008
Publication year:2008
Pages:3422-3427
Language:English
ISSN:16741056
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:This paper investigates the mechanism of Li insertion into interphase Ni3Sn in Ni - Sn alloy for the anode of lithium ion battery by means of the first-principles plane-wave pseudopotential. Compared with other phases, it is found that the Ni3Sn has larger relative expansion ratio and lower electrochemical potential, with its specific plateaus voltage around 0.3 eV when lithium atoms are filled in all octahedral interstitial sites, and the relative expansion ratio increasing dramatically when the lithiated phase transits from octahedral interstitial sites to tetrahedral interstitial sites. So this phase is a devastating phase for whole alloy electrode materials. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:25
Main heading:Tin
Controlled terms:Alloys - Anodes - Electronic structure - Ions - Lithium - Lithium alloys - Lithium batteries - Nickel - Nickel alloys - Solid state physics - Tin alloys
Uncontrolled terms:Alloy electrodes - Electrochemical potentials - Expansion ratios - First-principle - Interstitial sites - Li insertions - Lithium atoms - Lithium ion batteries - Lithium ion battery - Octahedral interstitial sites - Sn alloys - Sn-Ni alloy
Classification code:704.1 Electric Components - 714.1 Electron Tubes - 801 Chemistry - 933.1.1 Crystal Lattice - 802.1 Chemical Plants and Equipment - 931.3 Atomic and Molecular Physics - 933 Solid State Physics - 931.1 Mechanics - 702.1.1 Primary Batteries - 701.1 Electricity: Basic Concepts and Phenomena - 531.1 Metallurgy - 542.4 Lithium and Alloys - 546.2 Tin and Alloys - 548.1 Nickel - 548.2 Nickel Alloys - 549.1 Alkali Metals
DOI:10.1088/1674-1056/17/9/046
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011140394
Title:The characterizations of optimal solution set in programming problem under inclusion constrains
Authors:Xu, Qingzhen (1); Wu, Xianping (2)
Author affiliation:(1) School of Computer Science, South China Normal University, Guangzhou, 510631, China; (2) Department of Mathematics, GuangDong Pharmaceutical University, Guangzhou, 510006 Guangdong, China
Corresponding author:Xu, Q.
(xqz1997@)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:198
Issue:1
Issue date:April 15, 2008
Publication year:2008
Pages:296-304
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:The characterizations of the solution set in extremal problem under inclusion constrains: (P)(min f (x); s.t. x ∈ C, 0 ∈ F (x))is considered in this paper. When f is continuously convex and F is a set-valued map with convex graph, the Lagrange function of (P) is proved to be a constant on the solution set, and this property is then used to derive various simple Lagrange mulitiplier-based characterizations of the solution set of (P). © 2007 Elsevier Inc. All rights reserved.
Number of references:7
Main heading:Mathematical programming
Controlled terms:Constrained optimization - Lagrange multipliers - Set theory
Uncontrolled terms:Convex graph - Inclusion constrains - Solution sets - Subgradients - Support functions
Classification code:723.1 Computer Programming - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 961 Systems Science
Treatment:Theoretical (THR)
DOI:10.1016/j.amc.2007.08.034
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711092639
Title:Comparative study of MRI and photoacoustic imaging on brain blood perfusion function of rat/mouse
Authors:Zhou, Quan (1); Yang, Shihua (1); Chen, WenLi (3); Dong, Yang (2); Huang, Li (2)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) First Affiliated Hospital, Jinan University, Medical Imaging Center, Guangzhou 510630, China; (3) College of Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Zhou, Q.
(tzq@jnu.)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1083-1088
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:The aim of this work is to assess the cerebrovascular reserve capacity (CVRC) by MR PWI and photoacoustic brain imaging with "ACZ" tolerance test in mouse and rat, and to compare their role in evaluating the CVRC. Experimental animals included 2 groups: Wistar-Kyoto rats (WKY) (12-week-old, 235-265g) were assessed by MRI and BALB/c mice (4-week-old, 25-35g body weight) were assessed by our photoacoustic imaging system. On photoacoustic imaging, the diameter of the vascular in the superficial layer of the mouse cortex were measured and compared between the resting and acetazolamide (Acz)-activated mice, which reflected cerebral blood flow (CBF) without blood sampling. MR PWI was performed respectively before and after acetazolamide administrated orally on a clinical 1.5 Tesla GE Signa MR fx/i whole-body MR system. The region of interest (ROI) was chosen in the bilateral frontal lobe to measure the value of rCBV, rCBF and MTT. The results show that there was statistical difference between the resting and acetazolamide (Acz)-activated animals in the values of the diameter of the vascular in the superficial layer of the mouse cortex by photoacoustic imaging and in the values of rCBV and rCBF (P>0.05) of the rat by MRI. It was concluded that the method of PWI and photoacoustic imaging combined with the "ACZ stress test" can be used to evaluate the CVRC by measuring values of rCBV and rCBF and diameter of the vascular, respectively.
Number of references:14
Main heading:Magnetic resonance imaging
Controlled terms:Blood - Image processing - Imaging systems - Medical imaging - Photoacoustic effect
Uncontrolled terms:Cerebrovascular reserve capacity (CVRC) - Mouse cortex - Perfusion-weighted imaging (PWI) - Superficial layer
Classification code:751.1 Acoustic Waves - 746 Imaging Techniques - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 701.2 Magnetism: Basic Concepts and Phenomena - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering
Treatment:Theoretical (THR); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411180871
Title:Active packing method for blue light-emitting diodes with photosensitive polymerization: Formation of self-focusing encapsulates
Authors:Wang, Hao (1); Ryu, Jae-Hyoung (3); Lee, Kyu-Seung (2); Tan, Chun Hua (1); Jin, Lihua (2); Li, Songmei (2); Hong, Chang-Hee (3); Cho, Yong-Hoon (2); Liu, Songhao (1)
Author affiliation:(1) School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China; (2) Department of Physics, Institute for Basic Science Research, Chungbuk National University, Cheongju 361-763, Korea, Republic of; (3) Opto Electronics Laboratory, Department of Semiconductor Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea, Republic of
Corresponding author:Wang, H.
(wanghao@scnu.)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:16
Issue:6
Issue date:March 17, 2008
Publication year:2008
Pages:3680-3685
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:A novel light-emitting diode (LED) packaging method, named the active packaging (AP) method, is presented in this paper. In this method, during the LED packaging process, the light emitted from a GaN LED chip itself is employed to package the LED encapsulant, thereby eliminating the need to utilize a mold. Current injection into a bare LED chip, triggers a photosensitive epoxy to polymerize, leading to the formation of mushroom lamp cap on the LED chip. The emission properties of LEDs fabricated by this method, including their emission beam profiles and light outputs, were characterized. The results showed that a self-focusing effect happened with the addition of an epoxy on the chip. The simulation demonstrated that the geometry the encapsulant controlled the beam pattern of emission. Further, the self-focusing effect was believed to be caused by the combination of the threshold energy of epoxy polymerization, the beam pattern and the power output of the LED chip. © 2008 Optical Society of America.
Number of references:9
Main heading:Light emitting diodes
Controlled terms:Charge injection - Encapsulation - Gallium nitride - Light emission - Photopolymerization - Trigger circuits
Uncontrolled terms:Active packing methods - Epoxy polymerization - Self focusing encapsulates
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 712.1.2 Compound Semiconducting Materials - 713.5 Other Electronic Circuits - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 815.2 Polymerization
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1364/OE.16.003680
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516638
Title:Merging of omnidirectional defect modes in one-dimensional photonic crystals with a single-negative material defect
Authors:Chen, Yihang (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Chen, Y.
(kallenmail@)
Source title:Journal of the Optical Society of America B: Optical Physics
Abbreviated source title:J Opt Soc Am B
Volume:25
Issue:6
Issue date:June 2008
Publication year:2008
Pages:972-975
Language:English
ISSN:07403224
CODEN:JOBPDE
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:Merging omnidirectional defect modes are found in one-dimensional photonic crystals composed of periodic single-negative-permittivity and single-negative-permeability media layers and a single-negative defect. By increasing the defect size or the thickness ratio of the two periodic layers, two defect modes shift to each other from the upper and lower frequency side of the forbidden gap, respectively, then merge at the midfrequency of the gap. Merging conditions for such defect modes are given. These defect modes are insensitive to the incident angle. Moreover, the electric fields at the central frequency of the bandgap could be designed to be strongly localized at just one interface between the defect and the periodic layers in the photonic crystal with low transmission. © 2008 Optical Society of America.
Number of references:15
Main heading:Photonic crystals
Controlled terms:Crystal atomic structure - Crystallography - Crystals - Defects - Electric fields - Epitaxial growth - Gallium alloys - Merging - Photonics - Powders - Silicon on insulator technology - Single crystals
Uncontrolled terms:Defect modes
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 744 Lasers - 801.4 Physical Chemistry - 802.3 Chemical Operations - 951 Materials Science - 804 Chemical Products Generally - 931.3 Atomic and Molecular Physics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 933.1.2 Crystal Growth - 813 Coatings and Finishes - 723.2 Data Processing and Image Processing - 723.1 Computer Programming - 423 Non Mechanical Properties and Tests of Building Materials - 482.2 Minerals - 531.2 Metallography - 536 Powder Metallurgy - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 701.1 Electricity: Basic Concepts and Phenomena - 712 Electronic and Thermionic Materials - 712.1 Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 717 Optical Communication
DOI:10.1364/JOSAB.25.000972
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258666
Title:Characteristics and mechanism of cell apoptosis induced by high fluence low-power laser irradiation
Authors:Wu, Shengnan (1); Xing, Da (1)
Author affiliation:(1) MOE Key Libratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570B
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:High fluence low-power laser irradiation (LPLI) can induce cell apoptosis which is mediated by a high level of mitochondrial reactive oxygen species (ROS) production; however the mechanism is still unclear. Here, we further studied the mitochondrial signaling pathways involved in the apoptotic process. Activation of caspase-9 indicated an apoptotic process occurred under the high fluence LPLI treatment. Increasing of dichlorodihydrofluorescein diacetate (H2DCFDA) fluorescence products showed a high level of mitochondrial ROS generation after irradiation. Cyclosporine A (CsA) has been reported to inhibit some kinds of apoptosis, which are especially mediated by ROS. The question is whether CsA has some effect on high fluence LPLI induced apoptosis. Results showed that CsA significantly delayed mitochondria depolarization, observably delayed cell death in response to high fluence LPLI treatment demonstrating a significant protective role of CsA on the apoptotic process. These results suggest that high fluence LPLI induced cell apoptosis via some CsA-sensitive mitochondrial signal pathways.
Number of references:33
Main heading:Cell death
Controlled terms:Laser radiation - Mitochondria - Oxygen - Patient treatment
Uncontrolled terms:Low-power laser irradiation (LPLI) - Reactive oxygen species (ROS)
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 461.9 Biology - 744 Lasers - 804 Chemical Products Generally
Treatment:Theoretical (THR)
DOI:10.1117/12.762118
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911602282
Title:Microbial fuel cell based on Klebsiella pneumoniae biofilm
Authors:Zhang, Lixia (1); Zhou, Shungui (2); Zhuang, Li (2); Li, Weishan (1); Zhang, Jintao (2); Lu, Na (2); Deng, Lifang (2)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China; (2) Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou, 510650, China; (3) Key Laboratory of Electrochemical Technology on Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China
Corresponding author:Li, W.
(liwsh@scnu.)
Source title:Electrochemistry Communications
Abbreviated source title:Electrochem. Commun.
Volume:10
Issue:10
Issue date:October 2008
Publication year:2008
Pages:1641-1643
Language:English
ISSN:13882481
CODEN:ECCMF9
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:In this paper we reported a novel microbial fuel cell (MFC) based on Klebsiella pneumoniae (K. pneumoniae) strain L17 biofilm, which can utilize directly starch and glucose to generate electricity. The electrochemical activity of K. pneumoniae and the performance of the MFC were evaluated by cyclic voltammetry, scanning electron microscope (SEM) and polarization curve measurement. The results indicated that an established K. pneumoniae biofilm cells were responsible for the direct electron transfer from fuels to electrode during electricity production. The SEM observation proved the ability of K. pneumoniae to colonize on the electrode surface. This MFC generated power from the direct electrocatalysis by the K. pneumoniae strain L17 biofilm. © 2008 Elsevier B.V. All rights reserved.
Number of references:22
Main heading:Electric generators
Controlled terms:Bioelectric phenomena - Biofilms - Biofilters - Cyclic voltammetry - Direct energy conversion - Electric batteries - Electrocatalysis - Electrochemistry - Electrolysis - Electron beam lithography - Fuel cells - Glucose - Industrial management - Metallizing - Microbial fuel cells - Scanning electron microscopy - Secondary emission - Solid oxide fuel cells (SOFC) - Voltammetry
Uncontrolled terms:Biofilm - Biofilm cells - Direct electrocatalysis - Direct electron transfer - Electricity production - Electrochemical activities - Electrochemical activity - Electrode surfaces - Generate electricity - Klebsiella pneumoniae - Microbial fuel cell - Microbial Fuel Cell (MFC) - Polarization curves - Scanning electron microscope - SEM observation
Classification code:705.2 Electric Generators - 714.1 Electron Tubes - 741.1 Light/Optics - 745.1 Printing - 801.4.1 Electrochemistry - 804.1 Organic Compounds - 912.2 Management - 702.2 Fuel Cells - 445.1 Water Treatment Techniques - 461.1 Biomedical Engineering - 461.8 Biotechnology - 462.5 Biomaterials (including synthetics) - 539.3 Metal Plating - 702 Electric Batteries and Fuel Cells - 702.1 Electric Batteries
DOI:10.1016/j.elecom.2008.08.030
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080411057991
Title:A channel Brownian pump powered by an unbiased external force
Authors:Ai, Bao-Quan (1); Liu, Liang-Gang (2)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Physics and Telecommunication Engineering, South China Normal University, 510006 Guangzhou, China; (2) Faculty of Information Technology, Macau University of Science and Technology, Macao, China
Corresponding author:Ai, B.-Q.
(aibq@)
Source title:Journal of Chemical Physics
Abbreviated source title:J Chem Phys
Volume:128
Issue:2
Issue date:2008
Publication year:2008
Article number:024706
Language:English
ISSN:00219606
CODEN:JCPSA6
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:A Brownian pump of particles in an asymmetric finite tube is investigated in the presence of an unbiased external force. The pumping system is bounded by two particle reservoirs. It is found that the particles can be pumped through the tube from a reservoir at low concentration to one at the same or higher concentration. There exists an optimized value of temperature (or the amplitude of the external force) at which the pumping capacity takes its maximum value. The pumping capacity decreases with increasing radius at the bottleneck of the tube. © 2008 American Institute of Physics.
Number of references:19
Main heading:Brownian movement
Controlled terms:Optical pumping - Optimization - Thermal effects
Uncontrolled terms:Brownian pump - Particle reservoirs - Pumping capacity
Classification code:641 Heat and Mass Transfer; Thermodynamics - 741.1 Light/Optics - 801.3 Colloid Chemistry - 921.5 Optimization Techniques - 951 Materials Science
Treatment:Theoretical (THR)
DOI:10.1063/1.2813420
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090711905685
Title:Impact of a stripe waveguide to coupled defect modes of photonic crystals
Authors:Lin, Xu-Sheng (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Lan, Sheng (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China; (2) Department of Physics, Shantou University, Shantou 515063, China
Corresponding author:Lin, X.-S.
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:12
Issue date:December 2008
Publication year:2008
Pages:7717-7724
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:Coupled defect modes of photonic crystals can be characterized by the transmission spectrum shape that is closely linked to the stripe waveguide connecting the defects. Unlike the direct coupling cases where the phase shift of lightwave depends only on the defect mode frequency, we found that for the waveguide coupling cases the waveguide length and the dispersion relation must be also considered. By changing the waveguide length, the spectrum can exhibit periodically three-peak appearance, two-peak appearance, and flat top appearance. At frequencies close to the defect mode, the results of the coupled mode theory are in good agreement with the simulations using the finite-difference time-domain technique, verifying the validity of the theoretical model even in the complicated cases.
Number of references:20
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711537044
Title:Cis-Dichloridobis(1,10-phenanthroline-5,6-diol-κ2 N,N prime )manganese(II): A supramolecular chain formed via O - H [midline ellipsis] Cl bonds and aromatic stacking
Authors:Guan, Xiao-Hong (0); Wu, Jian-Zhong (0); Yu, Ying (0); Yang, Ping (0)
Corresponding author:Wu, J.-Z.
(wujzh@scnu.)
Corr. author affiliation:School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Source title:Acta Crystallographica Section C: Crystal Structure Communications
Abbreviated source title:Acta Crystallogr Sect C Cryst Struct Commun
Volume:64
Issue:9
Publication year:2008
Pages:m311-m313
Language:English
ISSN:01082701
E-ISSN:01082701
CODEN:ACSCEE
Document type:Journal article (JA)
Publisher:International Union of Crystallography, Chester, CH1 2HU, United Kingdom
Abstract:The title compound, [MnCl2(C12H8N 2O2)2], displays a novel supra-molecular chain formed by inter-molecular O - H [midline ellipsis] Cl hydrogen bonds and aromatic stacking. The molecule has crystallographically imposed twofold symmetry with the Mn II atom on the twofold axis. In the 1,10-phenanthroline-5,6-diol ligand, each H atom of the two hydr-oxy groups is oriented towards the other hydr-oxy O atom. Both hydr-oxy groups form inter-molecular O - H [midline ellipsis] Cl hydrogen bonds with a single Cl atom of an adjacent mol-ecule. These hydrogen bonds connect the mol-ecules via operation of the mol-ecular twofold axis and the centre of inversion of the crystal lattice, forming a doubly-bridged one-dimensional structure with Mn atoms as the nodes. Strong aromatic π-stacking between two anti-parallel neighbouring 1,10-phenanthroline-5,6- diol ligands also helps to stabilize the chain. © 2008 International Union of Crystallography.
Number of references:27
DOI:10.1107/S0108270108026000
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011136540
Title:Characterization of PolyA and PolyC mismatches by Raman spectroscopy
Authors:Liao, Yubo (1); Meng, Yaoyong (1); Lei, Haodong (1); Wang, Ying (3)
Author affiliation:(1) Photonic Chinese Medicine Lab., South China Normal University, Guangzhou 510631, China; (2) School of Physics and Electronic Information Science, Gannan Teachers College, Ganzhou 341000, China; (3) Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510631, China
Corresponding author:Liao, Y.
Source title:Chinese Optics Letters
Abbreviated source title:Chin. Opt. Lett.
Volume:6
Issue:1
Issue date:January 2008
Publication year:2008
Pages:61-63
Language:English
ISSN:16717694
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:A-C mismatches are studied by Raman spectral characterization of PolyA, PolyC, and their equimolar complex in solution of 0.14 mol/L Na+, pH7.0. Experimental results show that A-C mismatches occur to be A/B (mainly A) conformers, and unlike Watson-Crick base pairing, this kind of mismatches is stabilized by only one hydrogen bond involving cytosine N4H2 and adenine N7. The formation of A-C complex makes the base stacking interactions much stronger, and conformation of the backbone more ordered, which leads to obvious Raman hypochromic effect with some shifts in corresponding bands.
Number of references:20
Main heading:Raman spectroscopy
Controlled terms:Hydrogen bonds
Uncontrolled terms:A-C mismatches - Raman hypochromic effect
Classification code:741.1 Light/Optics - 801.4 Physical Chemistry
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811236682
Title:Thermal coagulation-induced changes of the optical properties of normal and adenomatous human colon tissues in vitro in the spectral range 400-1100 nm
Authors:Ao, Huilan (1); Xing, Da (1); Wei, Huajiang (1); Gu, Huaimin (1); Wu, Guoyong (2); Lu, Jianjun (2)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, Ina Normal University, Guangzhou 510631, China; (2) Department of Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
Corresponding author:Ao, H.
Source title:Physics in Medicine and Biology
Abbreviated source title:Phys. Med. Biol.
Volume:53
Issue:8
Issue date:April 21, 2008
Publication year:2008
Pages:2197-2206
Language:English
ISSN:00319155
E-ISSN:13616560
CODEN:PHMBA7
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:The absorption coefficients, the reduced scattering coefficients and the optical penetration depths for native and coagulated human normal and adenomatous colon tissues in vitro were determined over the range of 400-1100 nm using a spectrophotometer with an internal integrating sphere system, and the inverse adding-doubling method was applied to calculate the tissue optical properties from diffuse reflectance and total transmittance measurements. The experimental results showed that in the range of 400-1100 nm there were larger absorption coefficients (P < 0.01) and smaller reduced scattering coefficients (P < 0.01) for adenomatous colon tissues than for normal colon tissues, and there were smaller optical penetration depths for adenomatous colon tissues than for normal colon tissues, especially in the near-infrared wavelength. Thermal coagulation induced significant increase of the absorption coefficients and reduced scattering coefficients for the normal and adenomatous colon tissues, and significantly reduced decrease of the optical penetration depths for the normal and adenomatous colon tissues. The smaller optical penetration depth for coagulated adenomatous colon tissues is a disadvantage for laser-induced thermotherapy (LITT) and photodynamic therapy (PDT). It is necessary to adjust the application parameters of lasers to achieve optimal therapy. © 2008 Institute of Physics and Engineering in Medicine.
Number of references:39
Main heading:Biomedical engineering
Controlled terms:Coagulation - Photodynamic therapy - Scattering - Spectrophotometers - Thermal effects - Tissue
Uncontrolled terms:Absorption coefficients - Optical penetration - Thermal coagulation
Classification code:802.3 Chemical Operations - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 951 Materials Science - 641 Heat and Mass Transfer; Thermodynamics - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering - 461.6 Medicine and Pharmacology
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1088/0031-9155/53/8/013
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611206810
Title:Analysis on unsecurity of quantum secret sharing based on Smolin bound entangled states
Authors:Yu, Yafei (1); Zhang, Zhiming (1)
Author affiliation:(1) Guangdong Provincial Key Laboratory of Photonic Information Technology, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Yu, Y.
(yfyuks@.cn)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:28
Issue:3
Issue date:March 2008
Publication year:2008
Pages:556-559
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:We analyze the security of quantum secret sharing (QSS) with bound entangled Smolin states as the channel quantum state. An intercept-resend strategy of the inner legal communicators is proposed to attack the security without being detected by the checking procedure compared with the results of single-qubit measurement. It is concladed that QQS only with Smolin bound entangled states as the channel quantum state is not unconditionally secure.
Number of references:16
Main heading:Quantum optics
Controlled terms:Optical communication
Uncontrolled terms:Bound entangled Smolin state - Coherent individual attack - Quantum information - Quantum secret sharing (QSS)
Classification code:717.1 Optical Communication Systems - 741.1 Light/Optics - 931.4 Quantum Theory; Quantum Mechanics
Treatment:Theoretical (THR)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911600105
Title:An ant routing algorithm for wireless mesh network
Authors:Pan, Daru (1); Xing, Bingbing (2)
Author affiliation:(1) School of Physics and Telecommunication, South China Normal University, Guangzhou, Guangdong Province, China; (2) Information Engineering College, Central University of Nationality, Beijin, China
Corresponding author:Pan, D.
(Pandr@scnu.)
Source title:Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
Abbreviated source title:Proc. World Congr. Intelligent Control Autom. WCICA
Monograph title:Proceedings of the 7th World Congress on Intelligent Control and Automation, WCICA'08
Issue date:2008
Publication year:2008
Pages:4591-4594
Article number:4593664
Language:English
ISBN-13:9781424421145
Document type:Conference article (CA)
Conference name:7th World Congress on Intelligent Control and Automation, WCICA'08
Conference date:June 25,2008 - June 27,2008
Conference location:Chongqing, China
Conference code:73578
Sponsor:IEEE Robotics and Automation Society; IEEE Control System Society Beijing Chapter; Natural Science Foundation of China; Chinese Association of Automation; Chinese Association of Artificial Intelligence
Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Ant colony optimization is being used to solve problems in many scientific fields. In this paper we apply an ant routing algorithm to multi-radio and multi-channel wireless mesh networks. The proposed algorithm introduces ants encountering scheme to imitate the natural process of information sharing between the individuals of an intelligent swarm. Simulation of the routing shows that this new routing algorithm works well in terms of speed of convergence and recovery from failure. Moreover, the proposed algorithm adapts to the changing traffic and performs better than other ant-based routing. © 2008 IEEE.
Number of references:9
Main heading:Routing algorithms
Controlled terms:Algorithms - Industrial engineering - Intelligent control - Local area networks - Network routing - Optimization - Wireless local area networks (WLAN) - Wireless networks
Uncontrolled terms:And recovery - Ant routing algorithm - Ant-based routing - Ant-colony optimization - AODV - Control and automation - Information sharing - Multi channels - Multi-channel - Natural processes - Scientific fields - Speed of convergence - Wireless mesh network - Wireless mesh networks
Classification code:921.5 Optimization Techniques - 912.1 Industrial Engineering - 723.4.1 Expert Systems - 723 Computer Software, Data Handling and Applications - 716.3 Radio Systems and Equipment - 716 Telecommunication; Radar, Radio and Television - 703.1 Electric Networks
DOI:10.1109/WCICA.2008.4593664
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711096628
Title:Photoacoustic imaging application in tumor diagnosis and treatment monitoring
Authors:Xiang, Liangzhong (1); Zhou, Feifan (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xiang, L.
(xianglzh@scnu.)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1100-1104
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:Photoacoustic imaging (also called optoacoustic or thermoacoustic imaging) can image vascularity clearly with simultaneous high contrast and high spatial resolution, and has the potential to be an application for tumor diagnosis and treatment monitoring. In a unique photoacoustic system, a single pulse laser beam was used as the light source for both cancer treatment and for concurrently generating ultrasound signals for photoacoustic imaging. The photoacoustic system was used to detect early tumor on the rat back, and the vascular structure around the tumor could be imaged clearly with optimal contrast. This system was also used to monitoring damage of the vascular structures before, during and after photodynamic therapy of tumor. This work demonstrates that photoacoustic imaging can potentially be used to guide photodynamic therapy and other phototherapies using vascular changes during treatment. Prospective application of photoacoustic imaging is to characterize and monitor the accumulation of gold nanoshells in vivo to guide nanoshell-based thermal tumor therapy.
Number of references:15
Main heading:Medical imaging
Controlled terms:Acoustic imaging - Diagnosis - Image resolution - Patient monitoring - Photoacoustic effect - Photodynamic therapy - Tumors
Uncontrolled terms:Photoacoustic imaging - Tumor diagnosis - Tumor treatment monitoring
Classification code:751.2 Acoustic Properties of Materials - 746 Imaging Techniques - 741.1 Light/Optics - 716.4 Television Systems and Equipment - 461.6 Medicine and Pharmacology - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering
Treatment:Theoretical (THR)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080811103557
Title:Maximum eigenvalues of the reciprocal distance matrix and the reverse Wiener matrix
Authors:Zhou, Bo (1); Trinajstic, Nenad (2)
Author affiliation:(1) Department of Mathematics, South China Normal University, Guangzhou 510631, China; (2) Rugjer Boškovic Institute, P. O. Box 180, HR-10 002 Zagreb, Croatia
Corresponding author:Zhou, B.
(zhoubo@scnu.)
Source title:International Journal of Quantum Chemistry
Abbreviated source title:Int J Quantum Chem
Volume:108
Issue:5
Issue date:April 2008
Publication year:2008
Pages:858-864
Language:English
ISSN:00207608
E-ISSN:1097461X
CODEN:IJQCB2
Document type:Journal article (JA)
Publisher:John Wiley and Sons Inc., P.O.Box 18667, Newark, NJ 07191-8667, United States
Abstract:We report some properties of the maximum eigenvalues of the reciprocal distance matrix and the reverse Wiener matrix of a connected graph, in particular, various lower and upper bounds, and the Nordhaus-Gaddum-type results for them. © 2007 Wiley Periodicals, Inc.
Number of references:32
Main heading:Eigenvalues and eigenfunctions
Controlled terms:Graph theory - Matrix algebra
Uncontrolled terms:Nordhaus-Gaddum-type - Reverse Wiener index - Wiener matrix
Classification code:921.1 Algebra - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
Treatment:Theoretical (THR)
DOI:10.1002/qua.21558
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111271866
Title:Insight into the effect of bim in photofrin-PDT-induced apoptosis
Authors:Wang, Xianwang (1); Xing, Da (1); Liu, Lei (1); Song, Jiaxing (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68261M
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Photodynamic therapy (PDT) induces cell apoptosis mainly by the mitochondrial pathway. The Bcl-2 family proteins play an important role in this pathway. However, the detailed mechanism is not elucidated. The current study was aimed to determine whether Bim, a BH3-only protein of Bcl-2 family, was involved during Photofrin-PDT-induced apoptosis in ASTC-a-1 and MCF-7 cell lines. The data show that massive reactive oxygen species (ROS) were generated firstly after Photofrin-PDT treatment, leading to the disappearance of the mitochondrial membrane potential. Furthermore, the activation of Bim and Bax were dynamically observed. Confocal imaging of the cells transfected with GFP-BimL demonstrated that BimL translocate to mitochondria occurred about 12 min after PDT treatment. Bax activation occurred about 15 min after PDT treatment. These results suggest that Bim, as an effectors, was involved in Photofrin-PDT-induced apoptosis.
Number of references:16
Main heading:Photodynamic therapy
Controlled terms:Cell death - Cell membranes - Confocal microscopy - Medical imaging - Mitochondria - Proteins
Uncontrolled terms:Membrane potential - Photofrin - Reactive oxygen species (ROS)
Classification code:746 Imaging Techniques - 744.9 Laser Applications - 741.3 Optical Devices and Systems - 804.1 Organic Compounds - 461.9 Biology - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering - 461.6 Medicine and Pharmacology
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.783077
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811362482
Title:Metal contamination in the sediment, pondweed, and snails of a stream receiving effluent from a lead/zinc mine in southern China
Authors:Deng, P.Y. (1); Shu, W.S. (2); Lan, C.Y. (2); Liu, W. (3)
Author affiliation:(1) Institute of Environment Science, South China Normal University, Guangzhou 510631, China; (2) School of Life Sciences, Sun Yatsen University, Guangzhou 510275, China; (3) Institute of Hydrobiology, Jinan University, Guangzhou 510632, China
Corresponding author:Liu, W.
(Liuweey@.cn)
Source title:Bulletin of Environmental Contamination and Toxicology
Abbreviated source title:Bull. Environ. Contam. Toxicol.
Volume:81
Issue:1
Issue date:July 2008
Publication year:2008
Pages:69-74
Language:English
ISSN:00074861
E-ISSN:14320800
CODEN:BECTA6
Document type:Journal article (JA)
Publisher:Springer New York LLC, 233 Springer Street, New York, 10013-1578, United States
Abstract:This study assessed the potential of Potamogeton crispus and Pomacea canaliculata as biomonitors of sedimentary metal contamination. The results indicate P. crispus possesses several attributes of a biomonitor and its tissue concentrations of Cd, Pb and Zn may reflect the levels of sedimentary contamination by these metals. Although P. canaliculata can accumulate metals to high levels and serve as an indicator of metal contamination, its tissue metal concentrations did not correlate with those of the sediments or macrophytes. © 2008 Springer Science+Business Media, LLC.
Number of references:13
Main heading:Pollution
Controlled terms:Cadmium - Cadmium compounds - Contamination - Lead - Metals - River pollution - Sedimentation - Sedimentology - Tissue - Zinc
Uncontrolled terms:Bio monitor - Biomonitors - Business media - Macrophytes - Metal concentrations - metal contamination - Southern China - Springer (CO) - tissue concentrations
Classification code:802.3 Chemical Operations - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 546.3 Zinc and Alloys - 546.1 Lead and Alloys - 804.1 Organic Compounds - 531 Metallurgy and Metallography - 461.2 Biological Materials and Tissue Engineering - 454.2 Environmental Impact and Protection - 453 Water Pollution - 481.1 Geology
DOI:10.1007/s00128-008-9428-3
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084811741365
Title:Preparation and photocatalytic properties of Fe(III)-doped TiO2 magnetically separable photocatalyst
Authors:Xiao, Xin (1); Zhang, Jinghuan (1); Nan, Junmin (1)
Author affiliation:(1) School of Chemistry and the Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Xiao, X.
(xiaox@scnu.)
Source title:Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society
Abbreviated source title:Kuei Suan Jen Hsueh Pao
Volume:36
Issue:11
Issue date:November 2008
Publication year:2008
Pages:1548-1552
Language:English
ISSN:04545648
CODEN:KSYHA5
Document type:Journal article (JA)
Publisher:Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China
Abstract:Fe(III)-doped TiO2/SiO2/Fe3O4 (FTSF) photocatalyst with anatase structure and a particle size range of 10-20 nm was synthesized by the sol-gel process, and its photocatalytic efficiency was characterized through degradation of 1 × 10-4 mol/L methyl orange solution. The results show that the adsorption capability in the visible region and photocatalytic activity of FTSF samples with suitable Fe(III) dopant content can be improved. The FTSF powder sample calcined at 400°C for 3 h and doped with 0.9% (in mole, the same below) Fe(III) has the highest photocatalytic efficiency, and its degradation ratio is over 95% for methyl orange solution after ultraviolet light irradiation treatment for 90 min. In addition, more than 98% (in mass) FTSF powder particles can be separated from the solution after degradation treatment using magnetic iron and its photocatalytic efficiency can be maintained at 80%. It is considered that the FTSF powder doped with 0.9% Fe(III) is a promising photocatalyst.
Number of references:36
Main heading:Iron compounds
Controlled terms:Adsorption - Azo dyes - Calcination - Colloids - Degradation - Gelation - Iron oxides - Magnetic field effects - Magnetic separation - Photocatalysis - Photocatalysts - Powders - Silicon compounds - Sol-gel process - Titanium dioxide - Titanium oxides - Ultraviolet radiation
Uncontrolled terms:Adsorption capabilities - Anatase structures - Composite photocatalysts - Degradation ratios - Dopant contents - Methyl orange solutions - Particle size ranges - Photocatalytic activities - Photocatalytic efficiencies - Photocatalytic properties - Powder particles - Powder samples - Sol - gels - Titania - Ultraviolet light irradiations - Visible regions
Classification code:802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812.3 Glass - 813.1 Coating Techniques - 802.2 Chemical Reactions - 536 Powder Metallurgy - 701.2 Magnetism: Basic Concepts and Phenomena - 708.4 Magnetic Materials - 712.1.2 Compound Semiconducting Materials - 741.1 Light/Optics - 801.3 Colloid Chemistry - 801.4 Physical Chemistry
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811362153
Title:Low-intensity laser irradiation improves the mitochondrial dysfunction of C2C12 induced by electrical stimulation
Authors:Xu, Xiaoyang (1); Zhao, Xiufeng (1); Liu, Timon Cheng-Yi (1); Pan, Hongying (1)
Author affiliation:(1) Laboratory of Laser Sports Medicine, College of Sports Sciences, South China Normal University, Guangzhou, China; (2) Department of Physical Education, Tai Shan University, Shandong, China; (3) Key Laboratory of Laser Life Science, South China Normal University, Ministry of Education, Guangzhou, China; (4) Laboratory of Laser Sports Medicine, College of Sports Science, South China Normal University, Guangzhou, GD 516031, China
Corresponding author:Xu, X.
(xuxy@scnu.)
Source title:Photomedicine and Laser Surgery
Abbreviated source title:Photomed. Laser Surg.
Volume:26
Issue:3
Issue date:June 1, 2008
Publication year:2008
Pages:197-202
Language:English
ISSN:15495418
CODEN:PLDHA8
Document type:Journal article (JA)
Publisher:Mary Ann Liebert Inc., 140 Huguenot Street, New Rochelle, NY 10801-5215, United States
Abstract:Objective: We investigated the effects of electrical stimulation and low-intensity laser (LIL) energy on the mitochondrial function of cultured C2C12 myotubes in order to find a dosage that could be used to improve the function of mitochondria, and then rehabilitate exercise-induced damage and fatigue. Background Data: Many other studies in the past demonstrated that LIL had a cytoprotective effect, and a recent study also found that LIL could reduce muscular fatigue during tetanic contractions in rats. Methods: Cultured C2C12 myotubes were subjected to electrical stimulation or/and LIL irradiation at various intensities. Reactive oxygen species (ROS) were detected with a fluorescent probe (DCFH-DA) and mitochondrial function was assessed with an MTT assay. Results: The results showed that electrical stimulation at 20 ms, 5 Hz, and 45 V for 75 min can induce mitochondrial dysfunction in cultured C2C12 myotubes. Electrical stimulation-induced mitochondrial dysfunction was improved, but degeneration occurred with LIL at doses of 0.33-8.22 and 11.22-14.16 J/cm2, respectively, and these changes were markedly increased with LIL at 0.33 and 1.34 J/cm2, respectively. Conclusions: We conclude that treatment of myotubes with the proper dosage of LIL irradiation significantly diminished production of ROS and restored mitochondrial function, and this may provide a foundation for the use of photobiomodulation to treat exercise-induced mitochondrial dysfunction or skeletal muscular fatigue. © 2008 Mary Ann Liebert, Inc.
Number of references:37
Main heading:Electromagnetic launchers
Controlled terms:Fatigue damage - Fluorescence spectroscopy - Irradiation - Lasers - Oxygen - Photoacoustic effect - Pulsed laser deposition - Radiation
Uncontrolled terms:Electrical stimulations - Fluorescent probing - In order - Low intensity laser irradiation - Low intensity lasers - Mitochondrial dysfunction - Mitochondrial functions - MTT assaying - Muscular fatigues - Myotubes - Reactive oxygen species (ROS)
Classification code:951 Materials Science - 804 Chemical Products Generally - 744.9 Laser Applications - 744.1 Lasers, General - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 704.2 Electric Equipment - 657.1 Solar Energy and Phenomena - 622.2 Radiation Effects
DOI:10.1089/pho.2007.2125
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080811104778
Title:Oscillation and nonoscillation of second order differential equations with delay depending on the unknown function
Authors:Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xztxhyyj@pub.guangzhou.)
Source title:Journal of Computational and Applied Mathematics
Abbreviated source title:J. Comput. Appl. Math.
Volume:214
Issue:2
Issue date:May 1, 2008
Publication year:2008
Pages:371-380
Language:English
ISSN:03770427
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Oscillation and nonoscillation of the second order differential equation with delay depending on the unknown function(r (t) x′ (t))′ + f (t, x (t), x ({up triangle, open} (t, x (t)))) = 0in the case when ∫∞ d s / r (s) < ∞ holds are consider. The results obtained in this paper can be conjugated with the theorems given by Bainov et al. [J. Comput. Appl. Math. 91 (1998) 87-96]. © 2007 Elsevier B.V. All rights reserved.
Number of references:7
Main heading:Differential equations
Controlled terms:Function evaluation - Oscillators (electronic) - Theorem proving
Uncontrolled terms:Asymptotic behavior - Delay depending on the unknown function - Nonoscillation - Oscillation - Second order differential equations
Classification code:713.2 Oscillators - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 921.2 Calculus - 921.6 Numerical Methods
Treatment:Theoretical (THR)
DOI:10.1016/j.cam.2007.03.001
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083311462013
Title:The great improvement effect of pores on ZT in Co1-x Nix Sb3 system
Authors:He, Qinyu (1); Hu, Shejun (1); Tang, Xingui (2); Lan, Yucheng (3); Yang, Jian (3); Wang, Xiaowei (3); Ren, Zhifeng (3); Hao, Qing (4); Chen, Gang (4)
Author affiliation:(1) School of Physics, Department and Telecommunication, South China Normal University, Guangzhou, 510631, China; (2) School of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; (3) Department of Physics, Boston College, Chestnut Hill, MA 02467, United States; (4) Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Corresponding author:He, Q.
(hhqy@scnu.)
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:93
Issue:4
Issue date:2008
Publication year:2008
Article number:042108
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:In this paper, the Co1-x Nix Sb3+y system (x=0.1,0.2; y=0, 0.05) has been prepared by direct current induced hot press and annealing. Pores were made by annealing pressed Co1-x Nix Sb3.05 pellets into Co1-x Nix Sb3 pellets during annealing. It was found that from room temperature to 500 °C, the pores with diameter larger than 1 μm has significantly increased the Seebeck coefficient, considerably decreased the thermal conductivity, almost maintained the electrical conductivity constant, and therefore markedly improved the dimensionless figure of merit (ZT) of Co1-x Nix Sb3 system. By comparing the samples, we conclude that inducing pores into skutterudites is an effective route to greatly improve the ZT. © 2008 American Institute of Physics.
Number of references:14
Main heading:Annealing
Controlled terms:Electric conductivity - Pelletizing - Seebeck coefficient - Thermoelectricity
Uncontrolled terms:Dimensionless figure of merit - Direct current - Electrical conductivity - Hot press - Room temperatures - Skutterudites
Classification code:533.1 Ore Treatment - 537.1 Heat Treatment Processes - 615.4 Thermoelectric Energy - 701.1 Electricity: Basic Concepts and Phenomena
DOI:10.1063/1.2963476
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090211855718
Title:The influential factors of MOCVD growth of InP in Opals
Authors:Tan, Chun-Hua (1); Fan, Guang-Han (2); Huang, Xu-Guang (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China; (2) Institute of Optoelectronic Materials and Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Corresponding author:Tan, C.-H.
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:12
Issue date:December 2008
Publication year:2008
Pages:2763-2767
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The key problem of fabricating the 3-D InP inverse opal photonic crystal is to increase the loading of InP in opals. In the present paper, low-pressure metal-organic chemical-vapour deposition (MOCVD) was used to infill the voids within synthetic opals with InP. The morphologies and optical properties of SiO2 -InP photonic crystal were characterized by scanning electron microscopy and ultraviolet-visible spectrophotometry (UV-Vis). Several series of experiments were carried out in order to analyze the factors that influence the loading of InP in opals and determine the optimal InP growth conditions. The results of optical experiments are in good agreement with those derived from the theoretical considerations: By increasing the extent of InP infilling within the voids, the extent of refractive index contrast between the silica spheres and the void as well as the extent of natural optical properties change of the photonic crystal were increased. Cycle growth, low-pressure growth, and using the match substrate and the same configuration character between SiO2 and InP are beneficial to increaseing the extent of InP infilling within the opal voids. The process has been optimized to achieve SiO2 -InP photonic crystal with higher loading of InP. The study provides a scientific basis for manufacturing three-dimensional InP inverse opal photonic crystals.
Number of references:20
Main heading:Photonic crystals
Controlled terms:Chemical vapor deposition - Crystal atomic structure - Energy gap - Gallium alloys - Growth (materials) - Optical devices - Optical microscopy - Optical properties - Organic chemicals - Organic compounds - Organic polymers - Photonic band gap - Refractive index - Scanning electron microscopy - Silica - Silicate minerals - Silicon compounds - Silicon on insulator technology - Three dimensional
Uncontrolled terms:Artificial opal crystal - Growth conditions - Infilling - Influential factors - InP - Inverse opals - Key problems - MOCVD - MOCVD growths - Optical experiments - Pressure growths - Silica spheres - Synthetic opals - Ultra violets - Vapour depositions
Classification code:951 Materials Science - 804.2 Inorganic Compounds - 812 Ceramics, Refractories and Glass - 813.1 Coating Techniques - 815.1.1 Organic Polymers - 902.1 Engineering Graphics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 933.1.2 Crystal Growth - 804.1 Organic Compounds - 482.2 Minerals - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 712.1 Semiconducting Materials - 712.1.2 Compound Semiconducting Materials - 802.3 Chemical Operations - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 802.2 Chemical Reactions - 723.5 Computer Applications
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011777525
Title:Experimental study of practical secure and stable differential phase shift key distribution QKD system
Authors:Huang, Yu-Xian (1); Liang, Rui-Sheng (1); Hu, Hua-Peng (1); Lu, Yi-Qun (1); Wang, Jin-Dong (1); Liu, Song-Hao (1)
Author affiliation:(1) Lab. of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Corresponding author:Huang, Y.-X.
Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser
Abbreviated source title:Guangdianzi Jiguang
Volume:19
Issue:11
Issue date:November 2008
Publication year:2008
Pages:1521-1525
Language:Chinese
ISSN:10050086
CODEN:GUJIE9
Document type:Journal article (JA)
Publisher:Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China
Abstract:We insert a time-multiplexed single-photon detector in a differential phase shift key distribution QKD system to distinguish states of different photon numbers projected by the sender (Alice) in each quantum key distribution. In this way, we can ensure the security of the system which is practical and useful.
Number of references:15
Main heading:Quantum cryptography
Controlled terms:Cryptography - Gas detectors - Particle beams - Phase modulation - Phase shift - Phase shift keying - Photodetectors - Photons - Quantum chemistry
Uncontrolled terms:Differential phase shifts - Experimental studies - Photon detectors - Photon numbers - Qkd systems - Quantum key distributions - Single-photon detector - Single-photon source
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 801 Chemistry - 801.4 Physical Chemistry - 943.3 Special Purpose Instruments - 914.1 Accidents and Accident Prevention - 931.4 Quantum Theory; Quantum Mechanics - 932.1 High Energy Physics - 942.2 Electric Variables Measurements - 931.3 Atomic and Molecular Physics - 723 Computer Software, Data Handling and Applications - 718 Telephone Systems and Related Technologies; Line Communications - 503.2 Coal Mining Operations - 522 Gas Fuels - 703.1 Electric Networks - 713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers - 714.1 Electron Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080311021542
Title:The infinity norm bound for the inverse of nonsingular diagonal dominant matrices
Authors:Li, Wen (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, W.
(liwen@scnu.)
Source title:Applied Mathematics Letters
Abbreviated source title:Appl Math Lett
Volume:21
Issue:3
Issue date:March 2008
Publication year:2008
Pages:258-263
Language:English
ISSN:08939659
CODEN:AMLEEL
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:In this note, we bound the inverse of nonsingular diagonal dominant matrices under the infinity norm. This bound is always sharper than the one in [P.N. Shivakumar, et al., On two-sided bounds related to weakly diagonally dominant M-matrices with application to digital dynamics, SIAM J. Matrix Anal. Appl. 17 (2) (1996) 298-312]. © 2008.
Number of references:5
Main heading:Inverse problems
Controlled terms:Boundary conditions - Digital control systems - Dynamic programming - Matrix algebra
Uncontrolled terms:Diagonal dominant matrices - Infinity norm bounds
Classification code:731.1 Control Systems - 921 Mathematics - 921.1 Algebra - 921.5 Optimization Techniques
Treatment:Theoretical (THR)
DOI:10.1016/j.aml.2007.03.018
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911597683
Title:Live morphological analysis of taxol-induced cytoplasmic vacuoliazation in human lung adenocarcinoma cells
Authors:Wang, Xiao-Ping (1); Chen, Tong-Sheng (1); Sun, Lei (1); Cai, Ji-Ye (2); Wu, Ming-Qian (2); Mok, Martin (3)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China; (2) Department of Anesthesiology, The First Affiliated Hospital, Jinan University, Guangzhou, 510632, China; (3) Department of Anesthesiology, University of Southern California, Los Angeles, CA 90033, United States
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Micron
Abbreviated source title:Micron
Volume:39
Issue:8
Issue date:December 2008
Publication year:2008
Pages:1216-1221
Language:English
ISSN:09684328
CODEN:MCONEN
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:Taxol (paclitaxel), one of the most active cancer chemotherapeutic agents, can cause programmed cell death (PCD) and cytoplasmic vacuolization. The objective of this study was to analyze the morphological characteristics induced by taxol. Human lung adenocarcinoma (ASTC-a-1) cells were exposed to various concentration of taxol. CCK-8 was used to assay the cell viability. Atomic force microscopy (AFM), plasmid transfection and confocal fluorescence microscopy were performed to image the cells morphological change induced by taxol. Fluorescence resonance energy transfer (FRET) was used to monitor the caspase-3 activation in living cells during taxol-induced cell death. Cells treated with taxol exhibited significant swelling and cytoplasmic vacuolization which may be due to endoplasmic reticulum (ER) vacuolization. Caspase-3 was not activated during taxol-induced cytoplasmic vacuolization and cell death. These findings suggest that taxol induces caspase-3-independent cytoplasmic vacuolization, cell swelling and cell death through ER vacuolization. © 2008 Elsevier Ltd. All rights reserved.
Number of references:29
Main heading:Cells
Controlled terms:Activation energy - Atomic force microscopy - Biological organs - Cell death - Concentration (process) - Cytology - Electric resistance - Energy transfer - Fluorescence - Fluorescence microscopy - Imaging techniques - Light emission - Luminescence - Microscopic examination - Morphology - Nucleic acids - Scanning probe microscopy
Uncontrolled terms:Atomic force microscope (AFM) - Cancer chemotherapeutic agents - Caspase-3 - Caspase-3 activation - Cell swelling - Cell-viability - Confocal fluorescence microscope - Confocal fluorescence microscopy - Cytoplasmic vacuolization - Endoplasmic reticulum - Endoplasmic reticulum (ER) - Fluorescence-resonance energy transfer - Human lung adenocarcinoma cells - Human lungs - Living cells - Morphological analysis - Morphological changes - Morphological characteristics - Paclitaxel - Plasmid transfection - Programmed cell death - Taxol - Vacuolization
Classification code:941.3 Optical Instruments - 802.3 Chemical Operations - 801.4 Physical Chemistry - 801 Chemistry - 746 Imaging Techniques - 951 Materials Science - 741.3 Optical Devices and Systems - 701.1 Electricity: Basic Concepts and Phenomena - 525.4 Energy Losses (industrial and residential) - 461.9 Biology - 461.2 Biological Materials and Tissue Engineering - 741.1 Light/Optics
DOI:10.1016/j.micron.2008.04.007
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711720442
Title:Image encryption based on joint transform correlator and phase-shifting interferometry
Authors:Shen, Li-Na (1); Li, Jun (1); Chang, Hong-Sen (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Shen, L.-N.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:10
Issue date:October 2008
Publication year:2008
Pages:2114-2117
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:An image encryption method combining three steps phase-shifting interferometry with dyadic permutations in the joint transform correlator based architecture is proposed. With a phase-only spatial light modulators the original image and two random phase masks are modulated simultaneously. The image information and the principal key are encoded to interferograms by the three phase-shifting interferometry and the interferograms are recorded by a CCD camera at the output plane; then the interferogram of the original image by the dyadic permutations is permuted. With the permutation key and the supplementary keys known, the clear retrieved image can be obtained at high speed by certain algorithm. This method is a combination of the optical encryption technique and digital encryption technique. Its feasibility and validity were verified by a series of computer simulations.
Number of references:20
Main heading:Cryptography
Controlled terms:Cameras - Charge coupled devices - Computational methods - Interferometers - Interferometry - Light modulation - Light modulators - Mathematical transformations - Phase shift
Uncontrolled terms:Digital encryptions - Dyadic permutations - High speeds - Image encryption - Image encryptions - Image informations - Interferogram - Interferograms - Joint transform correlator - Joint transform correlators - Optical encryption techniques - Original images - Phase-shifting interferometry - Random phase masks - Retrieved images - Spatial light modulators - Three phase - Three steps
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 942.2 Electric Variables Measurements - 921 Mathematics - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 921.3 Mathematical Transformations - 723 Computer Software, Data Handling and Applications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 703.1 Electric Networks - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 717.2 Optical Communication Equipment - 718 Telephone Systems and Related Technologies; Line Communications
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611520831
Title:Changes in optical properties of in vitro myocardium tissue due to heating in the visible and near-infrared range
Authors:Ao, Huilan (1); Xing, Da (1); Wei, Huajiang (1); Wu, Guoyong (2); Lu, Jianjun (2)
Author affiliation:(1) Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
Corresponding author:Ao, H.
(aohl@scnu.)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:5
Issue date:May 2008
Publication year:2008
Pages:792-796
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The effects of optical properties of myocardium tissue due to heating in the visible and near-infrared spectral range were investigated. A spectrophotometer was used to measure the diffuse reflectance and total transmittance of the tissue samples, and the inverse adding-doubling (IAD) method was applied to assess the absorption coefficients, the reduced scattering coefficients and the optical penetration depth of tissue from the measurements. The results of measurement show that the absorption and reduced scattering coefficients and optical penetration depths of myocardium tissues vary with the change of irradiation wavelength. There are a positive peaks at 550 nm for the absorption coefficients of both native and thermocoagulated (treated with 80°C) myocardium, and the peak values for native and thermocoagulated myocardium are 0.74 mm-1 and 1.16 mm-, respectively. There is a positive peak at 550 nm for the reduced scattering coefficients of native myocardium and the peak value is 0.25 mm-1, whereas the peak disappears after myocardium tissue treated with high temperature. Further more a new increase appears at the wavelength range of 590-625 nm. The absorption coefficient of myocardium tissue is not significantly changed by treating with lower temperature but increases slightly with higher temperature. The reduced scattering coefficient of myocardium tissue is significantly increasing with the increase of treating temperature. And the optical penetration depth of myocardium tissue is significantly decreasing with the descrease of treating temperature.
Number of references:19
Main heading:Tissue
Controlled terms:Heating - Infrared devices - Optical materials - Optical properties
Uncontrolled terms:Integrating-sphere - Inverse-adding-double method - Medical optics and biotechnology - Myocardium tissue - Slowly heated - Tissue optics
Classification code:461.2 Biological Materials and Tissue Engineering - 642.1 Process Heating - 643.1 Space Heating - 741.1 Light/Optics - 741.3 Optical Devices and Systems
DOI:10.3788/CJL20083505.0792
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711092640
Title:Microscopic three-dimensional imaging theory based on RIKES
Authors:Guo, Li Na (1); Tang, Zhi Lie (1); Xing, Da (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631, China; (2) MOE Key Laboratory of Laser Life Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Tang, Z.L.
(tangzhl@scnu.)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1089-1094
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:A novel nonlinear confocal microscopic imaging system based on Raman induced Kerr effect spectroscopy (RIKES) is presented in this paper. The three-dimensional (3-D) microscopic imaging theory is derived with the Fourier imaging theory and nonlinear optical principle. The impact of RIKES on the spatial resolution and imaging properties of confocal microscopic imaging system has been analyzed in detail by the imaging theory. It's proved that the RIKES nonlinear microscopic imaging system can effectively improve the imaging contrast and provide more characteristic information on Raman spectrum and optical nonlinear Kerr effect, thus greatly improving the imaging quality of confocal microscopic imaging system. It's shown that the spatial resolution of RIKES confocal microscopic imaging system is higher than that of two-photon confocal microscopic imaging system.
Number of references:18
Main heading:Imaging systems
Controlled terms:Confocal microscopy - Nonlinear optics - Optical Kerr effect - Raman scattering - Three dimensional
Uncontrolled terms:Fourier imaging theory - Microscopic imaging theory - Nonlinear imaging - Nonlinear optical principle
Classification code:723.5 Computer Applications - 741.1 Light/Optics - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 744.9 Laser Applications - 746 Imaging Techniques
Treatment:Theoretical (THR); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082611334577
Title:Bonding of seven carbonyl groups to a single metal atom: Theoretical study of M(CO)n (M = Ti, Zr, Hf; n = 7, 6, 5, 4)
Authors:Luo, Qiong (1); Li, Qian-Shu (1); Zhong, Heng Yu (3); Xie, Yaoming (5); King, R. Bruce (1); Schaefer III, Henry F. (5)
Author affiliation:(1) Center for Computational Quantum Chemistry, South China Normal University, Guangzhou, 510631, China; (2) School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China; (3) State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, China; (4) Institute of Chemical Physics, Beijing Institute of Technology, Beijing 100081, China; (5) Department of Chemistry, Center for Computational Chemistry, University of Georgia, Athens, GA 30602, United States
Corresponding author:Li, Q.-S.
(qsli@scnu.)
Source title:Journal of the American Chemical Society
Abbreviated source title:J. Am. Chem. Soc.
Volume:130
Issue:24
Issue date:June 18, 2008
Publication year:2008
Pages:7756-7765
Language:English
ISSN:00027863
CODEN:JACSAT
Document type:Journal article (JA)
Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States
Abstract:The equilibrium geometries, thermochemistry, and vibrational frequencies of the homoleptic metal-carbonyls of the group 4 elements, M(CO)n (M = Ti, Zr, Hf; n = 7, 6, 5, 4) were predicted using density functional theory. Analogous M(CO)n structures were found for all three metals. The global minima for the 18-electron M(CO)7 molecules are all singlet C3v capped octahedra. The global minima for the 16-electron M(CO)6 species are triplet M(CO)6 structures distorted from Oh symmetry to D3d symmetry. However, the corresponding singlet M(CO)6 structures lie within 5 kcal/mol of the triplet global minima. The global minima for M(CO)n (n = 5, 4) are triplet structures derived from the D3d distorted octahedral structures of M(CO)6 by removal of one or two CO groups, respectively. Quintet D3h trigonal bipyramidal structures for M(CO)5 and singlet Td tetrahedral structures for M(CO)4 are also found, as well as higher energy structures for M(CO)6 and M(CO)7 containing a unique CO group bonded to the metal atom through both M-C and M-O bonds. The dissociation energies M(CO)7 &rarr M(CO)6 + CO are substantial, indicating no fundamental problem in bonding seven CO groups to a single metal atom. © 2008 American Chemical Society.
Number of references:47
Main heading:Carbonylation
Controlled terms:Chemical modification - Cobalt alloys - Cobalt compounds - Thermochemistry
Uncontrolled terms:carbonyl groups - Equilibrium geometries - Group 4 - Homoleptic - Metal atoms - Vibrational frequencies
Classification code:549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 641.1 Thermodynamics - 802.2 Chemical Reactions - 804.1 Organic Compounds
DOI:10.1021/ja8003655
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084911757024
Title:A multicast wireless mesh network routing algorithm with ant colony optimization
Authors:Pan, Da-Ru (1); Xue, Yun (1); Zhan, Lu-Jun (1)
Author affiliation:(1) School of Physics and Telecommunication, South China Normal University, Guangzhou 510006, China
Corresponding author:Pan, D.-R.
(pandru@scnu.)
Source title:Proceedings of the 2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR
Abbreviated source title:Proc. Int. Conf. Wavelet Analysis and Pattern Recognition, ICWAPR
Volume:2
Monograph title:Proceedings of the 2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR
Issue date:2008
Publication year:2008
Pages:744-748
Article number:4635876
Language:English
ISBN-13:9781424422395
Document type:Conference article (CA)
Conference name:2008 International Conference on Wavelet Analysis and Pattern Recognition, ICWAPR
Conference date:August 30,2008 - August 31,2008
Conference location:Hong Kong, China
Conference code:74125
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Wireless Mesh Networks (WMN) are believed to be a highly promising technology and will play an increasingly important role in future generation wireless mobile networks. Routing in WMN is a challenging problem as a result of highly dynamic topology as well as bandwidth and energy constraints. The Swarm Intelligence paradigm, such as Ant Colony Optimization (ACO), has recently been demonstrated as an active approach for routing in both wired and wireless networks. We designed a novel ACO-based multicasting routing algorithm. In the proposed algorithm, a source-based approach is adapted to build a multicast tree among all the multicast members, and an evolutional scheme for the original multicast tree is designed to find a more optimal multicast tree. In addition the evolutional scheme also acts as a local recovery technique when some intermediate nodes move away. Compared with ODMRP and MAODV, the proposed algorithm performs better in terms of average delay, success ratio and efficiency. ©2008 IEEE.
Number of references:11
Main heading:Wireless networks
Controlled terms:Cellular automata - Feature extraction - Local area networks - Multicasting - Network routing - Optimization - Pattern recognition - Routing algorithms - Trees (mathematics) - Wavelet analysis - Wavelet transforms - Wireless local area networks (WLAN)
Uncontrolled terms:Ant Colony Optimization (ACO) - Ant Colony optimizations - Average delays - Challenging problems - Dynamic topologies - Energy constraints - Future generations - Intermediate nodes - Multicast - Multicast members - Multicast routing - Multicast trees - Multicasting routing algorithms - Routing - Success ratios - Swarm intelligences - Wired and wirelesses - Wireless Mesh Networks - Wireless mobile networks
Classification code:723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 723.5 Computer Applications - 741.1 Light/Optics - 751.1 Acoustic Waves - 921 Mathematics - 921.3 Mathematical Transformations - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 921.5 Optimization Techniques - 722.4 Digital Computers and Systems - 703.1 Electric Networks - 703.2.1 Electric Filter Analysis - 716 Telecommunication; Radar, Radio and Television - 716.3 Radio Systems and Equipment - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 721 Computer Circuits and Logic Elements - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 722.3 Data Communication, Equipment and Techniques
DOI:10.1109/ICWAPR.2008.4635876
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516243
Title:Methanol permeability and proton conductivity of Nafion membranes modified electrochemically with polyaniline
Authors:Huang, Q.M. (1); Zhang, Q.L. (1); Huang, H.L. (1); Li, W.S. (1); Huang, Y.J. (1); Luo, J.L. (3)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou, 510006, China; (2) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China; (3) Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 2G6, Canada
Corresponding author:Li, W.S.
(liwsh@scnu.)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:184
Issue:2
Issue date:October 1, 2008
Publication year:2008
Pages:338-343
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Nafion membrane was modified with polyaniline by electrochemical methods, including constant current, constant potential and potential cycling. The methanol permeability and the proton conductivity of the Nafion membranes with and without modification were determined by the electrochemical oxidation of the permeated methanol and electrochemical impedance spectroscopy, respectively. It is found from FTIR results that the polyaniline formed by electrochemical method is in emeraldine state. With the modification of polyaniline, the methanol permeability of the Nafion membrane is reduced by one decade but there is only a slight decrease in proton conductivity. The power density output of direct methanol fuel cell using polyaniline-modified Nafion membrane is 40% larger than that using pure Nafion membrane. The modification with polyaniline is better than that with polypyrrole. The methanol permeability of the polyaniline-modified Nafion is about half of that of the polypyrrole-modified Nafion but the proton conductivity of the former is higher than the later. © 2008 Elsevier B.V. All rights reserved.
Number of references:23
Main heading:Electrochemical impedance spectroscopy
Controlled terms:Capillarity - Cell membranes - Direct methanol fuel cells (DMFC) - Electric batteries - Electric conductivity - Electrochemical corrosion - Electrochemical oxidation - Fourier transform infrared spectroscopy - Fuel cells - Liquids - Membranes - Methanol - Methanol fuels - Nuclear fuel reprocessing - Proton conductivity - Protons - Solids
Uncontrolled terms:Constant Current - Constant Potential - Direct Methanol Fuel Cell - Electro-chemical method - Emeraldine state - Methanol permeability - Nafion membrane - Nafion membranes - Permeated methanol - Poly pyrrole - Polyaniline - Potential cycling - Power densities
Classification code:801 Chemistry - 801.4.1 Electrochemistry - 804.1 Organic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 933 Solid State Physics - 951 Materials Science - 702.2 Fuel Cells - 461.2 Biological Materials and Tissue Engineering - 523 Liquid Fuels - 539.1 Metals Corrosion - 621.1.2 Nuclear Fuels for Fission Reactors - 631.1 Fluid Flow, General - 701.1 Electricity: Basic Concepts and Phenomena - 702.1 Electric Batteries
DOI:10.1016/j.jpowsour.2008.06.013
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911245330
Title:The influence of nonlocality on solitons in nematic liquid crystals
Authors:Zhu, Ye-Qing (0); Long, Xue-Wen (0); Hu, Wei (0); Cao, Long-Gui (0); Yang, Ping-Bao (0); Guo, Qi (0)
Corresponding author:Zhu, Y.-Q.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:4
Issue date:April 2008
Publication year:2008
Pages:2260-2265
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:In this paper, we theoretically investigated the influence of nonlocality on (1 + 2)-dimensional spatial solitons in undoped nematic liquid crystals (NLCs). We confirmed that the nonlinear index coefficient and the general characteristic length of the nonlinear nonlocality for the NLC are dependent on the pretilt angle of the NLC molecules. Then the Schrodinger-type nonlinear equation in strong nonlocality was given and from the equation the analytical expressions of the single soliton and the critical power were respectively obtained. In experiment, we varied the degree of nonlocality by changing the bias voltage and indirectly determined the relation between the critical power and pretilt angle. At last, by comparison of analytical solutions with the numerical simulation and the experimental result, we verified that our expressions are precise.
Number of references:17
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811368782
Title:The propagation properties of symmetrical hyperbolic secant beams in weakly nonlocal nonlinear bulk media
Authors:Xiao, Yi (0); Guo, Qi (0); Yang, Xiang-Bo (0); Lan, Sheng (0)
Corresponding author:Xiao, Y.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:6
Publication year:2008
Pages:3553-3561
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The propagation of (2 + 1)D paraxial symmetrical hyperbolic secant beams in weakly nonlocal nonlinear media is studied by variational approach. A series of differential equations which describe the evolutions of the width, the phase, the phase front curvature, and the amplitude of the beam are obtained. The critical power for a beam propagating as a spatial optical soliton in weakly nonlocal nonlinear media is also obtained. A quantitative depiction of the steadying effect of nonlocality on the propagation of a beam is obtained through the steadiness analyse, which provides a self-consistent explanation of the transition from unsteady local kerr solitons to steady weakly nonlocal solitons. The results of numerical method agree with that of variational calculations, implying that hyperbolic secant function is a good approximation to a (2 + l)D weakly nonlocal spatial optical soliton.
Number of references:39
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080811102089
Title:Climatic changes indicated by trace elements in the Chagelebulu Stratigraphic Section, Badain Jaran Desert, China, since 150 kyr B.P
Authors:Yang, Yi (1); Li, Bao-sheng (1); Qiu, Shi-fan (1); Wu, Zheng (1); Gao, Quan-zhou (3); Li, Yun-zhuo (1)
Author affiliation:(1) School of Geography Science, South China Normal University, Guangzhou, Guangdong 510631, China; (2) State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi 710061, China; (3) School of Geography Science, Zhongshan University Guangzhou, Guangdong 510631, China
Corresponding author:Yang, Y.
(yyi1980@)
Source title:Geochemistry International
Abbreviated source title:Geochem. Int.
Volume:46
Issue:1
Issue date:January 2008
Publication year:2008
Pages:96-103
Language:English
ISSN:00167029
Document type:Journal article (JA)
Publisher:IAPC Nauka/Interperiodica, P.O. Box 1831, Birmingham, AL 35201-1831, United States
Abstract:This paper analyzes the contents of 16 trace elements in the strata of the Chagelebulu Stratigraphic Section, Badain Jaran Desert, since 150 kyr B.P. and discovered that both the contents of the relatively stable elements, such as P, Mn, Zr, Cr, Pb, Rb, Nb, Y, and the relatively active elements, such as V, Sr, Ni, Cu, Zn, As fluctuated with the sedimentary cycles composed of 25 aeolian dune sands, loess, paleosols, lacustrine facies, alluvial, and colluvial sandy gravels, showing 25 cycles of low-high variation and a fluctuant jagged graph of chemical elements' migration and accumulation. The lower contents of the elements in the aeolian sands show the erosion, migration and deposition of wind power in a cold and arid climate. The relative accumulation of sandy-gravel layers, especially the lacustrine facies, loess, and paleosols correlates with the section's position in the special depression relief with a background of warm and humid climate. The above-mentioned variational characteristics were mainly caused by 25 cycles of arid-cold, windy, and warm-humid climatic fluctuation on the southern fringe of the Badain Jaran Desert since 150 kyr B.P. The essential reason bears a relationship with the back and force swing of the East Asia winter monsoon and summer monsoon influenced by climatic vicissitudes during the glacial and interglacial periods. © MAIK Nauka 2008.
Number of references:23
Main heading:Climate change
Controlled terms:Erosion - Sedimentary rocks - Stratigraphy - Trace elements - Wind effects
Uncontrolled terms:Active elements - Sandy-gravel layers - Sedimentary cycles - Stable elements
Classification code:443.1 Atmospheric Properties - 481.1 Geology - 481.2 Geochemistry - 482.2 Minerals - 483.1 Soils and Soil Mechanics
Treatment:General review (GEN)
DOI:10.1007/s11476-008-1009-7
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082311303271
Title:Design and study of fiber refractive index sensor based on intensity modulation
Authors:Su, Hui (1); Huang, Xu-Guang (1); Wu, Yi-Ting (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Su, H.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:4
Issue date:April 2008
Publication year:2008
Pages:713-716
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:A refractive index fiber sensor system of liquid based on Fresnel refractivity is developed. The common FC/PC fiber end is used to be detector tip. The light circuit is simple and the system is easy to operate. The basic principle and data procession method are discussed. Using the relative intensity method, the influence brought by the stability of light source and insertion losses are eliminated effectively. The theory analysis and experiment results prove the possibility of this method. The analysis of measured data demonstrates that the measurement precision can achieve 2 × 10-4. The system also can be used to measure the refractive index of solid, gas and other parameters which are involved with refractive index.
Number of references:18
Main heading:Fiber optic sensors
Controlled terms:Insertion losses - Light sources - Refractive index
Uncontrolled terms:Fiber sensors - Intensity modulation - Refractive index measurement - Refractivity - Relative measurement
Classification code:732.2 Control Instrumentation - 741.1 Light/Optics - 741.3 Optical Devices and Systems
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711720421
Title:Measurement method of particle's refractive index by dynamic-static light scattering
Authors:Yue, Cheng-Feng (1); Yang, Guan-Ling (1); He, Zhen-Jiang (1); Li, Feng-Guo (1); Peng, Li (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Yue, C.-F.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:10
Issue date:October 2008
Publication year:2008
Pages:2009-2013
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:A measurement method of particle's refractive index by dynamic-static light scattering was introduced. In this method, at first, the line-width function of samples with unknown refractive index was measured by dynamic light scattering method. then scattering light intensity distribution under different input refractive index values was calculated by static light scattering principle. Secondly, the scattering light intensity distributions were measured by light intensity detector. Thirdly, the scattering light intensity distributions was compared with the measured intensity distribution. By calculating their root square deviation, the smallest root square deviation will be found, and the corresponding input refractive index value will be regard as measured value of particle's refractive index. This method can be used to particles with size from submicron to micron, and the particle sample can be mono or poly-disperse.
Number of references:9
Main heading:Light scattering
Controlled terms:Dynamic light scattering - Image segmentation - Light refraction - Optical properties - Refraction - Refractive index - Refractometers - Scattering
Uncontrolled terms:Dynamic light scattering methods - Intensity distributions - Light intensities - Measured values - Measurement methods - Particle - Particle samples - Scattering lights - Static light scattering - Static light scatterings - Sub microns - Width functions
Classification code:711 Electromagnetic Waves - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 744.9 Laser Applications - 941.3 Optical Instruments
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084311652273
Title:Asymptotic patterns of a structured population diffusing in a two-dimensional strip
Authors:Weng, Peixuan (1); Liang, Dong (2); Wu, Jianhong (2)
Author affiliation:(1) School of Mathematics, South China Normal University, Guangzhou, 510631, China; (2) Department of Mathematics and Statistics, York University, Toronto, Ont. M3J 1P3, Canada
Corresponding author:Weng, P.
(wengpx@scnu.)
Source title:Nonlinear Analysis, Theory, Methods and Applications
Abbreviated source title:Nonlinear Anal Theory Methods Appl
Volume:69
Issue:11
Issue date:December 1, 2008
Publication year:2008
Pages:3931-3951
Language:English
ISSN:0362546X
CODEN:NOANDD
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:In this paper, we derive a population model for the growth of a single species on a two-dimensional strip with Neumann and Robin boundary conditions. We show that the dynamics of the mature population is governed by a reaction-diffusion equation with delayed global interaction. Using the theory of asymptotic speed of spread and monotone traveling waves for monotone semiflows, we obtain the spreading speed c*, the non-existence of traveling waves with wave speed 0 < c < c*, and the existence of monotone traveling waves connecting the two equilibria for c ≥ c*. © 2007 Elsevier Ltd. All rights reserved.
Number of references:32
Main heading:Boundary conditions
Controlled terms:Asymptotic analysis - Boundary value problems - Linear equations - Speed - Theorem proving - Two dimensional
Uncontrolled terms:Asymptotic patterns - Monotone semiflows - Spreading speed - Structured population model - Traveling waves - Two-dimensional strip
Classification code:931.1 Mechanics - 921.6 Numerical Methods - 921 Mathematics - 902.1 Engineering Graphics - 723.5 Computer Applications - 723.4 Artificial Intelligence - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
DOI:10.1016/j.na.2007.10.027
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081711219258
Title:Photoacoustic tomography imaging using a 4f acoustic lens and peak-hold technology
Authors:Wei, Yadong (1); Tang, Zhilie (1); Zhang, Hanchao (1); He, Yongheng (1); Liu, Haifeng (1)
Author affiliation:(1) School of Physics and Telecom Engineering, Laboratory of Photonic Information Technology, South China Normal University, 510006, Guangzhou, China; (2) Department of Electronic and Engineering, Dongguan University of Technology, 523808, Dongguan, China
Corresponding author:Tang, Z.
(tangzhl@scnu.edu.nc)
Source title:Optics Express
Abbreviated source title:Opt. Express
Volume:16
Issue:8
Issue date:April 14, 2008
Publication year:2008
Pages:5314-5319
Language:English
E-ISSN:10944087
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:In this paper we present a new high-contrast photoacoustic tomography (PAT) imaging system using a 4f acoustic lens, a 64-element linear transducer array and peak-hold technology. This PAT imaging system has been developed to obtain three-dimensional (3D) PAT images of experimental samples. By utilizing a 4f acoustic lens, the photoacoustic (PA) signals generated from the sample are directly imaged on the imaging plane and collected by the 64-element linear transducer array, which changes them into the corresponding electronic signals. Then we can get one-dimensional (ID) images from the electronic signals using a peak detection-and-hold circuit. After vertical scanning with a stepping motor on the imaging plane, a 2D PA image of the sample is successfully obtained. Combined with the time-resolved technique, we can then get 3D PAT images. The results show that the reconstructed images agree well with the original samples. © 2008 Optical Society of America.
Number of references:18
Main heading:Lenses
Controlled terms:Imaging systems - Photoacoustic effect - Tomography - Transducers
Uncontrolled terms:Peak hold technology - Photoacoustic tomography imaging
Classification code:704 Electric Components and Equipment - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques - 751.1 Acoustic Waves
Treatment:Theoretical (THR)
DOI:10.1364/OE.16.005314
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711092652
Title:Fast photoacoustic system based on an acoustic lens and the peak detection technology
Authors:Zhang, Han Chao (1); Tang, Zhi Lie (1); He, Yong Ng (1); Guo, Li Na (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631, China
Corresponding author:Zhang, H.C.
(zhanghanchao409@.cn)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1157-1161
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:A fast photo-acoustic (PA) imaging system was developed and tested on phantom sample, which consists of an acoustic lens, a multi-element linear transducer array, and the peak detection circuit. The multi-element linear transducer array consists of 64 elements. By utilizing an acoustic lens, the PA signals generated from the sample are imaged and detected by a multi-element linear transducer array, which directly changes the PA signals into the homologous electronic signals. Thus we can map the image more rapidly, with the peak detection circuit, which was designed specially. Compared to other exiting technology and algorithm, the PA imaging system based on an acoustic lens and the peak detection technology was characterized with speediness and real-time. The images reconstructed in this experiment have high definition and resolution, and may have potential for developing an appliance for clinical diagnosis.
Number of references:13
Main heading:Acoustic imaging
Controlled terms:Algorithms - Image reconstruction - Imaging systems - Photoacoustic effect - Real time systems - Transducers
Uncontrolled terms:Clinical diagnosis - Electronic signals - Multi-element linear transducer array - Peak detection technology - Photoacoustic system
Classification code:751.2 Acoustic Properties of Materials - 751.1 Acoustic Waves - 746 Imaging Techniques - 741.1 Light/Optics - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 704 Electric Components and Equipment
Treatment:Theoretical (THR); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082511318572
Title:Wavefronts for a non-local reaction-diffusion population model with general distributive maturity
Authors:Weng, Peixuan (1); Wu, Jianhong (2)
Author affiliation:(1) School of Mathematics, South China Normal University, Guangzhou 510631, China; (2) Center for Disease Modeling, Department of Mathematics and Statistics, York University, Toronto, ON M3J 1P3, Canada
Corresponding author:Weng, P.
(wengpx@scnu.)
Source title:IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications)
Abbreviated source title:IMA J Appl Math
Volume:73
Issue:3
Issue date:June 2008
Publication year:2008
Pages:477-495
Language:English
ISSN:02724960
E-ISSN:14643634
CODEN:IJAMDM
Document type:Journal article (JA)
Publisher:Oxford University Press, Great Clarendon Street, Oxford, OX2 6DP, United Kingdom
Abstract:We consider the Al-Omari and Gourley non-local reaction-diffusion population model with distributed maturity. Existence of monotone wavefronts for some particular probability distribution of maturity that permits the linear chain trick was previously obtained; here, we consider the most general form of such a distribution using some comparison arguments for abstract functional differential equations with infinite delay and a fixed point approach combined with the upper and lower solutions technique. © The Author 2008. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved.
Number of references:21
Main heading:Probability distributions
Controlled terms:Differential equations - Diffusion - Mathematical models - Reaction kinetics
Uncontrolled terms:Infinite distributed maturity - Monotone travelling front - Reaction-diffusion equation
Classification code:802.2 Chemical Reactions - 921.2 Calculus - 921.6 Numerical Methods - 922.1 Probability Theory - 931.2 Physical Properties of Gases, Liquids and Solids
Treatment:Theoretical (THR)
DOI:10.1093/imamat/hxn007
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111269904
Title:Listening to light by fast photoacoustic tomography based on a digital phased array system
Authors:Xiang, Liangzhong (1); Xing, Da (1); Yang, Diwu (1); Yang, Sihua (1); Hua, Guo (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68260E
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Photoacoustic imaging technique, which provided high ultrasonic resolution and high optical contrast tissue images, can overcome the disadvantages of pure optical imaging by measurement of laser-induced sound waves. The waves produced by tissue are high-frequency ultrasounds, meaning that they cannot be heard by human ear. However, it can be picked up with ultrasonic transducer and analyze them with a computer. The laser-induced ultrasonic signals from a biological sample can be used to reveal the tissues structure based on optical contrast. In current experiment system, an integrity multi-element synthetic aperture focusing (M-SAF) photoacoustic imaging system using real-time digital beamformer is developed. This system relies on pumping laser source to irradiate the biological tissue to produce photoacoustic signal, a linear ultrasonic transducer array is connected to a multichannel signal acquisition and real-time digital beam-formation system providing techniques of real-time dynamic receiving focus and dynamic receiving apodization to process the photoacoustic signal. Each element of the transducer array has a thin cylinder ultrasonic lens to select 2D image plane and suppress the out-of-plane signals to realize photoacoustic computed tomography. This method and system can provide a fast and reliable photoacoustic tomography approach that could be applied to noninvasive imaging and clinic diagnosis.
Number of references:13
Main heading:Optical tomography
Controlled terms:Computerized tomography - Diagnosis - Photoacoustic effect - Signal detection
Uncontrolled terms:Digital phased array system - Optical imaging - Photoacoustic tomography
Classification code:461.6 Medicine and Pharmacology - 716.1 Information Theory and Signal Processing - 723.5 Computer Applications - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 751.1 Acoustic Waves
Treatment:Experimental (EXP)
DOI:10.1117/12.760223
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411186635
Title:Short-range interactions between strongly nonlocal spatial solitons
Authors:Hu, Wei (2); Ouyang, Shigen (2); Yang, Pingbao (2); Guo, Qi (1); Lan, Sheng (2)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China; (2) Laboratory of Light Transmission Optics, South China Normal University, Guangzhou 510631, China
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:77
Issue:3
Issue date:March 24, 2008
Publication year:2008
Article number:033842
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:Short-range interactions between strongly nonlocal spatial solitons were investigated and found to depend periodically on the soliton phase difference. Two solitons in close proximity can be intertrapped via the strong nonlocality, and propagate together as a whole. The trajectory of the propagation is a straight line with a slope controlled by the phase difference. Experimental results carried out in nematic liquid crystals agree quantitatively with the prediction. The modification of the Snyder-Mitchell model is also discussed. Our study suggests that the phenomenon in which optical beams can be steered by controlling the phase difference could be used in all-optical information processing. © 2008 The American Physical Society.
Number of references:34
Main heading:Solitons
Controlled terms:Data processing - Light propagation - Mathematical models - Particle interactions - Phase shift
Uncontrolled terms:Aspatial solitons - Short-range interactions - Soliton phase difference
Classification code:703.1 Electric Networks - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 921.1 Algebra - 931.3 Atomic and Molecular Physics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1103/PhysRevA.77.033842
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081211164625
Title:Investigation on tribological behavior of Fe-based alloy coating formed by laser cladding
Authors:Shen, Longguang (1); Zhang, Qingmao (1); Song, Jie (1); Liao, Jianhong (1)
Author affiliation:(1) Laboratory of Laser Processing Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Zhang, Q.
(zhangqm@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6825
Monograph title:Lasers in Material Processing and Manufacturing III
Issue date:2008
Publication year:2008
Article number:68251P
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470003
Document type:Conference article (CA)
Conference name:Lasers in Material Processing and Manufacturing III
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:71541
Sponsor:Society of Photo-Optical Instrumentation Engineers (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:In order to investigate the tribological performance of laser clad coatings on die steel, laser cladding techniques were adopted with Fe-based alloy powders. The wear tests were carried out by using laser clad layers as low samples and GCr15 steel ball as upper samples with HT-500 wear tester. The morphologies of wear scars were observed with optical microscopy, and the wear width and the depth of the wear samples were measured. In the meantime, the wear rate was calculated theoretically. Under dry sliding condition, As the tests show, friction coefficient decreased with the load increase gradually, then increased. And the wear performance of 300g load was better than that of 500g load under dry sliding condition. Under lubricant condition, with the increase of load, the friction coefficient decreased gradually. And the friction coefficient, wear rate and wear width under lubricant are smaller than that under dry friction with the same load.
Number of references:13
Main heading:Iron alloys
Controlled terms:Coating techniques - Laser cladding - Lubricants - Optical microscopy
Uncontrolled terms:Dry friction - Friction coefficient - Laser clad layers - Wear rate
Classification code:545.2 Iron Alloys - 607.1 Lubricants - 741.1 Light/Optics - 744.9 Laser Applications - 813.1 Coating Techniques
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.785625
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011776894
Title:Detection of singlet oxygen and superoxide anion with the fluorescence of FCLA
Authors:Wei, Yan-Chun (1); Luo, Shi-Ming (1); Xu, Wei (1)
Author affiliation:(1) MOE Key Lab. of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Wei, Y.-C.
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:11
Issue date:November 2008
Publication year:2008
Pages:2633-2635
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:Reactive oxygen species (ROS) plays a major role in various life systems and is critical in understanding the mechanisms of photodynamic therapy (PDT), seed vigour and plant stress, and so on. Researchers have dedicated much effort for detecting singlet oxygen and suqeroxide anion. FCLA (the fluoresceinyl cypridina luciferin analog) is a singlet oxygen and superoxide anion specific chemiluminescence probe. Typical chemiluminescence signal is relatively weak and its detection at single cell level is rather difficult. In the present study, the fluorescence of FCLA at 515 nm was investigated and was found to increase significantly during the ROS oxidative reaction. With fluorescence imaging technique, ROS can be detected by evaluating the spatial distribution and the dynamic changes in FCLA fluorescence. The technique is proved to have high sensitivity and excellent signal-to-noise ratio compared to direct CL measurement. With minimal cytotoxicity and excellent ROS selectivity, the FCLA fluorescence imaging technique can be a powerful new means in real-time in vivo and in situ single oxygen detection at the single cell level.
Number of references:18
Main heading:Oxygen
Controlled terms:Chemiluminescence - Fluorescence - Imaging systems - Imaging techniques - Ions - Light emission - Light measurement - Luminescence - Negative ions - Nonmetals - Photodynamic therapy - Signal to noise ratio
Uncontrolled terms:Chemiluminescence probes - Chemiluminescence signals - Cl measurements - Cyp- ridina luciferin analogs - Dynamic changes - FCLA - Fluorescence imaging - High sensitivities - In-situ - In-vivo - Oxidative reactions - Plant stresses - Reactive Oxygen species - Signal-to-Noise ratios - Single cells - Single oxygens - Singlet oxygen - Singlet oxygens - Spatial distributions - Superoxide - Superoxide anion
Classification code:931.3 Atomic and Molecular Physics - 804 Chemical Products Generally - 802.2 Chemical Reactions - 801 Chemistry - 746 Imaging Techniques - 941.4 Optical Variables Measurements - 741.1 Light/Optics - 723.2 Data Processing and Image Processing - 716.1 Information Theory and Signal Processing - 701.1 Electricity: Basic Concepts and Phenomena - 461.6 Medicine and Pharmacology - 741 Light, Optics and Optical Devices
DOI:10.3964/j.issn.1000-0593(2008)11-2633-03
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911597533
Title:Properties of certain subclasses of multivalent analytic functions involving the Dziok-Srivastava operator
Authors:Huang, Ya-Yuan (0); Liu, Ming-Sheng (0)
Corresponding author:Liu, M.-S.
(liumsh65@)
Corr. author affiliation:School of Mathematical Sciences, South China Normal University, Guangzhou, 510631 Guangdong, China
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:204
Issue:1
Issue date:Oct 1 2008
Publication year:2008
Pages:137-149
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., New York, NY 10010, United States
Abstract:In this paper, the authors introduce and investigate the various properties of two subclasses Sp, kl, m (α1 ; h) and Kp, kl, m (α1 ; h) of multivalent analytic functions. In particular, some sufficient conditions for the subclass Sp, kl, m fenced(α1 ; frac(1 + z, 1 - z)) of analytic functions, argument properties, the growth theorems, distortion theorems and covering theorems are obtained. Some of the results, presented in this paper, would generalize and extend the corresponding results of earlier authors. © 2008 Elsevier Inc. All rights reserved.
Number of references:19
DOI:10.1016/j.amc.2008.06.025
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711525768
Title:Dispersion measurement for optical fiber in ring cavity using fiber laser sideband spectrum
Authors:Ye, Hui (1); Xu, Wencheng (1); Luo, Zhichao (1); Song, Chuangxing (1); Chen, Weicheng (1); Feng, Jie (2); Liu, Songhao (1)
Author affiliation:(1) Guangdong Provincial Key Laboratory of Photonic Information Technology, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangdong 510006, China; (2) School of Physics and Telecommunication Engineering, South China Normal University, Guangdong 510006, China
Corresponding author:Ye, H.
(dickson0113@)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Volume:28
Issue:7
Issue date:July 2008
Publication year:2008
Pages:1323-1326
Language:Chinese
ISSN:02532239
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:Based on the sideband spectrum produced by the interference of dispersion wave and solution wave in the passively mode-locked fiber laser. The wavelength offset from the central wavelength in the sideband spectrum is measured, the total cavity dispersion is obtained with the relation between the sideband offset and the total cavity dispersion. Ring cavities with different lengths of the same type fibers have different dispersions. The slope of the variation of dispersions corresponding to the fiber length is the dispersion coefficient to be measured. The platform of a passively mode-locked fiber laser is built, and the dispersion coefficient of G. 652 fiber has been measured, whose experimental value is 16 ps/(nm &bull km) that is agrees well with the conventional value of 17 ps/(nm &bull km).
Number of references:17
Main heading:Fibers
Controlled terms:Computer networks - Dispersion (waves) - Fiber lasers - Lasers - Molecular physics - Optical fibers
Uncontrolled terms:Femtosecond pulse - Fiber laser - Optical measurement - Ring cavity - Sideband spectrum
Classification code:931.3 Atomic and Molecular Physics - 819.4 Fiber Products - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 744.4 Solid State Lasers - 744.1 Lasers, General - 741.1.2 Fiber Optics - 723 Computer Software, Data Handling and Applications - 722 Computer Systems and Equipment - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 711.1 Electromagnetic Waves in Different Media
DOI:10.3788/AOS20082807.1323
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090711909805
Title:Real-time fluorescence analysis of taxol-induced human lung adenocarcinoma (ASTC-a-1) PCD
Authors:Chen, Tong-Sheng (1); Wang, Xiao-Ping (2); Sun, Lei (1); Wang, Hui-Ying (1); Wang, Long-Xiang (1)
Author affiliation:(1) MOE Key Libratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Anesthesiology, First Affiliated Hospital of Jinan University, Guangzhou 510632, China
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser
Abbreviated source title:Guangdianzi Jiguang
Volume:19
Issue:12
Issue date:December 2008
Publication year:2008
Pages:1706-1709
Language:Chinese
ISSN:10050086
CODEN:GUJIE9
Document type:Journal article (JA)
Publisher:Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China
Abstract:The characteristics of taxol-induced-ASTC-a-1 PCD resembling paraptosis were studied by fluorescence probes and confocal microscope. The erRFP plasmid was used to probe the endoplasmic reticulum, and the GFP plasmid was used to probe the change of cells shape. Rhodamine 123 was used to probe the mitochongdria, and the Hoechst33258 was used to probe the nuclear condensation and DNA cleavage, and PI was used to verify the breakage of cells membrane. Our results show that taxol induced ASTC-a-1 cell paraptosis is caused by progressive swelling of mitochondria and the endoplasmic reticulum, and the taxol-induced concentration-dependent cytoplasm vacuolization is independent of caspases inhibited by z-VAD-fmk. Hoechst33258 experimental results show that taxol did not induce nuclear condensation cell apoptosis and cells membrane breakage which is the typical characteristics of cell necrosis. Taxol induces the ASTC-a-1 cells paraptosis by cytoplasm vacuolization due to swelling of the endoplasmic reticulum and the mitochondria.
Number of references:14
Main heading:Probes
Controlled terms:Cell death - Cell membranes - Cells - Condensation - Cytology - Fluorescence - Mitochondria - Nucleic acids - Organic acids
Uncontrolled terms:Caspases - Cell apoptosis - Cell necrosis - Concentration dependents - Confocal microscopes - Cytoplasm vacuolization - DNA cleavages - Endoplasmic reticulums - Fluorescence analysis - Fluorescence probes - Human lungs - Paraptosis - Programe cell death(PCD) - Rhodamine 123 - Taxol
Classification code:943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments - 804.1 Organic Compounds - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 802.3 Chemical Operations - 741.1 Light/Optics - 461.9 Biology - 461.2 Biological Materials and Tissue Engineering - 801.2 Biochemistry
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111269420
Title:On the perturbation bound in unitarily invariant norms for subunitary polar factors
Authors:Li, Wen (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, W.
(liwen@scnu.)
Source title:Linear Algebra and Its Applications
Abbreviated source title:Linear Algebra Its Appl
Volume:429
Issue:2-3
Issue date:July 15, 2008
Publication year:2008
Pages:649-657
Language:English
ISSN:00243795
CODEN:LAAPAW
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:Let Crm × n be the set of m × n complex matrices with rank r, and let A ∈ Crm × n and over(A, ∼) = A + E ∈ Crm × n have the generalized polar decompositionsA = QH and over(A, ∼) = over(Q, ∼) over(H, ∼) .In this article, a new perturbation bound for subunitary polar factors in any unitarily invariant norm is given by∥ over(Q, ∼) - Q ∥ &le frac(3, σr + over(σ, ˜)r) ∥ E ∥,where σr, over(σ, ∼)r are the smallest positive singular values of A and over(A, ∼), respectively, which improves some existing perturbation bounds. © 2008 Elsevier Inc. All rights reserved.
Number of references:19
Main heading:Perturbation techniques
Controlled terms:Boundary conditions - Singular value decomposition
Uncontrolled terms:Subunitary polar factor - Unitarily invariant norm
Classification code:921 Mathematics
Treatment:Theoretical (THR)
DOI:10.1016/j.laa.2008.03.025
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083311459368
Title:Digital change detection by post-classification comparison of RS data in land use of Guangzhou
Authors:Fan, Fenglei (1)
Author affiliation:(1) School of Geography, South China Normal University, Guangzhou 510631, China
Corresponding author:Fan, F.
(fanfenglei@gig.)
Source title:Journal of Information and Computational Science
Abbreviated source title:J. Inf. Comput. Sci.
Volume:5
Issue:3
Issue date:May 2008
Publication year:2008
Pages:1061-1067
Language:Chinese
ISSN:15487741
Document type:Journal article (JA)
Publisher:Sun Yat-sen (Zhongshan) University, 135 Xingangxilu, Guangzhou, 510275, China
Abstract:Remote sensing has long time been an important component of regional planning for applications ranging form urban fringe change detection to monitoring change detection of land use. On the other hand, the technologies and methods of change detection also have evolved dramatically during past 20 years. So it has been well recognized that the change detection had become the best methods for researching dynamic change of land use by multi-temporal remotely-sensed data. The purpose of this paper is to detect land use change surrounding the area of Guangzhou using TM image (Dec 22, 1998) and ETM+ image (Jan. 10, 2003). A county administrative boundary vector layer of the Pearl River Delta (2000) was used to get the subset image of Guangzhou. Unsupervised classification is performed by the K-Means method. At last, two-time subset images of Guangzhou are compared on a pixel-by-pixel basis using the post-classification comparison method and the from-to change matrix is produced, the land use change information obtained.
Number of references:15
Main heading:Land use
Controlled terms:Classification (of information) - Copying - Pixels - Planning - Regional planning - Remote sensing - Signal detection - Space optics
Uncontrolled terms:Change detection - Comparison methods - Dynamic changes - ETM+ image - Guangzhou - K-means method - Land use changes - Land use/land cover - Long time - Multi-temporal - Pearl River delta - Post-classification - RS data - TM images - Unsupervised classification
Classification code:745.2 Reproduction, Copying - 731.1 Control Systems - 722.2 Computer Peripheral Equipment - 912.2 Management - 716.1 Information Theory and Signal Processing - 403.2 Regional Planning and Development - 403 Urban and Regional Planning and Development - 656.1 Space Flight
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411180764
Title:Analysis of exercise boundary of American interest rate option
Authors:Yi, Fa-Huai (1); Peng, Xin-Ling (1); Chen, Ying-Shan (1); Zhou, Zhe-Wei (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China
Corresponding author:Yi, F.-H.
(fhyi@scnu.edu.c)
Source title:Applied Mathematics and Mechanics (English Edition)
Abbreviated source title:Appl. Math. Mech. Engl. Ed.
Volume:29
Issue:3
Issue date:March 2008
Publication year:2008
Pages:409-420
Language:English
ISSN:02534827
CODEN:AMMEEQ
Document type:Journal article (JA)
Publisher:Springer Science and Business Media Netherlands, Van Godewijckstraat 30, Dordrecht, 3311, Netherlands
Abstract:By applying the variational inequality technique, we analyzed the behavior of the exercise boundary of the American-style interest rate option under the assumption that the interest rates obey a mean-reverting random walk as given by the Vasicek model. The monotonicity, boundedness and C ∞- smoothness of the exercise boundary are proved in this paper. © 2008 Comitee of Applied Mathematics.
Number of references:12
Main heading:Boundary conditions
Controlled terms:Linear matrix inequalities - Mathematical models - Random processes - Variational techniques
Uncontrolled terms:Exercise boundaries - Interest rate options - Variational inequalities - Vasicek models
Classification code:921 Mathematics - 921.1 Algebra - 921.2 Calculus - 922.1 Probability Theory
Treatment:Theoretical (THR)
DOI:10.1007/s10483-008-0312-y
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711531781
Title:Micro-raman spectroscopy monitor methemoglobin induced by sodium nitrite in whole blood
Authors:Shen, Gaoshan (1); Gu, Huaimin (1); Yan, Tianxiu (1); Wei, Huajian (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, SCNU, Guangzhou, China
Corresponding author:Gu, H.
(guhm@scnu.)
Source title:2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
Abbreviated source title:Int. Conf. Bioinformatics Biomed. Eng., iCBBE
Monograph title:2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
Issue date:2008
Publication year:2008
Pages:1476-1479
Article number:4535578
Language:English
ISBN-13:9781424417483
Document type:Conference article (CA)
Conference name:2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
Conference date:May 16,2006 - May 18,2006
Conference location:Shanghai, China
Conference code:73341
Sponsor:IEEE Engineering in Medicine and Biology Society (EMB); Univ. Iowa, Cent. Bioinformatics and Computational Biology; Cent. Devices and Radiological Health, Food and Drug Adm.; Wuhan Univ., Advanced Research Center for Science and Technology; Shanghai Jiaotong Univ., College of Life Science and Technology
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:In this paper, we demonstrated that micro-Raman spectroscopy could be used to detect methemoglobin in whole blood.
Number of references:15
Main heading:Spectrum analysis
Controlled terms:Biocommunications - Bioinformatics - Biomedical engineering - Blood - Information science - Raman scattering - Raman spectroscopy - Sodium
Uncontrolled terms:Hemoglobin - Methemoglobin - Micro-Raman spectroscopy - Raman spectroscopty - Sodium nitrite
Classification code:903 Information Science - 921 Mathematics - 922.2 Mathematical Statistics - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 741.1 Light/Optics - 461.1 Biomedical Engineering - 461.2 Biological Materials and Tissue Engineering - 461.8.2 Bioinformatics - 549.1 Alkali Metals - 716.1 Information Theory and Signal Processing - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723 Computer Software, Data Handling and Applications
DOI:10.1109/ICBBE.2008.698
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258599
Title:Dynamic activation of Src induced by low-power laser irradiation in living cells mediated by reactive oxygen species
Authors:Zhang, Juntao (1); Gao, Xuejuan (1); Xing, Da (1); Liu, Lei (1)
Author affiliation:(1) MOE Key Libratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Zhang, J.
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68260K
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Low-power laser irradiation (LPLI) leads to photochemical reaction and then activates intracellular several signaling pathway. Reactive oxygen species (ROS) are considered to be the primary messengers produced by LPLI. Here, we studied the signaling pathway mediated by ROS upon the stimulation of LPLI. Src tyrosine kinases are well-known targets of ROS and can be activated by oxidative events. Using a Src reporter based on fluorescence resonance energy transfer (FRET) technique, we visualized the dynamic Src activation in Hela cells immediately after LPLI. Moreover, Src activity was enhanced by increasing the duration of LPLI. In addition, our results suggested that ROS were key mediators of Src activation, as ROS scavenger, vitamin C decreased and exogenous H 2O2 increased the activity of Src. Meanwhile, Go¨6983 loading did not block the effect of LPLI. CCK-8 experiments proved that cell vitality was prominently improved by LPLI with all the doses we applied in our experiments ranging from 3 to 25J/cm2. The results indicated that LPLI/ROS/Src pathway may be involved in the LPLI biostimulation effects.
Number of references:14
Main heading:Cells
Controlled terms:Energy transfer - Enzyme activity - Fluorescence - Laser beam effects - Resonance - Vitamins
Uncontrolled terms:Dynamic activation - Low-power laser irradiation (LPLI) - Reactive oxygen species (ROS)
Classification code:931.1 Mechanics - 744.8 Laser Beam Interactions - 741.1 Light/Optics - 525.4 Energy Losses (industrial and residential) - 461.9 Biology - 461.7 Health Care - 461.2 Biological Materials and Tissue Engineering
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.760229
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711731640
Title:Preparation and enantioseparation characteristics of a novel chiral stationary phase based on mono (6A-azido-6A-deoxy)-per(p-chlorophenylcarbamoylated) β-cyclodextrin
Authors:Zhang, Zhen-Bin (1); Zhang, Wei-Guang (1); Luo, Wen-Jun (1); Fan, Jun (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, GuangZhou, 510006, China
Corresponding author:Zhang, W.-G.
(wgzhang@scnu.)
Source title:Journal of Chromatography A
Abbreviated source title:J. Chromatogr. A
Volume:1213
Issue:2
Issue date:December 12, 2008
Publication year:2008
Pages:162-168
Language:English
ISSN:00219673
CODEN:JCRAEY
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:A novel cyclodextrin (CD) derivative-mono (6A-azido-6A-deoxy)-per(p-chlorophenylcarbamoylated) β-CD was synthesized and chemically immobilized onto the surface of amino-functionalized silica gel to afford a structurally well-defined chiral stationary phase (CSP) for high performance liquid chromatography (HPLC). The p-chlorophenyl groups introduced on the β-CD are π-electron deficient (i.e., π-acidic moieties); therefore the stronger π-π interaction which plays an important role in chiral recognition process is expected between aromatic analytes and this type of the CSP. The enantiomeric separations of 11 piperazine derivatives as well as six racemates have been successfully achieved on this CSP in the normal and reversed phase modes. © 2008 Elsevier B.V. All rights reserved.
Number of references:27
Main heading:Chromatographic analysis
Controlled terms:Acids - Amines - Body fluids - Chromatography - Colloids - Computer operating procedures - Data storage equipment - Derivatives - Gelation - High performance liquid chromatography - High pressure liquid chromatography - Liquid chromatography - Phase separation - Silica - Silica gel
Uncontrolled terms:Analytes - Chiral recognitions - Chiral stationary phase - Electron deficients - Enantiomer separation - Enantiomeric separations - Enantioseparation - Functionalized silicas - Piperazine derivatives - Reversed phase modes - Stationary phase
Classification code:801.3 Colloid Chemistry - 802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812 Ceramics, Refractories and Glass - 801.2 Biochemistry - 461.2 Biological Materials and Tissue Engineering - 482.2 Minerals - 641.1 Thermodynamics - 722 Computer Systems and Equipment - 722.1 Data Storage, Equipment and Techniques - 723 Computer Software, Data Handling and Applications - 801 Chemistry
DOI:10.1016/j.chroma.2008.10.038
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083211435191
Title:Involvement of Bax and caspase-3 activation in Chan-Su-induced ASTC-a-1 cell apoptosis
Authors:Sun, Lei (1); Wang, Xiao-Ping (2); Chen, Tong-Sheng (1); Wang, Long-Xiang (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Anesthesiology, First Affiliated Hospital, Jinan University, Guangzhou 510632, China; (3) Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Journal of X-Ray Science and Technology
Abbreviated source title:J X Ray Sci Technol
Volume:16
Issue:2
Issue date:2008
Publication year:2008
Pages:131-142
Language:English
ISSN:08953996
CODEN:JXSTE5
Document type:Journal article (JA)
Publisher:IOS Press, Nieuwe Hemweg 6B, Amsterdam, 1013 BG, Netherlands
Abstract:Chan-Su (CS), a traditional Chinese medicine, is one of the most potent Chinese medicines currently used in cancer chemoprevention and treatment. However, the molecular mechanism of CS-induced-apoptosis is still unclear. This study investigated the molecular mechanism of CS-induced apoptosis using fluorescence resonance energy transfer (FRET) and confocal fluorescence microscope techniques. CS dose-dependently inhibited cell viability cytotoxicity, which was assayed by Cell Counting Kit (CCK-8) and Hoechst33258 staining. Bax translocation to mitochondria was observed in single living cell transfected with GFP-Bax plasmid. The mitochondrial membrane potential (ΔΨm) loss was also measured in CS-treated cells. And ASTC-a-1 cell expressed stably with SCAT3 plasmid was used to examine if caspase-3 was activated by CS. z-VAD-fmk, a broad-caspase spectrum inhibitor, was found to significantly reduce the inhibition of CS on the cell viability. Overall, our data demonstrated that CS induced ASTC-a-1cells apoptosis in a dose-dependent manner, and Bax, caspase-3 and mitochondrial stress were involved in CS-induced apoptosis. Our findings extend the knowledge about the cellular signaling mechanisms mediating CS-induced apoptosis. © 2008 - IOS Press and the authors. All rights reserved.
Number of references:37
Main heading:Cell membranes
Controlled terms:Activation energy - Cell death - Cells - Cytology - Drug products - Energy transfer - Fluorescence - Health - Light emission - Luminescence - Mechanisms - Medicine - Painting
Uncontrolled terms:Apoptosis - Bax translocation - Cancer chemoprevention - Caspase-3 - Caspase-3 activation - Cell apoptosis - Cell counting - Cell-viability - Chan-Su (CS) - Chinese medicines - Confocal fluorescence microscope - Fluorescence resonance energy transfer (FRET) - Fluorescence-resonance energy transfer - Induced apoptosis - Living cells - Mitochondrial membrane potential - Molecular mechanisms - Traditional Chinese Medicine
Classification code:801.4 Physical Chemistry - 741.1 Light/Optics - 601.3 Mechanisms - 813.1 Coating Techniques - 525.4 Energy Losses (industrial and residential) - 461.6 Medicine and Pharmacology - 461.2 Biological Materials and Tissue Engineering - 461.9 Biology
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090211845746
Title:A web-based data mining system for forest resource planning system
Authors:Tang, Hua (1); Xing, Li-Ning (2)
Author affiliation:(1) Computer Engineering Department of Nanhai Campus, South China Normal University, Foshan, 528225, China; (2) College of Information System and Management, National University of Defense Technology, Changsha, 410073, China
Corresponding author:Tang, H.
Source title:Proceedings - 5th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2008
Abbreviated source title:Proc. - Int. Conf. Fuzzy Syst. Knowl. Discov., FSKD
Volume:4
Monograph title:Proceedings - 5th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2008
Issue date:2008
Publication year:2008
Pages:399-403
Article number:4666418
Language:English
ISBN-13:9780769533056
Document type:Conference article (CA)
Conference name:5th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2008
Conference date:October 18,2008 - October 20,2008
Conference location:Jinan, Shandong, China
Conference code:74641
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Forest resource planning systems provide the infrastructure and tools needed to establish effective forest management. The present resource planning system only provides past records for decision making. In this paper, the web-based data mining technique is applied to the decision making of forest resource planning. The proposed system makes use of the three-tier Web service architecture, gives employees an intuitive Web interface to access and manage information, and integrates the internal operations. Analysis tools are provided to help the staff make administrative decisions. The solution provides the users with an office automation module, a decision support module, an internal audit module and a system integrator module. This forest resource planning system provides an integrated solution to interconnect each system within an organization. © 2008 IEEE.
Number of references:7
Main heading:Knowledge based systems
Controlled terms:Administrative data processing - Civil aviation - Data mining - Data processing - Data warehouses - Database systems - Decision support systems - Fuzzy logic - Fuzzy systems - Information management - Knowledge management - Military operations - Natural resources - Office automation - Online systems - Planning - Resource allocation - Warehouses
Uncontrolled terms:Analysis tools - Data mining systems - Data mining techniques - Decision supports - Forest managements - Forest resource planning - Infra structures - Integrated solutions - Internal audits - Internal operations - Manage informations - Online analytical processing - Resource planning - System integrators - Web interfaces - Web service architectures
Classification code:723.2 Data Processing and Image Processing - 723.3 Database Systems - 723.4 Artificial Intelligence - 723.4.1 Expert Systems - 723.5 Computer Applications - 961 Systems Science - 731.1 Control Systems - 903.3 Information Retrieval and Use - 912.2 Management - 912.3 Operations Research - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 903.2 Information Dissemination - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 402.1 Industrial and Agricultural Buildings - 403 Urban and Regional Planning and Development - 404.1 Military Engineering - 431.1 Air Transportation, General - 444 Water Resources - 481.3.1 Geothermal Phenomena - 501 Exploration and Prospecting - 512 Petroleum and Related Deposits - 694.4 Storage - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
DOI:10.1109/FSKD.2008.601
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011136730
Title:Interactions between strong nonlocal optical spatial solitons in nematic liquid crystals
Authors:Yang, Ping-Bao (0); Cao, Long-Gui (0); Hu, Wei (0); Zhu, Ye-Qing (0); Guo, Qi (0); Yang, Xiang-Bo (0)
Corresponding author:Yang, P.-B.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:1
Issue date:January 2008
Publication year:2008
Pages:285-290
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:In this paper, we investigate the interactions between optical spatial solitons in nematic liquid crystals (NLC) with numerical simulations and experiments. The response function is exponential-decay function in NLC, which is different from the Snyder-Mitchell model. Through numerical simulations, we discovered that the crosspoint of soliton interaction is in inverse proportion to the square root of injection power in NLC. We also found that the position of crosspoint is independent of the distance between solitons in strong nonlocal Gauss function response, but it is not the same with exponential-decay function in NLC. Through experiments, we found the positions of crosspoint is in inverse proportion to the square root of inject power, it is also related to the critical power of soliton formation and the distance between solitons.
Number of references:15
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211645283
Title:Variational investigation of Hermite-Gaussian beam propagation in nonlocal Kerr media
Authors:Bai, Dong-Feng (0); Guo, Qi (0); Hu, Wei (0)
Corresponding author:Bai, D.-F.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:9
Issue date:September 2008
Publication year:2008
Pages:5684-5689
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:The reduced Lagrange density of nonlocal nonlinear Schrodinger equation (NNLSE) is obtained by expanding the real symmetric response function in Taylor's series in strongly nonlocal Kerr media. The problem of higher-order beam propagation can be analyzed by a variational approach, the equations are obtained for the evolution during propagation of the parameters of the trial solution and exact analytical Hermite-Gaussian(HG) solutions are found. HG solitons are formed when the input power is equal to the critical power. We demonstrated that the analytical HG solutions are in good agreement with the numerical simulations in the case of strong nonlocality.
Number of references:21
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211645269
Title:Generation of C-NOT gate, swap gate and phase gate based on a two-dimensional ion trap
Authors:Ai, Ling-Yan (0); Yang, Jian (0); Zhang, Zhi-Ming (0)
Corresponding author:Ai, L.-Y.
Corr. author affiliation:Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:9
Issue date:September 2008
Publication year:2008
Pages:5589-5592
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:We study the realization of quantum logic gates in the interacting system of a two-dimensional trapped ion and two laser beams. We simplify the Hamiltonian of the system by Choosing the frequency detuning of laser fields and the transition frequency between the internal states of the ion, and furthermore, we describe the realization of a C-NOT gate, a swap gate and a phase gate. During these processes, the system needs to meet the Lamb-Dicke limit, and the Rabi oscillation frequency should be far smaller than the phonon frequency.
Number of references:19
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611708816
Title:Study of real and counterfeit RMB 100 banknotes by using raman spectroscopy
Authors:Liao, Yubo (1); Lai, Zhaosheng (2); Meng, Yaoyong (1); Lei, Haodong (1)
Author affiliation:(1) Photonic Chinese Medicine Laboratory, South China Normal University, Guangzhou 510631, China; (2) School of Physics and Electronic Information Science, Gannan Teachers College, Ganzhou 341000, China
Corresponding author:Liao, Y.
(bobocome@)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:10
Issue date:October 2008
Publication year:2008
Pages:1619-1622
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:Raman spectra of real and counterfeit RMB 100 banknotes excited by an infrared laser with wavelength of 785 nm were obtained in the portrait watermark, security thread, latent image for the face value and OVI printing features. Difference between the spectra of real and counterfeit RMB banknotes was found. Meanwhile, difference of counterfeit banknotes from different counterfeiters was also observed. The study shows that Raman spectroscopy could be a potential tool not only for the identification of counterfeit and altered RMB, but also for the sources of the counterfeit RMB.
Number of references:11
Main heading:Infrared spectroscopy
Controlled terms:Infrared devices - Photoresists - Raman scattering - Raman spectroscopy - Spectroscopic analysis - Spectrum analysis
Uncontrolled terms:Identification of forged banknotes - Infrared laser - Infrared lasers - Latent images - Potential tools - Raman spectrums - Security threads
Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 922.2 Mathematical Statistics - 931.2 Physical Properties of Gases, Liquids and Solids - 941 Acoustical and Optical Measuring Instruments - 941.4 Optical Variables Measurements - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 921 Mathematics - 801 Chemistry - 745.1 Printing - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 813.2 Coating Materials
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084511683273
Title:Synthesis and characterization of biodegradable poly(lactic acid-co-glycine) via direct melt copolymerization
Authors:Wang, Zhaoyang (1); Hou, Xiaona (1); Mao, Zhengzhou (1); Ye, Ruirong (1); Mo, Yangqing (1); Finlow, David E. (2)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou-510006, China; (2) Shawnee State University, Portsmouth, OH 45662-4344, United States
Corresponding author:Wang, Z.
(wangwangzhaoyang@)
Source title:Iranian Polymer Journal (English Edition)
Abbreviated source title:Iran Polym J Eng Ed
Volume:17
Issue:10
Issue date:2008
Publication year:2008
Pages:791-798
Language:English
ISSN:10261265
E-ISSN:10261265
CODEN:IPJOFF
Document type:Journal article (JA)
Publisher:Polymer Research Center of Iran, P.O. Box 14965/159, Teheran, 14977, Iran
Abstract:Instead of the traditional two-step method with cyclic intermediates, a direct reaction of D,L-lactic acid (D,L-LA) and glycine (Gly) as monomers (molar feed ratio LA/Gly: 90/10) and SnO (0.7 wt%) as catalyst is carried out to synthesize a biodegradable poly(lactic acid-co-glycine) [P(LA-co-Gly)] via melt copolycondensation at 170°C, absolute pressure of 70 Pa, for 8 h, following a prepolymerization step. The structure of the copolymer was characterized by FTIR and 1H NMR techniques. The GPC results show that the weight average molecular weight (M¯w) of the copolymer P(LA-co-Gly) is 3600 g/mol. Under the condition of different molar feed ratios the highest M¯w was found to be 5200 with molar feed ratio LA/Gly:98/2. Other characterizations, e.g., intrinsic viscosity, solubility, DSC, and XRD indicated that the copolymer solubility in chloroform and tetrahydrofuran (THF) decreased with the increasing feed charge of Gly and the lowest solubility was found when the molar feed ratio was below LA/Gly:70/30. However, the modified polylactic acid is readily soluble in DMSO. The crystallinity of copolymer gradually disappears as the molar feed ratio of D,L-LA decreases. For LA/Gly ≥ 90/10, the XRD pattern has two diffraction peaks, close to 16.8° and 19.1°, the same position as poly(D,L-lactic acid) (PDLLA). For the soluble P(LA-co-Gly) the intrinsic viscosity, M¯w and its dispersity (M¯w/M¯n) decrease gradually with the increase of feed charge of Gly. These results, especially the molecular weight of the copolymer appear to meet the requirements necessary for a drug delivery applications.
Number of references:40
Main heading:Organic polymers
Controlled terms:ABS resins - Acids - Body fluids - Characterization - Copolymerization - Dimethyl sulfoxide - Drug delivery - Fourier transform infrared spectroscopy - Hydrodynamics - Lactic acid - Molecular weight - Monomers - Nuclear magnetic resonance - Organic acids - Plastic products - Polycondensation - Polymer blends - Polymers - Solubility - Ternary systems - Viscosity - X ray analysis - X ray diffraction analysis
Uncontrolled terms:Absolute pressures - Biodegradable - Copolycondensation - Crystallinity - Diffraction peaks - Direct reactions - Dispersity - Drug delivery applications - Drug delivery systems - Intrinsic viscosities - L-lactic acids - Molar feed ratios - NMR techniques - Polylactic acids - Step methods - Synthesis - Synthesis and characterizations - Tetrahydrofuran - Weight averages - XRD patterns
Classification code:951 Materials Science - 817.1 Polymer Products - 816.1 Processing of Plastics and Other Polymers - 815.2 Polymerization - 815.1.1 Organic Polymers - 815.1 Polymeric Materials - 804.1 Organic Compounds - 822.3 Food Products - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 932.2 Nuclear Physics - 933.1.1 Crystal Lattice - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 804 Chemical Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 421 Strength of Building Materials; Mechanical Properties - 461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 531.1 Metallurgy - 531.2 Metallography - 631.1 Fluid Flow, General - 631.1.1 Liquid Dynamics - 631.2 Hydrodynamics - 801 Chemistry - 801.2 Biochemistry - 801.4 Physical Chemistry - 802.2 Chemical Reactions
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082511324071
Title:Effects of sapphire substrates surface treatment on epitaxial ZnO thin films grown by MOCVD
Authors:Wang, Yinzhen (1); Chu, Benli (1); He, Qinyu (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631, China
Corresponding author:Wang, Y.
(agwyz@.cn)
Source title:Vacuum
Abbreviated source title:Vacuum
Volume:82
Issue:11
Issue date:June 19, 2008
Publication year:2008
Pages:1229-1232
Language:English
ISSN:0042207X
CODEN:VACUAV
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:The surface treatment effects of sapphire substrate on the quality of epitaxial ZnO thin films grown by metal-organic chemical vapor deposition (MOCVD) were studied. The sapphire substrates have been investigated by means of atomic force microscopy (AFM) and X-ray diffraction rocking curves (XRCs). The results show that sapphire substrate surfaces have the best-quality by CMP with subsequent chemical etching. The surface treatment effects of sapphire substrate on the ZnO thin films were examined by X-ray diffraction (XRD), atomic force microscopy (AFM) and photoluminescence (PL) measurements. Results show that the intensity of (002) diffraction peak of ZnO thin films on sapphire substrates treated by CMP with subsequent chemical etching is strongest. FWHM of (002) diffraction peak is narrowest and the intensity of UV peak of PL spectrum is strongest, indicating surface treatment on sapphire substrate preparation may improve ZnO thin films crystal quality and photoluminescent property. © 2008 Elsevier Ltd. All rights reserved.
Number of references:15
Main heading:Thin films
Controlled terms:Atomic force microscopy - Epitaxial growth - Etching - Metallorganic chemical vapor deposition - Surface treatment - X ray diffraction - Zinc oxide
Uncontrolled terms:Crystal quality - Photoluminescent property - Sapphire substrate
Classification code:931.3 Atomic and Molecular Physics - 804.2 Inorganic Compounds - 802.3 Chemical Operations - 802.2 Chemical Reactions - 741.3 Optical Devices and Systems - 714.2 Semiconductor Devices and Integrated Circuits - 539 Metals Corrosion and Protection; Metal Plating
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.vacuum.2008.01.049
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711720146
Title:Optical properties of a periodic one-dimensional semiconductor-organic photonic crystal
Authors:Chen, Jing (1); Tang, Jiyu (1); Han, Peide (2); Yan, Lingyun (2); Chen, Junfang (1)
Author affiliation:(1) College of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Corresponding author:Chen, J.
(chenjing1002972@)
Source title:Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors
Abbreviated source title:Pan Tao Ti Hsueh Pao
Volume:29
Issue:10
Issue date:October 2008
Publication year:2008
Pages:1879-1882
Language:English
ISSN:02534177
CODEN:PTTPDZ
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:Theoretical calculations via the transfer matrix method (TMM) are performed to investigate optical properties of one-dimensional semiconductor-organic photonic crystals (SOPC) with periodic conjugated polymer (3-octylthio-phenes, P30T)/AlN multilayer structure. The SOPC presents incomplete photonic band gap behavior in the UV region. P30T/AlN multilayers with two pairs of 30 nm-P3OT and 30 nm-AlN layers exhibit a photonic band gap at a central wavelength of about 275 nm, and the highest reflectivity reaches 98%. Furthermore, the band gaps are confirmed to be tunable by adjusting the lattice period and the filling fraction. As a consequence, the SOPC is important for achieving materials with an incomplete band gap in the UV region.
Number of references:18
Main heading:Photonic band gap
Controlled terms:ABS resins - Crystal atomic structure - Crystal structure - Crystallography - Electric conductivity - Energy gap - Gallium alloys - Multilayer films - Multilayers - Optical devices - Optical materials - Optical multilayers - Optical properties - Periodic structures - Photonic crystals - Photonics - Polymer films - Polymers - Powders - Semiconducting organic compounds - Semiconductor materials - Silicon on insulator technology - Transfer matrix method
Uncontrolled terms:AlN - AlN layers - Band gaps - Central wavelengths - Filling fractions - Lattice periods - Multilayer structures - Organic photonic crystals - Photonic bands - Semi-conductors - Theoretical calculations - TMM method - Transfer matrixes - UV regions
Classification code:933.1.1 Crystal Lattice - 744 Lasers - 801.4 Physical Chemistry - 804 Chemical Products Generally - 813.2 Coating Materials - 815.1 Polymeric Materials - 815.1.1 Organic Polymers - 921 Mathematics - 931.3 Atomic and Molecular Physics - 933 Solid State Physics - 933.1 Crystalline Solids - 741.3 Optical Devices and Systems - 531.2 Metallography - 536 Powder Metallurgy - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 701.1 Electricity: Basic Concepts and Phenomena - 741.1 Light/Optics - 712 Electronic and Thermionic Materials - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 717 Optical Communication - 712.1 Semiconducting Materials
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081711222724
Title:Actively mode-locked femtosecond pulse fiber laser
Authors:Song, Fang (1); Xu, Wencheng (1); Shen, Minchang (1); Liu, Songhao (1); Wang, Ke (2); Yang, Shuwen (2)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information Photoelectric Science and Technology, South China Normal University, Guangzhou 510006, China; (2) Information Engineering School, Shenzhen University, Shenzhen 518060, China
Corresponding author:Song, F.
(songfangdbv@)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:3
Issue date:March 2008
Publication year:2008
Pages:347-350
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:An actively mode-locked femtosecond pulse fiber laser with coarse wavelength division multiplexing (CWDM) as the filter was successfully achieved. When the laser was pumped at 186 mW, the mode-locked pulses centered at 1550 nm with 10.2 nm bandwidth (corresponding to 247 fs pulse width) was obtained at the repetition rate of 2.5 GHz. The average output power of the laser was 1.3 mW.
Number of references:11
Main heading:Fiber lasers
Controlled terms:Bandwidth - Laser mode locking - Ultrashort pulses - Wavelength division multiplexing
Uncontrolled terms:Actively mode locking - Femtosecond pulse - Repetition rate
Classification code:716.1 Information Theory and Signal Processing - 741.1.2 Fiber Optics - 744.1 Lasers, General - 744.4 Solid State Lasers
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011401749
Title:Identical particle model of vision adaptation
Authors:Huang, Ping (1); Liu, Cheng-Yi (1)
Author affiliation:(1) Laboratory of Laser Sports Medicine, South China Normal University, Guangzhou 510631, China; (2) Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
Corresponding author:Huang, P.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:6
Issue date:June 2008
Publication year:2008
Pages:1221-1223
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:The retina and cortex are correlated by the identical particle model. The vision system is modeled as identical particle system, and its radiation transition is studied by using time quantum theory of radiation-matter interaction. The identical particles form coherent states, the transition probability of the superradiant state is a liner function of N2 and N3 (N is the particle number), and the one of the subradiant state is zero, which is supported by its successful primary explanation of the coherence of vision cells and pigments, respectively, and the co-action of retina and cortex in the vision adaptation of darkness and brightness. Identical particle model might hold for vision adaptation, and its further integration with Retinex theory will give a clue for the further research of vision adaptation.
Number of references:15
Main heading:Quantum computers
Controlled terms:Quantum theory - Visual communication
Uncontrolled terms:Coherent states - Identical particles - Particle modeling - Particle systems - Time quantum - Transition (Jel Classifications:E52 ,E41 ,E31) - Transition probability (TP) - Vision systems
Classification code:717.1 Optical Communication Systems - 722 Computer Systems and Equipment - 931.4 Quantum Theory; Quantum Mechanics
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911930161
Title:A new detection method for crosstalk delay faults in VLSI circuits using chaotic ant colony algorithms
Authors:Pan, Zhongliang (1); Chen, Ling (1); Zhang, Guangzhao (2)
Author affiliation:(1) School of Physics and Telecommunications Engineering, South China Normal University, Guangzhou 510006, China; (2) Department of Electronics and Communications, Sun Yat-sen University, Guangzhou 510275, China
Corresponding author:Pan, Z.
(panz@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:7130
Monograph title:Fourth International Symposium on Precision Mechanical Measurements
Issue date:2008
Publication year:2008
Article number:71305Y
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:4th International Symposium on Precision Mechanical Measurements
Conference date:August 25,2008 - August 29,2009
Conference location:Hefei/Jiuhua Mountain, Anhui, China
Conference code:75385
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:In the current circuit design technology, due to increasing device density and operation speed, crosstalk effects are induced between circuit elements. A new method for the detection of crosstalk faults in digital circuits is presented in this paper, the method is based on both the energy function model of digital circuits and the chaotic ant colony algorithms. First of all, the energy function models of basic gate circuits are constructed, then the energy function corresponding to a digital circuit is built. The energy function of a circuit is the summation of all energy functions of the gates in the circuit. The test vectors of crosstalk delay faults in the circuit are produced by computing the minimal energy states of energy functions. Secondly, a chaotic ant colony algorithm is designed to compute the minimal energy states. Experimental results show the method proposed in this paper is able to produce the test vectors of crosstalk delay faults if there are the test vectors for the faults, therefore the high fault coverage can be obtained by the proposed method. © 2008 SPIE.
Number of references:14
Main heading:Integrated circuit manufacture
Controlled terms:Crosstalk - Delay circuits - Digital integrated circuits - Fault detection - Global optimization - Mechanical variables measurement - VLSI circuits
Uncontrolled terms:Ant colony algorithms - Circuit elements - Crosstalk delays - Crosstalk effect - Crosstalk faults - Current circuits - Delay faults - Detection methods - Energy function - Energy state - Fault coverages - Gate circuits - If there ares - Operation speed - Test vectors
Classification code:943.2 Mechanical Variables Measurements - 921.5 Optimization Techniques - 721.3 Computer Circuits - 718.1 Telephone Systems and Equipment - 716.3 Radio Systems and Equipment - 714.2 Semiconductor Devices and Integrated Circuits - 713.5 Other Electronic Circuits - 711.1 Electromagnetic Waves in Different Media - 706.2 Electric Power Lines and Equipment - 703.1 Electric Networks - 422 Strength of Building Materials; Test Equipment and Methods
DOI:10.1117/12.819774
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258674
Title:PUMA promotes Bax translocation by competitive binding to Bcl-Xl during UV-induced apoptosis
Authors:Zhang, Yingjie (1); Xing, Da (1); Wu, Yinyuan (1); Liu, Lei (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570N
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Ultraviolet (UV) irradiation can induce apoptosis through both the membrane death receptor and the intrinsic apoptotic signaling pathways as DNA-damaging agents. PUMA, a BH3-only Bcl-2 family protein, plays an essential role in DNA damage-induced apoptosis. Bax, also a Bcl-2 family member, translocates from the cytosol to the mitochondrial membrane during UV-induced apoptosis. However, the regulation of Bax activation induced by UV irradiation remains poorly understood. In this study, the FRET (fluorescence resonance energy transfer) technique was used to study the interactions of Bax, Bcl-Xl, and PUMA in ASTC-a-1 cells. The results show that Bax translocated from the cytosol to the mitochondrial membrane at about 7 h after UV irradiation, and the translocation can not be blocked completely when overexpressed Bcl-xl. Moreover, The interaction of Bax and Bcl-Xl weakened markedly. In addition, Co-immunoprecipitation shows that PUMA released Bax by directly binding to Bcl-XL after UV irradiation in ASTC-a-1 cells. Taken together, these results indicated that PUMA can promote Bax translocation by binding to BcI-Xl during UV-induced apoptosis.
Number of references:28
Main heading:Cell death
Controlled terms:DNA sequences - Mitochondria - Proteins - Ultraviolet radiation
Uncontrolled terms:Bax translocation - Competitive binding
Classification code:461.2 Biological Materials and Tissue Engineering - 461.9 Biology - 741.1 Light/Optics - 804.1 Organic Compounds
Treatment:Theoretical (THR)
DOI:10.1117/12.762028
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082211279374
Title:PCR-free quantitative detection of genetically modified organism from raw materials. An electrochemiluminescence-based bio bar code method
Authors:Zhu, Debin (1); Tang, Yabing (1); Xing, Da (1); Chen, Wei R. (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Engineering and Physics, College of Mathematics and Science, University of Central Oklahoma, Edmond, OK 73034, United States
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Analytical Chemistry
Abbreviated source title:Anal. Chem.
Volume:80
Issue:10
Issue date:May 15, 2008
Publication year:2008
Pages:3566-3571
Language:English
ISSN:00032700
CODEN:ANCHAM
Document type:Journal article (JA)
Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States
Abstract:A bio bar code assay based on oligonucleotide-modified gold nanoparticles (Au-NPs) provides a PCR-free method for quantitative detection of nucleic acid targets. However, the current bio bar code assay requires lengthy experimental procedures including the preparation and release of bar code DNA probes from the target-nanoparticle complex and immobilization and hybridization of the probes for quantification. Herein, we report a novel PCR-free electrochemiluminescence (ECL)-based bio bar code assay for the quantitative detection of genetically modified organism (GMO) from raw materials. It consists of tris(2,2′- bipyridyl) ruthenium (TBR)-labeled bar code DNA, nucleic acid hybridization using Au-NPs and biotin-labeled probes, and selective capture of the hybridization complex by streptavidin-coated paramagnetic beads. The detection of target DNA is realized by direct measurement of ECL emission of TBR. It can quantitatively detect target nucleic acids with high speed and sensitivity. This method can be used to quantitatively detect GMO fragments from real GMO products. © 2008 American Chemical Society.
Number of references:34
Main heading:Bar codes
Controlled terms:Chemiluminescence - Gold - Nanoparticles - Nucleic acids - Oligonucleotides - Sensitivity analysis
Uncontrolled terms:Electrochemiluminescence - Quantitative detection
Classification code:933 Solid State Physics - 921 Mathematics - 804.1 Organic Compounds - 802.2 Chemical Reactions - 801.2 Biochemistry - 761 Nanotechnology - 741.1 Light/Optics - 723.2 Data Processing and Image Processing - 547.1 Precious Metals - 461.9 Biology - 461.2 Biological Materials and Tissue Engineering
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1021/ac0713306
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111269903
Title:Photoacoustic and thermoacoustic imaging application in cancer early detection and treatment monitoring
Authors:Da, Xing (1); Liangzhong, Xiang (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Da, X.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68260B
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Laser-based photoacoustic imaging and microwave-based thermoacoustic imaging, combining the advantages of both the high image contrast that results from electromagnetic absorption and the high resolution of ultrasound imaging, could be the next successful generation imaging techniques in biomedical application. It can provide an effective approach of tissue structure and functional images to study the architectures, physiological and pathological properties and metabolisms of biological tissues. This paper is focused on photoacoustic and thermoacoustic imaging application in cancer early detection and treatment monitoring. A unique photoacoustic imaging system was used to detect tumors neovascularization associated with angiogenesis in a rat animal model. We also developed the imaging system to monitor the vascular damage during photodynamic therapy treatment. This method could be potentially used to guide PDT and other phototherapies using vascular changes during treatment to optimize treatment protocols, by choosing appropriate types and doses of photosensitizers, and doses of light. Potentially development of photoacoustic imaging and thermoacoustic imaging to employing in functional and molecular imaging also has been discussed. Especially, these imaging modalities can be further developed by using the contrast agents which modified with tumor-targeting antibodies to realize cancer early detection and cancer target treatment monitoring.
Number of references:13
Main heading:Medical imaging
Controlled terms:Antibodies - Oncology - Patient monitoring - Photoacoustic effect
Uncontrolled terms:Cancer early detection - Cancer treatment monitoring - Optical imaging - Photoacoustic imaging
Classification code:461.1 Biomedical Engineering - 461.6 Medicine and Pharmacology - 461.9.1 Immunology - 741.1 Light/Optics - 746 Imaging Techniques - 751.1 Acoustic Waves
Treatment:Experimental (EXP)
DOI:10.1117/12.760230
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711542375
Title:A novel evaluation method basing on support vector machines
Authors:Xian, Guang-Ming (1); Zeng, Bi-Qing (1)
Author affiliation:(1) Computer Engineering Department, Nanhai Campus, South China Normal University, Foshan 528225, China
Corresponding author:Xian, G.-M.
(Xgm20011@)
Source title:Proceedings - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Abbreviated source title:Proc. - Int. Conf. Multimedia Ubiquitous Eng., MUE
Monograph title:Proceedings - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Issue date:2008
Publication year:2008
Pages:316-319
Article number:4505742
Language:English
ISBN-10:0769531342
ISBN-13:9780769531342
Document type:Conference article (CA)
Conference name:2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Conference date:April 24,2008 - April 26,2008
Conference location:Busan, Korea, Republic of
Conference code:73172
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Recently support vector machine (SVM) has become a more and more popular classification tool. We presented our two-phase, efficient, and fair evaluation method for DRMs (digital right management system) basing on SVM. Influence of three difference methods and test set number on evaluation result is discussed. After analysized by binary logistic regression, odds ratio comparison of SVM with multi phase fuzzy synthesized evaluation and FCM illustrates that SVM is the most excellent in these three approaches. Through detailed experimental evaluations under various data set of samples and approaches, our evaluation method of SVM is illustrated to be scalable and accurate. © 2008 IEEE.
Number of references:12
Main heading:Support vector machines
Controlled terms:Computer networks - Gears - Learning systems - Materials handling - Multilayer neural networks - Vectors
Uncontrolled terms:Evaluation methods - International conferences
Classification code:921.1 Algebra - 731.5 Robotics - 723.5 Computer Applications - 723.4 Artificial Intelligence - 723 Computer Software, Data Handling and Applications - 722 Computer Systems and Equipment - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 691 Bulk Handling and Unit Loads - 601.2 Machine Components - 461.4 Ergonomics and Human Factors Engineering - 461.1 Biomedical Engineering
DOI:10.1109/MUE.2008.111
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911247320
Title:Ultrafast carrier dynamics in undoped and p -doped InAsGaAs quantum dots characterized by pump-probe reflection measurements
Authors:Liu, Hai-Ying (1); Meng, Zi-Ming (1); Dai, Qiao-Feng (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Liu, Song-Hao (1); Lan, Sheng (1); Yang, Tao (2)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Technology, South China Normal University, Guangzhou, Guangdong 510006, China; (2) Nano-Optoelectronics Laboratory, Institute of Semiconductors, Chinese Academy of Science, P.O. Box 912, Bejing 100083
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Journal of Applied Physics
Abbreviated source title:J Appl Phys
Volume:103
Issue:8
Issue date:2008
Publication year:2008
Article number:083121
Language:English
ISSN:00218979
CODEN:JAPIAU
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:We investigate the dependence of the differential reflection on the structure parameters of quantum dot (QD) heterostructures in pump-probe reflection measurements by both numerical simulations based on the finite-difference time-domain technique and theoretical calculations based on the theory of dielectric films. It is revealed that the value and sign of the differential reflection strongly depend on the thickness of the cap layer and the QD layer. In addition, a comparison between the carrier dynamics in undoped and p -doped InAsGaAs QDs is carried out by pump-probe reflection measurements. The carrier capture time from the GaAs barrier into the InAs wetting layer and that from the InAs wetting layer into the InAs QDs are extracted by appropriately fitting differential reflection spectra. Moreover, the dependence of the carrier dynamics on the injected carrier density is identified. A detailed analysis of the carrier dynamics in the undoped and p -doped QDs based on the differential reflection spectra is presented, and its difference with that derived from the time-resolved photoluminescence is discussed. © 2008 American Institute of Physics.
Number of references:41
Main heading:Semiconductor quantum dots
Controlled terms:Carrier concentration - Computer simulation - Doping (additives) - Photoluminescence - Reflection - Semiconducting indium gallium arsenide - Ultrafast phenomena
Uncontrolled terms:Differential reflection spectra - Pump-probe reflection - Ultrafast carrier dynamics
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 723.5 Computer Applications - 741.1.1 Nonlinear Optics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1063/1.2913316
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711717090
Title:Nanostructured thermoelectric skutterudite Co1-xNi xSb3 alloys
Authors:He, Qinyu (1); Hao, Qing (3); Wang, Xiaowei (2); Yang, Jian (2); Lan, Yucheng (2); Yan, Xiao (2); Yu, Bo (2); Ma, Yi (2); Poudel, Bed (2); Joshi, Giri (2); Wang, Dezhi (2); Chen, Gang (3); Ren, Zhifeng (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631, China; (2) Department of Physics, Boston College, Chestnut Hill, MA 02467, United States; (3) Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Corresponding author:Chen, G.
Source title:Journal of Nanoscience and Nanotechnology
Abbreviated source title:J. Nanosci. Nanotechnol.
Volume:8
Issue:8
Issue date:August 2008
Publication year:2008
Pages:4003-4006
Language:English
ISSN:15334880
Document type:Journal article (JA)
Publisher:American Scientific Publishers, 25650 North Lewis Way, Stevenson Ranch, CA 9138-1439, United States
Abstract:Nanostructured Ni-doped skutterudites Co1-xNixSb 3 (with x ranging from 0.01 to 0.09) were prepared by ball milling and direct-current induced hot press. It was found that the thermal conductivity was reduced due to strong electron-phonon scattering from Ni-doping as well as phonon scattering from the increased grain boundary of the nanostructures. A maximum dimensionless figure-of-merit of 0.7 was obtained in Co 0.91Ni0.09Sb3 at 525°C. Copyright © 2008 American Scientific Publishers All rights reserved.
Number of references:16
Main heading:Ball milling
Controlled terms:Cerium alloys - Crystal growth - Grain boundaries - Grinding (machining) - Metallic compounds - Milling (machining) - Milling machines - Nanostructures - Nickel - Nickel alloys - Phonon scattering - Phonons - Presses (machine tools) - Thermal conductivity - Thermal insulating materials - Thermoanalysis - Thermodynamic properties - Thermoelectricity
Uncontrolled terms:Hot press - Hot presses - Low thermal conductivity - Maximum dimensionless figures - Nanostructured - Nanostructured Ni - Skutterudite - Skutterudites
Classification code:714.2 Semiconductor Devices and Integrated Circuits - 751.1 Acoustic Waves - 761 Nanotechnology - 801 Chemistry - 802.3 Chemical Operations - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics - 933 Solid State Physics - 933.1 Crystalline Solids - 933.1.2 Crystal Growth - 712.1 Semiconducting Materials - 413.2 Heat Insulating Materials - 531.2 Metallography - 533.1 Ore Treatment - 547.2 Rare Earth Metals - 548.1 Nickel - 548.2 Nickel Alloys - 603.1 Machine Tools, General - 604.2 Machining Operations - 606.2 Abrasive Devices and Processes - 615.4 Thermoelectric Energy - 641.1 Thermodynamics - 641.2 Heat Transfer - 701.1 Electricity: Basic Concepts and Phenomena
DOI:10.1166/jnn.2008.469
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711727834
Title:Digital change detection by post-classification comparison of RS data in land use of Guangzhou
Authors:Fan, Fenglei (1)
Author affiliation:(1) School of Geography, South China Normal University, Guangzhou 510631, China
Corresponding author:Fan, F.
(fanfenglei@gig.)
Source title:Journal of Information and Computational Science
Abbreviated source title:J. Inf. Comput. Sci.
Volume:5
Issue:3
Issue date:May 2008
Publication year:2008
Pages:1061-1067
Language:English
ISSN:15487741
Document type:Journal article (JA)
Publisher:Sun Yat-sen (Zhongshan) University, 135 Xingangxilu, Guangzhou, 510275, China
Abstract:Remote sensing has long time been an important component of regional planning for applications ranging form urban fringe change detection to monitoring change detection of land use. On the other hand, the technologies and methods of change detection also have evolved dramatically during past 20 years. So it has been well recognized that the change detection had become the best methods for researching dynamic change of land use by multi-temporal remotely-sensed data. The purpose of this paper is to detect land use change surrounding the area of Guangzhou using TM image (Dec 22, 1998) and ETM+ image (Jan. 10, 2003). A county administrative boundary vector layer of the Pearl River Delta (2000) was used to get the subset image of Guangzhou. Unsupervised classification is performed by the K-Means method. At last, two-time subset images of Guangzhou are compared on a pixel-by-pixel basis using the post-classification comparison method and the from-to change matrix is produced, the land use change information obtained.
Number of references:15
Main heading:Land use
Controlled terms:Pixels - Planning - Regional planning - Remote sensing - Signal detection - Space optics
Uncontrolled terms:Boundary vectors - Change detection - Change detections - Comparison methods - Dynamic changes - Etm+ images - Guangzhou - K-Means - Land use/land cover - Long times - Monitoring changes - Multi temporals - Pearl river deltas - Post-classification - RS datums - Tm images - Unsupervised classifications
Classification code:912.2 Management - 742.2 Photographic Equipment - 741.1 Light/Optics - 731.1 Control Systems - 723.5 Computer Applications - 722.2 Computer Peripheral Equipment - 716.1 Information Theory and Signal Processing - 656.1 Space Flight - 442.2 Land Reclamation - 403.2 Regional Planning and Development - 403 Urban and Regional Planning and Development
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258866
Title:Phase-type focusing grating based on Micro-optics technique
Authors:Hu, Changbao (1); He, Zhenjiang (1); Xu, Yiping (1); He, Huosheng (1); Hu, Renyi (1); Tang, Zijing (1)
Author affiliation:(1) School of Physics and Telecom Engineering, South China Normal University, GuangZhou, 510006, China
Corresponding author:Hu, C.
(huchangbao2005@)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:682720
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Considering current Micro-optics technology and using Fresnel diffraction principle and scalar diffraction theory, we design a phase-type focusing grating. It has the function of dispersion and focusing spectrum line. It is the result of integrating phase Fresnel zone plate and the scalar phase grating on the two parallel surface of a piece of fused silica substrate. This design can be used to predigest the light path of the monochromator, making it miniaturization and even micromation. The grating has higher diffraction efficiency. It can also overcome the low diffraction efficiency of conventional grating for the existing of multilevel diffraction. Choosing parameter is the key of designing phase-type focusing grating. Some key parameters are selected on the base of intensively analyzing diffraction optics theory, then the correlation parameters are worked out, and three pieces of binary optic mask zone radii are computed by using MATLAB.
Number of references:11
Main heading:Diffraction gratings
Controlled terms:Focusing - Fused silica - Microoptics - Monochromators - Optical correlation
Uncontrolled terms:Fresnel zone plate - Phase focusing grating - Scalar phase grating
Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 812.3 Glass
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.757780
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258832
Title:An infrared single photon detector based on Avalanche Photodiodes with Transmission lines
Authors:Wang, Jin-Dong (1); Zhang, Bing (1); Wei, Zheng-Jun (1); Liao, Chang-Jun (1); Liu, Song-Hao (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510631, China
Corresponding author:Wang, J.-D.
(jindongw@)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:68270R
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:A new method to detect infrared single photon using avalanche photodiodes is proposed, which combine the requirements of a single photon detector control circuit and features of the electric pulses generator by transient process of transmission lines. When the terminated boundary conditions of transmission lines are changed quickly, voltage across the switch devices will drop suddenly in the electric pulses generator model and at the same time a signal that can reflect the drive information of the switch device will export from load resistance. So we can replace the switch with avalanche photodiodes who can act as an excellent optoelectronic switch. Then when faint laser pulses enter the avalanche photodiode, resistance of the avalanche photodiode will decrease quickly and with that voltage across avalanche photodiodes will drop simultaneously and a signal that can reflect the single-photon laser pulses will export from the load resistance. The simulation results are given for the new quenching circuit model of avalanche photodiodes and the analyses emphasis on the feasibility of the quenching model and the influence of each electrical component on the performance of the quenching circuit. Finally optimal parameter of the electrical components in the model is demonstrated.
Number of references:16
Main heading:Avalanche photodiodes
Controlled terms:Boundary conditions - Electric lines - Laser pulses - Optoelectronic devices - Quantum cryptography - Switching circuits
Uncontrolled terms:Electric pulses generators - Quench circuit - Single photon detection - Transient process
Classification code:921 Mathematics - 744.1 Lasers, General - 741.3 Optical Devices and Systems - 716 Telecommunication; Radar, Radio and Television - 714.1 Electron Tubes - 713.4 Pulse Circuits - 706.2 Electric Power Lines and Equipment
Treatment:Theoretical (THR)
DOI:10.1117/12.756983
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411179547
Title:Threshold segmentation using cultural algorithms for image analysis
Authors:Pan, Zhongliang (1); Chen, Ling (1); Zhang, Guangzhao (2)
Author affiliation:(1) School of Physics and Telecommunications Engineering, South China Normal University, Guangzhou 510006, Guangdong, China; (2) Department of Electronics and Communications, Sun Yat-sen University, Guangzhou 510275, China
Corresponding author:Pan, Z.
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6625
Monograph title:International Symposium on Photoelectronic Detection and Imaging 2007: Related Technologies and Applications
Issue date:2008
Publication year:2008
Article number:662512
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819467676
Document type:Conference article (CA)
Conference name:International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Related Technologies and Applications
Conference date:September 09,2007 - September 12,2007
Conference location:Beijing, China
Conference code:71652
Sponsor:China Ordnance Society; Beijing Institute of Technology
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:The image segmentation is often an important step in the analysis of images. In this paper, an image segmentation method based on cultural algorithms is presented. The method performs the image segmentation by selecting the optimal threshold values. The multi-threshold values are used. First of all, an entropy function corresponding to an image is defined. The optimal threshold values are obtained by making the entropy function reach the maximal value. Secondly, an algorithm based on the principle of cultural algorithms is presented for the computation of the optimal thresholds. The algorithm consists of three major components: a population space, a belief space, and a communication protocol that describes how knowledge is exchanged between the first two components. The designs and implementations of the three components are given in detail. The experimental results show that the segmentation method proposed in this paper can obtain the near optimal threshold for image segmentation.
Number of references:12
Main heading:Image segmentation
Controlled terms:Computation theory - Evolutionary algorithms - Image analysis - Optimal systems - Population dynamics
Uncontrolled terms:Cultural algorithms - Optimal threshold - Threshold segmentation
Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.2 Data Processing and Image Processing - 741 Light, Optics and Optical Devices - 961 Systems Science - 971 Social Sciences
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.791025
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084811738876
Title:Dynamics of optical matter creation and annihilation in colloidal liquids controlled by laser trapping power
Authors:Liu, Jin (1); Dai, Qiao-Feng (1); Huang, Xu-Guang (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Yang, Xiang-Bo (1); Lan, Sheng (1); Gopal, Achanta Venu (2); Trofimov, Vyacheslav A. (3)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong 510006, China; (2) Department of Condensed Matter Physics and Material Science, Tata Institute of Fundamental Research, Homi Bhabha Boad, Mumbai 400005, India; (3) Department of Computational Mathematics and Cybernetics, M. V. Lomonosov Moscow State University, Moscow 119992, Russia
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:33
Issue:22
Issue date:November 15, 2008
Publication year:2008
Pages:26172619
Language:English
ISSN:01469592
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:We investigate the dynamics of optical matter creation and annihilation in a colloidal liquid that was employed to construct an all-optical switch. It is revealed that the switching-on process can be characterized by the Fermi-Dirac distribution function, while the switching-off process can be described by a steady state followed by a single exponential decay. The phase transition times exhibit a strong dependence on trapping power. With an increasing trapping power, while the switching-on time decreases rapidly, the switch-off time increases significantly, indicating the effects of optical binding and van der Waals force on the lifetime of the optical matter. © 2008 Optical Society of America.
Number of references:15
Main heading:Phase transitions
Controlled terms:Distribution functions - Dynamics - Superconducting materials - Van der Waals forces
Uncontrolled terms:Colloidal liquids - Creation and annihilations - Exponential decays - Laser trapping - Life-times - Off times - On times - Optical bindings - Optical- - Steady states
Classification code:931.3 Atomic and Molecular Physics - 931.1 Mechanics - 922.1 Probability Theory - 801.4 Physical Chemistry - 708.3 Superconducting Materials - 641.1 Thermodynamics - 531.2 Metallography
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082611337599
Title:Plane-wave pseudo-potential method of Li inserted as anode material in Sn-Ni alloy
Authors:Hou, Xianhua (1); Hu, Shejun (1); Li, Weishan (1); Zhao, Lingzhi (1); Yu, Hongwen (1)
Author affiliation:(1) South China Normal University, Guangzhou 510006, China; (2) Wuyi University, Jiangmen 529020, China
Corresponding author:Hou, X.
Source title:Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title:Xiyou Jinshu Cailiao Yu Gongcheng
Volume:37
Issue:5
Issue date:May 2008
Publication year:2008
Pages:827-830
Language:Chinese
ISSN:1002185X
CODEN:XJCGEA
Document type:Journal article (JA)
Publisher:Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014, China
Abstract:Based on the density functional theory of first-principle, this paper calculates the electronic structures of Ni2Sn and LiNi2Sn alloys with plane wave pseudo-potential method. The results show that the dispersed nickel atoms act as a buffer to suppress or accommodate the large volume expansion after lithium ion is inserted in Ni2Sn anode material with a volume expansion ratio of 8.418%. Meanwhile, the covalent bond between partial nickel atoms and tin atoms will steady the framework of matrix, which suppresses the volume effect and improves the cycle properties. And this result is consistent with the result of experiments.
Number of references:12
Main heading:Tin alloys
Controlled terms:Anodes - Covalent bonds - Density functional theory - Electronic structure - Nickel alloys - Secondary batteries
Uncontrolled terms:Anode material - First principle - Lithium ion battery - Nickel tin alloy - Plane wave pseudo potential method
Classification code:546.2 Tin and Alloys - 548.2 Nickel Alloys - 702.1.2 Secondary Batteries - 801.4 Physical Chemistry - 922.1 Probability Theory - 931.3 Atomic and Molecular Physics
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111267425
Title:Relation between network structure and knowledge flow: A perspective of complex networks theory
Authors:Li, Jin-Hua (1)
Author affiliation:(1) School of Economics and Management, South China Normal University, 510006, China
Corresponding author:Li, J.-H.
Source title:Proceedings of 2007 International Conference on Management Science and Engineering, ICMSE'07 (14th)
Abbreviated source title:Proc. Int. Conf. Manage. Sci. Eng. ICMSE
Monograph title:Proceedings of 2007 International Conference on Management Science and Engineering, ICMSE'07 (14th)
Issue date:2008
Publication year:2008
Pages:1572-1577
Article number:4422067
Language:English
ISBN-13:9787883580805
Document type:Conference article (CA)
Conference name:2007 International Conference on Management Science and Engineering, ICMSE'07
Conference date:August 20,2007 - August 22,2007
Conference location:Harbin, China
Conference code:72050
Sponsor:National Natural Science Foundation of China; Harbin Institute of Technology, P.R. China
Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:According to the characteristics of knowledge propagation in the collaborative networks of knowledge, a knowledge propagation model is proposed based on the complex network theory. In the proposed model, the Cobb-Dauglas production function is introduced to describe the increase of knowledge caused by knowledge flow, a kind of knowledge collaborative production. The knowledge now in the networks for WS model and BA model is then considered respectively under the condition of equivalent networks, with the results indicating that, the performance of knowledge now in the networks for WS model increases with the stochastic degree of the networks, and the performance of knowledge flow in the networks for BA model is better than in the equivalent networks for WS model and in the equivalent random networks.
Number of references:20
Main heading:Knowledge management
Controlled terms:Computer supported cooperative work - Data flow analysis - Function evaluation - Mathematical models - Production control
Uncontrolled terms:Complex networks theory - Knowledge collaborative production - Network structures
Classification code:723.1 Computer Programming - 723.5 Computer Applications - 903.3 Information Retrieval and Use - 913.2 Production Control - 921.6 Numerical Methods
Treatment:Theoretical (THR)
DOI:10.1109/ICMSE.2007.4422067
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085111792295
Title:Authors' response to comments on kinetics studies on oxirane cleavage of epoxidized soybean oil by methanol and characterization of polyols
Authors:Lin, Bo (1); Yang, Liting (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Yang, L.
(liting632003@.cn)
Source title:JAOCS, Journal of the American Oil Chemists' Society
Abbreviated source title:JAOCS J Am Oil Chem Soc
Volume:85
Issue:12
Issue date:December 2008
Publication year:2008
Pages:1187-1188
Language:English
ISSN:0003021X
CODEN:JJASDH
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:The authors of the paper on Kinetics Studies on Oxirane Cleavage of Epoxidized Soybean Oil by Methanol and Characterization of Polyols clarify their findings after receiving comments from readers of the Journal of American Oil Chemists' Society. The authors state that they rechecked their findings in an effort to respond to the comments. The authors state that they checked the basic properties of the ESO used in the original paper and found to have an acid value of 1.02 mg KOH/g, hydroxyl number of 8.56 mg KOH/g, and an iodine value (IV) of 1.62. The IR spectra of neutralized and washed ESO showed that the smaller peak at 3,500 cm-1 of the untreated ESO was removed. Reinvestigations also revealed that hydrogen peroxide 30% and sulfuric acid 98% were listed in the materials section but without being mentioned in the paper.
Abstract type:(Edited Abstract)
Main heading:Sulfuric acid
Controlled terms:Acids - Hydrogen - Hydrogen peroxide - Iodine - Magnesium printing plates - Methanol - Paper
Uncontrolled terms:Acid values - Basic properties - Epoxidized soybean oils - Hydroxyl numbers - Iodine values - IR spectrum - Kinetics studies - Oxirane - Polyols
Classification code:804.2 Inorganic Compounds - 804.1 Organic Compounds - 804 Chemical Products Generally - 811.1 Pulp and Paper - 803 Chemical Agents and Basic Industrial Chemicals - 549.2 Alkaline Earth Metals - 542.2 Magnesium and Alloys - 745.1.1 Printing Equipment
DOI:10.1007/s11746-008-1309-8
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511483281
Title:Voltammetric determination of 6-mercaptopurine using [Co(phen)3]3+/MWNT modified graphite electrode
Authors:Lu, Bao-Yi (0); Li, Hong (0); Deng, Hong (0); Xu, Zhenghe (0); Li, Wei-Shan (0); Chen, Hong-Yu (0)
Corresponding author:Li, H.
(lihong@scnu.)
Corr. author affiliation:School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Source title:Journal of Electroanalytical Chemistry
Abbreviated source title:J Electroanal Chem
Volume:621
Issue:1
Issue date:Sep 1 2008
Publication year:2008
Pages:97-102
Language:English
ISSN:00220728
CODEN:JECHES
Document type:Journal article (JA)
Publisher:Elsevier, Amsterdam, 1000 AE, Netherlands
Abstract:[Co(phen)3]3+/multi-walled carbon nanotubes modified graphite electrode ([Co(phen)3]3+/MWNT/C) has been developed to monitor quantitatively 6-mercaptopurine (6-MP) concentration and to study the effect of rabbit blood as disturbance agents on the determination. Multi-walled carbon nanotubes (MWNT) are used for efficient immobilization of [Co(phen)3]3+. The prepared [Co(phen)3]3+/MWNT/C electrode exhibits an excellent redox activity. 6-MP is detected by monitoring the reductive current values of free [Co(phen)3]3+ or the [Co(phen)3]3+-6-MP complex generated by the interaction of [Co(phen)3]3+ on the MWNT modified graphite electrode with 6-MP. These electrochemical signals are found to be sensitive enough to monitor 6-MP concentration changes, and the [Co(phen)3]3+/MWNT/C electrode has also been applied to the evaluation of 6-MP in the presence of rabbit blood. © 2008 Elsevier B.V. All rights reserved.
Number of references:44
DOI:10.1016/j.jelechem.2008.04.018
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011392575
Title:Ince-Gaussian beams in strongly nonlocal nonlinear media
Authors:Deng, Dongmei (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Journal of Physics B: Atomic, Molecular and Optical Physics
Abbreviated source title:J Phys B At Mol Opt Phys
Volume:41
Issue:14
Issue date:July 28, 2008
Publication year:2008
Article number:145401
Language:English
ISSN:09534075
E-ISSN:13616455
CODEN:JPAPEH
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:Based on the Snyder-Mitchell model that describes the beam propagation in strongly nonlocal nonlinear media, the close forms of Ince-Gaussian (IG) beams have been found. The transverse structures of the IG beams are described by the product of the Ince polynomials and the Gaussian function. Depending on the input power of the beams, the IG beams can be either a soliton state or a breather state. The IG beams constitute the exact and continuous transition modes between Hermite-Gaussian beams and Laguerre-Gaussian beams. The IG vortex beams can be constructed by a linear combination of the even and odd IG beams. The transverse intensity pattern of IG vortex beams consists of elliptic rings, whose number and ellipticity can be controlled, and a phase displaying a number of in-line vortices, each with a unitary topological charge. The analytical solutions of the IG beams are confirmed by the numerical simulations of the nonlocal nonlinear Schrdinger equation. © 2008 IOP Publishing Ltd.
Number of references:50
Main heading:Magnetism
Controlled terms:Computer simulation - Electromagnetic field theory - Electromagnetic fields - Electromagnetism - Functions - Gaussian beams - Gaussian noise (electronic) - Nonlinear equations - Trellis codes - Vortex flow
Uncontrolled terms:Analytical solutions - Beam propagation - Continuous transitions - Gaussian - Gaussian functions - Hermite-Gaussian (HG) beams - IG beams - In line - Ince-Gaussian beams - Input powers - Laguerre-Gaussian (LG) beams - Linear combination (LC) - Non local - Nonlocal nonlinear media - Numerical simulations - Schrdinger equations - Soliton state - Topological charges - Vortex beams
Classification code:921.1 Algebra - 921 Mathematics - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 711 Electromagnetic Waves - 701.2 Magnetism: Basic Concepts and Phenomena - 701.1 Electricity: Basic Concepts and Phenomena - 701 Electricity and Magnetism - 631.1 Fluid Flow, General
DOI:10.1088/0953-4075/41/14/145401
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082711348221
Title:Nonlocal effects on second-harmonic generation in a Pöschl-Teller quantum well
Authors:Wang, G. (1); Guo, Q. (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:European Physical Journal B
Abbreviated source title:Eur. Phys. J. B
Volume:63
Issue:2
Issue date:May 2008
Publication year:2008
Pages:219-225
Language:English
ISSN:14346028
E-ISSN:14346036
Document type:Journal article (JA)
Publisher:Springer New York LLC, 233 Springer Street, New York, 10013-1578, United States
Abstract:Nonlocal effects on the energy conversion efficiency of the second-harmonic generation (SHG) for a p-polarized incident field in a Po¨schl-Teller quantum well (PTQW) are investigated in detail. The numerical results show that the spatial distribution of the second-harmonic field is nonuniform, and that there exist two resonance peaks in the second-harmonic energy reflection spectra, and their positions have a notable blueshift because of the nonlocal effects. A very important property is that a maximum blueshift at the second-harmonic resonance can be obtained by adopting a proper quantum-well width and donor concentration, which may be interesting in future precision experiments.
Number of references:15
Main heading:Semiconductor quantum wells
Controlled terms:Conversion efficiency - Energy conversion - Energy efficiency - Harmonic analysis - Harmonic generation - Photoacoustic effect - Power generation - Resonance - Semiconductor quantum wires - Size distribution
Uncontrolled terms:blue shifting - donor concentrations - energy conversion efficiency - Harmonic energy - harmonic fields - Harmonic resonance - Incident fields - Non local effects - Non uniform - numerica l results - P-polarized - Property (S) - Quantum wells - resonance peaks - Second harmonic generation (SHG) - Spatial distribution of
Classification code:931.1 Mechanics - 922.2 Mathematical Statistics - 921.6 Numerical Methods - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 713.2 Oscillators - 706 Electric Transmission and Distribution - 525.5 Energy Conversion Issues - 525.2 Energy Conservation
DOI:10.1140/epjb/e2008-00242-6
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516242
Title:Improvement in electrochemical capacitance of carbon materials by nitric acid treatment
Authors:Chen, X.L. (1); Li, W.S. (1); Tan, C.L. (1); Li, W. (1); Wu, Y.Z. (1)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou, 510006, China; (2) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China
Corresponding author:Li, W.S.
(liwsh@scnu.)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:184
Issue:2
Issue date:October 1, 2008
Publication year:2008
Pages:668-674
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Four commercial carbon materials, carbon nanotube, active carbon, acetylene black, and graphite, were treated by concentrated nitric acid. The surface properties and the electrochemical capacitance of the treated and the untreated carbon samples were studied by using scanning electron spectroscopy, BET surface analysis, constant current charge/discharge test, cyclic voltammetry, and alternative current impedance. It is found that the untreated samples have different specific capacitance and specific surface area, which are in the order from large to small: carbon nanotube, active carbon, acetylene black, and graphite. After treated with nitric acid, the specific surface area of these commercial carbon materials increases to different extents, and the specific capacitance of carbon nanotube, acetylene black and graphite increases proportionally to their specific surface area but the specific capacitance of active carbon decreases. The effect of acid treatment on the capacitance of the commercial carbon samples is related to their porosity structure and surface functional groups. © 2008 Elsevier B.V. All rights reserved.
Number of references:18
Main heading:Surface analysis
Controlled terms:Acetylene - Bioelectric phenomena - Capacitance - Carbon - Carbon black - Carbon nanotubes - Cyclic voltammetry - Electrochemical impedance spectroscopy - Electrochemical properties - Functional groups - Graphite - Lighting - Nanocomposites - Nanopores - Nanostructured materials - Nanostructures - Nanotechnology - Nanotubes - Nitric acid - Optical sensors - Specific surface area - Surface properties - Surface structure - Surface treatment - Surfaces - Voltammetry
Uncontrolled terms:Acetylene black - Acid treatments - Active carbons - Alternative current - BET surface - Carbon materials - Charge/discharge testing - Constant Current - Electrochemical capacitance - Nitric acid treatment - Porosity structure - Scanning electron spectroscopy - Specific capacitance - Specific surface areas - Surface functional groups
Classification code:801 Chemistry - 801.4.1 Electrochemistry - 803 Chemical Agents and Basic Industrial Chemicals - 951 Materials Science - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 804.1 Organic Compounds - 761 Nanotechnology - 741.3 Optical Devices and Systems - 423 Non Mechanical Properties and Tests of Building Materials - 461.1 Biomedical Engineering - 482.2 Minerals - 539 Metals Corrosion and Protection; Metal Plating - 701.1 Electricity: Basic Concepts and Phenomena - 707 Illuminating Engineering
DOI:10.1016/j.jpowsour.2008.05.073
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081111147301
Title:Effects of low intensity laser irradiation on proliferation and collagen synthesis of chondrocytes in vitro
Authors:Liang, Jun (1); Yang, Xiao-Hong (3); Liu, Cheng-Yi (1)
Author affiliation:(1) Laboratory of Laser Sports Medicine, South China Normal University, Guangzhou 510631, China; (2) Social Physical Education Department, Sanya Aviation and Tourism College, Sanya 572000, China; (3) The 4th Affiliated Hospital, Medical College, Jinan University, Guangzhou 510220, China
Corresponding author:Liang, J.
Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser
Abbreviated source title:Guangdianzi Jiguang
Volume:19
Issue:1
Issue date:January 2008
Publication year:2008
Pages:139-142
Language:Chinese
ISSN:10050086
CODEN:GUJIE9
Document type:Journal article (JA)
Publisher:Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China
Abstract:To investigate the potential effects of continuous wave 810 nm low intensity Ga-Al-As laser irradiation (LIGL) on proliferation and collagen synthesis of rabbit articular cartilage cells in vitro. Articular cartilage cells of New Zealand white rabbits were suspended in medium with concentration 2% of newborn calf serum. The chondrocytes were treated by LIGL at 1.75, 3.50, 5.25, 7.00 and 8.75 mW/cm2 for 5 minutes per day, respectively, for 5 days, and then incubated till the 8th day. The proliferation and collagen synthesis were assessed by a 3-(4, 5-dimenthylthiazol-2-yl)-2, 5-dipheny] tetrazolium bromide (MTT) test and hydroxyproline (Hpr) content measurement, respectively. The MTT tests showed that LIGL irradiation significantly promoted chondrocyte proliferation (P < 0.01), whose optimal intensity was 7.00 mW/cm2. The Hpr content tests showed that LIGL irradiation significantly inhibited collagen synthesis (P < 0.01) at the end of the study. The group of 8.75 mW/cm2 was significantly different from groups of 3.50, 5.25 and 7.00 mW/cm2 (P < 0.05). Collagen content of the group of 7.00 mW/cm2 was significantly higher than that without LIGL irradiation at the day of 6th (P < 0.01), but significantly lower than that without LIGL irradiation at the day of 8th (P < 0.01). The results show that low intensity GA-Al-As diode 810 nm laser irradiation might promote the proliferation of articular chondrocytes, which might be used to achieve the repair of articular cartilage in clinic.
Number of references:24
Main heading:Laser beam effects
Controlled terms:Cartilage - Collagen - Synthesis (chemical)
Uncontrolled terms:Chondrocytes - Collagen synthesis - Laser irradiation - Low intensity laser - Proliferation
Classification code:461.2 Biological Materials and Tissue Engineering - 744.8 Laser Beam Interactions
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083411477583
Title:Brownian pump in nonlinear diffusive media
Authors:Ai, Bao-Quan (1); Liu, Liang-Gang (2)
Author affiliation:(1) Institute for Condensed Matter Physics, School of Physics and Telecommunication Engineering, South China Normal University, 510006 Guangzhou, China; (2) Faculty of Information Technology, Macau University of Science and Technology, China
Corresponding author:Ai, B.-Q.
(aibq@)
Source title:Journal of Physical Chemistry B
Abbreviated source title:J Phys Chem B
Volume:112
Issue:31
Issue date:August 7, 2008
Publication year:2008
Pages:9540-9545
Language:English
ISSN:15206106
CODEN:JPCBFK
Document type:Journal article (JA)
Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States
Abstract:A Brownian pump in nonlinear diffusive media is investigated in the presence of an unbiased external force. The pumping system is embedded in a finite region and bounded by two particle reservoirs. In the adiabatic limit, we obtain the analytical expressions of the current and the pumping capacity as a function of temperature for normal diffusion, subdiffusion, and superdiffusion. It is found that important anomalies are detected in comparison with the normal diffusion case. The superdiffusive regime, compared with the normal one, exhibits an opposite current for low temperatures. In the subdiffusive regime, the current may become forbidden for low temperatures and negative for high temperatures. © 2008 American Chemical Society.
Number of references:18
Main heading:Pumps
Controlled terms:Financial data processing - Semiconductor doping
Uncontrolled terms:Adiabatic limit - Analytical expressions - Diffusive media - External forcing - High temperatures - Low temperatures - Particle reservoirs - Pumping capacity - Subdiffusion - Superdiffusion
Classification code:618.2 Pumps - 712.1 Semiconducting Materials - 911.1 Cost Accounting
DOI:10.1021/jp8017259
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811231843
Title:Study of electrodeposited Sn/Ni alloy as anode materials for Li-ion batteries
Authors:Tan, Chunlin (1); Lu, Dongsheng (1); Li, Weishan (1); Xu, Mengqing (1); Zhou, Daiying (1); Hu, Shejun (1)
Author affiliation:(1) South China Normal University, Guangzhou 510006, China
Corresponding author:Tan, C.
Source title:Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title:Xiyou Jinshu Cailiao Yu Gongcheng
Volume:37
Issue:3
Issue date:March 2008
Publication year:2008
Pages:472-475
Language:Chinese
ISSN:1002185X
CODEN:XJCGEA
Document type:Journal article (JA)
Publisher:Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014, China
Abstract:A series of Ni-Sn alloys containing 0%, 45.2%, 62.7%, 78.5%, and 86.1at%, respectively, were prepared by electrodeposition, and the performances of the alloys as the anode for lithium ion battery were investigated using XRD, Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES), cyclic voltammetry (CV), and constant current charging and discharging (CC) techniques. It is found that the initial capacities of the alloys increases, but the cyclic stabilities of the alloys decay with increasing of the tin content in the alloys. The alloy with tin content of 62.7 at% has a good comprehensive performance, its initial capacity reaches 554 mAh·g-1 with the coulomb efficiency of 82%, Its discharge capacity maintains at 275 mAh·g-1 with a coulomb efficiency of 93% after 30 cycles.
Number of references:14
Main heading:Tin alloys
Controlled terms:Anodes - Atomic emission spectroscopy - Cyclic voltammetry - Electrodeposition - Inductively coupled plasma - Nickel alloys - Secondary batteries - X ray diffraction analysis
Uncontrolled terms:Lithium ion battery - Nickel tin alloy - Tin content
Classification code:546.2 Tin and Alloys - 548.2 Nickel Alloys - 702.1.2 Secondary Batteries - 801 Chemistry - 813.1 Coating Techniques - 931.3 Atomic and Molecular Physics
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084811745467
Title:Surface plasmon polaritons based optical directional coupler
Authors:Zhao, Huawei (1); Huang, Xuguang (1); Huang, Jingtang (1)
Author affiliation:(1) School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Huang, X.
(huangxg0@)
Source title:Science in China, Series G: Physics, Mechanics and Astronomy
Abbreviated source title:Sci. China Ser. G Phys. Mech. Astron.
Volume:51
Issue:12
Issue date:December 2008
Publication year:2008
Pages:1877-1882
Language:English
ISSN:16721799
E-ISSN:18622844
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:As a basic optical device, the optical directional coupler (ODC) is basically used as optical splitters, optic switches and so on. A novel ODC employing surface plasmon polaritons (SPPs) is proposed for high integration. The finite difference time domain (FDTD) method is adopted to simulate and analyze its properties. Results show that the ODC proposed here follows the general regulations of a conventional dielectric ODC, but its transverse size is of nanoscale, which improves the optical integration greatly. For 1550 nm and 1310 nm input wavelengths, when the coupling region length (L) equals half of its coupling length, the Excess Loss is respectively 0.57 dB and 0.56 dB, which is practical in applications. So the research on the present ODC is of some practical importance. © 2008 Science in China Press and Springer-Verlag GmbH.
Number of references:15
Main heading:Time domain analysis
Controlled terms:Directional couplers - Finite difference time domain method - Integrated optics - Optical instruments - Optical switches - Optical waveguides - Particle optics - Phonons - Photons - Plasmons - Quantum theory - Solids - Surface analysis - Surface plasmon resonance - Waveguide couplers
Uncontrolled terms:1550 nm - Applications. - Coupling lengths - Coupling regions - Excess losses - Finite difference time domain (FDTD) - Finite difference time domains - Input wavelengths - Nanoscale - Optic switches - Optical directional couple (ODC) - Optical directional couplers - Optical integrations - Optical splitters - Practical importances - Surface plasmon polariton (SPP) - Surface plasmon polaritons - Transverse sizes
Classification code:751.1 Acoustic Waves - 921 Mathematics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 951 Materials Science - 931.4 Quantum Theory; Quantum Mechanics - 932.3 Plasma Physics - 933 Solid State Physics - 941.3 Optical Instruments - 932.1 High Energy Physics - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 423 Non Mechanical Properties and Tests of Building Materials - 701.1 Electricity: Basic Concepts and Phenomena - 703.1.1 Electric Network Analysis - 711 Electromagnetic Waves - 712.1 Semiconducting Materials - 714.3 Waveguides - 717.2 Optical Communication Equipment - 731.1 Control Systems
DOI:10.1007/s11433-008-0187-2
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711541126
Title:Growth and properties of ZnO thin films grown on (220) CaF2 by MOCVD
Authors:Wang, Yin-Zhen (1); Xu, Jun (2); Chu, Ben-Li (1); He, Qin-Yu (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631, China; (2) Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
Corresponding author:Wang, Y.-Z.
(agwyz@.cn)
Source title:Rengong Jingti Xuebao/Journal of Synthetic Crystals
Abbreviated source title:Rengong Jingti Xuebao
Volume:37
Issue:4
Issue date:August 2008
Publication year:2008
Pages:849-852
Language:Chinese
ISSN:1000985X
CODEN:RJXUEN
Document type:Journal article (JA)
Publisher:Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China
Abstract:ZnO films were grown on (220) CaF2 substrates by MOCVD. The structural and optical properties of ZnO thin films on CaF2 substrates were investigated. XRD results show that the ZnO films grown on CaF2 substrates had highly c-axis preferential orientation and good quality. The transmittance of the ZnO thin films in the visible range was over 85%. PL spectra of the ZnO thin films showed strong UV near-band-edge emission peak at 378.5 nm using He-Cd laser as light source, and using synchrotron radiation light source. PL spectra show four emission peak at 218 nm, 368 nm, 418 nm and 554 nm respectively.
Number of references:16
Main heading:Zinc oxide
Controlled terms:Semiconducting zinc compounds - Thick films - Zinc alloys
Uncontrolled terms:CaF2 - MOCVD - ZnO films - ZnO thin films
Classification code:546.3 Zinc and Alloys - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 804.2 Inorganic Compounds
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511493986
Title:Monitoring of the regulatory effects of plant growth regulators using light-induced delayed fluorescence
Authors:Zhang, Ling-Rui (1); Xing, Da (1)
Author affiliation:(1) Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Zhang, L.-R.
Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser
Abbreviated source title:Guangdianzi Jiguang
Volume:19
Issue:7
Issue date:July 2008
Publication year:2008
Pages:996-999
Language:Chinese
ISSN:10050086
CODEN:GUJIE9
Document type:Journal article (JA)
Publisher:Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China
Abstract:With the lamina of broad bean (Vicia faba) as testing models, a portable delayed fluorescence (PF) biosensor is designed to study the effects of eight plant growth regulators (PGRs) with different modes of action on the characteristics of DF. The results demonstrate that the changes in DF intensity of green plant can truly reflect the regulatory effects of PGRs on the growth and photosynthetic metabolism of broad beam seedlings. Therefore, the DF biosensor technology is anticipated to be a simple and non-invasive method for early and real-time monitor the regulatory effects of PGRs on plant growth and development in vivo.
Number of references:12
Main heading:Fluorescence
Controlled terms:Biochemistry - Biosensors - Ecology - Laws and legislation - Light emission - Luminescence - Plant life extension
Uncontrolled terms:Bio sensor - Delayed fluorescence - Different modes - Green plants - In-vivo - Non-invasive methods - Photosynthesis rate - Plant growth - Plant growth regulators - Real-time monitoring - Regulatory effects - Testing models - Vicia faba
Classification code:402.1 Industrial and Agricultural Buildings - 454.3 Ecology and Ecosystems - 741.1 Light/Optics - 801.2 Biochemistry - 971 Social Sciences
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090711905698
Title:Electronic structure and optical properties of Co and Mn codoped ZnO from first-principle study
Authors:Bi, Yan-Jun (1); Guo, Zhi-You (1); Sun, Hui-Qing (1); Lin, Zhu (1); Dong, Yu-Cheng (1)
Author affiliation:(1) Institute of Optoelectronic Material and Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Bi, Y.-J.
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:12
Issue date:December 2008
Publication year:2008
Pages:7800-7805
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The geometrical structures of pure ZnO and Co and Mn codoped 32-atom supercell of ZnO were optimized by using the ultra-soft pseudopotential method of total-energy plane wave based on the density functional theory. Band structure, density of states and optical properties were calculated and discussed in detail. The results revealed that the band gap of Co and Mn codoped ZnO are reduced and the absorption to ultraviolet visible light is obviously enhanced.
Number of references:25
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711537573
Title:A conjecture about lower multiexponent of primitive matrices
Authors:Liu, Bolian (0); Huang, Fengying (0)
Corresponding author:Liu, B.
(liubl@scnu.)
Corr. author affiliation:School of Mathematics, South China Normal University, Guangzhou, 510631, China
Source title:Computers and Mathematics with Applications
Abbreviated source title:Comput Math Appl
Volume:56
Issue:8
Issue date:October 2008
Publication year:2008
Pages:2100-2106
Language:English
ISSN:08981221
CODEN:CMAPDK
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Oxford, OX5 1GB, United Kingdom
Abstract:In this paper the conjecture on kth lower multiexponent of primitive matrices proposed by R.A. Brualdi and Liu are partly proved. © 2008 Elsevier Ltd. All rights reserved.
Number of references:3
DOI:10.1016/j.camwa.2008.03.039
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211645284
Title:Investigation of propagation of spatial soliton in nonlocal nonlinear medium of finite-size
Authors:Liang, Yan-Bin (0); Zheng, Ya-Jian (0); Yang, Ping-Bao (0); Cao, Long-Gui (0); Lu, Da-Quan (0); Hu, Wei (0); Guo, Qi (0)
Corresponding author:Liang, Y.-B.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:9
Issue date:September 2008
Publication year:2008
Pages:5690-5698
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:In this paper, we investigate the effect of the boundary of the nonlocal nonlinear medium on the propagation of soliton. On the basic of NNLSE and the Poisson equation, using the Green function approach, we obtain the response function of the lead glass of finite-size, which is a strong nonlocal medium. Starting with the paraxial ray equation, we obtain the analytical solutions of the oscillation trajectory and period of the beam. Comparing the analytical solutions with numerical simulations, we found that our analytical solutions are precise when the point of incidence is not near the boundary of the medium.
Number of references:28
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081711218780
Title:Efficient synthesis of novel six-member ring-fused quinoline derivatives via the Friedländer reaction
Authors:Yang, Dingqiao (1); Guo, Wei (1); Cai, Yuepeng (1); Jiang, Lasheng (1); Jiang, Kailing (1); Wu, Xiaobing (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Yang, D.
(yangdq@scnu.)
Source title:Heteroatom Chemistry
Abbreviated source title:Heteroatom Chem.
Volume:19
Issue:3
Issue date:2008
Publication year:2008
Pages:229-233
Language:English
ISSN:10427163
E-ISSN:10981071
CODEN:HETCE8
Document type:Journal article (JA)
Publisher:Wiley-Liss Inc., 111 River Street, Hoboken, NJ 07030-5774, United States
Abstract:Novel quinolines fused with a six-member ring 5a-j were prepared in high yields (75-95%) via the Friedla¨nder reaction of dimethoxy-substituted o-aminobenzaldehydes of 3a or 3b with cyclic ketones 4, respectively. The structures of 5aj were determined by IR, 1H NMR, MS, and elemental analysis. © 2008 Wiley Periodicals, Inc.
Number of references:30
Main heading:Derivatives
Controlled terms:Chemical analysis - Ketones - Nuclear magnetic resonance
Uncontrolled terms:Aminobenzaldehydes - Cyclic ketones
Classification code:801 Chemistry - 804 Chemical Products Generally - 804.1 Organic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1002/hc.20356
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080611080539
Title:Reply to "comment on 'Correlated noise in a logistic growth model' "
Authors:Ai, Bao-Quan (1); Wang, Xian-Ju (1); Liu, Liang-Gang (2)
Author affiliation:(1) Institute for Condensed Matter Physics, School of Physics and Telecommunication Engineering, South China Normal University, 510006 Guangzhou, China; (2) Faculty of Information Technology, Macau University of Science and Technology, China
Corresponding author:Ai, B.-Q.
(aibq@)
Source title:Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Abbreviated source title:Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
Volume:77
Issue:1
Issue date:January 22, 2008
Publication year:2008
Article number:013902
Language:English
ISSN:15393755
E-ISSN:15502376
CODEN:PLEEE8
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We respond to the preceding Comment by Behera and O'Rourke, which points out an error in our earlier work, and argues that our results are not correct. We agree with Behera and O'Rourke: a sign error led us to solve the model for the opposite (positive) sign of the correlation parameter from that which we intended. In order to improve this problem, we extend the range of the correlation parameter λ from (0,1) to (-1,1]. © 2008 The American Physical Society.
Number of references:2
Main heading:Acoustic noise
Controlled terms:Correlation methods - Mathematical models - Parameter estimation - Problem solving
Uncontrolled terms:Correlation parameter - Logistic growth model
Classification code:723.4 Artificial Intelligence - 731.1 Control Systems - 751.4 Acoustic Noise - 921 Mathematics - 922.2 Mathematical Statistics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1103/PhysRevE.77.013902
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258630
Title:Noninvasive mapping of subcutaneous vasculature with high resolution photoacoustic imaging
Authors:Lao, Yeqi (1); Xing, Da (1); Yang, Sihua (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Lao, Y.
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68261X
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:As a novel hybrid imaging modality, photoacoustic (PA) imaging combines the merits of high optical contrast, good ultrasonic resolution and sufficient imaging depth, which may be of great benefit to noninvasively detect and monitor the pathological changes of subcutaneous vasculature, e.g., congenital vascular tumor and vascular malformation. In this paper, we apply a set of photoacoustic imaging system to image a sample of subcutaneous blood vessels, which is used to simulate the location of human's subcutaneous vasculature. Furthermore, an image of subcutaneous vasculature of the abdomen in a mouse is acquired in vivo. Laser pulses at a wavelength of 532 nm from a Q-switched Nd:YAG laser are employed as light source to generate PA signals in the experiments, because the optical absorption of whole blood is much stronger than that of other tissues at this wavelength. A needle polyvinylidene fluoride (PVDF) hydrophone with a diameter of 1mm is used to capture PA signals through a circular scan. The experimental results show that detailed structural information of subcutaneous vasculature, such as the shape and position of the blood vessels and the vessel branching, is clearly revealed by the PA imaging system. The spatial resolution of the PA imaging system reaches 80μm. Moreover, the reconstructed image of a mouse's abdomen in vivo demonstrates that this technique is suitable for noninvasive subcutaneous vasculature imaging. All of the results prove that the PA imaging can be used as a helpful tool for monitoring the pathological changes of subcutaneous vasculature.
Number of references:16
Main heading:Medical imaging
Controlled terms:Imaging systems - Pathology - Photoacoustic effect - Tumors
Uncontrolled terms:Photoacoustic imaging - Subcutaneous vasculature
Classification code:461.1 Biomedical Engineering - 461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 741.1 Light/Optics - 746 Imaging Techniques - 751.1 Acoustic Waves
Treatment:Experimental (EXP)
DOI:10.1117/12.760228
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911597523
Title:Exercise boundary of American-style Asian option
Authors:Yi, Fahuai (1); Chen, Yingshan (1)
Author affiliation:(1) Department of Mathematics, South China Normal University, Guangzhou, 510631, China
Corresponding author:Yi, F.
(fhyi@scnu.)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:204
Issue:1
Issue date:October 1, 2008
Publication year:2008
Pages:70-81
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:In this paper, we study the smoothness of the optimal exercise boundary (i.e. free boundary) of American-style arithmetic average Asian option with floating strike price in finite horizon case (i.e. parabolic case). Applying stochastic analysis the authors of [G. Peskir, N. Yus, On Asian options of American type, Exotic Option Pricing and Advanced Levy Models, Wiley, Eindhoven, 2004, pp. 217-235; G. Peskir, A. Shiryaev, Optimal stopping and free boundary problems, Lectures in Mathematics ETH Zurich, Birkhauser, 2006, pp. 416-436] proved that the optimal exercise boundary is a continuous and monotonic curve. Based on their results we prove that the optimal exercise boundary is infinitely differentiable using PDE method. © 2008 Elsevier Inc. All rights reserved.
Number of references:18
Main heading:Stochastic models
Controlled terms:Partial differential equations
Uncontrolled terms:American-style Asian option - Arithmetic averaging - Asian options - Exercise boundary - Exotic option - Finite horizons - Free boundaries - Free boundary - Free-boundary problems - Optimal exercise boundary - Optimal stopping - Option pricing - PDE method - Stochastic analysis - Variational inequality
Classification code:921.2 Calculus - 922.1 Probability Theory
DOI:10.1016/j.amc.2008.06.006
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611702682
Title:Interaction between special optical solitons in sub-strongly non-local nonlinear media
Authors:Cao, Long-Gui (0); Lu, Da-Quan (0); Hu, Wei (0); Yang, Ping-Bao (0); Zhu, Ye-Qing (0); Guo, Qi (0)
Corresponding author:Cao, L.-G.
Corr. author affiliation:Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:10
Issue date:October 2008
Publication year:2008
Pages:6365-6372
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:We investigate the interaction between special optical solitons in the sub-strongly non-local nonlinear media. From the light-rays equation, we obtained the evolution rule of the beam centers and found that the ratio of initial separation d0 between solitons and the characteristic length wm of the nonlocal nonlinearity have decisive influence on the interaction. We also found the largest angle below which the solitons can be attracted at oblique incidence. Numerical simulations confirm our theoretical results.
Number of references:22
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911245348
Title:Investigation of lithiation/delithiation mechanism in lithium-tin alloys for anode materials
Authors:Hou, Xian-Hua (0); Hu, She-Jun (0); Li, Wei-Shan (0); Zhao, Ling-Zhi (0); Yu, Hong-Wen (0); Tan, Chun-Lin (0)
Corresponding author:Hou, X.-H.
Corr. author affiliation:School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:4
Issue date:April 2008
Publication year:2008
Pages:2374-2379
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:An ab initio method with the first-principles plane-wave pseudopotentials based on the density functional theory has been used to calculate the physical character and electrochemical performance of various alloy phases in Li-Sn alloy. The results show that Li5Sn2 alloy phase, with relatively small volume expansion ratio and large reversible capacity, is an ideal alloy electrode phase. On the other hand, many kinds of tin thin film electrodes were fabricated by direct current and radio frequency magnetic sputtering on copper foil collector as anode materials for lithium-ion batteries. The values of calculated Li intercalated potential using the CASTEP program are well consistent with the experimental values.
Number of references:23
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811226730
Title:Higher-order effects on self-similar parabolic pulse in the microstructured fibre amplifier
Authors:Liu, Wei-Ci (1); Xu, Wen-Cheng (1); Feng, Jie (1); Chen, Wei-Cheng (1); Li, Shu-Xian (1); Liu, Song-Hao (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectric Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Liu, W.-C.
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:17
Issue:3
Issue date:March 1, 2008
Publication year:2008
Pages:1025-1028
Language:English
ISSN:16741056
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:By considering higher-order effects, the properties of self-similar parabolic pulses propagating in the microstructured fibre amplifier with a normal group-velocity dispersion have been investigated. The numerical results indicate that the higher-order effects can badly distort self-similar parabolic pulse shape and optical spectrum, and at the same time the peak shift and oscillation appear, while the pulse still reveals highly linear chirp but grows into asymmetry. The influence of different higher-order effects on self-similar parabolic pulse propagation has been analysed. It shows that the self-steepening plays a more important role. We can manipulate the geometrical parameters of the microstructured fibre amplifier to gain a suitable dispersion and nonlinearity coefficient which will keep high-quality self-similar parabolic pulse propagation. These results are significant for the further study of self-similar parabolic pulse propagation. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:23
Main heading:Light amplifiers
Controlled terms:Group velocity dispersion - Microstructure - Optical fibers
Uncontrolled terms:Higher-order dispersion - Microstructured fibre amplifier - Nonlinear effects - Self-similar parabolic pulse
Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 951 Materials Science
Treatment:Theoretical (THR)
DOI:10.1088/1674-1056/17/3/046
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711537562
Title:Existence of solutions for first order PBVPs with impulses on time scales
Authors:Wang, Zongyi (1); Weng, Peixuan (1)
Author affiliation:(1) School of Mathematics, South China Normal University, Guangzhou, 510631, China; (2) Department of Mathematics, Huizhou University, Huizhou, 516007 Guangdong, China
Corresponding author:Wang, Z.
(wzy@hzu.)
Source title:Computers and Mathematics with Applications
Abbreviated source title:Comput Math Appl
Volume:56
Issue:8
Issue date:October 2008
Publication year:2008
Pages:2010-2018
Language:English
ISSN:08981221
CODEN:CMAPDK
Document type:Journal article (JA)
Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract:In this paper, we consider some kind of nonlinear periodic differential equation with impulses on time scales, and give some new criteria for the existence of at least one solution by using differential inequalities and fixed point theorems. © 2008.
Number of references:20
Main heading:Difference equations
Controlled terms:Differential equations - Nonlinear equations - Solutions
Uncontrolled terms:Delay differential equation - Existence - Impulsive stability - Lyapunov functional - Schaefer fixed point
Classification code:801 Chemistry - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 921.1 Algebra - 921.2 Calculus - 921.6 Numerical Methods
DOI:10.1016/j.camwa.2008.04.012
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911244510
Title:Propagation properties of self-similar pulse in a dispersion-decreasing fiber with normal group-velocity dispersion
Authors:Zhang, Qiao-Fen (1); Xu, Wen-Cheng (1); Feng, Jie (1); Liu, Song-Hao (1)
Author affiliation:(1) Lab. of Photonic Information Technology, South China Normal University, Guangzhou 510006, China
Corresponding author:Zhang, Q.-F.
(zhqfbaby@)
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:1
Issue date:January 2008
Publication year:2008
Pages:30-34
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:Considering higher-order dispersion effect, the properties of the self-similar parabolic pulse evolution in a dispersion-decreasing optical fiber with normal group-velocity dispersion arc investigated. The results show that parabolic pulses are distorted and the characteristic of exactly self-similarity will be lost due to the higher-order dispersion. The pulse still reveals highly linear chirp but glows into asymmetric. The highly linear chirp in optical pulse allows for efficient and high-quality pulse compression by use of dispersion compensation technique.
Number of references:18
Main heading:Optical fibers
Controlled terms:Dispersion compensation - Fiber optics - Group velocity dispersion - Laser pulses - Light transmission - Nonlinear optics - Pulse compression
Uncontrolled terms:Dispersion decreasing fiber - Nonlinear fiber optics - Propagation properties - Self similar pulse - Third order dispersion
Classification code:741.1 Light/Optics - 744.1 Lasers, General
Treatment:Theoretical (THR)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082711351438
Title:Real-value encryption for optical security system based on holography
Authors:Li, Ping (1); Li, Rong (1)
Author affiliation:(1) School of Physics and Communications Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Li, P.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:5
Issue date:May 2008
Publication year:2008
Pages:957-959
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:A real-value encryption and decryption method is proposed for the optical image security system based on holography. A full-phase image to be encrypted stands side by side a black image in the same size. They together with a random phase mask are Fourier transformed and real part of the result is used as an encrypted image. The addition of encrypted image and the Fourier transformed of the random phase is inverse-Fourier transformed. The intensity values of inverse-Fourier transformed image is adjusted. It gives the exact original image.
Number of references:16
Main heading:Cryptography
Controlled terms:Data recording - Geometrical optics - Holographic interferometry - Holography - Imaging techniques - Interferometry - Laser recording - Photonics - Security systems
Uncontrolled terms:Digital image - Encryption and decryption - Fourier - Intensity values - Optical image security - Optical imaging - Optical security systems - Original images - Phase imaging - Random phase encryption - Random phase masks - Random-phase - Real part - Real-value encryption
Classification code:941.4 Optical Variables Measurements - 914.1 Accidents and Accident Prevention - 746 Imaging Techniques - 744.9 Laser Applications - 743.2 Holographic Applications - 743 Holography - 741.1 Light/Optics - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011399419
Title:Propagation properties of spatial optical solitons in different nonlocal nonlinear media with arbitrary degrees of nonlocality
Authors:Shi, Xinrong (1); Guo, Qi (1); Hu, Wei (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Optik
Abbreviated source title:Optik
Volume:119
Issue:11
Issue date:August 21, 2008
Publication year:2008
Pages:503-510
Language:English
ISSN:00304026
Document type:Journal article (JA)
Publisher:Urban und Fischer Verlag Jena, P.O. Box 100537, Jena, 07705, Germany
Abstract:We address the physical features exhibited by spatial optical solitons propagating in nonlocal Kerr-type media with Gaussian-shaped response and exponential-decay response, respectively. An iteration algorithm based on the split-step Fourier method is developed to obtain the numerical solutions of the solitons for the nonlocal nonlinear Schro¨dinger equation with arbitrary degrees of nonlocality. Our numerical results show that the soliton properties in the normalized system are different with the change of the degree of nonlocality and with the different responses. The profiles undergo a gradual and continuous transition from a Gaussian-shaped function in the strongly nonlocal case to a hyperbolic secant function in the local case for the Gaussian-shaped response, but for the exponential-decay response, the soliton profile is not Gaussian-shaped even in the strongly nonlocal cases. For the same response function, the stronger the nonlocality is, the higher the critical powers for solitons are and the larger of the phase shifts of the solitons. For the same degrees of nonlocality, when the degrees of nonlocality is larger enough, both the critical power and the phase shift for the Gaussian-shaped response are larger than that for the exponential-decay response. © 2007 Elsevier GmbH. All rights reserved.
Number of references:33
Main heading:Solitons
Controlled terms:Iterative methods - Nonlinear equations - Numerical methods - Phase shift - Photovoltaic effects - Trellis codes
Uncontrolled terms:Arbitrary degrees - Continuous transitions - Critical power - Dinger equation - Gaussian - Hyperbolic secant - Iteration algorithms - Non local - Non-locality - Nonlocal nonlinear media - Numerica l results - Numerical solutions - Physical features - Propagation properties - Response functions - Spatial optical solitons - Split-Step Fourier Method (SSFM)
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 703.1 Electric Networks - 723.2 Data Processing and Image Processing - 921.1 Algebra - 921.6 Numerical Methods
DOI:10.1016/j.ijleo.2007.06.021
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611208410
Title:Effects of sapphire substrates surface treatment on the ZnO thin films grown by magnetron sputtering
Authors:Wang, Yinzhen (1); Chu, Benli (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631, China
Corresponding author:Wang, Y.Z.
(agwyz@.cn)
Source title:Physica B: Condensed Matter
Abbreviated source title:Phys B Condens Matter
Volume:403
Issue:12
Issue date:June 1, 2008
Publication year:2008
Pages:1979-1982
Language:English
ISSN:09214526
CODEN:PHYBE3
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The surface treatment effects of sapphire substrate on the ZnO thin films grown by magnetron sputtering were studied. The sapphire substrates properties have been investigated by means of atomic force microscopy (AFM) and X-ray diffraction rocking curves (XRCs). The results show that sapphire substrate surfaces have the best quality by CMP with subsequent chemical etching. The surface treatment effects of sapphire substrate on the ZnO thin films were examined by X-ray diffraction (XRD) and photoluminescence (PL) measurements. Results show that the intensity of (0 0 2) diffraction peak of ZnO thin films on sapphire substrates treated by CMP with subsequent chemical etching was strongest, FWHM of (0 0 2) diffraction peak is the narrowest and the intensity of UV peak of PL spectrum is strongest, indicating surface treatment on sapphire substrate preparation may improve ZnO thin films crystal quality and photoluminescent property. © 2007 Elsevier B.V. All rights reserved.
Number of references:14
Main heading:Thin films
Controlled terms:Atomic force microscopy - Magnetron sputtering - Sapphire - Surface treatment - Zinc oxide
Uncontrolled terms:Sapphire substrate - ZnO thin films
Classification code:482.2.1 Gems - 539.3 Metal Plating - 714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 804.2 Inorganic Compounds
Treatment:Experimental (EXP)
DOI:10.1016/j.physb.2007.11.003
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711542376
Title:A novel hybrid model for information processing basing on rough sets and fuzzy SVM
Authors:Xian, Guang-Ming (1); Zeng, Bi-Qing (1)
Author affiliation:(1) Computer Engineering Department, Nanhai Campus, South China Normal University, Foshan 528225, China
Corresponding author:Xian, G.-M.
(Xgm20011@)
Source title:Proceedings - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Abbreviated source title:Proc. - Int. Conf. Multimedia Ubiquitous Eng., MUE
Monograph title:Proceedings - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Issue date:2008
Publication year:2008
Pages:320-323
Article number:4505743
Language:English
ISBN-10:0769531342
ISBN-13:9780769531342
Document type:Conference article (CA)
Conference name:2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Conference date:April 24,2008 - April 26,2008
Conference location:Busan, Korea, Republic of
Conference code:73172
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Rough set theory (RST) is a new effective tool in dealing with vagueness and uncertainty information from a large number of data. Fuzzy support vector machine (FSVM) has become the focus of research in machine learning. And it greatly improves the capabilities of fault-tolerance and generalization of standard support vector machine. The hybrid model of RS-FSVM inherits the merits of RS and FSVM, and is applied into fused image quality evaluation in this paper. RST is used as preprocessing step to improve the performances of FSVM. A large number of experimental results show that when the number training samples are enough RS-SVM can achieve higher precision of classification than methods of FSVM and SVM. © 2008 IEEE.
Number of references:16
Main heading:Rough set theory
Controlled terms:Artificial intelligence - Fault tolerance - Fuzzy sets - Hybrid sensors - Image quality - Image retrieval - Learning systems - Quality assurance - Rapid solidification - Real time systems - Reliability - Set theory - Vectors
Uncontrolled terms:Hybrid model - International conferences - Vagueness and uncertainty
Classification code:933 Solid State Physics - 732.2 Control Instrumentation - 741 Light, Optics and Optical Devices - 802.3 Chemical Operations - 913.3 Quality Assurance and Control - 921 Mathematics - 921.1 Algebra - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 922.2 Mathematical Statistics - 731.5 Robotics - 421 Strength of Building Materials; Mechanical Properties - 461.4 Ergonomics and Human Factors Engineering - 531 Metallurgy and Metallography - 723.5 Computer Applications - 537.1 Heat Treatment Processes - 723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence - 722.4 Digital Computers and Systems
DOI:10.1109/MUE.2008.68
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516230
Title:Cresyl diphenyl phosphate as flame retardant additive for lithium-ion batteries
Authors:Zhou, Daiying (1); Li, Weishan (1); Tan, Chunlin (1); Zuo, Xiaoxi (1); Huang, Youju (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China; (2) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China
Corresponding author:Li, W.
(liwsh@scnu.)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:184
Issue:2
Issue date:October 1, 2008
Publication year:2008
Pages:589-592
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:To improve the safety of lithium-ion batteries, cresyl diphenyl phosphate (CDP) was used as a flame retardant additive in a LiPF6 electrolyte solution. The flammability of the electrolytes containing CDP and the electrochemical performances of the cells, LiCoO2/Li, graphite/Li and the battery LiCoO2/graphite with these electrolytes, were studied by measuring the self-extinguishing time of the electrolytes, the variation of surface temperature of the battery and the charge/discharge curve of the cells or battery. It is found that the addition of CDP to the electrolyte provides a significant suppression in the flammability of the electrolyte and an improvement in the thermal stability of battery. On the other hand, the electrochemical performances of the cells become slightly worse due to the application of CDP in the electrolyte. This alleviated trade-off between the flammability and thermal stability and cell performances provides a possibility to formulate a nonflammable electrolyte by using CDP. © 2008 Elsevier B.V. All rights reserved.
Number of references:12
Main heading:Lithium alloys
Controlled terms:Fire fighting equipment - Flame spraying - Food additives - Lithium - Lithium batteries - Lithium compounds
Uncontrolled terms:Cresyl diphenyl phosphate (CDP) - Fame-retardant - Flame retardants - Lithium-ion batteries
Classification code:542.4 Lithium and Alloys - 702.1.1 Primary Batteries - 804.1 Organic Compounds - 813.1 Coating Techniques - 822.3 Food Products - 914.2 Fires and Fire Protection
DOI:10.1016/j.jpowsour.2008.03.008
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011254193
Title:Effects of preparation condition and particle size distribution on fumed silica gel valve-regulated lead-acid batteries performance
Authors:Chen, M.Q. (1); Chen, H.Y. (1); Shu, D. (1); Li, A.J. (1); Finlow, D.E. (2)
Author affiliation:(1) Key Lab of Technology on Electrochemical Energy Storage and Power Generation, Guangdong Universities, School of Chemistry and Environment, South China Normal University, Guangzhou, Guangdong 510006, China; (2) Shawnee State University, Portsmouth, OH 45662, United States
Corresponding author:Chen, H.Y.
(battery@scnu.)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:181
Issue:1
Issue date:June 15, 2008
Publication year:2008
Pages:161-171
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The effects of three types of fumed silica on the electrochemical properties of gelled electrolytes have been investigated by means of cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), transmission electron microscope (TEM) and the Brunauer, Emmett and Teller (BET) technique. The CV and EIS results show that a moderate mechanical dispersion of fumed silica in the H2SO4 solution has important effects on the electrochemical properties of the gelled electrolyte. The optimal mechanical dispersion time is closely related to the operating temperature during preparation of gel, as well as the silica particle size and its distribution. A high stirring rate improves the electrode capacity and decreases the viscosity of the gelled electrolyte. With moderate mechanical dispersion, gelled electrolytes prepared from different fumed silica particles exhibit equal electrode capacities. © 2008 Elsevier B.V. All rights reserved.
Number of references:39
Main heading:Lead acid batteries
Controlled terms:Cyclic voltammetry - Electrochemical impedance spectroscopy - Electrolytes - Particle size analysis - Silica gel - Transmission electron microscopy
Uncontrolled terms:Fumed silica - Gel electrolytes - Gel preparation condition - Valve regulated lead acid (VRLA) batteries
Classification code:702.1.2 Secondary Batteries - 741.3 Optical Devices and Systems - 801.4.1 Electrochemistry - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 951 Materials Science
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.jpowsour.2008.03.009
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084311656503
Title:Structure and properties of partially epoxidized soybean oil
Authors:Yang, L. (1); Dai, H. (1); Yi, A. (1); Lin, B. (1); Li, G. (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510631, China
Corresponding author:Yang, L.
(yanglt63@.cn)
Source title:Journal of Thermal Analysis and Calorimetry
Abbreviated source title:J Therm Anal Calor
Volume:93
Issue:3
Issue date:September 2008
Publication year:2008
Pages:875-879
Language:English
ISSN:13886150
CODEN:JTACF7
Document type:Journal article (JA)
Publisher:Kluwer Academic Publishers, Van Godewijckstraat 30, Dordrecht, 3311 GZ, Netherlands
Abstract:In the present study, the characteric-structure relationship of epoxidized soybean oils (ESO) with various degrees of epoxidation has been investigated. FTIR analysis was used to identify the relative extent of epoxidation of the samples during the epoxidation reaction. The viscosities of ESO were much higher than that of the raw oil, viscosity increased with degree of epoxidation. The viscous-flow activation energy of ESO was determined to be higher than that of the raw oil (20.72 to 77.93% higher). Thermogravimetry analysis (TG) of ESO was used to investigate the thermodynamic behavior of the samples. With increasing degree of epoxidation, the thermal stability of the samples initially decreased, then increased at the final reacting stage. Differential scanning calorimeter (DSC) indicated that the melting point of ESO was higher than that of soybean oil. Gel permeation chromatography (GPC) indicated the molecular mass of the samples increased initially, then decreased, with an increase in the extent of epoxidation. © 2008 Springer Science+Business Media, LLC.
Number of references:16
Main heading:Melting point
Controlled terms:Activation energy - Chromatographic analysis - Colloids - Differential scanning calorimetry - Digital cameras - Epoxidation - Fourier transform infrared spectroscopy - Gelation - Gravimetric analysis - Hydrodynamics - Laser interferometry - Thermochemistry - Thermodynamic stability - Viscosity
Uncontrolled terms:Differential scanning calorimeters - DSC - Epoxidation reactions - Epoxidized soybean oil - Epoxidized soybean oils - Flow activation energies - FTIR analyses - GPC - Soybean oils - Structure and properties - Thermal stabilities - Thermogravimetry - Thermogravimetry analyses
Classification code:801.4 Physical Chemistry - 802.2 Chemical Reactions - 802.3 Chemical Operations - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 941.4 Optical Variables Measurements - 944.6 Temperature Measurements - 801.3 Colloid Chemistry - 631.1 Fluid Flow, General - 631.1.1 Liquid Dynamics - 631.2 Hydrodynamics - 641.1 Thermodynamics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 743.2 Holographic Applications - 744.9 Laser Applications - 801 Chemistry
DOI:10.1007/s10973-008-9043-x
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911601847
Title:Enhanced sensitivity of Arabidopsis anthocyanin mutants to photooxidation: A study with fluorescence imaging
Authors:Shao, Ling (1); Shu, Zhan (1); Peng, Chang-Lian (1); Lin, Zhi-Fang (3); Yang, Cheng-Wei (1); Gu, Qun (4)
Author affiliation:(1) College of Life Science, Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, South China Normal University, Guangzhou 510631, China; (2) College of Life Science, Zhao Qing University, Zhaoqing 526061, China; (3) South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (4) Zealquest Laboratory for Ecological Research, Zealquest Scientific Technology Co. Ltd., Shanghai 200333, China
Corresponding author:Peng, C.-L.
(pengchl@scib.)
Source title:Functional Plant Biology
Abbreviated source title:Funct. Plant Biol.
Volume:35
Issue:8
Issue date:2008
Publication year:2008
Pages:714-724
Language:English
ISSN:14454408
CODEN:FPBUCP
Document type:Journal article (JA)
Publisher:CSIRO, P.O. Box 1139, Collingwood, VIC 3066, Australia
Abstract:Chlorophyll fluorescence imaging and antioxidative capability in detached leaves of the wild-type Arabidopsis thaliana ecotype Landsberg erecta (Ler) and in three mutants deficient in anthocyanin biosynthesis (tt3, tt4 and tt3tt4) were investigated under photooxidation stress induced by methyl viologen (5μm) in the light. In comparison with the wild-type (WT) plant, photooxidation resulted in significant decreases in the contents of total phenolics and flavonoid, total antioxidative capability and chlorophyll fluorescence parameters (Fv/Fm, qP, ΦPSII, NPQ and ETR) as determined by chlorophyll fluorescence imaging, and in an increase in cell-membrane leakiness in the three anthocyanin mutants. The sequence of sensitivity to photooxidation in the leaves of the four phenotypes were tt3tt4 (deficient in both chalcone synthase locus (CHS) and dihydroflavonol 4-reductase locus (DFR))>tt4 (deficient in CHS)>tt3 (deficient in DFR)>WT. The results demonstrate that anthocyanins might, along with other antioxidants, protect the photosynthetic apparatus against photooxidative damage. An interesting phenomenon was observed over the 270min of the photooxidative treatment, that is, fluorescence imaging revealed that qP, ΦPSII and ETR appeared in three phases (fall &rarr partial recovery &rarr rapid fall). This was considered to be a modulation of reversible deactivation in PSII to cope with the moderate oxidative stress in the first two stages of short-term treatment (<150min), followed finally by damage to PSII under severe oxidative stress with prolonged treatment. © CSIRO 2008.
Number of references:41
Main heading:Light emission
Controlled terms:Biochemical engineering - Biochemistry - Chlorophyll - Fluorescence - Luminescence - Phenols - Photooxidation - Photoresists - Plants (botany) - Porphyrins
Uncontrolled terms:Anthocyanin biosynthesis - Arabidopsis - Arabidopsis thaliana - Chlorophyll fluorescence - Chlorophyll fluorescence imaging - Enhanced sensitivity - Flavonoid - Fluorescence imaging - Methyl viologen - Reversible deactivation of PSII - Stress induced - Total phenolics - Wild-type
Classification code:461.9 Biology - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801.2 Biochemistry - 804.1 Organic Compounds - 805.1.1 Biochemical Engineering
DOI:10.1071/FP08069
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258817
Title:Entanglement generation with coherent light via cross-Kerr-nonlinearity
Authors:Zhang, Zhi-Ming (1); Yang, Jian (1); Yu, Yafei (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Zhang, Z.-M.
(zmzhang@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:682706
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:We propose a scheme for generating entangled states of light fields. This scheme only requires the cross-Kerr nonlinear interaction between coherent light-beams, followed by a homodyne detection. Therefore, this scheme is within the reach of current technology. We study in detail the generation of the entangled states between two modes, and that among three modes. In addition to the Bell states between two modes and the W states among three modes, we find plentiful new kinds of entangled states. Finally, the scheme can be extend to generate the entangled states among more than three modes.
Number of references:21
Main heading:Quantum entanglement
Controlled terms:Coherent light - Molecular dynamics - Optical Kerr effect - Quantum optics
Uncontrolled terms:Cross-Kerr nonlinearity - Entangled states - Entanglement generation - Homodyne detection - Nonlinear interaction
Classification code:741.1 Light/Optics - 801.4 Physical Chemistry - 931.4 Quantum Theory; Quantum Mechanics
Treatment:Theoretical (THR)
DOI:10.1117/12.755488
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611692516
Title:Research and design on P2P based reliable reputation management system
Authors:Liu, Shouqiang (1); Qi, Deyu (2); Chen, Baogang (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) College of Computer Science and Engineering, South China University of Technology, Guangzhou 510640, China
Corresponding author:Liu, S.
(cssqliu@.cn)
Source title:Proceedings - ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008
Abbreviated source title:Proc. - ISECS Int. Colloq. Comput., Commun., Control., Manage., CCCM
Volume:3
Monograph title:Proceedings - ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008
Issue date:2008
Publication year:2008
Pages:390-393
Article number:4609863
Language:English
ISBN-13:9780769532905
Document type:Conference article (CA)
Conference name:ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008
Conference date:August 03,2008 - August 04,2008
Conference location:Guangzhou, China
Conference code:73824
Sponsor:IEEE; IITA Intelligent Information Technology Application Research; IEEE Technology Management Council; IEEE Computer Society; Institute of Electrical and Electronics Engineers
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Since the anonymity and openess of P2P, in P2P networks, servicesr may be misused by providing tampered files, viruses and Trojan Horses. But existing researches on reputation system for P2P networks are still limited to the resistance of some attacks. This paper provides a new measure by adding a server into the reputation system to record all users' actions, such as uploading, downloading, judging and getting judgments, defending the attack etc. It is proved to be feasible and efficient. Finally, Conclusion and some prospects are proposed. © 2008 IEEE.
Number of references:12
Main heading:Network management
Controlled terms:Client server computer systems - Computer viruses - Management
Uncontrolled terms:Attacks - P2P Network - Reputation - System architecture - Trust management
Classification code:717.1 Optical Communication Systems - 722.3 Data Communication, Equipment and Techniques - 722.4 Digital Computers and Systems - 723 Computer Software, Data Handling and Applications - 912.2 Management
DOI:10.1109/CCCM.2008.383
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083411466875
Title:On sum of powers of the Laplacian eigenvalues of graphs
Authors:Zhou, Bo (0)
Corresponding author:Zhou, B.
(zhoubo@scnu.)
Corr. author affiliation:Department of Mathematics, South China Normal University, Guangzhou, 510631, China
Source title:Linear Algebra and Its Applications
Abbreviated source title:Linear Algebra Its Appl
Volume:429
Issue:8-9
Issue date:Oct 16 2008
Publication year:2008
Pages:2239-2246
Language:English
ISSN:00243795
CODEN:LAAPAW
Document type:Journal article (JA)
Publisher:Elsevier Inc., New York, NY 10010, United States
Abstract:For a graph G and a real α does not equal 0, we study the graph invariant sα (G) - the sum of the αth power of the non-zero Laplacian eigenvalues of G. The cases α = 2, frac(1, 2) and - 1 have appeared in different problems. Here we establish some properties for sα with α does not equal 0, 1. We also discuss the cases α = 2, frac(1, 2). © 2008 Elsevier Inc. All rights reserved.
Number of references:17
DOI:10.1016/j.laa.2008.06.023
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084611702705
Title:Electronic structure and optical properties of GaN with Mn-doping
Authors:Xing, Hai-Ying (0); Fan, Guang-Han (0); Zhao, De-Gang (0); He, Miao (0); Zhang, Yong (0); Zhou, Tian-Ming (0)
Corresponding author:Xing, H.-Y.
(hy.xing@.cn)
Corr. author affiliation:Institute of Optoelectronic Material and Technology, South China Normal University, Guangzhou 501631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:10
Issue date:October 2008
Publication year:2008
Pages:6513-6519
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:Calculations of the electronic structure and the density of states of GaN with Mn are carried out by means of first-principles plane-wave pesudopotential method based on density functional theory. The results reveal a 100% spin polarized impurity band in band structure of Ga1-xMnxN due to hybridization of Mn 3d and N 2p orbitals. The material is half metallic and suited for spin injectors. In addition, a peak of refractive index can be observed near the energy gap. The absorption coefficient increases in the UV region with the increase of the Mn content.
Number of references:37
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811567997
Title:High order dispersion effect of Ginzburg-Landau equation and its self-similar analytical solutions
Authors:Feng, Jie (0); Xu, Wen-Cheng (0); Liu, Wei-Ci (0); Li, Shu-Xian (0); Liu, Song-Hao (0)
Corresponding author:Feng, J.
Corr. author affiliation:School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:8
Issue date:August 2008
Publication year:2008
Pages:4978-4983
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:Using the methods based on the technique of self-similar analyzing, we find the parabolic asymptotic self-similar analytical solutions with third-order dispersion effect of constant coefficient Ginzburg-Landau equation which considers both the influence of high order dispersion and gain dispersion on the evolution of self-similar pulse. The self-similar amplitude function, phase function, strict linear chirp function and effective temporal pulse width are given in the paper. The results show that self-similar pulses still have linear chirp and remarkable third-order dispersion effect. And these theoretical results are consistent with numerical simulations.
Number of references:21
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811363776
Title:Detecting unambiguously non-Abelian geometric phases with trapped ions
Authors:Zhang, Xin-Ding (1); Wang, Z.D. (2); Hul, Liang-Bin (1); Zhang, Zhi-Ming (3); Zhu, Shi-Liang (1)
Author affiliation:(1) Institute for Condensed Matter Physics, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, China; (2) Department of Physics, Center of Theoretical and Computational Physics, University of Hong Kong, Pokfulam Road, Hong Kong, Hong Kong; (3) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, China
Corresponding author:Zhu, S.-L.
(slzhu@scnu.)
Source title:New Journal of Physics
Abbreviated source title:New J. Phys.
Volume:10
Issue date:April 15, 2008
Publication year:2008
Article number:043031
Language:English
ISSN:13672630
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:We propose an experimentally feasible scheme to disclose the noncommutative effects induced by a light-induced non-Abelian gauge structure with trapped ions. Under an appropriate configuration, a true non-Abelian gauge potential naturally arises in connection with the geometric phase associated with two degenerated dark states in a four-state atomic system interacting with three pulsed laser fields. We show that the population in the atomic state at the end of a composed path formed by two closed loops C1 and C2 in the parameter space can be significantly different from the composed counter-ordered path. This population difference is directly induced by the noncommutative feature of non-Abelian geometric phases and can be detected unambiguously with current technology. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Number of references:41
Main heading:Ions
Controlled terms:Atomic physics - Atoms - Electrolysis - Gages - Geometry - Pulsed laser applications - Pulsed laser deposition
Uncontrolled terms:Atomic states - Atomic systems - Closed loops - dark states - Geometric phase - Geometric phases - Non-Abelian gauge - Pulsed laser fields - Trapped ions
Classification code:744.9 Laser Applications - 801 Chemistry - 801.4.1 Electrochemistry - 921 Mathematics - 931.3 Atomic and Molecular Physics - 943.3 Special Purpose Instruments
DOI:10.1088/1367-2630/10/4/043031
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258668
Title:Spatial and temporal changes in Bax subcellular localization during NPe6-PDT-induced apoptosis 68570D
Authors:Liu, Lei (1); Xing, Da (1); Chen, Wei R. (1); Wan, Qingling (1); Zhou, Feifan (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Biomedical Engineering Program, College of Mathematics and Science, University of Central Oklahoma, Edmond, OK 73034, United States
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570D
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Photodynamic therapy (PDT) employing photosensiter N-aspartyl chlorin e6 (NPe6) can induce lysosome disruption and initiate the intrinsic apoptotic pathway. Bax, a member of the Bcl-2 family of proteins, is an essential regulator of apoptosis. Bax is normally found in the cytosol of healthy cells, and translocates to mitochondria in response to many apoptotic stimuli. In this study, using real-time single-cell analysis, we have investigated the kinetics of Bax distribution during NPe6-induced apoptosis in ASTC-a-1 cells. In order to monitor Bax subcellular distribution, cells were stained with GFP-Bax and Mito Tracker Red. The results show that Bax redistribution occurred at about 170 min after treated with NPe6-PDT, and then sequestered into clusters associated with the mitochondira within 30 min. Our data clearly showed the spatial and temporal changes in Bax distribution in living cells during NPe6-induced apoptosis.
Number of references:17
Main heading:Cell death
Controlled terms:Mitochondria - Photodynamic therapy - Photosensitizers - Proteins
Uncontrolled terms:Bax distribution - N-aspartyl chlorin e6 (NPe6)
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 461.9 Biology - 741.1 Light/Optics - 804.1 Organic Compounds
Treatment:Theoretical (THR)
DOI:10.1117/12.762026
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083211432124
Title:An examination of students' perception of blended e-learning in chinese higher education
Authors:Zhao, Jianhua (1)
Author affiliation:(1) School of Information Technology in Education, South China Normal University, Guangzhou 510631, China
Corresponding author:Zhao, J.
(jhuazhao@)
Source title:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Abbreviated source title:Lect. Notes Comput. Sci.
Volume:5093 LNCS
Monograph title:Technologies for E-Learning and Digital Entertainment - Third International Conference, Edutainment 2008, Proceedings
Issue date:2008
Publication year:2008
Pages:162-170
Language:English
ISSN:03029743
E-ISSN:16113349
ISBN-10:3540697349
ISBN-13:9783540697343
Document type:Conference article (CA)
Conference name:3rd International Conference on Technologies for E-Learning and Digital Entertainment, Edutainment 2008
Conference date:June 25,2008 - June 27,2008
Conference location:Nanjing, China
Conference code:72801
Sponsor:China Society of Image and Graphics, VR Committee; Zhejiang University; National Science Foundation of China (NSFC); International Journal of Virtual Reality (IJVR); International Journal of Computer Games Technology (IJCGT)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:Blended e-learning is a brand-new approach which is used for technology integration currently in China. Meanwhile, many kinds of Virtual Learning Environments (VLEs), such as WebCT, BlackBoard, and WebCL are emerging in the field of Chinese Higher Education in the past decade for serving this new model. How do Chinese students think about this new approach? There is no much research addressed on it. We design a small-scale research for examining students' perceptions of blended learning, which is based upon an undergraduate course offered at School of Information Technology in Education in South China Normal University. 20 students registered in the course. The findings of this study reveal that students' understandings of blended learning are formed through the course, and their attitudes toward it are positive. © 2008 Springer-Verlag Berlin Heidelberg.
Number of references:14
Main heading:Teaching
Controlled terms:Curricula - Digital arithmetic - E-learning - Education - Education computing - Internet - Multimedia systems - Students - Taxonomies - Technology
Uncontrolled terms:Blended learning - Chinese students - Digital entertainment - Edutainment - Face-to-face learning - Higher education - International conferences - New approaches - New model - Online learning - South china - Technology integration - Virtual learning environment - Virtual learning environments
Classification code:903 Information Science - 901.2 Education - 901 Engineering Profession - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
DOI:10.1007/978-3-540-69736-7_18
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511483542
Title:A simple scheme for quantum networks based on orbital angular momentum states of photons
Authors:Su, Zhi-Kun (1); Wang, Fa-Qiang (1); Jin, Rui-Bo (1); Liang, Rui-Sheng (1); Liu, Song-Hao (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China
Corresponding author:Wang, F.-Q.
(fq_wang@)
Source title:Optics Communications
Abbreviated source title:Opt Commun
Volume:281
Issue:19
Issue date:October 1, 2008
Publication year:2008
Pages:5063-5066
Language:English
ISSN:00304018
CODEN:OPCOB8
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:We propose a new quantum network scheme using orbital angular momentum states of photons to route the network and spin angular momentum states to encode the information. A four-user experimental scheme based on this efficient quantum network is analyzed in detail, which is particularly appealing for the free space quantum key distribution. Users can freely exchange quantum keys with each other. © 2008 Elsevier B.V. All rights reserved.
Number of references:25
Main heading:Public key cryptography
Controlled terms:Angular momentum - Optical beam splitters - Photons - Quantum chemistry - Quantum cryptography
Uncontrolled terms:Experimental scheme - Free spaces - Orbital angular momentum - Orbital-angular-momentum states - Quantum key distributions - Quantum network - Quantum networks - Spin angular momentum
Classification code:716 Telecommunication; Radar, Radio and Television - 741.3 Optical Devices and Systems - 801.4 Physical Chemistry - 931.1 Mechanics - 931.3 Atomic and Molecular Physics
DOI:10.1016/j.optcom.2008.06.048
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083611516241
Title:Effects of graphite on electrochemical performance of Sn/C composite thin film anodes
Authors:Zhao, L.Z. (1); Hu, S.J. (1); Ru, Q. (1); Li, W.S. (1); Hou, X.H. (1); Zeng, R.H. (1); Lu, D.S. (1)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou, 510006, China; (2) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China; (3) Department of Mathematics and Physics, Wuyi University, Jiangmen, 529020, China
Corresponding author:Li, W.S.
(liwsh@scnu.)
Source title:Journal of Power Sources
Abbreviated source title:J Power Sources
Volume:184
Issue:2
Issue date:October 1, 2008
Publication year:2008
Pages:481-484
Language:English
ISSN:03787753
CODEN:JPSODZ
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The composite thin films of tin with 0 wt.%, 3.2 wt.%, 6.0 wt.%, and 11.8 wt.% graphite on the Cu foil were fabricated by magnetron sputtering (MS). The surface morphology, the composition and the electrochemical performance of the composite films were characterized by scanning electron microscopy (SEM), energy disperse spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and galvanostatic charge/discharge (GC) measurements. It is found that the capacity loss of tin can be significantly reduced by its composite with graphite, but its discharge capacity decreases with increasing the content of graphite. The composite with 6.0 wt.% graphite show its good discharge capacity and cyclic stability. Its initial discharge capacity is 750 mAh g-1 and it keeps 85% of its initial discharge capacity after 10 cycles, comparing to the 14% for the pure tin. © 2008 Elsevier B.V. All rights reserved.
Number of references:10
Main heading:X ray photoelectron spectroscopy
Controlled terms:Carbon - Composite films - Copper - Discharge (fluid mechanics) - Electric discharges - Electron energy loss spectroscopy - Graphite - Imaging techniques - Industrial management - Magnetron sputtering - Metal cladding - Molecular orbitals - Molecular spectroscopy - Optical design - Photoelectron spectroscopy - Thick films - Thin films - Tin - Titanium compounds - Vapor deposition - X ray analysis
Uncontrolled terms:Anode - Capacity losses - Charge/discharge - Composite film - Composite thin films - Cu foil - Cyclic stability - Discharge capacities - Electrochemical performances - Galvanostatic - Initial discharge capacities - Lithium-ion battery - Scanning electron microscopy (SEM) - Thin film anodes - X-ray diffraction - X-ray photoelectron spectroscopy XPS
Classification code:912.2 Management - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 746 Imaging Techniques - 801 Chemistry - 801.4 Physical Chemistry - 804 Chemical Products Generally - 804.1 Organic Compounds - 712.1 Semiconducting Materials - 421 Strength of Building Materials; Mechanical Properties - 482.2 Minerals - 535.1 Metal Rolling - 701.1 Electricity: Basic Concepts and Phenomena - 539.3 Metal Plating - 546.2 Tin and Alloys - 631.1.1 Liquid Dynamics - 544.1 Copper
DOI:10.1016/j.jpowsour.2008.04.074
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083311451765
Title:The current of a particle along a microtubule in microscopic plasma
Authors:Wei, Li (1); Jun-fang, Chen (1); Teng, Wang (2); Xiu-Qiong, Lai (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, Guangdong 510006, China; (2) School of Computer, South China Normal University, 510006 Guangzhou, China
Corresponding author:Jun-fang, C.
(tolwwt@)
Source title:Physica B: Condensed Matter
Abbreviated source title:Phys B Condens Matter
Volume:403
Issue:18
Issue date:September 1, 2008
Publication year:2008
Pages:3214-3216
Language:English
ISSN:09214526
CODEN:PHYBE3
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Transport of a particle along the axis of a microtubule in a plasma-enhanced chemical vapor deposition (PECVD) system is investigated. The current, respectively, as a function of the temperature, the magnetic field and the external force is obtained. The value and direction of the current may be controlled by changing the above parameters. © 2008 Elsevier B.V. All rights reserved.
Number of references:13
Main heading:Plasma enhanced chemical vapor deposition
Controlled terms:Magnetic domains - Magnetic fields - Metallizing - Plasma deposition - Plasmas - Vapor deposition
Uncontrolled terms:External forcing - Magnetic (CE) - Microtubule (MT) - Plasma-enhanced chemical vapor deposition (PECVD)
Classification code:539.3 Metal Plating - 701.2 Magnetism: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 813.1 Coating Techniques - 932.3 Plasma Physics
DOI:10.1016/j.physb.2008.04.006
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811576103
Title:Improving encoding efficiency for Bounded Model Checking
Authors:Yang, Jinji (1); Su, Kaile (3); Chen, Qingliang (4)
Author affiliation:(1) School of Computer, South China Normal University, Guangzhou, China; (2) Dept. of Computer Science, Sun Yat-Sen University, Guangzhou, China; (3) Key Laboratory of High Confidence Software Technologies, Peking University, Ministry of Education, Beijing, China; (4) Dept. of Computer Science, Jinan University, Guangzhou, China
Corresponding author:Yang, J.
(yangjj@scnu.)
Source title:Proceedings - 2nd IFIP/IEEE International Symposium on Theoretical Aspects of Software Engineering, TASE 2008
Abbreviated source title:Proc. - IFIP/IEEE Int. Symp. Theor. Asp. of Softw. Eng., TASE
Monograph title:Proceedings - 2nd IFIP/IEEE International Symposium on Theoretical Aspects of Software Engineering, TASE 2008
Issue date:2008
Publication year:2008
Pages:31-38
Article number:4549883
Language:English
ISBN-13:9780769532493
Document type:Conference article (CA)
Conference name:2nd IFIP/IEEE International Symposium on Theoretical Aspects of Software Engineering, TASE 2008
Conference date:June 17,2008 - June 19,2008
Conference location:Nanjing, China
Conference code:73400
Sponsor:IEEE Computer Society; IFIP; Nanjing University
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:Bounded Model Checking (BMC) has played an important role in verification of software, embedded systems and protocols. The idea of BMC is to encode Finite State Machine (FSM) and Linear Temporal Logic (LTL) verification specification into satisfiability (SAT) instances, and then to search for a counterexample via various SAT tools. Improving encoding technology of BMC can generate a SAT instance easy to solve, and therefore is essential to improve the efficiency of BMC. In this paper, we improve the encoding of BMC by combining the characteristic of FSM state transition and semantics of LTL, get a simple and efficient recursion formula which is useful to efficiently generate SAT instances. We present an efficient algorithm to encode the modal operator (safety formula) in BMC. The experiments for comparative analysis shows that this encoding algorithm is more powerful than the existing two mainstream encoding algorithms in both the scale of generated SAT instances and the solving efficiency. The methodology presented in this paper is also valuable for optimization of other modal operator encodings in BMC. © 2008 IEEE.
Number of references:17
Main heading:Boolean functions
Controlled terms:Computer networks - Computer software selection and evaluation - Embedded systems - Information theory - Integrated circuits - Machine tools - Mathematical operators - Model checking - Software engineering - Temporal logic - Verification
Uncontrolled terms:Bounded model checking - Encoding algorithms - SAT instances
Classification code:722 Computer Systems and Equipment - 723 Computer Software, Data Handling and Applications - 723.1 Computer Programming - 723.5 Computer Applications - 912.2 Management - 921 Mathematics - 921.1 Algebra - 721.2 Logic Elements - 603.1 Machine Tools, General - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
DOI:10.1109/TASE.2008.23
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084411664600
Title:A sociogram analysis on group interaction in an online discussion forum
Authors:Zhao, Jianhua (1)
Author affiliation:(1) School of Information Technology in Education, South China Normal University, Guangzhou 510631, China
Corresponding author:Zhao, J.
(jhuazhao@)
Source title:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Abbreviated source title:Lect. Notes Comput. Sci.
Volume:5145 LNCS
Monograph title:Advances in Web Based Learning - ICWL 2008 - 7th International Conference, Proceedings
Issue date:2008
Publication year:2008
Pages:377-389
Language:English
ISSN:03029743
E-ISSN:16113349
ISBN-10:3540850325
ISBN-13:9783540850328
Document type:Conference article (CA)
Conference name:7th International Conference on Web Based Learning, ICWL 2008
Conference date:August 20,2008 - August 22,2008
Conference location:Jinhua, China
Conference code:73957
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:Group interaction reveals how group members communicate each other when they are working for a group task. The purposes for analysing group interaction are to know how students engaged in the group learning activities and what kinds of social networks are built. 23 students enrol a course and they are organised into 5 groups in this study. Each group has to complete two tasks in a group discussion forum which is offered by WebCL system (an online learning environment). The messages in the discussion forums posted by students in these 5 groups are analysed through sociogram and the results illustrate the characteristics of group interaction in this course. © 2008 Springer-Verlag Berlin Heidelberg.
Number of references:22
Main heading:Online systems
Controlled terms:E-learning - Education - Flow interactions - Internet - Network protocols - Sensor networks - Students - Teaching
Uncontrolled terms:A sociogram analysis - Discussion forums - Group discussions - Group interaction - Group interactions - Group learnings - Group members - Know hows - Online discussion forum - Online discussion forums - Online learning environment - Online learning environments - Social networks
Classification code:901.2 Education - 732 Control Devices - 731.1 Control Systems - 723 Computer Software, Data Handling and Applications - 912.4 Personnel - 722.4 Digital Computers and Systems - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 631.1 Fluid Flow, General - 718 Telephone Systems and Related Technologies; Line Communications
DOI:10.1007/978-3-540-85033-5_37
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090311859644
Title:Hydrothermal synthesis and crystal structure study of two novel 3-D mellitates {Nd2[C6(COO)6] (H2O)6} and {Ho2[C6(COO)6](H2O)6}
Authors:TANG, Xiaoyong (1); YUE, Shantang (1); LI, Ping (1); WANG, Ning (1); LIU, Yingliang (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Corresponding author:YUE, S.
(yuesht@scnu.)
Source title:Journal of Rare Earths
Abbreviated source title:J Rare Earth
Volume:26
Issue:6
Issue date:December 2008
Publication year:2008
Pages:800-803
Language:English
ISSN:10020721
CODEN:JREAE6
Document type:Journal article (JA)
Publisher:Chinese Rare Earth Society, 2 Xinjiekouwai Dajie, Beijing, 100088, China
Abstract:Two novel 3-D coordination compounds, Nd2[C6(COO)6](H2O)6 (1) and Ho2[C6(COO)6](H2O)6 (2), were hydrothermally synthesized from mellitic acid and neodymium perchlorate (or holmium perchlorate) in the alkaline aqueous solution and characterized with elemental analysis, TG, IR spectrum, and single crystal X-ray diffraction. The two compounds were isostructural and crystallized in the orthorhombic system, space group Pnnm, with a=1.3531 (4) nm, b=0.6687 (2) nm, c=1.0224(3) nm, V=0.92523(5) nm3, Z=4, D=2.630 g/cm3, F(000)=696.0, Goof=1.052. Final R indices [I >2Σ(I)]: R1=0.0195, wR2=0.0382 for 1; a=1.3411(2) nm, b=0.6586(1) nm, c=1.0116(2) nm, V=0.8935(3) nm3, Z=4, D=2.877 g/cm3, F(000)=724.0, Goof=1.061. Final R indices [I >2Σ(I)]: R1=0.0200, wR2=0.0479 for 2. In the two compounds 1 and 2, the mellitic acid ligand, in which all the carboxylate groups were deprotonated, had only one kind of coordination mode to bridge metal ions to form four-connected three-dimensional diamondiod networks. © 2008 The Chinese Society of Rare Earths.
Number of references:15
Main heading:Hydrothermal synthesis
Controlled terms:Acids - Carboxylation - Complexation - Coordination reactions - Crystal structure - Holmium - Holmium compounds - Metal ions - Neodymium - Neodymium compounds - Rare earth elements - Rare earths - Single crystals - Synthesis (chemical) - Three dimensional - Vanadium compounds - X ray diffraction analysis
Uncontrolled terms:Alkaline aqueous solutions - Carboxylate groups - Coordination compounds - Coordination modes - Elemental analyses - Hydrothermally synthesized - IR spectrum - isostructural - mellitic acid - Orthorhombic systems - Space groups - X-ray diffractions
Classification code:804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 803 Chemical Agents and Basic Industrial Chemicals - 902.1 Engineering Graphics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 931.3 Atomic and Molecular Physics - 802.2 Chemical Reactions - 531.1 Metallurgy - 531.2 Metallography - 533 Ore Treatment and Metal Refining - 481.2 Geochemistry - 547.2 Rare Earth Metals - 801 Chemistry - 801.4 Physical Chemistry - 723.5 Computer Applications
DOI:10.1016/S1002-0721(09)60009-0
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085111797148
Title:Decoherence of two qubits in non-Markovian reservoirs without the rotating-wave approximation
Authors:Wang, Fa-Qiang (1); Zhang, Zhi-Ming (1); Liang, Rui-Sheng (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Wang, F.-Q.
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:78
Issue:6
Issue date:December 9, 2008
Publication year:2008
Article number:062318
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:The decoherence of two initially entangled qubits in non-Markovian reservoirs has been investigated exactly without Born-Markovian approximation or rotating-wave approximation (RWA). The nonperturbative quantum master equation is derived and its exact solution is obtained. The decoherence behavior of two qubits, initially entangled in Bell states, has been investigated in the weak coupling regime and strong coupling regime. The results show that the counter-rotating wave terms have obvious influence on the decoherence behavior in the non-Markovian regime. © 2008 The American Physical Society.
Number of references:25
Main heading:Rotation
Controlled terms:Polynomial approximation
Uncontrolled terms:Bell states - Decoherence - Entangled qubits - Exact solutions - Markovian - Markovian approximations - Nonperturbative - Quantum master equations - Rotating waves - Strong couplings - Wave approximations - Weak couplings
Classification code:601.1 Mechanical Devices - 921.6 Numerical Methods - 931.1 Mechanics
DOI:10.1103/PhysRevA.78.062318
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011778585
Title:Unexpected direct iron-fluorine bonds in trifluorophosphane iron complexes: An alternative to bridging trifluorophosphane and difluorophosphido groups
Authors:Zou, Kong (1); Li, Qian-Shu (1); Xie, Yaoming (3); King, R. Bruce (1); Schaefer III, Henry F. (3)
Author affiliation:(1) Center for Computational Quantum Chemistry, South China Normal University, Guangzhou 510631, China; (2) Institute of Chemical Physics, Beijing Institute of Technology, Beijing 100081, China; (3) Department of Chemistry, Center for Computational Chemistry, University of Georgia, Athens, GA 30602, United States
Corresponding author:Li, Q.-S.
Source title:Chemistry - A European Journal
Abbreviated source title:Chem. Eur. J.
Volume:14
Issue:35
Issue date:December 8, 2008
Publication year:2008
Pages:11149-11157
Language:English
ISSN:09476539
E-ISSN:15213765
CODEN:CEUJED
Document type:Journal article (JA)
Publisher:Wiley-VCH Verlag, P.O. Box 101161, Weinheim, D-69451, Germany
Abstract:The iron trifluorophosphane complexes [Fe(PF3)n] (n = 4, 5), [Fe2-(PF3)n] (n = 8, 9), [H 2Fe(PF3)4], and [Fe2(PF 2)2(PF3)6] have been studied by density functional theory. The lowest energy structures of [Fe(PF 3)4] and [Fe-(PF3)5] are a triplet tetrahedron and a singlet trigonal bipyramid, respectively. Both cis and trans octahedral structures were found for [H2Fe(PF3) 4] with the cis isomer lying lower in energy by &asyum; 10 kcal mol -1. The lowest energy structure for [Fe2(PF 3)8] has two [Fe-(PF3)4] units linked only by an iron-iron bond of length 2.505 A˚ consistent with the formal Fe=Fe double bond required to give both iron atoms the favored 18-electron configuration. In the lowest energy structure for [Fe 2(PF3)4] one of the iron atoms has inserted into a P-F bond of one of the PF3 ligands to give a structure [(F3P)4Fe ←-PF2Fe(F)(PF3) 4] with a bridging PF2 group and a direct Fe-F bond. A bridging PF3 group is found in a considerably higher energy [Fe 2(PF3)9] structure at &asyum; 30 kcal mol -1 above the global minimum. However, this bridging PF3 group keeps the two iron atoms too far apart (&asyum; 4 A˚) for the direct iron-iron bond required to give the iron atoms the favored 18-electron configuration. The preferred structure for [Fe2(PF2) 2(PF3)6] has a bridging PF2 group, as expected. However, this bridging PF2 group bonds to one of the iron atoms through an P-Fe covalent bond and to the other iron through an F&rarrFe dative bond, leaving an uncomplexed phosphorus lone pair. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
Number of references:67
Main heading:Iron compounds
Controlled terms:Atomic physics - Atoms - Bond length - Chemical bonds - Density functional theory - Electrons - Fluorine - Ligands - Phosphorus
Uncontrolled terms:Cis isomers - Dative bonds - Density functional calculations - Double bonds - Electron configurations - Global minimums - Group bonds - Iron atoms - Iron complexes - Lone pairs - Lowest energy structures - Octahedral structures - Phosphane ligands - Trifluorophosphane
Classification code:931.4 Quantum Theory; Quantum Mechanics - 931.3 Atomic and Molecular Physics - 922.1 Probability Theory - 804.2 Inorganic Compounds - 933.3 Electronic Structure of Solids - 804.1 Organic Compounds - 801.4 Physical Chemistry - 801.2 Biochemistry - 701.1 Electricity: Basic Concepts and Phenomena - 804 Chemical Products Generally
DOI:10.1002/chem.200801248
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111422685
Title:The experimental research on a stable free-space quantum key distribution system with low noise
Authors:Wang, Jin-Dong (0); Lu, Wei (0); Zhao, Feng (0); Liu, Xiao-Bao (0); Guo, Bang-Hong (0); Zhang, Jing (0); Huang, Yu-Xian (0); Lu, Yi-Qun (0); Liu, Song-Hao (0)
Corresponding author:Wang, J.-D.
(jindongwqkd@)
Corr. author affiliation:Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:7
Issue date:July 2008
Publication year:2008
Pages:4214-4218
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:A free-space quantum key distribution system is demonstrated experimentally which makes use of polarized coherent short laser pulses and the differential phase shift scheme with a Faraday-Michelson interferometer. The system features low noise, high stability and low bit-error rate. In the proposed experimental scheme, polarizated short laser pulse of several nanoseconds duration is made to transmit through the free space to decrease noise and a low bit-error rate less than 6% is achieved.
Number of references:12
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084411672010
Title:T1 theorem for inhomogeneous besov and Triebel-Lizorkin spaces
Authors:Han, Yan-Chang (0)
Corresponding author:Han, Y.-C.
(hanyc291@)
Corr. author affiliation:Department of Mathematics, South China Normal University, Guangzhou 510631, China
Source title:Zhongshan Daxue Xuebao/Acta Scientiarum Natralium Universitatis Sunyatseni
Abbreviated source title:Zhongshan Daxue Xuebao
Volume:47
Issue:4
Issue date:July 2008
Publication year:2008
Pages:1-4+10
Language:Chinese
ISSN:05296579
CODEN:CHTHAJ
Document type:Journal article (JA)
Publisher:Journal of Zhongshan University, Guangzhou, China
Abstract:The T1 theorems for the inhomogeneous Besov and Triebel-Lizorkin spaces are established by the discrete Calderon type reproducing formula and the Plancherel-Polya characterization for the inhomogeneous Besov and Triebel-Lizorkin spaces on space of homogeneous type. These results are new even for Rd.
Number of references:11
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811567991
Title:Quantum key distribution based on time coding and phase coding
Authors:Zhang, Jing (0); Wang, Fa-Qiang (0); Zhao, Feng (0); Lu, Yi-Qun (0); Liu, Song-Hao (0)
Corresponding author:Zhang, J.
Corr. author affiliation:Laboratory of Photonic Information Technology, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:8
Issue date:August 2008
Publication year:2008
Pages:4941-4946
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:A new quantum key distribution scheme is proposed to realize both phase coding and time coding based on two unbalanced Mach-Zehnder interferometers. The pulses which are discarded in the phase coding scheme can be coded in time coding, so the useful bit rate in the present scheme can be doubled. At the same time, the phase coding keys and the time coding keys are obtained. We can use one group of keys to communicate and the other one to guard against eavesdropping, or combine both of them to form new keys. This scheme has favorable application prospect.
Number of references:12
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080311040757
Title:Generating entanglement of photon-number states with coherent light via cross-Kerr nonlinearity
Authors:Zhang, Zhi-Ming (1); Yang, Jian (1); Yu, Yafei (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Zhang, Z.-M.
(zmzhang@scnu.)
Source title:Journal of Physics B: Atomic, Molecular and Optical Physics
Abbreviated source title:J Phys B At Mol Opt Phys
Volume:41
Issue:2
Issue date:January 28 2008
Publication year:2008
Article number:025502
Language:English
ISSN:09534075
E-ISSN:13616455
CODEN:JPAPEH
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:We propose a scheme for generating entangled states of light fields. This scheme only requires the cross-Kerr nonlinear interaction between coherent light beams, followed by a homodyne detection. Therefore, this scheme is within the reach of current technology. We study in detail the generation of the entangled states between two modes, and that among three modes. In addition to the Bell states between two modes and the W states among three modes, we find plentiful new kinds of entangled states. Finally, the scheme can be extended to generate the entangled states among more than three modes. © 2008 IOP Publishing Ltd.
Number of references:21
Main heading:Nonlinear equations
Controlled terms:Coherent light - Electronic states - Optical Kerr effect - Photons
Uncontrolled terms:Bell states - Entangled states - Homodyne detection - Light fields
Classification code:741.1 Light/Optics - 921.1 Algebra - 931.3 Atomic and Molecular Physics - 933.3 Electronic Structure of Solids
Treatment:Theoretical (THR)
DOI:10.1088/0953-4075/41/2/025502
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083711541368
Title:Amplified spontaneous emission injection wavelength-locked Fabry-Perot laser diodes
Authors:Meng, Hongyun (1); Lee, Changhee (2)
Author affiliation:(1) Laboratory of Laser Processing Technology, South China Normal University, Guangzhou 510631, China; (2) Department of Electrical Engineering and Computer Science, KAIST, Korea, Republic of
Corresponding author:Meng, H.
(hymeng@scnu.)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:8
Issue date:August 2008
Publication year:2008
Pages:1181-1184
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The wavelength-division-multiplexing passive optical network (WDM-PON) has been considered as a promising solution for future broadband access networks. The WDM-PON based on the amplified spontaneous emission (ASE) injected wavelength-locked Fabry-Perot (F-P) laser diodes has gained great attention because of its cost effectiveness and color-free operation. The gain, side-mode suppression ratio (SMSR) and relative intensity noise (R1N) of the wavelength-locked F-P laser diode (LD) have been studied experimentally. And the relationship between injection current and the reflectivity of front facet of F-P LD, for a given ASE and gain, has been studied theoretically and experimentally. The best RIN and SMSR can be got with the injection current which is 1.3-1.7 times of threshold current. And there is an optimum front facet for a given ASE injection power and gain with the smallest injection current.
Number of references:10
Main heading:Wavelength division multiplexing
Controlled terms:Broadband networks - Computer networks - Cost effectiveness - Diodes - Fabry-Perot interferometers - Fiber optic networks - Ladder networks - Lasers - Optical data processing - Spontaneous emission
Uncontrolled terms:Injection currents - Optical fiber communication - Passive optical network - Semiconductor laser - Wavelength-locked
Classification code:941.3 Optical Instruments - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 911.2 Industrial Economics - 912.2 Management - 912.3 Operations Research - 722 Computer Systems and Equipment - 703.1 Electric Networks - 703.2 Electric Filters - 711 Electromagnetic Waves - 718 Telephone Systems and Related Technologies; Line Communications - 714.1 Electron Tubes - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 714.2 Semiconductor Devices and Integrated Circuits
DOI:10.3788/CJL20083508.1181
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083511494151
Title:Detection of caspase-3 activation by monitoring FRET efficiency in living cells
Authors:Chen, Tong-Sheng (1); Lu, Ying-Ying (1); Wang, Long-Xiang (1); Qu, Jun-Le (2)
Author affiliation:(1) Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Key Laboratory of Optoelectronic Devices and Systems, Institute of Optoelectronics, Shenzhen University, Shenzhen 518060, China
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering
Abbreviated source title:Shenzhen Daxue Xuebao (Ligong Ban)
Volume:25
Issue:3
Issue date:July 2008
Publication year:2008
Pages:233-237
Language:Chinese
ISSN:10002618
Document type:Journal article (JA)
Publisher:Editorial Office of Journal of Shenzhen University, Shenzhen University, Shenzhen, 518060, China
Abstract:A novel method to calculate FRET efficiency by fitting emission spectra of the donor-acceptor pair was used to detect DHA-induced caspase-3 activation in living cells stably expressed SCAT3. The results indicated that DHA effectively inhibited the proliferation of ASTC-a-1 cells via a concentration-dependent manner. Dose-dependent activation of caspase-3 was determined during the DHA-induced apoptosis. The decreased FRET efficiency was in response to the increased caspase-3 activities in DHA-treated cells. The report has proved, for the first time, that FRET efficiency is an appropriate method that can be used as a real time quantitative measurement of DHA-induced activation of caspase-3 in living cells.
Number of references:8
Main heading:Cells
Controlled terms:Cell death - Concentration (process) - Cytology - Emission spectroscopy
Uncontrolled terms:Caspase-3 - Caspase-3 activation - Cell apoptosis - Dihydroartemisinin(DHA) - Donor-acceptor pair - Dose-dependent - Emission spectrums - Fluorescence emission spectra - Fluorescence resonance energy transfer (FRET) - Induced apoptosis - Living cells - Novel methods - Quantitative measurements - Real time
Classification code:461.2 Biological Materials and Tissue Engineering - 461.9 Biology - 741.1 Light/Optics - 802.3 Chemical Operations
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811226755
Title:Practical non-orthogonal decoy state quantum key distribution with heralded single photon source
Authors:Mi, Jing-Long (1); Wang, Fa-Qiang (1); Lin, Qing-Qun (1); Liang, Rui-Sheng (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China
Corresponding author:Wang, F.-Q.
(fqwang98@)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:17
Issue:4
Issue date:April 1, 2008
Publication year:2008
Pages:1178-1183
Language:English
ISSN:16741056
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:Recently the performance of the quantum key distribution (QKD) is substantially improved by the decoy state method and the non-orthogonal encoding protocol, separately. In this paper, a practical non-orthogonal decoy state protocol with a heralded single photon source (HSPS) for QKD is presented. The protocol is based on 4 states with different intensities, i.e. one signal state and three decoy states. The signal state is for generating keys; the decoy states are for detecting the eavesdropping and estimating the fraction of single-photon and two-photon pulses. We have discussed three cases of this protocol, i.e. the general case, the optimal case and the special case. Moreover, the final key rate over transmission distance is simulated. For the low dark count of the HSPS and the utilization of the two-photon pulses, our protocol has a higher key rate and a longer transmission distance than any other decoy state protocol. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:22
Main heading:Photons
Controlled terms:Network protocols - Signal encoding
Uncontrolled terms:Decoy state - Eavesdropping - Heralded single photon source - Non-orthogonal encoding protocol - Quantum key distribution
Classification code:716.1 Information Theory and Signal Processing - 723 Computer Software, Data Handling and Applications - 931.3 Atomic and Molecular Physics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1088/1674-1056/17/4/005
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083411474115
Title:Structural and optical characterization of Ce-doped Gd2SiO5 films by sol-gel technique
Authors:Wang, Yinzhen (1); Chu, Benli (1); He, Qinyu (1); Xu, Jun (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631, China; (2) Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
Corresponding author:Wang, Y.
(agwyz@.cn)
Source title:Applied Surface Science
Abbreviated source title:Appl Surf Sci
Volume:254
Issue:21
Issue date:August 30, 2008
Publication year:2008
Pages:6799-6801
Language:English
ISSN:01694332
CODEN:ASUSEE
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Cerium-doped Gd2SiO5 (GSO:Ce) films have been prepared on (1 1 1) silicon substrates by the sol-gel technique. Annealing was performed in the temperature range from 400 to 1000 °C. X-ray diffraction (XRD), and atomic force microscopy (AFM) were used to investigate the structure and morphology of GSO:Ce films. Results showed that GSO:Ce film starts to crystallize at about 600 °C, GSO:Ce films have a preferential (0 2 1) orientation, as the annealing temperature increase, the (0 2 1) peak intensity increases, the full width of half maximum (FWHM) decreases, and the grain size of GSO:Ce films increases. Emission spectra of GSO:Ce films were measured, results exhibit the characteristic blue emission peak at 427 nm. © 2008 Elsevier B.V. All rights reserved.
Number of references:16
Main heading:Cerium
Controlled terms:Cerium compounds - Gadolinium
Uncontrolled terms:Emission spectra - Films - GSO:Ce - Morphology - Optical characterizations - Sol-gel - Structure
Classification code:547.2 Rare Earth Metals - 804.1 Organic Compounds
DOI:10.1016/j.apsusc.2008.04.072
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711092645
Title:Monitoring of blood flow by drug stimulation on mouse brain using non-invasive photoacoustic imaging technology
Authors:Yang, Sihua (1); Lao, Yeqi (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Yang, S.
(yangsh@scnu.)
Source title:Key Engineering Materials
Abbreviated source title:Key Eng Mat
Volume:364-366 II
Issue date:2008
Publication year:2008
Pages:1123-1127
Language:English
ISSN:10139826
CODEN:KEMAEY
Document type:Journal article (JA)
Publisher:Trans Tech Publications Ltd, Laubisrutistr.24, Stafa-Zuerich, CH-8712, Switzerland
Abstract:The highlight of photoacosutic imaging (PAI) is a method that combines ultrasonic resolution with high contrast due to light absorption. Photoacoustic signals carry the information of the light absorption distribution of biological tissue, which is often related to its character of structure, physiological and pathological changes because of different physiology conditions in response to different light absorption coefficients. A non-invasive PAI system was developed and successfully acquired in vivo images of mouse brain. Based on the intrinsic PA signals from the brain, the vascular network and the detailed structures of the mouse cerebral cortex were clearly visualized. The ability of PAI monitoring of cerebral hemodynamics was also demonstrated by mapping of the mouse superficial cortex with and without drug stimulation. The extracted PA signals intensity profiles obviously testified that the cerebral blood flow (CBF) in the mouse brain was changed under the stimulation of acetazolamide (ACZ). The experimental results suggest that PAI can provide non-invasive images of blood flow changes, and has the potential for brain function detection.
Number of references:15
Main heading:Imaging techniques
Controlled terms:Blood - Drug products - Hemodynamics - Noninvasive medical procedures - Photoacoustic effect - Tissue
Uncontrolled terms:Cerebral blood flow - Drug stimulation - Non-invasive photoacoustic imaging technology - Ultrasonic resolution
Classification code:461.1 Biomedical Engineering - 461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 741.1 Light/Optics - 746 Imaging Techniques - 751.1 Acoustic Waves
Treatment:Theoretical (THR); Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258673
Title:Analysis of caspase-3 in ASTC-a-1 cells treated with mitomycin C using acceptor photobleaching techniques
Authors:Wang, Huiying (1); Chen, Tongsheng (1); Sun, Lei (1)
Author affiliation:(1) MOE Key Libratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Chen, T.
(chentsh@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570J
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Caspase-3 is a key activated death protease, which catalyzes the specific cleavage of many cellular proteins and induces DNA cleavage eventually. In this report, cells were treated with mitomycin C (MMC) at different concentration and its activity was detected by cell counting kit (CCK-8). Based on results of CCK-8, cells were treated with 10μg/mL MMC and Hoechst 33258 has been used to observe cell apoptosis. Fluorescence resonance energy transfer (FRET) and confocal microscopy have been used to the effect of MMC on the caspase3 activation in living cells. Human lung adenocarcinoma cells (ASTC-a-1) was transfected with plasmid SCAT3 (pSCAT3)/CKAR FRET receptor. Acceptoi photobleaching techniques of FRET plasmid has been used to destruct fluorophore of cells stably expressing SCAT3 reporter on a fluorescence confocal microscope. The activity of caspase3 can be analyzed by FRET dynamics of SCAT3 in living cells. Our results show that MM C can induce ASTC-a-1 cell apoptosis through activation of caspase3.
Number of references:17
Main heading:Cell culture
Controlled terms:Biological organs - Confocal microscopy - DNA sequences - Photobleaching
Uncontrolled terms:Caspase3 - Mitomycin C
Classification code:461.2 Biological Materials and Tissue Engineering - 461.8 Biotechnology - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.9 Laser Applications - 801 Chemistry
Treatment:Theoretical (THR)
DOI:10.1117/12.761440
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082511331513
Title:All-optical switching using controlled formation of large volume three-dimensional optical matter
Authors:Liu, Jin (1); Dai, Qiao-Feng (1); Meng, Zi-Ming (1); Huang, Xu-Guang (1); Wu, Li-Jun (1); Guo, Qi (1); Hu, Wei (1); Lan, Sheng (1); Gopal, Achanta Venu (2); Trofimov, V.A. (3)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong 510006, China; (2) DCMP and MS, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India; (3) Department of Computational Mathematics and Cybenetics, M. V. Lomonosov Moscow State University, Moscow 119992, Russia
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:92
Issue:23
Issue date:2008
Publication year:2008
Article number:233108
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:We demonstrated the creation of large volume three-dimensional optical matter by optically trapping polystyrene spheres in a capillary and the resulting switching operation. The formation of optical matter was confirmed by examining the diffraction pattern of the trap region. Optical switching with an extinction ratio as large as ∼20 dB was realized. From the dynamics of the optical matter, it was found that the transition from a disordered state to an ordered one appeared to be quite fast while the recovery of the system to the disordered state took a much longer time. © 2008 American Institute of Physics.
Number of references:21
Main heading:Optical switches
Controlled terms:Computer networks - Diffraction - Dynamical systems - Holographic interferometry - Three dimensional
Uncontrolled terms:All-optical switching - American Institute of Physics (AIP) - Disordered states - Extinction ratio (ER) - Optical (PET) (OPET) - Optical switching - Polystyrene spheres - Switching operations - Three dimensional (3D) - Transition (Jel Classifications:E52 ,E41 ,E31)
Classification code:711.1 Electromagnetic Waves in Different Media - 716 Telecommunication; Radar, Radio and Television - 723.5 Computer Applications - 741.3 Optical Devices and Systems - 743.2 Holographic Applications - 921 Mathematics
DOI:10.1063/1.2944233
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082511331508
Title:Enhancement of switching speed by laser-induced clustering of nanoparticles in magnetic fluids
Authors:Deng, Hai-Dong (1); Liu, Jin (1); Zhao, Wei-Ren (3); Zhang, Wei (3); Lin, Xu-Sheng (1); Sun, Ting (1); Dai, Qiao-Feng (1); Wu, Li-Jun (1); Lan, Sheng (1); Gopal, Achanta Venu (4)
Author affiliation:(1) Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong 510006, China; (2) College of Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; (3) College of Science and Technology Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China; (4) DCMP and MS, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
Corresponding author:Lan, S.
(slan@scnu.)
Source title:Applied Physics Letters
Abbreviated source title:Appl Phys Lett
Volume:92
Issue:23
Issue date:2008
Publication year:2008
Article number:233103
Language:English
ISSN:00036951
CODEN:APPLAB
Document type:Journal article (JA)
Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States
Abstract:The switching speed of magnetic fluids was investigated by using laser light of different power densities as well as incandescent light. It was found that the switching speed exhibited a strong dependence on incident power density and there existed an optimum value at which the fastest switching operation was achieved. In addition, it was revealed that the clustering of magnetic nanoparticles, which became resolved at large power densities, resulted in a rapid agglomeration of nanoparticles when a magnetic field was applied. It is suggested that the optical trapping force of the laser beam is responsible for the formation of clusters. © 2008 American Institute of Physics.
Number of references:28
Main heading:Magnetic materials
Controlled terms:Agglomeration - Coagulation - Flow of solids - Fluids - Laser beams - Lasers - Magnetic fields - Magnetic fluids - Magnetism - Nanoparticles - Nanostructured materials - Nanostructures - Optical engineering - Pulsed laser deposition - Switching
Uncontrolled terms:American Institute of Physics (AIP) - Applied (CO) - Incident power - Large power - Laser light - Laser-induced - Magnetic (CE) - Magnetic nanoparticles (MNP's) - Optical trapping force - Optimum value - Power density (PD) - Switching operations - Switching speeds
Classification code:802.3 Chemical Operations - 761 Nanotechnology - 744.9 Laser Applications - 744.8 Laser Beam Interactions - 931.1 Mechanics - 744.1 Lasers, General - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 708.4 Magnetic Materials - 701.2 Magnetism: Basic Concepts and Phenomena - 741 Light, Optics and Optical Devices
DOI:10.1063/1.2942388
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258651
Title:Nucleoplasms viscosity of living cells investigated by fluorescence correlation spectroscopy
Authors:Liang, Lifang (1); Xing, Da (1); Chen, Tongsheng (1); Pei, Yihui (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Liang, L.
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68262T
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Fluorescence correlation spectroscopy (FCS) is a new kind of real-time, high-speed and single-molecule technique. It is used to detect the kinetic characteristics of fluorescent dye such as diffusion coefficient in the aqueous solution. Combined with confocal microscope optics, it has been now widely applied in cell biological research. Through a time correlation analysis of spontaneous intensity fluctuations, this technique with EGFP as a probe is capable of determining viscosity of fluids according to Stokes-Einstein equation. Nucleoplasms viscosity is an important physical parameter to quantify the rheological characteristics of the nucleoplasm. Investigation on nucleoplasmic viscosity plays an important role in further understanding intranuclear environment. In this paper, FCS is introduced to noninvasively investigate nucleoplasmic viscosity of living cells. The results show that nucleoplasmic viscosity of lung adenocarcinoma (ASTC-a-1) cells is 2.55±0.61 cP and nucleoplasmic viscosity is larger than cytoplasmic viscosity at 37°C (pH 7.4). In addition, significant changes in nucleoplasmic viscosity are detected by FCS when cells are exposed to hyper or hypotonic medium. Our study suggests that FCS can be used to detect the kinetic characteristics of biomolecules in living cells and thus helps to investigate the dynamic changes of the microenvironment in the cell.
Number of references:28
Main heading:Fluorescence spectroscopy
Controlled terms:Cells - Confocal microscopy - Optical correlation - Solutions - Viscosity
Uncontrolled terms:Cytoplasmic viscosity - Fluorescence correlation spectroscopy (FCS) - Hypertonic medium - Nucleoplasmic viscosity
Classification code:941.4 Optical Variables Measurements - 941.3 Optical Instruments - 803 Chemical Agents and Basic Industrial Chemicals - 744.9 Laser Applications - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 461.2 Biological Materials and Tissue Engineering
Treatment:Experimental (EXP)
DOI:10.1117/12.760226
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811231582
Title:CATLIP: A novel knowledge discovery technology
Authors:Liu, Bo (1)
Author affiliation:(1) College of Educational Information and Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Liu, B.
(gavinliuli@)
Source title:Journal of Computational Information Systems
Abbreviated source title:J. Comput. Inf. Syst.
Volume:4
Issue:2
Issue date:April 2008
Publication year:2008
Pages:603-608
Language:English
ISSN:15539105
Document type:Journal article (JA)
Publisher:Binary Information Press, P.O. Box 162, Bethel, CT 06801-0162, United States
Abstract:Today, it is much more frequent to mine complicated data in the field of data mining and the main methods include the practice experience and technology of no-structure data mining. Based on the flexible practicability and broad appliance of graph theory and technology, the research of graph-based data mining has presently been becoming an important direction in this domain. In this paper, we take up with knowledge discovery researching through the technology of correlative graph-based data mining. Combining correlative term graph theory with inductive logic programming technique, we bring forward the concept of the correlative term graph, and study the reasoning of it. Then we design the technology of refutable consequence in CATLIP and the corresponding algorithm. At last an prototype, CATLIP(CorrelAtive Term graph-based extended inductive LogIc Programming) inviting both the idea and technique above, was opened up and turned out its validity via the data demonstration.
Number of references:10
Main heading:Knowledge acquisition
Controlled terms:Correlation theory - Data mining - Graph theory - Logic programming
Uncontrolled terms:Correlative graph - Correlative term graph
Classification code:716.1 Information Theory and Signal Processing - 723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
Treatment:Applications (APP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011776892
Title:Fluorescence analysis of taxol-induced paraptosis-like independent of caspase-3 activation
Authors:Chen, Tong-Sheng (1); Wang, Xiao-Ping (2); Sun, Lei (1); Wang, Hui-Ying (1); Wang, Long-Xiang (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Anesthesiology, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:11
Issue date:November 2008
Publication year:2008
Pages:2623-2627
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:In the present report, the authors for the first time described the characteristics of taxol-induced paraptosis-like for the human lung adenocarcinoma cells (ASTC-a-1). CCK-8 was used to assay the inhibition of taxol on the cells viability. Cell viability was inhibited obviously 24 h after taxol treatment. Confocal fluorescence scanning microscope was used to monitor the morphology changes in cells with taxol treatment. Fluorescence resonance energy transfer (FRET) and acceptor photobleaching techniques were used to analyze the caspase-3 activation in the taxol-induced cell swelling and cell dearth. Taxol induced cell swelling, cytoplasmatic vacuolization and cell death without cell shrinkage, an apoptotic feature, and membrane rupture, a necrotic feature. The emission spectra of scat3 inside living cells expressed stably with scat3 were the same for control (without taxol). Further analysis with FRET and acceptor photobleaching techniques showed that the caspase-3 was not activated by taxol for the cytoplastic vacuoliazation cells expressed stably with scat3 plasmid, suggesting that caspase-3 is not involved in the taxol-inducecd cell swelling, cytoplasmatic vacuolization and cell death. These results show that taxol can induce a novel nonapoptotic PCD resembling the paraptosis in ASTC-a-1 cells.
Number of references:23
Main heading:Cells
Controlled terms:Activation analysis - Cell death - Cell membranes - Cytology - Emission spectroscopy - Energy transfer - Fluorescence - Light emission - Luminescence - Photobleaching - Resonance
Uncontrolled terms:Caspsae-3 - Fluorescence resonance energy transfer (FRET) - Fluorescence spectra - Paraptosis - Taxol (paclitaxel)
Classification code:931.1 Mechanics - 801 Chemistry - 751.1 Acoustic Waves - 741.1 Light/Optics - 931.3 Atomic and Molecular Physics - 701 Electricity and Magnetism - 525.4 Energy Losses (industrial and residential) - 461.9 Biology - 461.2 Biological Materials and Tissue Engineering - 641.2 Heat Transfer
DOI:10.3964/j.issn.1000-0593(2008)11-2623-05
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085011776909
Title:Superficial bladder cancer detection using diffuse reflectance spectral ratio R540/R575 of oxygenated hemoglobin bands
Authors:Wei, Hua-Jiang (1); Xing, Da (1); Wu, Guo-Yong (2); Lu, Jian-Jun (2); Wu, Rong-Hai (3); Gu, Huai-Min (1); He, Bo-Hua (4); Chen, Xue-Mei (5)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China; (3) Department of Urology, Central Hospital of Jiangmen, Jiangmen 529071, China; (4) Department of Surgery, Guangdong College of Pharmacy, Guangzhou 510224, China; (5) Department of Ophthalmology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
Corresponding author:Wei, H.-J.
(weihj@scnu.)
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:11
Issue date:November 2008
Publication year:2008
Pages:2721-2725
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:A low-cost, fast, and noninvasive method for early diagnosis of malignant lesions of mucosa tissue based on diffuse reflectance spectra was applied in the study of the optical biopsy of superficial human bladder cancer. In the present paper, differential diagnosis of superficial human bladder cancer was studied using the diffuse reflectance spectral ratio (R540/R575) of the oxygenated hemoglobin absorption bands at 540 and 575 nm in vitro. Diffuse reflectance spectra for mucosa/submucosa tissues of normal bladder and superficial bladder cancer were measured using a spectrophotometer with an integrating sphere attachment. The results of measurement showed that there were three the diffuse reflectance spectral dips at 415, 542 and 577 nm respectively for mucosa/submucosa tissues of normal bladder and superficial bladder cancer in the spectral range from 400 to 600 nm. The mean diffuse reflectance spectral ratio (R540/R575) of normal bladder mucosa/submucosa tissue decreased slowly with time increase after surgical excision, and the mean diffuse reflectance spectral ratio (R540/R575) of superficial bladder cancer mucosa/submucosa tissue also decreased slowly with time increasing after surgical excision. The mean diffuse reflectance spectral ratios (R540/R575) of normal bladder mucosa/submucosa tissue were 111%, 107%, 104% and 102% after 2, 3, 4 and 5 h after surgical excision respectively, and those of superficial bladder cancer mucosa/submucosa tissue were 98.4%, 95.5%, 93.1% and 91.6% after 2, 3, 4 and 5 h after surgical excision respectively. There were significant differences in mean diffuse reflectance spectral ratio (R540/R575) for mucosa/submucosa tissues between normal bladder and superficial bladder cancer after 2, 3, 4 and 5 h after surgical excision respectively (p < 0.05). Differences in mean diffuse reflectance spectral ratio (R540/R575) for mucosa/submucosa tissues between normal bladder and superficial bladder cancer were 12.6%, 11.5%, 10.9% and 10.4% after 2, 3, 4 and 5 h after surgical excision respectively. It is obvious that pathological changes in bladder mucosa/submucosa tissues induced changes in the component and structure of the tissues, and especially quantitative changes in oxyhemoglobin and de-oxyhemoglobin of tissues obviously. Conclusion of the study provides a new method that can be applied to rapid, low-cost and noninvasive optical biopsy of superficial bladder cancer.
Number of references:22
Main heading:Tissue
Controlled terms:Absorption - Absorption spectroscopy - Biopsy - Diagnosis - Earthquake effects - Hemoglobin - Histology - Reflection
Uncontrolled terms:Absorption bands - Bladder cancers - Differential diagnoses - Diffuse reflectance spectral ratio (R540/R575) - Diffuse reflectance spectroscopy - Diffuse reflectance spectrums - Diffuse reflectances - Early diagnoses - Human bladder cancers - In vitro - Integrating spheres - Malignant lesions - Noninvasive methods - Noninvasive optical biopsies - Optical biopsies - Oxygenated hemoglobins - Pathological changes - Quantitative changes - Spectral dips - Spectral ranges - Spectral ratios - Superficial bladder cancer diagnosis - Surgical excisions
Classification code:941.4 Optical Variables Measurements - 741.1 Light/Optics - 801 Chemistry - 802.3 Chemical Operations - 804 Chemical Products Generally - 931.2 Physical Properties of Gases, Liquids and Solids - 941.3 Optical Instruments - 741 Light, Optics and Optical Devices - 484 Seismology - 461.9 Biology - 461.6 Medicine and Pharmacology - 461.2 Biological Materials and Tissue Engineering - 408.1 Structural Design, General - 711 Electromagnetic Waves
DOI:10.3964/j.issn.1000-0593(2008)11-2721-05
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111419773
Title:Study of the influence of photon recycling on extraction efficiency in a slab light emitting diode
Authors:YiChen, Shuai (1); GuangHan, Fan (1); TianMing, Zhou (1); ShuWen, Zheng (1)
Author affiliation:(1) Institute of Optoelectronic Material and Devices, South China Normal University, Guangzhou, China
Corresponding author:YiChen, S.
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6841
Monograph title:Solid State Lighting and Solar Energy Technologies
Issue date:2008
Publication year:2008
Article number:684110
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470164
Document type:Conference article (CA)
Conference name:Solid State Lighting and Solar Energy Technologies
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72754
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Photon recycling effect has significant influence on the extraction efficiency of LEDs, which active regions possess high spontaneous emission efficiency, i.e. high material quality. Therefore, the conventional definition of internal quantum efficiency should be revised as pointed out by other researchers. In this work, some more detailed considerations of photon extraction efficiency in LEDs are examined using a simple slab structure. Theoretical modeling results show that in order to improve the overall light conversion efficiency, it is necessary to remove the device substrate, to optimize the overall doping profile design, and to use highly reflective metal contacts or DBR structures.
Number of references:8
Main heading:Extraction
Controlled terms:Conversion efficiency - Diodes - Light emission - Light emitting diodes - Light sources - Lighting - Metal recovery - Photons - Physical optics - Recycling - Renewable energy resources - Solar energy - Solar radiation - Structural metals
Uncontrolled terms:Active regions - Dbr structures - Doping profiles - Extraction efficiency - Internal quantum efficiencies - Material qualities - Photon recycling - Reflective metals - Slab structures - Theoretical modeling
Classification code:707.2 Electric Lamps - 714.1 Electron Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 931.3 Atomic and Molecular Physics - 741.1 Light/Optics - 744 Lasers - 802.3 Chemical Operations - 741.3 Optical Devices and Systems - 707 Illuminating Engineering - 657.1 Solar Energy and Phenomena - 415.1 Metal Structural Materials - 452.3 Industrial Wastes - 525.1 Energy Resources and Renewable Energy Issues - 525.5 Energy Conversion Issues - 531 Metallurgy and Metallography - 615.2 Solar Power
DOI:10.1117/12.761470
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011138155
Title:In vivo photoacoustic imaging of subcutaneous vasculature and vascular anomalies in small animals
Authors:Lao, Yeqi (1); Zhou, Feifan (2); Wang, Huiying (2)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Lao, Y.
(laoyq@scnu.)
Source title:EPJ Applied Physics
Abbreviated source title:EPJ Appl Phys
Volume:41
Issue:2
Issue date:February 2008
Publication year:2008
Pages:151-155
Language:English
ISSN:12860042
E-ISSN:12860050
CODEN:EPAPFV
Document type:Journal article (JA)
Publisher:EDP Sciences, 17 Avenue du Hoggar - BP 112, Les Ulis Cedex A, F-91944, France
Abstract:Photoacoustic imaging is a noninvasive, nonionizing imaging modality that combines the merits of high optical contrast, good ultrasonic resolution and satisfactory imaging depth. These features make it suitable for detecting the pathological changes of subcutaneous vasculature. A setup of photoacoustic imaging system was employed to achieve images of subcutaneous vasculature and subcutaneous tumor-related vascular anomalies in mice in vivo. The networks of subcutaneous vasculature are clearly identified in the photoacoustic images, blood vessels which are invisible to the naked eye under the skin surface and tumor-related abnormal vasculature are also revealed by the photoacoustic system. Moreover, micro blood vessels correlated with the high frequency signals become evident after digital image processing based on high-pass filtering. This work demonstrates that photoacoustic imaging could potentially provide a valuable tool for monitoring the pathological changes of subcutaneous vasculature in early stage. © 2008 EDP Sciences.
Number of references:24
Main heading:Pathology
Controlled terms:Blood vessels - Image resolution - Optical correlation - Photoacoustic effect - Rats - Ultrasonic waves
Uncontrolled terms:Imaging depth - Optical contrast - Photoacoustic imaging - Ultrasonic resolution
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 461.8 Biotechnology - 741.1 Light/Optics - 751.1 Acoustic Waves - 753.1 Ultrasonic Waves
Treatment:Theoretical (THR)
DOI:10.1051/epjap:2008016
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084211647014
Title:Micro-Raman spectroscopy of the interaction between sodium nitrite and oxyhemoglobin
Authors:Shen, Gaoshan (1); Gu, Huaimin (1); Yan, Tianxiu (1); Wei, Huajiang (1)
Author affiliation:(1) Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Shen, G.
(shen-55555@)
Source title:Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title:Zhongguo Jiguang
Volume:35
Issue:9
Issue date:September 2008
Publication year:2008
Pages:1432-1436
Language:Chinese
ISSN:02587025
CODEN:ZHJIDO
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:To explore a new method to dignose methemoglobin, micro-Raman spectroscopy was used to investigate the interaction of sodium nitrite and oxyhemoglobin in aqueous solution, with 514.5 nm exitation. Hemoglobin was obtained from the healthy adult. The results show that the intensity ratio of the oxyhemoglobin marker band 570 cm-1 to the aquomethemoglobin marker band 495 cm-1, and that of low spin state marker band 1586 cm-1 to the high spin state marker band 1555 cm-1 decrease during the interaction. The bands sensitive to the oxidation state shift to higher frequency. This work indicates that micro-Raman spectroscopy could monitor the bioeffects of sodium nitrite on the oxyhemoglobin, and distinguish hemoglobin and aquomethemoglobin. As a new method to detect methemoglobin, micro-Raman spectroscopy may have great potential applications in the diagnosis of methemoglobinemia.
Number of references:17
Main heading:Hemoglobin
Controlled terms:Architectural acoustics - Flow interactions - Raman scattering - Raman spectroscopy - Sodium - Solutions - Spectrum analysis
Uncontrolled terms:Aquomethemoglobin - Oxygenated hemoglobin - Sodium nitrite - Spectroscopy
Classification code:804 Chemical Products Generally - 921 Mathematics - 922.2 Mathematical Statistics - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 803 Chemical Agents and Basic Industrial Chemicals - 402 Buildings and Towers - 461.2 Biological Materials and Tissue Engineering - 549.1 Alkali Metals - 631.1 Fluid Flow, General - 741.1 Light/Optics - 751.3 Architectural Acoustics - 801 Chemistry
DOI:10.3788/CJL20083509.1432
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911244628
Title:Thermal coagulation of human benign prostatic hyperplasia tissues induced changes in the absorption and scattering properties in spectral range from 590 to 1064 nm in vitro
Authors:Wei, Hua-Jiang (1); Xing, Da (1); He, Bo-Hua (2); Wu, Rong-Hai (3); Gu, Huai-Min (1); Wu, Guo-Yong (4); Chen, Xue-Mei (5)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Department of Surgery, Guangdong College of Pharmacy, Guangzhou 510224, China; (3) Department of Urology, Central Hospital of Jiangmen, Jiangmen 529071, China; (4) Department of Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China; (5) Department of Ophthalmology, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
Corresponding author:Wei, H.-J.
Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi
Volume:28
Issue:2
Issue date:February 2008
Publication year:2008
Pages:394-398
Language:Chinese
ISSN:10000593
CODEN:GYGFED
Document type:Journal article (JA)
Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract:The optical properties and their differences of native and coagulated human benign prostatic hyperplasia (BPH) tissues were studied in the spectral range from 590 to 1064 nm in vitro. The measurements were performed using a spectrophotometer with an integrating sphere attachment, and the absorption and scattering properties were assessed from these measurements using the inverse adding-doubling method. The results of measurement showed that the thermal coagulation of BPH tissues induced obviously the decrease in the absorption coefficients in the spectral range from 590 to 1064 nm. The peaks in the absorption coefficients for native and coagulated BPH tissues were respectively 0.438 and 0.416 mm-1 corresponding to the same wavelength of 990 nm, the maximum difference in the absorption coefficients of native and coagulated BPH tissues is 86.79% at 1064 nm, and the minimum difference is 4.74% at 920 nm. The thermal coagulation of BPH tissues induced an increase in the reduced scattering coefficients in the spectral range from 600 to 1064 nm obviously, and induced a decrease in the reduced scattering coefficients at 590 nm obviously. The peaks in the reduced scattering coefficients for native and coagulated BPH tissues were respectively 1.090 and 1.449 mm-1 corresponding to the same wavelength of 970 nm, and other peaks in the reduced scattering coefficients for native and coagulated BPH tissues were respectively 1.116 and 1.627 mm-1 corresponding to the same wavelength of 1050 nm, the maximum difference in the reduced scattering coefficients of native and coagulated BPH tissues is 47.73% at 1064 nm, and the minimum difference is 4.86% at 600 nm.
Number of references:22
Main heading:Tissue
Controlled terms:Absorption - Coagulation - Disease control - Light scattering - Optical properties - Spectrophotometers - Spectrum analysis - Wavelength
Uncontrolled terms:Absorption coefficients - Human benign prostatic hyperplasia tissues - Integrating sphere - Scattering properties - Thermal coagulation
Classification code:461.2 Biological Materials and Tissue Engineering - 461.7 Health Care - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 921 Mathematics - 931.2 Physical Properties of Gases, Liquids and Solids
Treatment:Applications (APP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258821
Title:Quantum secret sharing based on smolin bound entangled states isnot unconditionally secure
Authors:Yu, Ya-Fei (1); Zhang, Zhi-Ming (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China
Corresponding author:Yu, Y.-F.
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:68270C
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:As an important resource of the quantum information engineering, to explore its' possible applications and limits in the field of the secure communication is very necessary. In the paper we analyse the problem of the security of quantum secret sharing with Smolin bound entangled states as the channel quantum state. An intercept-resend strategy of the inner of the legal communicators is proposed to attack the security without be detected by the checking procedure with comparing the results of single-qubit measurement. A conclusion that quantum secret sharing only with Smolin bound entangled states as the channel quantum state isnot unconditionally secure is attained, and a general proof in terms of the quantum correlation is given.
Number of references:16
Main heading:Quantum cryptography
Controlled terms:Channel state information - Communication channels (information theory) - Information systems - Network security - Quantum entanglement
Uncontrolled terms:Bound entangled state - Coherent individual attack - Quantum information - Quantum secret sharing
Classification code:716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 723 Computer Software, Data Handling and Applications - 903.2 Information Dissemination - 931.4 Quantum Theory; Quantum Mechanics
Treatment:Theoretical (THR)
DOI:10.1117/12.756387
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082811356895
Title:Analytic solutions of self-similar pulse based on Ginzburg-Landau equation with constant coefficients
Authors:Feng, Jie (1); Xu, WenCheng (2); Li, ShuXian (2); Liu, SongHao (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) Laboratory of Photonic Information Technology, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Xu, W.
(xuwch@scnu.)
Source title:Science in China, Series G: Physics, Mechanics and Astronomy
Abbreviated source title:Sci. China Ser. G Phys. Mech. Astron.
Volume:51
Issue:3
Issue date:March 2008
Publication year:2008
Pages:299-306
Language:English
ISSN:16721799
E-ISSN:18622844
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:Based on the constant coefficients of Ginzburg-Landau equation that considers the influence of the doped fiber retarded time on the evolution of self-similar pulse, the parabolic asymptotic self-similar solutions were obtained by the symmetry reduction algorithm. The parabolic asymptotic amplitude function, phase function, strict linear chirp function and the effective temporal pulse width of self-similar pulse are given in this paper. And these theoretical results are consistent with the numerical simulations. © 2008 Science in China Press.
Number of references:24
Main heading:Function evaluation
Controlled terms:Asymptotic analysis - Computer simulation - Fiber optics - Laser pulses
Uncontrolled terms:Amplitude functions - Analytic solutions - Constant coefficients - Doped fibers - Evolution (CO) - Ginzburg Landau (TDGL) equation - Linear chirp - Numerical simulations - Phase functions - Pulse width (PW) - Self similar - Self similar solutions - symmetry reductions
Classification code:723.5 Computer Applications - 741.1.2 Fiber Optics - 744.1 Lasers, General - 921 Mathematics - 921.6 Numerical Methods
DOI:10.1007/s11433-008-0019-4
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811567572
Title:On unsymmetric block overrelaxation-type methods for saddle point problems
Authors:Peng, Xiao-Fei (1); Li, Wen (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, W.
(liwen@scnu.)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:203
Issue:2
Issue date:September 15, 2008
Publication year:2008
Pages:660-671
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:The unsymmetric block overrelaxation-type (UBOR-type) method is proposed to attack saddle point problems in this paper. The convergence and the optimal parameters for the method are studied when the iteration parameters satisfy some relationship. Theoretical analyses show that the UBOR-type method has faster asymptotic convergence rate than the SOR-like method and its convergence rate can reach the same as that of the GSOR method at least. Numerical experiments support our theoretical results. Moveover, the numerical results further reveal that the new method can be much more effective than the GSOR method in terms of iteration steps. © 2008 Elsevier Inc. All rights reserved.
Number of references:24
Main heading:Convergence of numerical methods
Controlled terms:Electric network analysis - Iterative methods
Uncontrolled terms:Convergence - GSOR method - Optimal parameters - The saddle point problem - The UBOR-type method
Classification code:703.1.1 Electric Network Analysis - 921.6 Numerical Methods
DOI:10.1016/j.amc.2008.05.014
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084511686505
Title:Lithium intercalation/de-intercalation behavior of a composite Sn/C thin film fabricated by magnetron sputtering
Authors:ZHAO, Lingzhi (1); HU, Shejun (1); LI, Weishan (1); LI, Liming (2); HOU, Xianhua (1)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou, 510006, China; (2) Faculty of Material and Energy, Guangdong University of Technology, Guangzhou, 510006, China; (3) Key Lab of Technology on Electrochemical Energy Storage, Power Generation in Guangdong Universities, Guangzhou, 510006, China; (4) Department of Mathematics and Physics, Wuyi University, Jiangmen, 529020, China
Corresponding author:LI, W.
(liwsh@scnu.)
Source title:Rare Metals
Abbreviated source title:Rare Met
Volume:27
Issue:5
Issue date:October 2008
Publication year:2008
Pages:507-512
Language:English
ISSN:10010521
CODEN:RARME8
Document type:Journal article (JA)
Publisher:Nonferrous Metals Society of China, B12 Fuxing Road, Beijing, 100814, China
Abstract:A tin film of 320 nm in thickness on Cu foil and its composite film with graphite of ∼50 nm in thickness on it were fabricated by magnetron sputtering. The surface morphology, composition, surface distributions of alloy elements, and lithium intercalation/de-intercalation behaviors of the fabricated films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron probe microanalyzer (EPMA), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma atomic emission spectrometry (ICP), cyclic voltammetry (CV), and galvanostatic charge/discharge (GC) measurements. It is found that the lithium intercalation/de-intercalation behavior of the Sn film can be significantly improved by its composite with graphite. With cycling, the discharge capacity of the Sn film without composite changes from 570 mAh/g of the 2nd cycle to 270 mAh/g of the 20th cycle, and its efficiency for the discharge and charge is between 90% and 95%. Nevertheless, the discharge capacity of the composite Sn/C film changes from 575 mAh/g of the 2nd cycle to 515 mAh/g of the 20th cycle, and its efficiency for the discharge and charge is between 95% and 100%. The performance improvement of tin by its composite with graphite is ascribed to the retardation of the bulk tin cracking from volume change during lithium intercalation and de-intercalation, which leads to the pulverization of tin. © 2008 The Nonferrous Metals Society of China.
Number of references:13
Main heading:Tin
Controlled terms:Atomic spectroscopy - Carbon - Composite films - Composite materials - Copper - Cyclic voltammetry - Discharge (fluid mechanics) - Emission spectroscopy - Fabrication - Graphite - Inductively coupled plasma - Lithium - Lithium alloys - Magnetron sputtering - Magnetrons - Metal cladding - Microscopic examination - Photoelectron spectroscopy - Photoresists - Thick films - Titanium compounds - X ray analysis - X ray photoelectron spectroscopy
Uncontrolled terms:Alloy elements - Charge/discharge - Cu foils - Discharge capacities - Electron probes - Galvanostatic - Inductively coupled plasma atomic emission spectrometries - Intercalation behaviors - Lithium intercalations - Microanalyzer - Performance improvements - Surface distributions - TiN films - Volume changes - X-ray diffractions - X-ray photoelectron spectroscopies
Classification code:745.1 Printing - 812.2 Refractories - 811 Cellulose, Paper and Wood Products - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 804 Chemical Products Generally - 801.4.1 Electrochemistry - 801 Chemistry - 746 Imaging Techniques - 813.1 Coating Techniques - 951 Materials Science - 942.2 Electric Variables Measurements - 932.3 Plasma Physics - 813.2 Coating Materials - 932.1 High Energy Physics - 913.4 Manufacturing - 817.1 Polymer Products - 931.3 Atomic and Molecular Physics - 741.3 Optical Devices and Systems - 407 Maritime and Port Structures; Rivers and Other Waterways - 542.4 Lithium and Alloys - 539.3 Metal Plating - 538.2 Welding - 535.1 Metal Rolling - 482.2 Minerals - 444.1 Surface Water - 421 Strength of Building Materials; Mechanical Properties - 415 Metals, Plastics, Wood and Other Structural Materials - 544.1 Copper - 741.1 Light/Optics - 715.1 Electronic Equipment, non-communication - 714.2 Semiconductor Devices and Integrated Circuits - 546.2 Tin and Alloys - 714.1 Electron Tubes - 631.1.1 Liquid Dynamics - 549.1 Alkali Metals - 712.1 Semiconducting Materials
DOI:10.1016/S1001-0521(08)60171-0
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082111271867
Title:Fluorescence imaging analysis of taxol-induced ASTC-a-1 cell death with cell swelling and cytoplasmic vacuolization
Authors:Chen, Tong-Sheng (1); Sun, Lei (1); Wang, Longxiang (1); Wang, Huiying (1)
Author affiliation:(1) MOE Key Libratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Chen, T.-S.
(chentsh@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570L
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Taxol (Paclitaxel), an isolated component from the bark of the Pacific yew Taxus brevifolia, exhibits a broad spectrum of clinical activity against human cancers. Taxol can promote microtubule (MT) assembly, inhibit depolymerization, and change MT dynamics, resulting in disruption of the normal reorganization of the microtubule network required for mitosis and cell proliferation. However, the molecular mechanism of taxol-induced cell death is still unclear. In this report, CCK-8 was used to assay the inhibition of taxol on the human lung adenocarcinoma (ASTC-a-1) cells viability, confocal fluorescence microscope was used to monitor the morphology changes of cells with taxol treatment. We for the first time describe the characteristics of taxol-induced cells swelling, cytoplasmic vacuolization and cell death. Taxol induced swelling, cytoplasmatic vacuolization and cell death without cell shrinkage and membrane rupture. These features differ from those of apoptosis and resemble the paraptosis, a novel nonapoptotic PCD.
Number of references:26
Main heading:Cell death
Controlled terms:Cell proliferation - Confocal microscopy - Depolymerization - Fluorescence - Fluorescence microscopy - Image analysis - Swelling - Tumors
Uncontrolled terms:Laser confocal fluorescence microscopes - Paraptosis - Taxol - Vacuolization
Classification code:951 Materials Science - 941.3 Optical Instruments - 931.4 Quantum Theory; Quantum Mechanics - 815.2 Polymerization - 744.9 Laser Applications - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 461.9 Biology - 461.2 Biological Materials and Tissue Engineering
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1117/12.761485
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081111143942
Title:Fossil gastropods from the MGS3 stratigraphic segment in the Salawusu River Valley and their climatic and environmental implications
Authors:Li, Bao Sheng (1); Chen, De Niu (3); Zhang, David Dian (4); Wen, Xiao Hao (1); Qiu, Shi Fan (1); Ou, Xian Jiao (1); Du, Shu Huan (1); Niu, Dong Feng (1); Yang, Yi (1); Ye, Jian Ping (1); Guo, Yun Hai (1)
Author affiliation:(1) School of Geography, South China Normal University, Guangzhou 510631, China; (2) State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi-an 710075, China; (3) Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China; (4) Department of Geography and Geology, University of Hong Kong, Hong Kong, Hong Kong
Corresponding author:Chen, D.N.
(chendn1939@)
Source title:Science in China, Series D: Earth Sciences
Abbreviated source title:Sci. China Ser. D Earth Sci.
Volume:51
Issue:3
Issue date:March 2008
Publication year:2008
Pages:339-348
Language:English
ISSN:10069313
E-ISSN:18622801
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:Contemporaneous with MIS3, the MGS3 segment of the Milanggouwan stratigraphic section in the Salawusu River Valley, Mu Us Desert, China contains fossil gastropods (terrestrial and freshwater snails) in strata 33LS, 35LS, 37FL and 39LS. Examination of these fossils revealed 11 species belonging to 8 families and 10 genera. They can be classified as: (1) assemblage of Gyraulus and Galba mainly consisting of Gyraulus convexiusculus, Gyraulus sibiricus, Galba pervia and Galba superegra Gredler, etc. (2) assemblage of Vallonia mainly consisting of terrestrial snails, such as Vallonia patens, Pupilla muscorum and Discus paupe, etc. Based on the dating results, and the living habits, living conditions, and geographic distribution of their extant species, we suggest that: the ages of 33LS, 35LS, 37FL, and 39LS are 26000, 29000, 33000 and 38000 a, respectively, corresponding well to the interstadial period in GRIP 4, 5, 6 and 10 in terms of chronology and climatic characters; 33LS, 35LS and 39LS represent very warm-humid periods, while 37FL represents a less warm-humid period; the four periods of climatic fluctuations recorded in MGS3 were related to the strong impact of the summer monsoon in East Asia in Mu Us Desert of China during the interstadial of MIS3 on a global climatic background. © Science in China Press 2008.
Number of references:45
Main heading:Stratigraphy
Controlled terms:Climatology - Ecosystems - Geochronology - Rivers
Uncontrolled terms:Climatic environment - Fossil gastropods - Geographic distribution
Classification code:443.1 Atmospheric Properties - 444.1 Surface Water - 454.3 Ecology and Ecosystems - 481.1 Geology - 481.3 Geophysics
Treatment:Theoretical (THR)
DOI:10.1007/s11430-008-0015-6
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911597518
Title:Discrete time Geo / G / 1 queue with Bernoulli gated service simulation system
Authors:Xu, Qingzhen (1); Ma, Zhanyou (2)
Author affiliation:(1) School of Computer Science, South China Normal University, Guangzhou, 510631, China; (2) College of Science, Yanshan University, Qinhuangdao, 066004, China
Corresponding author:Xu, Q.
(xqz1997@)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:204
Issue:1
Issue date:October 1, 2008
Publication year:2008
Pages:37-44
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:This paper presents a new algorithm to simulate multiple vacations Geo / G / 1 queue with Bernoulli gate service model. Firstly, we deduce the probability generating function (P.G.F.) of stationary queue length by using regeneration cycle method, and get the (P.G.F.) of stationary waiting time according to the service order FCFS. Then we get the (P.G.F.) of mean service cycle and the probability of various system state. The simulation results demonstrate that the new algorithm is relatively efficient and realized in real system. © 2008 Elsevier Inc. All rights reserved.
Number of references:6
Main heading:Queueing theory
Controlled terms:Algorithms - Function evaluation - Probability
Uncontrolled terms:Bernoulli - Bernoulli gated service - Discrete time - Discrete time queue - Multiple vacations - New algorithm - Probability generating function - Queue lengths - Real systems - Regeneration cycle - Regeneration cycles - Service cycle - Service modeling - Simulation results - Simulation system - System states - Waiting-time
Classification code:723 Computer Software, Data Handling and Applications - 921.6 Numerical Methods - 922.1 Probability Theory
DOI:10.1016/j.amc.2008.06.001
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084711719882
Title:Nonlinear oscillation of second order differential equations with state-dependent delays
Authors:Xu, Zhiting (1)
Author affiliation:(1) School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xu, Z.
(xuzhit@)
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:206
Issue:1
Issue date:December 1, 2008
Publication year:2008
Pages:198-204
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract:Oscillation and nonoscillation criteria are presented for the second order nonlinear differential equation with state-dependent delay(r (t) | y′ (t) |p - 1 y′ (t))′ + f (t, y (t), y (Δ (t, y (t)))) = 0in the case ∫∞ r- 1 / p (s) d s < ∞. The results established here can be conjugated with the theorems given by Bainov et al. [D.D. Bainov, N.T. Markova, P.S. Simeonov, Asymptotic behavior of the nonoscillatory solutions of differential equations of second order with delay depending on the unknown function, J. Comput. Appl. Math. 91 (1998) 87-96] and Luo [J. Luo, Asymptotic behavior of the solutions of second order quasilinear differential equations with delay depending on the unknown function, J. Comput. Appl. Math. 185 (2006) 133-143]. © 2008 Elsevier Inc. All rights reserved.
Number of references:11
Main heading:Equations of state
Controlled terms:Asymptotic analysis - Differential equations - Nonlinear equations - Probability density function
Uncontrolled terms:Nonlinear - Nonoscillation - Oscillation - Second order differential equations - State-dependent delays
Classification code:921 Mathematics - 921.1 Algebra - 921.2 Calculus - 922.1 Probability Theory - 931.2 Physical Properties of Gases, Liquids and Solids
DOI:10.1016/j.amc.2008.09.004
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080611082388
Title:Electrochemical properties of ferrocene adsorbed on multi-walled carbon nanotubes electrode
Authors:Zheng, Dahao (1); Li, Hong (1); Lu, Baoyi (1); Xu, Zhenghe (1); Chen, Hongyu (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China
Corresponding author:Li, H.
(lihong@scnu.)
Source title:Thin Solid Films
Abbreviated source title:Thin Solid Films
Volume:516
Issue:8
Issue date:Febrary 29, 2008
Publication year:2008
Pages:2151-2157
Language:English
ISSN:00406090
CODEN:THSFAP
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The adsorbed process of ferrocene on a glassy carbon (GC) electrode modified by multi-walled carbon nanotubes (MWNTs) and electrochemical properties of the adsorbed layers are investigated. It is found that the redox process of ferrocene in solution is controlled by diffusion and surface electrochemical steps on the MWNT/GC electrode in contrast to the diffusion-controlled process of ferrocene on the GC electrode. The adsorbed ferrocene exhibits a pair of well-defined redox waves in the potential range from - 0.2 V to 0.6 V. Interestingly, two pairs of obvious redox waves for the adsorbed ferrocene are observed at the switching potential over 0.8 V and the peak current values of redox waves in more positive potential increase with the enlarging switching potential. The electrochemical reaction model of ferrocene adsorbed on the MWNT/GC electrode is proposed. © 2007 Elsevier B.V. All rights reserved.
Number of references:37
Main heading:Electrodes
Controlled terms:Adsorption - Electrochemical properties - Mathematical models - Multiwalled carbon nanotubes (MWCN) - Reaction kinetics - Switching - Voltammetry
Uncontrolled terms:Adsorbed layers - Ferrocenes
Classification code:921 Mathematics - 802.3 Chemical Operations - 802.2 Chemical Reactions - 933.1 Crystalline Solids - 801.4.1 Electrochemistry - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 704.1 Electric Components - 761 Nanotechnology
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.tsf.2007.09.018
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911243704
Title:Development and application of a capillary electrophoresis-electrochemiluminescent method for the analysis of enrofloxacin and its metabolite ciprofloxacin in milk
Authors:Zhou, Xiaoming (1); Xing, Da (1); Zhu, Debin (1); Tang, Yabing (1); Jia, Li (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Talanta
Abbreviated source title:Talanta
Volume:75
Issue:5
Issue date:June 15, 2008
Publication year:2008
Pages:1300-1306
Language:English
ISSN:00399140
CODEN:TLNTA2
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Enrofloxacin (ENR) is a fluoroquinolone developed exclusively for the use in veterinary practice for the treatment of respiratory and gastrointestinal infections, and ciprofloxacin (CIP) is its main active metabolite. Their contents are regulated by the EU Council Regulation no. 2377/90 in animal edible tissues. We developed a sensitive and rapid method for the determination of ENR and CIP by capillary electrophoresis (CE) with electrochemiluminescence (ECL) detection. The method is based on the detection of aliphatic tertiary or secondary amino moieties in ENR and CIP with end-column tris(2,2-bipyridyl)ruthenium(II) electrochemiluminescence. Parameters that affect separation and detection were optimized. Under the optimized conditions, the calibration functions were linear in the range of 0.03-1 μg ml-1 for ENR and 0.05-1.2 μg ml-1 for CIP. The detection limits of ENR and CIR were 10 ng ml-1 and 15 ng ml-1, respectively, based on the signal-to-noise ratio of 3. The relative standard derivations of the peak height and the migration time for ENR and CIP were less than 4.13%. The developed method was successfully applied to determine ENR and CIP in milk with a solid-phase extraction procedure. © 2008 Elsevier B.V. All rights reserved.
Number of references:45
Main heading:Ketones
Controlled terms:Capillary electrophoresis - Chemiluminescence - Dairy products - Electroluminescence
Uncontrolled terms:Ciprofloxacin - Electrochemiluminescence - Enrofloxacin
Classification code:804.1 Organic Compounds - 802.2 Chemical Reactions - 801.4.1 Electrochemistry - 822.3 Food Products - 801.3 Colloid Chemistry - 741 Light, Optics and Optical Devices - 701.1 Electricity: Basic Concepts and Phenomena - 741.1 Light/Optics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.talanta.2008.01.040
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081711223870
Title:Effects of structural periodicity on localization length in one-dimensional periodic-on-average disordered systems
Authors:Han, Peng (1); Zheng, Chujun (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, 510006, Guangzhou, Guangdong, China
Corresponding author:Han, P.
(hanp@scnu.)
Source title:Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Abbreviated source title:Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
Volume:77
Issue:4
Issue date:April 15, 2008
Publication year:2008
Article number:041111
Language:English
ISSN:15393755
E-ISSN:15502376
CODEN:PLEEE8
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We investigate the effects of structural periodicity on wave localization in one-dimensional periodic-on-average disordered systems and derive two relations from the properties of the spectral periodicity and symmetry of the underlying periodic systems. These two relations predict equal localization lengths between disordered systems with different randomness. Comparisons with numerically simulated results show good agreement. These relations are used to explain some properties of the frequency dependence of the localization length, such as oscillation, asymmetry, etc. © 2008 The American Physical Society.
Number of references:24
Main heading:Statistical methods
Controlled terms:Numerical methods - One dimensional - Random processes - Spectrum analysis
Uncontrolled terms:Frequency dependence - Localization length
Classification code:921 Mathematics - 921.6 Numerical Methods - 922.1 Probability Theory - 922.2 Mathematical Statistics
Treatment:Theoretical (THR)
DOI:10.1103/PhysRevE.77.041111
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258626
Title:Calpain mediates AIF-regulated caspase-independent pathway in cisplatin-induced apoptosis
Authors:Liu, Lei (1); Xing, Da (1); Chen, Wei R. (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Biomedical Engineering Program, College of Mathematics and Science, University of Central Oklahoma, Edmond, OK 73034, United States
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6826
Monograph title:Optics in Health Care and Biomedical Optics III
Issue date:2008
Publication year:2008
Article number:68261R
Language:English
ISSN:16057422
ISBN-13:9780819470010
Document type:Conference article (CA)
Conference name:Optics in Health Care and Biomedical Optics III
Conference date:November 12,2007 - November 15,2007
Conference location:Beijing, China
Conference code:71992
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Mitochondrial apoptosis inducing factor (AIF) on activation can translocate to the nucleus and induce cell death via caspase-independent pathway in cisplatin-induced apoptosis. Yet the precise signal transduction pathway(s) which regulates AIF-induced apoptotic pathway still remains poorly understood. In this study, we investigated the molecular mechanism of AIF release and redistribution in cisplatin-induced apoptosis in living ASTC-a-1 cells, as assessed by real-time anlysis. Herein, We report that during cisplatin-induced apoptosis, calpain activation, as measured in intact cells by a fluorescent substrates, is an early event, taking place well before AIF release and caspase-3 activation. Confocal imaging of the cells transfected with AIF-GFP demonstrated that AIF release occurred about 9 h after cisplatin treatment. The event proceeded progressively over time, coinciding with a nuclear translocation and lasting for more than 2 hours. AIF release and redistribution were effectively inhibited in samples co-treated with calpeptin and PD150606, two selective calpain inhibitors. Therefore, our results clearly show the kinetics of AIF release and redistribution in cisplatin-induced apoptosis in living ASTC-a-1 cells, and calpain played a crucial role in these events.
Number of references:21
Main heading:Mitochondria
Controlled terms:Cell death - Molecular mechanics - Real time control - Signal transduction
Uncontrolled terms:Calpain - Cisplatin - Real-time single-cell analysis
Classification code:461.2 Biological Materials and Tissue Engineering - 461.9 Biology - 731 Automatic Control Principles and Applications - 931.1 Mechanics - 931.3 Atomic and Molecular Physics
Treatment:Experimental (EXP)
DOI:10.1117/12.760234
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084111631273
Title:On an upper bound of the spectral radius of graphs
Authors:Liu, Bolian (0)
Corresponding author:Liu, B.
(liubl@scnu.)
Corr. author affiliation:Department of Mathematics, South China Normal University, Guangzhou, 510631, China
Source title:Discrete Mathematics
Abbreviated source title:Discrete Math
Volume:308
Issue:23
Issue date:Dec 6 2008
Publication year:2008
Pages:5317-5324
Language:English
ISSN:0012365X
CODEN:DSMHA4
Document type:Journal article (JA)
Publisher:Elsevier, Amsterdam, 1000 AE, Netherlands
Abstract:We give some upper bounds for the spectral radius of bipartite graph and graph, which improve the result in Hong's Paper [Y. Hong, J.-L. Shu, K. Fang, A sharp upper bound of the spectral radius of graphs, J. Combin. Theory Ser. B 81 (2001) 177-183]. © 2007 Elsevier B.V. All rights reserved.
Number of references:9
DOI:10.1016/j.disc.2007.09.049
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082411313491
Title:Study on quantum cryptography using orbital angular momentum states of photons
Authors:Su, Zhi-Kun (0); Wang, Fa-Qiang (0); Lu, Yi-Qun (0); Jin, Rui-Bo (0); Liang, Rui-Sheng (0); Liu, Song-Hao (0)
Corresponding author:Su, Z.-K.
Corr. author affiliation:Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Volume:57
Issue:5
Issue date:May 2008
Publication year:2008
Pages:3016-3021
Language:Chinese
ISSN:10003290
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, 100085, China
Abstract:We present a simple quantum cryptographic scheme that encodes information in two orthogonal orbital angular momentum states. The states used in this scheme are invariant under rotations of the propagation direction, making this implementation independent of the alignment between the reference frames of Alice and Bob. Besides, since the two orbital angular momentum states are orthogonal, 100% use of the photons is attained, which increases the key generation rate of the protocol.
Number of references:12
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080711098776
Title:Fabrication of novel luminor Y2O3:Eu 3+@SiO2@YVO4:Eu3+ with core/shell heteronanostructure
Authors:Chang, Menglei (1); Tie, Shaolong (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Tie, S.
(tiesl@scnu.)
Source title:Nanotechnology
Abbreviated source title:Nanotechnology
Volume:19
Issue:7
Issue date:02/20/2008
Publication year:2008
Article number:075711
Language:English
ISSN:09574484
E-ISSN:13616528
CODEN:NNOTER
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:A novel polychromic phosphor with core-shell heteronanostructure has been prepared to improve the chromatic index of phosphors. As for the first example, Y2O3:Eu3+@SiO2@YVO 4:Eu3+, its synthetic route, structure and optical properties are presented in this paper. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HR-TEM), energy-dispersive x-ray spectra (EDS) and photoluminescence (PL) were all employed to characterize the composite core-shell phosphors. The XRD, FE-SEM and HR-TEM results indicate that the SiO2 and YVO 4:Eu3+ layers have been successfully coated on Y 2O3:Eu3+ nanoparticles and SiO2 layer, respectively: these layers were further verified by the EDS. The PL showed that the red-emitting phosphor Y2O3:Eu 3+@SiO2@YVO4:Eu3+ possessed the independent luminescent properties of both the core Y2O 3:Eu3+ and the shell YVO4:Eu3+. The emissions were dominated by 5D0 &rarr 7F 1 or 5D0 &rarr 7F2 transitions of Eu3+ when excited with different wavelengths. Since this broad-band response to excitation in the range of 225-340 nm gave more red/dark red emissions found at 612, 616 and 620 nm, the novel phosphor Y 2O3:Eu3+@SiO2@YVO 4:Eu3+ could have potential biological labeling applications with wide flexibility. © IOP Publishing Ltd.
Number of references:36
Main heading:Yttrium compounds
Controlled terms:Energy dispersive X ray analysis - Fabrication - Field emission - High resolution transmission electron microscopy - Phosphors - Photoluminescence - Scanning electron microscopy - X ray diffraction
Uncontrolled terms:Novel luminor - Polychromic phosphor
Classification code:931.3 Atomic and Molecular Physics - 913.4 Manufacturing - 804.2 Inorganic Compounds - 944.8 Radiation Measurements - 801 Chemistry - 741.1 Light/Optics - 712.1 Semiconducting Materials - 741.3 Optical Devices and Systems
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1088/0957-4484/19/7/075711
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081911244582
Title:The effect of baseline methods on the measurement results of nano-particles in photon correlation analysis
Authors:Liu, Gui-Qiang (1); Yang, Guan-Ling (1); Yue, Cheng-Feng (1); He, Zhen-Jiang (1); Zhou, Shu-Cang (1); Yu, Lei-Shou (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Liu, G.-Q.
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Volume:37
Issue:2
Issue date:February 2008
Publication year:2008
Pages:370-374
Language:Chinese
ISSN:10044213
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract:According to the relation between the normalized light field autocorrelation function (ACF) and the intensity ACF and the decay rate distribution function, the effect of baseline values on the effective diameter and polydispersity of nano-particles was analyzed. Two different types of baseline methods: Autoslope and extended, were discussed and the results show that the baseline values will change with the baseline methods. Experiments of three samples also testify that the larger the baseline values are, the smaller the effective diameter and the polydispersity are. The reason that the results measured by autoslope ate more stable than those measured by extended was analyzed.
Number of references:8
Main heading:Photon correlation spectroscopy
Controlled terms:Autocorrelation - Distribution functions - Light measurement - Nanoparticles - Polydispersity
Uncontrolled terms:Autocorrelation function (ACF) - Baseline methods - Baseline value - Effective diameter
Classification code:741.1 Light/Optics - 761 Nanotechnology - 922 Statistical Methods - 941.4 Optical Variables Measurements
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090811915908
Title:Phonon spectra of a Fibonacci chain
Authors:Li, Liqin (1); Yang, Xiangbo (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou, 510631, China; (2) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Yang, X.
(xbyang@scnu.)
Source title:Physica B: Condensed Matter
Abbreviated source title:Phys B Condens Matter
Volume:403
Issue:17
Issue date:August 1, 2008
Publication year:2008
Pages:2888-2896
Language:English
ISSN:09214526
CODEN:PHYBE3
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:Based on more realistic physics we study the phonon spectra of the Fibonacci chain by taking into account a nonlinear resistance. It is found that the nonlinear force should be very weak and consequently, the continuity, range and gaps of the phonon spectra would be still controlled dominantly by the relative strength of spring constants and chain length. It means that even if no additional nonlinear resistance was taken into account, the conventional results of phonon spectra are exactly correct. On the other hand, in the framework of a conventional model we investigated the relationship between the biggest gaps of phonon spectra and defects of Fibonacci-like aperiodic chains. By means of numerical calculations one can obtain quantitatively the maximum of the length of a one-dimensional aperiodic chain sensitive to boundaries. This method would be useful for the calculation of quasiperiodic and aperiodic lattices. © 2008 Elsevier B.V. All rights reserved.
Number of references:28
Main heading:Phonons
Controlled terms:Crystals - Optical devices - Quasicrystals
Uncontrolled terms:Aperiodic lattices - Conventional models - Fibonacci chains - Non-linear forces - Nonlinear resistances - Numerical calculations - One-dimensional - Phonon - Phonon spectrum - Quasi-periodic - Realistic physics - Relative strengths - Spring constants - Superlattices
Classification code:933 Solid State Physics - 931.3 Atomic and Molecular Physics - 802.3 Chemical Operations - 933.1 Crystalline Solids - 801.4 Physical Chemistry - 741.3 Optical Devices and Systems - 482.2 Minerals - 751.1 Acoustic Waves
DOI:10.1016/j.physb.2008.02.031
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090811913354
Title:Frequency response of resonance modes in heterostructures composed of singlenegative materials
Authors:Chen, Yihang (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Chen, Y.
(kallenmail@)
Source title:Journal of the Optical Society of America B: Optical Physics
Abbreviated source title:J Opt Soc Am B
Volume:25
Issue:11
Issue date:November 1, 2008
Publication year:2008
Pages:1794-1799
Language:English
ISSN:07403224
CODEN:JOBPDE
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:Multiple resonance transmission modes are generated in one-dimensional photonic heterostructure stacking with single-negative-permittivity and single-negative-permeability media layers. By varying the thickness ratio of the two kinds of stacking layers, the resonance modes are found to merge at the middle of the forbidden bandgap. Conditions for the merging of the resonance modes are obtained from the effective medium theory. The frequency, frequency interval, and number of the resonance modes can be tuned as desired by adjusting the period number or the layer thicknesses of the heterostructures. Furthermore, each resonance mode can be split into as many transmission peaks as required. Such resonance modes are insensitive to incident angle, which can be utilized to design omnidirectional and multichannel filters. © 2008 Optical Society of America.
Number of references:20
Main heading:Frequency response
Controlled terms:Crystals - Heterojunctions - Programming theory - Resonance
Uncontrolled terms:Band gaps - Effective medium theories - Frequency intervals - Heterostructure - Heterostructures - Incident angles - Multi channel filters - Multiple resonances - One-dimensional - Permeability medias - Resonance modes - Single-negative materials - Stacking layers - Thickness ratios - Transmission peaks
Classification code:933.1 Crystalline Solids - 931.1 Mechanics - 802.3 Chemical Operations - 801.4 Physical Chemistry - 751.1 Acoustic Waves - 731.1 Control Systems - 723.1 Computer Programming - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 714.2 Semiconductor Devices and Integrated Circuits - 712.1 Semiconducting Materials - 703.1 Electric Networks - 701 Electricity and Magnetism - 482.2 Minerals
DOI:10.1364/JOSAB.25.001794
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090911930319
Title:Shape-adaptive neighborhood classification method for remote sensing image
Authors:Zhang, Hongsheng (1); Li, Yan (1)
Author affiliation:(1) Computer School, South China Normal University, Guangzhou, 510631, China; (2) Spatial Information Research Center, South China Normal University, Guangzhou, 510631, China
Corresponding author:Li, Y.
(yanli@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:7285
Monograph title:International Conference on Earth Observation Data Processing and Analysis (ICEODPA)
Issue date:2008
Publication year:2008
Article number:72850F
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:International Conference on Earth Observation Data Processing and Analysis, ICEODPA
Conference date:December 28,2008 - December 30,2008
Conference location:Wuhan, China
Conference code:75387
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:High spatial resolution remote sensing images are playing an increasing important role in various applications in the world. As the fundamental work, classification of remote sensing is significant in the applications. This paper proposed a new feature extraction approach based on the shape adaptive neighborhood (SAN) for the classification of high spatial resolution remote sensing images. The heterogeneity based on the color characteristics was employed to determine the SAN of each pixel. Then all the color features, texture features and shape features were extracted from each SAN, and were fused by the feature level data fusion methods to the final feature space of the RS image. Then the features were used to do the classification work. As the experiment results shown, the total precision of the classification was 0.9187, and the kappa coefficient was 0.7950. By analyzing different maximum size of the SAN and different threshold of the heterogeneity, the best maximum size of the SAN was 11*11 for the study area and the most suitable threshold was 0.5. © 2008 SPIE.
Number of references:12
Main heading:Feature extraction
Controlled terms:Color - Data processing - Image reconstruction - Image resolution - Observatories - Remote sensing - Space optics - Textures
Uncontrolled terms:Classification - Color feature - HSI - SAN - Shape adaptive neighborhood - Shape feature - Texture feature
Classification code:933 Solid State Physics - 723.5 Computer Applications - 731.1 Control Systems - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 742 Cameras and Photography - 751.1 Acoustic Waves - 723.2 Data Processing and Image Processing - 716 Telecommunication; Radar, Radio and Television - 657 Space Physics - 656.1 Space Flight - 443 Meteorology - 402.1 Industrial and Agricultural Buildings - 716.4 Television Systems and Equipment
DOI:10.1117/12.815857
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083011402134
Title:Property and mechanism of rhodium extracted from Rh-Sn-Cl system by N-butyl isooctylamide
Authors:Li, Yaowei (1); Gu, Guobang (2)
Author affiliation:(1) South China Normal University, Guangzhou 510006, China; (2) South China University of Technology, Guangzhou 510640, China
Corresponding author:Li, Y.
(liyaowei@scnu.)
Source title:Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title:Xiyou Jinshu Cailiao Yu Gongcheng
Volume:37
Issue:6
Issue date:June 2008
Publication year:2008
Pages:1069-1073
Language:Chinese
ISSN:1002185X
CODEN:XJCGEA
Document type:Journal article (JA)
Publisher:Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014, China
Abstract:The property and mechanism of rhodium extracted from Rh-Sn-Cl system by using N-butyl isooctylamide (BiOA) with stannous chloride as activator are investigated. In the absence of Sn (II), Rh is hardly extracted from a low acidity solution. A high extractability of Rh is achieved using the HCl solution of 3 mol·L-1 at CSn/CRh≥6 as the aqueous phase. When CSn/CRh=6, the extraction percentage of Rh reaches 99% with BiOA of 1.5 mol·L-1 and TBP of 0.5 mol·L-1 in octane. The BiOA and TBP have a synergistic extraction effect for Rh in this system. The reaction of extracting Rh is acid ion-association extraction.
Number of references:11
Main heading:Rhodium
Controlled terms:Extraction - Mechanisms - Tin - Tin alloys
Uncontrolled terms:Extractability - HCl solutions - Stannous chloride
Classification code:546.2 Tin and Alloys - 547.1 Precious Metals - 601.3 Mechanisms - 802.3 Chemical Operations
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082411317647
Title:Structural and optical properties of ZnO thin films on (111) CaF2 substrates grown by magnetron sputtering
Authors:Wang, Yinzhen (1); Chu, Benli (1)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631, China
Corresponding author:Wang, Y.
(agwyz@.cn)
Source title:Superlattices and Microstructures
Abbreviated source title:Superlattices Microstruct
Volume:44
Issue:1
Issue date:July 2008
Publication year:2008
Pages:54-61
Language:English
ISSN:07496036
E-ISSN:10963677
CODEN:SUMIEK
Document type:Journal article (JA)
Publisher:Academic Press, 24-28 Oval Road, London, NW1 7DX, United Kingdom
Abstract:ZnO thin films were grown on (111) CaF2 substrates by magnetron sputtering at room temperature. Structural and optical properties of the ZnO thin films were studied. XRD analysis showed that the ZnO thin films had the (002) preferential orientation. The transmittance of ZnO thin films was over 80% in the visible range. The optical band gap of the ZnO thin films was 3.26 eV. The optical constants (n, k) of the ZnO thin films in the wavelength range 300-1000 nm were obtained by infrared spectroscopic ellipsometry measurement. PL spectra of ZnO thin films showed strong UV near-band-edge emission peak at 376.5 nm and weak visible red emission at 643.49 nm using He-Cd laser as the light source, using a synchrotron radiation light source PL spectra showed three emission peak at 320 nm, 410 nm and 542 nm respectively. © 2008 Elsevier Ltd. All rights reserved.
Number of references:27
Main heading:Thin films
Controlled terms:Calcium compounds - Magnetron sputtering - Optical properties - X ray diffraction analysis - Zinc oxide
Uncontrolled terms:Emission peak - ZnO thin films
Classification code:539.3 Metal Plating - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801 Chemistry - 804.2 Inorganic Compounds
Treatment:Experimental (EXP)
DOI:10.1016/j.spmi.2008.01.024
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082311291641
Title:The study on the application of value at risk in inventory control
Authors:Tu, Xin-Shu (1); Li, Wei (2)
Author affiliation:(1) School of Economics and Management, South China Normal University, Guangzhou, 510631, China; (2) School of Business, Xiangtan University, Xiangtan, 411105, China
Corresponding author:Tu, X.-S.
(tuxs@)
Source title:2007 IEEE International Conference on Control and Automation, ICCA
Abbreviated source title:IEEE Int. Conf. Control Autom. ICCA
Monograph title:2007 IEEE International Conference on Control and Automation, ICCA
Issue date:2008
Publication year:2008
Pages:2740-2743
Article number:4376860
Language:English
ISBN-10:1424408180
ISBN-13:9781424408184
Document type:Conference article (CA)
Conference name:2007 IEEE International Conference on Control and Automation, ICCA
Conference date:May 30,2007 - June 01,2007
Conference location:Guangzhou, China
Conference code:72048
Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States
Abstract:This paper explores the possibility to use value at risk (VaR) in the context of inventory management. VaR is being used more and more in financial management as a natural measure of the risk. In the framework of inventory management it can work as well. We first provide a decision analysis justification for the VaR approach based disappointment decision making arguments. Then we provide applications to inventory management based on VaR risk exposure. Both single period and multiperiod inventory models are considered. Although the mathematical problems arising from an application of the VaR approach, tuned to current practice in financial risk management, are difficult to solve analytically, solutions can be found by application of standard computational and simulation techniques. A number of cases are solved and formulated to demonstrate the papers applicability. © 2007 IEEE.
Number of references:12
Main heading:Inventory control
Controlled terms:Decision making - Financial data processing - Industrial management - Mathematical morphology - Risk analysis
Uncontrolled terms:Financial risk management - Inventory management - Multi-period risk decision - Value at risk (VaR)
Classification code:723.2 Data Processing and Image Processing - 911.1 Cost Accounting - 911.3 Inventory Control - 912.2 Management - 922 Statistical Methods
Treatment:Theoretical (THR)
DOI:10.1109/ICCA.2007.4376860
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082711345373
Title:Elegant Hermite-Laguerre-Gaussian beams
Authors:Deng, Dongmei (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:33
Issue:11
Issue date:June 1, 2008
Publication year:2008
Pages:1225-1227
Language:English
ISSN:01469592
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:A novel family of paraxial laser beams called elegant Hermite-Laguerre- Gaussian beams (EHLGBs) are presented. The EHLGBs, a unity of elegant Hermite-Gaussian beams (EHGBs) and elegant Laguerre-Gaussian beams (ELGBs), constitute the exact and continuous transition modes between EHGBs and ELGBs when an additional parameter continuously changes. The virtual source for generation of the EHLGBs is identified. From the spectral representation of the elegant Hermite-Lauguerre-Gaussian waves, we derive the first three orders of nonparaxial corrections for the corresponding paraxial EHLGBs. © 2008 Optical Society of America.
Number of references:22
Main heading:Magnetism
Controlled terms:Electromagnetic field theory - Electromagnetic fields - Electromagnetism - Gaussian beams - Gaussian distribution - Gaussian noise (electronic) - Laser beams - Pulsed laser deposition - Trellis codes
Uncontrolled terms:(001) parameter - Continuous transitions - Elegant Hermite Gaussian (EHG) beams - Gaussian waves - Hermite Laguerre Gaussian (HLG) beams - Laguerre-Gaussian (LG) beams - Nonparaxial - Optical society of America (OSA) - Paraxial - Spectral representations
Classification code:744.9 Laser Applications - 744.8 Laser Beam Interactions - 723.2 Data Processing and Image Processing - 922.1 Probability Theory - 711 Electromagnetic Waves - 701.1 Electricity: Basic Concepts and Phenomena - 701 Electricity and Magnetism - 701.2 Magnetism: Basic Concepts and Phenomena
DOI:10.1364/OL.33.001225
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411180792
Title:Realization of universal quantum cloning with superconducting quantum-interference device qubits in a cavity
Authors:Yang, Jian (1); Yu, Ya-Fei (1); Zhang, Zhi-Ming (1); Liu, Song-Hao (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China; (2) Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore
Corresponding author:Yang, J.
Source title:Physical Review A - Atomic, Molecular, and Optical Physics
Abbreviated source title:Phys Rev A
Volume:77
Issue:3
Issue date:March 18, 2008
Publication year:2008
Article number:034302
Language:English
ISSN:10502947
E-ISSN:10941622
CODEN:PLRAAN
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We propose a scheme to realize a 1&rarr2 universal quantum cloning machine with superconducting quantum interference device qubits, embedded in a high- Q cavity. The controlled-NOT operations are derived to present our scheme, and the two-photon Raman resonance processes are used to increase the operation rate. Compared with previous works, our scheme has advantages in the experimental realization and further utilization. © 2008 The American Physical Society.
Number of references:20
Main heading:SQUIDs
Controlled terms:Cavity resonators - Electron resonance - Quantum optics - Quantum theory - Raman scattering
Uncontrolled terms:Controlled NOT operations - Quantum cloning machines - Qubits - Universal quantum cloning
Classification code:704.2 Electric Equipment - 714.1 Electron Tubes - 741.1 Light/Optics - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1103/PhysRevA.77.034302
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090411867734
Title:A three-dimensional pyrazine-2,5-dicarboxyl-ate CdII coordination framework with new (4,4,4)-connected three-nodal topology
Authors:Yang, Ping (1); Wu, Jian-Zhong (1)
Author affiliation:(1) School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Corresponding author:Wu, J.-Z.
(wujzh@scnu.)
Source title:Acta Crystallographica Section C: Crystal Structure Communications
Abbreviated source title:Acta Crystallogr Sect C Cryst Struct Commun
Volume:65
Issue:1
Issue date:2008
Publication year:2008
Pages:m4-m6
Language:English
ISSN:01082701
E-ISSN:01082701
CODEN:ACSCEE
Document type:Journal article (JA)
Publisher:International Union of Crystallography, 5 Abbey Square, Chester, CH1 2HU, United Kingdom
Abstract:Poly[(4-pyrazine-2,5-dicarboxyl-ato)cadmium(II)], [Cd(C6H2N2O4)] n or [Cd(pzdc)] n (pzdc is the pyrazine-2,5-dicarboxyl-ate dianion), has been synthesized hydro-thermally. The asymmetric unit consists of a CdII atom and two independent halves of pzdc ligands that can be expanded via inversion through the centres of the ligands so that each ligand binds to four CdII atoms with the same binding mode using six donor atoms. The CdII centre is in a distorted octa-hedral coordination geometry with four O- and two N-atom donors from four pzdc ligands. The infinite linkage of the metal atoms and ligands forms a three-dimensional framework with a recta-ngular channel which is so narrow that there is no measurable void space in the overall structure. This coordination polymer represents the first example of (4,4,4)-connected three-nodal framework. © 2009 International Union of Crystallography.
Number of references:30
Main heading:Ligands
Controlled terms:Atomic physics - Atoms - Binding energy - Cadmium - Three dimensional
Uncontrolled terms:Asymmetric units - Binding modes - Coordination frameworks - Coordination geometries - Coordination polymers - Donor atoms - Ligand binds - Metal atoms - Pyrazine - Void spaces
Classification code:549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 723.5 Computer Applications - 801.2 Biochemistry - 801.4 Physical Chemistry - 902.1 Engineering Graphics - 931.3 Atomic and Molecular Physics
DOI:10.1107/S0108270108040080
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090111826445
Title:Realizing and detecting the quantum hall effect without landau levels by using ultracold atoms
Authors:Shao, L.B. (1); Zhu, Shi-Liang (1); Sheng, L. (2); Xing, D.Y. (2); Wang, Z.D. (3)
Author affiliation:(1) Institute for Condensed Matter Physics, Department of Physics, South China Normal University, Guangzhou, China; (2) National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing, China; (3) Department of Physics, Center of Theoretical and Computational Physics, University of Hong Kong, Pokfulam Road, Hong Kong, Hong Kong
Corresponding author:Shao, L. B.
Source title:Physical Review Letters
Abbreviated source title:Phys Rev Lett
Volume:101
Issue:24
Issue date:December 8, 2008
Publication year:2008
Article number:246810
Language:English
ISSN:00319007
E-ISSN:10797114
CODEN:PRLTAO
Document type:Journal article (JA)
Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States
Abstract:We design an ingenious scheme to realize Haldane's quantum Hall model without Landau levels by using ultracold atoms trapped in an optical lattice. Three standing-wave laser beams are used to construct a wanted honeycomb lattice, where different on site energies in two sublattices required in the model can be implemented through tuning the phase of one laser beam. The staggered magnetic field is generated from the light-induced Berry phase. Moreover, we establish a relation between the Hall conductivity and the atomic density, enabling us to detect the Chern number with the typical density-profile-measurement technique. © 2008 The American Physical Society.
Number of references:33
Main heading:Magnetic field effects
Controlled terms:Atomic physics - Atoms - Galvanomagnetic effects - Hall effect - Honeycomb structures - Laser beams - Magnetic fields
Uncontrolled terms:Atomic densities - Chern numbers - Haldane - Hall conductivities - Honeycomb lattices - Landau levels - Measurement techniques - On sites - Optical lattices - Quantum hall effects - Staggered magnetic fields - Ultracold atoms
Classification code:408.2 Structural Members and Shapes - 701.1 Electricity: Basic Concepts and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 744.8 Laser Beam Interactions - 931.3 Atomic and Molecular Physics
DOI:10.1103/PhysRevLett.101.246810
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20085211808353
Title:Tooth-shaped plasmonic waveguide filters with nanometeric sizes
Authors:Lin, Xian-Shi (1); Huang, Xu-Guang (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510006, China
Corresponding author:Huang, X.-G.
(huangxg@scnu.)
Source title:Optics Letters
Abbreviated source title:Opt. Lett.
Volume:33
Issue:23
Issue date:December 1, 2008
Publication year:2008
Pages:2874-2876
Language:English
ISSN:01469592
CODEN:OPLEDP
Document type:Journal article (JA)
Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States
Abstract:A novel nanometeric plasmonic filter in a tooth-shaped metal-insulator- metal waveguide is proposed and demonstrated numerically. An analytic model based on the scattering matrix method is given. The result reveals that the single tooth-shaped filter has a wavelength-filtering characteristic and an ultracompact size in the length of a few hundred nanometers, compared to gratinglike surface plasmon polariton (SPP) filters. Both analytic and simulation results show that the wavelength of the trough of the transmission has linear and nonlinear relationships with the tooth depth and the tooth width, respectively. The waveguide filter could be utilized to develop ultracompact photonic filters for high integration. © 2008 Optical Society of America.
Number of references:23
Main heading:Dentistry
Controlled terms:Circular waveguides - Metal insulator boundaries - Surface plasmon resonance - Waveguides
Uncontrolled terms:Analytic models - Filtering characteristics - Metal waveguides - Nonlinear relationships - Photonic filters - Plasmonic waveguides - Scattering matrix methods - Simulation results - Single teeth - Surface plasmon polariton - Waveguide filters
Classification code:741.1 Light/Optics - 714.3 Waveguides - 714.2 Semiconductor Devices and Integrated Circuits - 931.3 Atomic and Molecular Physics - 711 Electromagnetic Waves - 461.6 Medicine and Pharmacology - 461.1 Biomedical Engineering - 462.3 Dental Equipment and Supplies
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111419782
Title:The effect of electrical properties for InGaN and InN by high-energy particle irradiation
Authors:Dong, Shao-Guang (1); Fan, Guang-Han (1)
Author affiliation:(1) Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, 510631, China; (2) Department of Optoelectronic and Physics, Foshan University, Foshan, 528000, China
Corresponding author:Dong, S.-G.
(dongshaoguang1970@)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6841
Monograph title:Solid State Lighting and Solar Energy Technologies
Issue date:2008
Publication year:2008
Article number:68411H
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470164
Document type:Conference article (CA)
Conference name:Solid State Lighting and Solar Energy Technologies
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72754
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:To elucidate the role of native defects in determining the electrical properties of In1-xGaxN and InN, High-energy particle irradiation has been used to intentionally introduce point defects into In xGa1-xN alloys and to study the dependence of the electron mobility on electron concentrations varying from mid-1018 to mid-1020 cm-3 for InN. We find that high-energy particle irradiation produces donor-like defects in InxGa 1-x(x>0.34), while acceptor-like defects form in Ga-rich In xGa1-xN (x<0.34). We also show that the electron mobility is limited by scattering from the ionized defects created in InN by high-energy particle irradiation, resulting in a strong correlation between mobility and electron concentration. A sufficiently high irradiation dose pins the Fermi level at the Fermi stabilization energy (EFS), as predicted by the Amphoteric Defect Model. Furthermore, we suggest that the high-energy particle irradiation-induced defects may be triply charged donors.
Number of references:17
Main heading:Electron irradiation
Controlled terms:Defects - Electric properties - Electron mobility - Electrons - Fermions - Gallium - Gallium alloys - High energy physics - Irradiation - Lighting - Metallic compounds - Particle accelerators - Point defects - Radiation - Renewable energy resources - Solar energy - Solar radiation - Stabilization
Uncontrolled terms:Fermi stabilization energy - InGaN - InN - Mobility - Native defects
Classification code:741.1 Light/Optics - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics - 932.1.1 Particle Accelerators - 933 Solid State Physics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 951 Materials Science - 712.1 Semiconducting Materials - 423 Non Mechanical Properties and Tests of Building Materials - 525.1 Energy Resources and Renewable Energy Issues - 531.2 Metallography - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 615.2 Solar Power - 622.2 Radiation Effects - 657.1 Solar Energy and Phenomena - 701.1 Electricity: Basic Concepts and Phenomena - 707 Illuminating Engineering - 711 Electromagnetic Waves - 711.1 Electromagnetic Waves in Different Media
DOI:10.1117/12.756628
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083111419575
Title:Comment on properties of one-dimensional photonic crystals containing negative refraction materials
Authors:Hu, Changbao (1); Xu, Yiping (1); He, Huosheng (1)
Author affiliation:(1) School of Physics and Telecom Engineering, South China Normal University, GuangZhou, 510006, China
Corresponding author:Hu, C.
(huchangbao2005@)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6831
Monograph title:Nanophotonics, Nanostructure, and Nanometrology II
Issue date:2008
Publication year:2008
Article number:68310E
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470065
Document type:Conference article (CA)
Conference name:Nanophotonics, Nanostructure, and Nanometrology II
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72751
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:In this paper, by using the transfer matrix theory and the dispersion relation principle, via math tool processing numerical value simulation get the energy band, the limited field and the dispersion characteristic of one-dimensional photonic crystals with negative-index materials, we find there are two photonic band gap, the lower forbidden band which is called zero- n¯ gap remains nearly invariant under a various incident angle, while the higher one which is called Bragg gap changes ceaselessly with the increasing incident angle. Through introducing the defect we found that the defect mode inside the zero- n¯ gap remains invariant with the scaling of non-defect part. Conversely, the defect mode inside the Bragg gap shifts greatly in frequency with scaling. The studying of the dispersion relation shows that the width of the zero- n¯ gap enlarges, but the middle of each gap hardly changes, on the contrary the middle of a Bragg gap will shift noticeably while the width of the gap will change a little when the ratio of the thicknesses of the two types of layers varies and that the zero- n¯ gap that distinguishes itself from a Bragg gap in that it is invariant with scaling. The emphasis of this paper lies in analyzing the characteristic of this type of photonic crystals.
Number of references:10
Main heading:Photonic band gap
Controlled terms:Crystal atomic structure - Crystals - Defects - Gallium alloys - Materials properties - Mathematical models - Matrix algebra - Nanostructures - Photonic crystals - Photonics - Quantum theory - Transfer matrix method
Uncontrolled terms:Bragg gaps - Defect modes - Dispersion characteristics - Dispersion relations - Energy bands - Forbidden bands - Incident angles - Negative refractions - Negative-index materials - Numerical value simulations - Photonic bands - Tool processing - Transfer matrix - Two types
Classification code:761 Nanotechnology - 801.4 Physical Chemistry - 802.3 Chemical Operations - 921 Mathematics - 921.1 Algebra - 951 Materials Science - 931.2 Physical Properties of Gases, Liquids and Solids - 931.4 Quantum Theory; Quantum Mechanics - 933 Solid State Physics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 931.3 Atomic and Molecular Physics - 744 Lasers - 741.3 Optical Devices and Systems - 421 Strength of Building Materials; Mechanical Properties - 423 Non Mechanical Properties and Tests of Building Materials - 482.2 Minerals - 531.2 Metallography - 549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium - 712 Electronic and Thermionic Materials - 712.1 Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 717 Optical Communication - 741.1 Light/Optics
DOI:10.1117/12.757203
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081011136798
Title:Direct synthesis of poly(D, L-lactide-tocopherol) via melt copolycondensation and its characterization
Authors:Zhao, Hai-Jun (0); Wang, Zhao-Yang (0); Hou, Xiao-Na (0); Song, Xiu-Mei (0); Luo, Yu-Fen (0)
Corresponding author:Zhao, H.-J.
Corr. author affiliation:Department of Chemistry, South China Normal University, Guangzhou 510006, China
Source title:Xiandai Huagong/Modern Chemical Industry
Abbreviated source title:Huagong Xiandai
Volume:28
Issue:1
Issue date:January 2008
Publication year:2008
Pages:47-49
Language:Chinese
ISSN:02534320
CODEN:HTKUDJ
Document type:Journal article (JA)
Publisher:China National Chemical Information Center, Beijing, 100029, China
Abstract:Using cheap D, L-lactic acid (D, L-LA) as material, and SnO as catalyst, polymeric antioxidant poly(D, L-lactide-tocopherol) is directly synthesized via the melt copolycondensation. The effects of different feed molar ratio are discussed. The synthesized polymeric vitamin E esters are white powder, and have suitable molecular weights. Its all weight-average molecular weight can be higher than 3200 g/mol. The glass-transition temperature of copolymers can be lower than that of homopolymer poly(D, L-lactic acid) (PDLLA), and the melting temperature (Tm) is similar to that of PDLLA.
Number of references:15
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20084311655867
Title:Identification of the key toxicants in reed pulp CEH bleaching effluents
Authors:Fang, Zhan-Qiang (0); Cheng, Wen (0); Song, Zhao-Feng (0)
Corresponding author:Fang, Z.-Q.
(zhqfang@scnu.)
Corr. author affiliation:School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Source title:Zhongguo Zaozhi Xuebao/Transactions of China Pulp and Paper
Abbreviated source title:Zhongguo Zaozh Xuebao
Volume:23
Issue:3
Issue date:September 2008
Publication year:2008
Pages:84-89
Language:Chinese
ISSN:10006842
Document type:Journal article (JA)
Publisher:China Technical Association of Paper Industry, Beijing, 100020, China
Abstract:Pulp bleaching effluents are of great concern to environment, especially chlorine bleaching effluents because of the formation of toxic chlorinated organic compounds. Reed pulp CEH bleaching effluents were selected as studied objects and key toxicants identification was studied in this paper. The results showed that 1, 3, 3-trichloro-4-metho-2-penketone, 3, 4, 5-trichloroguaiacol, 3, 4, 6-trichloroguaiacol, 2, 4, 5-trichlorophenol, 2-chloro naphthalene, 2, 4, 6-trichlorophenol, 2, 6-dichlorophenol and 2, 5-dichlorophenol are the key toxicants in C stage effluent. 3-chlorophenol, 2, 4-dichlorophenol, 2, 5-dichlorophenol, 2, 4, 6-trichlorophenol, 3, 4-dichloroguaiacol, 4, 6-dichloroguaiacol, 4, 5-dichloroguaiacol, 3, 4, 6-trichloroguaiacol and tetrachloroguaiacol are the key toxicants in E stage effluent. Pentachloro-cyclopropane is the key toxicant in H stage effluent in reed pulp CEH bleaching process.
Number of references:19
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081811226766
Title:Analytic solutions for degenerate Raman-coupled model
Authors:Zhang, Zhi-Ming (1); Yu, Ya-Fei (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, School of Information and Photoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Corresponding author:Zhang, Z.-M.
(zmzhang@scnu.)
Source title:Chinese Physics B
Abbreviated source title:Chin. Phys.
Volume:17
Issue:4
Issue date:April 1, 2008
Publication year:2008
Pages:1242-1247
Language:English
ISSN:16741056
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:The Raman-coupled interaction between an atom and a single mode of a cavity field is studied. For the cases in which a light field is initially in a coherent state and in a thermal state separately, we have derived the analytic expressions for the time evolutions of atomic population difference W, modulus B of the Bloch vector, and entropy E. We find that the time evolutions of these quantities are periodic with a period of π. The maxima of W and B appear at the scaled interaction time points τ = kπ(k = 0, 1, 2,...). At these time points, E = 0, which shows that the atom and the field are not entangled. Between these time points, E ≠ 0, which means that the atom and the field are entangled. When the field is initially in a coherent state, near the maxima, the envelope of W is a Gaussian function with a variance of 1/ (4 ) ( is the mean number of photons). Under the envelope, W oscillates at a frequency of /π. When the field is initially in a thermal state, near the maxima, W is a Lorentz function with a width of 1/. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:15
Main heading:Molecular dynamics
Controlled terms:Entropy - Mathematical models - Periodic structures
Uncontrolled terms:Atomic dynamics - Entanglement - Raman-coupled model
Classification code:641.1 Thermodynamics - 801.4 Physical Chemistry - 921 Mathematics - 931.3 Atomic and Molecular Physics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1088/1674-1056/17/4/016
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081411182983
Title:Propagation of Laguerre-Gaussian beams in nonlocal nonlinear media
Authors:Deng, Dongmei (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Corresponding author:Guo, Q.
(guoq@scnu.)
Source title:Journal of Optics A: Pure and Applied Optics
Abbreviated source title:J Opt A Pure Appl Opt
Volume:10
Issue:3
Issue date:March 1, 2008
Publication year:2008
Article number:035101
Language:English
ISSN:14644258
E-ISSN:17413567
CODEN:JOAOF8
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom
Abstract:In this paper, the exact analytical Laguerre-Gaussian (LG) solutions are derived in strongly nonlocal nonlinear media in a cylindrical coordinate system. The comparisons of analytical solutions with numerical simulations of the nonlocal nonlinear Schro¨dinger equation (NNLSE) show that the analytical LG solutions are in good agreement with the numerical simulations in the case of strong nonlocality. The Gaussian breather and the Gaussian soliton, ring vortex breathers and solitons, necklace-type breathers and solitons can be obtained by treating them as special cases of LG breathers and LG solitons. The area of the dark region across the LG vortex ring breathers and vortex ring solitons can easily be controlled by proper choice of the beam parameters. © IOP Publishing Ltd.
Number of references:54
Main heading:Gaussian beams
Controlled terms:Computer simulation - Problem solving - Schrodinger equation - Solitons
Uncontrolled terms:Laguerre-gaussian beams - Nonlocal nonlinear media
Classification code:711 Electromagnetic Waves - 723.5 Computer Applications - 921 Mathematics - 921.1 Algebra - 931.4 Quantum Theory; Quantum Mechanics
Treatment:Theoretical (THR)
DOI:10.1088/1464-4258/10/3/035101
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258667
Title:PDT-apoptotic tumor cells induce macrophage immune response
Authors:Zhou, Fei-Fan (1); Xing, Da (1); Chen, Wei R. (1)
Author affiliation:(1) MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China; (2) Biomedical Engineering Program, College of Mathematics and Science, University of Central Oklahoma, Edmond, OK 73034, United States
Corresponding author:Xing, D.
(xingda@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570C
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:Photodynamic therapy (PDT) functions as a cancer therapy through two major cell death mechanisms: apoptosis and necrosis. Immunological responses induced by PDT has been mainly associated with necrosis while apoptosis associated immune responses have not fully investigated. Heat shock proteins (HSPs) play an important role in regulating immune responses. In present study, we studied whether apoptotic tumor cells could induce immune response and how the HSP70 regulates immune response. The endocytosis of tumor cells by the activated macrophages was observed at single cell level by LSM. The TNF-α release of macrophages induced by co-incubated with PDT-apoptotic tumor cells was detected by ELISA. We found that apoptotic tumor cells treated by PDT could activate the macrophages, and the immune effect decreased evidently when HSP70 was blocked. These findings not only show that apoptosis can induce immunological responses, but also show HSP70 may serves as a danger signal for immune cells and induce immune responses to regulate the efficacy of PDT.
Number of references:25
Main heading:Photodynamic therapy
Controlled terms:Cell death - Macrophages - Proteins - Tumors
Uncontrolled terms:Macrophage immune response - Tumor cells
Classification code:461.2 Biological Materials and Tissue Engineering - 461.6 Medicine and Pharmacology - 461.9 Biology - 461.9.1 Immunology - 804.1 Organic Compounds
Treatment:Theoretical (THR)
DOI:10.1117/12.759703
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20074910964753
Title:Third-harmonic generation in cylindrical parabolic quantum wires with static magnetic fields
Authors:Wang, Guanghui (1); Guo, Qi (1)
Author affiliation:(1) Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631, China
Corresponding author:Wang, G.
(wanggh@scnu.)
Source title:Physica B: Condensed Matter
Abbreviated source title:Phys B Condens Matter
Volume:403
Issue:1
Issue date:January 1, 2008
Publication year:2008
Pages:37-43
Language:English
ISSN:09214526
CODEN:PHYBE3
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:The third-harmonic generation (THG) and its conversion efficiency in Alx Ga1 - x As / GaAs cylindrical parabolic quantum wires with static magnetic fields are studied in detail. The calculated results show that the parabolic confining potential and the static magnetic field have evident influence on the THG and its conversion efficiency. In addition, the conversion efficiency of the THG is also related to the input optical intensity. It is noted that very high conversion efficiency of the THG can be obtained by increasing properly the input optical intensity and choosing an optimized parabolic confining potential and applied static magnetic field. © 2007 Elsevier B.V. All rights reserved.
Number of references:19
Main heading:Semiconductor quantum wires
Controlled terms:Harmonic generation - Magnetic fields
Uncontrolled terms:Density matrix method - Optical intensity - Parabolic confining potential
Classification code:701.2 Magnetism: Basic Concepts and Phenomena - 713.2 Oscillators - 714.2 Semiconductor Devices and Integrated Circuits
Treatment:Theoretical (THR)
DOI:10.1016/j.physb.2007.08.003
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081211163998
Title:A note on Kirchhoff index
Authors:Zhou, Bo (1); Trinajstic, Nenad (2)
Author affiliation:(1) Department of Mathematics, South China Normal University, Guangzhou, 510631, China; (2) The Rugjer Boškovic Institute, P.O. Box 180, HR-10 002 Zagreb, Croatia
Corresponding author:Zhou, B.
(zhoubo@scnu.)
Source title:Chemical Physics Letters
Abbreviated source title:Chem. Phys. Lett.
Volume:455
Issue:1-3
Issue date:March 31, 2008
Publication year:2008
Pages:120-123
Language:English
ISSN:00092614
CODEN:CHPLBC
Document type:Journal article (JA)
Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract:We report lower bounds for the Kirchhoff index of a connected (molecular) graph in terms of its structural parameters such as the number of vertices (atoms), the number of edges (bonds), maximum vertex degree (valency), connectivity and chromatic number. © 2008 Elsevier B.V. All rights reserved.
Number of references:27
Main heading:Graph theory
Controlled terms:Chemical bonds - Molecular structure - Parameter estimation
Uncontrolled terms:Kirchhoff index - Molecular graph
Classification code:731.1 Control Systems - 801.4 Physical Chemistry - 931.3 Atomic and Molecular Physics
Treatment:Experimental (EXP)
DOI:10.1016/j.cplett.2008.02.060
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082711346589
Title:Theoretical investigation on Raman induced kerr effect spectroscopy in nonlinear confocal microscopy
Authors:Guo, Lina (1); Tang, Zhilie (1); Xing, Da (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; (2) Key Laboratory of Laser Life Science, Ministry of Education of China, South China Normal University, Guangzhou 510631, China
Corresponding author:Tang, Z.
(tangzhl@scnu.)
Source title:Science in China, Series G: Physics, Mechanics and Astronomy
Abbreviated source title:Sci. China Ser. G Phys. Mech. Astron.
Volume:51
Issue:7
Issue date:July 2008
Publication year:2008
Pages:788-796
Language:English
ISSN:16721799
E-ISSN:18622844
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:The imaging theory of Raman induced Kerr effect spectroscopy (RIKES) in nonlinear confocal microscopy is presented in this paper. Three-dimensional point spread function (3D-PSF) of RIKES nonlinear confocal microscopy in isotropic media is derived with Fourier imaging theory and RIKES theory. The impact of nonlinear property of RIKES on the spatial resolution and imaging properties of confocal microscopy have been analyzed in detail. It is proved that RIKES nonlinear confocal microscopy can simultaneously provide more information than two-photon confocal microscopy concerning molecular vibration mode, vibration orientation and optically induced molecular reorientation, etc. It is shown that RIKES nonlinear confocal microscopy significantly enhances the spatial resolution and imaging quality of confocal microscopy and achieves much higher resolution than that of two-photon confocal microscopy. © 2008 Science in China Press and Springer-Verlag GmbH.
Number of references:21
Main heading:Imaging techniques
Controlled terms:Computational geometry - Confocal microscopy - Electrooptical effects - Electrostatics - Error analysis - Kerr magnetooptical effect - Lattice vibrations - Magnetic field effects - Magnetooptical effects - Microscopes - Microscopic examination - Molecular orientation - Molecules - Nonlinear programming - Optical Kerr effect - Optical properties - Optical transfer function - Optics - Photoacoustic effect - Photons - Spectrum analysis - Three dimensional - Vibrations (mechanical) - Vibrators
Uncontrolled terms:(1 1 1) orientation - (e ,2e) theory - Fourier imaging - Higher resolution - Imaging properties - Imaging quality - Imaging theory - Isotropic medium - Kerr effect spectroscopy - Molecular reorientations - Non-linear properties - Point Spread Function (PSF) - Spatial resolution (SR) - Springer (CO) - Three dimensional (3D) - Two photons - Vibration modes
Classification code:933.1.1 Crystal Lattice - 931.3 Atomic and Molecular Physics - 931.1 Mechanics - 921.6 Numerical Methods - 921 Mathematics - 746 Imaging Techniques - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 723.5 Computer Applications - 723.1 Computer Programming - 701.2 Magnetism: Basic Concepts and Phenomena - 701.1 Electricity: Basic Concepts and Phenomena - 601.1 Mechanical Devices
DOI:10.1007/s11433-008-0086-6
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083911588085
Title:Comparison of pitting susceptibility of passive films formed on iron with different inorganic inhibitors
Authors:Lu, J. (1); Li, W.S. (1); Luo, J.L. (2)
Author affiliation:(1) Department of Chemistry, South China Normal University, Guangzhou 510006, China; (2) Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 2G6, Canada
Corresponding author:Li, W. S.
(liwsh@scnu.)
Source title:Corrosion Engineering Science and Technology
Abbreviated source title:Corros. Eng. Sci. Technol.
Volume:43
Issue:3
Issue date:September 2008
Publication year:2008
Pages:208-212
Language:English
ISSN:1478422X
Document type:Journal article (JA)
Publisher:Maney Publishing, Suite 1C, Joseph's Well, Hanover Walk, Leeds, LS3 1AB, United Kingdom
Abstract:The pitting susceptibility of passive films on iron in chloride containing solution, formed using three different inorganic inhibitors, chromate, nitrite and bicarbonate, is determined using linear sweep voltammogram. It is found that the pitting susceptibility becomes stronger in the order of the passive films formed in 0·01M chromate, 0·1M nitrite and 0·5M bicarbonate. The difference in pitting susceptibility is explained by the difference in electronic property of the passive films, which is determined using Mott-Schottky measurements. The donor density of the passive films formed in bicarbonate is highest, followed by nitrite and then by chromate, although the concentration of bicarbonate is five times that of nitrite and 50 times that of chromate. This suggests that the passive film formed in bicarbonate Is most susceptible to attack by chloride ions. © 2008 Institute of Materials, Minerals and Mining.
Number of references:37
Main heading:Pitting
Controlled terms:Chromates - Concentration (process) - Electronic properties
Uncontrolled terms:Chloride ions - Donor density - Inorganic inhibitor - Inorganic inhibitors - Iron - Linear sweep voltammogram - Mott-Schottky - Passive film - Passive films - Pitting susceptibility
Classification code:539.1 Metals Corrosion - 701.1 Electricity: Basic Concepts and Phenomena - 802.3 Chemical Operations - 804.2 Inorganic Compounds
DOI:10.1179/174327807X214842
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258672
Title:Analysis of caspase3 activation in ChanSu-induced apoptosis of ASTC-a-1 Cells by Fluorescence Techniques
Authors:Sun, Lei (1); Chen, Tongsheng (1); Wang, Longxiang (1); Wang, Huiying (1)
Author affiliation:(1) MOE Key Libratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
Corresponding author:Chen, T.
(chentsh@scnu.)
Source title:Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Abbreviated source title:Progr. Biomed. Opt. Imaging Proc. SPIE
Volume:6857
Monograph title:Biophotonics and Immune Responses III
Issue date:2008
Publication year:2008
Article number:68570I
Language:English
ISSN:16057422
ISBN-13:9780819470324
Document type:Conference article (CA)
Conference name:Biophotonics and Immune Responses III
Conference date:January 21,2008 - January 21,2008
Conference location:San Jose, CA, United states
Conference code:71993
Sponsor:The International Society for Optical Engineering (SPIE)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:ChanSu(CS), a traditional Chinese medicine, is composed of many chemical compoments. It is isolated from the dried white secretion of the auricular and skin glands of toads, and it has been widely used for treating the heart diseases and other systemic illnesses. However, it is difficult to judge antitumor effect of agents derived from ChanSu and the underlying mechanism of ChanSu inducing cell apoptosis is still unclear. This report was performed to explore the inhibitory effect and mechanism of ChanSu on human lung adenocarcinoma cells (ASTC-a-1). Fluorescence emission spectra and fluorescence resonance energy transfer (FRET) were used to study the caspase-3 activation during the ChanSu-induced human lung adenocarcinoma (ASTC-a-1) cell apoptosis. CCK-8 was used to assay the inhibition of ChanSu on the cell viability. The cells expressing stably with SCAT3 was used to examine if caspase-3 was activated by ChanSu using acceptor photobleaching technique. Our data showed that treatment of ASTC-a-1 cell with ChanSu resulted in the inhibition of viability and induction of apoptosis in a dose-dependent manner and the SCAT3 was almost cleaved 24 h after ChanSu treatment, implying that ChanSu induced cell apoptosis via a caspase-3-dependent death pathway. Our findings extend the knowledge about the cellular signaling mechanisms mediating ChanSu-induced apoptosis.
Number of references:17
Main heading:Cell death
Controlled terms:Biological organs - Disease control - Fluorescence microscopy - Tumors
Uncontrolled terms:Cellular signaling - Skin glands
Classification code:461.2 Biological Materials and Tissue Engineering - 461.7 Health Care - 461.9 Biology - 931.4 Quantum Theory; Quantum Mechanics - 941.3 Optical Instruments
Treatment:Theoretical (THR)
DOI:10.1117/12.761422
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20080611089016
Title:Imaging theory of nonlinear Raman confocal microscopy
Authors:Guo, L.N. (1); Tang, Z.L. (1); Xing, D. (2)
Author affiliation:(1) School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, China; (2) MOE Key Laboratory of Laser Life Science, South China Normal University, Guangzhou, China; (3) School of Electronics and Information, GuangDong Polytechnic Normal University, Guangzhou, China
Corresponding author:Tang, Z.L.
(tangzhl@scnu.)
Source title:Journal of Modern Optics
Abbreviated source title:J. Mod. Opt.
Volume:55
Issue:3
Issue date:February 2008
Publication year:2008
Pages:375-386
Language:English
ISSN:09500340
E-ISSN:13623044
CODEN:JMOPEW
Document type:Journal article (JA)
Publisher:Taylor and Francis Ltd., 4 Park Square, Milton Park, Abingdon, Oxfordshire, OX14 4RN, United Kingdom
Abstract:A novel nonlinear Raman confocal microscopy utilizing Raman induced Kerr effect spectroscopy (RIKES) is presented in this paper. The imaging theory of RIKES confocal microscopy with Gaussian beam is derived. The imaging properties of RIKES confocal microscopy and the impact of different beam waist widths of Gaussian beam on the lateral and axial resolution have been analyzed in detail. It is proved that RIKES confocal microscopy has high sensitivity and high resolution, besides capability to characterize inherent structural features, such as vibration mode, vibration orientation, and optically induced molecular reorientation etc. Therefore, nonlinear Raman confocal microscopy that is based on RIKES has potential to provide a novel characteristic imaging method comparable to the existing imaging techniques based on other nonlinear optical processes, such as two-photon fluorescence, second harmonic generation (SHG) and coherent anti-Stoke Raman scattering (CARS).
Number of references:27
Main heading:Nonlinear optics
Controlled terms:Confocal microscopy - Gaussian beams - Harmonic generation - Imaging techniques - Optical transfer function - Photons - Raman scattering
Uncontrolled terms:Nonlinear confocal microscopy - Raman susceptibility - Vibration orientation
Classification code:931.3 Atomic and Molecular Physics - 746 Imaging Techniques - 744.9 Laser Applications - 741.3 Optical Devices and Systems - 741.1.1 Nonlinear Optics - 713.2 Oscillators - 711 Electromagnetic Waves
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1080/09500340701445237
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20081611209085
Title:Tourmaline ceramic balls stimulate growth and metabolism of three fermentation microorganisms
Authors:Ni, He (1); Li, Ling (1); Li, Hai-Hang (1)
Author affiliation:(1) Guangdong Provincial Key Lab. of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China
Corresponding author:Li, H.-H.
(li_haihang@)
Source title:World Journal of Microbiology and Biotechnology
Abbreviated source title:World J. Microbiol. Biotechnol.
Volume:24
Issue:5
Issue date:May 2008
Publication year:2008
Pages:725-731
Language:English
ISSN:09593993
CODEN:WJMBEY
Document type:Journal article (JA)
Publisher:Kluwer Academic Publishers, Van Godewijckstraat 30, Dordrecht, 3311 GZ, Netherlands
Abstract:Effects of tourmaline ceramic balls on growth and metabolism of Saccharomyces cerevisiae, Lactobacillus acidophilus and Aspergillus oryzae were studied. Treatments with 3, 6, 9 or 12 g of tourmaline ceramic balls in a 50 ml culture showed significant stimulation of the growth of the three microorganisms. In optimal treatments with 12 g of tourmaline balls, the growth of S. cerevisiae, L. acidophilus, and A. oryzae was increased by 34, 32 and 10%, respectively. After 72 h fermentation of S. cerevisiae, total carbohydrate content in the culture medium was decreased by 65% and ethanol production was increased by 150%. Total carbohydrate content was decreased by 80% and the pH value was decreased by 0.3, as a result of organic acid production in the medium of L. acidophilus after 72 h fermentation. In the case of A. oryzae, enzyme activities of protease and amylase were increased by 90 and 31%, respectively, after 96 h fermentation. Results indicated that tourmaline stimulates initiation of growth in the early lag stage and increases production of metabolites at a later stage of fermentation. The strong stimulatory effect of tourmaline on growth, utilization of substrates and production of metabolites in the three microorganisms suggests a potential application in the fermentation industry. © 2007 Springer Science+Business Media B.V.
Number of references:33
Main heading:Microorganisms
Controlled terms:Carbohydrates - Enzyme activity - Fermentation - Metabolism - Silicates - Yeast
Uncontrolled terms:Aspergillus oryzae - Lactobacillus acidophilus - Protease - Tourmaline
Classification code:461.8 Biotechnology - 461.9 Biology - 804.1 Organic Compounds - 812 Ceramics, Refractories and Glass - 822.3 Food Products
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1007/s11274-007-9529-x
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20082011258825
Title:Polarization coding and decoding by phase modulation in polarizing sagnac interferometers
Authors:Liu, Xiaobao (1); Liao, Changjun (1); Tang, Zhilie (2); Wang, Jindong (1); Wei, Zhenjun (1); Liu, Songhao (1)
Author affiliation:(1) School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, China; (2) School for Physics and Telecom Engineering, South China Normal University, Guangzhou, China
Corresponding author:Liao, C.
(chliao@scnu.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6827
Monograph title:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Issue date:2008
Publication year:2008
Article number:68270I
Language:English
ISSN:0277786X
CODEN:PSISDG
ISBN-13:9780819470027
Document type:Conference article (CA)
Conference name:Quantum Optics, Optical Data Storage, and Advanced Microlithography
Conference date:November 12,2007 - November 14,2007
Conference location:Beijing, China
Conference code:72000
Sponsor:The International Society for Optical Engineering (SPIE); Chinese Optical Society (COS)
Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
Abstract:We present implementation of phase modulated polarization coding by polarizing sagnac interferometers. At four different low input voltages of the phase modulator, coder encodes pulse into four different polarization states, 45°, 135° linearly polarized or right, left circle polarized, while the decoder serves as the complementary polarizers. The mean visibility of the system is tested at 94.31%.
Number of references:14
Main heading:Quantum cryptography
Controlled terms:Decoding - Interferometers - Light polarization - Phase modulation - Quantum optics - Signal encoding
Uncontrolled terms:B92 protocol - BB84 protocol - Free space quantum key distribution - Phase compensation - Polarization coding - Polarization decoding - Polarization states - Polarizing M-Z interferometers - Sagnac interferometers
Classification code:941.3 Optical Instruments - 931.4 Quantum Theory; Quantum Mechanics - 741.1 Light/Optics - 723.2 Data Processing and Image Processing - 716.1 Information Theory and Signal Processing - 716 Telecommunication; Radar, Radio and Television - 713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers
Treatment:Theoretical (THR)
DOI:10.1117/12.774073
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20090811913707
Title:Statistical model of average bond lengths in Ga1-xInxNyAs1-y systems
Authors:Tang, Li-Li (1); Ma, Yuan-Xin (2); Tang, Ji-Yu (1); Wen, Yu-Hua (1); Huang, Wei (3); Liu, Chao (1); Wu, Li-Feng (1)
Author affiliation:(1) School of Physics and Telecommunications Engineering, South China Normal University, Guangzhou 510006, China; (2) School of Medical Engineering and Technol., Xinjiang Medical University, Urumqi 830011, China; (3) Designing Institute of China Sanjiang Space Group, Wuhan 430035, China
Corresponding author:Tang, L.-L.
(toney2001@)
Source title:Bandaoti Guangdian/Semiconductor Optoelectronics
Abbreviated source title:Bandaoti Guangdian
Volume:29
Issue:6
Issue date:December 2008
Publication year:2008
Pages:919-923
Language:Chinese
ISSN:10015868
CODEN:BAGUE5
Document type:Journal article (JA)
Publisher:China National Publishing Industry Trading Corporation, P.O. Box 614, Beijing, 100011, China
Abstract:A statistical model, which calculates the average bond lengths in as-grown and fully annealed Ga1-xInxNyAs1-y, alloys when the constituent proportion is an integer and x:y ≥ 4, is proposed. First, the statistical bond distributions of a definite supercell was calculated, and then the formulas of the average lengths was generalized after extracting the distribution probabilities of the N centered nearest-neighbor clusters with Gauss distribution based on former. experiments. Finally, the optimized bond lengths of Ga28In4N1As31 supercells under different nearest-neighbor environments were obtained using DMol3 module in Material Studio software based on the first principle, and the average bond lengths and strain were computed. It is found that both the local strain and the total strain of the system would decrease after annealing, which was in good agreement with the previous researches.
Number of references:16
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
Accession number:20083811567574
Title:Almost periodic solutions of single population model with hereditary effects
Authors:Xie, Yi (0); Li, Xiangao (0)
Corresponding author:Li, X.
(lixg@scnu.)
Corr. author affiliation:School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China
Source title:Applied Mathematics and Computation
Abbreviated source title:Appl. Math. Comput.
Volume:203
Issue:2
Issue date:Sep 15 2008
Publication year:2008
Pages:690-697
Language:English
ISSN:00963003
CODEN:AMHCBQ
Document type:Journal article (JA)
Publisher:Elsevier Inc., New York, NY 10010, United States
Abstract:The main purpose of this paper is to show how the coincidence degree theory can be used to obtain almost periodic solutions for single population model with almost periodic coefficients. Some sufficient conditions are obtained for checking the existence, uniqueness and stability of almost periodic solution. The analysis generalizes the results corresponding to the periodic case of the single population model. © 2008 Elsevier Inc. All rights reserved.
Number of references:22
DOI:10.1016/j.amc.2008.05.085
Database:Compendex
Compilation and indexing terms, Copyright 2008 Elsevier Inc.
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