Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
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Issue date:2010 Publication year:2010 Pages:930-933 Article number:5646908 Language:English ISBN-13:9781424465149 Document type:Conference article (CA) Conference name:2010 3rd International Congress on Image and Signal Processing, CISP 2010 Conference date:October 16, 2010 - October 18, 2010 Conference location:Yantai, China Conference code:83091 Sponsor:Yantai University Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:Locally discriminating projection (LDP) is a new subspace feature extraction method which takes special consideration of both the local information and the class information. For LDP method, the image matrix data are vectorized to find the intrinsic manifold structure, and the dimension of matrix data is usually very high, so LDP cannot be performed because of the singularity of scatter matrix. In addition, the matrix-to-vector transform procedure may cause the loss of some useful structural information embedding in the original images. Thus, in this paper, a novel method, called 2D locally discriminating projection (2DLDP), for face recognition is proposed. Experiments conducted on the ORL and FERET face database demonstrate the effectiveness of the proposed method. ©2010 IEEE. Number of references:10 Main heading:Feature extraction Controlled terms:Face recognition - Matrix algebra - Principal component analysis - Signal processing - Supervised learning - Two dimensional Uncontrolled terms:Class information - Face database - Feature extraction methods - Image matrix - Local information - Locally discriminating projection (LDP) - matrix - Novel methods - Original images - Projection method - Scatter matrix - Structural information - Two dimensional principal component analysis (2DPCA) - Vector transform Classification code:716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 731.5 Robotics - 902.1 Engineering Graphics - 921.1 Algebra - 922.2 Mathematical Statistics DOI:10.1109/CISP.2010.5646908 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20105213529531 Title:A modified SLM scheme for PAPR reduction Authors:Chen, Lin (1); Hu, Xuelong (2) Author affiliation:(1) Department of Communication Engineering, Shanghai University of Electronic Power, Shanghai, China; (2) School of Information Engineering, Yangzhou University, Yangzhou, China Corresponding author:Chen, L. Source title:Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 Abbreviated source title:Proc. - Int. Congr. Image Signal Process., CISP Volume:9 Monograph title:Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 Issue date:2010 Publication year:2010 Pages:4299-4302 Article number:5647295 Language:English ISBN-13:9781424465149 Document type:Conference article (CA) Conference name:2010 3rd International Congress on Image and Signal Processing, CISP 2010 Conference date:October 16, 2010 - October 18, 2010 Conference location:Yantai, China Conference code:83091 Sponsor:Yantai University Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:Orthogonal Frequency Division Multiplexing (OFDM) has recently been focused on in high-data-rate wireless communication research. But the high Peak-to-Average Power Ratio (PAPR) is one of the main obstacles to limit wide applications of OFDM. In this paper, based on the thorough research of selective mapping (SLM) and partial transmit sequences (PTS), the modified SLM schemes with the Riemann matrix are proposed. In the proposed schemes, it is not needed to exchange side information between transmitter and receiver. And it is shown that better PAPR reduction performance is achieved as compared to the basic SLM by Monte Carlo simulations. ©2010 IEEE. Number of references:26 Main heading:Orthogonal frequency division multiplexing Controlled terms:Computer simulation - Frequency allocation - Monte Carlo methods - Orthogonal functions - Signal processing - Wireless telecommunication systems Uncontrolled terms:matrix - OFDM - PAPR - PTS - SLM Classification code:716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 723.5 Computer Applications - 921 Mathematics - 922.2 Mathematical Statistics DOI:10.1109/CISP.2010.5647295 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20105213527049 Title:Novel approach to controllable synthesis of gold nanoparticles supported on polyaniline nanofibers Authors:Han, Jie (1); Li, Liya (1); Guo, Rong (1) Author affiliation:(1) School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, China Corresponding author:Guo, R.(guorong@yzu.edu.cn) Source title:Macromolecules Abbreviated source title:Macromolecules Volume:43 Issue:24
Issue date:December 28, 2010 Publication year:2010 Pages:10636-10644 Language:English ISSN:00249297 CODEN:MAMOBX 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 facile and effective route has been proposed to synthesize gold nanoparticles with controllable size that uniformly deposited on surfaces of polyaniline (PANI) nanofibers, where PANI nanofibers themselves act as both supporter and reductant. Effects of reagent concentration, reaction time, and temperature on size and uniformity of gold nanoparticles are investigated. Furthermore, a functional doping acid of typical thioglycolic acid (TA) that introduced in PANI nanofibers shows good potential for improvement in uniformity of composites and control over gold nanoparticle size. Fourier transform infrared (FTIR), X-ray diffraction (XRD), and ultraviolet-visible (UV-vis) spectra are used to characterize PANI nanofiber/gold nanoparticle composites. Adaptability of this approach for making PANI nanofiber composites with other noble metal nanoparticles, such as platinum, silver, and palladium nanoparticles, is also studied. A possible formation mechanism involved has been then proposed. Furthermore, PANI nanofiber/gold nanoparticle composites are found to serve as effective recycled catalysts to activate the reduction of 4-nitrophenol (4NP) in the presence of NaBH Number of references:41 Main heading:Silver Controlled terms:Catalyst activity - Fourier transforms - Gold - Gold coatings - Nanofibers - Nanoparticles - Organic polymers - Palladium - Platinum - Polyaniline - Precious metals - Synthesis (chemical) - X ray diffraction Uncontrolled terms:4-Nitrophenol - Catalytic activity - Controllable size - Controllable synthesis - Formation mechanism - Fourier transform infrared - Gold Nanoparticles - Nanofiber composites - Noble metal nanoparticles - Palladium nanoparticles - Polyaniline nanofibers - Reaction time - Reagent concentration - Reductants - Thioglycolic acid - Ultraviolet-visible spectra Classification code:933.1.1 Crystal Lattice - 933 Solid State Physics - 921.3 Mathematical Transformations - 815.1.1 Organic Polymers - 813.2 Coating Materials - 802.2 Chemical Reactions - 761 Nanotechnology - 708 Electric and Magnetic Materials - 547.1 Precious Metals DOI:10.1021/ma102251e Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20105113509310 Title:Nucleation effect of thermotropic liquid crystalline polymer on the crystallization of poly(Ε-caprolactone) Authors:Wu, Defeng (1); Zhang, Yisheng (1); Zhang, Ming (1); Gao, Minge (1) Author affiliation:(1) School of Chemistry and Chemical Engineering, Yangzhou University, Jiangsu 225002, China; (2) Provincial Key Laboratories of Environmental Material and Engineering, Jiangsu 225002, China Corresponding author:Wu, D.(dfwu@yzu.edu.cn) Source title:Polymers and Polymer Composites Abbreviated source title:Polym Polym Compos Volume:18 Issue:2
Issue date:2010 Publication year:2010 Pages:91-101 Language:English ISSN:09673911 E-ISSN:14782391 CODEN:PPOCEC Document type:Journal article (JA) Publisher:Rapra Technology Ltd., Shawbury, Shrewsbur, Shropshire, SY4 4NR, United Kingdom Abstract:Poly(Ε-caprolactone) (PCL) has attracted much attention in recent years due to its good biodegradability and biocompatibility. As a semicrystalline polymer, the final properties of PCL strongly depend on its bulk crystallization level. However, PCL shows a lower crystallization temperature and rate than other aliphatic polyesters, which restricts its range of applications. To improve the crystallization is hence a key problem to enhance the performance of PCL materials. In this work, a thermotropic liquid crystalline polymer (TLCP) was used as a nucleating agent to improve the crystallization of PCL. The PCL/TLCP blend with the maximum TLCP content of 10 wt.% was prepared by melt mixing. The nonisothermal crystallization behaviour of the PCL matrix was studied using differential scanning calorimetry (DSC) and polarized optical microscopy (POM), and the crystallization kinetics was then further analysed by methods including the Avrami, Ozawa, Mo, Ziabicki, Lauritzen-Hoffman and Kissinger models. The results showed that the presence of the solid TLCP particles could enhance crystallization temperature of the PCL matrix evidently at very small content levels (1 wt.%). Although the mobility of the PCL chain segments decreased with increasing TLCP content, heterogeneous nucleation by TLCP particles always played a dominant role in the overall crystallization. Therefore the blends showed higher crystallization rates and ability than those of pure PCL. The kinetic analysis and the data obtained in this work could be useful to optimize the processing conditions and to improve the crystallization of PCL. © Smithers Rapra Technology, 2010. Number of references:53 Main heading:Liquid crystal polymers Controlled terms:Biocompatibility - Biodegradation - Crystalline materials - Crystallization kinetics - Crystals - Differential scanning calorimetry - Liquids - Nucleation - Optical microscopy - Polymers - Polypropylenes Uncontrolled terms:Aliphatic polyester - Bulk crystallization - Caprolactone - Chain segments - Content level - Crystallization rates - Crystallization temperature - Heterogeneous nucleation - Key problems - Kinetic analysis - Kissinger model - matrix - Melt mixing - Nonisothermal crystallization - Nucleating agents - Nucleation effect - Polarized optical microscopy - Processing condition - Semi-crystalline polymer - Thermotropic liquid crystalline polymer Classification code:933 Solid State Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 815.1.1 Organic Polymers - 815.1 Polymeric Materials - 801 Chemistry - 741.1 Light/Optics - 462.5 Biomaterials (including synthetics) Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20105113503279 Title:The study of application scope for backstepping technique Authors:Wang, Li (1); Wang, Qing-Lin (3); Sun, Chang-Yin (1) Author affiliation:(1) School of Automation, Southeast University, Nanjing 210096, China; (2) School of Energy and Power Engineering, Yangzhou University, Yangzhou 225009, China; (3) School of Automation, Beijing Institute of Technology, Beijing, 100081, China Corresponding author:Wang, L.(wanglshenhl@126.com) Source title:Proceedings of the 29th Chinese Control Conference, CCC'10 Abbreviated source title:Proc. Chin. Control Conf., CCC Monograph title:Proceedings of the 29th Chinese Control Conference, CCC'10 Issue date:2010 Publication year:2010 Pages:3566-3570 Article number:5571958 Language:English ISBN-13:9787894631046 Document type:Conference article (CA) Conference name:29th Chinese Control Conference, CCC'10 Conference date:July 29, 2010 - July 31, 2010 Conference location:Beijing, China Conference code:82524 Sponsor:IEEE Control Systems Society (CSS); The ICROS OF Korea; IEEE CSS Singapore Chapter; IEEE CSS Hong Kong Chapter; IEEE CSS Beijing Chapter Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:The backstepping procedure is one of the tools, which provides control law synthesis for nonlinear smooth systems. A class of nonlinear systems which is so-called strict-feedback systems is usually considered, but the backstepping procedure applied to pure feedback nonlinear systems results sometimes in a control law, which exhibits singularity. In this paper, a class of pure nonlinear systems which satisfies some given sufficient conditions is described, and the derived control law is numerically well posed. Another class of systems which has weakened conditions than above discussed systems is also considered which makes the application scope of backstepping technique more extensive. The simulation results demonstrate that the control law of this class of systems does not exhibit singularity, which means division by zero or ill-conditioned. Number of references:9 Main heading:Backstepping Controlled terms:Control theory - Differential equations - Feedback control - Lyapunov functions - Nonlinear feedback - Nonlinear systems Uncontrolled terms:Backstepping procedure - Backstepping technique - Control laws - Division-by-zero - Ill-conditioned - Pure-feedback nonlinear systems - Simulation result - Smooth system - Strict feedback systems - Sufficient conditions Classification code:731.1 Control Systems - 921 Mathematics - 921.2 Calculus Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20105113504336 Title:Improved adaptive neural control for a class of MIMO time delay systems Authors:Zhu, Qiuqin (1); Zhang, Tianping (1); Yang, Yuequan (1) Author affiliation:(1) Department of Automation, College of Information Engineering, Yangzhou University, Yangzhou 225009, China Corresponding author:Zhu, Q. Source title:Proceedings of the 29th Chinese Control Conference, CCC'10 Abbreviated source title:Proc. Chin. Control Conf., CCC Monograph title:Proceedings of the 29th Chinese Control Conference, CCC'10 Issue date:2010 Publication year:2010 Pages:2102-2106 Article number:5573720 Language:Chinese ISBN-13:9787894631046 Document type:Conference article (CA) Conference name:29th Chinese Control Conference, CCC'10 Conference date:July 29, 2010 - July 31, 2010 Conference location:Beijing, China Conference code:82524 Sponsor:IEEE Control Systems Society (CSS); The ICROS OF Korea; IEEE CSS Singapore Chapter; IEEE CSS Hong Kong Chapter; IEEE CSS Beijing Chapter Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:Based on the principle of sliding mode control and property of Nussbaum-type functions, an improved adaptive neural control scheme is proposed for a class of MIMO nonlinear time-varying delay systems with unknown function control gains. By choosing appropriate Lyapunov-Krasovskii functionals, unknown time-varying delay uncertainties are compensated for. In this paper, the restriction of control gains is relaxed, and the system considered here is more general. By utilizing Young's inequality, the assumption of time-varying delay uncertainties is relaxed. Moreover, only one parameter is adjusted in each subsystem, and the complexity of implementation is reduced. By theoretical analysis, the closed-loop control system is proved to be semi-globally uniformly ultimately bounded. Finally, simulation results are provided to illustrate the effectiveness of the proposed approach. Number of references:12 Main heading:Adaptive control systems Controlled terms:Delay control systems - Lyapunov functions - Ship steering equipment - Sliding mode control - Time varying control systems Uncontrolled terms:Adaptive Control - Neural control - Nussbaum function - Sliding modes - Time-varying delay Classification code:671.2 Ship Equipment - 731.1 Control Systems - 921 Mathematics Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20105213518233 Title:Influence of potential and temperature on the ESR spectra of polyaniline synthesized using the interface polymerization Authors:Zhang, Fengmin (1); Mu, Shaolin (1) Author affiliation:(1) Department of Chemistry, Yangzhou University, Yangzhou 225002, Jiangsu Province, China; (2) Laboratory Center, Yangzhou University, Yangzhou 225002, Jiangsu Province, China Corresponding author:Mu, S.(slmu@yzu.edu.cn) Source title:Journal of Physical Chemistry B Abbreviated source title:J Phys Chem B Volume:114 Issue:50
Issue date:December 23, 2010 Publication year:2010 Pages:16687-16693 Language:English ISSN:15206106 E-ISSN:15205207 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:In situ ESR-electrochemical measurements indicate that the distinct redox properties of polyaniline synthesized using the interface polymerization method (labeled IP-polyaniline) are strongly related to its unpaired spin density. IP-polyaniline in a 1.0 M NaCl solution of pH 5.5 still holds stronger ESR signals at a wide potential range, which results in its high redox activity in this solution. The influence of pH on the potential range for the formation of polaron is detected. Also, some unusual phenomena are observed in the measurements of ESR signal intensity as a function of applied potential, for example, the ESR signal intensity of IP-polyaniline in 0.20 M HCl solution decreases with increasing potential from 0.30 to 0.80 V accompanied with the peak-to-peak line width δH Number of references:34 Main heading:Polyaniline Controlled terms:Electrochemical properties - Hydrochloric acid - Polymerization - Redox reactions - Sodium chloride Uncontrolled terms:Applied potentials - Electrochemical measurements - ESR spectra - HCl solution - In-situ - Influence of pH - NaCl solution - Polymerization method - Potential range - Redox activity - Redox property - Signal intensities - Spin densities - Temperature dependent - Temperature independents - Temperature range Classification code:801.4.1 Electrochemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804.2 Inorganic Compounds - 815.1.1 Organic Polymers - 815.2 Polymerization DOI:10.1021/jp107041m Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20105113503671 Title:Adaptive fuzzy logic control for a class of input delay nonlinear systems Authors:Zhu, Qing (1); Zhang, Tianping (1); Fei, Shumin (2); Yao, Xiang (1) Author affiliation:(1) College of Information Engineering, Yangzhou University, Yangzhou 225009, China; (2) School of Automation, Southeast University, Nanjing 210096, China Corresponding author:Zhu, Q.(qingzhu@yzu.edu.cn) Source title:Proceedings of the 29th Chinese Control Conference, CCC'10 Abbreviated source title:Proc. Chin. Control Conf., CCC Monograph title:Proceedings of the 29th Chinese Control Conference, CCC'10 Issue date:2010 Publication year:2010 Pages:2547-2552 Article number:5572909 Language:English ISBN-13:9787894631046 Document type:Conference article (CA) Conference name:29th Chinese Control Conference, CCC'10 Conference date:July 29, 2010 - July 31, 2010 Conference location:Beijing, China Conference code:82524 Sponsor:IEEE Control Systems Society (CSS); The ICROS OF Korea; IEEE CSS Singapore Chapter; IEEE CSS Hong Kong Chapter; IEEE CSS Beijing Chapter Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:An output feedback control scheme combined with backstepping, fuzzy logic system and adaptive control is proposed for the output tracking control problem of a class of nonlinear systems with input delay and disturbances. A filter and a virtual observer are constructed to substitute the immeasurable system state. Fuzzy logic systems are employed to estimate the unknown continuous functions. The control scheme ensures that the closed-loop system is semi-globally uniformly ultimately bounded (SGUUB). The tracking error is proved to be bounded and ultimately converges to an adequately small compact set. The feasibility is investigated by a simulation example. Number of references:16 Main heading:Adaptive control systems Controlled terms:Backstepping - Closed loop control systems - Control theory - Fuzzy logic - Fuzzy systems - Nonlinear feedback - Nonlinear systems Uncontrolled terms:Adaptive Control - Adaptive fuzzy logic control - Compact sets - Continuous functions - Control schemes - Fuzzy logic system - Input delays - Input felay - Output feedback - Output feedback controls - Output tracking control - Semi-globally uniformly ultimately bounded - Simulation example - System state - Tracking errors Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 731.1 Control Systems Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110413618077 Title:A watermarking algorithm based on block energy analysis of wavelet transform's coefficients and Lorenz chaotic attractor Authors:Hu, Xuelong (1); Tian, Wei (1); Zheng, Yongai (1) Author affiliation:(1) School of Information Engineering, Yangzhou University, Yangzhou, China Corresponding author:Hu, X.(huxuelong@126.com) Source title:International Journal of Digital Content Technology and its Applications Abbreviated source title:Int. J. Digit. Content Technol. Appl. Yüklə 2,34 Mb. Dostları ilə paylaş:
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