Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
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Number of references:42 Main heading:Immunology Controlled terms:Cell immobilization - Chemiluminescence - Proteins - Scanning electron microscopy Uncontrolled terms:Capillary - Fetoprotein - Immunoassay - Micro-reactor - Streptavidin Classification code:461.8 Biotechnology - 461.9.1 Immunology - 741.1 Light/Optics - 804.1 Organic Compounds Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20114914577479 Title:Development of an impedimetric immunosensor for the determination of 3-amino-2-oxazolidone residue in food samples Authors:Yang, Gongjun (1); Jin, Wenjie (3); Wu, Liping (2); Wang, Qianqian (3); Shao, Hongxia (3); Qin, Aijian (3); Yu, Bing (4); Li, Dongming (4); Cai, Baoliang (4) Author affiliation:(1) School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (2) College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China; (3) College of Veterinary Medicine, Ministry of Education Key Laboratory of Poultry Preventive Medicine, Yangzhou University, Yangzhou 225002, China; (4) Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210000, China Corresponding author:Yang, G.(yanggongjun888@163.com) Source title:Analytica Chimica Acta Abbreviated source title:Anal. Chim. Acta Volume:706 Issue:2
Issue date:14 November 2011 Publication year:2011 Pages:120-127 Language:English ISSN:00032670 E-ISSN:18734324 CODEN:ACACAM Document type:Journal article (JA) Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands Abstract:The use of furazolidone in food animals has been banned in European Union (EU) because of its carcinogenicity and mutagenicity on human health, but its continued misuse is widespread. Therefore, there is an urgent need for a simple, reliable, and rapid method for the detection of its marker residue, 3-amino-2-oxazolidinone (AOZ), in food products. In this regard, a sensitive and reliable electrochemical method was presented to detect AOZ based on a novel label-free electrochemical impedimetric immunosensor to address this need. The immobilization of monoclonal antibody against AOZ (denoted as AOZ-McAb) on the gold electrode was carried out through a stable acyl amino ester intermediate generated by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydrosuccinimide (NHS), which could condense antibodies on the self-assembled monolayer (SAM). The detection of AOZ was performed by measuring the relative change in charge transfer resistance before and after AOZ and AOZ-McAb immunoreaction by electrochemical impedance spectroscopy (EIS). Under the optimized conditions, the relative change in charge transfer resistance was proportional to the logarithmic value of AOZ concentrations in the range of 20.0 to 1.0×104ngmL-1 (r=0.9987). Moreover, the proposed immunosensor has a high selectivity to AOZ alone with no significant response to the metabolites of other nitrofuran antibiotics, such as 3-amino-5-morpholinomethyl-2-oxazolidinone (AMOZ), semicarbazide (SEM), and 1-aminohydantoin hydrochloride (AHD). This protocol has been applied to detect AOZ in food samples with satisfactory results. © 2011. Number of references:30 Main heading:Electrochemical impedance spectroscopy Controlled terms:Animals - Charge transfer - Food products - Immunosensors - Monoclonal antibodies - Self assembled monolayers Uncontrolled terms:3-amino-2-oxazolidinone - 3-Amino-2-oxazolidone - Amino esters - Carbodiimides - Charge transfer resistance - Electrochemical impedance - ELectrochemical methods - European union - Food - Food animals - Food samples - Furazolidone - Gold electrodes - High selectivity - Human health - Impedimetric immunosensors - Label free - Mutagenicity - Optimized conditions - Rapid method - Residue - Semicarbazide Classification code:822.3 Food Products - 822 Food Technology - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 814 Leather and Tanning - 813.2 Coating Materials - 802.2 Chemical Reactions - 801 Chemistry - 471 Marine Science and Oceanography - 461 Bioengineering and Biology Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20115014602836 Title:Three-dimensional dynamical model and controlled characteristics of magnetic levitation spherical reluctance driving joint Authors:Zeng, Li (1); Zhang, Fan (1); Xu, Yuanyuan (1) Author affiliation:(1) College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China Corresponding author:Zeng, L.(lizengcf@163.com) Source title:Jixie Gongcheng Xuebao/Journal of Mechanical Engineering Abbreviated source title:Jixie Gongcheng Xuebao Volume:47 Issue:21
Issue date:November 5, 2011 Publication year:2011 Pages:69-75 Language:Chinese ISSN:05776686 CODEN:CHHKA2 Document type:Journal article (JA) Publisher:Editorial Office of Chinese Journal of Mechanical, 22 Baiwanzhuang Dajie, Beijing, 100037, China Abstract:The multi-degree-of-freedom spherical driving joint is direct supported and driven by spherical motor owns high mechanical integrity and has advantages on control and trajectory planning. But due to the friction of mechanical bearing which will generate heat, it has bad dynamic characteristics of the driving joint when it works at high speed and even ultra-high-speed. Based on motor technology, magnetic levitation and robotics, a novel multi-degree-of-freedom spherical reluctance driving joint with magnetic levitation is presented, and the coupling model of its electromagnetic suspension force and electromagnetic torque is established. Meanwhile, the joint rotor's non-linear strong coupling three dimensional dynamical model and inverse system model is infered. And the decoupling linearization of state feedback for the joint system is made, which makes the system become linear system with six degrees of freedom. With the control of pseudo-derivative feedback which proportional plus goes first regulator and simulation experiments, it shows that the system of decoupling linearization joint system has the performance of well static, high-speed response, good dynamic characteristics and strong capacity of resisting disturbance. © 2011 Journal of Mechanical Engineering. Number of references:11 Main heading:Magnetic levitation Controlled terms:Bearings (machine parts) - Dynamics - Electromagnetism - Feedback linearization - Linear systems - Magnetic levitation vehicles - Spheres - State feedback - Three dimensional - Ultrasonic devices Uncontrolled terms:Controlled characteristics - Driving joints - Electromagnetic torques - Inverse system decoupling - Magnetic force Classification code:931.1 Mechanics - 902.1 Engineering Graphics - 753.2 Ultrasonic Devices - 731.1 Control Systems - 701.2 Magnetism: Basic Concepts and Phenomena - 701 Electricity and Magnetism - 682 Railroad Rolling Stock - 631 Fluid Flow - 601.2 Machine Components DOI:10.3901/JME.2011.21.069 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20114814563320 Title:Static response of functionally graded sandwich Timoshenko beam under thermal loads Authors:Niu, Peng (1); Li, Shirong (2); Jin, Chunfu (3); Yang, Gang (1) Author affiliation:(1) Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China; (2) School of Civil Science and Engineering, Yangzhou University, Yangzhou 730050, China; (3) School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China Corresponding author:Niu, P.(np777@126.com) Source title:Guti Lixue Xuebao/Acta Mechanica Solida Sinica Abbreviated source title:Guti Lexue Xuebao Volume:32 Issue:5
Issue date:October 2011 Publication year:2011 Pages:483-492 Language:Chinese ISSN:02547805 Document type:Journal article (JA) Publisher:Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China Abstract:By accurately considering the axial extension and transverse shear deformation in the sense of theory of Timoshenko beam, geometrically nonlinear governing equations for functionally graded sandwich beams subjected to thermal loads were formulated. By using a shooting method, the obtained boundary value problem of nonlinear differential equations was numerically solved; and thermal buckling and post-buckling responses of transversely non-uniformly heated FGM Timoshenko sandwich beams with fixed-fixed ends were obtained. The effects of material gradient property, surface layer thickness and temperature parameter on the buckling deformation and the tension-bending coupling deformation of the beam were discussed in details, and the temperature distribution in the thickness direction of sandwich beam are plotted. Number of references:12 Main heading:Nonlinear equations Controlled terms:Bending (deformation) - Buckling - Composite beams and girders - Differential equations - Functionally graded materials - Particle beams - Sandwich structures - Thermal load Uncontrolled terms:Buckling deformation - Effects of materials - Functionally graded - Geometrically nonlinear - Governing equations - Nonlinear differential equation - Postbuckling response - Sandwich beams - Shooting method - Shooting methods - Static response - Surface layers - Temperature parameters - Thermal buckling - Thickness direction - Timoshenko beams - Transverse shear deformation Classification code:931 Classical Physics; Quantum Theory; Relativity - 921.2 Calculus - 921.1 Algebra - 932.1 High Energy Physics - 643.1 Space Heating - 415 Metals, Plastics, Wood and Other Structural Materials - 412 Concrete - 421 Strength of Building Materials; Mechanical Properties Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20114814564958 Title:Study of internal flow in cube-type bidirection passages of axial-flow pump system by numerical simulation and experiment Authors:Liu, Chao (1); Jin, Yan (1); Zhou, Jiren (1); Tang, Fangping (1); Hao, Chunming (2); Han, Jun (2) Author affiliation:(1) College of Hydraulic Engineering, Yangzhou University, Yangzhou 225009, China; (2) Jiangsu Taihu Administration of Hydraulic Projects, Suzhou 215128, China Corresponding author:Liu, C.(liuchao@yzu.edu.cn) Source title:Shuili Fadian Xuebao/Journal of Hydroelectric Engineering Abbreviated source title:Shuili Fadian Xuebao Volume:30 Issue:5
Issue date:October 2011 Publication year:2011 Pages:192-198 Language:Chinese ISSN:10031243 Document type:Journal article (JA) Publisher:Tsinghua University Press, Beijing, 100084, China Abstract:The pump system with bidirectional box-shaped flow passages is of simple structure and good applicability, but its system efficiency is low and vortex often appears in its suction passage causing vibrations harmful to safe operation. To solve these problems, a new curve diversion structure and an inlet pier design were proposed and applied for renovation of a bidirectional flow pumping station. With numerical simulation, the flow fields of the bidirectional system were obtained and the system's hydraulic performances were predicted. Meanwhile, a model was tested on a standard test bench to measure its system performances, and calculations of performance curves were compared with the measurements. Both results for the high efficiency ranges are close to each other, which validates the calculations. It is also shown that the new design, by effectively eliminating the vortex and enhancing system efficiency, ensures safe and economical operation of the pump units. © Copyright. Number of references:8 Main heading:Inlet flow Controlled terms:Computer simulation - Efficiency - Hydraulic machinery - Machine design - Mathematical models - Pumps - Structural design - Vortex flow Uncontrolled terms:Axial flow pump - Bi-direction - Bi-directional flows - Bidirectional system - Diversion structures - Economical operation - Flow passage - Hydraulic performance - Internal flows - New design - Performance curve - Pump system - Safe operation - Simple structures - Standard tests - Suction passage - System efficiency Classification code:913.1 Production Engineering - 723.5 Computer Applications - 632.2 Hydraulic Equipment and Machinery - 921 Mathematics - 631.1 Fluid Flow, General - 601 Mechanical Design - 408.1 Structural Design, General - 618.2 Pumps Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20114814563404 Title:Study on comparison of hydraulic design schemes for shaft tubular pump system Authors:Xu, Lei (1); Lu, Linguang (1); Chen, Wei (1); Wang, Gang (1) Author affiliation:(1) College of Hydraulic Science and Engineering, Yangzhou University, Jiangsu Yangzhou 225009, China Corresponding author:Xu, L.(yzlulg@126.com) Source title:Shuili Fadian Xuebao/Journal of Hydroelectric Engineering Abbreviated source title:Shuili Fadian Xuebao Volume:30 Issue:5
Issue date:October 2011 Publication year:2011 Pages:207-215 Language:Chinese ISSN:10031243 Document type:Journal article (JA) Publisher:Tsinghua University Press, Beijing, 100084, China Abstract:Shaft tubular pump system has a straight and smooth conduit of hydraulic loss less than other types of pump, and it has advantages of lower investment, simpler structure and easier installation and maintenance. To improve its hydraulic performance, its design schemes was compared by 3D numerical simulations under the design requirements of the Pizhou pumping station, a first-stage sub-project of the Eastern Route South-to-North Water Diversion Project. The results were verified by two scale-model tests, flow pattern test and hydraulic performance test. This study reveals that in comparison with the rear-positioned scheme, the flows in the inlet and outlet conduits of the front-positioned shaft tube scheme are more uniform and smooth with less hydraulic losses, and the resulting hydraulic performance of the system is much better. Under low-head conditions excellent performances were obtained with system efficiency greater than 83% at most operation points and NPSH Number of references:11 Main heading:Hydraulic machinery Controlled terms:Design - Flood control - Inlet flow - Pumping plants - Pumps - Three dimensional computer graphics - Water supply Uncontrolled terms:Hydraulic machines - Hydraulic performance - Low-head pumping station - Model test - Numerical computations - Scheme comparison Classification code:632.2 Hydraulic Equipment and Machinery - 631.1 Fluid Flow, General - 618.2 Pumps - 723.5 Computer Applications - 454.1 Environmental Engineering, General - 446 Waterworks - 408 Structural Design - 446.1 Water Supply Systems Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20114814563706 Title:Robust adaptive control for class of switched nonlinear systems in strict-feedback form Authors:Zhu, Bai-Cheng (1); Zhang, Tian-Ping (1); Gao, Zhi-Yuan (1) Author affiliation:(1) College of Information Engineering, Yangzhou University, Yangzhou 225127, China Corresponding author:Zhang, T.-P.(tpzhang@yzu.edu.cn) Source title:Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) Abbreviated source title:Zhongnan Daxue Xuebao (Ziran Kexue Ban) Volume:42 Issue:SUPPL. 1 Issue date:September 2011 Publication year:2011 Pages:254-260 Language:Chinese ISSN:16727207 CODEN:ZDXZAC Document type:Journal article (JA) Publisher:Central South University of Technology, Hunan, Changsha, 410083, China Abstract:An adaptive neural network control scheme is proposed for a class of nonlinear switched systems in strict-feedback form. The design is based on the backstepping technique, the Lyapunov function of integral type, the approximation capability of neural networks, and the dwell-time approach. By introducing the adaptive compensation term of the approximation error, and utilizing Young's inequality, the control performance of the closed-loop system is improved. Compared with the existing literature, the proposed approach relaxes the requirements of the system and eliminates the assumption that the amplitude of the state's jump should be related to the tracking error. By theoretical analysis, the closed-loop control system is shown to be semi-globally uniformly ultimately bounded. Finally, simulation results are presented to illustrate the effectiveness of the proposed approach. Number of references:13 Main heading:Adaptive control systems Controlled terms:Backstepping - Closed loop control systems - Control system stability - Error compensation - Lyapunov functions - Neural networks - Nonlinear feedback - Switching systems Uncontrolled terms:Adaptive compensation term - Adaptive neural network control - Approximation capabilities - Approximation errors - Backstepping technique - Control performance - Dwell-time - Lyapunov stability - Nonlinear switched systems - Robust-adaptive control - Semi-globally uniformly ultimately bounded - Switched non-linear systems - Switched system - Tracking errors - Young's inequality Classification code:721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.4 Artificial Intelligence - 731.1 Control Systems - 731.4 System Stability Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20115114612343 Title:Effects of HCl concentration on the growth and negative thermal expansion property of the ZrW Authors:Liu, Hongfei (1); Zhang, Zhiping (2); Zhang, Wei (3); Chen, Xiaobing (3) Author affiliation:(1) Testing Center of Yang Zhou University, Yang zhou 225009, China; (2) Department of Electrical and Mechanical Engineering, Jianghai College, Yang zhou 225009, China; (3) School of Physics Science and Technology, Yang Zhou University, Yang zhou 225009, China Corresponding author:Liu, H.(liuhf@yzu.edu.cn) Source title:Ceramics International Abbreviated source title:Ceram Int Volume:38 Issue:2
Issue date:March 2012 Publication year:2012 Pages:1341-1345 Language:English ISSN:02728842 CODEN:CINNDH Document type:Journal article (JA) Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom Abstract:A kind of negative thermal expansion ZrW Number of references:25 Main heading:Thermal expansion Controlled terms:Buoyancy - Concentration (process) - Expansion - Hydrochloric acid - Hydrothermal synthesis - Nanorods - Powders - Transmission electron microscopy - Tungsten compounds - X ray diffraction - X ray powder diffraction - Zirconium Uncontrolled terms:HCl solution - Hydrothermal methods - Negative thermal expansion - Post annealing - Transmission electron microscope - Zirconium tungstate Classification code:933.1.1 Crystal Lattice - 933 Solid State Physics - 804 Chemical Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 951 Materials Science - 802.2 Chemical Reactions - 741.3 Optical Devices and Systems - 631 Fluid Flow - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 536 Powder Metallurgy - 761 Nanotechnology DOI:10.1016/j.ceramint.2011.09.010 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Yüklə 2,34 Mb. Dostları ilə paylaş:
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