Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field

Corresponding author:Zhang, Y.C.([e-mail])

Source title:Advanced Materials Research

Abbreviated source title:Adv. Mater. Res.

Volume:396-398

Monograph title:Advances in Chemical Engineering

Issue date:2012

Publication year:2012

Pages:1794-1798

Language:English

ISSN:10226680

ISBN-13:9783037853085

Document type:Conference article (CA)

Conference name:2011 International Conference on Chemical, Material and Metallurgical Engineering, ICCMME 2011

Conference date:December 23, 2011 - December 25, 2011

Conference location:Beihai, China

Conference code:87755

Sponsor:Guangxi University; Wuhan University of Science and Technology; Queensland University of Technology

Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany

Abstract:The electrochemical interaction between bacteria and electrode should be further strengthened at the present stage in order to develop microbial fuel cells (MFCs) to practical power sources. Developing effective anode materials is an alternative to achieving this goal. In this study, the redox activity of polyaniline (PAn) in neutral pH solution was improved by doping ionic liquid (IL) into the synthesized PAn; and the current output of MFC could be enhanced by using IL doped polyaniline (PAnIL) film as anode material. Both cyclic voltermmeter (CV) measurement and MFC operation showed that PAnIL electrochemically synthesized in solution with 30%(v/v) IL addition exhibited the best performance.

Number of references:17

Main heading:Microbial fuel cells

Controlled terms:Anodes - Ionic liquids - Metallurgical engineering - Polyaniline - Redox reactions - Semiconductor doping

Uncontrolled terms:Anode material - Current output - Doped polyaniline - Electrochemical interactions - Graphite anode - Neutral pH - Polyaniline film - Power sources - Present stage - Redox activity

Classification code:815.1.1 Organic Polymers - 804 Chemical Products Generally - 802.2 Chemical Reactions - 802.1 Chemical Plants and Equipment - 714.2 Semiconductor Devices and Integrated Circuits - 702.2 Fuel Cells - 531 Metallurgy and Metallography

DOI:10.4028/www.scientific.net/AMR.396-398.1794

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114619302

Title:Rheological percolation behavior and isothermal crystallization of poly(butyene succinte)/carbon nanotube composites

Authors:Yuan, Lijuan (1); Wu, Defeng (1); Zhang, Ming (2); Zhou, Weidong (3); Lin, Dongpo (1)

Author affiliation:(1) School of Chemistry and Chemical Engineering, Yangzhou University, Jiangsu 225002, China; (2) Provincial Key Laboratory of Environmental Material and Engineering, Jiangsu 225002, China; (3) Testing Center, Yangzhou University, Jiangsu 225002, China

Corresponding author:Wu, D.([e-mail])

Source title:Industrial and Engineering Chemistry Research

Abbreviated source title:Ind. Eng. Chem. Res.

Volume:50

Issue:24

Issue date:December 21, 2011

Publication year:2011

Pages:14186-14192

Language:English

ISSN:08885885

E-ISSN:15205045

CODEN:IECRED

Document type:Journal article (JA)

Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States

Abstract:Carbon nanotube (CNT) filled poly(butylene succinate) composites (PBSCNs) were prepared by melt compounding. The oscillatory rheological properties and crystallization behavior and kinetics were then investigated. The results show that the percolation network of CNTs in the small amplitude oscillatory shear flow is temperature dependent and the values of percolation thresholds reduce gradually with an increase of temperature. Therefore, the principle of time-temperature superposition is invalid on the dynamic rheological responses of those percolated PBSCNs. Besides, the presence of CNTs highly promotes the crystallization of PBS, increasing the overall crystallization rate. But the nucleation mechanism of PBS is not altered with addition of CNTs because the PBS itself is nucleated heterogeneously. © 2011 American Chemical Society.

Number of references:45

Main heading:Rheology

Controlled terms:Butenes - Carbon nanotubes - Percolation (fluids) - Shear flow - Solvents

Uncontrolled terms:Crystallization behavior - Crystallization rates - Isothermal crystallization - Melt-compounding - Nanotube composites - Nucleation mechanism - Oscillatory shear flow - Percolation behavior - Percolation networks - Percolation thresholds - Poly (butylene succinate) - Rheological property - Rheological response - Small amplitude - Temperature dependent - Time temperature superposition

Classification code:421 Strength of Building Materials; Mechanical Properties - 631.1 Fluid Flow, General - 761 Nanotechnology - 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds - 931.1 Mechanics

DOI:10.1021/ie202039v

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114610142

Title:Defect-related energy structures of AlN nanotips probed by photoluminescence

Authors:Chen, Haitao (1); Chen, Guoshuai (1); Zhou, Xuming (1); Zhu, Wenming (1); Chen, Xiaobing (1); Zeng, Xianghua (1)

Author affiliation:(1) College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China; (2) National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China

Corresponding author:Chen, H.([e-mail])

Source title:Journal of Physics D: Applied Physics

Abbreviated source title:J Phys D

Volume:44

Issue:50

Issue date:December 21, 2011

Publication year:2011

Article number:505304

Language:English

ISSN:00223727

E-ISSN:13616463

CODEN:JPAPBE

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Circus, Temple Way, Bristol, BS1 6BE, United Kingdom

Abstract:Large-scale AlN nanotip arrays were fabricated via a facile catalysis-free approach using AlCl3 powder and NH3 as starting materials. These nanotips exhibit two intense broad emissions centred at about 375 and 480nm. Both bands do not change significantly or freeze out at a low temperature, showing the features of photoionization of deep donor electrons. Photoluminescence and photoluminescence excitation spectral examination as well as the possible mechanism involved are systematically investigated. It reveals that the two bands are connected with the electronic states determined by the nitrogen vacancy and complex defects. The related energy structures are also provided. This work provides a possible mechanism for defect-related emissions in various AlN nanostructures. © 2011 IOP Publishing Ltd.

Number of references:28

Main heading:Nanotips

Controlled terms:Defects - Photoluminescence

Uncontrolled terms:AlN - AlN nanotips - Complex defects - Deep donor - Defect-related emission - Energy structures - Freeze out - Low temperatures - Nitrogen vacancies - Photo-luminescence excitation

Classification code:423 Non Mechanical Properties and Tests of Building Materials - 741.1 Light/Optics - 761 Nanotechnology - 933 Solid State Physics - 951 Materials Science

DOI:10.1088/0022-3727/44/50/505304

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114612961

Title:A Policy-based adaptive web services security framework

Authors:Li, Bin (1); Zhao, Lingjun (1); Zhu, Junwu (1); Wu, Jun (1)

Author affiliation:(1) School of Information Engineering, Yangzhou University, Yangzhou, China

Corresponding author:Li, B.([e-mail])

Source title:Journal of Software

Abbreviated source title:J. Softw.

Volume:6

Issue:12 SPEC. ISSUE

Issue date:2011

Publication year:2011

Pages:2456-2463

Language:English

ISSN:1796217X

Document type:Journal article (JA)

Publisher:Academy Publisher, P.O.Box 40,, OULU, 90571, Finland

Abstract:Web services security has become a hot topic in the research of service oriented computing. This paper aims to study many pivotal technologies in the web services security. Firstly, a policy-based framework for adaptive web services security is proposed, with the policy concept, management mechanism and execution mechanism can be separated effectively, moreover, by management of user context and web services context, web services access control can adapt to the changed environment. Secondly, a policy description language called ReiT is given, ReiT is a declarative language based on the rules and ontology and can express the structural and non-structural knowledge. A mixed reasoning mechanism is proposed, the web service access control policy including the user context and web services context can be evaluated by the reasoner. Finally, a policy aware BDI agent to authorize the access control of the web services is presented, and a prototype system based on Java EE and Jade Agent platform is implemented, Simulation experimental results and an example demonstrate the security framework is feasible and effective. © 2011 Academy Publisher.

Number of references:15

Main heading:Web services

Controlled terms:Access control - Agents - Computer aided software engineering - Computer software - Distributed computer systems - Ontology - Public policy

Uncontrolled terms:Adaptive web - BDI Agent - Context-awareness - Declarative Languages - JADE agent platforms - Management mechanisms - Policy concept - Policy description language - Policy-based framework - Prototype system - Reasoner - Reasoning mechanism - Security frameworks - Service access - Service oriented computing - User context - Web Service Security - Web services security

Classification code:722.4 Digital Computers and Systems - 723 Computer Software, Data Handling and Applications - 803 Chemical Agents and Basic Industrial Chemicals - 971 Social Sciences

DOI:10.4304/jsw.6.12.2456-2463

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114612472

Title:An efficient way of frequent embedded subtree mining on biological data

Authors:Liu, Wei (1); Chen, Ling (1)

Author affiliation:(1) Institute of Information Science and Technology, Yangzhou University, Yangzhou 225009, China; (2) National Key Lab of Novel Software Tech, Nanjing University, Nanjing 210093, China

Corresponding author:Liu, W.([e-mail])

Source title:Journal of Computers

Abbreviated source title:J. Comput.

Volume:6

Issue:12

Issue date:2011

Publication year:2011

Pages:2574-2581

Language:English

ISSN:1796203X

Document type:Journal article (JA)

Publisher:Academy Publisher, P.O.Box 40,, OULU, 90571, Finland

Abstract:Data mining provides biological research a useful information analyzing tool. The key factors which influence the performance of biological data mining approaches are the large-scale of biological data and the high similarities among patterns mined. In this paper, we present an efficient algorithm named IRTM for mining frequent subtrees embedded in biological data. We also advance a string encoding method for representing the trees, and a scope-list for extending all substrings for frequency test. The IRTM algorithm adopts vertically mining approach, and uses some pruning techniques to further reduce the computational time and space cost. Experimental results show that IRTM algorithm can achieve significantly performance improvement over previous works. © 2011 ACADEMY PUBLISHER.

Number of references:16

Main heading:Data mining

Controlled terms:Algorithms - Forestry

Uncontrolled terms:Biological data - Biological data mining - Biological research - Computational time - Efficient algorithm - Embedded Frequent Sub Tree - Encoding methods - Frequency tests - Frequent subtrees - Key factors - Performance improvements - Pruning techniques - Scope-List - Sub-strings - Subtrees

Classification code:723 Computer Software, Data Handling and Applications - 821.0 Woodlands and Forestry - 921 Mathematics

DOI:10.4304/jcp.6.12.2574-2581

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114606671

Title:Frequent items mining on data stream based on weighted counts

Authors:Guo, Yanyang (1); Z., Jiang; Y.Y., Wang; Q., Mei

Author affiliation:(1) School of Information Engineering, Yangzhou Polytechnic College, Yangzhou, China; (2) School of Information Engineering, Yangzhou University, Yangzhou, China

Corresponding author:Guo, Y.([e-mail])

Source title:Proceedings - 2011 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2011

Abbreviated source title:Proc. - Int. Conf. Cyber-Enabled Distrib. Comput. Knowl. Discov., CyberC

Monograph title:Proceedings - 2011 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2011

Issue date:2011

Publication year:2011

Pages:48-54

Article number:6079401

Language:English

ISBN-13:9780769545578

Document type:Conference article (CA)

Conference name:3rd International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2011

Conference date:October 10, 2011 - October 12, 2011

Conference location:Beijing, China

Conference code:87660

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:Frequent items mining is an important data mining task with many real-world applications. By considering different weights of the items, weighted frequent items mining can discover more important knowledge compared to traditional frequent patterns mining. In this paper, we presented a new algorithm called count-MH to discover weighted frequent items over data streams, the proposed method is based on weighted factor and hash function where its space complexity is, the processing time for each item is in average. Experimental results show that count-MH is efficient for frequent items mining. © 2011 IEEE.

Number of references:18

Main heading:Data mining

Controlled terms:Data communication systems - Data processing - Hash functions

Uncontrolled terms:Data mining tasks - Data stream - frequent items - Processing Time - Real-world application - Space complexity - weighted counts - Weighted factors

Classification code:716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 921 Mathematics

DOI:10.1109/CyberC.2011.17

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115014604264

Title:An overview of double power flow motor used in hybrid electrical vehicles

Authors:Chen, Yunyun (1); Quan, Li (1); Zhu, Xiaoyong (1); Liu, Juanjuan (1)

Author affiliation:(1) School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, China; (2) School of Energy and Power Engineering, Yangzhou University, Yangzhou, 225127, China

Corresponding author:Quan, L.([e-mail])

Source title:2011 International Conference on Electrical Machines and Systems, ICEMS 2011

Abbreviated source title:Int. Conf. Electr. Mach. Syst., ICEMS

Monograph title:2011 International Conference on Electrical Machines and Systems, ICEMS 2011

Issue date:2011

Publication year:2011

Article number:6073743

Language:English

ISBN-13:9781457710445

Document type:Conference article (CA)

Conference name:2011 International Conference on Electrical Machines and Systems, ICEMS 2011

Conference date:August 20, 2011 - August 23, 2011

Conference location:Beijing, China

Conference code:87613

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:Recently, in order to improve the fuel economy and reduce the emissions, a electric variable transmission (EVT) system which integrated double power flow motor(DPFM) machine is used in HEV. This paper presented the general theory about DPFM. Some typical configurations of DPFMs are investigated in this paper. The machine topology, the design theory, and the control strategy are also overviewed. Finally, in accordance with the current problems of the DPFM technology, some possible development trends of the DPFM technology are discussed. © 2011 IEEE.

Number of references:22

Main heading:Electric power transmission

Controlled terms:Electric machinery - Electric vehicles - Fuel economy - Vehicle transmissions

Uncontrolled terms:Control strategies - Design theory - Development trends - Electric-variable transmission - General theory - Hybrid electrical vehicle - Power flows

Classification code:432 Highway Transportation - 521 Fuel Combustion and Flame Research - 602.2 Mechanical Transmissions - 705.1 Electric Machinery, General - 706.1.1 Electric Power Transmission

DOI:10.1109/ICEMS.2011.6073743

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114619230

Title:Poly(3-hexylthiophene)/TiO2 nanoparticle-functionalized electrodes for visible light and low potential photoelectrochemical sensing of organophosphorus pesticide chlopyrifos

Authors:Li, Hongbo (1); Li, Jing (2); Xu, Qin (1); Hu, Xiaoya (1)

Author affiliation:(1) College of Chemistry and Engineering, Yangzhou University, 88 South University Avenue, Yangzhou 225002, China; (2) College of Chemistry and Biology Engineering, Yancheng Institute of Technology, 9 Yingbin Avenue, Yancheng 224051, China

Corresponding author:Hu, X.([e-mail])

Source title:Analytical Chemistry

Abbreviated source title:Anal. Chem.

Volume:83

Issue:24

Issue date:December 15, 2011

Publication year:2011

Pages:9681-9686

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 dramatic visible light photoelectrochemical sensing platform for the detection of pesticide molecules at zero potential (versus saturated calomel electrode) was first constructed using poly(3-hexylthiophene)-functionalized TiO2 nanoparticles. Poly(3-hexylthiophene) (P3HT) was synthesized via chemical oxidative polymerization with anhydrous FeCl3 as the oxidant, 3-hexylthiophene as the monomer, and chloroform as the solvent, and the functional TiO2 nanoparticles were facilely prepared by blending TiO2 nanoparticles and P3HT in chloroform solution. The resulting photoelectrocatalysts were characterized by scanning electron microscopy, Raman spectroscopy, and X-ray diffractometry. Under visible light irradiation, P3HT generated the transition from the valence band to the conduction band, delivering the excited electrons into the conduction band of TiO2 and then to the glassy carbon electrode. Simultaneously, a positive charged hole (h⁺) of TiO2 may form and migrate to the valence band of P3HT, which can react with H2O to generate ^&bullOH, and then it converted chlopyrifos into chlopyrifos^&bull that promoted the amplifying photocurrent response. On the basis of the proposed photoelectrochemical mechanism, a methodology for sensitive photoelectrochemical sensing for chlopyrifos at zero potential was thus developed. Under optimal conditions, the proposed photoelectrochemical method could detect chlopyrifos ranging from 0.2 to 16 μmol L^-1 with a detection limit of 0.01 μmol L^-1 at a signal-to-noise ratio of 3. The photoelectrochemical sensor had an excellent specificity against the other pesticides and could be successfully applied to the detection of reduced chlopyrifos in green vegetables, showing a promising application in photoelectrochemical sensing. © 2011 American Chemical Society.

Number of references:54

Main heading:Light

Controlled terms:Blending - Carrier mobility - Chlorine compounds - Conduction bands - Electrochemistry - Electrodes - Functional polymers - Glass membrane electrodes - Glassy carbon - Nanoparticles - Organic solvents - Pesticides - Raman spectroscopy - Scanning electron microscopy - Signal to noise ratio - Titanium dioxide - Valence bands - X ray diffraction analysis

Uncontrolled terms:Chemical oxidative polymerization - Chloroform solutions - Detection limits - Excited electrons - Functionalized - Glassy carbon electrodes - Optimal conditions - Organophosphorus pesticide - Photo-electrochemical method - Photocurrent response - Photoelectrocatalysts - Photoelectrochemicals - Poly (3-hexylthiophene) - Saturated calomel electrode - Sensing platforms - Signal to noise - TiO - Visible light - Visible-light irradiation

Classification code:803 Chemical Agents and Basic Industrial Chemicals - 804.2 Inorganic Compounds - 815.1 Polymeric Materials - 932.1 High Energy Physics - 933 Solid State Physics - 933.3 Electronic Structure of Solids - 951 Materials Science - 802.3 Chemical Operations - 704.1 Electric Components - 708 Electric and Magnetic Materials - 716.1 Information Theory and Signal Processing - 741.1 Light/Optics - 761 Nanotechnology - 801 Chemistry - 801.4.1 Electrochemistry

DOI:10.1021/ac202679g

Database:Compendex

Compilation and indexing terms, Copyright 2011 Elsevier Inc.

Accession number:20115114625073

Title:Study on cyclic hydrogen storage properties of LaNi5-xAlx (x=0-1.2) alloys

Authors:Cheng, Honghui (1); Pan, Jinping (2); Chen, Wei (3); Chen, Demin (3); Yang, Ke (3)

Author affiliation:(1) Yangzhou University, Yangzhou 225127, China; (2) Jiaxing Special Equipment Inspection Institute, Jiaxing 314001, China; (3) Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Corresponding author:Cheng, H.([e-mail])

Source title:Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

Abbreviated source title:Xiyou Jinshu Cailiao Yu Gongcheng

Volume:40

Issue:11

Issue date:November 2011

Publication year:2011

Pages:1921-1925

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:LaNi5-xAlx (x=0, 0.25, 0.75, 1.2) alloys were prepared by vacuum induction melting. The microstructure, mechanical property, cyclic stability of hydrogen absorption/desorption and pulverization resistance of the alloys were investigated. The results demonstrate that the addition of Al element can markedly improve the stability of crystal structure and hydrogen storage capacity of the alloys; with increase of the Al content, the pulverization resistance of the alloys becomes worse at first, and then is improved; mechanical property, which is the main factor, and hydrogen storage capacity jointly influence pulverization resistance property of the alloys; in the atmosphere of ordinary high-purity hydrogen, the main reason for the capacity attenuation of the LaNi5-xAlx (x=0-1.2) alloys should be their intrinsic properties, mostly maybe the disproportionation reaction. © 2011, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.