作者机构：
[万小军] Department of Physics and Telecommunication Engineering, Hunan City University, Yiyang 413000, China;[林建国; 王锋华; 万小军] Faculty of Material and Photoelectronic Physics, Xiangtan University, Xiangtan 411105, China
通讯机构：
Department of Physics and Telecommunication Engineering, Hunan City University, China
摘要：
BN coated Al2O3 fibre-reinforced NiAl-alloy composites were fabricated by hot pressing at 1 200-1 400 (C, and the interfacial microstructure and chemical stability of BN coated Al2O3 fibre-reinforced NiAl-alloy composites were investigated by scanning electron microscopy (SEM) and analytical transmission electron microscopy (TEM). It was found that the complicated chemical reactions and diffusion processes happened in the interface area between BN-layer and Ni25.8Al9.6Ta8.3 during the hot pressing at 1 200-1 400 (C. A continuous AlN-layer was formed at the interface due to the reaction between NiAl and BN. At the same time, Cr diffused extensively into the BN-layer and reacted with boron to form Cr boride precipitates (Cr5B3). In addition, a few particles of Ta-rich phase were also precipitated in NiAl matrix near the interface.
期刊：
Lecture Notes in Electrical Engineering,2011年87 LNEE(VOL. 2):603-610 ISSN：1876-1100
通讯作者：
Jin, H.(Jinhuixia1980@163.com)
作者机构：
[Jin, Huixia] Department of Physics and Telecom Engineering, Hunan City University, Yiyang, China;[Yang, Gelan] Department of Computer Science, Hunan City University, Yiyang, China;[Tang, Jun] Department of Information Engineering, Hunan Urban Construction College, Xiangtan, China
作者机构：
[Song, Juanjuan] Hunan City Univ, Dept Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.;[Tu, Li] Hunan City Univ, Dept Comp Sci, Yiyang 413000, Hunan, Peoples R China.
通讯机构：
[Song, Juanjuan] H;Hunan City Univ, Dept Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.
会议名称：
2011 International Conference on Future Materials Engineering and Industry Application(ICFMEIA 2011)
会议时间：
2011-01-01
会议地点：
Bali Island, Indonesia
会议主办单位：
[Song, Juanjuan] Hunan City Univ, Dept Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.^[Tu, Li] Hunan City Univ, Dept Comp Sci, Yiyang 413000, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Modified fly ash;Microwave;Radiation;Cu2+
摘要：
The comprehensive utilization of fly ash mainly concentrated is in construction engineering channels, road engineering, it used to deal with waste water is full of hope. As this, it can achieve the pu
作者机构：
[Cai Jian-Le; Huang Wei-Li] Hangzhou Normal Univ, Coll Sci, Hangzhou 310018, Zhejiang, Peoples R China.;[Huang Wei-Li] Hunan City Univ, Dept Phys & Telecom Engn, Yiyang 413000, Peoples R China.
通讯机构：
[Cai Jian-Le] H;Hangzhou Normal Univ, Coll Sci, Hangzhou 310018, Zhejiang, Peoples R China.
关键词：
Higher-Order Lagrange Systems;Lie Point Transformation
摘要：
Conformal invariance and conserved quantities for a higher-order Lagrange system by Lie point transformation of groups are studied. The differential equation of motion for the higher-order Lagrange system is introduced. The definition of conformal invariance for the system together with its determining equations and conformal factor are provided. The necessary and sufficient condition that the system's conformal invariance would be Lie symmetry by the infinitesimal one-parameter point transformation group is deduced. The conserved quantity of the system is derived using the structural equation satisfied by the gauge function. An example of a higher-order mechanical system is offered to illustrate the application of the result.
摘要：
Porous Ti35Nb alloy with a porosity of 66% was made by a powder metallurgical method, and then it was treated by a standard treatment for activating the surface of Ti implant materials involving alkali and heat treatment. The alkali and heat treatment causes damages of the struts of the porous Ti35Nb in the form of reaction products layer, grain-pullout and cracks. Consequently, it leads to a significant degradation of the strength of the porous alloy. The effect of the alkali and heat treatment on the strength of the porous alloy was discussed.
期刊：
Lecture Notes in Electrical Engineering,2011年87 LNEE(VOL. 2):311-317 ISSN：1876-1100
通讯作者：
Deng, X.(little_army@139.com)
作者机构：
[Deng, Xiaojun; Wen, Zhiqiang; Zhang, Tao; Deng, Bing] College of Computer and Communication, Hunan University of Technology, Zhuzhou, China;[Yang, Gelan] Department of Computer Science, Hunan City University, Yiyang, China
期刊：
The Journal of Information and Computational Science,2011年8(14):3171-3179 ISSN：1548-7741
通讯作者：
Tan, Y.(tanyue7409@163.com)
作者机构：
[Tan, Yue] School of Communication and Electronic Engineering, Hunan City University, Yiyang, 413000, China;[Wu, Xuedong] School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212003, China;[Tan, Guanzheng; Tan, Yue] School of Information Science and Engineering, Central South University, Changsha, 410083, China
通讯机构：
School of Communication and Electronic Engineering, Hunan City University, China
关键词：
Best individual;Chaotic local search;Evolution algorithms (Eas);Genetic algorithm;Global optimization
作者：
Li, Youyun;Xiang, Ziquan;Xiang, Xuyu;Wang, Song
期刊：
Information Technology Journal,2010年9(8):1647-1652 ISSN：1812-5638
通讯作者：
Li, Y.
作者机构：
[Xiang, Ziquan; Li, Youyun] College of Mathematics and Computing Science, Changsha University of Science and Technology, Hunan, 410077, China;[Wang, Song] School of Mathematics and Statistics, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia;[Xiang, Xuyu] Department of Computer Science, Hunan City University, Hunan, 413000, China
通讯机构：
[Li, Y.] C;College of Mathematics and Computing Science, Changsha University of Science and Technology, China
关键词：
Algorithm for optimization;Effective diffusion coefficient;Gauss-Newton scheme
期刊：
The Journal of Information and Computational Science,2010年7(13):2681-2688 ISSN：1548-7741
通讯作者：
Yang, G.(glyang@mail.ustc.edu.cn)
作者机构：
[Yang, Gelan] Department of Computer Science, Hunan City University, Yiyang 413000, China;[Yang, Gang] Department of Power and Energy Systems, Ecole Supé,rieur d'Electricit(Supé,lec), Gif-sur-Yvette Cedex, France;[Jin, Huixia] Department of Physics and Telecom Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
Department of Computer Science, Hunan City University, China
摘要：
According to the characters of RNA secondary structure, we introduce a method for RNA secondary structure alignment by changing the structure alignment to sequence alignment based on a binary coding method. Associating with the proposed coding rules and exclusive-OR operation, we can solve the following problems easily: (i) distinguishing the difference between two sequences; (ii) judging the prefix of a sequence matches the suffix of the other sequence; (iii) judging two sequences have common subsequences; (iv) judging a sequence is the subsequence of another sequence.
期刊：
Applied Mechanics and Materials,2010年29-32:566-570 ISSN：1660-9336
通讯作者：
Wan Xiaojun
作者机构：
[Wan Xiaojun] Hunan City Univ, Dept Comp Sci, Changsha, Peoples R China.;[Jin Huixia] Hunan City Univ, Dept Phys & Telecom Engn, Changsha, Peoples R China.
通讯机构：
[Wan Xiaojun] H;Hunan City Univ, Dept Comp Sci, Changsha, Peoples R China.
会议名称：
International Conference on Applied Mechanics and Mechanical Engineering
会议时间：
SEP 08-09, 2010
会议地点：
Changsha, PEOPLES R CHINA
会议主办单位：
[Wan Xiaojun] Hunan City Univ, Dept Comp Sci, Changsha, Peoples R China.^[Jin Huixia] Hunan City Univ, Dept Phys & Telecom Engn, Changsha, Peoples R China.
会议论文集名称：
Applied Mechanics and Materials
关键词：
Characteristics of Luminescent;Microstructure;Porous Silicon (PS);Sonic Vacating-Method
摘要：
The special physicochemical environment caused by sonic-vacating provides an important outlet for the preparation of highly efficient luminescent porous silicon films. Experimental results show that sonic chemical treatment is an effective technology for the improvement of the microstructure of porous silicon, and the luminescent efficiency and stability thereof. Luminescent porous silicon films, prepared by ultrasonic enhanced anode electrochemical etching, display better qualities than the samples prepared by conventional methods widely used at present. This ultrasonic chemical effect roots in sonic vacating, i.e. the generation, formation and rapid collapse of bubbles in the etching solution. In the process of the porous silicon being etched, the escape rate and caving-in of hydrogen bubbles in the pores is increased as a result of the work of the ultrasonic waves, which is helpful to the vertical etching of the pores.
期刊：
Lecture Notes in Electrical Engineering,2010年56:127-134 ISSN：1876-1100
通讯作者：
Jiang, J.(johnjjs@sina.com)
作者机构：
[Jiang, Jiansheng] Faculty of Mechanical and Electronic Engineering, China University of Petroleum Beijing, PRC. No.18, Fuxue Road, Changping Zone, Beijing 102249, China;[Jin, Huixia] Department of Physics and Telecom Engineering, Hunan City University, Yiyang 413008, China;[Shu, Wanneng] College of Computer Science, South-Central University for Nationalities, Wuhan 430074, China
作者机构：
[高攀; 周文芳; 柳清菊; 吴晶] Yunnan Key Laboratory of Nanomaterials and Technology, Yunnan University, Kunming 650091, China;[张学军] Department of Physics and Electric Information Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
[Liu, QJ ] ;Yunnan Key Laboratory of Nanomaterials and Technology, Yunnan University, China
关键词：
TiO_2;N+Yb-doped;first-principle
摘要：
Crystal structures, electronic structures and optical properties of nitrogen and ytterbium doping anatase TiO_2 were calculated by first principles with the plane-wave ultrasoft pseudopotential method based on the density functional theory. The calculated results show that the octahedral dipole moments in TiO_2 increase due to the changes in lattice parameters, bond length and charges on atoms, which is very effective for the separation of photoexcited electron-hole pairs and the improvement of the photocatalytic activity of TiO_2. The interband transition between OP_π states and Yb4f states make nitrogen and ytterbium doped TiO_2 manifest greater absorption coefficients in the visible-light region.
会议名称：
International Conference on Mechanical Engineering and Green Manufacturing (MEGM) 2010
会议时间：
NOV 19-22, 2010
会议地点：
Xiangtan, PEOPLES R CHINA
会议主办单位：
[Huang Jusheng;Liu Jun'an;Tan Lixin] Hunan Inst Engn, Dept Mech Eng, Xiangtan 411101, Peoples R China.^[Tu Li] Hunan City Univ, Dept Comp Sci, Yiyang 413000, Peoples R China.^[Qu Xilong] S China Univ Technol, Sch Comp Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
关键词：
CAN-bus;Control networks of construction engine;ECU unit
摘要：
Taking construction crane for example, this thesis builds a reliable, controllable and easy-to-exploiting CAN-bus application network on the basis of iCAN series functional module and CAN-bus interface card of ZLG system, and it explores the methods of rapid allocation in control networks of construction engine. With CAN-bus controlling devices to guide all signals of sensors and output dates, this system is easily constructing and conveniently stalling. Meanwhile, this system has a good anti-inference ability, a high reliability and a good real-time response. The application of CAN-bus enables lifting moment restriction system to act as a subsystem embedded in other engineering control systems. The construction of this system has an important reference in explore a new generation of engineering control system.
作者机构：
[欧阳竞成; 林亚平; 张建明] College of Computer and Communication, Hu'nan University, Changsha 410082, China;[林亚平; 周四望] College of Software, Hu'nan University, Changsha 410082, China;[张建明] Department of Computer Science, Hu'nan City University, Yiyang 413000, China
通讯机构：
College of Computer and Communication, Hu'nan University, China
