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Matching Strategies and Fuzzy URLs in Web Based Component Retrieving

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 283-287页

作者： Wang Ying 1.2 , Sang Da yong 2, 3.1. {1. of Management, Xi’an Jiaotong University, Xi’an 71.049,China 2.{1. of engineering, Air Force University of engineering, Xi’an 71.03.,China 3. State Key Laboratory of Software engineering, Wu college of Management Xi’an Jiaotong University Xi’an China college of {1. Air Force University of Engineering Xi’an China State Key Laboratory of Software engineering Wuhan University Wuhan China

The World Wide Web (WWW) has greatly changed the way of component based software reuse, for large number of components provided by different vendors become available and it's rather difficult to find and choose what we in fact need. To make large amount of the components collaborate, an information exchanging model is essential. In order to retrieve and search the suitable or usable components more effectively, some techniques should be taken into account. Among these techniques, matching strategies and fuzzy URL semantics are significant for the former help us to find components which could be reused and the other both to broaden the searching areas and use some uncertain information to make the searching more purposive. A brief discuss on an abstract component model (UACModel) is begun, which was proposed to promote the interoperability and information exchange among various reusable component libraries (RCLs), and a framework for component retrieval. Then the emphases are put on some matching strategies, especially incomplete ones that encourage reuse through component customization, and fuzzy URL extensions to be supported and realized.

关键词： component reuse interoperability model component retrieval index repository reusable component library (RCL)

Tensile and compression properties of Zr-based bulk amorphous alloy at different temperatures

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Science China(Technological Sciences) 2005年第5期48卷 489-495页

作者： WANG Xu1.3. LOU Decheng1. GAO Zhanjun4, LIU Lei1. LIANG Hongmei1. WANG Qingfeng1. LI Qiang1.3.& MA Mingzhen1.2 1. Key Laboratory of Metastable Materials Science & Technology of Hebei, Yanshan University, Qinhuangdao 066004, China 2. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 1.0001. China 3. college of {1. engineering, Yanshan University, Qinhuangdao 066004, China 4. Chinese Academy of engineering, Beijing 1.003., China 1. Key Laboratory of Metastable Materials Science & Technology of Hebei Yanshan University 066004 Qinhuangdao China 2. college of {1. engineering Yanshan University 066004 Qinhuangdao China 3. Chinese Academy of {1. 100038 Beijing China 4. National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of Technology 150001 Harbin China

mechanical properties of the Zr41.i1.Cu1..5Ni1.Be22.5 bulk amorphous alloy at different temperatures were investigated. The compression test was carried out on a Gleebe-{1.00 machine at {1.5 and {1.5°C, respectively, in the supercooled liquid region. It is shown that decreasing the compressive rate and increasing temperature have a similar influence trend on the compressive behavior of the bulk amorphous alloy. Room and low temperature tensile strengths were tested on the Instron materials testing system. At low temperature, the tensile strength decreased with decreasing of the testing temperature. Hardness measurement indicated that below the glass transition temperature, the hardness decreased with increasing of the annealing temperature and duration time. It, however, increased when the annealing treatment was performed above the glass transition temperature.

关键词： Zr41.i1.Cu1..5Ni1.Be22.5 bulk amorphous alloy, mechanical properties, compressive deformation.

Studies on the analytical potential energy function of diatomic molecular ion XY^+ using variational method

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Science China(Physics,Mechanics & Astronomy) 2004年第2期47卷 154-164页

作者： LIU Guoyue1.3. SUN Weiguo1.2 & FENG Hao1.1. Institute of Physics, Sichuan University, Chengdu 61.065, China 2. {1. of Chemical {1., Sichuan University, Chengdu 61.065, China 3. Mianyang Teacher抯 {1., Mianyang 621.00, China Correspondence should be addressed to Sun Weiguo (e-mail: weiguosun@*** or guoyueliu@ ***) 1. Institute of Physics Sichuan University 610065 Chengdu China 2. Mianyang Teacher's college 621000 Mianyang China 3. {1. of Chemical {1. Sichuan University 610065 Chengdu China

A new analytical potential energy function for diatomic molecular ion XY+ is proposed based on the energy consistent method (ECM). The Coulomb potential included in the new ionic potential contains multipole corrections, converges quickly and is variationally, changeable. The new potential and the ECM are applied to variationally studying the potential energies of eight electronic states of several diatomic molecular ions: the A2π state of CO+, the X2∑ g + state of Li 2 + , the X2∑ g + state of He 2 + , the 1.∏u state of Na 2 + , the A2∏u state of N 2 + , the X1.+ state of KrH+, the X2∑+ state of SiO+ and the A2π state of SO+ ion. The present results agree excellently with the experiment-based Rydberg-Klein-Rees (RKR) potentials, and are superior to the commonly used Huxley-Murrell-Sorbie (HMS) analytical potentials, and are better in some cases than some quantum mechanicalab initio potentials in the ionic asymptotic and dissociation regions.

关键词： potential energy, diatomic ion, electronic state, variational method.

Boundary conditions for the bending of a piezoelectric beam

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Science China(Physics,Mechanics & Astronomy) 2008年第7期51卷 847-856页

作者： GAO Yang1. XU SiPeng2 & ZHAO BaoSheng3.1.{1. of Science, China Agricultural University, Beijing 1.0083. China 2 {1. of engineering, Ocean University of China, Qingdao 266071. China 3.School of {3. engineering, University of Science and Technology Liaoning, Anshan 1.4044, China 1. college of Science China Agricultural University Beijing 100083 China 2. college of {1. Ocean University of China Qingdao 266071 China 3. School of {1. {1. University of Science and Technology Liaoning Anshan 114044 China

For beam bending in transversely isotropic piezoelectric media, the reciprocal theorem and the general solution of piezoelasticity are applied in a novel way to obtain the appropriate stress and mixed boundary conditions accurate to all orders for the beam of general edge geometry and loadings. By generalizing the method developed by Gregory and Wan, a set of necessary conditions on the edge-data for the existence of a rapidly decaying solution is established. The prescribed edge-data of the beam must satisfy these conditions in order that they could generate a decaying state within the beam. When stress and mixed conditions are imposed on the beam edge, these decaying state conditions for the case of bending deformation of piezoelectric beam are derived explicitly. They are then used for the correct formulation of boundary conditions for the beam theory solution (or the interior solution). Besides, an analytical solution of elastic beam is formulated to verify validity of our boundary conditions. For the stress data, our boundary conditions coincide with those obtained in conventional forms of beam theories. More importantly, the appropriate boundary conditions with two sets of mixed edge-data are obtained for the first time.

关键词： boundary conditions beam bending piezoelectric media decaying states regular states

Mixed boundary conditions for piezoelectric plates

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Science China(Physics,Mechanics & Astronomy) 2009年第5期52卷 755-761页

作者： GAO Yang 1.,XU SiPeng 2 &ZHAO BaoSheng 3.1.1. of Science,China Agricultural University,Beijing 1.0083.China 2{1. of engineering,Ocean University of China,Qingdao 266071.China 3.School of {3. engineering,University of Science and Technology of Liaoning,Anshan 1.4044,China college of Science China Agricultural University Beijing 100083 China college of {1. Ocean University of China Qingdao 266071 China School of mechanical {1. University of Science and Technology of Liaoning Anshan 114044 China

For plate bending and stretching problems in piezoelectric materials,the reciprocal theorem and the general solution of piezoelasticity are applied in a novel way to obtain the appropriate mixed boundary conditions accurate to all order.A decay analysis technique is used to establish necessary conditions that the prescribed data on the edge of the plate must satisfy in order that it should generate a decaying state within the *** the case of axisymmetric bending and stretching of a circular plate,these decaying state conditions are obtained explicitly for the first time when the mixed conditions are imposed on the plate *** are then used for the correct formulation of boundary conditions for the interior solution.

关键词： boundary conditions piezoelectric plates mixed data bending problems stretching problems

Sintering technology for micro heat pipe with sintered wick

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Journal of Central South University 2010年第1期17卷 102-109页

作者：李西兵汤勇李勇周述璋曾志新 Department of mechanical and Power {1. Harbin University of Science and Technology School of mechanical {1. Qiqihar University School of mechanical and Automotive {1. South China University of Technology

In order to study reasonable sintering technological parameters and appropriate copper powder size range of micro heat pipe (MHP) with the sintered wick, the forming principle of copper powders in wicks and MHP's heat transfer capabilities were first analyzed, then copper powders with different cell sizes and dispersions were sintered in RXL-1.-1. resistance furnace under the protection of the hydrogen at different sintering temperatures for different durations of sintering time, and finally the sintered wicks' scanning electron microscope (SEM) images and their heat transfer capabilities were analyzed. The results indicate that the wick sintered with copper powders of larger cell size or smaller size range has better sintering properties and larger heat transfer capabilities; and that the increase of either sintering temperatures or sintering time also helps to improve the wick's sintering properties and heat transfer capabilities, and the former affects more obviously than the latter. Considering both its manufacturing cost and performance requirements, it is recommended that copper powders with the size range of 1.0-1.0 μm are sintered at 900-950℃ for 3.-60 min in practical manufacturing. In addition, two approaches to improve wick's porosity are also proposed through theoretical analysis, which suggests that the larger the wick's porosity, the better the heat transfer capabilities of the MHP.

关键词： micro heat pipe copper powders wick forming principle

Spatiotemporal model of open-pit based on 3.D deposit model

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中国有色金属学会会刊：英文版 2011年第S3期21卷 616-620页

作者： XIA Chun-lin1. ZHOU Hui1. LI Qing-yuan2, MA Zhen-li3.1. School of Geomatics, Liaoning Technical University, Fuxin 1.3.00, China 2. State Key Laboratory for GIS engineering, Chinese Academy of Surveying and Mapping, Beijing 1.083., China 3. Yinchuan {1., China University of Mining and Technology, Yinchuan 75001., China [a] School of Geomatics Liaoning Technical University Fuxin 123000 China [b] State Key Laboratory for GIS engineering Chinese Academy of Surveying and Mapping Beijing 100830 China [c] Yinchuan college China University of Mining and Technology Yinchuan 750011 China

A new method was put forward to make up the three-dimensional deposit model, and the spatiotemporal models of open-pit with temporal dynamics were also studied combined with the corrected models of multilevel ground states so as to bring the three-dimensional open-pit model at different time and its model serial formed from the evolvement into the management of temporal dimension in order to realize the spatial three-dimension and temporal dynamic for the mining management in open-pits,which makes this model easy to query and analyze 3.D information, also help surface mining replaying and stope evolution forecasting. Finally, the time-spatial model was established to show the dynamic mining on some open-pit under the windows XP and VC++ environment.

关键词： 3. model of deposit three-dimensional model mixed model temporal model open-pit

Vision navigation algorithm for mine agent based on quaternion

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中国有色金属学会会刊：英文版 2011年第S3期21卷 610-615页

作者： LI Ke-zhao1. 4, LEI Wei-wei1. 2, GUO Zeng-zhang1. 2, WU Li-xin3. ZHANG Qin4 1. School of Survey and Land Information {1., Henan Polytechnic University, Jiaozuo 454003. China 2. Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping, Henan Polytechnic University, Jiaozuo 454003. China 3. {1. of Resources and Civil {1., Northeastern University, Shenyang 1.081., China 4. {1. of Geology {1. and Geomatics, Chang’an University, Xi’an 71.054, China [a] School of Survey and Land Information engineering Henan Polytechnic University Jiaozuo 454003 China [b] Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping Henan Polytechnic University Jiaozuo 454003 China [c] college of Resources and Civil {1. Northeastern University Shenyang 110819 China [d] college of Geology {1. and Geomatics Chang'an University Xi'an 710054 China

Autonomous relative navigation is the key technology in mining or rescuing. On the basis of mine requirement and the theories of machine vision, an autonomous relative navigation algorithm for mine agent based on quaternion was proposed. In rotation transformation, this algorithm was represented by using quaternion. Because the Jacobi matrix of this method is lower than that of Hall algorithm, the calculation efficiency is improved by using this algorithm. The results of these experiments show that the computation burden of this algorithm based on quaternion is about half that of Hall algorithm. This algorithm based on quaternion is improved as a valid way to solve the problem of mine real-time navigation.

关键词： quaternion mine agent vision navigation

Design and Research of the EQ61.5DTAA Diesel Engine

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厦门大学学报（自然科学版） 2002年第S1期41卷 225-226页

作者： CHEN Xu 1. CHEN Yong-guang 2, WU Hong-liang 3. RAN Ru- li 3.(1. mechanical {1. Institute, Chongqing Univ. Chongq ing 400044, China 2. Logistical {1. University, Chongqing 40001., China 3. Dongfeng Research Institute of Automobile {1.)

The EQ61.5DTAA diesel engine which first pattern en gi ne is EQD61.5T is developed through the original EQ61.2 diesel engine and other advanced engine structures. This paper analyses performance parameters, general layout and parts design process of the diesel engine. The development cycle is s horten by CAD/CAE/CAM technology. Through experiment, the general performance of the engine is in keeping ahead in our country. With boosting mid-cooling technology and related designing correction in EQ61.5 DTAA diesel engine, it had obtained better motivity and economy. The full load s teady smog emission and smog emission during simulated free accelerating are all meeting with GB1.761.6-93. GB3.47-1.99 limit requirement. The prototype had p assed reliability test and has reliable parts. It performance indexes are in the leading position in same diesel engine in China. The 1.0}working conditions gas pollute and particle discharging in this pro totype can meet the limit requirement of GB1.691.2001. phase I. The EQ61.5DTAA diesel engine parts has good generality with existing types, which lower down th e production cost.

关键词： diesel engine design performance experiment