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Asian Agricultural Research 2011年第4期3卷 70-71,82页

作者： QI Xue-xiang school of Public Administration,Sichuan University,Chengdu 600061,china school of Public Administration Sichuan University

Theoretical expositions of public goods supply by the liberalism,new institutionalism and the school of public choice are conducted in the perspective of organizational *** the theoretical foundation of rural public goods is put ***,the changes of the supply mode of rural public goods are discussed before and after the tax reform,that is,the "Community Cooperation" supply mode of rural public goods before the tax reform and the "Organization Cooperation" supply mode of rural public goods after the tax ***,the diversification of rural public goods supply in china in future is forecasted.

关键词： Rural public goods Organizational competition Mode

IMPROVED HOMOTOPY ITERATION METHOD AND APPLIED TO THE NINE-POINT PATH SYNTHESIS PRObLEM FOR FOUR-bAR LINKAGES

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Chinese Journal of Mechanical Engineering 2000年第1期13卷 10-16页

作者： Zhang Jian Chen Yong (school of Mechanical Engineering, Southwest Jiaotong University) 西南交通大学四川成都

A new algorithm called homotopy iteration method based on the homotopy function is studied and improved. by the improved homotopy iteration method, Polynomial systems with high Order and deficient can be solved fast and efficiently comparing to the original homotopy iteration method. Numerical examples for the ninepoint path synthesis of four-bar linkages show the advantages and efficiency of the improved homotopy iteration method.

关键词： Homotopy function Homotopy iteration method Nine-point path synthesis Four-bar linkage

Construction of an Online Crisis Decision Support System

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Construction of an Online Crisis Decision Support System

基于CFD电涡流缓速器转子盘叶片结构参数影响分析

2010 IEEE 2nd Symposium on Web Society

作者： Xianghui Shi~(a*),bibing Dai~(b,c),Liping Li~d,Xiangchen Li~e,Mi Shi~(b,c) a,Equipment Support Department of the Secondary Artillery Petty Officer school,Qingzhou,china b,Graduate school,Chinese Academy of Sciences,beijing,china c,Institute of Psychology,Chinese Academy of Sciences,beijing,china d,Xingan Primary school,Xingan Street,Anqiu,china e,The Third Institute of the Second Artillery Academy,PLA,beijing,china

＜正＞Online crisis decision support system（CDSS） plays an important role in the process of preventing *** also provides a variety of information resources（such as data,models,knowledge,technology of maintain and repair）,in addition,CDSS can also be used as an analysis tool to help individuals or groups under disasters to do prevention and mitigation with a high- level and high-quality ***, building an online CDSS is important to deal with the complex and important disaster in *** the main purpose of this paper is to present how the online CDSS works for disaster prevention,and to deeply study decision-making theory of disasters under virtual ***,it would provide an important theoretical guidance for further study.

关键词： Decision support systems crisis decisionmaking Human-computer interaction Maintain and Repair

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系统仿真学报 2008年第21期20卷 5993-5998页

作者：刘成晔何仁江苏技术师范学院汽车工程学院常州213001 江苏大学汽车与交通工程学院镇江212013

通过改变叶片数量、进口安装角、出口安装角等结构参数建立了9个计算模型,并采用RNG Κ-ε双方程模型进行数值分析,研究各结构参数对叶片内外流场、气流通量、转子盘散热量、叶片压力面和吸力面静态压力的影响,结果表明:在进行转子盘叶... 详细信息

通过改变叶片数量、进口安装角、出口安装角等结构参数建立了9个计算模型,并采用RNG Κ-ε双方程模型进行数值分析,研究各结构参数对叶片内外流场、气流通量、转子盘散热量、叶片压力面和吸力面静态压力的影响,结果表明:在进行转子盘叶片设计时应优先考虑减小进口安装角或出口安装角;在保证转子盘强度的情况下可以减小叶片厚度增加叶片数量,提高叶片散热表面积;上述方法均可有效提高转子盘的散热通量。

关键词：汽车电涡流缓速器转子盘结构参数影响分析

FORMING PRINCIPLE OF TWO SIDE-DIRECTION bURR AND IT'S PREDICTION IN METAL CUTTING

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Chinese Journal of Mechanical Engineering 2001年第4期14卷 300-304页

作者： Wang Guicheng (school of Machinery Engineering,Jiangsu University of Science and Technology) 江苏理工大学江苏

The burr is one of the common phenomena occurring i n metal cutting operations The mathematical mechanical model of two side dir ection burr formation and transformation is established with plane stress strain theory,based on the orthogonal cutting The main laws of formation and change of the burr are revealed,and it is confirmed by experiment result,which first realizes prediction of the forming and changing of the two side direction burr in metal cutting operation.

关键词： Metal cutting Two side direction burr Mathe matical mechanical model Prediction Precision and ultraprecision machining

High Temperature Oxidation behavior of Nitride bonded SiC based Refractories

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china's Refractories 2012年第1期21卷 31-35页

作者： WANG Li1,2,JIANG Mingxue1 1 school of Materials Science and Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,china 2 Sinosteel Refractory Co. ,Ltd. ,Luoyang 471039,china school of Materials Science and Engineering Xi'an University of Architecture and Technology Xi'an 710055 China Sinosteel Refractory Co. Ltd Luoyang 471039 China

High temperature oxidation behavior of two kinds of nitride bonded SiC based refractories wtls bwestigated at I 100-1 .500℃ by means of X-ray di[fractometer, scanning electronic microscopy and thermogravimetry. The results show that ：（1） with the temperature im＇reasing, the oxidation mass increment rote of the specimen *** and then. decreases, and oxidation passi＇va tion occttrs; （2） the oxidation resistance of SiAION bonded SiC refractories is superior to that of Si3N4 botlded SiC refractories ; （3） high temperature oxidtttion resuits itt the increase of compressive strength at room temperature of SiC based refractoviesiaes comlmred with specimen before oxidatiotl; the compressive strength of SIMON bonded SiC specimens oxidized at high temperatures decreases with the increase of the temperature as a result of formation amt burst of surfhce bubble, while the decrease of compressive strength of Sign4 bonded SiC specimens oxidized at high temperatures is owitng to the bwrease of the consistency of netlike crack assoeiated with cristobalite transfornuttion during cooling.

关键词： silicon carbide based refractories oxidalion hehavior bonding phase SiAION silicon nitride

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美国纽约市的学习型社区建设透析

外国教育研究 2007年第8期34卷 71-75页

作者：张媛华东师范大学教育学系上海200062

随着终身教育、学习社会、终身学习等教育理念在全球的风靡,如何实现由理论到实践的转换成为各国进一步关注的焦点。而社区作为不同地域人们生活的基本单位,学习型社区的实现成为国家范围内建成学习社会的必由之路。纽约作为国际化大都... 详细信息

随着终身教育、学习社会、终身学习等教育理念在全球的风靡,如何实现由理论到实践的转换成为各国进一步关注的焦点。而社区作为不同地域人们生活的基本单位,学习型社区的实现成为国家范围内建成学习社会的必由之路。纽约作为国际化大都市的典型,在充分利用社区资源、组织多样化的教育活动、改善社区教育管理等方面均凸显出自身特色,因此可为我国城市社区建设提供良好的借鉴。

关键词：美国纽约市学习型社区社区学院社区图书馆社区矫正

SOME bOUNDARY INCREASING PROPERTIES OF HARMONIC FUNCTIONS IN LIPSCHITZ DOMAIN

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Chinese Annals of Mathematics,Series b 1996年第2期17卷 159-166页

作者： ZHANG YIPING Department of Mathematics, Wuhan University, Wuhan 430072, china.Project supported by the National Natural Science Foundation of china. WUHAN UNIV DEPT MATH WUHAN 430072 PEOPLES R CHINA

The object of this paper is to study the non-tangential increasing properties of positiveharmonic function u in Lipschitz domain by means of Martin representation theory. A necessaryand sufficient condition of the control of growth of u near any fixed boundary point is obtained.It is shown that the non-tangential increasing degree of u near a boundary point is exactlythe local degree of its representation measure with respect to the harmonic measure. Someexamples are given.

关键词： Martin representation Harmonic function Harmonic measure

A NONHYDROSTATIC NUMERICAL MODEL FOR DENSITY STRATIFIED FLOW AND ITS APPLICATIONS

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Journal of Hydrodynamics 2008年第6期20卷 706-712页

作者： LI Qun XU Zhao-ting Polar Research Institute of china （PRIC） Shanghai 200136 China Physical oceanography Institute Ocean University of China Qingdao 266100 China

A modular numerical model was developed for simulating density-stratified flow in domains with irregular bottom topography. The model was designed for examining interactions between stratified flow and topography, e.g,, tidally driven flow over two-dimensional sills or internal solitary waves propagating over a shoaling bed. The model was based on the non-hydrostatic vorticity-stream function equations for a continuously stratified fluid in a rotating frame. A self-adaptive grid was adopted in the vertical coordinate, the Alternative Direction Implicit （ADI） scheme was used for the time marching equations while the Poisson equation for stream-function was solved based on the Successive Over Relaxation （SOR） iteration with the Chebyshev acceleration. The numerical techniques were described and three applications of the model were presented.

关键词： nonhydrostatic assumption stratified flow self-adaptive grid nonlinear internal wave