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湖南大学学报（自然科学版） 2000年第S2期27卷 139-142页

作者： Yigang He Ming Zhou (school of Electrical and Information Engineering, Hunan university, 410082.{2.)

This paper presents a neural based algorithm to locate analog fault. It uses the characteristic of the category of BP networks to identify k faults of analog networks. This method trains the BP networks to general fau... 详细信息

关键词： Neural Networks Fault Diagnosis Circuit with Tolerancesl

Online multiple instance regression

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Chinese Physics B 2013年第9期22卷 656-661页

作者：王志岗赵增顺张长水 Department of Automation Tsinghua UniversityState Key Laboratory of Intelligent Technologie and SystemsTsinghua National Laboratory for Information Science and Technology College of Information and Electrical Engineering Shandong University of Science and Technology school of Control Science and Engineering Shandong University

The multiple instance regression problem has become a hot research topic recently. There are several approaches to the multiple instance regression problem, such as Salience, Citation KNN, and MI-ClusterRegress. All of these solutions work in batch mode during the training step. However, in practice, examples usually arrive in sequence. Therefore, the training step cannot be accomplished once. In this paper, an online multiple instance regression method ＂OnlineMIR＂ is proposed. OnlineMIR can not only predict the label of a new bag, but also update the current regression model with the latest arrived bag. The experimental results show that OnlineMIR achieves good performances on both synthetic and real data sets.

关键词： mutiple instance regression online learning

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SAR原始数据压缩的快速矢量量化器

系统工程与电子技术 2004年第10期26卷 1534-1536页

作者：赵宇鹏万锋雷宏中国科学院电子学研究所

回顾了矢量量化的各种快速算法,指出其在应用到SAR原始数据压缩中的局限性。为了将矢量量化应用到SAR原始数据实时压缩,提出一种基于查表的矢量量化器的设计方案,其中整合了其他的矢量量化算法。最后用各种快速算法以及BAQ算法进行了对... 详细信息

回顾了矢量量化的各种快速算法,指出其在应用到SAR原始数据压缩中的局限性。为了将矢量量化应用到SAR原始数据实时压缩,提出一种基于查表的矢量量化器的设计方案,其中整合了其他的矢量量化算法。最后用各种快速算法以及BAQ算法进行了对实际数据压缩的实验比较,证明本算法在不降低量化速度的基础上,提高了原始数据量化信噪比。

关键词：矢量量化合成孔径雷达原始数据压缩快速搜索算法

Thermoelectric properties of porous (Bi_(0.15)Sb_(0.85))_2.e_3 thermoelectric materials

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Journal of university of Science and Technology Beijing 2003年第5期10卷 39-43页

作者： Guiying Xu, Tingjie Chen, Jianqiang Liu, and Zhangjian ZhouLaboratory of Special Ceramics and Powder Metallurgy, Materials Science and Engineering school, university of Science and Technology Beijing, Beijing 100083,{2. Lab. of Special Ceramics Mat. Sci. and Eng. Sch. Univ. of Sci. and Technol. Beijing Beijing 100083 China

In order to obtain thermoelectric materials with high figure of merit, theconcept of Hollow (Vacuum) Quantum Structure or Effect and related thermoelectric materials designwere proposed. To demonstrate the theory, the materials of (Bi_(0.15)Sb_(0.85))_2.e_3 with porousstructure have been fabricated. Their thermoelectric properties and the microstructure wereinvestigated and compared with their density structure. It was found that the porous structure couldimprove their properties greatly.

关键词： thermoelectric materials Bi_xSb_(1-x) Bi_2.e_3 hollow quantum effect

Elastohydrodynamic Lubrication Studies on Effects of Crowning Value in Roller Bearings

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Journal of Shanghai university(English Edition) 2001年第1期5卷 76-81页

作者： CHEN Xiao yang, SHEN Xue jin school of Electromechanical Engineering and Automation, Shanghai university, Shanghai 2.0072.{2. XU Wen, MA Jia ju Department of Mechanical Engineering, Zhejiang university, Hangzhou 31002.,{2. school of Electromechanical Engineering and Automation Shanghai University Shanghai China Department of Mechanical Engineering Zhejiang University Hangzhou China

The purpose of this paper is to present a comparison of numerical calculations and experiment results of optical interferometry in finite line contact for the elastohydrodynamic lubrication(EHL) problem of Lundberg's profiled cylindrical roller under the conditions of flooded state, moderate load and material parameter. It shows clearly the effects of crowning value on the variations of oil film shape and thickness. The agreement between numerical analysis and experiment results is very good. The results indicate there must be an optimum crowning value that will induce the thickest and most even oil film in EHL state for a given working condition, and this value is larger than the design value in dry contact state for the same working conditions.

关键词： roller bearings crowning value elastohydrodynamic lubrication

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论市场规制法的基本原则

山西大学学报(哲学社会科学版) 2003年第3期26卷 46-51页

作者：王继军张钧山西大学法学院中国人民大学法学院山西太原030006 北京100871

市场规制法是市场经济发展所不可或缺的。文章在对当前我国有关市场规制法基本原则具有代表性的观点进行考察之后,着重论述了作者所界定的市场规制法三大基本原则,即国家干预适度原则、保护公平竞争原则以及社会公益原则。

关键词：市场规制法基本原则国家干预适度保护公平竞争社会公益

Mechanical Behavior of Tubular T-joint after Fire

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Journal of Shanghai Jiaotong university(Science) 2011年第1期16卷 97-104页

作者：靳猛赵金城常静刘明路 school of Naval Architecture Ocean and Civil EngineeringShanghai Jiaotong University Construction and Infrastructure Department Shandong Jiaotong University

This paper presents experimental results of the post-fire behavior of tubular *** research aims at the failure modes and the residual strengths of the T-joints after *** tests of full-scale tubular T-joints are *** first one is carried out to study the mechanical behavior of T-joints under ambient *** other two tests are performed to study the influence of pre-load,heating and cooling phase on residual load-bearing capacity of the tubular *** test results show that the sustained axial load on the brace has remarkable influence on the residual deflection of the T-joints which is cooled down to room *** results of the experiments also indicate that the axial load level and heating and cooling history have more significant effects on the compressive stiffness of the T-joints than the residual *** the numerical study,the result of finite element model agrees well with the test *** work in this paper provides a basis for further parametric analysis and theoretical study on the structural evaluation after fire.

关键词： T-joints post-fire residual strength numerical analysis

Finite Element Analysis of Reinforced Concrete Plate Impacted by Block

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Transactions of Tianjin university 2006年第B9期12卷 117-121页

作者： LUO Xiaoyang Pascal PERROTIN YAN Quansheng school of Traffic and Communications South China University of Technology Guangzhou 510641 China ESIGEC The University of SAVOIE France

A new concept of structurally dissipating rock-shed (SDR) was developed by the lab of Tonello IC and LOCIE-ESIGEC (France). To decide the dimension of the plate used in SDR, an ANSYS model which could simulate the impact of rock in the centre of the plate was established by Fabien Delhomme. By using this model, some finite element analyses are carried out in the present paper. Firstly, a plate impacted by a block is numerically simulated, the numerical results obtained from different mesh sizes are compared and the accuracy of the finite element model is verified. Then, the dynamic response of the plate impacted at the boundary and in the medium part is computed. By analyzing the stress in rebar, the most dangerous region of impact of plate was found. For a rectangular plate, the most dangerous region is at the corner of the plate when a block drops in. Finally, the whole deformation process of the plate under dropping block was simulated and a simplified definition (effect zone) to describe the deformation process in different positions of plate was given. From this study, it is found that the impact only affects heavily within the effect zone.

关键词： rock-sheds reinforced concrete plate impact ANSYS post-processing

SWOT Analysis of Agricultural Product Logistics Development——A Case Study of Shaanxi Province

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Asian Agricultural Research 2011年第12期3卷 32-34,38页

作者： WAN Yuan-yuan1, YAN Shu-rong2.1. Shaanxi College of Communication Technology, Xi’an 710018, china 2. school of Economics and Management, Chang’an {2., Xi’an 710064, china

SWOT method is used to analyze strengths and weaknesses in internal environment and opportunities and threats in external environment of development of agricultural product logistics in Shaanxi Province. The research indicates that the logistic development strategy of agricultural products in Shaanxi Province should bring into full play strengths in traffic, production, labor force, and science and technology. Besides, it is required to overcome weaknesses in information mechanism and management mode. Furthermore, we should take full advantage of domestic and international resources to develop famous, excellent and special products, to achieve high-efficient, rapid, and convenient development of logistics for agricultural products.

关键词： SWOT analysis Agricultural products Logistics deve