Fang Zhi Department of Civil Engineering
Abstract:Based on the basic differential equations of rod element, and appropriately simplifying the stiffness distribution the lateral deformation curve of R.C. columns subjected to eccentric compression has been derived.Nonlinear full range of R.C. columns subje
Zuo Chen Zhou Youqing Nie Guangqian Department of Electrical Engineering
Abstract:In this paper,the features,magnetic shield measures,steady and transient characteristics of large current CT are described. The principles of CT selecting types for differential protection are also discussed.
Xu Mingbeng Department of Electrical Engineering
Abstract:This paper is a part of the researches on the relationship between the major econnomic and technical indexes and the cost of the large asynchronous machine.Based on the theory of the three-phase asynchronous machine,the relationship between per unit maxim
Wang Liren Huang Renda Chen Maochun Department of Mechanical Engineering
Abstract:The sliding friction and wear behaviors of ADI have been tested in this work.The results have shown that ADI possesses better wear resistance than 40Cr steel and some other alloy materials.The observations using scaning electron microscope and X-ray diffr
Cao Zhengquan Chen Huarong Department of Mechanical Engineering
Abstract:In this paper,a new idea of grinding spiral drill point using principle of variable pitch is conserved on the basis of previous grinding method. A mathematical model for variable pitch spiral drill point is established. The principle and the influence of
Yi Deming Chen Hongjian Yang Shouzhang Wang Mingwei Department of Mechanical Engineering
Abstract:In this paper,we study the structural characteristics of a kind of new solid carbide end mill.Several experiments have been done about the cutting ability, machining efficiency,surface roughness of machined groove and so on for this kind of end mill.The e
Xia Zongyu Li Xueqian Gao Xianshan Zhou jianguo Li Jianming Department of Mechanical Engineering
Abstract:The remarkable combination of strength,ductility and wear resistance can be obtained in austempered ductile irons (ADI). In this paper,the experimental resuits at the application of ADI for gears in walking tractor's gear box to replace 20CrMnTi carburize
Hong Yi Fang Hongyi Department of Electrical Engineering
Abstract:We discuss in this paper the evaluation of television picture.Our conclusion is that the television image noise is mainly a stationary ergodic process.Based on it a new method on noise measurement of tetevision picture is proposed and objective evaluation
Yang Peiqi Department of Electrcal Engineering
Abstract:A novel active phase compensated differential integrator is given. The proposed network does not require matched operational amplifiers. The circuit may be tuned to realize a phase lead differential integrator. Stability analysis based on the two pole mod
Xie Dongqing Department of Computer Science
Abstract:The concepts of efficient computation and partially efficient computation are introduced and used to define two criterias of security for public key cryptosystem. The relation of these criteria to others is discussed. Finally we proved that any determinis
Wang Jihui Department of Environmental Engineering
Abstract:A technology of conversion treatment of wastewater containing H_2SO_4 and As by Fes was presented in the light of actual conditions of H_2SO_4 production. Through the two-stage treatment of conversion-neutralization or neutralization-conversion, concentra
Zhao Jianghong Tang Long Department of Industrial Design
Abstract:The aim of this research was to evaluate a passenger seat of a new type bus in terms of eomfort. A fuzzy set model of multistage comfort scale (MCS) was adopted to the assessment of comfort, together with the techniques of human backshape and EMG measures
Sheng Xiaomou Wang Billian Department of Economics , Management Engineering
Abstract:Based on the Friedman's theory of money demand, the model of money demand at home is discussed using the methods of systems identification. The Clarke model of money demand at home is built. According to the model, the characteristics of money demand at h
Chen Yeping Department of Economic , management Engineering
Abstract:Based on the state of the chemical industries and the demands of foreign trade of Hunan Province,the strategic target of promoting the export is proposed and the mathematical model of predicting the export tendency is built.Then the prediction to developm
Zhong Zhenghua Luo Jianhui Department of Engineering Mechanics
Abstract:This paper presents a computation method for filament wound pressurevessel. We have obtained the asymptotic solution for the problem.Numetical calculation shows that the result of asymptotic solution agrees with experiment and spline cllocation technique
Qian Xiangzheng Huang Lihong Department of Applied Mathematics
Abstract:This paper is devoted to the study of the existence and uniqueness of non-zero-homotopic closed orbits of a class of dynamic system on the torus.Some sufficient conditions for the existence,uniqueness and nonexistence of non-zero-homotopic closed orbits o
Chu Yuming Department of Applied Mathematics
Abstract:In this paper,we have proved a sufficient condition for that a simply connected domain D is a quasidisk,improved a John constant of the bounded uniform domain being John domain,and studied the quasihyperbolie boundary condition domain.
