Kuai Xingcheng Department of Engineering Mechanics
Abstract:In this paper, the static equations of the tube structure in superhigh buildings is analyzed by finite strip method. The lateral rigid matrix is obtained by means of the static reduction technique first. Then the mass of structure is concentrated equivale
Yan Yifan Department of Applied Physics
Abstract:In this paper we have proved:(1) For the arbitrary continuous gap state density distribution of a-Si,the Poisson's Equation in the Space charge region is always solvable analytically, if we have adopted the mean-value theorem for Riemann-Stieltjes integra
Shen Kangcun Department of Applied Physics
Abstract:This paper points out and corrects an error in the derivation of exact solution for two-dimensional Ising model in reference [2].
Zhu Juan Fang DingFei Department of Computer Science
Abstract:In this paper, a simulation model of system with random input signals is built. By using this model, we may carry out computer simulation for the output signals of sensor it is applied to weighing vechicles in motion. This technique has great economic ben
Zhang Dafang Department of Computer Science
Abstract:This paper presents a fuzzy fault and diagnosis model based on PMC graph model with the method combining fuzzy set and graph theory, and discusses how to set up the membership function of important degree and fault for each unit. Criteria for onestep and
Huang Hongwu Tan Zhenwu Department of Mechanical Engineering
Abstract:Based on the "Circumflexion-Model" and by using "PlanePrinciple"to transform 3D problem into 2D problem.We have in this paper introduced a new and practical method for constructing the detail structure of the parts with complicated surfaces. The method ha
Yi Wenzhi Li Lili Department of Mechanical Engineering Chen Ronghe Zeng Xuejian works
Abstract:In this research the failure forms of the tank track pins are investigated and the heat treating regime of the pins is redesigned and optimized provided that the material and technical specification of the pins remain unchanged. As a result of use of a ne
Li Meilin Department of Mechanical Engineering
Abstract:In this paper, by taking the frequency charactristics of sound attenuation required by the exhaust noise of internal cambustion engines as the design basis, we discuss the design of compound mufflers with expansion chamber and with perforated tube. The te
Zhu Guanghan Yu Dejie Vibration Experiment & Research Center
Abstract:In this paper a substructure synthesis method for systems with structural damping is presented. The method is especially suitable for structure synthesis under circumstances that the degrees of freedom of connection interfaces of substructures are few. An
Hong Fanwen Department of Civil Engineering
Abstract:in this paper, we discuss the condition of deformation compatibility for the joining part of bar and plate of a plane assembly structure. By means of contragradient transformation a method of constructing transition element satisfying the condition is pre
Chui Daobi Department of Mechanical Engineering
Abstract:This paper deals with creep deformation and stresses of a spherical pot under high temperature and uniform internal pressure. Based on the conditions of plasticity and the data of creep test in the case of uniaxial stretch, the theoretical formulae of str
Yang Guifa Feng Yaping Kang Zhendong Department of Chemisty , ChemicaI Engineering
Abstract:Te colour reaction of TNT-Na_2SO_3-CPC system and its application are reported. On the basis of tests a spectrophotometric method for determination of TNT in explosive has been established.
Jiang Zhongjin Wang Jihui Department of Chemistry , Chemical Engineering
Abstract:In this paper a new technique is proposed for removing SO_2 emitted in sulfuric acid production and concentrating the boron minerals by using Xiang boron minerals in low tenor. Examined are the technological conditions for desulfurization and boron concen
Yu Jianshe Department of Applied Mathematics
Abstract:Som criteria on the asymptotic behavior (such as boundness,tending to zero) of solutions for a kind of third order delay functional differential equation are established.
Jian Huaiyu Department of Applied Mathematics
Abstract:In this paper we prove that if u is a weak solution of some kind of nonlinear partial differential systems of 2kth order which satisfies the usual ellipticity condition only at infinity, then u has (k-1)th lipschitz continuous derivatives.
Zou Xingfu Department of Applied Mathematics
Abstract:本文在对系数和偏差不加任何限制的情况下证明了方程(1)振动的充要条件是其特征方程(2)无实根,从而推广了[1]~[4]的工作.
Yang Xiaoping Department of Appled Mathematics
Abstract:In this Paper, the nonlinear pseudoparabolic obstacle problem (1) is considered. With the Galerkin approximation, we proved uniqueness of strong solution and existence of the weak maximum solution and strong solution.
Zhang Jieheng Department of Applied Mathematics
Abstract:本文首先证明了边缘分布不能决定联合分布这个基本事实.然后证明了若一维分布F(x)和G(y)的方差非零且有限,则一切以它们为边缘分布的随机向量(x, y)的相关系数组成的集合是闭区间〔a, b〕,-1≤a