Abstract:This paper deals with the effect of axial compressive forces on the free vibration of bar system,plate and shell structures.The quantitative relationship is presented between axial compressive forces and the frequence of the m th modal shape which is
Abstract:An optimization method for determining the synchronous adhesive coefficients is presented.It can not only meet the compulsory requirements by the national standard of GB 7258 87,but also increase utilization ratios of adhesi
Abstract:We consider a kind of neutral difference equations.Several new sufficient conditions for the oscillation of all solutions of this equation are obtained .Our results have extended some existing results in the literature.
Abstract:We prove that LR estimator (Latent Root Estimator) is a nonlinear biased estimaor and obtain an important corollary.
Abstract:This paper first presents the characteristic function of matrix Beta distribution and then obtains the first two moments through matrix differentials.
Abstract:Based on Von Karman's equations for geometrially nonlinear problem of thin plates,this paper analyses the large deflection problem of rectangular thin plates under even load with weighted residual rate collocation method,and then solves the nonlinear eq
Jiang Zhongjin Wang Jihui Zhang Yuqing
Abstract:This paper studies the quantitative relationship between transverse mixed coefficient and hydraulic parameter,sets up the theoretical equation of transverse mixed coefficient.The calculated values and the values measured in the natural rivers coincide v
Zhong Zhenglin Zeng Guangming Yang Chunping Xie Gengxing
Abstract:Aimed at environmental impact risk assessment (EIRA),a risk assessment model of Markov chain is presented in this paper.The reliability of the model was demonstrated and the change tendency of environmental quality was revealed by means of an example .Thu
Abstract:In this paper, with sewage engineering properties, a new discrete optimization method of penalty function has been proposed to develop a working model for sewer system optimal design.A kind of hydraulic calculation approach in which entire control and loc
Huang Shasheng Tang He Zhong Weili Li Bifen
Abstract:The polymer film of 5,10,15,20_tetra (p_aminophenyl ) porphyrin was prepared on Pt electrode by potentiostat,galvanostat or cyclic voltammetry.A method of the metallization of this film was described.It was observed that the Co_PTAPP film showed electroca
Zeng Lingshan Liang Benxi Zhang Yaolong Tang Huiyao
Abstract:With electrochemistry and measuring method of corrosion weight loss,corrosion electrochemistry behaviour and adsorptive law of lauryl amide beet alkali(LABA) and lauryl 2_methyl beet alkali (L2_MBA) on carbon steel in sulphuric acid solution were studied.
Yang Changzhu Pu Wenhong Zhou Qionghua Zhang Jingdong Li Yuchun
Abstract:The corrosion inhibition of OP on 20 # carbon steel in 1.0 mol/L HCl solution was investigated with electrochemical techniques.The result showed that OP is an inhibitor of mixed controlling type,which decreases the cathodi
Li Su Huang Yuexin Zhu Yana Zhang Xu
Abstract:On the research of accelerated vehicle noise.the paper presented a prediction model of accelerated vehicle exterior noise.Accordingly,the accelerated vehicle exterior noise of Jiefang CA141 was analysized in theory and verifie
You Shihui Qin Qixiang Qin Jun
Abstract:General fluid smoothness condition is derived for the optimal design of fluid surface while a few typical streamline are analyzed projectively,the basis is provided for choosing current spline curve and spline surface in f
Yue Zhanghua Liu Xiangtao Jiang Ronghan
Abstract:It is very difficult to acquire the knowledge for the fault diagnosis of the electric power equipments because of the fuzzy and the stochastic uncertainty of the failure mechanism and the inadequacy of the failure data.B
Abstract:A dynamic network model is proposed for short term load forecasting.This model synthesizes the advantages of the time sequence method and the correlative method.Disposed dynamically and flexibly,the quantities representing dat
Cao Xiyao Li Jiabao Li Cunquan
Abstract:Based on the result derived from the 3D rod element program developed by Science Research Academy of China Building(i.e TBSA),the advatages and the disadvatages of two simplified methods to analyse frame tube structures ha
Abstract:The author provided the basis and standard on the classification of earth and stone material from cutting according to the rock properties we also discuss the technological process quality control point and quality test f
Lu Yingping Lin Yaping Yang Guanzhong Wang Wenzhang
Abstract:Based on the matrix model,this paper presents a method to solve mapping matrix B(X) and output matrix A(X) .It also puts forward the solution of K -level output matrix and P k Partition.On this basis,an algor
Abstract:This paper introduces the technique of cost effectiveness and risk analysis employed in decision making appraisal to the major processes of analysis of the dynamic conflict decision making modelling,and have obtained conflic
Abstract:This paper studies several kinds of direct foreign investment measuring models affected by delay influence and compares the advantages and the disadvantages respectively.It also discusses the choosing principles and marginal