Abstract:The theoretical basis and main methods of numerical simulation of thepressure distribution for sedan body surface are introduced in this paper. The mathematical model of the sedan body contour and the phgsical model for pressure distributionare establishe
Abstract:This paper builds up a stochastic process hitch degree and studies thevariance function and the mean function by processing a graphic analysis of the largenumber of spot date on computers,then provides the approximation broken line methodfor the variance
Peng Jianchun Jiang Hui Zhou Youqing
Abstract:This paper presents a new method for diagnosing harmonics in powersystems with an artificial neural network.Instead of conventional fast Fourier transform(FFT),BP model is trained to reflect the ae current(voltage)signals to the quantities oftheir fundame
Fang Zhi Huang Likui Zhou Lelong ,
Abstract:The grey system model method for creep deformation prediction of concrete structures has been presented.Depending on the method,the long term creep deformation of concrete beams has been predicted on the basis of short term experimental data.A good agreem
Abstract:In this paper,the finite element analysis of the vibration of combinedfoundations is carried out,and the calculated results are compared with those from thecomposite system model and the tests. Some important laws are obtained.The new opinions on the vibr
Abstract:By studing the principle of utilizing hyacinth to deal with the domesticand industry sewage,this paper sums up the experience of hyacinth utilization in thesouth part of china and presents four efficient treatment routines of hyacinth utilization.
Lu Yaojiao Zhang Jishuang Pen Xiaoping Han Wen
Abstract:This peper concentrated on the activation methods of three kinds of coalashes by modification agents,The economical and rational activation method was discovered by experiment.Excellent behaviors of activated coal ashes were inspected.Resultsshowed that,t
Abstract:The Dirichlet problem of quasilinear elliptic equation with critical growthcondition is discussed in this paper,and a nontrivial solution is given.
Abstract:The fundamental construction of Kotelinikov's transformation the construction of transforming Burmester's curve into a circle,and vice versa,by the trans-formation are discussed in the paper. The mechanism for accomplishing the constructionare given in th
Abstract:本文得到了双曲元素的一种“平行”分解。利用此种几何分解,证明了Jrgensen和Beardon关于Riemann面上短程线的一个结果在H ̄3上成立。同时定义n(n>2)维的空间半旋转,并讨论了n维Mobius变换关于空间半旋转的分解。
Abstract:In this paper,using the fixed point principle,we study the boundaryvalue problems for third order differential equation with deviating arguments. Existenceand uniqueness results are obtained.
Zhou Zhiren Wan Jiqing Wu Zhuowen Liu Fangming
Abstract:本文给出了我们设计的四个有特色的CMOSD触发器的逻辑,它们应用于一个VLSI单片微机电路中。文章分析了它们的特点和原理。其主要特点是:①增强了同步控制措施;②“预≈帽与“清除”共用一根控制线以减少芯片面积;③附加功能,提高D触发器的处理能力。这些适应了VLSI系统设计的要求。
Wang Lingling Hu Wangyu Wu Lijun Liu Rangsu Zhai Jian
Abstract:we have studied the magnetic parameters dependence on the frequency fand the magnetization field B for four amorphous alloys. The experimental results showthat the magnetization process of amorphous alloys is consistent with the technical mag-netization r
Cui Hui Lin Zhaohui Tang Dehua Shen Guoli
Abstract:A general-purpose PVC membrane electrode has been proposed for analysis of saccharin and cyclamate. The PVC membrane was prepared from hexadecyltri-octylammonium iodide with dinonylphthalate as the solvent mediator. The electrode canbe activated by conndi
Xie Youzan Nie Ronghua Yuan Changzhi Qin Yidong Du Anan
Abstract:Through exploring raw stuff of aphanital graphite intermediate productand pure graphite , we get the structural parameter of earth-like graphite in the differentstages. Aphanital graphite also changes under some pysico-chemical coodition. Withchemical ttr
Abstract:By comparing and analyzing the designing methods of the curve for elec-trode extruder mould-mouth----arc method,spline interpolation method,conicmethod and hyperbola method,we concluded that the hyperbola method is better thanthe other methods.
Wang Kemin Wu Qingan Xiang Jiannan Zhang Yuchen Huo Xiqin Lin Huigai
Abstract:比较了几种含氟微孔聚合物作为透醇膜的醇/水渗透蒸发性质,具有适中孔径的疏水微孔聚四氟乙烯改性膜性能最佳。考察了料液温度与浓度对膜分离性能的影响。在最佳条件下,膜的分离系数为8.04,透过通量达1025g/m^2h。在发酵时用该膜从发酵液中分离产物乙醇,使葡萄糖转化率与乙醇生产能力均获明显提高。
Abstract:The distribution of outting force along each edges of CMFD (Chinese Multi-Facet Drill)in drilling and the effect of cutting speed and feed on drilling forcewere observed by means of test.