Abstract:应用δ函数,推导出塔式起重机变截面塔身位移的计算公式,计算简便,应用方便.
JIANG Hai-bo , CHE Hui-min , YI Wei-jian
Abstract:采用基于真值约束的模糊推理方法简化铁路混凝土梁的可靠性评估过程.针对大量铁路混凝土梁具有很大相似性的特点,该方法在评估混凝土梁可靠性的过程中更展现出其强大的易用性与准确性.通过实例说明了该方法既简便又实用.
Abstract:Sufficient conditions for the uniform stability and uniformly asymptotic stability of the zero solution of the nonliear nonautonomous delay difference equations are obtained.
PENG Fan , PENG Xian , FU Yi-ming
Abstract:Based on the acceptable assumptions that base materials exhibite isotropic creep flow and fiber materials behave elastically,the creep characteristics for fiber composites with the model of micromechanical analysis proposed by Aboudi are obtained.It is co
HU Wang-yu , QI Wei-hong , ZHANG Bang-wei
Abstract:The vacancy formation energy E f is one of the important model parametres of embedded atom method(EAM).The exprimental result of E f is rather scatter,and not aviable for most of metals.Based on the model proposed by Brooks,we have improved the
ZHU Zheng-hua , WANG Xin , YANG Xu
Abstract:A harmonic oscillator with time dependent frequancy is studied using double wave function theory.The calculation of displacement,momentum and energy etc,shows that the oscillator moves quasi harmonically in time.When the frequancy comes to a constant,th
ZHONG Ke-jun , CAO Zhi-xiang , WEN Ling-fei , HE Shuang-e , ZHU Yuan-bao
Abstract:用不同强度的静磁场作用于超氧化物歧化酶溶液后，通过测定其活性表明，ＳＯＤ的活力随磁感应强度和作用时间不同而波动性升高并最终趋于稳定。２００ｍＴ磁场作用２ｈ，ＳＯＤ对自氧化的抑制率增加１７％《实验还首次发现ＳＯＤ的磁效应具有一定的可逆性。
Abstract:通过相应膦二氯化物与２，４，６－三叔丁基苯基氨基锂的反应，再经１，８－二氮双环「５．４．０」－７－十一烯脱氯化氢合成了两个新的氮杂磷烯化合物。与二磷烯比较，分析了它们在核磁共振磷谱中化学位移的变化。
CHEN Tong-sen , YANG Tie-jun , ZHAO Xin , YANG Fang
Abstract:研究了锰ｍｅｓｏ－四（３－氯－４－羟基－５－甲氧基苯基）卟啉（３Ｃｌ－４Ｈ－５ＴＭＯＰ）Ｐ一十二烷基硫酸钠 事物的形成条件。在ＳＤＳ存在下，于ｐＨ７．２０－８．８０的缓冲介质中，Ｍｎ与Ｔ（３Ｃｌ－４Ｈ－５ＭＯＰ）Ｐ形成１：１配合物。
Abstract:通过相应膦二氯化物与2，4，6-三叔丁基苯基氨基锂的反应，再经1，8-二氮双环［5．4．0］-7-十一烯脱氯化氢合成了两个新的氮杂磷烯化合物。与二磷烯比较，分析了它们在核磁共振磷谱中化学位移的变化。这些具有—PN—和—O—PN—结构的氮杂磷烯化合物水解生成相应的亚膦酸酰胺和芳氨基亚膦酸酯。
DENG Zhao-hui , LI Ping-fan , YANG Xu-jing , SUN Zong-yu
Abstract:The methods to produe metal parts quickly based RPM are introduced and simply evaluated,and the applications of RPM technologies in producing metal parts quickly are prospected.
YANG Xu-jing , SHENG Xiao-min , DENG Qian-wang , DENG Zhao-hui , LIU Shao-feng
Abstract:The applied technology of Pro/ENGINEER software system in rapid prototyping(RP) is prosented.It emphasizes on the main module,fanctional characteristic of Pro/ENGINEER software system and its application to RP technology.It also provides the therectical f
PENG Jian-chun , HUANG Chun , WANG Yao-nan
Abstract:The neural network and fuzzy control theories are fused into PID controller.An intelligent adaptive PID controller for static var compensator(SVC) is designed.Neural network is used to identify dynamically the plant model.Fuzzy logic and neural network
PENG Chu-wu , ZHONG Qing-chang , JIA Qing , XIE Jian-ying
Abstract:深入分析了基于极点配置理论和鲁棒控制基本原理而提出的鲁棒ＰＩＤ控制器，导出了该控制器极点配置的约束条件，提出了一种基于对象开环阶跃响应辨识对象参数的控制参数自动整定 同的对象进行的仿真结果表明，该方法是相当有效的，具有广阔的应用前景。
ZHANG Chang-fan , LONG Yong-hong , CHI Hong-xun
Abstract:An oil filling machine for diesel locomotives with distributed control systems is introduced.The function of the system and the principles are described.The hardware and software of control system are discussed.Last a experiment result of control system
ZHANG Zhi-wen , LIU Fu-sheng , XIONG Zhi-yao
Abstract:A important and auxiliary function of the Multi function Balance Traction Transformer(MFBTT) is leaching harmonics in higher harmonic.It is effective apparently to leach harmonics.A detailed filter model is presented.The model is calculated and analyzed
REN Bo-zhi , XU Shi-rong , YU Jian
Abstract:在分析均质滤料床过滤方程的基础上，合理选择含深度步长的参数α，从而将精确的过滤连续性方程简化。采用有限差分法对简化方程进行离散，并用迭代法求解，和到了均质滤料床滤后出水浓度模拟结果。
ZHANG Ke-neng , ZOU Ying-sheng , WANG Yi-sun
Abstract:The experiment and aplication shows that the clay cement slurry is suitable for grouting curtain in the Nanchang rubbish buried site.The grouting curtain has hige anti permeatinon effectivity and low cost.
JIANG Hai bo , CHE Hui min , YI Wei jian
Abstract:The reliability assessment procedure of oncrete beam of railroad bridge is simplified by Fuzzy Inferential Method based on truth value restriction which is more suitable for complex reasoning comparing with other motheds.According to the analogy of many c
HU Ye , YANG Chang-zhi , SUN Yi-jian , HUANG Yu-hui
Abstract:The characters of the HVAC system at cigarette factories are depicted and the operation program is recommented.Also,a method of developing the software about energy conservation operation is proposed.The result of a calculation instance illusrates that th
Abstract:以弧长－流函和为曲线坐标，推导出了二维 不可压缩流动的一种新方法。该方法通过坐标变换将物理域变为计算域，将计算域中的曲线坐标ｓ和ψ分别定义为沿流线方向的弧长和流函数，则对于不可压缩流动，就可将在笛卡尔坐标系内解拉普拉斯方程转化为解两个以ｓ和ψ为自变量，ｘ和ｙ为因变量的椭圆型偏微分方程，应用此方法，许多边界条件都是狄利克勒型的，简化了数值求解过程。
CHENG Wei , CAO Ding-hua , ZHANG Cheng-jian
Abstract:Matrix and vector template classes are defined based upon object oriented technology(OOT).The conventional computation among matrix,vector and number is realized by overriding operators.According to the property of matrix,the scanty reserve way of object
Abstract:The problems about traditional MIS,enterprise LAN and the trend of MIS being changed into Intranet are analysed.Based on the principal of maximum economy and maximum efficiency,an Intranet constructing solution suitable for medium and small sized enterpri
Abstract:Based on the actual background of our enterproses taking part in the international competition,investigates the strategic decision of entering and retreating the international market is investigated.It manipulates the rules and methods of the static game
