E－自反逆半群嵌入定理

本文利用关于Ｅ－自反逆半群的结构定理，证明了每个Ｅ－自反逆半群都能嵌入到半格和Ｃｌｉｆｆｏｒｄ半群的半直积中。     

C语言源程序汉字处理

本文在找出汉字区位码地址码转换关系的基础上，阐述了用Ｃ语言开发的，在西方图形方式下能显示一、二级汉字库中所有汉字的处理软件的设计考虑，并给出有关程序。     

积分微分系统概周期解存在性定理

采用上下解方法，给出了一个积分微分系统概周期解存在的一般性定理。     

Defects in La_2CuO_4 and La_(1.86)Sr_(0.14)CuO_4 single crystals

La2CuO4 and La1.86Sr0.14CuO4 single crystals were obtained by traveling solvent floating zone method. There were five kinds of defects in these single crystals: cracks, inclusions, gas bubbles, unhomogeneous distribution of Sr2+, and substructures. CH3COOH aqueous solution was used to etch these single crystals, and the etch-pit density was calculated. The formation mechanism of these defects was discussed. It is suggested that the good preparation of raw materials and the stringent growth conditions play an important role in growing high quality single crystals.     

统一建模语言及其在医院信息系统中的应用

本文详述了如何应用UML建立医院门诊管理信息系统,给出了门诊管理信息系统的结构和设计方案,最后说明了应用UML对系统进行辅助建模是一种很好的模式。     

纳米化处理对锆合金腐蚀性能的影响

讨论了表面纳米化处理对锆合金的抗腐蚀性能的影响.对于具有表面纳米及超细晶组织的锆合金来说,其腐蚀性能的影响因素不仅包括晶粒尺度,还包括合金成分、氧化膜的组织与性质、热处理工艺方法、表面状态、反应堆水化学等.而上述因素中的任何一个因素变化,都会导致材料腐蚀性能改变.因此对于锆合金纳米化后腐蚀性能研究,应从全方位考虑,从而对锆合金的腐蚀性能有一个全方位的认识.     

基于ADAMS的六自由度运动平台运动学分析

针对一种六自由度运动平台,建立其运动学模型,应用ADAMS分析软件进行了运动学仿真,证明了ADAMS分析软件对并联机构运动学正面和反面问题求解的有效性.     

旅游景区主题的物态化表现方式——重庆市涪陵区水磨滩水库设计构想

景区的主题设计和表现是景区规划的重要内容。各种不同的景区主题不同。对于观念、情绪或情感类主题的表现,需要用物态化方式,即用物质来体现主题氛围。以重庆市涪陵区水磨滩水库景区设计为例,对景区主题物态化的方法及营造景区的主题“场”等方面进行了研究,从而构建主题的物态“体系”。     

FDTD Analysis and Application of Sleeve Monopole Antenna

Based on the symmetry of the structure, a two-dimensional finite difference time domain （FDTD） method is used to analyze the sleeve monopole antenna on the infinite perfect conductor ground fed by a coaxial line. The fields in time domain are then turned into frequency domain through the discrete Fourier Transform to compute the surface current distribution and the input impedance of the sleeve monopole antenna. The gain or pattern of the monopole antenna is also computed, employing the combination of the image theory and the near-to-far transformation in frequency domain. All the computed results agree very well with the results of other methods and measured ones, verifying the application of the FDTD method to analyze the sleeve monopole antennas. The voltage standing wave ratio （VSWR） of the sleeve monopole antennas with different heights and radii of the sleeve are checked to study the influence of the sleeve, which indicates that the height and the radius of the sleeve are both important to the impedance bandwidth of the sleeve monopole antennas.     

Ⅰ-型钢槽阻尼器的ANSYS仿真分析

运用ANSYS非线性有限元程序，对不同设计参数的Ⅰ-型钢槽阻尼器的滞回性能进行仿真分析，考察了设计参烽对钢槽阻尼器消能性能的影响，研究表明，Ⅰ-型钢槽阻尼器的滞回曲线饱满，具有较好的消能性能，通过ANSYS仿真分析，能获得较优的设计参数，对实际钢槽阻尼器元件的设计、加工制作和试验分析有一定的指导性作用。