Feature Extraction of Localized Scattering Centers Using the Modified TLS-Prony Algorithm and Its Applications

Feature Extraction of Localized Scattering Centers Using the Modified TLS-Prony Algorithm and Its Applications~~~~     

Ant System Based Optimization Algorithm and Its Applications in Identical Parallel Machine Scheduling

1 .ＩＮＴＲＯＤＵＣＴＩＯＮＩｄｅｎｔｉｃａｌｐａｒａｌｌｅｌｍａｃｈｉｎｅｓｃｈｅｄｕｌｉｎｇｐｒｏｂｌｅｍｆｏｒｍｉｎｉｍｉｚｉｎｇｔｈｅｍａｋｅｓｐａｎｈａｓｂｅｅｎｐｒｏｖｅｄｔｏｂｅａｎＮＰｐｒｏｂ ｌｅｍ[1,2 ] .Ｉｔｗａｓｔｒａｄｉｔｉｏｎａｌｌｙｓｏｌｖｅｄｂｙｏｐｅｒａｔｉｏｎａｌｍｅｔｈｏｄｓｓｕｃｈａｓｄｙｎａｍｉｃｐｒｏｇｒａｍｍｉｎｇ ,ｂｒａｎｃｈａｎｄｂｏｕｎｄｍｅｔｈｏｄ ,ａｎｄｉｎｔｅｇｅｒｐｒｏｇｒａｍｍｉｎｇ[3～ 7] .Ｔｈｅｓｅｍｅｔｈｏｄｓｃａｎ ｇｉｖｅａｎｏｐ…     

监控光带宽对真空蒸镀窄带滤光片的影响

分析了监控光带宽对薄膜淀积时膜厚极值点的影响，建立了模拟薄膜实际淀积过程的计算机模拟程序，通过对几种窄带滤光片膜系结构的模拟分析，得到了这些膜系对监控光带宽的基本要求。     

Graft Modification of N,N''''-methylene- bisacrylamide onto Silk in the Presence of Air

The graft modification of N, N'-methylene-bisacrylamide (NNMBAA) onto silk using eerie ammonium sulfate, potassium persulfate, ammonium persulfate and 2, 2-azobis (isobutyronitrile) as the initiators has been studied in the presence of air. To establish reaction conditions for the graft modification of NNMBAA onto silk, the effect of different variables such as the initiator concentration, monomer concentration, acetic acid concentration, time of polymerization, reaction temperature and liquor ratio (fabric: liq.) have been studied. The optimum grafting conditions were found. As evidence of grafting, analyses of amino acid composition and alkali solubility have been carried out. Grafting caused changes in amino acid composition and alkali solubility of silk. The observation has been explained in relation to structural changes in the grafted silk.     

安全关闭Win95/98系统

本文利用Win32 API修改注册表,建立用户的关闭程序,实现安全关闭操作系统。     

Structures and Properties of Composite Yarns of Filaments and Wool Staple Fibers

More and more composite yarns of filament and wool staple fiber have been applied to develop the new type of fabrics. However, the great difference in yarn structures between the composite yarns and conventional staple yarns does affect the properties of yarns and fabrics. In this paper, it has been studied that the differences of the composite yarn properties of tensile, bending rigidity, torsional rigidity, the hairiness and irregularity etc.     

非线性磁化特性对物体磁性处理过程的影响

在瑞利磁化区中建立了剩余磁化强度随外磁场变化的数学物理模型；研究了在用等比例衰减振幅的工作磁场对物体作用时，物体剩余磁化强度与工作磁场衰减比例常数间的数学关系；讨论了物质非线性磁化特性和磁滞特性对综合消磁过程中工作磁场的要求；在一定程度上说明了不同的消磁标准对比例常数的限制．     

基于螺旋理论的机构弹性的几何分解

介绍一种对模拟机器人弹性的６×６刚度和柔顺矩阵进行对角化的几何分解方法．采用螺旋理论，从三个正交的外载螺旋柔顺轴和三个正交的变形螺旋柔顺轴推导得一个相似变换，对角元素是线性及旋转柔顺和刚度的静态值．这与应力、应变及转动惯量的主轴和主值类似，证明了对非奇异及奇异情况，分解总是存在的，并给出了分解表达式．     

基于令牌的共享白板一致性算法

给出了三种多媒体电视会议的共享白板系统一致性的定义，提出了一个基于令牌的共享白板通信算法，算法的核心是使用一个循环传递的令牌来分配白板绘图消息的局部序号和全局序号，控制消息发送和处理的顺序，从而保证用户白板在外观上的一致．该算法对于三种一致性均能满足．     

加固计算机综述

加固计算机是一种重新安装在新外壳之中,适于军用标准的商用计算机。由于它的造价低,近年来得到飞速发展。本文评述了加固计算机的特点和发展概况,介绍了美国的加固/军用规范计算机环境建议标准和加固计算机在大的系统工程中的应用。