GPIB激光自动测径系统及逻辑分析仪的应用

激光测径仪可以对被测的直径进行精确地测量，但被测物所处的环境条件如灰尘、蒸汽等都会影响测量的精确性。本文介绍了一种基于GHB接口的激光测径自动测试系统，用于采集激光测径仪在各种干扰条件下的测量信号，并利用计算机对获得的数据进行处理，从而消除环境对测量结果精确性的影响，另外重点介绍了系统中逻辑分析仪的使用。     

某大型商贸中心的人员疏散性能化分析

新型建筑不断涌现使得火灾安全性能化设计被广泛应用，人员疏散是其中的关键环节。结合某大型商贸中心的火灾安全性能化设计方案，利用CAFE模型分析了人员疏散性能。结果表明，由于该模型量化了人员疏散过程中人与人、人与环境之间的作用力，因此计算得到的人员疏散时间比同类软件更加保守，分析结果具有更高的可靠性。     

爆破不锈钢复合板界面组织和性能分析及应用

研究了普碳钢和不锈钢爆破成型的工艺和组织、性能，结果表明，不锈钢复合板界面呈波纹原子状结合，形成约30μm宽的亚微米级的超细晶粒带，具有高的结合强度，热处理后界面存在碳的扩散，结合区爆破态的硬度高于热处理态。用此工艺生产的不锈钢复合板材料成本低，综合性能好。     

贵冶控制网主干改造

本文简要介绍了贵冶控制网及控制网改造的原则,并对网络改造后采取的提高网络可靠性的方法进行了说明。     

表面处理方式对铜/钼/铜复合材料界面结合效果的影响

借助金相显微镜、扫描电镜观察了钼、铜界面的微观组织，研究了采用不同表面处理方式对铜／钼／铜复合材料界面结合效果的影响，并对其界面的结合机制进行了深人的讨论。结果表明，经过喷砂化学处理的材料复合后界面结合最牢固，界面剪切强度最高，达到78．9MPa，形成很强的铜和钼的机械啮合，其主要的结合机制是机械啮合机制和硬化块破裂机制；在同等复合参数条件下，3种处理方法中化学处理法的界面强度最低。     

Feature Activated Molecular Dynamics: Parallelization and Application to Systems with Globally Varying Mechanical Fields

A recently developed hybrid molecular dynamics method (Feature Activated Molecular Dynamics, or FAMD), which was originally designed to extend the scope of certain types of molecular dynamics simulations, is extended here in two ways. First, the method is modified to execute on parallel computer architectures using the MPI communication interface. The parallel FAMD algorithm is demonstrated to be computationally efficient and to substantially increase the length scales accessible with molecular dynamics. The performance of the parallel algorithm is demonstrated using a crystalline system containing 1× 10⁶ atoms, in which 1000 supersaturated self-interstitials are introduced and allowed to aggregate for about 4 ns. In the second part of this paper, the FAMD method is applied to problems in which spatio-temporally varying stress fields are present throughout the simulation cell. In particular, we consider the evolution of a spherical void in a hydrostatically stressed silicon crystal and show that the method can capture the extremely rapid void cavitation dynamics following material failure. Once again, the FAMD approach is demonstrated to provide substantial computational advantages over standard molecular dynamics.     

An integrated procedure for three‐dimensional structural analysis with the finite cover method

In this paper an integrated procedure for three‐dimensional (3D) structural analyses with the finite cover method (FCM) is introduced. In the pre‐process of this procedure, the geometry of a structure is modelled by 3D‐CAD, followed by digitization to have the corresponding voxel model, and then the structure is covered by a union of mathematical covers, namely a mathematical mesh independently generated for approximation purposes. Since the mesh topology in the FCM does not need to conform to the physical boundaries of the structure, the mesh can be regular and structured. Thus, the numerical analysis procedure is free from the difficulties mesh generation typically poses and, in this sense, enables us to realize the mesh‐free analysis. After formulating the FCM with interface elements for the static equilibrium state of a structure, we detail the procedure of the finite cover modelling, including the geometry modelling with 3D‐CAD and the identification of the geometry covered by a regular mesh for numerical integration. Prior to full 3D modelling and analysis, we present a simple numerical example to confirm the equivalence of the performance of the FCM and that of the standard finite element method (FEM). Finally, representative numerical examples are presented to demonstrate the capabilities of the proposed analysis procedure. Copyright © 2005 John Wiley & Sons, Ltd.     

MPICH在Windows操作系统中的实现与应用

该文给出了对应于MPI标准的MPICH软件包在Windows操作系统中的配置和在MSVC＋＋中的实现方法，并对MPI与C／C＋＋绑定的基本编程进行了简要介绍。然后将其与一种电磁场数值算法——时域有限差分法相结合，以一维情况为例，讨论了网络并行时域有限差分法的实现方法。通过在由两台PC机构成的最简单的PC机群上的编程实现，验证了这种方法的可行性和高效性，实验结果表明通过MPICH软件包实现时域有限差分法的网络并行运算，可以使这种算法的加速比达到1．8。     

基于要素分离的用户界面安全性设计

提出了一种分离用户界面要素的方法来提高用户界面设计的有效性和可靠性。分析了用户界面设计中使用该方法的优点和如何对用户界面要素进行分离。重点讨论基于该方法的用户界面安全性设计。     

ARM与DSP在车流量检测系统中的应用

简介了车流量检测系统，设计了ARM与DSP通信的方案。该方案充分利用了DSP的HPI接口功能实现了主机ARM实时读，写DSP片内任意存储单元的内容，给出了硬件连接图和软件代码。该方案已应用于车流量实时检测系统中，经验证是有效且实用的方法。