Performance of Multicast Communication on Hypercubes

Based upon hypercube multiprocessor systems,this paper analyses in detail the communication performance under the background of the greedy multicast algorithm GMA.The mean delay time of a message both at a node and in the system under multicasting is derived.For the sake of contrast,the delay of multicast message is compared with that of multiple one-to-one messages.     

Studies on two concurrent solvers for finite element analysis

This paper describes a study carried out on the development and implementation of two parallel equation solvers for static finite element analysis. The two direct solvers, one for banded storage and the other for skyline profile storage, are implemented on a tightly coupled shared memory system. Certain key issues like (algorithmic) portability across different parallel architectures, matrix sparsity and vectorisation have been kept in mind while designing the algorithms. Performance studies have been conducted by varying the number of processors and the size of the problem. The results indicate that higher efficiencies can be obtained with both the algorithms described in this paper. However, one has to obtained with both the algorithms described in this paper. However, one has to choose the appropriate solver based on the concurrent approach chosen for paralleling the finite element code. The pseudo-codes, the concurrent implementation of the two solvers, both for shared and message passing systems are presented.     

Smalltalk的汉字信息处理

Ｓｍａｌｌｔａｌｋ是最具有代表性的面向对象的程序设计语言及环境。本文给出了在其中实现汉字信息处理的一种方法。此方法不是对原系统进行汉化，而是针对Ｓｍａｌｌｔａｌｋ的完成输入，输出及编辑功能的类程设置相应的汉字处理类程，使用户不但能在各窗口中处理汉字信息，而且也能在程序中输出汉字。文中首先分析了Ｓｍａｌｌｔａｌｋ的字符显示原理及窗口技术，然后详述了各汉字类程的设计思想和实现方法。     

基于短消息TC35的一种应用方法

介绍了单片机短消息收发系统的组成以及单片机与TC35的接口方法。并介绍了TC35的短消息AT控制指令集，并给出了部分程序，而且对中文短消息收发的协议数据单元（PDU）格式进行了分析，给出了删除短消息的流程。     

Message—Driven Bean在异步消息传输中的应用

讨论了EJB2．0中Message-Driven Bean的一些新特性和运行机制，通过实例讲述了在构建异步消息传输中Message-Driven Bean的应用，并讨论了它的优势、缺陷，以及与Session Bean的比较。     

七号信令系统的MTP部分在S12-CDMA MSC中的应用

介绍了七号信令系统的消息传递部分（MTP）的功能以及MTP在S12－CDMA（码分多址）MSC（移动交换机）中的应用，包括涉及到的硬件模块和人机命令，阐述了用人机命令创建MTP数据的步骤和信令链路告警的处理方法，此外还指出了其中的命令和参数与公网中S12EC74版交换机的区别。     

An example of facade colour design of mass housing

The colours and architectural characteristics of building facades are the major factors affecting the general appearance of cities. When cities are examined from various perspectives, first impressions are obtained from the geometrical forms and facade colours of buildings. The facade colour arrangements should reflect the features of the region and buildings. In this context various features of natural and artificial environments such as plant life, water elements, climate, and historical texture should be examined, and a facade colour arrangement should be designed according to the examination results. In addition, the other factors effective in determining the colour and style of a building, such as social‐cultural background of the society and traditional and natural building materials, should not be forgotten because in some regions traditional buildings with special construction styles, materials, and colours create a specific identity for the settlements and cities. The aims of this article are to elucidate the colour contrast, colour arrangement, and colour design stages of mass housing and to explain the colour design of Bizimkent Mass Housing, which was constructed in a new dwelling zone in Istanbul, Turkey, as an example of such an arrangement. © 2002 Wiley Periodicals, Inc. Col Res Appl, 27, 291–299, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.10068     

FFHSE系统中报文规范层FMS的研究

在简要介绍基金会现场总线系统中FMS所处的地位以及所面向的对象的基础上对报文规范层FMS的七大模块及模块服务进行了详尽阐述。     

基于GSM模块D15的单片机短信息收发系统设计

介绍用MCS-51系列单片机控制GSM数据模块D15收发短信息的原理、硬件电路和AT控制命 令集,并且对短信息收发的PDU格式和用户数据的编译码进行了分析.     

基于剩余容量估算的访问控制

本文提出了基于剩余容量估算的访问控制，该控制方法支持综合语音、数据及图像码分多路访问（Code-division　multiple-access，CDMA）系统，可用于逆向链路中非实时数据业务的剩余容量预测。为预测在下一时间片能够调度的剩余容量、数据包的数据量或数据包的数据速率，提出了静态剩余容量估算模式和动态剩余容量估算模式。利用模拟实验考察了停机概率和平均数据报文延迟两种性能指标。在综合语音、数据及图像CDMA系统中基于动态剩余容量估算的访问控制性能优于基于静态剩余容量估算的访问控制。