支持专业知识获取的中间件的研究

 分析了如何利用中间件技术支持专业知识获取的问题．提出了基于XML，SOAP，UDDI和WSDL的web服务技术的专业知识获取的中间件应用模式，它可以有效解决消息传送、服务功能的抽象描述以及服务在网络上的发布与发现等问题。以固定瓦推力滑动轴承的性能参数计算Web服务为实例，指出web服务是分布式设计知识获取和知识资源集成的有效途径．     

基于Solidworks的零件设计系列化

通过实例介绍了利用Solidworks平台建立机械零件设计系列化的方法。它方便了缺少编程技术的设计人员，有助于提高设计效率，进而缩短产品研发周期，为企业赢得市场。     

An interface between object-oriented databases and relational databases

Currently relational databases are widely used, while object-oriented databases are emerging as a new generation of database technology. This paper presents a methodology to provide effective sharing of information in object-oriented databases and relational databases. The object-oriented data model is selected as a common data model to build an integrated view of the diverse databases. An object-oriented query language is used as a standard query language. A method is developed to transform a relational data definition to an equivalent object-oriented data definition and to integrate local data definitions. Two distributed query processing methods are derived. One is for general queries and the other for a special class of restricted queries. Using the methods developed, it is possible to access distributed object-oriented databases and relational databases such that the locations and the structural differences of the databases are transparent to users.     

微型集散系统通用过程控制软件包

本文给出一种新的基于ＭＣＳ－５１单片机集散系统通用过程控制软件包的设计原理及其实施方法。文中重点地阐述了微型集散系统的构在民，通用过程控制软件的自动生成，主要数据结构与程序结构，实现方法及关键技术等。本软件包是采用ＴＵＲＢＯＣ２．０版本和ＭＣＳ－５１泄编语言编程的，并通过了ＭＣＳ－５１组合软件的编译，形成了可用的目标码程序系统。     

Basic concept and decentralized autonomous control of super‐distributed energy systems

New small‐scale dispersed generation systems, such as fuel cells and micro gas turbines, have made remarkable advances lately and they will be applied practically in the near future. Although a large number of researches on the introduction of small‐scale dispersed generation systems have been carried out, only a small number of small‐scale dispersed generation systems are considered in these researches. Therefore, little is known about problems to be solved when a large number of small‐scale dispersed generation systems are introduced into electric power systems. This paper deals with a super‐distributed energy system that consists of a great number of dispersed generation systems such as fuel cells, micro gas turbines, and so on. The behavior of a customer with a dispersed generation system is simulated as the Ising model in statistical mechanics. The necessity of a distribution network in super‐distributed energy systems is discussed based on the Ising model. The feasibility of decentralized autonomous control using vicinity information is also investigated on the basis of stability analysis of the Hopfield neural network model. © 2005 Wiley Periodicals, Inc. Electr Eng Jpn, 151(1): 43–55, 2005; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10368     

1.30μmDFB激光器组件的设计和制做及其工作原理

本文自行设计和制作了１．３０μｍＤＦＢ激光器组件的讨论了光隔离和光耦合原理。由于采用的激光器－光隔离器－光纤的一体化结构，大大增加了该组件的可用性。在实验中得到高达５５％的耦合效率。     

Integrated distributed intelligent system for process-control system design

In process-control system design, the Computer Aided Design (CAD) techniques have evolved a new generation of design techniques. This also paves the way for implementing Computer Integrated Manufacturing Systems (CIMS). However, the key issue to accomplishing the objectives in CAD is the automation of conceptual design. This paper first introduces the fundamentals of conceptual design for process-control system design. Then, a strategy to solve the problems in conceptual design is proposed. The associated system configuration and software implementation platform for developing intelligent systems for process control system design are presented. Finally, an application case is studied.     

High‐error approximate dictionary search using estimate hash comparisons

A method for finding all matches in a pre‐processed dictionary for a query string q and with at most k differences is presented. A very fast constant‐time estimate using hashes is presented. A tree structure is used to minimize the number of estimates made. Practical tests are performed, showing that the estimate can filter out 99% of the full comparisons for 40% error rates and dictionaries of up to four million words. The tree is found to be efficient up to a 50% error rate. Copyright © 2006 John Wiley & Sons, Ltd.     

AutoCAD作图技巧浅析

介绍了AutoCAD中作图的原则、步骤以及使用技巧,包括AutoCAD表格制作、在Word文档中插入AutoCAD图形、线宽修改、图形的打印技巧、选择对象的一些技巧、绘制局部放大图的方法等,对大多数AutoCAD的使用者在学习和应用中有很大帮助。