利用在线仿真器(ICE)设计微机故障自动诊断系统

本文介绍了利用KSJ-8085微机在线仿真器(MICE)设计的一个微机故障自动诊断系统。定义了主机与MICE的软件接口模式,为MICE在微机维修工作中的广泛应用,开辟了新的途径。     

在线仿真器在微机设备中的应用

本文介绍了利用KSJ-8085MICE进行二次开发——建立故障自动诊断系统(简称ADS系统);论述了在线仿真器在微机设备中的应用以及所收到的应用效果。     

赫斯曼-千兆工业以太网交换机 Power MICE

Power MICE是卡轨式安装、模块化设计，并支持网络管理的千兆工业以太网交换机，将大型以太网交换机各种功能融合在工业级的设计中。     

赫思曼推出可用于Ex-Zone1的以太网模块

德国赫思曼公司近日推出了一种新型的光介质模块MM20-M5M5M5M5EDHC。使用这种用于MICE模块化交换机的模块（MICE已被批准在Ex-Zone2内安装）．以及microFX系列的光收发器和连接器，就可以通过以太网在Ex—Zone1内与远程终端安全地连接。     

电冰箱空调器商检线微机检测系统的机电结构设计

本文主要介绍电冰箱空调器商检线微机检测系统的机电结构设计，内容包括：检测主机箱结构的选用与设计；温度传感器结构设计；桁架设计及布线分布等，本系统投入运行以来，经济效益显著。     

微机CAD系统选配

CAD技术起源于60年代，当时主要应用于航天、汽车工业，运行在大型机上；70年代应用范围扩大，运行在小型机、工作站；80年代末至90年代初，微机性能不断提高，价格却急剧下降，基于微机的CAD软件逐渐丰富、完善起来，并获得极大的普及，最具代表性的就是美国Autodesk公司开发的AutoCAD系列软件，占据了大部分市场份额。国内基于AntoCAD的二次开发软件应用广泛，建筑、机械及近机类的二次开发软件有大批用户。近年来，微机在企事业单位、设计院已经普及，微机档次已转向486DX2以上，绝大多数工程设计人员都将利用微机进行绘图、设计…     

水下航行器最速控制系统设计及微机控制系统实现

本文应用模型降阶理论，结合参数优化方法，设计了适于高阶系统，易于工程实现的非线性反馈最速控制规律，并从构成微机控制系统的角度着眼，讨论了采样周期的选取，微机及 Ａ／Ｄ，Ｄ／Ａ转换器的择用，实时控制软件的编制等问题；并进行了数模混合仿真实验研究，实验结果表明：该微机控制系统控制品质好，响应速度快，超调小，稳态性能好，易于工程实现，具有较大的工程意义。为设计新型水下航行器控制系统提供了技术储备。     

选煤厂微机局部网络信息管理系统

1．概述80年代以来，建立的选煤厂微机信息管理系统，大都采用了低价的局部网络。由于选煤厂信息管理系统中，数据传递量不大，实时性不强，所以一般常选用以下网：K网、PC网、PLAN－2000网、D－LINK网以及Novell网。根据选煤厂管理部门分工形式，将信息管理系统划分为十几个子系统，这些系统中，个别子系统配一台微机，或几个子系统配一台微机；一般根据对微机管理形式、部门性质、微机价格、资金等因素进行综合考虑，一个选煤厂可配置4～10台微机及相应的打印机；并进行高、中、低档微机适当搭配，以满足对微机不同功能要求，从而建…     

高精度智能转速测量模板的设计

介绍了一种利用高性能的16位单片机80C196KC进行转速实时高精度的测量方法，阐述了如何通过CAN总线实现与微机通讯；详细描述了硬件电路的设计，并给出了软件程序框图。     

基于迅驰的移动计算机体系结构设计

本文分析了基于迅驰GM移动平台的微机体系结构设计，在板参设计上考虑了高速系统设计时的信号完整性问题；在处理器系统总线设计时确保信号的高速性和正确性；在内存接口设计上解决了传输线阻抗的连续性问题。同时，在设计时引入了仿真方法，保证了移动计算机体系结构设计的合理性和正确性。     

Design and implementation of a collaborative molecular graphics environment.

During the determination of macromolecular structures, scientists routinely use complex graphics software to display various representations of the molecule of interest. Once the structure determination is complete, coordinates are deposited in the Protein Data Bank (PDB), from where anyone with an Internet connection may download and view them or request them on CD-ROM. However, the currently available visualization software is such that causal users, whose expertise may not be in structure determination, often cannot obtain useful images of interesting molecules without expending considerable time and effort. Existing visualization software is generally very complex, requiring a high degree of familiarity to obtain the best results, or else it is too simplistic to provide users with the level of customizability needed to get the most out of the atomic coordinates. Few of the existing software packages have the capability for collaborative visualization via the Internet. These and other issuses are being addressed by the Molecular Interactive Collaborative Environment (MICE) project (http://mice.sdsc.edu/). The core of the MICE project is the MICE application, an interactive molecular structure viewer with built-in collaborative capabilities. MICE not only addresses the issues of usability and flexibility but also extends the role of traditional visualization tools by allowing multiple users to view, manipulate, and interact with a single representation of a macromolecular structure. MICE is written entirely in Java, using the Java3D extensions for rendering and manipulation of the three-dimensional scene, and the Common Object Request Broker Architecture (CORBA) communications suite to enable collaborative manipulation of that scene.     

面向服务的数学编程标记语言(MPML)

网格计算作为一种新的计算模式,是目前计算机领域的研究热点,如何在网格计算模式下进行程序设计是网格计算技术的一个重要研究方向。数学编程标记语言(MPML)是在兰州大学计算机数学实验室的数学网络计算环境项目中设计和实现的一种编程语言。MPML是基于XML和MathML的可编程标记语言,旨在降低网格计算的难度,提高网络中数学资源的利用率。论文探讨了网格计算环境下的程序设计,详细讨论了MPML的设计以及遇到的问题,并首次提出了编程语言的可扩展性问题。     

西安市会展业现状的SWOT分析与发展对策

根据西安市会展业发展的实际,借助SWOT战略分析法对西安会展业的优势、劣势、机会和威胁四个方面进行系统分析,继而针对现状,提出相应的可行性发展对策。     

Multimedia integrated conferencing for European researchers (MICE): piloting activities and the conference management and multiplexing centre

In 1992, the CEC agreed to finance a one-year project called “Piloting of Multimedia Integrated Services for European Researcher (MICE)”. This paper outlines the background, purpose and aims of the project. The technical work required to interconnect existing facilities, and issues relating to influencing factors—such as standards and infrastructure—are discussed in detail. In conclusion, we provide an outlook on the future of multimedia conferencing and highlights some of the next steps to be taken.     

天津会展品牌塑造的创新思考

伴随天津滨海区域经济的崛起,天津相继承办包括世乒赛、奥运会部分项目等国际盛会,会展业的发展受到了高度的重视。天津会展业的发展驶入了快车道,但是存在的问题也逐渐暴露,其中会展品牌塑造的模糊乃至缺失就是其中重要一项。品牌是会展业发展的灵魂。会展的品牌化发展势在必行。文章尝试提出塑造会展品牌的可行性对策,以促进天津会展品牌的建设。     

Customer-driven product design and evaluation method for collaborative design environments

Product concept generation and evaluation in a product development environment has been identified as the two major activities needed for obtaining an optimal design scheme. Product conceptual design is of critical importance in design through customer involvement for the systematic and simultaneous consideration on the impact of design decisions on manufacturing and assembly leads to repeated and excessive changes in design and processes. This paper introduces a novel knowledge support approach for the organization and ranking of design feature knowledge towards an integrated product model that incorporates a feature-based representation scheme targeted to evaluate the impact of design on subsequent activities in the conceptual design phase, taking into account the presence of design information and user preferences. An uncertain linguistic multi-attribute decision-making evaluation model is proposed and discussed for obtaining an optimal design scheme during the evaluation and selection of product design alternatives in conceptual design. The focus of this paper is on the development of a knowledge-intensive support design scheme and a comprehensive systematic fuzzy evaluation methodology for product conceptual design generation, evaluation, and selection. A case study and the corresponding scenario of knowledge support for design alternatives generation, evaluation and selection are provided for illustration.     

Understanding and Automating Algorithm Design

Algorithm design is a challenging intellectual activity that provides a rich source of observation and a test domain for a theory of problem-solving behavior. This paper describes a theory of the algorithm design process based on observations of human design and also outlines a framework for automatic design. The adaptation of the theory of human design to a framework for automation in the DESIGNER system helps us understand human design better, and the implementation process helps validate the framework. Issues discussed in this paper include the problem spaces used for design, the loci of knowledge and problem-solving power, and the relationship to other methods of algorithm design and to automatic programming as a whole.     

Developing a multi-layer reference design retrieval technology for knowledge management in engineering design

Engineering design is a knowledge-intensive process that encompasses conceptual design, detailed design, engineering analysis, assembly design, process design, and performance evaluation. Each of these tasks involves various areas of knowledge and experience. The sharing of such knowledge and experience is critical to increasing the capacity for developing products and to increasing their quality. It is also critical to reducing the duration and cost of the development cycle. Accordingly, offering engineering designers various methods for retrieving engineering knowledge is one of the most important tasks in managing engineering knowledge.

This study develops a multi-layer reference design retrieval technology for engineering knowledge management to provide engineering designers with easy access to relevant design and related knowledge. The tasks performed in this research include (i) designing a multi-layer reference design retrieval process, (ii) developing techniques associated with multi-layer reference design retrieval technology, and (iii) implementing a multi-layer reference design retrieval mechanism. The retrieval process contains three main phases—‘customer requirement-based reference design retrieval’, ‘functional requirement-based reference design retrieval’ and ‘functional feature-based reference design retrieval’. This technology involves (1) customer requirement-based reference design retrieval, which involves a structured query model for customer requirements, a case-based representation of designed entities, a customer requirement-based index structure for historical design cases, and customer requirement-based case searching, matching and ranking mechanisms, (2) functional requirement-based reference design retrieval, which includes a structured query model for functional requirements, a functional requirement-based index structure for historical design cases, and functional requirement-based case searching, matching and ranking mechanisms, and (3) functional feature-based reference design retrieval, which is a binary code-based representation for functional features, an ART1 neural network for functional feature-based case clustering and functional feature-based case ranking.     

支持快速设计的重用策略研究及其应用

设计重用就是将过去的设计知识和成功经验用于当前的设计中,它是支持快速设计的重要手段。研究了支持机械产品设计重用的基本理论以及面向设计过程的重用框架;提出设计重用表现为设计准备重用和实施设计重用两个方面;指出设计重用的难点是准备重用。创建设计向导和设计信息捕捉机制,组织挖掘已有的设计知识,以工程基础库为支撑,通过事例推理是实现设计重用的有效措施。应用于支持型号夹具快速设计的重用策略,满足了企业快速设计的要求。