敏捷虚拟企业中基于CORBA的多级代理建模

敏捷制造虚拟企业（Agile Virtual Enterprise,AVE）作为一种新型的制造模式正在逐渐兴起。将CORBA技术应用到制造业中，根据制造业自身的特点，提出了分布式制造系统的多级代理模型。在该模型中，代理表示虚拟组织中某一功能部件或任务执行点；工作流表示代理之间相互依赖的关系；事件触发机制实现代理之间的互操作。由此，虚拟组织的运作和产品的协同开发就有了可靠的实现依据 。     

产品试验信息系统中图像信息的管理方法研究

简要分析了产品试验信息中图像信息的重要性和Forms中图像信息的处理方法。针对数据库外存储的情况 ,实现了一种与文本信息的管理方法一致 ,适合多列图像信息的输入、查询、更改及删除等的自动管理功能。     

监测记录电源干扰的触发装置

本文介绍一种用于监测多路电源实时干扰的故障触发器。在电力系统中，将这个触发器和数字示波器配合可快速、准确测出电压波形的变化，在其它需要检测波形偏差的地方也可采用这个触发装置。     

BESⅡ顶点探测器径迹组合触发判选系统

在ＢＥＳⅡ中顶点探测器代替了ＢＥＳ的中心漂移,建立了相应的触发判选子系统。介绍了ＢＥＳⅡ顶点探测器触发判选子系统的原理,构成,逻辑设计和结果。该系统是北京谱仪触发判选系统升级改进的主要项目之一。     

轿厢上行超速保护装置之钢丝绳夹绳器的研究

主要讨论了标准对钢丝绳夹绳器的设计要求和规定，并对现有市场上的钢丝绳夹绳器的类型．工作原理进行了综合的分析和研究；简述了钢丝绳夹绳器的型式试验方法．探讨了曳引比为1：1时的钢丝绳夹绳器制动力的计算方法。另外．对其他类型的轿厢上行超速保护装置进行了详细的分析。     

Terminability and compensatibility of cycles in business processes with a process-oriented trigger

BPTrigger is a process-oriented trigger model that provides economy of specification and efficient execution for complex business constraints. An essential part of trigger execution is detection and resolution of cycles. This paper presents an approach to determine the terminability of a cycle introduced by a BPTrigger in a business process and determine whether a cycle is allowable in terms of compensatibility. The foundation of the approach is a set of conditions for cycle termination derived from classifications of business processes by resource usage and activity types by compensation status. This paper formally presents cycle analysis procedures using the notion of cycle analysis graph. Further, a procedure is proposed which checks the terminability of multiple cycles using a composite cycle analysis graph constructed from the cycle analysis graphs of the associated cycles. The paper proves the correctness of the analysis and presents a validation example. The presented results extend some limitations of well-formed sphere which has addressed atomicity of workflow transactions.     

The effect of grain size and composition on the fracture toughness of Ti–Al–Nb alloys undergoing stress-induced martensitic transformation

The effect of grain size and composition on the fracture toughness of Ti–Al–Nb alloys in β solution-treated condition was investigated. The fracture toughness of the alloys was found to increase with an increase in grain size initially, reach a maximum and subsequently decrease with further increase in grain size. This trend was attributed primarily to the effect of grain size on the enhancement of fracture toughness due to stress-induced martensitic transformation (SIMT) at the crack tip, which in turn can be related to the effect of grain size on trigger stress for SIMT. Alloys containing higher Al and Nb showed a higher toughness for the same grain size, which was also explained in terms of effect of composition on the trigger stress.     

主动WEB_DB及其在CRM中的应用

在传统主动数据库的基础上，提出了主动WEB_DB的概念，讨论了主动WEB_DB的体系结构、实现途径以及在客户关系管理系统中的应用。     

数据库概念模型的分析与应用

在数据库理论方面提出了一种新的概念模型:限制型一对多概念模型,并对该模型的相关理论进行了简要的阐述,探讨了该模型在目标管理及其相近领域的应用;分析了实现这一模型的关键技术:触发器与嵌套事务模型;最后用这种模型实现了一个关于MRP的典型实例。     

快电子学低晃动触发电路和宽带放大器的研究与分析

研究了快电子学中２种最常用的单元电路：低晃动的触发电路和宽带放大器。对降低触发电路延迟时间晃动的方法进行了详细分析，并在实验中验证了这些方法，触发电路延迟时间晃动小于４５ｐｓ。对宽带放大器的一些基本特性及提高宽带放大器带宽的方法进行了分析，并应用于实际工作中，输出幅度±１０Ｖ，带宽大于２００ＭＨｚ。