A policy-based billing management architecture for the next generation IP-based network

IP billing is not only a basic functionality to operate IP sen＇ices, but also it is fundamental to offer customers with a stable and QoS-enabled network environment. As IP-based network has been widely agreed to be the core network of NGN, and existing IP billing system is too simple to fulfill the emerging requirements, the next generation IP billing has become an interesting topic in recent years. Policy-based management brings flexibility and scalability to systems by describing management logic and functions through policies, and thus reduces the complexity of the management of large-scale systems. Working on existing efforts, this paper proposed an improved IETF policy framework based upon which a policy-based billing management architecture for the next generation IP-based network was presented. Then a prototype with some basic functionalities was developed. The results of the experiment validated the expected improvements specified in this paper.     

基于UML的面向对象编程在直接转矩控制系统中的应用

把面向对象的方法运用于控制系统设计，并利用UML的建模机制和特点，以UML为建模语言，同时以Rational ROSE为工具对直接转矩控制系统进行面向对象建模。     

O/W型乳液破乳剂的合成及性能评定

探索并建立了用环氧氯丙烷与混合胺反应制备阳离子Ｏ／Ｗ型乳液破乳剂的方法。通过正交实验，选择出合成反应的最佳条件及合成路线，并对其破乳性能和最佳用量进行了初步的考察。实验结果表明，这种阳离子型Ｏ／Ｗ乳液破乳剂具有良好的破乳性能，其破乳效率优于目前油田普遍使用的反相破乳剂ＣＷ０１。     

普通物理实验课目标教学尝试

分析评估了普通物理实验课传统教学模式,得出传统教学模式与能力培养要求不适应的结论;根据现代教育理论设计出实验课的目标教学方案,试验后取得明显效果。     

HLA/RTI中分布资源的存取机制研究

HLA(High Level Architecture)作为分布交互仿真领域最新的技术规范，促进了不同领域、不同类型仿真应用的互操作与可重用，RTI(Run Time Infrastmcture)是HLA的软件实现，其运行效率直接影响仿真应用的整体性能。我们对RTI中涉及的数据资源进行了定义，探讨了资源管理所面临的问题，设计出高效存储、快速索引这些资源的存储方案，改善了RTI数据管理效率，并成功地应用于自行开发的分布仿真支撑平台AST—RTI中。     

CIMS子系统集成次序优化方法

企业实施ＣＩＭＳ子系统集成次序的确定是一个重要的决策问题。本文从企业实施ＣＩＭＳ的具体需求出发，将系统分析与模糊优化结合起来，建立了企业实施ＣＩＭＳ子系统集成次序优化的计算模型，详细描述了模型中多目标、多层次的优化目标体系和优化计算步骤。最后通过一个实例验证了该优化模型。     

Workplace Logics, Kinds of Knowledge and Action Research

Workplace logics signify attitudes that employees express in close interaction, formal decision-making and collaborative interventions. The term covers a metaphorical mental context rather than a mathematically coherent understanding of social control mechanisms that influence interlocutors in cooperative activity. Workplace logics relate to future-oriented choices that employees make so as to obtain targeted production goals. But logics also hold an explanatory potential. They enable for the researcher to account for social systems that need to be designed before they are acted on. The objective for analysing workplace logics is to turn attention away from language and focus on activity systems. Successful action research facilitates for individual and organizational learning, the latter of which is rarely fulfilled in contemporary research.     

IP网QoS策略控制系统的研究

首先提出了策略控制系统的概念,然后介绍了策略控制系统的框架结构,最后在策略受控路由器中增加策略代理和主控程序模块,完成对IP网QoS(QualityofServices)策略控制系统的设计和仿真。     

A TQCS-based Scheduling Approach for Manufacturing Grid

IntroductionsIn 2000, Ian Foster refined the definition [1] of Grid as“resource sharing and coordinated problem solving indynamic, multi institutional virtual organizations”. WithOGSA (Open Grid Service Architecture) [2] as its systemframework, OGSI (Open Grid Services Infrastructure) [3]as its implement mechanism and GT3 ( GlobusToolkit3.0) [4] as its development software, Grid is nowbecoming a newparadigm for solvinglarge scale distributedresource …     

基于XMSF的建模与仿真研究

继HLA之后,建模与仿真(M&S)技术如何发展,是当前仿真界正在考虑的问题。美国国防部(DoD)2002年提出了可扩展建模与仿真框架(XMSF)报告[1],对Web技术如何支持M&S进行了深入研究。这一框架使新一代M&S应用的可重用性和互操作性有了进一步的发展。本文阐述了XMSF的概念,在分析HLA缺点的基础上利用XMSF思想对HLA进行了完善,并且就如何利用XMSF进行大规模仿真开发做出了启发性的指导。