移动办公平台架构及关键技术

本文针对目前移动办公终端类型多样,移动办公系统对视频业务支持力度不够和不能有效利用Internet资源的问题。本文通过对3GIMS、J2ME和J2EE的研究分析,提出了适应3G发展的移动办公平台架构。该移动办公平台架构下实现的移动办公业务可以运行于不向类型的移动终端并且能够与Internet中的办公终端协同工作,同时支持包括视频在内的各种多媒体业务。     

*.SWF格式文件转为*.FLA格式文件的关键技术

使网上共享的*.SWF格式文件编辑成所需风格,实现*.SWF格式文件转为*.FLA源文件关键技术.     

油气井钻进钻铤进动特性仿真研究

油气井钻进破岩过程发生于地下几千米,难以获取井底钻具组合的运动状态.井底钻具组合与岩石的相互作用产生多种形式的振动及振动的耦合.为进一步研究破岩引发钻进中振动的产生机理,建立了井底钻具组合钻铤段非线性动力学模型,通过数值仿真,分析了破岩过程中转速、钻井液、井底钻具组合偏心距、摩擦等对钻铤段旋转进动的影响.数值研究表明,...     

大数据智能化背景下程序设计课程线上线下混合教学模式构建

大数据智能化背景下程序设计课程是专业发展的基石.文章对程序设计课程教学模式存在的问题进行了分析,对程序设计课程培养的核心能力体系、语言-课程-平台一体化、线上线下混合教学模式、教学考核和能力训练平台构建进行了研究,希望对推进程序设计课程混合教学模式改革有所帮助.     

Agent-Based Systems for Intelligent Manufacturing: A State-of-the-Art Survey

Agent technology has been considered as an important approach for developing distributed intelligent manufacturing systems. A number of researchers have attempted to apply agent technology to manufacturing enterprise integration, supply chain management, manufacturing planning, scheduling and control, materials handling, and holonic manufacturing systems. This paper gives a brief survey of some related projects in this area, and discusses some key issues in developing agent-based manufacturing systems such as agent technology for enterprise integration and supply chain management, agent encapsulation, system architectures, dynamic system reconfiguration, learning, design and manufacturability assessments, distributed dynamic scheduling, integration of planning and scheduling, concurrent scheduling and execution, factory control structures, potential tools and standards for developing agent-based manufacturing systems. An extensive annotated bibliography is provided.     

Unicast-based multicast communication in wormhole-routed networks

Multicast communication, in which the same message is delivered from a source node to an arbitrary number of destination nodes, is being increasingly demanded in parallel computing. System supported multicast services can potentially offer improved performance, increased functionality, and simplified programming, and may in turn be used to support various higher-level operations for data movement and global process control. This paper presents efficient algorithms to implement multicast communication in wormhole-routed direct networks, in the absence of hardware multicast support, by exploiting the properties of the switching technology. Minimum-time multicast algorithms are presented for n-dimensional meshes and hypercubes that use deterministic, dimension-ordered routing of unicast messages. Both algorithms can deliver a multicast message to m-1 destinations in [log ₂ m] message passing steps, while avoiding contention among the constituent unicast messages. Performance results of implementations on a 64-node nCUBE-2 hypercube and a 168-node Symult 2010 2-D mesh are given     

基于多主体的协同工作系统

文章主要介绍智能协作办公系统ＩＣ－ＯＦＦＩＣＥ中的异步协作功能及其实现技术。ＩＣ－ＯＦＦＩＣＥ系统是将ＭＡＳ技术和ＣＳＣＷ技术相结合而研制的协同办公原型系统,系统通过构造办公助手主体、协作控制主体、信息共享主体、协作文件夹管理主体、工作流管理主体、知识库管理主体、文档管理主体等多个智能主体,支持办公人员实现协同工作和信息共享。     

Petri网在通信网络仿真建模中的应用

计算机仿真是通信网络技术研究中的一种非常有效的分析工具,而Petri网是一种应用非常广泛的建模工具,为了设计和开发通用的通信网络仿真系统,该文将Petri网技术应用于仿真建模过程中,所建模型简洁,直观且含义准确。     

多主体系统的建模技术研究

为了有利于多主体系统的开发,目前急需一种系统建模技术来对系统复杂性进行行之有效的管理。由于面向对象的建模技术已经趋向成熟,该文在面向对象的建模方法的基础上阐述了一种面向主体的建模方法。该方法针对基于一种特定BDI结构的主体,它包括从内部观点建构信念、目标、计划模型（ 即所谓的BDI模型 ）和从外部观点建构单个主体模型和交互模型。而且,该方法也能容易地进行扩展并应用于其他结构的主体建模。文章对各个模型的建造作出了详细介绍。     

防火墙及其安全策略

本文论述了Firewall技术的基本特征及安全方面的策略。