网络应用支持

These projects include: Demonstrative project of application of business of Internet of the generation below branch of Chinese telegraphic Shenzhen, China network of balefire of the item of multimedia terminal industrialization that to support the IPv6 broadband of broadcast application multimedia accepts communication of gateway industrialization project, resurgence to support mobile IPv6, Wuhan is finite project of research and development of supervisory system of liability company wireless video.

这些项目包括：中国电信深圳分公司下一代互联网业务应用示范项目、华为支持广播应用的IPv6宽带多媒体接入网关产业化项目、中兴通讯支持移动IPv6的多媒体终端产业化项目、武汉烽火网络有限责任公司无线视频监控系统研发项目、海尔集团IPv6宽带多模式接入终端研发及产业化项目、海信集团IPv6无线视频监控系统研发与产业化项目、川大智胜面向业务感知的下一代互联网流量控制设备产业化项目等。

To those who have spent a dozen years wrestling with balky PCs and their inexplicable crashes, disruptive and costly hardware and software upgrades, and insatiable demands for service and support, the network computer offers simplicity. Stripped of the hardware and software that complicate PC life and only capable of network access and display, the network computer relies on the network for virtually all software, services, processing, data, and resources.

那些已与体积大的pc机、莫名其妙的崩溃、中断和代价高昂的软硬件升级以及对服务和支持无止境的需求打了十几年交道的人来说，网络计算机提供了简洁性，去掉了使pc应用复杂化的软硬件、只留下网络访问与显示功能，网络计算机对软件、服务、处理、数据和资源几乎全部都依赖网络。

The thesis studies the difference between GWSs composition and traditional workflow applications, proposes the implement mechanism and technical architecture of GWSs composition and defines the reference model of GWSs composition platform, which provide holistic framework and top-level guidance for studying dynamic GWSs composition technology, designing GWSs composition platform, and implementing representative composite service applications.2、Theories and methods of composite process modeling and process analysis. This thesis proposes a meta-model of Geo-spatial Web services composition process defining from two aspects, i.e. process and resource. According to the process definition meta-model, we propose a new Geo-spatial Web services composition Process/Resource model based on extended WF-net, which effectively resolves the problems on uncertain activity option and dynamic variation of service in composite process model. A notion with regard to soundness of process model is proposed from three aspects, i.e. the structural correctness of process model, validity of data link and validity of resource. The notion of soundness definitely gives a dividing line on correctness of composite GWS process. This thesis analyzes sufficient and essential terms of soundness, and studies compositional property of WSCP/R-net models which provides an effective method to construct a soundness WSCP/R-net model. According to WSCP/R-net, the thesis proposes composition algebra and studies the properties of it. Based on the composition algebra, 6 kinds of composite process reduction rules are induced to optimize the process.3、Geo-spatial Web service QoS model and its application architecture. This thesis proposes an extendable GWS QoS model from three aspects, i.e. Geo-spatial Web Service itself, networking conditions and service consumer which can be used to distinguish GWSs with overlapping or identical functionality. We work over the QoS evaluation methods of composite GWS process which can be used to guide the execution, monitor and service selection of composition process. Aming at some disadvantages in traditional Web service discovery model for its lacking of QoS supporting, this thesis proposes a new service discovery model SDMQ supporting QoS constraints.4、Technologies of composite service executing. SSPL, a new composite service process language, is defined to overcome the disadvantages of existing composite services process languages which can not adapt to the dynamic variation of Geo-spatial Web Services. An algorithm is described to translate WSCP/R-net model into SSPL. The thesis studies the model of dynamic services selection with QoS global optimization, presenting an algorithm GODSS to resolve dynamic services selection with QoS global optimization in GWSs Composition.5、Design and implement experimental system and representative applications. According to the research findings presented above, we design and implement an experimental system and construct two representative applications to show that our achievements are effective and practical.

针对当前空间信息服务聚合研究中存在的若干不足，本文重点在基于工作流的空间信息服务聚合框架、空间信息服务聚合流程建模和分析技术、空间信息服务QoS模型及应用体系以及空间信息服务聚合流程执行等几个方面进行深入研究，主要工作和创新点包括：1、基于工作流的空间信息服务动态聚合框架：研究了空间信息服务动态聚合和传统工作流应用的不同，在此基础上提出了基于工作流技术的空间信息服务动态聚合实现机制、技术体系和参考模型，为研究空间信息服务聚合的关键技术、开发服务聚合支撑平台以及在此基础上构造特定的空间信息服务聚合应用提供了总体框架和顶层指导。2、空间信息服务聚合流程建模和分析技术：首先基于动态服务聚合流程建模的需求和空间信息服务动态变化的应用实际，从服务聚合的过程维和资源维出发定义了服务聚合流程定义元模型；与之相对应，对基本的WF-net进行扩展，提出服务聚合流程/资源网作为空间信息服务聚合流程的形式化描述模型，有效解决了现有的基于基本Petri网和工作流网的服务聚合建模方法所不能解决的不确定路径选择和服务的动态变化性问题；从流程结构正确性、数据依赖有效性和资源实现有效性三个方面提出了WSCP/R-net健壮性的概念，明确界定了聚合流程正确性的标准，并对WSCP/R-net模型的健壮性分析方法和WSCP/R-net模型的组合特性进行了研究；提出了空间信息服务聚合代数算子并对其性质进行了研究，在此基础上提出了6种聚合流程约简规则，从而可达到优化聚合流程、提高聚合流程执行效率的目的。3、空间信息服务QoS模型和应用体系：从服务本身、网络环境和服务消费者三个层次出发，提出了一个可扩展的空间信息服务QoS模型GSQM，实现了对空间信息服务的度量和评价，并对GSQM不同质量要素信息的客观、公正采集方法进行了研究；研究了空间信息服务聚合流程QoS评价方法，有效支持了空间信息服务聚合流程的执行、监控以及服务选择等操作；针对目前的服务发现模型仅支持服务功能性描述、不能有效满足空间信息服务应用需求的现状，提出了一种新的支持QoS约束的服务发现模型SDMQ，并对模型的实现框架进行了研究。4、空间信息服务聚合流程执行技术：针对现有的服务聚合流程描述语言不能有效满足空间信息服务动态聚合流程描述的特点，基于BPEL4WS提出了一种新的空间信息服务聚合流程描述语言SSPL；研究了满足健壮性要求的WSCP/R-net模型向SSPL的转换算法，在此基础上可以满足用户无显式编码来实现空间信息服务聚合应用的目的；研究了服务动态选择QoS全局优化模型，并在此基础上提出了一种解决服务动态选择QoS全局优化问题的实现算法GODSS.5、基于论文研究成果，设计实现了"空间信息服务聚合实验系统"，并构建了"矿产资源评价"和"城市消防应急响应"两个典型应用案例，对论文所述模型、方法的可行性和有效性进行了验证。

The Dawning/2000 Supercomputer is a general purpose parallel computer with the scalable cluster architecture, which supports technical computing, network service and data processing applications.In this paper, the design goals of the system software of Dawning/2000 are introduced.

引 言今天，可扩展的并行计算机系统正广泛地应用于需要更高性能的应用领域，如传统的科学与工程计算应用、决策支持和事务处理等商业计算应用、大型信息服务和网络服务、数字图书馆和视频多媒体系统。

TheAdvancestoIP Multimedia Subsystem architecture, built on the 3rd Generation Partnership Project 2 (3GPP2)'s Multimedia Domain, supports both IMS/MMD and non-Session Initiation Protocol services. In terms of network operation, A-IMS as extensions to IMS/MMD enhances the IMS/MMD network security with the addition of Security Operation Center, posture agent, etc. Some parts of the A-IMS framework are still under development sUCh as terminal support for the posture agent, security information exchange, and security policy definition.

改进的IP多媒体子系统基于3GPP2的多媒体域架构，包含了所有IP多媒体子系统/多媒体域业务功能，并增加了对非会话发起协议应用的支持；从网络运营的角度，针对IMS/MMD网络安全提出了一些扩展和补充，如增加了安全操作中心和姿态代理等，使IMS/MMD网络的安全性得到了较大改进。A-IMS仍处于框架性描述阶段，还有很多细节尚不明确，如终端对姿态代理的支持能力、安全信息交换的内容、安全策略的具体定义等，有待于进一步研究。

Based on analyzing regression analysis, neural network and the least square support vector machines that the three soft computing methods fitting for data fitting, in the paper try to use nonlinear regression analysis, the BP neural network based on Levenberg-Marquardt training algorithm, radial basis function neural network on orthogonal least square training algorithm and least square support vector machines for tracking the position of glass plate.

本文在分析适于数据拟合的回归分析、神经网络、最小二乘支持向量机这三种"软计算"方法的基础上，尝试将非线性回归分析方法，基于Levenberg-Marquardt算法的BP神经网络，基于正交最小二乘训练算法的径向基函数神经网络和最小二乘支持向量机应用于玻璃板位的跟踪中。

With innovative QACAS technologies,we resolve the crucial schedule problems for PCISA such as "when,what,how many,how" problems for servers. QACAS guarantee fast response,scalability,availability,manageability for PCISA system. Furthermore,QACAS improve the efficiency of resource utilization,resolve the problem of unexpectable and incontrollable QoS,providing cluster level support for the deployment of flexible differentiated service strategies.

QACAS通过创造性的集群QoS控制技术、集群容量规划与控制技术，解决了PCISA系统中服务器何时取、取什么、取多少、如何取等关键调度问题，保证PCISA系统满足快速响应性、高可伸缩性、高可用性、易管理性等集群系统基本性能要求，而且提高了系统资源的有效利用率，解决了服务质量无法预期和控制的问题，为网络应用实施灵活的区分服务策略提供了集群一级的支持。

The core work of this paper is developing a communication subsystem which supports the communication of multiplicate messages and many communication forms according to the applications of the network classroom, as well as applying the technology of load balance to the network classroom. Furthermore, it accomplished the whole design of the network classroom and the realization of the functions of the server and the client.

本文的核心工作是针对网络教室应用，开发了一个支持多种信息类型和多种通信方式的通信子系统，并将负载平衡技术应用于网络教室，以满足大规模用户的需求；另外还完成了网络教室的整体设计以及服务器、客户端基本功能的实现。

Can move on each type microprocessor, the compatibility is good; In the plastin is small, the efficiency is high, has the high modulation and the extension; Has functions and so on document and table of contents management, equipment support, multi-duties, network support, graph window as well as user interface; Has the massive application program interface; The embedded application software is rich.

能运行于各种类型的微处理器上，兼容性好；内核精小、效率高，具有高度的模块化和扩展性；具备文件和目录管理、设备支持、多任务、网络支持、图形窗口以及用户界面等功能；具有大量的应用程序接口；嵌入式应用软件丰富。

Mobile Agent, compared with traditional C/S model, is a novel network computing paradigm, which has some attractive features, such as dynamic adaptability, heterogeneity, robusticity and fault tolerance. It can effectively reduce the network traffic and delay, can be independent of different network protocols, and can also support mobile devices.

移动agent作为一种新的网络计算模型，与传统的客户机／服务器模型相比，具有动态适应性、异构性、健壮性和容错性，在分布式应用中可以降低网络流量、减少网络延迟、封装网络协议差异、支持移动设备。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。