分布式系统

First,from this kind of conversion system,the characteristic of space antithetic and the dual distributed for power and data flows are analyzed. According to the concept of power electronics building blocks,a networked distributed control strategy is reviewed,and the building process of the application system is presented.In addition,the theory of standardization for complex power conversion system is summarized.

首先，论文以复杂系统为研究对象，分析了应用系统的功率流和信息流在空间结构上的对偶关系和双重分布的特性；在电力电子集成模块(Power Electronics Building Blocks，PEBB)的基础上，研究了变流系统的网络化分布式控制方案，并得出系统组构的初步构想，总结出适合复杂电力电子系统集成的标准化理论。

Among the diversity of security technologies, intrusion detection technology is one of the focuses. This thesis at first elicits the situation of nowadays intrusion detection technology and Intrusion Detection System after explaining the basic concept of intrusion detection. Then on the basis of analyzing some representative IDSs the shortcomings existing in traditional IDS are presented, such as being lack of distribute distributivity, flexibility, interoperability etc. Therefore new technologies are needed for explored to improve the overall performance of IDS.

入侵检测系统是目前网络安全领域的一个研究热点，本文首先从入侵检测的基本概念出发，阐述了入侵检测技术以及入侵检测系统的发展现状，通过分析当前一些有代表性的入侵检测系统指出了入侵检测系统存在的一些不足，在很多地方还有待改进，如分布式、灵活性、效率等方面，需要探索新的技术来提高入侵检测系统的整体性能。

The system includes main server program algorithm, sub-server algorithm and client algorithm. It solves communication problem between all the processors and evolutes scheme design and detail design hierarchically and synergically.

最后建立分布式并行计算环境，设计基于遗传算法的基坑支护分布式三层协同演化系统，分别构造主服务程序算法和子服务器算法程序及客户机输入界面，解决客户／服务器之间的通信、主服务器与子服务器之间的通信问题，对方案和细部、细部和子细部进行分布并行协同搜索，获得出最优方案。

When J2EE is used as standard platform and circumstance for Java2 enterprise system exploitation, its different from traditional application programming model. J2EEi use modules to design, develop, assemble and deploy enterprise application programming. It also defines a standard suite of module and affords integrated service, which predigests the exploitation of distributed enterprise application.

J2EE是SUN公司推出的一套面向企业级的分布式体系，作为使用Java2构建企业系统的标准平台和环境，与传统的应用程序编程模型有很大的差别。J2EE架构采用组件的思想来设计、开发、装配及部署企业应用程序，定义了一套标准化的组件，为这些组件提供了完整的服务，简化了分布式企业级应用的开发。

It is meaningful how to use information technology means (including multimedia, network, and virtual reality) for training, and keep going on to study the cases of dealing with burst out affairs and turn over fear, making of hammer-harden of learner synthesis diathesis.

本论文从武警部队初级指挥学院教育训练的现状出发，指出目前武警初级指挥院校在运用信息化手段进行教育训练方面存在的不足，在以建构主义学习理论为代表的先进的教育学习理论指导下，运用分布式虚拟现实技术、Agent技术和知识管理技术，依托武警初级指挥院校现有的良好网络基础设施，设计一个面向武警初级指挥学员综合知识学习与指挥能力培养的分布式虚拟训练系统，并进行原型设计与实现，目的是为初级指挥员综合指挥培训创设虚拟训练平台，作为实训教学的有效补充。

By the modem time series analysis method, based on the ARMA innovation model, under the linear minimum variance optimal information fusion criterion, three distributed fusion steady-state optimal Kalman filters, predictors and smoothers weighted by matrices, scalars, and diagonal matrices are presented for multisensor systems with correlated input and observation noises, and with correlated observation noises. The Lyapunov equations and formulas of computing local filtering, predicting and smoothing error variances and covariances are given, which are applied to compute optimal weights. The corresponding three distributed fusion Wiener state estimators are also presented.

应用现代时间序列分析方法，基于自回归滑动平均新息模型，在线性最小方差最优信息融合准则下，对于带相关输入噪声和观测噪声和带相关的观测噪声的多传感器系统，提出了按矩阵加权、按标量加权和按对角阵加权的三种分布式融合稳态Kalman滤波器、预报器和平滑器，其中提出了局部滤波、预报和平滑估值误差方差阵和协方差阵的Lyapunov方程和计算公式，它们被用于计算最优加权，也提出了相应的三种分布式融合Wiener状念估值器。

Each PCB part of system is analyzed and researched based on the characteristics of distributed fiber optic temperature signal.

采用神经网络对分布式光纤温度信号进行处理，提高分布式光纤温度传感系统的空间分辨率和温度分辨率。

Under the steering of the architecture model and management mechanism proposed in this thesis, an intelligent, self-adapting and scalable hierarchical distributed network management system is constructed on the CERNET. Then it was successfully checked and accepted by Ministry of Education, and is widely used in practice.

在本文提出的分布式网络管理体系结构模型和管理机制的指导下，以CERNET网络为依托，我们实现的具有一定智能的、自适应、可伸展的层次型分布式网络管理系统已经顺利通过教育部的验收，并成功地应用在网络管理的实际工作中。

Broadcast and directory protocols Examples: multiprocessors, distributed shared memory, distributed file systems

广播与目录协议范例：多处理器，分布式共享内存，分布式文件系统。

This paper introduces the distributed construction pattern based on OAS protocol of dissertation system in universities and briefs on the superiority of this pattern.

文章介绍了高校学位论文系统基于OAI协议的分布式建库模式，并简单叙述了这种分布式模式的优势所在。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐