分布式系统

Based on a component model of application system in which three types of the basic components are discussed, this paper first focuses on the "semantic" interoperability among components, and presents a Primitive-Semantic component constructing method through a semantic model to deal with the semantic interoperability while the communication protocol among components doesn't exist. It then presents a composable Distributed Virtual Reality Component-Based Architecture, including its key mechanism and algorithms.

指出分布式虚拟现实系统中存在的3种基本构件；重点讨论构件的"语义"互操作问题，通过建立构件的语义模型，提出一种原语-语义构件的构件构造方法，该方法可以解决不存在通信协议情况下的构件之间"语义"互操作问题；给出一种支持可组装的分布式虚拟现实应用系统的基于构件的体系结构以及其中的核心机制和算法。

Maintaining the data consistency is a critical technical problem in the distributed database system .

1引言分布式数据库系统在系统结构上的真正含义是指物理上分布、逻辑上集中的分布式数据库结构。

Distributed database system is a main research direction in the database field. Maintaining the data consistency is a critical technical problem in the distributed database system .

分布式数据库系统是数据库领域中的一个主要研究方向，数据一致性维护是分布式数据库系统中的一个非常关键的技术问题。

In addition, the generalized model of distributed energy system is established on the basis of the analysis of.

本文以具有巨大潜在市场的建筑物分布式能量系统为研究对象，研究了分布式能量系统在我国的可行性。

In the future, the mainstream of our country's locomotive control device must be distributed control system.

本文在参阅大量文献和国际机车通信标准的基础上，对分布式控制系统做了深入的研究，设计了基于分布式结构的内燃机车的控制系统。

The modeling classifies and defines on system function compartition, control function, hardware structure and design means of software.

论文主要分为八章，各章节的主要内容如下：第一章首先讨论了分布式计算机控制系统的发展情况及现状，讲述了制造过程中自动化检测的重要意义，在这两者的基础上提出了分布式测控系统。

The research indicated that the distributional integration competitive intelligence system to the virtual Enterprise is necessary and feasible in technically.

研究表明，竞争情报系统的分布式集成对虚拟企业的运行是必要的，构建基于虚拟企业的分布式竞争情报系统在技术上是可行的。

Distributed storage system can improve system performance and scalability, but the manageability and Usability is poor.

分布式存储能提高系统的性能，尤其是可扩展性，但维护和管理分布式存储系统的费用非常高。

Its software development tool are very important to the applications of virtual reality technology because of the rapid development of network technology Being aimed of the shortcoming that the development for the distributed parallelism of simulation computing unit is not enough and formal in current distributed virtual environment systems, we study the modeling language of virtual environment and the system architecture of distributed virtual environment in a new view point, build a complete extensible theory framework novelly for the research of virtual environment technology.

本文针对当前分布式虚拟环境系统对仿真计算单元的分布并行性开发不够充分和规范的缺点，从一个全新的角度来研究虚拟环境的建模语言及其分布式虚拟环境的系统结构，开创性地为虚拟环境技术的研究建立了一个全面可扩展的理论框架。

In order to improve resistive capability of computer and network system,based on Multi-agent,a distributed network intrusion detection model and a distributed network intrusion detection system are presented.

针对当前形势，为了提高计算机及网络系统的防御能力，提出了一种基于多主体的分布式网络入侵检测模型，研究了基于多主体的分布式网络入侵检测系统。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。