分布式系统

The paper conducts comparisons on the technology of constructing WebGIS and domestic and foreign WebGIS software platform;analyzes the advantages and the disadvantages of these technical and these softwares;Introduces Extensible Markup Language XML and its correlation technology, Geography Markup Language GML, the Web service and interoperable agreement that OGC formulates;constructs distributed and interoperable WebGIS prototype system based on web service,realizes the spatial data interoperability, solves the problem of multiple source and isomerism space data share and interoperability.

本文对构建WebGIS的技术和国内外WebGIS软件平台进行了比较，分析了这些技术和软件的优缺点；介绍了可扩展标记语言XML及其相关技术、地理标记语言GML、Web服务和OGC制定的互操作协议；构建了基于Web服务的分布式互操作的WebGIS原型系统，实现了空间数据的互操作，解决了多源异构空间数据的共享与互操作问题。

VI The interface between multi-body simulation system and I-DEAS is developed, and the visual simulation of self-propelled gun is fulfilled based on the I-DEAS platform. Multi-media shows of self-propelled gun are accomplished including curve simulation, texturing, lighting technology voice effect, flame effect, etc. VII Distributed real-time dynamics simulation system for virtual self-propelled gun, which is a solid basis for virtual-reality gun, is set up through LAN, based on TCP/IP protocol, OpenGL, Client/Server, Object Oriented, etc.

在3D MAX开发环境中，利用纹理、光照等技术进行了自行火炮的真实感建模，通过曲线拟合，模拟火炮各个部件在发射过程中的运动规律，并结合声音和炮口火焰效果，实现了自行火炮发射动力学的多媒体描述。7、基于TCP／IP协议、OpenGL、Client／Server、面向对象等技术，在LAN平台上建立了火炮发射动力学分布式实时仿真系统，为研究虚拟火炮打下了坚实基础。

A distributed intrusion detection system with hierarchical structure and self-security was designed to monitor the running context of the system, and the rules were mined in intrusion detection from MIB according to the essence of network attack.

完成分布式多层次结构化的具有自安全性的入侵检测系统的开发，达到管理代理对网络和主机监听目的。

In order to solve dynamic, complicated and uncertain problems, multi-agents based distributed intelligence decision support systems, description and decomposition of complicated decision tasks, and cooperation and reasoning among multi-agents are elaborated in this paper. The details are given as follows. 1. Agent and ABDIDSS modelsIn allusion to the current problems of research on agents theory models, payoff and probability factors are introduced on the basis of mental state models of classical BDI of agent and joint BDI of multi-agents in this paper, mental state models of individual agents and joint metal state models of group agents based on payoff and probability factors are built up. Introducing payoff and probability factors satisfies requirements of uncertainty and self-benefit of agents to the environments.

本文针对动态的、复杂的以及不确定问题，以基于多Agents的分布式智能决策支持系统及复杂决策任务的描述与分解、多Agents之间的协作与推理机制为研究内容，具体的研究内容如下： 1、Agent和ASDIDSS模型针对当前多Agents理论模型研究存在的问题，文章在经典Agent的BDI以及联合BDI等心智状态模型基础上引入效用与概率因子，建立基于效用与概率因子的个体Agent的心智状态模型以及群组Agent联合心智状态模型，引入效用与概率因子满足Agent对环境的不确定性以及自利性的要求。

This thesis is mostly devoted to the architecture and software issues, including the structure of simulation, the control system of aeroengine, modeling of gas-turbine engine, and the communication of distributed simulation system.

涉及到了总体方案设计、数控系统的构成、发动机模型建立方法、分布式仿真的通信技术、数据采集等问题。

Structured system employs a scalable scheme to guarantee search success, but it needs to maintain strictly controlled overly network, it is difficult to adapt to highly dynamic network environment of P2P. In addition, the use of DHTs leads to the fact that only keyword exact-match is available.

结构化系统使用可扩展的方法能保证查找的成功，但由于要维持严格控制的叠加拓扑，因此对P2P网络中大量节点的动态变化适应性较差，且由于分布式哈希表的使用使其只支持精确查找。

The distributed data fusion can rise the system's reliability and surv...

分布式多传感器信息融合能够提高系统的可靠性和可信度。

In a distributed system, the key of data fusion are track correlation and hierarchical estimations.

在分布式多传感器系统中，信息融合的关键是解决航迹关联与分层估计问题。

SIP system adopts the distributing structure of Internet absolutely. It has high flexibility and expandability.

系统平台完全采用Internet的分布式的体系结构，具有高度的灵活性和可扩展性。

Nowadays, with the rapid development of distributed power generation, such as photovoltaic and fuel cell, grid-connected run mode has more and more showed its virtue.

近年来，随着光伏发电、燃料电池等分布式发电系统的迅速发展，并网发电模式也越来越体现出它的价值。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。