系统的

From systems analysis, design style, modular design, to the detailed test design of the system, all aspects of maintenance are descried in this paper.

本文简要介绍了《天裕保健品商城系统》的项目背景和意义，着重阐述了该系统开发实现过程，从系统的需求分析、风格设计、模块设计、详细设计到系统测试维护等各个环节都进行了详尽的分析和描述。

This paper mainly introduces the background and significance of "Tianyu Health Products Mart System "; focuses the development and implementation procedure of the system. From systems analysis, design style, modular design, to the detailed test design of the system, all aspects of maintenance are descried in this paper.

本文简要介绍了《天裕保健品商城系统》的项目背景和意义，着重阐述了该系统开发实现过程，从系统的需求分析、风格设计、模块设计、详细设计到系统测试维护等各个环节都进行了详尽的分析和描述。

This paper mainly introduces the background and significance of "Tianyu Health Products Mart System "; focuses the development and implementation procedure of the system. From systems analysis, design style, modular design, to the detailed test design of the system, all asp ects of maintenance are descried in this paper.

本文简要介绍了《天裕保健品商城系统》的项目背景和意义，着重阐述了该系统开发实现过程，从系统的需求分析、风格设计、模块设计、详细设计到系统测试维护等各个环节都进行了详尽的分析和描述。

In history and reality, the contradiction between needs and limited resource always exists. From the view point of system-science, it can be concluded that:①The interaction among need-contradiction-ability is the perpetual force for enterprise evolution (and the evolution of other living systems). The improvement of "ability"is the process and result of evolution.②The competition and coordination among systems is the direct power for enterprise evolution. Competition produces various system actions. Coordination makes systems complement their functions with each other. The interactions of competition and coordination push enterprise into the flow of evolution and optimization.③The"stochastic fluctuation"of the system, which is accidental finding, is another force for enterprise evolution. It is a deterministic element in the process of the self-organization of enterprise.

在历史和现实中，需要和满足需要资源稀缺之间的"问题"是恒久存在的，从系统科学的角度可以演绎出：①需要一问题一能力三种异质要素的相互作用是企业进化（其它一切有生命系统进化）的永恒动力，"能力"的提高正是进化的过程和结果；②各系统间的竞争与协同是企业进化的直接动力，竞争产生多样化的系统行为，协同则使各系统间优势互补，竞争与协同交互作用推动企业呈现出进化与优化的趋势：③系统的"随机涨落力"即意料之外的发现与创新是推动企业进化的又一种动力，它是企业自组织过程中带有必然性的力量：④在解决"问题"中创新者的作用不可低估，但更为根本地说创新者只是"需要一问题一能力"这三种要素相互作用的载体，个体的创新是企业自组织过程的必然结果。

Under the cases of the linear interconnected systems with all its subsystems are one dimension, a theorem to judge the properties of single loop interactions has been given; the study also indicated that the properties of interactions cann't independent of the properties of subsystems in the multi-loop interaction conditions, and a all field root locus method has been proposed to decide the properties of interactions; a interaction stabilizable theorem has been given, and the efficacy of interactions with respect to the interconnected systems has been configured, Some primary results are reported which are induced by using a method of computer aided test to study block interactions, the stationary feedback efficacy of closed loop interactions have been discussed and a stability guess has been proposed.

本文提出互连系统的合作稳定性概念及其原理，给出了互连系统的本原稳定度、稳定中心、回路关连的级数以及关连的性质等基本定义；并在此基础上对线性互连系统进行关连分析，给出了一系列涉及到关连与互连系统稳定性关系的命题、引理、定理及其证明；其中，在子系统都是一维的线性定常互连系统情况，得出了单回路关连性质判断的定理；并指出在多回路关连条件下，关连的性质不能独立于子系统的性质，以及用全域根轨迹法判断关连性质的方法；给出了关连可稳定理，并对关连对互连系统的影响作用进行了分析。本文还用机辅试验的方法研究块阵关连并给出一些初步结果，本中还探讨了回路关连的静态反馈作用并提出一个判稳猜想。

Combining with modeling analysis,the mathematic models for several common networked control systems are proposed using continuous and discrete system theories.

本文从网络控制系统的特点和要求出发，对网络时延及其对网络控制系统的影响进行了阐述，并与建模分析相结合，利用连续和离散系统理论建立了几种较为常用的网络控制系统数学模型。

This paper emphasized discussing safety-related control method and application device. The following several parts are the main content of this paper: 1、 Discussed the advantages and disadvantages of two kinds of Brake-by-Wire System, and chose Electro-Mechanical Brake system as research object. Established redundant disposure of hardware in Brake-by-Wire system.

本文着重讨论了线控制动系统与安全相关的控制方法和装置，其内容主要包括以下几个部分： 1、讨论了两种不同类型线控制动系统的优缺点，并选择电子机械式制动系统为研究对象，制定了线控制动系统的硬件冗余布置方案。

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。

Comparative study with triple module redundancy system and dual module hot standby system shows: the security of strategy 1 is greatest, but its reliability is lowest. The reliability of strategy...

与三模冗余和双机热备系统的对比研究表明，策略1的安全度最大，可靠度最小；策略2的可靠度最大，安全度在修复率为0.9时大于三模冗余和双机热备系统，在修复率为0时略低于三模冗余系统，而高于双机热备系统。

In particular the reasoning efficiency and precision of the expert system are improved further through self-learning the thresholds of monitoring parameters.

专家系统与一般的信息管理系统的区别不仅在于知识从流程中的分离(知识和知识使用是分离的)，更在于这些知识主要是经验知识，因此获取知识困难，开发专家系统要比一般的信息管理系统更复杂。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。