系统的

The design of output feedback H(subscript ∞) controllers is discussed for nonlinear discrete singular systems. First of all, by means of generalized Lyapunov function and linear matrix inequalities, zero solution E-asymptotically stable is studied for the system, a sufficient condition is given such that the system is zero solution E-asymptotically stable and a H(subscript ∞) norm constraint. And the output feedback H(subscript ∞) controller is designed to guarantee the performance of the resulting closed-loop system.

主要对非线性离散广义系统的输出反馈H控制器的设计问题进行讨论，首先利用广义Lyapunov函数和线性矩阵不等式，对系统的零解E-渐近稳定性问题进行分析，在此条件基础上给出系统零解E-渐近稳定且具有H范数约束的充分条件，然后设计系统的输出反馈H控制器，使得闭环系统具有同样的性能。

In this thesis, the ISA and the Agent technologyies are deeply researched. According to requirements of ISA and characteristics of distributed information systems, the design scheme is presented and the audit systems architecture is constructed, which can collect distributed and multi-layer data and surpervise the condition of information system intelligently. This architecture has the better agileness and expansibility.

本文在深入研究信息系统审计技术和Agent技术的基础上，根据信息系统审计的需求和分布式信息系统的特点，基于多Agent技术，提出了审计系统的设计方案，构建了能够进行分布式、多层次数据采集和智能监测的审计系统体系结构，具有良好的灵活性和可扩展性。

Utilizing the topological structural theory,an analysis was carried out on the linking relation and constraint relation between key components of the prototype vehicle suspension frame system.The topological configuration of suspension system was established,and the performance calculation analysis on key compone...

运用拓扑结构理论，对原型车悬架系统关键零部件间的连接关系、约束关系进行了研究，建立了悬架系统的拓扑构型，并对悬架系统关键零部件进行了性能计算分析，为转矩套管式悬架系统的深入研究与开发奠定了理论基础。

The design on the receiver of Strong Current Source TEM and the data collection system. In order to increasing the depth of exploration and enhancing the measure precision, it need to decrease the minimal discriminable voltage, besides increasing the current intensity. 3. the program of interpretation software and precision of interpretation.

强场源瞬变大地电磁系统的接收机及数据采集系统设计问题在加大工作电流的同时，尽量降低系统的最小可分辨信号电平，这就意味着探测深度与精度的相对增大与提高，这对数据采集系统提出了更高的要求，要求数据采集系统动态测量范围大，最小可测电压的能力与信噪比高。

It describes mainly the process of systemdesign, including whole design, detail design, database design , security design, data structure and data code scheme, It introduces in detail how to create a graphic file of pipeline data on the MicroStation platform, and the exchange of data between the MicroStation and other GIS application software, At the same time, it introduces how to realize popular manage mode of GIS data on the MicroStation GeoGraphics, namely integratinggraphics and attribute.

本文在分析长沙市地下管线数据现状和目前数据管理情况的基础上，指出建立长沙市城市地下管网信息系统的必要性和紧迫性，阐述了系统的设计过程，包括总体设计、详细设计、数据库设计和安全设计，讲述了系统的数据组织方式及数据编码方案，并详细介绍在MicroStation平台下如何处理数据生成管网图形文件，阐述了系统实现的方法、过程以及与其它系统如何实现数据交换，也介绍在MicroStation GeoGraphics下如何实现当今GIS较为流行的数据管理模式：图属一体化。

This thesis researches on the choices and fixing of the instruments, the H- ADCP' s velocity representation of observing, the control system software etc; taking the successful invent of the tidal discharge automatic observing system in Tianhe hydrometrical station in the Pearl river delta as an example, and expounds the constitutes, function and working process of the tidal discharge observing system in the tidal river.

本论文对潮流量监测系统中的仪器设备选型、仪器设备安装、H-ADCP监测的流速代表性、系统控制软件等方面进行研究分析；并以珠江三角洲天河水文站潮流量自动监测系统的成功研制为实例，阐述感潮河流潮流量监测系统各组成部分功能及其实现过程。

Incurrent research, aiming at the rupture problem engendered in the shooting process of acertain 5.56mm automatic rifle, the strain and stress distributions on the cartridge caseunder the action of axial pull have been analyzed. Based on the theories of elastic-plasticmechanics and contact mechanics, a mathematic and physical model of the cartridge-caseand chamber system has been set up; and based on the platform of the general softwarepackage APDL of ANSYS for finite element analysis, a parameterized model of thecartridge-case and chamber system has also been established. The method for nonlinearFEA has been adopted to analyze the stress distribution on the entire cartridge-case andchamber system, and the method of contact element has been employed to investigate thecontact stress between the cartridge case and chamber, and then the influences of frictioncoefficient and locking space on the static and dynamic stress and strain response of thecartridge case and chamber to the action of power gas have also been discussed. On thebasis of a lot of numerical tests, a kind of element Plane13, which is concentrated incoupled computation of heat and construction, has been used finally to simulate thetransient response of the cartridge-case and chamber system to the power gas. Throughloading the temporary thermal characteristics of explosive gas in the procedure of emulate, the corresponding transient thermal stress distributed on the entire system under thecombined load of transient thermal stress and transient pressure has been obtained. Owingto these comprehensive considerations, the numerical results obtained in this paperrepresent the actual situations comparatively exactly.

本文针对某5.56mm自动步枪在工作中出现断壳的问题，分析了弹壳在轴向拉力作用下的应力应变；基于弹塑性力学及接触理论，建立了弹壳弹膛系统的数学、物理学模型，在通用有限元ANSYS软件的参数化建模工具APDL平台上，建立了弹壳弹膛系统的参数化模型；采用非线性有限元法计算了弹壳弹膛系统的整体应力，引入接触单元法分析弹壳和弹膛的接触压力，探讨了在不同的摩擦系数和不同的闭锁间隙对弹壳弹膛静、动态响应的影响；本文进行了大量的尝试，最后确定采用热、结构耦合单元Plane13，在计算中加载了火药气体的温度历程，成功的获得了弹壳弹膛系统在瞬态的热载荷和瞬态的压力载荷同时作用下弹壳弹膛系统的热应力数值解，考虑因素全面，比较真实的反映了弹壳弹膛系统在火药气体压力和热载荷下作用的情况。

Innervational system is an important part of the new fashioned simulation driving training system.

动感系统是新型车辆模拟驾驶训练系统的重要组成部分，它可以增强模拟驾驶训练的真实感，这是新型车辆模拟驾驶训练系统区别于现有车辆模拟驾驶训练系统的独特之处。

A narrowband interference has a greater power spectral density. Thus it will bring more strong devastation to the DSSS system than a broadband one does.So it is difficult for DSSS system to ensure a high quality of communication by itself when strong interference exists, even communication may be intermitted.

窄带干扰(Narrow-Band Interference，NBI)由于其功率谱密度比宽带干扰高得多，所以它对DSSS系统的破坏性更强，当有强窄带干扰存在时仅靠系统自身的抗干扰能力很难保证系统高质量的通信，甚至可能造成系统通信中断。

In the chapter 5, we make our experiments in the process of Record libratory management system , one part of the whole zheJiang TV Statation MIS. We do requirement analysis and extract the business rule information, and then apply MIS-AD system to construct the Model Information Library. Meanwhile, we put forward that how to develop the program in client side. Finally, we compare our system with the traditional system and bring forward the difference between them.

本文第五章对浙江省电视台综合信息处理系统中磁带库管理子系统的业务流程进行需求分析，并抽取业务规则信息，使用MIS-AD系统建立它的模型信息库；同时指出在系统实际开发过程中，如何基于MIS-AD来开发客户端程序；最后我们对比了基于MIS-AD开发的系统和传统的MIS系统的之间的差异。

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。