查询词典 discrete continuous system

That not only could be extended to the continuous random varia- ble,but also the theorem of maximum information measure could be extended to the continuous random variable, which unified the measurement arithmetic of information between distributed random variable and continuous ran- dom variable,and gave two validating models to the information entropy of the continuous random variable in the last.

用公理化的方法，推导出了有限分布列的离散型随机变量的信息量系，不仅将它推广到连续型随机变量，而且将信息量系的最大信息量定理推广到连续型随机变量，统一了离散型和连续型随机变量的信息度量算法。最后利用得出的结论对连续型随机变量信息熵给出两个验证性算例。

The results show that the quantity of duplex impurity in CSP thin slab is minute. The size of crystal grain of the steel strip side along the width direction during continuous casting and continuous rolling,cold rolling and annealing is finer than that of the steel strip center and the phenomenon is more obvious duing continuous casting and continuous rolling than during other processes.

结果表明：包钢CSP薄板坯中复合夹杂的数量极少，在CSP连铸连轧及后续的冷轧薄板生产过程中，铸坯、热轧板、冷硬板和退火薄板沿宽向边部的组织均较中部的组织细小，且铸坯和热轧状态下较为明显。

The ecological socialism and the enviromental economics has partly realize the relation between the institution and resources continuous utilization and resources continuous utilization.The thesis insists that the capitalism leads to the uncontinuous utilization of resources, but the continuous utilization of resources results from the socialist public ownership. Firstly, the common ownership of property right of resources is the base of resources continuous utilization. Because the property right of resources belongs to the society in socialism, the partial interest and integrate interest are untied, as well as the short-term interest and long-term interest, which decides that the socialist owner of resources can抰utilize resources for individual interests like capitalist ones.

本文认为资本主义制度必然导致自然资源非可持续利用，社会主义公有制条件下具有自然资源可持续利用优势：(1)社会主义自然资源产权共有是自然资源可持续利用的客观基础，在社会主义制度之下，由于自然资源产权归全社会所有，局部利益和整体利益是统一的，暂时利益和长远利益是统一的，这就决定了自然资源的所有者不会利用自然资源去谋求不义之利，去损害他人的利益，不会像资本主义制度下满足某部分人的私欲，对自然资源可以统筹利用。

In order to use the existing production conditions sufficiently, by the quality control of the continuous-casting billet and hot sending process and the cooling process after rolling, especially the process controlling of Hot-Continuous-Rolling, realizing the small reduction ratio Hot-Continuous-Rolling production technics to produce big size steel stick upwards Φ 120mm using rectangular continuous-casting billet of 235 X 265mm, the lowest limit of 6.00 used in China currently is broken.

为了充分利用现有生产条件，通过控制连铸坯质量、热送和轧后冷却过程的控制，尤其是热连轧过程的优化控制，实现了235×265mm矩形连铸坯生产Φ120mm以上大规格棒材，热连轧压缩比突破了国内一般采用的6.00这个下限。

The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.

通过实验研究表明：(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺，所生产的Φ140mm和Φ125mm的大规格棒材，其低倍组织和机械性能均符合标准要求，该工艺是可行的；(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置，可以使加工变形渗透到铸坯的中心，这一点是实现小压缩比热连轧生产工艺的关键；(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用，但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区，为保证最终轧材良好的表面质量创造了有利的条件；(4)小压缩比热连轧生产与铸坯质量控制，热送过程控制以及轧后冷却控制密不可分。

The observability of hybrid system involves initial discrete states, continuous states and discrete state switched time.

混合系统的可观性包括初始的离散状态和连续状态，以及离散状态的切换时间。

Firstly, the recent developments in controllability and observability for switched system are reviewed. Secondly, by means of properties of invariant subspace, the controllability for switched systems with continuous-time and discrete-time subsystems, and a class of discrete impulsive switched systems is respectively investigated. Some sufficient and necessary conditions of controllability are proved. In the end, some simple criterions for controllability and observability of switched symmetric composite systems are set up.

首先介绍了切换系统能控性与能观性方面的一些重要结论；其次，用不变子空间的性质分别研究了同时含有连续子系统和离散子系统的切换系统和一类离散脉冲切换系统的能控性，建立了相应的充分性与必要性判别准则；最后，研究了切换对称组合系统的能控性与能观性，得到了此系统能控性与能观性的简单判据。

This course includes (1) Discrete time signal and systems,(2) Z transform,(3) Continuous-time signal sampling,(4) LTI system,(5) Discrete time systems,(6) Filter design,(7) DFT,(8) FFT.

课程内容包含：(1)离散时间信号和系统，(2) z转换，(3)连续时间信号的取样，(4)线性非时变系统的转换分析，(5)离散时间系统的结构，(6)滤波器设计技巧，(7)离散傅氏转换，(8)使用离散傅氏转换以对信号做傅氏分析。

Four basic processes are analyzed in detail in network security decision,which are the base of NSDSS security decision. Then, developing strategies and methods are analyzed according to the objective and task of the system. Antetype method with RAD speciality is chosen to lead the developing process of the system. The structure of "Four-Base and Seven-System" of NSDSS is decided, based on which, the Function and Structure of Man-Machine Conversation system, General Management system, Data Base system, Model and Method Base system, knowledge base system, Causing and solving problems system are discussed. The basic theories and methods of each part are discussed. In the designing process of Model Base System, detailed analysis is given to the models of prediction, evaluation and management in the course of security decision. Moreover, basic process and method are discussed on question generation and solution. Then, detailed explanation is provided on the integration and implement of the system. After that, it is suggested that implement of the system should be carried through the process of the system.

论文首先对NSDSS涉及到的相关知识进行了讨论，详细分析了网络安全决策中的四个基本过程，这是NSDSS进行安全决策的基础；随后依据系统的目标和任务，对系统的开发策略和方法进行了分析，选择具有RAD能力的原型法指导整个系统的开发过程；确定了NSDSS"四库七系统"的整体结构；在此基础上，分别探讨了人机对话系统、通用管理系统、数据库系统、模型库和方法库系统、知识库系统、问题生成和求解系统的功能和结构，对各部件的基本原理和实现方法进行了论述；在模型库系统的设计过程中，对安全决策过程中运用到的安全预测、安全评估、安全管理等模型进行了详细的分析；仔细探讨了问题生成和求解的基本过程和方法；较为详细地阐述了系统集成和实施的有关问题，面向系统的成功实现，提出了将系统实施贯串于整个系统开发过程中的思想。

In this thesis, how to study and apply of system of CRM based on Web are discussed. Firstly, we summarize the principle of CRM, beginning with the current research condition, and introduce the concept, features and management principle of CRM. Secondly, we illustrate the basic architecture of web-based CRM system to form the basis of the further research and propose the integration of CRM system to the front end of enterprise, namely, the study on the business process re-engineering of CRM system. Then we discuss the key technique knowledge on CRM system based on Web, which included the technology of system interface, system safety and the design of net framework. And explain the technology of web service is a good solution to the problem of system interface in the Internet and the advantage of the develop way based on the B/S pattern. According to an application of CRM system based on Web, this thesis explains how to set up a CRM system based on Web, which include the customer requirement, analyzing the business process, system framework and system safety. At last, this thesis puts forward the extensive foreground of the system of web-based CRM with the expanding of the web technology and explains that there are some questions are to be resolve stilly in this thesis.

本文的研究内容首先从客户关系管理的研究现状出发，对客户关系管理加以概述，阐述CRM系统概念、系统特点和核心管理思想；并阐明了基于Web的CRM系统的基本架构为进一步的研究作铺垫，提出CRM系统对企业前端的整合，即对CRM系统的业务流程重构的研究；接下来说明基于Web的CRM系统开发的关键技术，包括系统体系结构的选择，系统接口以及系统安全三方面的技术要求，具体说明了B/S模式的原理及优点，Web Service是解决基于B/S模式系统的接口问题的最好方案；然后以一个销售管理CRM系统为例，说明如何构建一个基于Web的CRM系统，包括了系统设计要求、系统实现、系统功能框架和系统安全机制；最后根据当前通信和网络技术的发展，展望基于Web的CRM系统应用的广泛前景，并对在本文研究中还存在需要改进的地方进行了探讨。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。