实现的

Based on the research results of Chaos theory, in this dissertation, it has made detailed analysis of the chaotic signal generator. Firstly, the characteristic and various detection methods of chaotic signal are recommended. Secondly, with the aid of software, such as MATLAB, PSPICE, EWB, etc, discussion of the process of generating chaotic signal proceeds. Through simulation, the output result of several kinds of chaotic circuit are analyzed and compared. Thirdly, aiming at Chuas chaotic circuit, through debugging, the impacts by components and parts in the circuit, such as operation amplifier, capacity, inductor, etc, has been further investigated. And then provides a new scheme to implement Lorenz chaotic system, the circuit design and analysis are presented in detail and it can be realized by the hardware of programmable arrays FPGA, the experimental results indicate that this scheme has the advantages of easy operation, flexible design and high efficiency. An application example in secure communications is also provided. Finally, through picking up the characteristic parameter-Lyapunov exponent of the Chaos we can analyze the performance of different chaotic signal generators.

本文在混沌理论研究成果的基础上，对混沌信号的产生做了详细的分析，涵盖以下内容：首先介绍了混沌的定义，混沌信号的基本特性和各种判别方法，特别是对简单的一维Logistic映射的硬件实现问题做了初步探索；其次对混沌信号的产生方法进行讨论，借助于MATLAB、PSPICE、EWB等仿真软件，对几种混沌电路输出的混沌信号进行了分析比较，并在此基础上针对典型三阶连续自治系统Chua's电路作进一步实验研究，通过混沌电路调试，深入研究电路中各元器件，特别是运算放大器、电容、电感等对混沌信号时域以及频谱的影响；再次研究连续混沌系统的数字化硬件产生，设计了Lorenz混沌电路在现场可编程门阵列FPGA上实现的新方案，在保密通信中的应用实验结果表明该方案具有操作简单、设计灵活、效率高等优点；最后针对不同混沌系统，采取不同算法，提取混沌特性参数Lyapunov指数，进而对不同的混沌信号发生器的性能进行了分析。

The drain installations of city management is an important key link of civicism job, this text aim at the request of the drainage pumping station of city, design and implement a drainage pumping station remote monitoring system, the system falls into two part, upper monitor and lower monitor, thereinto , the function of upper monitor must have: setup system parameter, data pandect ,trends curve, view the alarm, data search, report form print and remote control, upper monitory user can look over the related information of pumping station, and control the pumping station when the pumping station allowable; the function of lower monitor must have: get real-time data and send the data, get alarm data and send alarm data, alarm tips, switch control mode and control pumps, lower monitor is a simulation application in pumping station, simulate the control and running about pumping station.

城市排水设施的管理是市政工作中的重要环节，本文针对城市排水泵站的需求，设计并实现了一个排水泵站计算机远程监控系统。系统分为上位机和下位机两部分，其中上位机实现的功能为：参数设定、数据总揽、趋势曲线、报警一览、数据查询、报表打印和远程控制，上位机的用户可以查看泵站的相关信息，并且能在下位机允许的情况下进行远程控制；下位机的功能为：实时数据获取和发送、报警获取和发送、报警提示、控制模式切换和控制功能，下位机是一个对泵站模拟的程序，模拟泵站的控制和运行情况。

In the future,network virtual community become more and more variously , more and more like reality.even better than reality for its excitiment and amusement.what realty have exist in fictity.what can not realise in realty is easy to do in fictity.you can marrige with your lover,you do business with your cooperation,you can speculation on stocks,you can make friends,you can do every thing you want unless some thing not allowed in law,which make the bound become more and more fuzzy betwen fictity and reality.people will mist easily between them for a long time.it is scareful to face such blurred phenomenon.so for those who have not enough ability to distinguish ,especiely youth and children,it is easy to lost themselves.

不久的将来网络虚拟社区会越来越全面。跟现实几乎一模一样，甚至比现实的东西还要全面刺激。现实中有的虚拟空间里都有，现实中无法实现的可以在社区里得到满足和实现。可以在虚拟社区里结婚生子，做生意，炒股票，交朋友等等。这样虚拟和现实的界限会越来越模糊，时间久了人们就会在两者之间迷离了，形成虚拟和现实的交错现象。有时候想想也挺可怕的。所以对于没有做够判断和分辨能力的人来说，特别是青少年和儿童，真的容易迷失自己。

Adopt now of using and editting collected materials machine and imitate the true method that machine realizes, is to aim at the engagement edit collected materials the language phrasing rule, putting forward and realizes a kind of adoption scan of edit collected materials the calculate way, in phrase method analyze and analytic mold in phrasing piece, introduced two software for in design process that edit and translate machine would usually usings:Lex and YACC usage.

现采用的用汇编器及仿真器实现的方法，是针对约定的汇编语言语法规则，提出并实现了一种采用一边扫描的汇编算法，在词法分析与语法分析的模块中，介绍了两个在编译器的设计过程中经常会用到的软件：Lex与YACC的使用。

So its important for network managers to develop system to monitor network traffic, attacks and resources. It will help network managers to manage network more effectively.The article analyzes two normal approaches to realize network monitor, one is based on packets captured and another is based on logs generated by network gateway. Then, it introduces the three common kinds of log format, syslog, traffic log and WELF.

本文首先分析了网络监视系统实现的常用技术，基于包捕获的技术和基于网关设备日志分析的技术，接着详细分析了三种通用的网络设备日志——Syslog格式日志、Traffic Log格式日志与WELF格式日志，在此基础上详细介绍了本文的重点，基于网关日志分析的网络监视系统一LNMS (Log-based Network Monitor System)的设计和实现。

T To maintain, manage, deal with, dispose of and subject to the provisions of this Our Supplemental Charter and of the Statutes to invest all the property, money, assets and rights of the University in such stocks, funds, shares, securities or investments whatsoever and wheresoever situate (whether authorised by the general law for the investment of trust moneys or not so authorised) as the University shall think fit or in the purchase of land in Our United Kingdom whether by way of investment or for occupation and subject or not subject to leases or tenancies and to vary any investments including the realization of existing investments and to re-invest the net proceeds of the realization, provided that in the case of moneys held by the University as trustee the powers hereby conferred shall be exercised subject to the provisions of the law relating to investment by trustees.

对一切财产，金钱，资产和学校权利用于在股票，基金，股份，债券或无论何种何处（不论是否由信托资金投资一般法授权与否）校方认为合适的投资，或者在联合王国内不论是否通过投资或占用与否、是否依据租赁或租用的土地购置，其保存、管理、处理、安置以及依据此补充特许证和法规的条款的投资，对包括实现现有投资的任何投资的变更，以及净收入实现的再投资，只要在校方作为资金持有保管人情况下，由此授予的权力应当按照投资相关法律条款由保管人执行。

In this dissertation, the modern engineering technology was introduced into the planting of ginseng, studied the distribute intelligence control system of greenhouse, in which ginsengs would be planted.

系统上位机采用Visual Basic 6.0编写程序，设计出简单实用的界面，并实现串口通信，能够显示、存储、查询现场数据，对数据进行分析、处理，并做出正确决策传送给下位机；下位机软件采用汇编语言编写，实现的功能包括：对传感器采集到的环境信息的初步处理，把整理后的数据发送给上位机，根据上位机下达的指令或者自身的控制规则驱动执行机构调节温室环境。

It seems natural to assume that by setting a goal that's Specific, Measurable, Attainable, Relevant, and Time-bound, we will be well on our way to accomplishing it.

目标设定应该符合以下原则，目标应该是明确的、可衡量的、可实现的、相关的和有时间限制的。按照这样的原则来设定的目标，将有助于我们更好更快的实现目标。

But the game seems more a number of purpose: the TFC, the blue team and red team players in the traditional Capture the Flag mode is never-ending each other,"killing"; in CS, the players will have the opportunity to play a courageous, fearless pioneer of law enforcement - become a member of anti-terrorist commando, if you're "ruthless" enough "bad" words, or your own in order to achieve a may never achieve the "dream evil"(hopefully forever do not realize), you can join in the middle of a group of heinous terrorists, never mind the police and will be a "nightmare"- murder, robbery, bombings, kidnapping will be you, an armed mob part of everyday life!

不过游戏的目的性似乎更强了一些：在TFC中，蓝队和红队的队员们在传统的夺旗模式下只是永无休止相互&杀戮&；而在CS中，玩家将有机会扮演一个英勇无畏、勇往直前的执法先锋——成为反恐怖突击队中的一员，如果你够&狠&、够&坏&的话或者你为了实现自己一个可能永远无法实现的&罪恶梦想&，你可以投身于一群十恶不赦的恐怖分子中间，并将成为一个警方心中永远的&梦魇&——暗杀、抢劫、爆炸、绑架将成为你，一个武装暴徒日常生活的一部分！

The system is the main chapter on e-commerce in today's society in the development, and the system introduced by the use of technology and put forward the purpose of this research; the second chapter of the main-line shopping system analysis, simple introduction of the various components of the system modules and their functions; Chapter III, respectively, described in detail how each module and will be managed to achieve in its use, and in this chapter describes in detail database management, is through the application of SQL Server 2000 software to achieve, and also introduced a system maintenance management and system security management.

该系统第一章主要讲解了电子商务在在当今社会上的发展，及其该系统所运用技术的介绍，提出了本课题研究的目的；第二章主要是对网上购物系统的进行了分析，简单的介绍了系统的各个组成模块及其功能；第三章分别详细讲述了每个模块的如何进行管理并且将其运用到实现中去，在本章中详细介绍了数据库管理，是通过应用SQL Server 2000的软件来实现的，还分别介绍了系统维护管理和系统安全管理。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。