基本原理

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。

This paper introduces the real number domain and limited domain of the definition of Elliptic Curves, it introduces the basic principles of Diffie-Hellman key exchange in detail which bases on the definition of Elliptic Curve Cryptosystem, and the methods of implementation which makes use of Elliptic Curve. It analysis the advantages and disadvatages of the Diffie-Hellman key exchange technology , and gives a worthwhile improvement in the same time.

本文介绍了在实数域和有限域中椭圆曲线的基本定义，然后以椭圆曲线的基本定义为基础，详细论述了基于椭圆曲线密码的 Diffie-Hellman 密钥交换的基本原理及利用椭圆曲线实现密钥交换的方法，分析了Diffie-Hellman 密钥交换技术的优缺点，并给出了值得改进的地方。

Course Content:The main part of this course is about infinitesimal calculus and ordinary differential equations,including :functions and limits,derivative and differential integral and their application,differential methods of function of several variables and its application,heavy integral,curve integral,camber integral,infinite progression and differential equations.

课程内容：学科教学法与CAI研究与实践是师范计算机专业教学系统的重要组成部分，学科教学法与CAI研究与实践课程是计算机科学教育的主要内容。通过本课程的学习使学生掌握现代学科教学法与CAI研究与实践的基本概念，基本原理和基本方法；能设计并使用所学的教学理论进行中学信息技术课程的教学设计，试讲，试教。课程内容：以微积分学和常微分方程为主干，介绍函数与极限，导数与微分，中值定理。不定积分，定积分及其应用，多元函数微分法及其应用，重积分，曲线积分与曲面积分，无穷级数及微分方程等。

The basic principles and evolution process of Active Power Filter are first introduced. The scheme and structure of single-phase hybrid filter system is then illustrated and quantitative analysis is made based on the harmonic and reactive compensation principles. Through theoretical derivation, the said system has been proved to have the function of harmonic and reactive compensation.

本文首先介绍了有源电力滤波器(Active Power Filter，简称APF)的基本原理及发展历程，阐述了单相混合型滤波系统的方案和结构原理，对其进行了谐波和无功补偿原理的定量分析，通过理论推导证明了该系统具有谐波和无功补偿的功能。

Modern thought is characterized by two basic principles: fragmentation and mechanistic relations.

现代思想的特征在于两条基本原理，即分析原理和机械关系原理。

Thus, the output will always be driven by a single transistor, either P- channel or N-channel. Since they are as closely matched as possible, the output resistance of the gate will always be the same, and signal behavior is therefore more predictable. Fig. 3.4 CMOS NAND gate One of the main problems with CMOS gates is their speed. They cannot operate very quickly, because of their inherent input capacitance. B-series devices help to overcome these 24 Lesson 3 CMOS Logic Circuit 25 limitations to some extent, by providing uniform output current, and by switching output states more rapidly, even if the input signals are changing more slowly. Note that we haven't gone into all of the details of CMOS gate construction here. For example, to avoid damage caused by static electricity, different manufacturers developed a number of input protection circuits to prevent input voltages from becoming too high. [3] However, these protection circuits don't affect the logical behavior of the gates, so we won't go into the details here. New Words and Phrases 1. CMOS abbr.

略语互补金属氧化物半导体(complementary metallic oxide semiconductor)逻辑，逻辑学，逻辑性，推理方法补充的，补足的，互补的电池供电的门电路，逻辑门，闸门，控制栅，大门，通道，门口，入口伏特，环骑，闪避基础的，基本的，主要的基本原则，基本原理增强型金属氧化物半导体场效应晶体管(metallic oxide semiconductor field effect transistor)反相器，反用换流器，变极器来源，水源，消息来源，原始资料，发起者源，源极排水沟，消耗，排水漏极排出，喝干，耗尽排水，流干，耗尽相同的，相配的，匹配的匹配有效地，有力地，事实上，实际上无限的东西无穷大无穷的，无限的，无数的，极大的接地的正向偏置的，正偏的或非 25 2。

Thereby,he found a correctpath of the solution to the principal contradictions,i.e.through establishment andimplementation of the basic line of"one center and two basic points",under thepremise of adherence to the basic socialist system,we should reform fundamentallyvarious specific systems such as highly-concentrated stiff economy and politics.

在新的历史时期，邓小平总结国内外在社会主义社会主要矛盾问题上的经验教训，把马克思主义的基本原理同我国的具体实际和时代特征相结合，通过对社会基本矛盾的分析和研究，确立了人民日益增长的物质文化需要与落后的社会生产之间的矛盾是我国社会主要矛盾的思想，并由此找到了解决主要矛盾的正确途径，即通过制定和实施党的"一个中心、两个基本点"的基本路线，在坚持社会主义基本制度的前提下，从根本上改革高度集中僵化的经济、政治等各种具体体制。

After studying the contents, we hope that the graduate students can grasp the basic principles of quantum electronics, master the basic methods of semi-classical and semi-quantum theory, have the capacity for reading special treatises ,and for handling problems in scientific research.

我们希望研究生通过对该课程内容的学习，能掌握量子电子学的基本原理，在理解相应基本概念的基础上学会采用半经典半量子理论，处理光和物质相互作用的基本方法，具有阅读国内外有关文献的能力，进一步处理科研中遇到问题的能力。

At first , this paper introduces resumptively some basic knowledge : reliability screening test , high temperature burn-in principle and techniques. On the base of expatiating dynamic power burn-in principle and online function testing principle , hardware buildup , operating principle , structural feature and technical criteria of this system are also be introduced.

本文首先概括介绍了可靠性筛选试验、器件高温老炼原理和方法等基础知识，并在阐述数字电路动态功率老炼和在线功能测试基本原理的基础上，对该系统的硬件组成、工作原理、结构特征、技术指标等方面做了介绍。

Tension Control of the book's introduction, from the tension control Uncoiler principle, characteristics, classification, function and implementation are described; vector transformation from the basic principles of control, inverter control technology boards T400 model and outlines the aspects of how to control the tension the problem; In addition to the tension control roller load balancing and analysis were summarized, the principle of load balancing, sorting and implementation.

有关开卷机张力控制的介绍，从开卷机张力控制的原理、特点、分类、作用及实现进行了阐述；从矢量变换控制的基本原理、变频器的控制模式及T400工艺板方面概括了张力如何控制的问题；另外对张力辊的负荷平衡控制进行了总结和分析，有关负荷平衡的原理、分类和实现。

In this paper, the requirement analysis, design and implementation of the system are introduced in detail.

此论文详细介绍了系统的需求分析，系统设计和具体实现。

In the context of economic globalization is increasingly deepening, China's economy can not be spared.

在经济全球化日益加深的背景下，中国经济不可能做到独善其身。