网络技术

The important task of the exquisite physical chemistry course construction is to make good of the hardware of modern education technology,to develop the potential of the existing and high-quality teaching resources,to increase the network information,to abide by the principles of intellectualized navigation,scientificity,complementarity,interaction,flexibility,feasibility,scalability,artistic quality,instructiveness,stability and step by step,etc,integrate and make the network teaching materials normative overall and beneficial to the students.

精品课程建设要求逐步建立能使广大学生受益的网络教学资源，只有这样才能挖掘出现有教学资源的潜力和最大化地利用现有优质教学资源。为此，我们充分利用现代教育技术的良好硬件环境，在原有工作的基础上，增加更多的网络信息，全面整合和规范物理化学课程的网络教学资源，并以此作为精简授课学时、激发学生学习兴趣和学习动机、提高教学效果的一个重要途径。1网络教学在物理化学教学中的作用网络的时空无限性不仅构筑了新的人类生存空间，也构筑了新的教育空间。

A grain-state detecting system based on wireless sensor network relates to the application of wireless network, and several sensor nodes are berried in the granary to form the cubic monitor network; coordinating node is mounted in every granary, located in outer of granary; at least one relay network consisting of relay nodes is designed according to the granary, and the position of relay nodes are fixed; information sink node and terminal sever are configured separately, located in control room; the coordinating nodes gather the information collected by several sensor nodes, and send it to the terminal sever by the relay network and information node consisting of relay nodes, the software in terminal sever processes the information, and sends commands to coordinating node to realize the network management for granary.

一种基于无线传感器网络的粮情测控系统，涉及无线网络应用技术，其多数个传感节点有规律的埋入粮仓的粮食中，构成立体监测网络；协调节点每个粮仓设置一个，位于粮仓外部；至少由一个中继节点组成的中继网络是根据粮库的具体情况设计的，每个中继节点的位置固定；信宿节点和终端服务器一对一配置，位于控制室；协调节点汇聚本粮仓多数个传感节点采集的信息，通过中继节点组成的中继网络和信宿节点发送至终端服务器，由终端服务器预装的软件根据信息进行实时处理，发布指令给协调节点，实现粮储工作的网络化管理。

The IDS of the paper is network-based anomaly detection system.with the help of Data Mining technology, we bring forward a measure to describe the normal state of the network traffic and user behavior and extracting the useful rule from large network data.so we can establish the knowledge warehouse which describe the normal state of the network traffic and user behavior. The knowledge warehouse can be the standard in order to judge the normal state.we can find the dubitable connections according to account the state and anomly instances of connections.

论文在描述网络应用和用户行为时采用数据挖掘技术从海量的网络数据中提取有用的规则，构建了一个描述正常状态下的网络应用和用户行为的规则集，这个规则集是用来判断网络应用和用户行为是否正常的标准，论文根据这个标准分析当前网络连接的异常情况，将可疑的连接找出来。

To assist the signature specialists, the authentication system for off-line Chinese signatures was developed based on a new Integrated Neural Network, which was composed of the modules, namely Feature Distributed Network, Neutral Networks Classifier and Decision Fusional Network.

离线手写签名鉴别是一种基于生物特征的身份识别技术，利用集成神经网络对手写签名进行自动鉴别。该集成神经网络由特征分配网络、神经网络认证主体和决策融合识别网络三部分构成。

To assist the signature specialists, the authentication system for offline Chinese signatures was developed based on a new Integrated Neural Network, which was composed of the modules, namely Feature Distributed Network, Neutral Networks Classifier and Decision Fusional Network.

离线手写签名鉴别是一种基于生物特征的身份识别技术，利用集成神经网络对手写签名进行自动鉴别。该集成神经网络由特征分配网络、神经网络认证主体和决策融合识别网络三部分构成。

In this paper, the generator model of constant transient voltage and the invariableness impedance model was used, and the saliency of generator is included; through the analysis of the characteristic of the network equation calculation in the transient stability analysis, a new node ordering algorithm is proposed. Better initial value can accelerate the convergence rate of the networking equations, reduce the number of iterations, thus to cut down the amount of calculating time.

本文首先建立了适合于暂态稳定分析的简单模型，其中发电机采用E_q恒定模型，考虑了发电机的暂态凸极效应，负荷采用恒定阻抗模型；研究了电力系统的暂态稳定分析方法，指出目前数值积分暂态稳定计算方法中存在的不足，主要是网络方程的求解速度过慢；分析了暂态稳定计算中网络方程的特点，将稀疏技术应用于网络方程的求解，提出了一种新的节点编号方法——最小度最小有源节点道路集算法，减少了网络方程的计算量；在进行交替迭代求解时，将预测算法应用于每一积分步网络方程功角和电压的初值估计当中，应用自回归算法和广义延拓算法，期望给出一个更有效的电压和功角初值方案，来加快方程的收敛过程，减少方程迭代的次数，以提高计算速度。

Firstly, this thesis introduces background, concept and characteristics of MANET, and points out security issues and challenge through a security requirement analysis for MANET. Secondly introduces the basic concept, classified methods and the composing of the IDS.Basing on the research of the lineate networks, this thesis proposes a hiberarchy model based zone, and presents a new

在针对有线网络入侵检测技术研究基础上提出了适用于无线Ad Hoc网络的基于域多层入侵检测模型，并在该模型基础上实施一种新的混合入侵检测算法；通过NS-2网络模拟仿真器模拟测试了该算法的可行性与有效性，构建了移动Ad Hoc网络与有线网络的互连模型，并提出了适用于该互连模型中的入侵检测实施方案。

This intormation is combined in the structure of a Bayesian Graph so as to identify unknown or unpredictable faults. The final experiment results show the intelligent agent can detect network abnormal behavior before a fault actually occurs. Event correlation algorithm for network fault real-time isolation and handle uses object-oriented model method for critical network device and a novel coding scheme, even if in the case of lost alarm and wrong one, it also can identify the fault origin and automatically adapts to changes to network topology to ensure seemless scalability to large and complex network environment. Its performance greatly presides over traditional rule-based event management system.

对学习获得的信息经由贝叶斯图加以组合，从而签别未知的或不可预见的故障，实验结果表明智能监测代理系统能够在故障发生以前检测网络异常行为；用于网络故障问题实时隔离和处理的事件关联算法使用面向对象的针对的网络关键设备的建模方法和新型编码技术，即使在丢失报警和错误报警的情况下，亦能精确地标识故障源，并能自动适应网络拓扑的改变，从而保证无缝地伸缩到专用大型和复杂网络环境中，其性能大大优于传统的基于规则识别的事件关联系统。

A recent report by the Internet Safety Technical Task Force says that child exploitation on the Net and elsewhere is worrisome but online social networks, such as Facebook and MySpace, are not to blame for the bulk of it since most reported cases predated their existence.

最近，由网络安全技术任务部门发布的一份报告称孩子对网络和其他方面的利用令人担忧，但是诸如Facebook和Myspace这样的社交网络并不应该为孩子对社交网络的大量利用而受到责备，因为大部分的这类报告在Facebook和Myspace这样的社交网络出现之前就有了。

On the one hand, the paper theoretically develops the relations between online public opinion and public decision-making as well as its background connotation of rights and powers and their complicated linkages, based on which the"should-be"state of the relations between the foregoing two is proposed, on the other, it also analyzes, in the light of the states quo, the"is-being"state of the contradictions between the two sides.

一是从理论上梳理网络民意和公共决策的关系，****其背后的权利和权力意蕴和复杂纠葛，提出网络民意和公共决策关系的&应然&状态；二是从现实出发，对两者间的矛盾的&实然&情形进行分析，具体考察了网民结构、网络自由离散特征、网络情绪化表达等问题同公共决策民主、科学、理性要求的冲突，以及公共决策中对待网络民意的消极态度、&自利&倾向和技术方法上的被动和偏差等问题同网络民意的正当性、利益性、自主性要求之间的矛盾，并提出对各问题的反向思考和意见。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。