网络

According to the features of potential field inversion, the mechanism of neural network are system analyzed.

根据位场反演的特点，系统研究了神经网络的运行机制，首次对比了拟BP网络与Hopfield网络在位场反演中的应用，选择了更适合于位场反演的神经网络模型一拟BP网络模型； 2。

Datang, Putian, ZTE, the firms tripod bridges will be through the network optimization of network planning in the pre-existence of the problem or the emergence of a new analysis of the situation on the tuning parameters of the network, and network planning to reinstate the deviation, and will the future network planning data provide a good reference information.

大唐、普天、中兴、鼎桥等相关厂商将通过网络优化对前期网络规划中存在的问题或出现的新情况进行分析，对网络参数进行调优，并扶正网络规划的偏差，同时将为未来网络规划提供良好的数据参考信息。

Secondly, by establishing a discrete time Markov model with spatial reuse for a MANET, we analyze the performance of the network under the AODV routing protocol. The average route length and the probability to communicate within a limited hop distance are obtained. Several performance parameters of the route discovery and route maintain process are analytically studied, such as the probability generating function and the expectation of the flooding distabce. the probability that a route is discovered by a query packet with a "hop limit", the probability that a request packet finds a valid route, the average time needed to discover a valid route and the cost to successfully route a data packet to its destination. Furthermore, we present a concrete example based on the transmitter characteristic of directional antennas and obtain the corresponding results.

建立了移动自组网络空间可重用的离散时间马氏链模型，得到了AODV路由协议下网络任意两节点间的平均路由长度、在指定"跳限"要求下通信的概率；对随选型路由协议下路由发现和路由维护过程中若干网络性能参数进行了解析分析，如网络中任意两节点问的泛洪距离的概率母函数及其期望、限定泛洪步数时成功寻路的概率、发现一条有效路由的平均时间、成功路由的代价等；并基于定向天线的发射特征给出了一个具体实例，分析计算了相应的网络性能参数。

For the purpose of killing time or alleviating depression, ritualized Internet users are usually addicted to the fantasy feelings so that they could not control the time spent on surfing. As a result, surfing occupies the free time for interpersonal contact, social participation, etc.. For ritualized Internet users, they pay more attention to the Internet itself than to the content of it, and they often browse the website impulsively and purposelessly for the purpose of temporary self-satisfaction, so these online activities neither could help to maintain the existing interpersonal relations, nor could help to establish new relationships in cyberspace.

出于打发时间的目的或排遣郁闷的目的，网络的"仪式性使用"常令使用者沉溺于网络所带来的虚幻感受而无法自主控制上网时间，结果是，上网活动本身侵占了使用者在可供自由支配时间内用于其他活动的时间，如人际交往、社会参与等(本文称之为"非大众传媒活动")；由于上网者对网络本身的迷恋远远超过对网络内容的关注，其在网上的活动往往表现为冲动而无目的浏览网页、借助网络游戏获取暂时的自我满足等，这些活动即不利于已有人际关系的维系，亦不利于在网上发展和建立新的人际关系。

Randomized orthogonal table is used to produce the specimens for radical basis function neural network.Self-organizing feature map is used to classify the specimens.

选取模具参数和工艺参数等作为影响冲压成形结果的因素，用正交表和随机法产生径向基函数神经网络的学习样本；利用自组织神经网络对样本进行分类，用有限元网格法反算的毛坯的长度作为神经网络的输出；设计了神经网络流程，定义了神经网络输出与有限元分析数据的相对误差。

In the process of calculation ,not only the decouplable feature of symmetrical elements in the coordinate system of symmetrical components is fully utilized,but also the symmetrical parts and unsymmetrical parts are treated as separate blocks, thus the efficiency of calculation is rasied moreover.

建立用于故障分析的网络的数学模型是计算机编程计算的基础。当前在电力网络中最常用的网络参数矩阵有节点参数矩阵和支路参数矩阵。在故障分析计算中一般采用网络节点参数矩阵作为电力网络的数学模型，又主要使用节点导纳矩阵作为分析的基础。

In network applications,it is important for a network to be recoverable from failure and traffic jam,and easily configurable.

在如今的网络应用中，保证网络的稳定性、实现网络故障的恢复及避免网络拥塞和网络的易管理已经变得越来越重要。

Taking the active network as a research task, the input accessibility, the Coates graph of matrix and graph transmission etc are used to analyze the relation between reducibility of the coefficient matrix of the state equation and the electric separability of the network or the electric accessibility of the network for the first time, acquiring sufficient and necessary conditions that coefficient matrix of the state equation is reducible. Network Graph Theory, Matrix Theory and System Theory over F etc are used to derive the structural controllability criterion of the passive network over F for the first time. Then according to these theoretic results, the structural controllability problems of the active network over F are studied, acquiring several structural controllability conclusions of the active network.

率先将状态方程的输入可达、矩阵的Coates图、流图传输系数等概念和方法引入到对F上有源电网络的研究，研究了网络状态方程的系数矩阵的可约性与网络电气可断性或电气可达之间的关系，研究了F上有源电网络的能控性问题，获得了状态方程的系数矩阵可约的充分必要条件、F上有源电网络系统的结构能控性判据等新的结论。

From the viewpoint of the wireless networks, the sources of network-induced delay are identified for a class of WiNCS built on the WSN. Because the routing severely affect the total round-trip time delay in this WiNCS, a novel routing algorithm that can minimize the total round-trip time delay is proposed, the detailed implementation of the algorithm is introduced.

针对基于无线传感网络实现的无线网络控制系统，从网络通讯的角度分析了网络延时的组成，在此基础上，提出了一种实现最小网络延时的路由算法，对路由算法的设计和实现进行了详细叙述。

In the computer simulation aspect, following work has been down:At first, the Wolfgang Schreiner's model is employed and extended to a new computer arteriole optimal growing model. Many new algorithms are described, such as signal tracing, resistance calculating, resistance balancing and flow balancing. With these algorithms and methods, the arteriole networks can be grown successfully on microcomputer.Secondly, a growing-network ordering method, which is called auto-centripetal ordering method of the growing networks, can be employed to order the growing networks to calculate the average parameters of the networks in level series.

在计算机模型及仿真方面：首先本文改进、推广了WolfgangSchreiner模型，提出小动脉计算机优化生长模型，以及信号灯追踪、计算网络阻力、阻力平衡和流量平衡新算法，利用这种模型和算法成功地在微机上生长出了小动脉网络；第二，本文提出生长网络自动向心分级法，对生长网络进行了自动分级，并将网络参数的分级统计结果与A。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了