查询词典 networks

Because the traditional PID exists the shortcomings of unadjustment of parameters and inferior real time nature,the Genetic BP neural networks PID control algolithm is proposed in the dissertation. The Genetic algorithm and BP neural networks are introduced to optimize three control parameters.

由于传统PID控制算法存在控制参数不可调，控制系统实时性差等缺点，本文提出遗传BP神经网络PID控制算法，用遗传算法和BP神经网络对PID控制参数进行在线优化。

He has worked at Novalux Inc., JDS Uniphase, Corning lasertron, Nortel Ortel Networks and Lucent Networks Systems.

他曾经先后在Novalux公司，JDS Uniphase公司，Corning lasertron公司， Ortel公司和朗讯公司工作过。

A major challenge of the heterogeneous wireless networks is how to jointly utilize the resources of different radio access technologies in an efficient manner. Because of the different system capacities of BS/AP and ununiformity of traffic distribution in different cells, quantities of new calls may be blocked in the overloaded cell in some hot spots; whereas its neighboring under-loaded BS/AP have superfluous bandwidth. In order to raise resource utilization of heterogeneous networks, several novel load balancing strategies are proposed, which combine the call admission control and multi-hop routing protocol of ad-hoc network.

异构无线网络的主要挑战是如何高效利用各种接入网的无线资源，针对异构无线网络基站或AP的容量差异及业务分布不均，导致通信热点地区的新呼叫因负载过重大量阻塞，而相邻轻负载小区却有容量盈余的现象，本文提出了几种联合呼叫接纳控制及ad hoc网络多跳路由算法的负载均衡策略，以提高整个异构网络的资源利用率。

The time service equipmentSFS-Ⅱ for the telemetric seismic networks is an advanced product developed for analogue telemetric seismic networks in 199 3 following the clock 768 which was invented and produced by the State Seismolog ical Bureau of China in 1970s.

SFS-Ⅱ遥测地震台网时间服务设备是继国家地震局于70年代投资研制的&768&钟站后，为模拟遥测地震台网研制并投入小批量生产的换代产品。

This method monitors the network through reading and analyzing networks connection information in the Management Information Base contradistinguishing the networks invasion and attack characteristic.

此方案主要是通过读取和分析管理信息库中的网络连接信息，针对网络入侵和攻击的特点，来对网络进行监测。

Tocopherol has very high physiological activity. Soybean deodorized sludge contains plentiful natural tocopherol. For extracting tocopherol from soybean deodorized sludge, solubility of α tocopherol in supercritical CO 2 is measured. The solubility data are correlated by RBF neural networks model and chrastil model. Relative error of chrastil model is 25.36%. By means of learning and training on RBF neural networks model, the average error of training set is 0.23% and that of testing set is 6.48%....

生育酚有很高的生理活性，油脂生产中得到的脱臭馏出物含有丰富的天然生育酚作为萃取生育酚的基础，对甲酯化油脂脱臭馏出物中α-生育酚在超临界CO2 中的溶解度进行了测试，并用Chrastil分子缔合模型和RBF神经网络模型对溶解度数据进行了拟合 Chrastil分子缔合模型的相对误差为 2 5.36%对于RBF神经网络模型，经过网络学习和训练，训练集平均误差仅为 0 。2 3%，测试集误差为 6.4 8%，效果比较理想

The paper analyses optimal switching devices in the distribution networks, sets up a model to decide to judge types and numbers of switchs in proper location of distribution networks and applies to partical swarm optimization to compute. The simulation system is constituted with matlab. The paper discusses and analyses theory of fault location ,excogitates a synthesis matrix algorithm and an algorithm based on GPRS for fault location and isolation.

本文对配电网开关优化配置进行了分析并建立了数学模型，应用粒子群优化算法来确定配电网馈线相应位置的开关种类和数量并进行了matlab仿真；对故障定位的原理进行了详细的讨论和分析，研究出了故障定位的综合矩阵法和一种基于通用分组无线业务的配电网故障定位与隔离的方法。

IEEE802.15.4 is a new standard uniquely designed for low rate wireless personal area networks.It targets low data rate,low power consumption and low cost wireless networking.The energy-efficiency and robustness of this new standard makes it a strong candidate to be a federating communication protocol for wireless sensor networks.

IEEE802.15.4作为一种专为低速率无线个人区域网络(low data rate-wireless personal areanetwork，LR-WPAN)而设计的低成本、低功耗的短距离无线通信新标准，为无线传感器网络提供了一种很好的解决方案。

With the concept of complete state point space, a new method of neural networks ensemble is proposed. By guarantying the accuracy and generalization ability of neural networks ensemble identification, the method combines both the type and parameters of the systems and lowers the commands to information quantity of the object.

在系统参数辨识方面，本文基于完备状态点的概念提出了一种新的神经网络集成方法，该方法将系统的类型与参数辨识融为一体，在保证了神经网络集成辨识的精度和泛化能力的基础上，降低了对待识别系统需知测试信息的要求。

Advancement in research on composites with interpenetrating networks ;2. In this paper,research status at home and abroad on manufacturing techniques of composites with interpenetrating networks and their preforms were summarized,with focus on the special feature of every one.

网络互穿结构复合材料的基体与增强相在整个材料中形成各自的三维连续网络并且互相缠绕，该结构可充分发挥各组成相各自的优势，以获得最佳的综合性能，它已成为最新的研究热点。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。