查询词典 network structure

According to the connective relationship between crunode and other graphic element,a network topology algorithm for short circuit calculation is obtained,which describes the distribution network topological structure exactly and generates the data nec...

该算法不仅能够准确地描述配电网络拓扑结构，还能生成短路计算所需的数据。在实际系统运行中表明，该算法具有一定的实用价值。

The article is in analytic on the foundation of the process that this civil aviaton recombines and connotation of its backside policy, basically connect structure of epicene, hub and space to serve 3 respects such as limits to study airline recombines the influence of pair of aviation network structures from the network.

本文在解析了这次民航重组的过程及其背后政策内涵的基础上，主要从网络连通性、枢纽结构和空间服务范围等三个方面研究航空公司重组对航空网络结构的影响。

The thesis first describes the new traits of technological innovation on the basis of the analysis of innovation pattern, providing the conception and the structure of the enterprise's innovation network. Then,the thesis points out the executant, integration object,basic characteristics, link mechanism and evolvement process of the enterprise's innovation network in order to be helpful to the...

首先从创新模式的发展史中描述了企业技术创新的行为特征，以此提出了企业创新网络的概念和基本机构，并指出了企业创新网络的执行主体、集成对象、基本特征、链接机制和演变过程，以期对企业创新网络的进一步研究有所借鉴。

The structure and algorithm of Elman network are discussed and the network has been used for modeling of parameters of depth of fragmentation for fragmental furnace in ethylene plant.

讨论了Elman网络的结构和算法，并将其用于乙稀装置裂解炉裂解深度参数的建模。

Based on the degree distribution and comparison identification, the topology structure of Shenyang automobile network approaches BA(m=2) scale-free network, whose two distinct qualities are growth and preferential attachment.

3通过度分布判定和比较判定得出结论，沈阳汽车产业网络的拓扑结构最趋近于"BA(m=2)无标度网络"，这种网络拓扑模型具备的两个显著特征就是：增长性和择优性。

The empty intercrop that the feature that civil aviaton carries a network to be network node with the airport decided to airport layout changes profundity airport radiate section uses relation and dimensional structure evolution.

民航运输网络以机场为网络结点的特征决定了机场布局将深刻改变机场辐射区域的空间作用关系与空间结构演化。

At first, this paper surveys nonlinear control and the applications of neural networks in control respectively. Then it studies definitions, mathematical descriptions and conditions of invertibility for nonlinear systems, which are used to analyze the feasibility of inverse system control method. Conclusions about the feasibility of inverse control and the realizability of αth-order inverse systems in engineering are achieved. Furthermore, this paper discusses the feasibility, structure and identification of neural network αth-order inverse system for general single-input single-output continuous or discrete nonlinear systems and various composite control methods based on the αth-order inverse. At last, as a part work of an actual project, this paper focuses on the design of neural network αth-order inverse control method for thyristor controlled series compensation in power systems and its effect in improving the stability of power systems.

本文首先分别概述非线性系统的控制与人工神经网络在控制中的应用；然后研究非线性系统各种可逆性的定义、数学描述及可逆性条件，并用于分析逆系统控制方法的可行性，得出有关逆系统控制方法可行性的结论，阐明一般情况下α阶逆系统才工程可实现；接着本文针对一般单输入单输出连续、离散非线性系统，研究神经网络α阶逆系统的可行性、结构与辨识以及基于神经网络α阶逆系统的各种复合控制方法，并给出应用例子；最后本文结合实际项目，针对采用可控串补的电力系统，设计神经网络α阶逆系统控制方法，研究其对提高电力系统稳定性的作用。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

This thesis is main for the structure of the city,magistracy,vrllage and many classes of small village HFC network, and the customer assign the design of the network to take into the treatise,shallow city of and village,small village in the cabled T.V.

本论文主要就城市、辖区、乡镇和村落多级 HFC 网络的架构，以及用户分配网络的设计加以论述，浅析城市和乡镇、村落在有线电视宽带网络设计中实际应用。

A coding method of dimensions of product was proposed.A method of how to construct dimension correlative relation network was presented,and a network of dimension correlative relation based on main model and main structure of product was constructed.

提出了分层的产品模块划分方法、产品尺寸编码方法，以及模块化产品尺寸约束关系网络的构建方法，建立了基于产品主结构和主模型的产品尺寸约束关系网络。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。