查询词典 network analysis

The paper studies fault diagnosis technology based on fruticose gas pipe network which is universal in small towns,and gives a particular description of domestic and foreign gas pipe network fault diagnosis technique based on hardware and software currently. The author uses graph theory to build up hydraulic analysis model of natural gas network and presents its solution methods. Besides, the author works out the relation between gas pipe pressure and flux in unsteady condition of fluid flow according to pressure boundary condition and differential equation group, and puts forward fault diagnosis methods and steps of the fruticose natural gas pipe network of middle pressure based on the simplification of this relation.

本文针对小城镇比较普遍的枝状天然气分配管网进行故障诊断技术研究，详细叙述了目前国内外基于硬件和软件的燃气管网故障诊断技术，利用图论理论建立了天然气管网水力分析模型并叙述了其求解方法，根据燃气管内流动的微分方程组和压力边界条件求解出非稳定流动时燃气管道压力和流量的关系，并在对此关系进行简化的基础上提出了基于中压枝状天然气管网的故障诊断方法和步骤。

In this Paper analysis several different complexity of the river network, found that the more complex the river network, laid on the location of the observation points higher demand,and theannular network high sensitivity than the treelike network in the Observation points layout.

论文中分析了几个不同复杂情况的河网，发现对于越复杂的河网，对观测点的布设位置要求越高，环状河网的对监测点空间布置的敏感性比树状河网高。

In this paper, a set of unified calculating models for general network planning, spliced network planning and streamlined network planning based on analysis of the spliced network planning.

基于对搭接网络计划的分析，给出一组一般网络计划、搭接网络计划和流水网络计划的通用时间参数计算模型。

The method firstly determined the pinch point and the minimum utility targets of the batch processes by the water cascade analysis technology, then synthesized the water network by using the diagram and rules, and then determined the number and volume of storage tanks for batch processes with storage tanks,and lastly described the synthesized optimum water network by the time-water network diagram.The influence of the water network by the flowrate demand of a water-using process was also discussed.

它首先通过水级联分析技术确定间歇过程用水网络的夹点及最小公用工程，然后利用时间-纯度图和设计规则来合成用水网络，对有储罐的情况，确定了储罐的数量与容量，最后利用时间-水网络图描述了所合成的最优间歇过程用水网络，并探讨了用水过程流量对网络的影响。

So, need a set of feasible network security tactics urgently and carry on network analysis to IPs network of telecommunications of Kweichow, Make out the system of network security and implement.

因此，迫切需要一套切实可行网络安全策略，对贵州电信IP网进行系统分析，制定出网络安全体系并加以实施。

The Center is open to the whole society to provide various kinds of relevant services in comprehensively quantitative analysis and evaluation of various disciplines or industries through many methods, such as synthetic analysis integrating qualitative analysis and quantitative one, informetrics analysis (including bibliometrics analysis and scientometrics one): to accept items commissioned by enterprises, government organs and individuals to evaluate scientific research work, demonstrate project and provide consultation for their management, decision-making and social members; to provide support and service for network literature resource management and exploring, informationization construction, talent fostering and specialty setting in higher educational institutions in the country; to provide scientific research evaluation, the report of listing the order of main universities in a competition and consultation service for nationwide academic circle, scientific and educational circles, enterprise circle and relevant government administration departments; to provide information retrieval and evaluation service on thesis publishing and its being quoted for different kinds of institutions or individuals.

本中心面向全社会开展开放式的全方位服务。

Detailed analysis of the customer management system, CRM, as well as the three components of data mining in CRM technology in the realization of algorithms, including association analysis, sequential pattern analysis, classification analysis, cluster analysis and other commonly used methods, as well as in efficient use of customer management software for id3 decision tree method, genetic algorithm, neural network.

详细分析了在客户管理系统中，CRM的三个组成部分以及在数据挖掘技术在CRM中的实现算法，主要包括关联分析、序列模式分析、分类分析、聚类分析等常用方法，以及能在客户管理软件高效使用的id3决策树法、遗传算法、神经网络方法。

To help improve Henan Netcom Company's ability of competition, we also make the environmental analysis, the strategy analysis and the competitive analysis; distinct it's external internal strength as well as weakness opportunity, threat. We assure that the core competition abilities include advanced telecommunication network, large numbers of subscribers and various services. Then this text analysis the competitors, the potential competitors, substitutions, equipment providers and customers by using Porter theory, compare each competitor's ability and the field that they compete drastically. Through conforming the costumer's utilitarian and personal services requirement, it discover that the key factor of development is holding the group subscribers. By Boston Matrix we find out key services, staring services, problem services, then study which service is the most important for us and which one should be throw off. Base on analysis above, this article concludes the general strategy and the service strategy of Henan Netcom: enforce the stable development strategy for certain period, and perform expansion strategy when time is fit.

在对河南省通信公司的发展战略的分析中，以战略管理理论战略分析为基础，进行了河南省通信公司的内部的优势和劣势以及外部机遇和威胁分析，确定了河南网通公司的优势是先进的通信网络、庞大的客户资源和丰富的业务；运用波特五种竞争力分析方法，通过竞争对手分析、潜在竞争对手分析、替代品分析、供应商分析、用户分析，探讨了几个竞争者实力对比和相互竞争激烈的领域；明确了用户需求是在方便和实用的同时，追求个性化服务，得出了今后竞争的重点是保住关键的大客户；运用波士顿矩阵分析法，找出了河南省通信公司的金牛业务、明星业务和问题业务，研究了公司各种业务产品的发展重点和取舍战略。

Based on investigating the short and intermittent structural plane, surrounding rockmass of the huge underground powerhouse in Three Gorge has been divided into five statistical similar areas according to its characteristic of rockmass structure by applying structure plane network simulation. Distributed characteristic of structural plane has been studied and based on it mechanics macrocharacteristic has been studied:(1) It is the first time that based on the result of structural plane network simulation rockmass quality of every structure area has been studied with applying blurred information optimum seeking technique and be compared with and RQD method. The result indicated that it has better effect to evaluate rock quality with blurred information optimum seeking technique.(2) It is the first time that the interrelated relationship of the result of in-suit rockmass deformation test and fractal characteristic of structure on test point has been applied to determine rockmass deformation parameter. The question of evaluating deformation parameters of engineering rockmass has been solved.(3) Anisotropy strength parameters have been determined by applying shear zones simulating method. The result indicated that there are different strength parameters in every structural area, after comparing the result of Fast Lagranian Analysis in continua number simulation method with that of method of weighted mean according to continuity. The result indicated that when a suitable reduction coefficient is been considered rockmass strength parameters can be simply and fast determined with method of weighted mean according to continuity where there is not enough test result.(4) Damage characteristic has been studied based on analysis fractal characteristic of structural plane network by applying fractal-damage coupling method. It is the first time that the concept of damage degree has been set up to evaluate rockmass quality according to the biggest principal damage.

通过对短小、断续性结构面统计特征的研究，将地下厂房区划分为五个岩体结构统计均质区，应用结构面网络模拟技术研究了各个岩体结构均质区结构面的发育分布特征，并以此为基础对岩体宏观力学特性进行了深入研究：(1)首次通过在结构面网络模拟计算结果的基础上，应用模糊信息优化技术研究了厂房区各个岩体结构分区的岩体质量并与岩体基本质量指标研究法、岩体质量指标RQD值研究法作了对比，结果表明以结构面网络模拟结果为基础，应用模糊信息优化技术进行岩体质量评价能够取得很好的效果，解决了工程岩体质量的定量评价问题；(2)首次通过对已有的现场大型岩体变形试验结果的分析及相应试验点岩体结构分形特征的研究，建立了结构面分布的分形维数和岩体变形指标间的相关关系，并首次应用这种相关关系根据结构面网络模拟及分形维数计算结果确定了缺少试验结果的地下厂房各工程部位的岩体变形指标而且应用于围岩稳定性计算，解决了工程岩体宏观变形参数的评价问题；(3)应用在结构面模拟网络图上模拟岩体剪切破坏带的方法，得出了岩体在不同方向上的强度参数，结果表明岩体的强度特性与结构面的发育方向和程度有着明显的关系，各个岩体结构均质区具有不同的强度参数；同时还通过应用拉格朗日差分法对岩体强度指标的数值分析并与按连通率加权平均计算法对比表明，按连通率加权平均计算法在考虑合理的折减系数情况下，可以简单快速地对缺少现场大型试验结果的具体工程部位实现岩体强度指标的估计，通过以上研究解决了工程岩体抗剪强度参数的评价问题；(4)通过结构面网络分形维数的研究，应用分形损伤耦合分析方法，研究了厂房区岩体的损伤特征，并首次引入"损伤度"的概念，建立了应用最大主损伤评价岩体质量的指标体系。

The paper firstly sums up the relative theory and development trend of Decision Support system, mainly including the decision-making supporting function, the features, the structure and the major mission of DSS. Subsequently, the paper lays emphasis on the research of the electricity requirement, energy-exhausting analysis and network optimum programming method for the second oil-mining factory of Da-Qing oil field, and then provides the principle of the network programming and the framework for designing DSS according to the requirement of optimizing the layout of network, saving energy and timely supervising. Following the former analysis and design, the paper finally conducts the development and debugging of the Decision Supporting System based on the software engineering theory.

本文首先对决策支持系统的相关理论及其发展趋势进行了综述，重点介绍了决策支持系统的决策支持功能、决策支持系统的基本特征、决策支持系统的主要任务和决策支持系统的结构等；然后，对大庆采油二厂地面生产系统电力需求、能耗分析、电网框架规划优化方法进行了研究，针对优化网络布局、节省损耗以及实时监控的要求，提出了网络规划的原则、系统设计的基本思想，进而进行了系统总体结构、系统的模型库以及数据库的设计；最后，按照软件工程学的方法，在系统分析和设计的基础上，完成了整个系统的开发和调试工作。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。