Design and Implementation of Logistics Management System for Cotton Processing

物流作为一个新兴产业，在我国的社会经济发展中，起着越来越大的作用。物流管理系统是一种综合且复杂的物流信息管理系统，涵盖了多种不同的作业方式，是现代信息管理技术在物流作业、物流规划、物流管理等方面的具体体现。本文以棉花产品原料的生产、加工直到消费过程中的运输、储存、装卸、搬运、包装、配送、信息处理等基本功能，应用现代物流理论中仓储、销售、配送和运输的相关理论，主要论述的是依据棉花加工仓储、销售及运输的特点而开发的仓储和销售物流管理系统。 本文首先提出了棉花加工物流管理系统的开发目标，使用面向对象的思想，针对棉花制品复杂的物流业务流程进行详细充分的讨论，形成各类系统用例。然后提出了开发架构和数据...In the economic development of oursociety,logistics which is a new industryplays a more and more important role.Logistics management system which covers a wide range of operations is one kind of the synthetical and complex logistics information management techniques in the logisticsoperations, logistics planning logistics management and other aspects.This dissertation mainly discussed the Cotton p...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201023043

政府在构建和谐社会中应该做什么

构建社会主义和谐社会是我们党从全面建设小康社会、开创中国特色社会主义事业新局面的全局出发提出的一项战略任务。承担起调整经济增长和社会发展关系,构建与市场经济相配套的利益均衡机制,促进社会公平等方面的公共责任,是现代政府的职能使命。坚持以科学发展观为指导,以政府社会管理的强化为先导,提高政府社会治理能力,推进社会管理的民主化、科学化和法治化。通过对西方发达国家政府社会管理实践的简要考察,可以从中得到有助于我国构建和谐社会的若干启示

On some goodness-of-fit tests for copulas

Copulas have been known in the statistical literature for many years, and have become useful tools in modeling dependence structure of multivariate random variables, overcoming some of the drawbacks of the commonly-used correlation measures. Goodness-of-fit tests for copulas play a very important role in evaluating the suitability of a potential input copula model. In recent years, many approaches have been proposed for constructing goodness-of-fit tests for copula families. Among them, the so-called “blanket tests" do not require an arbitrary data categorization or any strategic choice of weight function, smoothing parameter, kernel, and so on. As preliminaries, some background and related results of copulas are firstly presented. Three goodness-of-fit test statistics belonging to the blanket test classification are then introduced. Since the asymptotic distributions of the test statistics are very complicated, parametric bootstrap procedures are employed to approximate critical values of the test statistics under the null hypotheses. To assess the performance of the three test statistics in the low dependence cases, simulation studies are carried out for three bivariate copula families, namely the Gumbel-Hougaard copula family, the Ali-Mikhail-Haq copula family, and the Farlie-Gumbel-Morgenstern copula family. Specifically the effect of low dependence on the empirical sizes and powers of the three blanket tests under various combinations of null and alternative copula families are examined. Furthermore, to check the performance of the three tests for higher dimensional copulas, the simulation studies are extended to some three-dimensional copulas. Finally the three goodness-of-fit tests are applied to two real data sets.published_or_final_versionStatistics and Actuarial ScienceMasterMaster of Philosoph

稀疏波长变换网络性能分析与研究

文章对动态业务模型下的稀疏波长变换网络性能进行了分析与研究,对波分复用（WDM）网络中引入波长变换器后的网络性能进行了系统的仿真,分析了波长变换器数量、波长变换器位置、波长变换范围以及路由波长算法等因素对网络性能的影响

WDM多粒度网络中的波带通道分配算法

文章提出了一种波分复用（WDM）多粒度网络中的静态波带通道分配算法———平衡路由双向首次命中算法（BBFF,Bal-anced-routing-B id irectional-F irst-fit）。该算法旨在减少全网多粒度全光域光交叉连接器（MG-PXC）的端口数,降低网络成本和控制复杂度。算法在路由选择阶段尽量保证全网负载平衡;在波长分配阶段采用改进了的首次命中（FF）算法,减少了因配置零散波长通道而无法建立波带通道的可能。仿真结果表明,BBFF算法的两个特征,都有效地减少了MG-PXC的端口数,降低了网络成本