混合渠道新品上市最优订货策略

针对目前越来越多的企业引入电子商务,造成传统销售渠道与网络直销渠道相互竞争、相互促进的复杂需求状况,研究了具有一次补货机会的新品上市最优订货策略.在模型建立阶段,基于新品上市的数据特点及混合渠道特征,提出需求预测更新策略;基于网络渠道的服务特点,提出随时间动态变化的订单取消率及退货率;采用动态的补货及配送提前期,并提出加急配送策略;讨论补货提前期的库存状态,建立最优订货策略模型.在模型求解阶段,提出基于利润的动态逼近算法及交叉遍历算法,并对模型最优解的寻优步骤进行分析.最后采用实际案例证明了该模型及算法的优越性,并对部分参数进行了敏感性分析以辅助企业优化决策.     

基于差异演化算法的供应链网络优化

由于网络优化问题属于NP难问题,采用了差异演化方法求解包括正向物流和逆向物流多品种,两层,有容量限制的混合整数非线性物流网络数学模型。根据模型的特点,改进了经典差异演化算法,使之能更好的应用于有离散变量的情况。算例表明,该算法有效可行,为物流网络设计提供可参考的模型和求解算法。     

基于差分演化算法的马斯京根模型参数率定方法

差分演化算法(Differential Evolotion,简称DE)是一种基于群体与个体间差异的高效进化算法,具有收敛快、控制参数少、程序实现简单等优点.文章将差分演化算法应用于马斯京根模型参数估计,实例仿真结果表明,该方法精度高、收敛速度快,对求解实际水立模型参数优选问题非常有效.     

基于遗传算法的城市生活垃圾中转站选址问题研究

主要针对和城市居民生活息息相关的垃圾处理问题展开研究,从城市垃圾处理集运系统的特点出发,构建了多目标情况下的基于逆向物流网络的中转站选址模型,并采用基于遗传算法的多目标进化算法对模型进行求解,最后通过实际算例对模型及算法进行求证,为城市垃圾处理集运决策提供理论支持。     

紧凑城市--重庆都市区空间结构模式研究

重庆都市区同时体现着集中和分散相统一的空间发展过程.通过对我国城市空间结构类型和城市空间结构演化规律的分析,以及对重庆、香港、上海等城市空间结构形态演化的比较研究,提出了重庆都市区一心两圈的宏观结构和多组团、分片集中紧凑的城市空间规划发展模式构想.     

自媒体时代高校网络舆情动态演化规律及研判机制研究

自媒体以其便携性、匿名性等特点吸引了越来越多的大学生用户,为高校网络舆情演变为舆论甚至引发"群体性"事件提供了便利的条件。本文在综合考虑自媒体时代舆情传播特征及高校网络舆情特点基础上,分析高校网络舆情生成发酵规律和特点,研究舆情特征和动态演化规律,总结出舆情"四色"预警演化路径。依据对动态演化规律研究,借助统计学、系统工程学等学科研究视域提出对当前高校网络舆情包括筛选机制、分级机制、预警机制和引导机制的研判机制体系。     

面向关键核心技术突破的区域创新网络协同驱动研究——以长三角IC产业链为例

构建长三角城市群集成电路产业链协同创新网络，探究网络驱动机制对促进成果转化，提高关键核心技术原始创新能力具有重要意义。研究以长三角城市群集成电路产业链合作专利数据为基础，基于社会网络分析(SNA)方法构建集成电路产业链协同创新网络，采用指数随机图模型(ERGM)探究网络演化驱动机制。结果表明：网络由“单核心”向“多核心”网络结构转变，网络“小世界性”显著，层级性清晰；开放型三角结构对网络演化呈倒“U”型曲线关系；研发主体的中心性、结构洞属性对网络演化具有显著的促进作用；技术距离对网络演化有差异化影响，其中技术多样性与重叠性对网络的影响呈“U”型曲线关系，技术宽度始终呈正向显著，而技术深度则对网络演化无显著的促进作用；网络演化具有显著的组织邻近性特征。     

上海庙～山东±800kV特高压直流输电工程实施阶段水土保持措施

本文分析了上海庙～山东±800kV特高压直流输电工程水土流失的特点,结合工程区域地形地貌及气候特点,提出输电线路工程中防治水土流失的一些措施,为上海庙～山东±800kV特高压直流输电工程建设水土保持工作的进行提供科学依据.     

输电线路工程的安全危险辨识及管理方法探讨

输电线路工程作为电力系统工程建设的一部分,实际施工中由于受到多重因素的影响,该工程建设具有高危性、流动性、关联性等特点,其中存在多重安全危险,科学辨识安全危险并加强安全管理,才能提高输电线路工程施工效率。文章首先分析了输电线路工程特点,然后分析了安全危险辨识的步骤与方法,最后探究了安全管理策略。     

供应链视角下的城市输电供应网络应急管理研究

文章将电力供应网络与供应链网络相结合,借助供应链突发事件应急管理的思想,从供应链的视角分析了城市输电供应网络,提出输电供应网络应急管理的基本构架,利用复杂网络、应急选址和系统优化方法,针对由于外界破坏可能造成的城市输电供应网络电力供应中断问题,提出相应事前预警和事后快速恢复的应对策略。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

Ansätze und Ergebnisse anglo-amerikanischer M&A-Forschung

Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.     

Introduction of New Technology with a Sound Transition of the Input-Output Structure

We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。