基于仿真方法的新型装备备件消耗预测研究

针对新型装备备件消耗历史数据较少，提出用仿真方法预测新型装备备件消耗。在分析影响装备备件消耗因素的基础上，做出一系列假设，用系统仿真的方法模拟装备的使用、故障和维修，以此预测备件的消耗。实例验证了用系统仿真方法预测新型装备备件消耗，其预测精度要高于传统预测方法。     

基于仿真的备件消耗预测方法研究

针对目前装备备件消耗预测遇到的问题,文章提出基于仿真的备件消耗预测方法。首先分析了装备维修保障系统的结构和运行规律,在此基础上建立了面向仿真的装备维修保障模型,包括装备使用任务模型、装备系统模型、维修保障系统模型、使用与维修保障活动模型。借助SIMLOX仿真平台,结合案例想定对上述模型进行了仿真实现,得到备件消耗的品种和数量。     

备件需求预测技术综述

通过对国内外关于备件需求预测的文献进行研究,总结了当前备件需求的预测方法,揭示了备件需求预测技术的发展趋势。     

基于主成分分析-RBF神经网络模型的备件预测研究

备件预测在产品物流保障中占有极其重要的地位,针对现有各种航空备件预测方法精度较低,无法满足实际需求的现状,文章提出了基于主成分分析-RBF神经网络模型的备件预测方法：首先利用主成分分析方法去除原始输入层数据的相关性,以解决RBF神经网络模拟预测备件需求时输入变量过多,网络规模过大导致效率下降的问题．最后选择合适的径向基函数密度训练神经网络。通过结合实例进行分析,取得了较好的效果。     

小子样地铁备件需求量的贝叶斯预测模型改进研究

地铁备品备件的需求量预测有利于备件储备决策质量的提高,但是大量少样本备件的需求量预测不能采用常规的统计方法,经典贝叶斯预测模型有效利用先验信息进行预测,但是需要较多的数据,操作复杂,结果误差值较大。文章基于样本数据,通过实验的方式调整贝叶斯预测模型参数的计算方法,降低了数据要求,简化了贝叶斯模型操作的复杂程度,也提高了预测的精确度,在一定程度上提高了地铁备件管理的效率。     

备件需求预测方法研究现状综述

目前,备件需求预测的方法很多。文章系统归纳总结了有关国内外比较科学的备件品种和数量需求预测的方法,并对如何结合实际工作应用合理的预测方法进行了分析。文章的研究成果能够为备件需求预测提供参考。     

基于蚁群算法的改进神经网络备件库存分类模型研究

针对基于BP神经网络的备件库存预测模型的不足,提出基于蚁群算法的改进神经网络算法应用于备件预测模型。首先建立了基于蚁群算法的改进神经网络备件库存分类模型：其次进行了实验分析及对比。验证了模型的可行性。对装备备件预测具有一定的参考价值。     

军用飞机备件预测仿真研究

军用飞机备件需求预测是部队目前研究的一个热点问题。为了有效地进行军用飞机备件需求预测,提出了一种用仿真进行预测的方法。通过仿真结果可以看出,该方法用于军用飞机备件需求预测是非常方便有效的。     

基于信息融合技术的备件库存控制决策模型研究

备件在保证企业正常生产发挥着巨大作用。本文通过对备件库存决策信息的特征进行分析的基础上,构建了基于多源信息融合技术的备件库存控制决策模型,并对采用何种信息融合方法与策略进行备件库存决策分析做了一定的研究。     

结合预分类的备件需求预测与订货批量计算

备件需求预测是企业订货管理的关键,为了使预测更加合理,提出了一种结合预分类技术的多元线性回归方法对备件需求进行预测,文中所指的预分类,就是利用备件的同源性和继承性,将工作原理相近,结构相似,工作环境相同,需求基本一致的备件分为一类,在预分类的基础上采用多元线性回归方法进行预测,然后依据预测结果计算备件的经济订货批量.     

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.     

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。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.