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1.
文章针对内部威胁的特点,提出了一种层次化内部威胁态势评估模型及其相应计算方法。该方法在威胁频率及威胁严重性的统计分析基础之上,利用模块和主机自身的重要性因子进行加权,计算内部网络系统内模块、主机以及整个网络系统的威胁指数,进而评估分析内部威胁态势。  相似文献   

2.
《价值工程》2019,(21):273-276
为了科学评估确定新型坦克发动机的使用寿命,并充分发挥其应有效能,避免维修不足或维修过剩造成的经济损失,本文以某新型坦克发动机为研究对象,在研究影响发动机使用寿命的因素及其已有数据的基础上,建立发动机使用寿命计算模型并求解该型发动机使用寿命,探讨延长发动机使用寿命的可能性,对充分发挥发动机的固有可靠性,提高经济效益具有现实意义。  相似文献   

3.
韩斌  苏奎峰 《价值工程》2015,(6):306-307
为解决信息化装甲分队目标威胁评估问题,依据径向基函数(RBF)神经网络的快速性和唯一最佳逼近性设计了改进型RBF神经网络。实例分析表明,该改进方法可满足不同作战样式下目标威胁评估要求,具有较高的实用价值。  相似文献   

4.
张衡  花兴来  陈鹏 《物流科技》2008,31(7):124-127
从影响供应链战略目标的三个关键因素入手,结合装备供应链特点,建立了装备供应链绩效评估指标体系;依据神经网络原理,建立了用于装备供应链绩效评估的LMBP神经网络评估模型;并通过实例分析和仿真,结果表明,该评估模型合理、有效、可行。  相似文献   

5.
对企业价值进行评估有许多评估模型,一般可将价值评估方法分为:现金流贴现模型,即依据预期未来现金流量现值评估一项资产或公司的价值;相对估价模型,即寻找确定可比较资产,根据某个共同变量,如收入、现金流量、账面价值或者销售收入,通过可比资产的价值估计标的资产的价值;期权估价模型,即对具有期权特性的资产进行价值评估;剩余收益估值模型;经济增加值模型(EVA模型)。具体而言:  相似文献   

6.
《价值工程》2017,(17):161-164
效能评估在军事上有着广泛的应用。军事武器装备的效能评估,是对装备单项、系统及作战效能的定性或定量表达,是对其各种效能的权威评估。层次灰色评估模型凭借专家意见的支持,以定性分析为基础,将定量的计算和处理引入评估方法,使之成为一种有效的综合评级方式,能够得到科学的目标权重,实现对目标的有效评估。本文以装甲坦克效能评价指标体系为例,运用层次灰色理论对其进行合理评估,为装备的效能评估研究提供有力的理论支撑。  相似文献   

7.
苏琛  张珂 《物流技术》2007,26(5):119-122
介绍了对军队后方仓库进行效能评估的意义,运用层次分析法建立了评估指标体系;依据“ADC”评估模型,分析了各个效能子系统的评估方法,同时给出了基本指标的计算方法。  相似文献   

8.
刘伟达  毕世英 《价值工程》2019,38(5):175-178
为了更准确地了解机电产品的可靠性现状,找出机电产品的薄弱环节,提出一种基于运动单元的全状态建模及评估方法。依据马尔科夫过程"无后效性"的特点,将各状态转移联系在一起,建立了机电产品协同的全状态模型;采用解析法对模型进行求解,得到机电产品处于各平稳状态的概率,并进行可靠性指标评估;最后借助托盘交换架对模型进行了分析,验证了该方法的有效性。  相似文献   

9.
《价值工程》2015,(32):15-18
城市轨道交通建设投资大、工期长、技术难度大,建设过程中涉及众多参与者,这决定了其在项目建设过程中会涌现大量的接口。接口管理是工程项目管理中最敏感又最难规范的地方,它直接决定项目管理的成败。本文首先依据原则筛选出了影响城市轨道交通接口管理绩效评估的主要因素,进而构建了评价指标体系,最后运用AHP和模糊综合评价法确定了针对城市轨道交通接口管理绩效评估的模型。模型结果表明,所构建的模型能够较好地反映城市轨道交通接口管理工作的落实情况,也可以依据数据分析出接口管理的薄弱环节,有利于在后期相关或类似项目建设过程的管理,实现城市轨道交通接口的有效管理。  相似文献   

10.
装甲装备是我军军事装备的重要组成部分,我军很大部分的装甲装备处于战备封存或储存状态,由于受到环境因素和管理因素的影响,其可靠性逐渐下降。如何保持储存期间坦克装甲装备的可靠性应引起相关决策部门的足够重视。文章主要分析了装甲装备储存可靠性的影响因素及研究方法,并且提出相应的储存可靠性评估参数,为装甲装备储存质量管理提供依据。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
杨明 《价值工程》2012,31(7):16-17
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。  相似文献   

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