浅谈如何处理设备故障

机械设备的突发性故障率高、停机损失大、维修费用高、维修周期长等问题,成为困扰企业的突出问题.如何应用现代故障诊断技术建立设备故障预警制度,是摆在企业面前的一个主要课题.本文阐述了机械设备故障诊断的理论、实施方法、仪器和典型零件的应用等内容,具有一定借鉴意义.     

煤矿设备维修技术的现状与发展趋势

煤矿设备关系到煤炭企业的生产效率,避免煤矿设备非计划停机是煤矿企业管理的重要内容.为避免煤矿设备的非计划停机,结合工作经验,就当前煤矿设备维修技术的现状进行深入分析,并就维修技术的发展趋势进行全面阐述,以期提高煤矿设备的维修技术.     

浅谈如何处理设备故障

机械设备的突发性故障率高、停机损失大、维修费用高、维修周期长等问题,成为困扰企业的突出问题。如何应用现代故障诊断技术建立设备故障预警制度,是摆在企业面前的一个主要课题。本文阐述了机械设备故障诊断的理论、实施方法、仪器和典型零件的应用等内容,具有一定借鉴意义。     

基于时间延迟的设备周期预防性维修模型

将运用时间延迟和可靠性数学的相关理论,探讨周期预防维修策略下的设备可用度和经济性,建立维修模型,确定预防维修周期,最后还将结合具体案例,演示该模型解决实际问题的过程。     

浅谈如何处理设备故障

机械设备的突发性故障率高、停机损失大、维修费用高、维修周期长等问题，成为困扰企业的突出问题。如何应用现代故障诊断技术建立设备故障预警制度，是摆在企业面前的一个主要课题。本文阐述了机械设备故障诊断的理论、实施方法、仪器和典型零件的应用等内容，具有一定借鉴意义。     

石化企业换热设备检验与维修略谈

换热设备是石油化工、能源等工业部门应用最广泛的过程设备之一,经过一段时间周期的运行,石化企业将停机检验和修理,防止存在严重缺陷的容器投入(继续)使用;工厂在耐压试验中易忽视的几个问题、热交换器的裂纹修复方案等对其他石化企业换热设备检验与维修具有参考意义。     

石化企业换热设备检验与维修略谈

换热设备是石油化工、能源等工业部门应用最广泛的过程设备之一,经过一段时间周期的运行,石化企业将停机检验和修理,防止存在严重缺陷的容器投入(继续)使用;工厂在耐压试验中易忽视的几个问题、热交换器的裂纹修复方案等对其他石化企业换热设备检验与维修具有参考意义。     

加强状态监测 提高设备预知检修水平

众所周知，事后维修的方式，即：只是在设备损坏不能运作时，才将设备分解、拆除，检查出损坏原因，从而更换相关的零部件。这种维修方式显然带有被迫停车的性质。被迫停车维修，往往因不能及时修理或更换已损的零部件而扩大设备损失、增大检修量、引发故障多、停机时间长、维修费用高。在维修实践中，我们逐渐     

浅析矿山企业备件管理

备件管理是设备维修和企业管理的一个重要环节,由于矿山企业的特点,规模比较大,部门较多,所以备件管理发放的难度相对就要比其他企业大,所以如何建立一套行之有效的、科学的备件管理制度,在既能保证设备维修的需要,尽可能地缩短停机时间,又能压缩库存成本,是每一个矿山企业所最求的目标。本文就这一问题进行一些粗浅的探讨,望对矿山企业有一定的借鉴作用。     

威布尔分布下的预防维修模型在产品生产期内的应用

为了解决生产计划期内设备出现故障并导致较长时间停机的情况下如何确定出合理的维修间隔期的问题,应用时间延迟理论进行预防维修活动,并以维修间隔期和生产期总收益建立函数关系。根据故障记录数据和预防维修活动的检查数据,对设备预防维修间隔期用威布尔分布进行优化决策,结合整个生产计划期建立预防维修优化模型,并计算在维修间隔期内出现故障的次数。最后通过案例研究表明合理的预防维修间隔期可以提高产品生产期内的收益。     

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.     

Incumplimiento del salario mínimo en Europa central y oriental

En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.     

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.     

Cultural Economy Planning in Creative Cities: Discourse and Practice

While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.     

Input/output ranges and performance: an examination of US machine tool producers

Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.     

Sixty years of discrimination and diversity research in human resource management: A review with suggestions for future research directions

This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years.     

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 Early History of the Cumulants and the Gram-Charlier Series

The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix.