煤矿井下火灾预测与防治技术现状

评述了矿井火灾发生的原因及容易着火的地点，并阐述了矿井在发生火灾前可能出现的征兆。列举了近年来防灭火的预测方法、技术措施及研究进展。在防治煤矿井下火灾过程中，由于矿井的实际情况不同，单一的技术措施难以起到理想的效果，经常采用综合防治措施对井下火灾处理。     

浅谈煤矿重大危险源防治措施专家系统——知识库的构建

以煤矿井下重大危险源防治措施为研究目标,即瓦斯、突出、水灾、火灾、顶板、粉尘这"六大"灾害的防治措施为主,以掘进工作面和回采工作面为主要研究对象,构建煤矿井下重大危险源防治安全措施专家系统的"知识库",以期更好的指导煤矿企业安全生产,是当前煤矿企业安全事故频发的形势下,急于构建的以计算机为载体的应用系统。本文以瓦斯防治措施为例,简要叙述其知识库的构建过程。     

适合于煤矿井下应用的全面漏电保护方案分析

煤矿矿井的作业空间相对狭小,同时工作场所的湿度大、环境差、温度高、施工条件受限。尽管在煤矿井下采用了中性点不接地三相电网,同时使用屏蔽电缆、装设了保护接地、加装了必要的闭锁设施以及合理的电压等级来防止漏电的发生,但是依然不可避免的发生井下供电漏电现象。漏电现象的发生不仅可能引发人身触电,更严重的可能引发瓦斯爆炸以及火灾煤尘等更为恶劣的后果。文章从矿井漏电保护概述以及漏电保护装置的原理分析入手,重点论述了煤矿井下应用的全面漏电保护方案以及低压漏电保护存在问题及完善措施。     

煤矿井下火灾的抢救处理

煤矿火灾是井下5大自然灾害之一,因此,掌握火灾事故的预防和抢救处理方法就显得十分必要。     

反风演习技术在煤矿安全生产中的应用

矿井反风是在矿井发生火灾时的一项重要而有效的风流调度的救灾措施。特别是在矿井入风井筒、井底车场、入风大巷等进风井巷道发生矿井火灾（多为外因火灾）时,高温烟流和有害气体对井下作业人员的安全构成严重威胁。此时,可以采取矿井反风措施,使火灾烟流由进风井筒排出,从而保证井下作业人员的安全撤离和缩小灾害范围。因此《煤矿安全规程》规定矿井每年应进行一次反风演习,结合其它矿井反风的经验教训和龙王庄煤矿近几年来矿井反风演习发现的问题和改进后的效果进一步阐述了矿井反风演习的必要性。     

煤层自燃发火原因研究与探讨

矿井火灾是指发生在矿井地面或井下、威胁矿井安全生产、形成火灾的一切非控制燃烧。该文从火灾必须具备三个方面的条件、自燃经过的三个时期、发火四个条件、发火的因素等方面阐述了煤层发火的原因,具有一定借鉴意义。     

浅谈矿用防爆电气现状和发展

为了更进一步地预防危险环境电器火灾对煤矿井下安全的危害,阐述防爆电器设备的现状和发展趋势。     

一种新型井下语音报警系统的设计与应用

煤矿是高危行业,煤矿安全是煤矿生产过程中最重要的环节。井下的危险因素很多,如顶板、瓦斯、火灾、涌水、机电设备事故等。文章介绍了一种井下语音报警系统——BY8301语音报警系统,用于井下机电设备的安全监测。该系统制作简单、成本低廉,经过在井下试用,取得了较好的应用效果。     

试论井下漏电的原因、危害及预防

煤矿生产以井下巷道作业为主,由于井下环境恶劣,供电系统及设备容易发生漏电、人身触电、短路、过负荷、电火灾、电雷管提前引爆等电气事故.该文根据煤矿生产的环境特点,结合现场实际,从自然因素和人为因素等入手,具体分析了煤矿井下供电系统漏电的原因以及对煤矿生产和人身安全带来的危害,并提出了预防井下漏电及人身触电的具体措施,具有一定借鉴意义.     

试论井下漏电的原因、危害及预防

煤矿生产以井下巷道作业为主,由于井下环境恶劣,供电系统及设备容易发生漏电、人身触电、短路、过负荷、电火灾、电雷管提前引爆等电气事故。该文根据煤矿生产的环境特点,结合现场实际,从自然因素和人为因素等入手,具体分析了煤矿井下供电系统漏电的原因以及对煤矿生产和人身安全带来的危害,并提出了预防井下漏电及人身触电的具体措施,具有一定借鉴意义。     

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。