耙斗桥式清污机在水电站的应用

文章介绍了水电站桥式清污机结构的布置、设计,以及桥式清污机的工作原理.     

回转式清污机清污能力与造价分析

大型泵站回转式清污机桥使用现状和南水北调工程清污机清污机使用规划,比较计算不同宽度的回转式清污机清污能力等的主要参数,通过对清污机桥阻水率、清污机清污能力以及设备和工程造价的分析比较,结合工程经验,推荐使用合适宽度的清污机,以达到满足清污效果和节约工程造价的目的。     

GD500-C型抓斗移动式自动清污机在龙溪电厂的应用

抓斗移动式清污机用于水电厂的发电机组进水口,用以清除多组拦污栅拦截的各种杂物。该机器的齿耙能插入栅片中,具有清污彻底、清污量大、操作方便的优点。文章介绍了抓斗移动式清污机在龙溪电厂应用中的改造经验及改造后的运行情况和实际效益。     

GD500-C型抓斗移动式自动清污机在龙溪电厂的应用

抓斗移动式清污机用于水电厂的发电机组进水口,用以清除多组拦污栅拦截的各种杂物。该机器的齿耙能插入栅片中,具有清污彻底、清污量大、操作方便的优点。文章介绍了抓斗移动式清污机在龙溪电厂应用中的改造经验及改造后的运行情况和实际效益。     

探究PLC变频调速在桥式起重机中的实际应用

在桥式起重机的变频调速中应用PLC可编程控制器,可以实现起重机电机的变频调速,在桥式起重机中发挥重要的作用。PLC变频调速系统可以对起重机的运行状况和运行数据进行实时监测,提高桥式起重机的工作效率,促进PLC变频调速在桥式起重机中的发展。本文简述PLC变频调速技术,通过对桥式起重机工作现状的分析,提出PLC变频调速在桥式起重机中的应用。     

小议水工建筑物启闭机设计

水工建筑物启闭设备作为闸门的一部分,用于操作门叶的移动,达到开启、关闭孔口的目的。在水利水电工程中,将启闭闸门用的起重机械统称为启闭设备,包括启闭闸门的启闭机、取水口拦污栅的清污机。     

基于Solidworks的桥式起重机主梁有限元分析

本文针对桥式起重机的结构特点，采用三维设计软件solidworks建立了桥式起重机主梁结构的三维模型，并对其进行了应力分析与位移分析。分析指出主梁腹板截面突变处存在严重应力集中，降低了桥式起重机的承载力，对桥式起重机的正常运行过程存在安全影响。因此有必要在改造桥式起重机时，对主梁腹板进行特殊的考虑。     

浅谈QD40t-7．5m-18m吊钩桥式起重机设计要点

公司产品已定型成为系列，为了满足部分客户的需要，同时完善公司桥式起重机中小跨度系列的设计工作，对QD系列桥式起重机进行非标准化设计，现对qD40t-7．5m-18m吊钩桥式起重机的设计要点进行简单的分析，保证小跨度桥式起重机结构满足要求。     

桥式抓斗卸船机啃轨的故障分析与解决措施

桥式抓斗卸船机作为生产中的重要机械,在实际的施工中占据重要的地位。但是随着桥式抓斗卸船机使用时间的延长以及使用过程中出现的满负荷甚至是超负荷的运行状况的存在,从而使桥式抓斗卸船机啃轨现象频发的发生。本文从啃轨现象及原因入手,提出了排除桥式抓斗卸船机啃轨的措施。     

通用桥式起重机大车运行机构啃轨问题的探讨

针对TSG Q0002-2008《起重机械安全技术监察规程---桥式起重机》,GB/T10183----2005《桥式和门式起重机制造和轨道暗中公差》及GB/T14405----1993《通用桥式起重机》的要求,结合本人在实际检测检验过程中遇到的大车运行机构啃轨现象,对通用桥式起重机大车运行机构啃轨产生的原因及修理方法进行分析和处理。     

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.