华丽高速公路新庄特大桥混凝土泵送施工方案

以华丽高速公路新庄特大桥建设为例,分析研究了此种高墩桥梁混凝土泵送、布管、水洗等施工难点,特提出混凝土泵的选择与设置的具体方法,并在布管、泵送、洗管等关键作业以及混凝土料的要求上,提出详细的施工措施。实践表明,该混凝土泵送施工方案高效可行,能够满足此种距离远、高差大的高墩桥梁施工需求。     

山岭重丘区高速铁路移动模架现浇梁高墩大跨连续刚构施工技术

近年来我国交通事业不断发展，急需修建更多的大跨度桥梁以跨越大江、大河和山沟，预应力混凝土连续刚构桥应运而生,高墩大跨度连续刚构桥越来越多。高墩大跨连续刚构施工和运营过程中尚存在很多问题，本文通过对高墩、移动模架、连续刚构施工各工序存在的技术难题攻关，不断完善山岭重丘区移动模架、高墩大跨连续刚构施工工艺，总结整理移动模架、高墩大跨连续刚构施工综合技术。通过对桥梁应力和线性数据监控对比分析，及时调整施工过程参数，确保高墩大跨连续刚构工后受力工况及线性控制符合设计要求，为后期安全运营提供保障。     

保阜黑崖沟特大桥柔性薄壁空心高墩施工技术

本文结合保阜黑崖沟特大桥柔性薄壁空心高墩施工,对高墩施工关键技术进行了深入研究,采用一系列施工技术,提出深谷飓风高墩大跨桥梁施工安全技术措施,为类似项目提供成熟经验。     

泵送混凝土在铁路工程中的应用

从世界上第1台混凝土泵出厂以来,至今已有近90年历史。随着混凝土泵制造技术的不断更新和现代工业的发展,混凝土泵送施工发展迅速,在铁路工程施工中,圬工方量大的如隧道、桥梁等工程较多,特别是近几年来进行西部大开发,西南山区铁路建设投入加大,出现了很多施工条件困难或场地狭窄、混凝土难以用普通方法     

浅谈高墩大跨桥施工

随着桥梁设计施工技术的发展,高墩大跨桥施工技术应用的越来越多,普遍受到关注。爬模是当前高桥墩较为理想的模架,它集工作平台、支架、模板、提升设备为一体,能升、能降,施工循环周期短。具有劳动力消耗量低,节省用钢量,砼外表平整光滑美观的特点。目前大跨桥爬模施工技术是高墩大跨桥施工中比较先进的技术。现对此项施工技术进行简单的分析。     

基于大跨径高墩桥梁施工技术研究

随着社会的发展,我国路桥建设行业也呈现突飞猛进的发展。路桥工程施工质量和施工技术也大幅度的提高。大跨径高墩桥梁施工技术成为路桥工程施工中常用的一种技术。为了分析大跨径高墩桥梁施工技术,下面首先介绍了高墩大跨度桥梁施工概况,然后对高墩大跨度桥梁施工技术进行详细分析,以供参考。     

桥梁高墩爬模施工技术研究及应用

近年来,我国交通事业的蓬勃发展,公路、铁路、城市道路中的桥梁工程受大跨(斜拉桥、悬浇桥、深峡谷)度的要求,桥墩(塔)越来越高,对高墩(塔)的施工技术,已成为桥梁工程师研究的课题。本文针对桥梁高墩的关键技术之一,爬模施工技术作了研究分析。     

清连高速特大桥高墩砼泵送施工的控制

在悬臂式特大桥高墩施工中，砼泵送施工控制极为重要。对高墩泵送砼进行切实可行的控制要做到：选择最佳配管设计，正确处理管道连接；严格要求卧泵操作手规范操作；加强混凝土拌和楼管理，严格控制混凝土拌制质量等。文章对高墩砼泵送施工中的配管设计、管道连接、卧泵操作、拌和楼管理、砼拌制质量控制等进行了阐述。对同类桥梁高墩施工具有一定的参考意义。     

复杂条件下高墩及大跨度系杆拱桥系梁现浇支架研究

新建蒙西至华中地区铁路煤运通道跨新西公路大桥主桥为1-80m下承式钢管混凝土系杆拱.桥梁上跨高速公路,高墩、大跨径、大断面及复杂的地形条件给系梁现浇支撑系统的设计及施工造成极大的难度.施工时采取针对性的科学支撑系统设计严格控制施工质量,最终克服高墩、大跨径、大断面及复杂地形、构件吊装难度大和安全风险极高等难题,顺利完成系梁浇筑任务,对相似项目的支架设计及施工具有较强的借鉴作用.     

湖美溪大桥0号及平衡段托架吊支架施工方案研究与设计

随着高墩大跨连续刚构及连续梁桥的广泛应用,使得挂篮悬臂浇筑法成为此类桥梁建设的重要选择,而其0#段、边跨平衡现浇段以及中跨合龙段的施工方案的选择又是挂篮悬臂浇筑施工的重要组成部分.文章针对桥梁墩高达107 m的湖美溪大桥(82+150+82)m预应力混凝土连续刚构桥之0#段、边跨平衡现浇段以及中跨合龙段现浇施工托架、吊...     

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。