太子河特大桥连续梁边跨现浇段及合拢段施工方案

文章通过客运专线(32+48+32)m连续梁施工的实例,详细阐述了连续梁边跨现浇段及合拢段的施工工艺,详细分析了该施工流程的控制要点。     

铁路客专特大桥跨国道连续梁支架法施工技术

本文结合铁路客运专线某特大桥跨国道连续梁(32+48+32m)采用满堂支架法现浇施工,详细介绍了支架预压、模板安装、混凝土浇筑、预应力张拉等施工技术。     

浅谈七箱单室梁架设施工技术

广珠城际轨道顺德站特大桥,桥梁结构布置类型为(39.3+64+39.3)m直线(四线)连续道岔连续梁+15孔32m七箱单室梁+(4×32)m(四线)道岔连续梁+(32+48+32)m缓和曲线连续梁,七箱单室梁中间三榀湿接后整体架设为全国首例,其箱梁在梁场内湿接,架桥机整体提运架工艺,及箱梁滑移梁技术为全国首创。根据七箱梁现场湿接的经验及其架梁的实际工艺,结合广珠城际轨道综合工程ZH-1标顺德梁场LC31.5-740运价一体式架桥机架梁工艺,介绍七箱单室梁架设施工工艺。     

现浇连续梁施工工艺

目前,在铁路建设中,跨越河流、城市道路等障碍物的桥梁以连续梁形式为主,后张法预应力现浇连续梁凭借其施工周期短的优势在铁路桥梁建设中得到较广泛的采用.武汉天兴洲大桥南岸引桥(客运专线)跨越武汉青山区友谊大道处采用(32+48+32) m等截面连续箱梁,文章详细介绍了该段桥梁采用的分段现浇连续梁的施工工艺.     

引江济淮特大桥转体梁称重及配重技术研究

越来越多上跨铁路桥梁为了尽量减少对铁路正常运营的影响,上构梁体采用转体法施工。新建合安铁路合九联络线引江济淮特大桥主跨以(32+48+32)m转体连续梁的形式上跨宁西铁路,本文结合引江济淮特大桥转体梁的施工实例,详细阐述了在转体前对转体梁进行称重试验的原理、步骤、计算公式及配重方法,以使转体梁在转体时处于良好的平稳状态,确保了施工安全及铁路运营安全。     

铁路多线梁避免架梁横移梁施工的方案优化

川南城际铁路CN-1标架梁区段包括白马西站特大桥,孔跨布置为19×32+(4×33)m道岔连续梁+(32+3×48+32)m连续梁,0#～19#跨为四线双幅箱梁结构。由于特殊孔跨原因,梁顶截面尺寸不一致,道岔梁为6.05m～9.175m渐变尺寸,与之相接的预制箱梁无法按照常规施工方法进行架设,需要进行横移梁施工。需增加临时支墩或加长加宽墩柱尺寸、增加横移装置和横移施工费用。安全风险大、施工周期长、措施施工费用多,梁场通过方案优化变更施工方案降低了安全风险、缩短施工周期,大大降低了施工措施费用。     

电网建设工程造价综合控制模式运用的探讨

本文介绍了现代项目管理理论中目标控制模式,分析了目前电网建设工程造价管理中多种典型控制措施的特点及面临的问题;并在分析的基础上,探讨如何按照工程建设程序,在电网建设工程造价管理领域中开展"目标确定+积极跟踪+有效控制"综合控制管理。     

新安矿区深部极软岩巷道锚网喷+网壳联合支护技术应用与实践

针对新安矿区深部极软岩巷经常发生严重底臌、两帮收缩且折帮、顶板非对称下沉、巷道全断面内缩、锚杆(索)拉断、反复修护的现象,分析巷道破坏特征及原因。设计出了锚杆+金属网+喷浆+反底拱+网壳联合支护方式,即采用锚网喷初次支护,再采用网壳二次支护,主动支护与被动支护相结合,保证岩体强度,控制巷道变形。在该矿+535轨道石门应用后,工程实践表明,从根本上控制了轨道石门的非线性大变形,该支护技术有效地控制了深部极软岩巷道围岩的大幅度破坏,保证了巷道全断面的稳定,取得了良好的技术经济效果。     

水质检测中滴定分析法问题探讨与研究

滴定分析法是水质分析中常用的一种方法,其中涉及到的Cl-、SO42-、Ca2+、Mg2+、CO32-、HCO3-、游离CO2、侵蚀性CO2等8项指标都可以用滴定的方法来检测其含量。通过实践,总结了这些常规指标的滴定中应该注意的一些问题。     

复合支护技术在深水平破碎岩层中的应用

深部破碎巷道具有非线性大变形特征,单一的支护方式难以控制。矿井在进入深部开采后,软岩巷道围岩出现显著变形,围岩破碎严重,对巷道围岩稳定性的控制变得极其困难。针对平煤四矿三水平上部变电所岩性较为破碎的特点,通过理论分析和对以往成功经验的借签,提出了采用锚网喷+锚索+U型钢支架+喷浆的支护技术,加强了深部破碎岩巷的支护,较好地解决了围岩松软破碎、高变形巷道的支护难题,为其它类似条件下巷道围岩控制提供了参考。     

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.