半刚性基层沥青路面裂缝成因分析及处治对策

裂缝是沥青路面最主要的一种破损形式。路面出现裂缝不但影响行车的舒适性和路容美观,而且极易扩展造成路面的结构性破坏,缩短路面的使用寿命。根据苏221线省道启东段公路沥青路面结构特点,通过对沥青路面裂缝裂缝部位现场钻取路面芯样的方式进行检测,结合当地的环境条件、行驶车辆情况等因素系统分析裂缝的成因,针对裂缝的不同成因,提出相应的处治对策。同时,总结裂缝处治技术,为以后的路面裂缝处治提供有效的治理手段。     

公路沥青路面裂缝处治技术研究

沥青路面裂缝是公路路面破损病害中最常见、最易发生和最早期产生的病害之一,因此,在裂缝产生初期寻求及时、适当、有效的路面裂缝处治方法,是有效的路面预防性养护手段。     

湖南省国省干线公路路面改造中反射裂缝的处治研究

旧水泥砼路面加铺沥青砼面层非常容易形成反射裂缝。文章介绍了常用的反射裂缝防治措施。结合湖南省国省干线公路路面改造中对原有水泥砼路面处治方案,分析了原旧水泥砼路面处治方案对消除反射裂缝的效果,结合工程实例,提出了尽量少采用整体利用原有水泥砼路和尽量多采用共振机械碎石化原有水泥砼路面。     

高速公路路面裂缝养护与处治技术分析

高速公路路面裂缝通常难以彻底消除,需通过科学有效的养护和处治,降低影响,延长高速公路寿命。文章对高速公路路面裂缝原因进行了分析,并在此基础上就如何进行养护和处治谈了观点和认识,以供参考。     

旧水泥混凝土路面“白加黑”前压浆处治技术

旧水泥混凝土路面加铺沥青层(简称"白加黑")以其良好的使用性能在国内外得到广泛应用,反射裂缝是"白加黑"的主要病害,旧水泥混凝土路面良好的结构强度是控制或延缓反射裂缝发生的基础。对旧水泥混凝土路面采用压浆处治解决板下脱空问题,结合梅河高速公路加铺沥青混凝土工程,对板底脱空原因、压浆加固机理、压浆处治方案、压浆施工工艺及质量控制做了介绍。     

水泥混凝土路面裂纹处治方法研究

文章以水泥混凝土路面裂纹处治方法为研究对象,针对相关问题展开了讨论。文章分别介绍了裂缝的密封性修补技术、改善传荷能力修复方法、斜向植筋法应用等内容,以期为水泥混凝土路面裂纹处治实践提供参考。     

浅谈河西走廊地区水泥混凝土路面断板裂缝防治对策

本文通过河西走廊地区水泥混凝土路面断板、裂缝成因的简要分析,阐述了温带大陆型气候区水泥混凝土路面施工的预防和处治措施,对我国西北干旱、荒漠区路面施工具有借鉴意义。     

聚酯玻纤布在延缓基层反射裂缝处治中的应用

路面裂缝多为路基顶部及基层的反射裂缝,严重影响了路面使用质量,增加了养护难度,提高了养护成本。反射裂缝的延缓治理中,粘贴柔性土工布较为常见,靖王高速在路面大修中采用粘贴聚酯玻纤布应用效果良好,施工工艺较为简单,造价较低,具有较好的经济效益和社会效益。本文结合靖王高速公路路面大修实例,分析了聚酯玻纤布在缓解半刚性基层反射裂缝处治应用中的一些施工技术,为同行提供参考。     

废旧轮胎橡胶粉改性沥青处治路面单条裂缝

文章结合大理总段国省干线采用"废旧轮胎橡胶粉改性沥青灌缝料"处治裂缝效果为例,介绍了消除沥青路面单条裂缝的灌缝材料加工、技术控制、自创生产设备、开槽修补法的主要工艺,并对沥青路面裂缝处治方案技术进行了成本对比分析,证明了使用橡胶粉改性沥青修补路面单条裂缝取得了良好的经济效益和社会效益。     

浅谈沥青路面裂缝预防及治理

随着我国路网结构不断改造升级,沥青路面以其优良的工程性能和显著的经济效益在我国公路建设中得到了广泛的应用,并在公路建设中的重要作用越来越凸显。如何提高沥青路面的使用寿命,研究沥青路面的破坏形式,有针对性的进行预防,显得尤为重要,这也是我们公路养护的重要课题。根据历年来我段路况调查结果,新建沥青路面的早期病害表现形式主要是路面裂缝,路面裂缝出现后,如不及时处治,经行车碾压和雨水渗入路基会迅速形成翻浆、松散等结构性破坏,路况质量急剧下降,所以裂缝处治是路面早期养护和预防性养护的重要内容。     

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。