针对钢结构设计中稳定性的研究

在现代的诸多结构形式中都会用到钢结构,为了提高钢结构的稳定性,确保其使用安全性,强化使用功能,就需要对影响钢结构的问题及因素进行详细的分析,并结合工程实践总结出提高钢结构稳定性的具体措施,从而大大提高工程项目的施工质量,保证其竣工后的正常安全使用.     

浅谈钢结构焊接中的常见问题与应对措施

随着建筑业的发展,钢结构焊接也被广泛运用到各种施工工程当中,但有利必有弊,在进行钢结构焊接过程因其切面大小不均、位置上不对等这些因素,很容易造成钢结构焊接的失误变形等一系列问题.本文就钢结构焊接中出现的一些常见问题提出相应的措施,以便施工者更好保质的运用钢结构焊接.     

防止和校正钢结构变形研究

新建项目有大量的钢结构,如何防止钢结构变形及矫正变形是钢结构生产和安装过程中的一项重要技术问题,阐述了预防和校正钢结构变形的各种方法优点、原理,同时结合产品介绍了采用火焰矫正焊接变形所要考虑的因素.     

浅谈钢结构稳定性设计

钢结构在我国现代化建设中的地位正在日益突出,在国民经济的各个领域都得到了大量应用,随着我国钢产量的持续增长,遥遥领先于世界各国,今后钢结构的发展前景和应用范围将更加广泛.本文针对钢结构稳定性设计提出了在设计过程中设计人员应须明确了解的一些基本概念,如强度与稳定的区别,失稳的分类,钢结构稳定设计原则,钢结构设计特点及钢结构稳定性设计的加固措施,以便于帮助设计人员在设计中更好地完成稳定性设计;在稳定性设计中另一个导致构件和结构失稳的因素就是设计人员对这些结构性能认识不够,因此本文提出了现有钢结构稳定性存在的一些问题,以便设计人员参考.     

钢结构脆性破坏之我见

文章通过对钢结构脆性破坏特征和破坏因素的分析,有针对性地提出了防止钢结构脆生破坏的一些措施,这些措施对有效防止钢结构脆性破坏的发生,以及钢结构的应用和发展前景具有十分重要的现实意义。     

钢结构脆性破坏之我见

文章通过对钢结构脆性破坏特征和破坏因素的分析,有针对性地提出了防止钢结构脆生破坏的一些措施,这些措施对有效防止钢结构脆性破坏的发生,以及钢结构的应用和发展前景具有十分重要的现实意义。     

钢结构工程施工管理安全防护分析

文章对现今应用广泛的钢结构工程施工管理中存在的问题及隐患进行了探讨，采用因素分析的方法对钢结构施工管理过程的安全与防护进行了阐述，通过对钢结构工程施工管理环节的控制与监督，提高钢结构工程施工的安全系数，优化钢结构工程施工管理的安全性和提高防护意识。     

浅析钢结构桥梁中焊接质量的影响因素

本文从钢结构桥梁施工中影响焊接质量的因素出发,分析并讨论了各类因素对焊接质量的影响。焊接工艺以及钢材的选择必将对钢结构桥梁的适用性、耐久性、安全性造成一定的影响,如果所选焊接工艺与工程项目不匹配,可能导致后期运营和维护成本的增加,甚至减少钢结构桥梁的使用寿命。因此在不同工程选择更合适的焊接工艺,将是设计单位和施工单位需要考虑的因素之一。     

论述论矿山钢结构的防腐蚀技术

钢材是建筑中常见的使用材料,为金属材料.首先想到的就是金属材料的腐蚀性,在应用的过程中会受到一些不可避免的因素导致钢材被腐蚀,金属结构一旦被腐蚀,其硬度等性能就会大幅度下降,对工程存在一定的安全隐患,所以对此问题我们一定要高度重视,矿山工作往往具有一定的危险性,需要相应结构的保障,矿山中的钢结构就显得尤为重要.矿山建筑中钢结构的防腐工作是十分重要的,是对矿山建筑稳定性的保障.被腐蚀的钢材在使用中很危险,一旦发生事故,不仅仅会造成巨大的经济损失,还会对矿山中的工作人员的生命安全造成巨大影响,根据矿山中钢结构的实际情况,提出矿山钢结构的防腐蚀技术,提升矿山建筑的安全和稳定.     

浅谈高层钢结构施工技术

我国钢结构住宅起步很晚,只是改革开放后,从国外引进了一些低层和多层钢结构住宅,才使我们有了学习与借鉴的机会.高层钢结构施工因为其工程造价较低、抗剪、弯性能好、钢结构施工焊接较快,所以被现代高层建筑应用较多.现今建筑行业高层钢结构广泛占领建筑市场,钢结构施工中的质量影响着高层钢结构实体的安全,怎样对高层钢结构施工质量进行有效控制必须引起重视.本文首先从施工前的准备工作开始论述,重点讲解了高层钢结构体系的施工准备到竣工验收的流程.高层钢结构施工技术主要包括如下几点内容:(1)高层钢结构施工前需要的准备工作;(2)高层钢结构塔吊的选型与合理布置;(3)高层钢结构选材筛选;(4)高层钢结构现场制作与安装施工要求;(5)高层钢结构安装工程竣工验收资料.     

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。