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1.
加强输电线路的完善与建设是保证我国电力正常发展的必要手段,避免了输电不足、电力网络不能进行正常电力传输的现象,紧凑型输电铁塔是近年来电力传输的主要技术手段。文章通过阐述紧凑型输电铁塔的工作原理,分析了影响我国紧凑型输电铁塔静力性能的因素,探究紧凑型输电铁塔的静力性能。  相似文献   

2.
输电线路铁塔是进行电力输送的关键,输电线路的铁塔结构施工一般都采用灌注群桩基础机构,桩基础结构施工质量的好坏对电力传输过程中的安全以及电力输送的通畅程度有很大的影响。文章对输电线路灌注群桩基础施工质量控制的策略进行了分析,旨在提高输电线路铁塔的结构的稳定性和安全性。  相似文献   

3.
输电线路杆塔是进行电力输送的一个重要组成部分,输电线路杆塔结构的稳定与否对电力传输过程中的安全性和连续性有很大的影响,基础施工质量的好坏又是影响输电线路杆塔结构稳定的一个重要原因,因此,输电线路杆塔结构的基础的稳定性关系到杆塔运行的稳定性和安全性。文章对输电线路杆塔基础施工技术及其方案的优化进行分析和探讨,旨在提高输电线路杆塔基础施工质量和安全性。  相似文献   

4.
随着社会的进步,人们逐渐对生活质量重视起来,而电力输送的稳定与否,是直接关系到人们生活质量的一大因素。电力的输送,主要依靠的是输电线路,输电线路的安全与稳定,关系到国家和人民生活的安全和稳定。为了使输电线路保持其安全和稳定,必须对其进行定时定点的检修和检测,发现问题及时作出相应的补救措施,保证电力的稳定输送。文章主要就是对输电线路运行检修和检测进行简单的描述,详细分析其主要的方法。  相似文献   

5.
随着社会的进步,人们逐渐对生活质量重视起来,而电力输送的稳定与否,是直接关系到人们生活质量的一大因素。电力的输送,主要依靠的是输电线路,输电线路的安全与稳定,关系到国家和人民生活的安全和稳定。为了使输电线路保持其安全和稳定,必须对其进行定时定点的检修和检测,发现问题及时作出相应的补救措施,保证电力的稳定输送。文章主要就是对输电线路运行检修和检测进行简单的描述,详细分析其主要的方法。  相似文献   

6.
输电线路是电力系统设备与设施当中的重中之重,更是电力传输的运输兵,输电线路等于各个变电站同发电厂之间为用户进行电能分配与输送的联络员。输电线路的保障措施包括张力放线和放线施工。如果张力放线及施工能够采用科学的管理方法,就能在传输中大大节约成本而且保证整个输配电系统的有效和连贯。  相似文献   

7.
随着社会的进步,人们逐渐对生活质量重视起来,而电力输送的稳定与否,是直接关系到人们生活质量的一大因素。电力的输送,主要依靠的是输电线路,输电线路的安全与稳定,关系到国家和人民生活的安全和稳定。为了使输电线路保持其安全和稳定,必须对其进行定时定点的检修和检测,发现问题及时作出相应的补救措施,保证电力的稳定输送。文章主要就是对输电线路运行检修和检测进行简单的描述,详细分析其主要的方法。  相似文献   

8.
随着输电系统运行的稳定性的不断提高,高电压控制保护技术的发展,对系统的稳定问题的研究正方兴未艾,它在强电方面应用的可能性也与日俱增。超导技术更为有利可以期待在不远的将来超导将使电能的传输发生划时代的变革并进一步推进直流输电的发展。输电系统必须采取各种措施来提高输电系统的稳定性,从而提高输送能力。本文主要探讨电力输电线路稳定性及其提高措施。  相似文献   

9.
在电力供电供应输送过程中,电力传输中产生的损耗给国家及人民造成较大的损失,用户对电力供应的要求也越来越高,如何应用新技术减少输电线路损耗的研究迫在眉睫。本文对柔性输电系统FACTS及其各种控制器进行了综述,并对UPFC进行了具体的介绍。充分体现出智能电网在降低线路损耗中发挥着重要作用。  相似文献   

10.
电力电容器是一种静止的无功补偿设备,其主要作用是向电力系统提供容性无功功率,提高功率因数,可以减少输电输送电流,减少输电线路功率和电压损耗,改善电能质量,提高设备利用率。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
杨明 《价值工程》2012,31(7):16-17
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。  相似文献   

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