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基于双层土壤中单根垂直接地棒的接地电阻公式,导出了任意布置的N根垂直接地棒组的接地电阻公式,与国外的Schwarz半解析公式,Nahman半解析公式以及Chow等人的解析公式进行了比较,结果表明,此文提出的新公式具有更大的适用范围和更好的计算精确度,可供工程设计使用。 相似文献
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《中国电力企业管理》2007,(21)
"中国电力的快速发展得益于电力市场化改革。特别是2002年以来,电力工业实现了从政企合一到政企分开、从垄断经营到市场竞争、从垂直一体到垂直分离的历史性转变。电力改革极大地 相似文献
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本文基于中国2007~2019年省级面板数据,实证研究财政垂直失衡对产业升级的影响,并构建两个独立中介效应模型和一个链式多重中介效应模型,进一步考察财政垂直失衡影响产业升级的渠道。研究表明:(1)财政垂直失衡总体上不利于产业升级;(2)财政垂直失衡可通过增加民生性支出和抑制新型城镇化两个独立中介渠道对产业升级产生负向影响;(3)财政垂直失衡可以通过“增加民生性支出→抑制新型城镇化”的链式中介渠道对产业升级产生阻碍作用;(4)在链式多重中介效应中,新型城镇化的中介效应最为突出。 相似文献
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B665牛头刨床在工作时,除水平进给可自动外,垂直进给、非工作时工作台的水平移动和垂直升降均须手动,尤其是调整工作台上升时,操作工的体力消耗很大。为了减轻劳动强度、提高工效,我们进行了改装。经改装,在保持原设计进给量不变、不增加动力装置的情况下,实现了工作台在水平和垂 相似文献
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基于隔离机制的竞合效益——以Nike等3组企业为样本的跨案例研究 总被引:1,自引:0,他引:1
本文试图在竞合理论而非竞争理论的范畴内重新解读与进一步研究隔离机制。通过深入案例样本,考察隔离机制的竞合效益在企业经营实践中的存在现象与实际效果,提炼理论观点并据此构建理论模型。在系统的理论推演基础上,深入挖掘隔离机制的竞合效益在垂直竞争维度与水平竞争维度的生成机理,析出与归纳基于差别优势的隔离机制效果——树立纵向障碍的产业保护、获取横向竞争优势与嵌入优势、做强做大产业与市场,并最终实现竞合共生。基于上述研究结论,本文比较分析并指出了隔离机制论与现有竞合理论的根性差异。 相似文献
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《中国电力企业管理》2007,(11):6-6
“中国电力的快速发展得益于电力市场化改革。特别是2002年以来,电力工业实现了从政企合一到政企分开、从垄断经营到市场竞争、从垂直一体到垂直分离的历史性转变。电力改革极大地解放了电力工业生产力,促进了电力工业持续快速发展,基本解决了长期制约我国经济社会发展的缺电问题。” 相似文献
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全球经济一体化背景下,发达国家利用环境贸易政策来实现竞争优势已经出现趋势。本文介绍了欧盟的环境贸易政策,基于环境贸易政策的背景,预设国内外上、下游企业之间已经构成一个产业链,应用Stephen F.Hamilton的垂直型结构模型,将数量竞争分为四种不同情况,给出了最大均衡供给量。分析表明,如果采用垂直合约,则数量竞争和价格竞争的最佳非合作环境政策均是庇古(Pigouvian)税。在国内下游出口商与上游进口品供应商能够达成合约的条件下,政府之间存在着非合作环境政策。因此,我国的产业环境贸易政策应当是努力实现环境成本的内部化。 相似文献
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基于模块化技术的作用,资产专用性下降,垂直一体化企业被分解,全球价值链得到重构,跨组织大规模协作则逐渐成为组织间合作的重要形式,成为维基经济中财富创造的新引擎。它使企业能够利用群体智慧与自组织作为有力的杠杆来削减成本、快速创新,与顾客、合作伙伴共同实现价值的创造,从而顺利地构建起21世纪的商业平台。本文就跨组织大规模协作这种新型生产组织形式的特征、实现要素以及运行机制进行探讨,旨在为我国的企业发展与变革提供启示。 相似文献
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在分析虚拟企业战略执行力的含义以及虚拟企业战略执行流程的基础上,提出了虚拟企业战略执行力的5个构成要素:战略、成员、沟通、激励机制以及企业文化,并就各构成要素对整体战略执行力的影响进行了探讨. 相似文献
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This paper studies the implementation of Reasonably Efficient Operator margin squeeze tests by National Regulatory Authorities in European telecommunications markets. It provides a theoretical framework which shows how regulatory authorities deal with the asymmetries between entrants and incumbents by adjusting the Equally Efficient Operator margin squeeze test used in competition policy. Using this framework, this paper presents a benchmark of implementation choices by inspecting authorities' guidelines, market analyses, and decisions. Whereas some implementation choices are very similar across authorities' decisions, some others display a strong heterogeneity. 相似文献
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本文简述准时生产方式的基本思想、目标、基本实施手段,通过对影响企业准时生产方式实施效果的主要因素的分析,针对其中四个主要因素进行论述,并有针对性地提出具体解决措施,为企业实施准时生产方式指出一条有效途径。 相似文献
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This paper focuses on middle management motivation to implement strategy. It uses expectancy theory to predict that middle managers will intervene in organizational decision-making processes leading to strategy implementation when their self-interest is at stake. It develops the notion of ‘counter effort’, as an extension of expectancy theory. The paper reports an empirical study of middle management intervention theory. The data and analysis of this study provide strong, if indirect, evidence that middle managers who believe that their self-interest is being compromised can not only redirect a strategy, delay its implementation or reduce the quality of its implementation, but can also even totally sabotage the strategy. Implications of the study for the management of strategy implementation are developed. 相似文献
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Vinod K. Gupta 《R&D Management》1989,19(2):173-183
Abstract
The paper describes the experiences of CSIR in developing an in-house capability and implementation process of R&D management development programmes. The conceptual approach of the laboratory-based R&D management development programmes is described. Different phases in the process of implementation are presented along with the case studies of recent training programmes in two different laboratories. Some of the key aspects of the training programmes —- successful implementation, relationship with policy-making, and improving R&D performance have been examined. The role of international co-operation in R&D management development is suggested. The paper also discusses the future prospects of R&D management development programmes in the country. 相似文献
The paper describes the experiences of CSIR in developing an in-house capability and implementation process of R&D management development programmes. The conceptual approach of the laboratory-based R&D management development programmes is described. Different phases in the process of implementation are presented along with the case studies of recent training programmes in two different laboratories. Some of the key aspects of the training programmes —- successful implementation, relationship with policy-making, and improving R&D performance have been examined. The role of international co-operation in R&D management development is suggested. The paper also discusses the future prospects of R&D management development programmes in the country. 相似文献
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Kristine Dery David Grant Bill Harley Christopher Wright 《New Technology, Work and Employment》2006,21(3):199-214
This paper reviews literature that examines the design, implementation and use of Enterprise Resource Planning systems (ERPs). It finds that most of this literature is managerialist in orientation, and concerned with the impact of ERPs in terms of efficiency, effectiveness and business performance. The paper seeks to provide an alternative research agenda, one that emphasises work- and organisation-based approaches to the study of the implementation and use of ERPs. 相似文献