输变电工程综合造价指数分析方法

针对输变电工程造价分析中无法兼顾工程建设造价总体水平与年度之间指标可比性的问题,研究并提出反映输变电工程总体变化趋势的输变电工程综合造价指数,通过统一技术方案规模,剔除技术因素的影响,可更加客观地反映造价变化的幅度;采用指数法分析了2007年电网工程造价指数。分析结果表明：输变电工程综合造价指数分析法实现了对输变电工程造价水平变化的宏观描述。     

宁夏地区输变电工程造价统计特性研究

<正>以2014～2018年宁夏地区输变电工程项目造价数据为基础,对不同电压等级下各类型变电、架空线路工程决算单位造价进行概率分布分析。通过分析计算其近似概率密度及近似累积概率密度分布函数,可得到各类型输变电工程的普遍造价分布区间,有助于提高电网公司对输变电工程建设成本的管控能力。     

基于BP神经网络的输变电工程造价偏差动态预警

正通过构建输变电工程造价偏差动态预警模型,提出造价偏差阈值的确定方法。动态采集目标工程造价信息,利用训练后的神经网络预测待评估工程造价,实时判断未来多个时点的工程造价预测值与目标值之间的偏差,进行动态预警。强化工程造价过程管控,对于降低电网建设成本,减少计价误差,防范工程建设和财务风险,促进工程建设依法合规,提高造价控制"精益化"水平具有重要意义。     

典型造价在输变电工程中的具体应用

电网工程造价构成电网企业的主要运营成本,直接影响电价水平.典型造价是国家电网公司为规范电网工程建设市场行为、有效控制工程造价而颁布的行业指导性标准.本文以泰北输变电工程为例,结合典型造价对案例工程造价的合理性进行了详细剖析,对实际工作具有一定的参考价值.     

输变电工程建设队伍专业管理实践

正国网山东潍坊供电公司通过组建基础信息库、实施标准化建设、注重专业人才培养、加强专业竞赛交流、细化专业管理评价等手段,强化建设队伍管理,提升建设队伍技能水平,打造专业、高效的建设队伍。输变电工程建设队伍专业管理是指公司围绕输变电建设的重点工作,按照建设项目安全、质量、技术、造价等     

输变电工程造价分析工作研究

输变电工程造价的控制与管理是电网建设的重要内容。本文通过对国网四川省电力公司(以下简称公司)2015年造价分析工作进行总结分析,对2010~2014年的输变电工程造价水平和变化趋势开展研究,总结概括影响造价的主要因素。同时就造价分析工作开展过程中存在的问题提出解决措施,为电力企业投资决策和电网技经管理提供参考。     

全生命周期成本最优理念在输变电工程造价管理中的应用

我国输变电工程造价管理模式具有组织结构“离散型条块化”、管理流程“阶段性局部优化”、计价体系“以定额为基础”的特点.这种管理模式已不能完全适应市场经济和进一步开放市场的需要,与国际通行惯例差距较大.因此,输变电工程建设管理模式创新变革,造价管理目标已由“单纯造价控制”向“全生命周期成本最优”转变.     

输变电工程造价控制指标动态调整模型研究

"输变电工程造价控制线"是国家电网公司发布的工程建设指导价,工程技术经济基础指标发布的是建设输变电工程的平均成本价。本次研究综合考虑了二者主要差异,分析因时间变化引起主要波动费用及其影响因素,研究量化各影响因素的影响程度,建立"控制线"与"成本价"之间数学逻辑关系,提出直观、科学的算法,为公司发布"造价控制线"提出专业建议,为公司"输变电工程造价控制线"的精准、科学管理奠定基础。     

输变电工程造价分析工作研究

输变电工程造价的控制与管理是电网建设的重要内容。本文通过对国网四川省电力公司(以下简称公司)2015年造价分析工作进行总结分析,对2010~2014年的输变电工程造价水平和变化趋势开展研究,总结概括影响造价的主要因素。同时就造价分析工作开展过程中存在的问题提出解决措施,为电力企业投资决策和电网技经管理提供参考。     

输变电工程全过程造价管理

<正>输变电工程建设项目从筹建到竣工投产,参与的部门众多,经过的环节复杂,任何一个环节把控不到位,工程造价管理将面临失控的风险。为加强输变电工程建设的全过程造价管理,实现工程造价管理的可控、能控,应从可研、初设、施设、招投标、施工、竣工验收六个阶段挖掘不利于造价管理的因素,探索应对措施。建设工程的全过程是指建设工程的可研、设计、招投标、施工、竣工验收等各个阶段。工程造价管理包括工程造     

Divergent patterns of engagement in Internet standardization: Japan,Korea and China

This article analyzes the engagement of Japanese, Korean and Chinese participants in the development of Internet standards at IETF on the basis of four quantitative metrics: attendance, patenting, authorship and leadership. The results are strikingly divergent. Japanese involvement in Internet standardization began early and Japan was, for many years, second only to the U.S. in terms of IETF participation. Though Japanese participation has declined since the early 2000s, Japan remains a major contributor to IETF standardization. Korean involvement in IETF has always been significant, but below the levels of Japan and major European countries. Korean participation in IETF has also declined over the past decade, and has been dominated by one firm, Samsung. Though meaningful Chinese involvement in IETF did not begin until the mid-2000s, it has rapidly expanded in recent years. Today, China is a major player in numerous areas of Internet standardization in terms of three metrics (participation, patenting and leadership), and is rapidly gaining in terms of document authorship as well. Most of China׳s recent IETF involvement can be attributed to Huawei, though other Chinese firms have recently begun to increase their participation in the organization. Thus, contrary to some views that China׳s engagement with standardization is primarily one of indigenous innovation and “catching up”, China׳s experience with IETF demonstrates deliberate and effective engagement with a major Western standards-development organization on its own terms.     

增强Linux系统安全性的措施

L inux系统的安全取决于系统管理员如何来管理它。本文探讨了一系列可以增强安全性的技巧与策略 ,包括 :系统安装原则、BIOS安全、口令安全策略、设计帐户自动注销功能、文件系统和日志安全策略、使用 SSH及 TCP-WRAPPERS,隐藏系统信息、删除所有特殊帐户、关闭控制台程序、限制系统中的 SUID/ SGID程序等。本文最后向 L inux系统管理员提出了一些安全管理方面的建议     

Whose Image is it Anyway?: Some Considerations of the Curricular Importance of Subject Image in Secondary School Design and Technology Education

This paper explores the idea that a sense of school subject image is a necessary feature of curriculum management and a potent force for change. The discussion centres on the view that all school subjects have an image and that if those intimately involved with the subject do not control the image then someone else does! In such circumstances the image is the product of past encounters and old euphemisms and is unlikely to hold the changed realities.The UK developments in Design and Technology education (the term Design and Technology is used to denote the school subject defined under this heading by the UK National Curriculum, 1995) have created something of an image problem which has interesting international parallels. Some of these problems are due to clearly discernible internal tensions and an ambiguous relationship with other subject areas.Through greater attention to subject image internal controversies might be acknowledged and resolved, relationships with other subject areas can be more meaningfully understood and practitioners can be helped to make sense of curriculum change.     

快速成形技术的应用及热点分析

基于快速成形技术的原理,展示了快速成形技术在快速模具制造、金属零件直接成形、反求工程等领域的广泛应用,总结了快速成形制造技术研究的热点,即研发新材料和新设备、提高成形精度、建立RPM的反求工程系统、建立成形技术的统一标准和扩大成形技术的应用领域。     

CIS与现代企业管理美学

概括性介绍了 ＣＩＳ（Ｃｏｒｐｏｒａｔｅ Ｉｄｅｎｔｉｔｙ Ｓｙｓｔｅｍ）的三大基本组成，并阐述了它与现代企业管理密不可分的相互联系及所处的举足轻重的地位，指出导入ＣＩＳ是现代企业谋求发展的重要手段。     

HSE走进中国石油

企业管理水平的好坏直接影响着企业的经济效益,运用HSE管理能提高企业管理水平,HSE管理模式将健康,安全,环境三者视为一个有机的整体。HSE管理认为人的安全是第一位的,人是创造财富的原动力,是企业的最大财产,HSE管理体系强调的是“蝴蝶效应”。     

Diffusion and usage of public e-services in Europe: An assessment of country level indicators and drivers

We analyze the state of the art of indicators on e-government, e-health, e-procurement and e-participation. We survey the main methodological properties of these indicators, and highlight their heuristic potential. Further, we address empirically the issue of the explanation of the availability scores, i.e. how the supply of the various e-services in each country is affected by political, institutional and socio-economic differences, and is followed by actual usage. The econometric analysis uncovers the importance of broadband penetration and higher education as drivers for most of the types of e-services and users (citizens and businesses). Moreover, a corruption-free and agile public sector proves to be an important pre-condition for more effective supply and usage. Despite data limitations and the complexity of the underlying diffusion phenomena, our study is the first truly longitudinal contribution aimed at disentangling the common drivers of such an important phenomenon – the e-services availability and usage across European countries. As such, this work appears useful to inform the policy debate and practice, in a phase characterized by a prospective reorientation of the public e-services provision and policy agenda.     

一种高精度的频率标准比对系统

频率标准源可以提供精确的标准频率,在测定频率标准源的各项性能指标时,要求测试系统必须具有很高的比对精度。所设计的频率标准比对系统采取多级倍频 混频方式使频率偏差逐级扩大后再测量,从而避免了直接进行高次倍频的困难,提高了测量精度,可以对高精度的频率标准的准确度、长短期频率稳定度进行快速测量,是一种高精度时畴参数测量系统。     

Material power and normative conflict in global and local agrifood governance: The lessons of ‘Golden Rice’ in India

This special section aims to investigate the interaction of global and local forces in shaping agrifood governance. It starts from the recognition that a multitude of actors and norms shape today’s agrifood system. The resulting opaqueness of the systems makes it extremely difficult to understand and explain processes and outcomes of agrifood governance. Given the sustainability challenges facing the agrifood system, improvements in our understanding of what the interaction of global and local actors and norms means on the ground are urgently needed, however. The section, therefore, analyses agrifood governance in India across a selected group of cases. It does so by employing a systematic framework emphasizing the material and ideational dimensions of power and their interaction. The section has chosen India as the setting in which to analyze this interaction due to the crucial role the food demand and supply of this rising power plays in today’s agrifood system. This article provides the special sections’ analytical framework, which uses the interplay of material and ideational dimensions of power as a focal lens. In addition, the article applies this framework to an empirical study of the political conflict around GMO foods in India, specifically the case of ‘Golden Rice’.     

蒸汽热量计量应用的探析

研究了石油化工企业的燕汽计量情况,着重对蒸汽热量计量的合理性进行了分析,阐述了蒸汽热量计量的依据及计算方法,以及蒸气热量计量对节能降耗的重要意义.