企业资源计划系统（ERP）为电力企业带来价值提升

ERP是国际一流企业普遍实施的一种企业信息建设模式,它不仅是一种信息系统,而且还包含着先进的企业管理思想．理念和手段。在我国电力企业走向国际化、实施“以信息化带动电力工业和电力企业的跨越式发展”战略、推进技术创新引领电力企业“管理创新”的进程中,ERP建设已成为企业信息化的主要任务。着重分析ERP给电力企业带来的价值,并从实践方面分析ERP系统在浙江电力企业实施的意义和成果,展示了ERP在电力企业的应用前景。     

水电企业ERP系统功能结构设计

分析了水电企业资源计划（ERP）研发应用的现状和可行性，阐述了ERP理论的技术特点，给出了ERP体系的设计思想。结合三峡电站电力生产管理系统（ePMS）的实践，设计了一种适合水电企业管理的ERP的功能结构体系，并对实施ERP系统的关键技术进行了研究。     

火电施工企业ERP模型的实施

探讨了在大型火电施工企业如何实施ERP(EnterpriseResourcePlanning,企业资源计划)的问题。通过对火电施工企业的组织流程和组织结构的分析 ,并运用BPR(BusinessProcessReengineering,业务流程再造)和组织扁平化的方法 ,初步重组了组织结构 ,改善了组织流程的效率 ,并在此基础上 ,建构了ERP的竞争链模型     

县供电企业ERP项目培训探析

ERP项目是国际一流企业最佳管理经验的结晶,蕴涵了先进的管理理念。国家电网公司提出了电网的集团化运作,县供电企业实施ERP系统是确保县供电企业的管理理念、管理模式和管理水平尽快达到电网公司集团化运作要求和标准,真正融入集团化统一运作的必然要求。培训是保证项目成功实施的关键性因素,必须贯穿于ERP项目实施的全过程。结合县公司ERP项目建设的实际情况,探讨了ERP项目实施中培训的意义,阐述了如何在实施过程中建立有效的内部培训体系。     

ERP在中国企业中实施现状与对策探讨

实施ERP（企业资源计划）是中国企业提高企业竞争力的重要途径。文章分析了ERP系统在中国企业中实施失败的主要原因,提出了成功实施ERP系统相应的对策。为正准备和将来需要实施ERP系统的国内企业提供了参考策略。     

基于SAP项目的物料分类及特性的技术实现

在企业实施EnP（EnterpriseResourceNan企业资源计划系统;以下简称ERP）过程中,数据工作贯穿于整个实施过程。ERP成功实施和应用的关键就是数据管理。以中国广东核电集团的SAP（Systems,Application,andProductsinDataprocessing数据处理的系统、应用和产品）实施项目中的物料管理模块（MM）的实施为例,阐述了项目实施中的物料主数据、物料分类、分类属性的实际应用和解决方案以及相关的活动和技术实现。通过合理地组织和管理各种数据,对提高系统性能和实现企业的业务发展目标具有重要的意义。     

ERP与精细化管理——ERP管理思想及其发展趋势

分析企业资源计划（EnterpriseResourcePlanning,ERP）环境下的管理思想模式,结合中国企业管理现状,指出7ERP先进的管理理念,构建适合企业自身的特有的管理模式,对ERP的未来发展做了分析和展望。ERP转变了管理理念,拓宽了管理范围,具有先进性和科学性。     

ERP项目实施过程中的培训管理

ERP系统带来的不仅仅是一套软件,更重要的是它蕴含着现代化的企业管理理念。ERP项目的实施本身就是一场管理变革,而成功实施ERP将有助于提升企业的核心竞争力,将促进企业管理方式的转变和优化。培训贯穿于ERP项目实施的全过程,是保证项目成功实施的关键性因素。结合辽宁省电力有限公司ERP项目建设的实际情况,探讨了ERP项目实施中培训的意义,阐述了如何在实施过程中建立有效的培训体系。     

业务流程再造(BPR)的理论研究与应用

介绍业务流程再造（BPR）的研究背景、概念、内涵，分析业务流程再造实施过程、研究意义，以及探索业务流程再造（BPR）在认证检测技术服务业的应用实践。     

PDM在企业的实施

本文简要介绍了产品数据管理（PDM）的概念、功能及其与ERP、MRPII、MIS等之间的关系,并采用专家理论与作者工作实践相结合的原则,阐述了PDM系统在企业中的实施与应用,同时站在应用者的角度提出了实施的具体方法和应注意的问题。     

电力营销管理信息化系统的流程再造

分析了江苏省电力公司实施营销业务流程再造取得的初步成效,在此基础上阐述了深化流程再造在电力营销管理信息系统中应用的可行性和必要性,并对改造方案,实施步骤以及今后模式提出建议设想。     

Tan δ of ethylene-propylene rubber in cryogenic temperature region–effects of additives and sample thickness

The authors have been developing extruded polymer insulated superconducting power cables. Dielectric loss in electrical insulation cannot be ignored in superconducting cables since conductor loss in the cables is minimal. Studies so far show that ethylene-propylene rubber (EPR) is suitable as an electrical insulating material in the extruded polymer insulated superconducting cable design because it demonstrates excellent mechanical and relatively good electrical qualities at a cryogenic temperature. Widely used EPR includes some kinds of additives; however, their effect on tan δ of EPR at cryogenic temperature remains unknown. The effect of additives such as crosslinking agent and fillers on tan δ of EPR was examined at temperatures of between 4.2 K and 300 K. Thickness dependence of tan δ was also measured using EPR films of different thickness and an extruded EPR insulated cable sample. The results show that additives increase tan δ of relatively thin films of EPR even in the cryogenic temperature region; however, they do not have an intolerable dielectric loss in comparison with conductor loss and heat inflow of the superconducting cable. The remedy to tan δ increase due to the polymer contraction relative to shielding wires has been established.     

视觉显著性特征约束下的骨架生长算法

骨架特征在图像处理和计算机图形学等领域有着广泛的应用,而常规的骨架提取算法易受到噪声和物体自身变化的影响,使得提取的骨架难以进行后续的应用.本文提出联合离散曲线演化和弯曲度比率这两种视觉显著性特征约束下的骨架生长算法.在骨架生长过程中通过对判为结点的骨架点的邻域骨架点进行进一步的弯曲度比率约束,有效抑制了离散曲线演化约束骨架提取算法对于弯曲度较大的部位所产生的无法避免的冗余枝.通过调节保留的离散曲线演化点数以及弯曲度比率阈值,可获得多尺度的骨架.实验证明,在较大非刚体形变和轮廓噪声等干扰下,本文提出的算法仍能有效的抑制冗余骨架枝的产生,获得的骨架能够较好的表示图形中视觉重要部分.     

The behavior of water in XLPE and EPR cables and its influence onthe electric characteristics of insulation

This paper presents the latest results of continuous investigations of cable insulations degradation of crosslinked polyethylene (XPLE) and ethylene-propylene with rubber based formulation (EPR) when subjected to electric stress and heating in the presence of water or water vapour. The paper deals with water absorption and diffusion in two kinds of crosslinked polyethylene insulation-dry-cured and steam-cured, and steam-cured EPR insulation. The aim of this investigation is to present the results of the influence of changing of water or water vapour pressure in the conductors of XLPE and EPR cables in different service conditions on the electric characteristics of XLPE and EPR insulations-breakdown voltage (AC BDV), dissipation factor (tan δ) and rata of partial discharge (RPD). In this paper, RPD is defined as, the maximum electrical field when the beginning partial discharge in the cable insulation and partial discharge were measured in accordance with the IEC standard. This paper also shows the relation between AC BDV and water content, and AC BDV and tan δ in XLPE and EPR insulations. In this testing the tap water was put in the cable conductors and the ends were properly closed by terminal boxes. The results indicate that the combined effects of water or water vapour, pressure, moisture, electric field and temperature will greatly accelerate deterioration of XLPE and EPR insulations     

EPR与CPR1000核电厂1级部件制造与安装水压试验差异研究

1级部件制造与安装阶段的水压试验是核电机组后续调试与安全运行的重要前提。对比分析了不同版本法国《压水堆核岛机械设备设计和建造规则》（RCC-M）关于水压试验要求的差异,并结合CPR1000和EPR 2种机组的系统和结构特点,对1级部件在制造、安装阶段水压试验的试验压力和试验边界等差异进行了论述,并探讨了EPR机组1级部件在制造与安装阶段水压试验的压力选取方法,所得结果可为EPR机组制造与安装阶段的水压试验工作提供重要参考。     

ac treeing of ethylene-propylene rubber in cryogenic temperature region

The authors have proved that ethylene-propylene rubber (EPR) is suitable for the solid electrical insulating material of superconducting and cryoresistive cables due to its excellent mechanical and good electrical properties. It is imperative to study the treeing resistivity of EPR in view of long-term reliability as a cable insulator. The objectives of this paper are to establish an ac treeing test method of opaque EPR samples with fillers and to examine the treeing resistivity of EPR at both liquid-nitrogen and room temperatures and the effect of fillers on treeing resistivity. It was found that EPR has enough resistance to ac treeing at liquid-nitrogen temperature and that fillers improve ac treeing resistivity slightly. High reliability of EPR insulation is expected during long-term operation at cryogenic temperature.     

华东电网公司EIS财务管理重组浅析

介绍了在信息技术飞速发展,内外部环境不断变化的形势下,华东电网有限公司在财务管理方面,结合企业级信息系统EIS的建设,转变管理理念,通过一些流程重组(BPR),取得提升财务管理水平的实效。     

Young investigator award presentation at the 13th annual meeting of the esmrmb,september 1996, prague

The detection of free radicalsin vivo is very important for the study of many physiologic and pathologic conditions. Free radicals have been implicated in a number of diseases such as ischemia, inflammation, kidney damage, and cancer. Proton-electron double-resonance imaging (PEDRI) allows the indirect detection of free radicals via the Overhauser effect. Nitroxide free radicals used forin vivo PEDRI studies present spectra with two or three lines, but most PEDRI experiments performed to date have used only single-line electron paramagnetic resonance (EPR) irradiation. There is theoretical evidence that simultaneous irradiation of multiple EPR transitions could increase the maximum achievable PEDRI enhancement. From the experimental point of view, this requires the combined use of a suitable multiple-frequency EPR source and a multiple-tuned EPR resonator. A novel radiofrequency (RF) triple-tuned loop-gap resonator for use in PEDRI has recently been developed, and dynamic nuclear polarization (DNP) data were reported. In the present study we describe a new PEDRI apparatus, equipped with a triple-tuned resonator, that is suitable for simultaneous double-or triple-EPR irradiation of nitroxide free radicals. In particular, the details of the EPR hardware used to generate the two or three EPR frequencies are given, and PEDRI images obtained with simultaneous multiple EPR irradiation are shown. Moreover, DNP experimental results showing the increase of the enhancement as a function of the EPR power for single and simultaneous double EPR irradiation are presented. The main goal of this apparatus is to improve the sensitivity and/or to reduce EPR irradiation power in a PEDRI experiment. This is likely to be particularly important in future biologic applications of PEDRI where the applied power must be optimized to reduce sample heating.On leave from Instituto Professionale Statale Indostra Artigianato, Pianeta Signorini, 67100-L'Aquila, Italy     

乙丙橡胶在我国中高压电缆中的应用

简介了乙丙橡胶在国内外中高压电缆中应用的情况,论述了中高压乙丙橡胶电缆料的设计和生产的关键,以及国内自主开发的乙丙橡胶电缆料在中压橡胶绝缘电缆上的应用。     

Thermal and mechanical properties of EPR and XLPE cable compounds

This paper shows that the mechanical and thermal properties of EPR cable dielectrics are very stable with temperature. Commercially available EPR and TRXLPE cable dielectrics typically have about the same thermal conductivity, although the thermal conductivity of TRXLPE above the melting point of the crystallites drops below that of the EPR dielectrics. The mechanical properties of EPR cable dielectrics are much more stable with temperature than those of the TRXLPE, as EPR polymer is essentially amorphous so that EPR cable dielectrics do not suffer from the very large thermal expansion of TRXLPE as its crystallites melt.