皖北煤电集团有限公司信息化建设的经济效益评价

通过构建经济效益模型,用定量分析的方法评估了皖北煤电集团有限责任公司（以下简称皖北煤电）实施信息化建设后的经济效益。     

新形势下电力企业档案安全工作的探讨

档案安全是电力企业档案工作者的首要职责,档案工作者要以高度负责的态度,筑牢五道防线,确保档案不丢失、不损坏、不泄密,实现永久保存和利用。     

Combination of forecasts in electricity demand prediction

Accurate demand prediction is of great importance in the electricity supply industry. Electricity cannot be stored, and generating plant must be scheduled well in advance to meet future demand. Up to now, where online information about external conditions is unavailable, time series methods on the historical demand series have been used for short-term demand prediction. These have drawbacks, both in their sensitivity to changing weather conditions and in their poor modelling of the daily/weekly business cycles. To overcome these problems a framework has been constructed whereby forecasts from different prediction methods and different forecasting origins can be selected and combined, solely on the basis of recent forecasting performance, with no a priori assumptions of demand behaviour. This added flexibility in univariate forecasting provides a significant improvement in prediction accuracy.     

交流弧焊机空载节电器的优化设计

本文介绍了新研制的JBX-861型节电器的工作原理和设计特点,从理论和实验数据两方面论证了采用控制变压器降低弧焊变压器初级电压的最佳节电效果。     

Effect of Market Power in Electricity Markets

The main objective of this paper is to show an overview analysis of market power issues. Market power reflects the scarcity of power supply. It is the ability of a particular seller or group of sellers to maintain prices profitably above competitive levels for a significant period of time. Because the electric power system has its own characteristics that are different to other economic systems, both physical factors and economic factors of power system are key elements on this definition. We study some cases here, including different line limit levels, load levels and bid strategy through a market model based on OPF (optimal power flow) with a decommitment algorithm.     

静电保鲜的试验及装置

本文介绍了用静电方法保藏食品的基本机理和一些研究结果     

基于最优组合预测法的电网用电量预测

西藏林芝电网电源单一,冬、春季拉闸限电局面日趋严重,为科学预测电网用电量,提出基于一元线性回归模型与灰色模型建立最优加权组合预测模型,应用最优模型对林芝电网2000～2007年电网用电量的历史数据进行拟合,对2008～2015年的用电量进行预测,通过实例分析表明最优组合预测结果更为精确,并预测出2015年电网用电量将达到1.68亿kW.h。     

晚清科学译著《电学》初探

《电学》是我国近代第一部较系统、全面地介绍西方19世纪电磁学的中文译著,在中国近代物理学史和科学传播史上占有重要地位．对《电学》的英文底本和中译本进行了比较研究,首先介绍了《电学》译书的时代背景及原著者、译者的情况;梳理了中英文版本的《电学》章节和内容,并进行了对比分析,对书中涉及的电磁学知识和实用技术进行归类整理并择要介绍,对电磁学专业名词的翻译方法进行归纳和分析,对本书的翻译水平也给予了评价;最后,将《电学》与其前后出版的同类翻译著作做了比较,指出《电学》一书在电磁学专业翻译方面的开创性以及对其后诸多同类译著的示范和借鉴作用．