在ILAS电子阅览室管理中外挂软件的设想

ILAS系统中的电子阅览室管理(ILAS-ER)功能过于简单,对电子阅览室的管理存在明显的不足,而采用其它软件代替管理则至少存在读者数据的冗余,通过以ILAS电子阅览室备份文件electbakup.txt为接口外挂软件的方法可以改善电子阅览室的管理功能。     

《电机与拖动》课实验教学改革的探讨

实验教学是培养21世纪综合性、应用性复合人才的有效途径。为了适应高等教育发展和社会的需求,我们选择了对《电机与拖动》的实验教学进行了尝试性的改革,提出了实验教学的“四个目标”,以突出培养学生创新意识和创造能力为重点,从教学内容、方式、管理制度上进行了实验教学改革的实践和探讨。     

管理科学面临复杂性科学的挑战

复杂性科学作为21世纪的科学令世人瞩目,受各界垂青。管理科学面临着复杂性科学的挑战。文章首先介绍复杂性科学的基本思想,其次论述复杂性科学的研究思路与方法,然后分析电力系统管理的复杂性和管理科学面临着复杂性科学的挑战。     

关于电阻测量几种方法的讨论

本文对电阻的测量方法及误差修正进行了比较和分析，并给出合理、直观、简捷的实验测试手段。     

长直螺线管中的交变磁场

长直螺线管中变化的磁场是产生涡旋电场的源，涡旋电场也将反作用于磁场．在一般情况下，磁场的分布不是均匀的。文中指出了一般教材中假定磁场均匀分布的条件，推导出了一般情况下的磁场分布曲线，并进一步讨论了交变电磁场用频率及导休时磁场分布的影响。     

Managing Potential Health Risks from Electric Powerlines: A Decision Analysis Caught in Controversy

Over the past 20 years, several epidemiological studies have found an association between exposure to electromagnetic fields (EMFs) and health effects, including childhood leukemia and adult brain cancer. However, experts strongly disagree about whether this association is causal and, if so, how strong it is. In this article, we examine several alternatives to reduce EMFs from sources of the California power grid, including undergrounding distribution and transmission lines and reconfiguring or rephasing lines. The alternatives were evaluated in terms of the potential health risk reduction, cost, impacts on service reliability, property values, and many other consequences. Because of the uncertainty about an EMF-health link, the main effort was to determine the sensitivity of the decisions to the probability and seriousness of an EMF hazard. User-friendly computer models were developed to allow stakeholders to change the model assumptions and parameters to analyze the impacts of their own assumptions and estimates on the decision. The analysis clearly demonstrated that only four of the many concerns raised by the stakeholders could make a difference in the decision: health risks, costs, service reliability, and property values. Whether undergrounding, moderate alternatives for EMF reduction, or no change was the best decision depended on a few key factors, including the probability that EMF exposure is a hazard, the severity of this hazard, how the EMF reduction measures are financed, and the impacts on property values. While the analysis did not resolve the EMF issues, it showed that even in the most controversial settings, a little analysis goes a long way to clarifying the issues and to focus the debate.     

论江泽民对“人的全面发展思想”的继承和发展

人的全面发展思想是马克思主义的重要内容。本文就江泽民同志关于“人的全面发展是社会主义的本质要求”的论断、现阶段人的全面发展目标以及实现的途径和手段等方面作一些探讨     

略论西方国家电力监管立法及其借鉴意义

在系统介绍西方国家电力监管立法的基础上,就西方国家在电力监管立法的基本意义、价值目标和基本模式、内容等进行了全面分析,从中总结出了电力监管立法要注意制定监管规则、保持监管之独立性,以及支持竞争保持中立等对我国具有重要借鉴意义的若干经验。     

偏振光的双光束与多光束干涉

本文通过时平面偏振光的双光束与多先束干涉现象的讨论，使对偏振光的干涉有进一步的认识，并计算出偏振光照明条件下，光栅的光强分布和分辨本领。     

相对论的建立与高层理论观念的能动作用

本文首先简述了相对论的理论构建过程，然后扼要地说明了在其理论构建过程中所涉及利的高层理论观念，最后探讨了高层理论观念在现代物理研究中的能动作用．