变压器套管检修与维护

通过对变压器套管发生故障的原因的分析，制定出减少套管故障的相应措施，从而获得变压器套管最佳的检修维护方式和处理此类故障的正确方法，对电力系统的稳定运行有较大的实用价值。     

Study on the failure mechanism of Ag-Ce contacts in DC level

Nominal contact resistance, minimum erosion and material transfer are required with low cost materials working in a wide currents range for DC relays. Ag-Ni contact materials have low contact resistance, but the erosion and material transfer are large at high current level. Ag-SnO2 contact materials have good anti-welding properties and resistance to arc erosion, but they have large contact resistance during working and are easily block SnO2 from flocking together on the surface at low current level. In this paper, the failure mechanisms of Ag-Ce contact material were studied. The surface morphologies of the contacts after electrical endurance test for Ag-Ce contact material were compared with that of Ag-Ni and Ag-SnO2 contact materials. The effect of Ce on the surface morphologies of the contacts after electrical endurance test was analyzed.     

略论我国民事时效制度的完善

本对现存时效制度的缺陷作了一些分析，并提出了完善时效制度的粗浅看法，以期消除人们对时效制度的误解，从而更好地保护民事主体的民事权利。     

多元函数的极值及其应用

在多元函数极值有关理论的基础上，讨论多元函数求解极值的理论方法，并通过典型例题阐明多元函数极值在实践中的应用。     

斜晖脉脉水悠悠——小李杜关系考辨

在晚唐诗人中，杜牧与李商隐无疑是翘楚人物，通常被并称为“小李杜”。他们两人是否也如李杜一般有着深厚的堪称文坛佳话的友谊，还是一个尚待研究的问题。前人偶有提及，几乎是众口一词，都从李商隐的赠诗得出基本相同的结论。以其中比较有代表性的刘学锴先生在《李商隐传论》里的观点为参照，结合杜牧的生平及大中三年的时代背景，可以见出横亘在小李杜之间的一些心理隔膜。     

Testing results analysis of contact materials＇ electrical contact performance

Because of the different ways in which contact materials work, the basic requirements for silver metal oxide contact materials are different. They are anti-welded and anti-erosion when closed, anti-erosion when broken, and arc easily moved and have smaller contact resistance. In this paper, La2O3 is used as a stable oxide in contact material to replace CdO. A new type of Ag/SnO2-La2O3-Bi2O3 contact material is first obtained through using powder metallurgical method. Then electrical contact material parameter tester is used to test the electrical contact performance of the contact material. Through experiments, the arcing voltage and current curves, arcing energy curves, fusion power curves while broken and contact resistance while closed were obtained. Analysis of the results showed that the addition of La2O3 makes the contact material have the following advantages： smaller electrical wear, smaller arc energy, smaller contact resistance and arc is more easily extinguished.     

Self-regulatory climate: A positive attribute of public schools

This study contributes to the development of a positive framework for effective public schools in 2 ways. First, it advances the construct self-regulatory climate as consisting of 3 generative school norms—collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis. The authors argue these norms signal a school climate supportive of student psychological needs. Second, they test the predictive validity of self-regulatory climate by empirically examining its relationship with school performance. Results of structural equation modeling support the theory that collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis combine to form a self-regulatory climate that has positive consequences for urban school performance.     

四元数空间形式中混合型全拟脐QR-子流形

考查四元数空间形式中混合型全拟脐QR-子流形并研究了四元数空间形式中具有某种条件下的混合型伪脐QR-子流形.进而研究了四元数K(a)ehler流形的QR-子流形,给出了一些有趣的结果.     

体操教学中运用迁移法效果的研究

体操是一项动作结构复杂多样化而非同期性的运动项目,在体操教学和训练中,运动技能的迁移现象普遍存在。通过分析体操动作技术的内在联系,掌握技能迁移的原理和规律,合理运用一系列手段来促进技能间的积极性迁移,防止或减少消极性迁移的影响,提高体操教学效果。     

社会交往的精神生产力意义

长期以来,学术界往往把人与人之间的社会交往仅仅归之于生产关系,而很少有人重视其生产力功能。实际上,交往作为一种社会实践活动不论从物质层面还是从精神层面上说都具有生产力功能。文章运用马克思主义的社会交往理论,主要从精神交往这个层面上就社会交往在语言传播、文明成果延续共享、促进人类社会发展等方面论述了社会交往的精神生产力功能,并从若干方面加以具体展开;进而突出了现代社会交往所具有的空前重要的生产力意义。