Frontier estimation with local polynomials and high power-transformed data

We present a new method for estimating the frontier of a sample. The estimator is based on a local polynomial regression on the power-transformed data. We assume that the exponent of the transformation goes to infinity while the bandwidth goes to zero. We give conditions on these two parameters for obtaining almost complete convergence. The asymptotic conditional bias and variance of the estimator are provided and its good performance is illustrated for some finite sample situations.     

高压限流熔断器组合保护装置应用分析——以温州珊溪水利枢纽珊溪电厂为例

以温州珊溪水利枢纽珊溪电厂为例,介绍了高压限流熔断器组合保护装置在电厂运行中存在的问题,对其改造方案进行了分析,阐述了系统采用FURV的优越性以及FURV的参数设计与结构。     

Evolution of groups with a hierarchical structure

The universal occurrence of a hierarchical structure and its dynamic behavior in various types of group, living or abstract, are discussed. Here the word “group” refers not only to tangible aggregation but also to invisible aggregation of social psychological and of geopolitical meaning. The evolution of these groups is simulated using a model of agents distributed on the lattices of cellular grids. It is assumed that agents, fearing isolation, interact asymmetrically with each other with regard to exchange of “power”. As an indicator of hierarchy, the Gini coefficient is introduced. Example calculations are made for the aggregation, fusion and fission of animal groups, and for the appearance of a powerful empire and the rise and fall of supremacy. It is shown that such abstract objects evolve with time in accordance with the universal rules of groups common to birds and fish.     

论中小学管理权力的下放

管理权力下放是中小学管理的重要趋势,包括政府权力下放、学校权力下放两种形式。政府权力下放包括学校发展规划权、人事安排、教材与课程设置权、人才培养质量监督权等权力的下放。学校权力下放,通过保障校务委员会、工会、教代会的正常运转,强化领导班子分工协作,建立健全党支部监督,实行校长选举制和任期制等方式下放权力。     

关于加快我国跨区送电发展的措施建议

结合目前国内在跨区送电发展方面存在的问题,从加强跨区省电网建设、拓宽电网建设融资渠道、改善电网建设成本管理、实现电源与电网协调发展、建立健全跨区域电力交易市场和制定合理的跨区送电分税政策等方面提出了具体的对策建议,以期对当前我国跨区送电发展起到一定的指导作用。     

Lp(Rn,udx)中极大算子Mw的强型不等式及对Riesz位势的应用

相当A     

Biased and Unbiased Two-sided Wilcoxon Tests for Equal Sample Sizes

This paper answers the long-standing question of whether the two-sided Wilcoxon rank test for equal sample sizes is unbiased against a location parameter family of distributions by giving a counterexample. It is also shown that the nonrandomized two-sided Wilcoxon test for equal sample sizes with the least positive significance level is unbiased.     

漳山发电厂反渗透水处理系统运行状况分析

针对反渗透水处理系统在运行过程中出现的故障,提出了反渗透水处理系统前置设备的设计、运行调整,及反渗透本身的运行操作方法、程序补充和完善、运行历史数据的分析等都必须适时、适情、适地地采取有效整改措施,以保证反渗透水处理系统安全、经济运行。     

约翰·亚当斯海权思想研究

约翰·亚当斯是美国早期的外交家和美国第二任总统，也是最早关注美国海权建设的政治家之一。约翰·亚当斯海权思想的形成深受美国的繁荣和安全对海洋严重依赖的现实，他的职业背景特别是他参与美国政治活动的经历，以及关于中立国自由航行的国际法和国际惯例的影响。其海权思想主要包括坚持中立权利和海上航行自由、海军对维护国家独立和海洋权益的作用以及对发展强大海权的信念。约翰·亚当斯的海权思想十分理性，极具现实主义色彩，对美国海军政策和海洋战略的发展有重要影响。     

Decision making in a fuzzy environment and its application to multicriteria power engineering problems

This paper presents results of research into the use of the Bellman–Zadeh approach to decision making in a fuzzy environment for solving multicriteria optimization problems. Its application conforms to the principle of guaranteed result and provides constructive lines in obtaining harmonious solutions on the basis of analyzing associated maxmin problems. The use of the Bellman–Zadeh approach has served as a basis for solving a problem of multicriteria allocation of resources (or their shortages) and developing a corresponding adaptive interactive decision making system (AIDMS1). AIDMS1 includes procedures for considering linguistic variables to reflect conditions that are difficult to formalize as well as procedures for constructing and correcting vectors of importance factors for goals. The use of these procedures permits one to realize an adaptive approach to processing information of a decision maker to provide successive improvment in solution quality. The results of the paper are universally applicable and are already being used to solve power engineering problems. It is illustrated by considering problems of multicriteria power and energy shortage allocation and multicriteria power system operation.