60KV、变电所6KV配出双电源并列运行对继电保护影响的研究

煤矿60KY变电所6KV侧双回路供电系统中，为确保供电的可靠性，不允许两回路线路并列运行。若两回路并列运行，当线路中出现单相接地故障时会给选线工作造成困难，尤其发生两相或三相短路时对继电保护的影响更大，会造成越级跳闸事故，使变电所全面停电。     

信息能:信息世界运动变化的真正动力——兼评《物信论——多层次物质信息系统及其哲学探索》

以算法为核心的程序(即“信息引擎”)是引领物质生存和发展的发动机;而由“物质能”所负载的“信息能”,是信息世界运动变化的真正动力。这样,就像宇宙万物是物质和信息的对立统一,“能量”则是物质能和信息能的对立统一。在物理学中,有质能转换,在信息学中有信息和信息能之间的相互转换。对于人类社会而言,信息就是知识,信息能就是智能,在知识和智能之间存在某种转换关系。如果说物质能是物理学的一个中心概念的话,那么信息能应当是信息科学的中心概念。在一定意义上说,信息科学主要是研究人类智能的本质和知识创新的机理,信息技术主要是开发一种人工智能技术去替代人的某些脑力劳动。     

《新员工培训专题》课件的设计与开发

企业通过网络远程培训系统对新员工进行培训是信息时代的迫切需求。本文结合具体的多媒体网络课件—《新员工培训专题》的研制,从课件的内容设计、导航与界面设计、媒体设计等方面分析了此课件的特点,探讨了多媒体网络课件的设计与开发。     

Edulabs AGIRE project – evaluation of ICT integration in teaching strategies

The AGIRE project, under the Edulab concept, aims to promote the adoption of innovative teaching practices. This paper reports the support strategies used to evaluate the teacher practices at the end of a teacher training course (TTC) and analyse its impact on teacher technology integration, using a design-based methodology. Teachers’ initial perception was gathered using an online questionnaire comprising ICT personal and professional competencies. The questionnaire results and the classroom observations showed that the majority of teachers were at the level of ICT adoption, before attending the TTC, reaching the adaptation level of integration of ICT, after the TTC. A variety of teaching strategies (flipped classroom, collaborative work, …) and technologies (interactive white boards, tablets, videos, …) were explored. The results sustain the thesis that, with proper support, ICT can be integrated in educational contexts in an innovative way and contribute to the development of teachers’ digital literacy.     

Mathematics in Physics Education: Scanning Historical Evolution of the Differential to Find a More Appropriate Model for Teaching Differential Calculus in Physics

Despite its frequent use, there is little understanding of the concept of differential among upper high school and undergraduate students of physics. As a first step to identify the origin of this situation and to revert it, we have done a historic and epistemological study aimed at clarifying the role and the meaning of the differential in physics and at improving curricular and teaching models in the sense of Gilbert et al. (Gilbert J.K., Boulter C., & Rutherford, M.: 1998a, International Journal of Science Education 20(1), 83–97, Gilbert J.K., Boulter C., & Rutherford, M.: 1998b, International Journal of Science Education 20(2), 187–203). We describe the contributions of Leibniz and Cauchy and stress their shortcomings, which are overcome by the alternative definition proposed by the French mathematician Fréchet, dating from early 20th century. As a result of this study, we answer to some fundamental questions related to a proper understanding of the differential in physics education (for 17–19 years old students).     

语文课程的文化变迁与价值重构

在语文课程的发展历史上,"应用"说一直占据着主导地位.它抹杀了语文课程丰厚的文化蕴涵和独特的人文价值,导致语文教育的平庸化、世俗化走向.其实,语文不仅是"应用"(应生活之用)之学,更是"应需"(应生命存在与表现之需)之学,"成人"、"立人"才是语文教育的本质与追求.同时,语文课程还要承担社会责任,以文化主体身份积极参与并推进社会文化建设.     

Heat transfer characteristics of air cross-flow for in-line arrangement of spirally corrugated tube and smooth tube bundles

An experimental study on heat transfer and resistance coefficients of linearly arranged smooth and spirally corrugated tube bundles in cross-flow was performed. The heat transfer and resistance coefficients are presented in this paper with transverse and longitudinal tube-pitch and tube geometries taken into account. The experiment's results can provide technical guidelines for application to horizontal air preheater with arranged in-line spirally corrugated tube bundles, especially to the air preheater for CFBCBs (Circulating Fluidized Bed Combustion Boilers).     

发展与稳定：考试政策行政功能分析

考试作为一种测度、甄别、评价人的素质水平的社会活动,具有社会稳定功能。考试的社会稳定功能可能是积极的、有利于社会发展的；也可能不是积极的,不利于社会发展的。考试政策的社会稳定功能必须以社会发展功能为前提,应坚持为了发展的稳定,不能为了稳定而牺牲发展,这样才能实现考试政策行政功能的合理张力。     

Factors affecting probabilistic judgements in children and adolescents

Six hundred and eighteen pupils, enrolled in elementary and junior-high-school classes (Pisa, Italy) were asked to solve a number of probability problems. The main aim of the investigation has been to obtain a better understanding of the origins and nature of some probabilistic intuitive obstacles. A linguistic factor has been identified: It appears that for many children, the concept of certain events is more difficult to comprehend than that of possible events. It has been found that even adolescents have difficulties in detaching the mathematical structure from the practical embodiment of the stochastic situation. In problems where numbers intervene, the magnitude of the numbers considered has an effect on their probability: bigger numbers are more likely to be obtained than smaller ones. Many children seem to be unable to solve probability questions, because of their inability to consider the rational structure of a hazard situation: chance is, by itself, an equalizing factor of probabilities. Positive intuitive capacities have also been identified: some problems referring to compound events are better solved when addressed in a general form than when addressed in a particular way.     

基于组织变革的中小学校长培训及其关系处理研究

校长培训组织应该依据社会与教育发展所引起的培训环境的变化，及时调整和完善自身结构和功能，以满足校长培训发展的新需要，这是一种新的搞好“十一五”中小学校长培训工作的组织变革观。文章认为。在实现培训组织变革中，要慎重处理好正规与非正规、现代培训手段与传统培训方式等六大关系。