The no-slip boundary condition in fluid mechanics     

Sandeep?Prabhakara  M.?D.?DeshpandeEmail author 《Resonance》2004,9(4):50-60

A moving fluid in contact with a solid body cannot have velocity relative to the body. Even though the question whether there is slip has been satisfactorily resolved now, it was a difficult and controversial problem. In the first part of this article several basic ideas and details related to this problem are discussed. The concluding part of the article will trace the development of ideas leading to the resolution of this important question. Extreme cases where fluid does slip will also be discussed.  相似文献   

Web & Wild     

Rovy Branon PhD student in Instructional System Technology at Indiana University 《TechTrends》2002,46(1):58-58

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A Layered Approach to Critical Friendship as a Means to Support Pedagogical Innovation in Pre-service Teacher Education     

Tim Fletcher  Déirdre Ní Chróinín  Mary O’Sullivan 《Studying Teacher Education》2016,12(3):302-319

In this article we describe and interpret how two distinct layers of critical friendship were used to support a pedagogical innovation in pre-service teacher education. The innovation, Learning about Meaningful Physical Education (LAMPE), focuses on ways to teach future teachers to foster meaningful experiences for learners in physical education. Critical friendship was applied in two ways: (1) the first two authors served as critical friends to each other as they taught their respective teacher education courses using LAMPE, and (2) the third author acted as a meta-critical friend, providing support for and critique of the first two authors’ development and enactment of the innovation. Over two years, data were gathered from reflective journal entries, emails, recorded Skype calls, and teaching observations. The two layers of critical friendship held significant benefits in advancing and supporting the development of the innovation while also contributing to the professional learning of all participants. Analysis of the first year’s data showed that we entered the critical friendship without thoroughly considering what we each hoped to give and take from the relationship or acknowledging the potential problems that might unfold. In the second year, guided by suggestions from our meta-critical friend, we took a more rigorous inquiry stance as critical friends, contributing contentious feedback and pushing each other beyond our personal and pedagogical comfort zones. This led to a noticeable improvement in our professional learning about teacher education practices and advanced the development of the LAMPE innovation.  相似文献   

如何利用网络做好大学生思想政治工作     

肖若雷 《怀化学院学报》2002,21(4):100-102

新时期的高校思想政治工作者应高度重视“网络化”社会对当代大学生的影响 ,认真研究网络 ,积极探索做好大学生网络思想政治工作的方法 ,构建新的工作模式 ,以提高思想政治工作的针对性和有效性  相似文献   

From natural numbers to numbers and curves in nature - II     

A.?K.?MallikEmail author 《Resonance》2004,9(10):34-40

In this second part of the article we discuss how simple growth models based on Fibbonachi numbers, golden section, logarithmic spirals, etc. can explain frequently occuring numbers and curves in living objects. Such mathematical modelling techniques are becoming quite popular in the study of pattern formation in nature.  相似文献   

20世纪90年代以来中国高等教育改革中市场角色的研究   总被引：7，自引：0，他引：7  

卢乃桂  陈霜叶 《教育研究》2004,(10)

20世纪90年代以来,中国高等教育领域出现了一系列的改革,改革的意向可以归纳为促进高等教育质量与数量的发展。虽然这些高等教育改革依然为国家政策所主导和推动,但更多的是对中国的市场经济改革的一种回应,因而"市场"在推动高等教育改革进程中的角色亦不可忽视。比较全球化下高等教育改革中市场作用的特征和脉络,中国"市场"角色更多地表现出以下两点:一是作为新的资源配置渠道,增加来自民间的筹资;二是在协调机制上对原有计划体制的突破,如增强消费者的选择能力,提高大学办学规模效益,提升高等教育质量。  相似文献   

多媒体课件在教学中的开发和应用     

龚小伊 《洛阳工业高等专科学校学报》2002,12(1):24-25

随着计算机技术和网络技术的迅速发展,人们的学习方式、思维方式、工作方式,乃至生活方式都在发生变化,远距离网络教育,网络大学日益发展和普及不仅对传统教育,教学和教学管理提出挑战和更高的要求,同时,也对教育改革产生了深远的影响. 　　……  相似文献   

大学学术社群与教育改革   总被引：11，自引：0，他引：11  

陈伯璋 《教育研究》2004,(3)

随着社会变迁及知识本质的改变,大学中知识的生产、转化、传递也是一种权力的再现与再制,二者间的紧密关系,实际上影响着大学教育的目标、组织与结构、课程与教学。未来大学社群的成员在观念上,应摒弃知识一元化的思维,重新界定与认知知识;在制度方面,必须适度矫正学系过度分化的情形,加强学院合作与整合的能力,让学生能在一种具有协作机制相互观摩学习的学校文化中,获得基础、统整的知识,成为具有通识基础的专才;在课程的改革方面,未来通识课程应以“核心课程”的精神、“多元文化”的观点设计课程,面向多变而又充满创新契机的时代。培养新世纪所需的人才。  相似文献   

对英语听说教学模式的探索     

李国芳  石维 《山西广播电视大学学报》2002,7(2):50-51

根据《大学英语教学大纲》对听力部分的基本要求,针对学生中存在的问题,通过激发兴趣,做好三个结合,以探索一条适合高职高专英语听力教学的模式.  相似文献   

高效薄层光密度法测定葛根中葛根素和大豆甙元的含量     

库尔班江  艾拜都拉 《喀什师范学院学报》2002,23(3):54-57

在硅胶高效薄层色谱板上,采用双波长薄层扫描法同时测定了葛根中葛根素和大豆甙元的含量。该法快速简便,重现性好,板间误差小,方法可靠;葛根素平均回收率为99.84%,变异系数为1.18%;大豆甙元平均回收率为99.86%,变异系数为1.23%。  相似文献