排球正面扣球技术教学的球感练习法     

邬燕红 《武汉体育学院学报》2001,35(4):114-116

借鉴了运动心理学有关球感的理论，依据排球正面扣球动作技术的时间与空间特征，结合多年教学的实践经验，在分析与探讨了球感练习对排球正面扣球动作技能形成的作用的基础上，对排球正面扣球动作技术教学申球感练习选择的依据、练习顺序、练习手段及基本要求以及运用球感练习的基本原则等问题进行了分析与讨论。  相似文献   

关于变频调速的应用与节能分析   总被引：1，自引：0，他引：1  

吴文斌  孙开福 《鸡西大学学报》2006,6(6):70-71

文章通过分析变频器调速的节能原理,并结合一个热电厂的变频器改造后的实例,阐述了变频调速的节能效果,提高了设备运行可靠性和节能降耗性。  相似文献   

自力式流量控制器在热网中的应用     

王秋玲  田德华 《河北能源职业技术学院学报》2003,3(4):70-72

开滦荆各庄热水采暖系统98年以前采用普通阀门调节流量，定量困难，由于在检修过程中频繁开关，导致调节功能失效，供暖用户冷热不均。自98年后逐步改用了自力式流量控制器进行流量控制，改后，在使用过程中解决了以往存在的各种问题，实现了节能节水的效果。  相似文献   

Reflectors as online extraverts?     

Kevin Downing 《Educational studies》2004,30(3):265-276

Increasingly, online learning is perceived as an effective method of instruction. Much recent educational research has focused on examining the purposes and situations for which online education is best suited. In this paper, students enrolled in two online courses are compared with their peers enrolled in equivalent classroom‐based courses to investigate aspects of the relationship between learning style and mode of delivery. Student satisfaction measures are taken from participants in both modes of delivery and compared with student learning style. Feedback from the ‘Reflector’ learning style demonstrates higher satisfaction levels with the online mode of delivery compared with their matched counterparts following equivalent classroom‐based courses. Therefore, whilst ‘Reflectors’ might be regarded as Introverts in the traditional classroom setting, the additional time for reflection offered by online delivery makes this group more likely to contribute to online discussion, report higher satisfaction levels and generally behave more like online Extraverts.  相似文献   

带电导体静电场等值面边值问题的边界积分方程     

肖志锋 《杨凌职业技术学院学报》2002,(1)

利用强极值原理将带电导体静电场内、外等值面边值问题化为几个常规的椭圆型Dirichlet边值问题,并建立它们相应的第一类Fredholm边界积分方程,由这些方程解的线性组合可构成原问题的解。  相似文献   

基于Python语言的模式识别应用     

张毅宁 《鞍山师范学院学报》2016,(2)

以模式识别中英文文字识别和人脸检测为例,利用PIL库、pytesser库和OpenCV库实现了图像灰度转换、降噪处理、文字识别和目标检测。应用表明,Python处理实验数据的方法简便灵活,表征数据图形直观明了,适合在数字图像处理课程的模式识别章节中应用。  相似文献   

Maintaining teachers’ face in the context of change: results from a study of Vietnamese college lecturers’ perceptions of face     

Thi Quynh Trang Nguyen 《Teachers and Teaching》2017,23(1):78-90

Gaining and saving face are very important in Vietnam as a mechanism of social control, including the professional behaviour of teachers. Interviews with 15 lecturers (aged 24–37) at a teacher training college in a Central Coast province of Vietnam illustrated the relationship between their concepts of face and their beliefs about good teaching. Most were still strongly influenced by traditional Confucian beliefs about the role and position of teachers, the nature of teachers’ knowledge and the relationship between teachers and students. On the other hand, some teachers also were aware of, and to a limited extent open to, more modern ideas that seemed to be related to broad social changes and reforms in approaches to teaching and learning in recent decades in Vietnam. The findings suggest that some teacher educators are uncertain about the value of traditional professional wisdom in the context of critical changes in society and in education. The research also suggests that the concepts of face and saving face are important for teachers’ sense of agency, and that Vietnamese educational authorities could increase the effectiveness of innovations in teacher education by paying attention to the influence of concepts of face on the teachers’ beliefs and behaviours.  相似文献   

我国绿色建筑现状及发展探讨     

关小燕 《石家庄职业技术学院学报》2011,23(4):72-74

在介绍绿色建筑特点的基础上,分析了我国绿色建筑的发展现状：城市高速发展对环境造成严重影响;起步晚、差距大,但政府支持;发展更全面、更理性、更环保;太阳能在能源创新利用方面最成熟.我国目前绿色建筑发展中亟待解决的问题有：缺乏系统化、专业化的管理,法制建设和激励机制有待完善,从业者绿色建筑意识淡薄,科技投入力度不够等.  相似文献   

抗战文学功能的美学思考     

李新 《忻州师范学院学报》2011,27(1):36-38

文学在抗战时期顺应历史潮流,宣传抗战促使抗战达到全面动员;这同时也促使了文学与当时的社会现实全面而整体的结合,走向现实主义,实现了抗战文学建国与建立新文艺的双重目标。由此,文学与抗战的结合充分显示了文学在抗战时期的作用和功能,展示了文学在特殊历史时期的特殊作用,同时,也为文学开拓了一个崭新的审美表现空间,使文学呈现出不同的文化特征和审美追求。  相似文献   

论严复的体育思想     

常波  杨晓卉 《淮南职业技术学院学报》2004,4(2):120-122

严复作为中国近代启蒙思想家，主张通过发展教育改造整个国民性，塑造优秀的种族来挽救中国，他揭示了鼓民力、重体育对强种保国的必要性，开创了中国体育的新纪元；探讨了严复体育思想及其启蒙价值：开启研究体育之先河，促进学校体育的形成，成为军国民体育的流源。  相似文献