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   

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   

一种实用的人脸识别系统     

王芳 《河北软件职业技术学院学报》2007,9(3):55-57

本文构建了人脸识别软件系统的基本框架.对给定的包含人脸的输入图像,通过与已知人脸库中存储的模型进行匹配比较,确定是否是库中某一人物.如果是,则给出最佳匹配库中人物,从而实现自动人脸识别.  相似文献   

A NEW ALGORITHM FOR FAST HIDDEN SURFACE REMOVAL OF COMPLEX OBJECTS     

富煜清  黄金法  林峰 《东南大学学报》1994,(2)

ＡＮＥＷＡＬＧＯＲＩＴＨＭＦＯＲＦＡＳＴＨＩＤＤＥＮＳＵＲＦＡＣＥＲＥＭＯＶＡＬＯＦＣＯＭＰＬＥＸＯＢＪＥＣＴＳＦｕＹｕｑｉｎｇ（富煜清）；ＨｕａｎｇＪｉｎｆａ（黄金法）；ＬｉｎＦｅｎｇ（林峰）（ＤｅｐａｒｔｎｉｅｎｔｏｆＲａｄｉｏＥｎｓｉｎｅｅｒｉ...  相似文献   

综放工作面自动化系统的研究     

吕一中 《河北软件职业技术学院学报》2003,5(2):40-42

本文主要对我国煤矿综放工作面自动化控制系统进行研究,建立控制系统的框架以及系统通信的有关协议,确立控制系统的主要功能。它开创了国内工作面自动化的先例,它不仅在煤矿安全,生产管理,人员减少方面发挥很大的作用,而且具有实用价值和推广价值。  相似文献   

模糊语言在教师评价语中的运用与功能     

叶淑斌 《宜春学院学报》2011,33(11)

教师课堂评价性语言对学生的发展会产生很大影响,因此,教师在对学生进行评价时要讲究语言表达的艺术。模糊语言以其自身的含蓄,委婉,灵活等修辞功能在交际中具有：礼貌客气,委婉含蓄,保护面子等潜在的交际功能。在教师的评价语中恰当地使用模糊语言有助于评价语取得更好的表达效果。  相似文献   

后博客时代的传播媒介——“微博”在电大教学中的应用   总被引：1，自引：0，他引：1  

郝轶鸣 《山西广播电视大学学报》2011,(6):46-48

随着网络技术的不断更新,中国也在继博客、播客之后,涌现出一批诸如新浪微博、腾讯微博的传播媒介。＂微博＂作为后博客时代的新兴传播工具,具有跨时代的意义,同时也是电大教学过程值得探讨的重要课题。  相似文献