制作多媒体课件需要注意的几个问题     

王铁兰 《雁北师范学院学报》2001,17(5):94-95

制作多媒体课件要先编制好课件脚本，注意处理好字，图片，视频，音频等素材，并要重视对课件的测试。  相似文献   

电视发射机运行中断视频保护     

沈如良 《遵义师范学院学报》2001,3(4):60-61

简要分析电视发射机运行中视频中断产生的危害,以及具体的预防、保护措施.  相似文献   

中小学生影视文化环境现状与对策研究     

于江峰 《青岛职业技术学院学报》2001,14(4):67-72

中小学生成长的文化环境日趋多元化、复杂化。本文通过问卷调查的方法收集到大量数据 ,为教育机构和教育工作者正确认识影视的正负影响 ,采取有效措施 ,提供有力依据。在影视的影响势力日趋强大的时代 ,家庭、学校、社会各方力量必须联合起来 ,以帮助中小学生在以影视为主导因素构成的现代文化环境中健康发展  相似文献   

Promoting Early Literacy for Diverse Learners Using Audio and Video Technology     

James R. Skouge  Kavita Rao  Precille C. Boisvert 《Early Childhood Education Journal》2007,35(1):5-11

Practical applications of multimedia technologies that support early literacy are described and evaluated, including several variations of recorded books and stories, utilizing mainstream audio and video recording appropriate for libraries and schools. Special emphasis is given to the needs of children with disabilities and children who are acquiring a second language.  相似文献   

网络课件中虚拟实验的操作及管理研究   总被引：1，自引：0，他引：1  

冯乃光 《现代远程教育研究》2003,(2):44-46

本以《计算机电路基础》课程网络课件的网上虚拟实验操作为例，首先介绍了网络虚拟实验教学中遇到的种种问题与解决的方法，然后，以实践为基点，探讨了网上虚拟实验的教学过程的建立、实施及考核方案，最后重点介绍了该课程网络课件部分网上虚拟实验的实施过程和在线考试的具体操作过程。  相似文献   

The Changing Ecology of Tools for Live News Reporting     

Frode Guribye  Lars Nyre 《Journalism Practice》2017,11(10):1216-1230

Broadcast news channels provide fresh, continuously updated coverage of events, in sharp competition with other news channels in the same market. The live moment is a valuable feature, and broadcasters have always relied on teams that can react quickly to breaking news and report live from the scene. Technology plays an important role in the production of live news, and a number of tools are applied by skilled actors in what can be called an ecology of tools for live news reporting. This study explores new video tools for television news, and the tinkering conducted by the reporting teams to adapt to such tools. Six journalists and photographers at broadcaster TV 2 in Norway were interviewed about their everyday work practices out in the field, and we present the findings in an analysis where six aspects of contemporary live news reporting are explored: (1) from heavy to light equipment, (2) more live news at TV 2, (3) the practice of going live, (4) the mobility of live reporters, (5) tinkering to go live, and (6) quicker pace of production. In the concluding remarks we summarize our insights about live news reporting.  相似文献   

可视个案研究培训模式的理论基础     

赵伍 《河北北方学院学报(社会科学版)》2003,19(4):70-73

素质教育实施成败的关键在于教师素质,寻找一种符合时代精神的教师培训模式,是教育研究工作者非常关注的。文章从行动研究、建构主义、思维结构理论以及教师教学监控能力等基本理论对“可视个案研究培训模式”的科学性作进一步的理论分析。  相似文献   

图像相关性同步算法FPGA的实现     

ZHANG Bo  LU Heng-li 《教育技术导刊》2007,(15)

研究了如何利用图像内容相关性实现视频图像同步播放,提出并验证了一种适用于嵌入式系统FPGA的基于图像内容的两路视频同步算法。  相似文献   

Does training with 3D videos improve decision-making in team invasion sports?     

Tanja Hohmann  Hilke Obelöer  Nele Schlapkohl  Markus Raab 《Journal of sports sciences》2016,34(8):746-755

We examined the effectiveness of video-based decision training in national youth handball teams. Extending previous research, we tested in Study 1 whether a three-dimensional (3D) video training group would outperform a two-dimensional (2D) group. In Study 2, a 3D training group was compared to a control group and a group trained with a traditional tactic board. In both studies, training duration was 6 weeks. Performance was measured in a pre- to post-retention design. The tests consisted of a decision-making task measuring quality of decisions (first and best option) and decision time (time for first and best option). The results of Study 1 showed learning effects and revealed that the 3D video group made faster first-option choices than the 2D group, but differences in the quality of options were not pronounced. The results of Study 2 revealed learning effects for both training groups compared to the control group, and faster choices in the 3D group compared to both other groups. Together, the results show that 3D video training is the most useful tool for improving choices in handball, but only in reference to decision time and not decision quality. We discuss the usefulness of a 3D video tool for training of decision-making skills outside the laboratory or gym.  相似文献   

Analysis of swimming performance: perceptions and practices of US-based swimming coaches     

Robert Mooney  Gavin Corley  Alan Godfrey  Conor Osborough  John Newell 《Journal of sports sciences》2016,34(11):997-1005

In elite swimming, a broad range of methods are used to assess performance, inform coaching practices and monitor athletic progression. The aim of this paper was to examine the performance analysis practices of swimming coaches and to explore the reasons behind the decisions that coaches take when analysing performance. Survey data were analysed from 298 Level 3 competitive swimming coaches (245 male, 53 female) based in the United States. Results were compiled to provide a generalised picture of practices and perceptions and to examine key emerging themes. It was found that a disparity exists between the importance swim coaches place on biomechanical analysis of swimming performance and the types of analyses that are actually conducted. Video-based methods are most frequently employed, with over 70% of coaches using these methods at least monthly, with analyses being mainly qualitative in nature rather than quantitative. Barriers to the more widespread use of quantitative biomechanical analysis in elite swimming environments were explored. Constraints include time, cost and availability of resources, but other factors such as sources of information on swimming performance and analysis and control over service provision are also discussed, with particular emphasis on video-based methods and emerging sensor-based technologies.  相似文献