Correspondence

How can teachers utilize video games in the classroom, harnessing a technology that is gaining “market share” in the lives of our students? This article will provide classroom teachers with a research-based rationale for using video games along with a viable, classroom-tested lesson to teach social studies content using a widely available commercial video game. Specifically, how to use the game Civilization IV in the classroom to allow world history high school students to explore the impact technology has on societal development and the human experience and their place in time. This correlates to NCSS Curriculum Standard II: time, continuity, and change and NCSS Curriculum Standard VIII: science, technology, and society.     

H.264在会议电视业务中的应用

本文首先介绍了会议电视业务的概念以及未来的发展方向,然后重点讲述了H.264图像压缩编码技术,对H.264技术优势进行介绍,并对H.264技术以及采用了H.264技术的会议电视业务未来的应用前景进行了分析.     

A Chance to Catch a Breath: Using Mobile Video Ethnography in Cycling Research

Abstract

Under the rubric of transport much previous research on everyday mobility has focused on understanding the more representational and readily articulated aspects of everyday movement. By way of contrast, emergent theorisations of mobility suggest that an understanding of the less representational – those fleeting, ephemeral and often embodied and sensory aspects of movement – is vital if we are to fully understand why and how people move around. Accordingly, the ability of conventional methods to complement new research agendas, particularly those related to issues around the sensory, affect and embodied experience has been called in to question. This paper contributes to the burgeoning literature on mobile methodologies by critically discussing a theoretical and methodological journey towards mobile video ethnography in the context of a project researching cycling in London, UK between 2004 and 2006. In doing so it highlights three ways in which mobile video ethnography can contribute to research in the new mobilities paradigm: video as a way of ‘feeling there’ when you can’t be there; video as a way of apprehending fleeting moments of mobile experience; and video as a tool to extend sensory vocabularies. It also critically discusses the limitations of video as a text and the importance of embodied experience, interpretation and audiencing to its success as part of a mobile methodology. Whilst emphasising the need for caution, the paper demonstrates the way in which mobile video ethnography can contribute to a new mobilities agenda by facilitating more situated understandings of daily corporeal mobility which highlight an alternative time‐space politics to those inscribed in road spaces.     

Participatory video analysis in disability research

This article sets out critical framing as an analytical approach in participatory video by which people investigate and analyze a topic through arts-based engagement, storyboarding, and collaborative editing. Participatory video as an action research method in self-advocacy has been discussed elsewhere. Here, the author examines critical framing and the role of generative themes in participatory analysis by describing a case study in which adults with developmental disabilities explored the dimensions of sexual health through participatory video. The author proposes that critical framing provides a more nuanced approach to participatory analysis. Credibility and trustworthiness with data triangulation and overall findings are also described.     

新时期中国影视民俗学的现状与问题

文章依据详实的资料 ,概括了新时期中国影视民俗学的发展现状和存在的问题     

信息社会背景下的异地法官远程视频审判的设想

经济基础决定上层建筑。人类进入信息社会,作为上层建筑的司法制度也必然会进行变革。信息社会为司法的变革提供了物质基础,已经相对成熟的远程视频通讯技术使法官身处异地审判成为可能。我们设想由随机产生的不同地域的法官组成合议庭通过远程视频系统审理案件,并当庭作出判决,将法官从熟人社会中彻底解脱出来,完全不受人情、金钱和权力的影响,只凭证据和法律作出判断。但远程视频审判的实现有赖于一个比较充分的庭前准备,只有双方在庭审前充分的交流,包括证据和意见的展示,才可以使庭审顺利进行。     

教学行为差异的比较与分析——两节录像课的对比研究

新课程倡导培养学生的问题意识，教师是学生学习的引导者、合作者、课堂教学的参与者，以改变学生的学习方式．不同的教师对这些认识存在的差异会具体体现在教学实践过程中．通过定性和定量的分析，横向比较这些差异，有助于教师反思自身的教学行为，加深对新课程理念的认识与理解．     

视像的形式与儿童认知的契合性——以动画片为例

儿童对视像的注意力是极不稳定的,但是动画片为什么能够把儿童的注意力吸引到电视屏幕上,这既是研究者的兴趣所在,也是商业资本的兴趣所在。本文从动画片的运动性与跳跃性、夸张与变形与儿童认知的契合性为论述的焦点,从认知心理学的角度对儿童喜欢动画片的原因进行了深入的分析。     

高速数字光纤传输系统研究

针对光纤数字传输的特点和低成本千兆芯片,提出了一种新的千兆数字光纤传输的开发设计方案,包括多路复用、编码、解码、解复用、发射机和接收机原理设计、数字视频及多速率业务的接入和恢复以及高速ＰＣＢ板的设计,试验结果证实其效果良好。     

电子海图系统雷达信息转换技术的研究

提出了一种基于三角函数变换的比例乘法器法,解决了方位角和径向距离的坐标变换,最终转换为视频存储器中的位图地址,实现了电子海图系统雷达信息的转换。