引入优化压缩思维的无线视频传感器网络路由协议

针对无线视频传感器网络能量异构普遍存在的特点,提出一种引入优化压缩思维的无线视频传感器网络路由协议,确定节点的可压缩性,在簇头节点中完成数据的稀疏以及观测,将少数测量数据发送至汇聚节点,汇聚节点通过采集节点压缩数据的测量向量,进行压缩感知解码,完成数据的压缩以及重构操作。通过蚁群算法获取无线视频传感器网络中最小成本的路径,将数据分组发送至所有邻居节点,蚂蚁依据能量水平的高低确定下一跳,从而更好的完成全网能量均衡,蚂蚁走完所有路径后,对其信息素进行计算,求出信息素的挥发带来的负反馈,给出新的带宽函数以及跳数函数,节点间通过周期性的广播路由更新分组确保路由表的正确性,在路由选择时综合分析带宽与跳数因素,有效提高了无线视频传感器网络的吞吐量。仿真实验结果表明,所提协议可有效均衡网络能耗,延长整个网络生命周期。     

影视资料在生理学教学中的应用

在生理学课堂教学中适当应用影视资料能激发学生学习兴趣,活跃课堂气氛,取得了良好的教学效果。教师应根据生理学的教学内容,甄选与之匹配的影视资料,合理安排播放时间,使其在课堂上发挥应有的效果。     

视频公开课中视听语言的设计应用及影响

运用现代化新媒体视频手段进行教学和文化传播已经成为教学改革的重点。在阐述高校视频公开课重要性的基础之上,从影视制作者的角度分析当下公开课视频存在的视听问题,并对其拍摄过程及后期制作提出建议。     

Development of students’ conceptual thinking by means of video analysis and interactive simulations at technical universities

Video analysis, using the program Tracker (Open Source Physics), in the educational process introduces a new creative method of teaching physics and makes natural sciences more interesting for students. This way of exploring the laws of nature can amaze students because this illustrative and interactive educational software inspires them to think creatively, improves their performance and helps them in studying physics. This paper deals with increasing the key competencies in engineering by analysing real-life situation videos – physical problems – by means of video analysis and the modelling tools using the program Tracker and simulations of physical phenomena from The Physics Education Technology (PhET?) Project (VAS method of problem tasks). The statistical testing using the t-test confirmed the significance of the differences in the knowledge of the experimental and control groups, which were the result of interactive method application.     

由视频文化探求高校图书馆宣传策略

视频宣传作为一种新兴的宣传形式,以其直观性、形象性得到读者的广泛欢迎。本文通过对宣传视频的分析,提出高校图书馆宣传应从4W（定位、文化、趣味、立体式网络）4个方面提升读者参与度、扩大社会影响力。     

我国民族地区社会稳定的措施体系初探

多种原因所致,目前我国民族地区存在较为突出的社会稳定问题。针对这些原因,应该构建有效的措施体系：通过文化交流和沟通,巩固民族团结;通过经济、社会和法治建设,促进整体发展;采取打防结合,维护社会秩序。这种措施体系,将有利于保持民族地区的社会稳定和社会发展。     

浅析互联网视频对高职院校外语教学的影响

互联网视频的普及为高职高专外语教学提供了多样化的教学材料,有利于营造良好的语言环境,网络视频内容的时效性有利于提高学生的学习热情。但另一方面网络视频的应用也对外语教学提出了挑战：教师要扩充知识储备,提高信息素养,注重学生个性化需求．在网络视频的使用上给予学生适当的引导。     

基于标注的体育视频管理系统的设计与实现

研究目的和方法:针对体育视频使用过程中存在的问题和现状,利用数据库管理技术和第三方视频控件开发方法,设计并实现了一个基于标注的体育视频管理系统。研究结果与结论:以一种较为简便的方式解决了目前体育视频使用过程中关于相关片段的精确定位、快速搜索和标注信息共享的问题。     

Picturing How Life Insurance Matters

What kind of object is private life insurance? To discuss this question, this article examines how life insurance is pictured, that is, explained and concretized with words and visual images, in the promotion of private life insurance in Finland between 1945 and 2000. In principle, life insurance can only be used for assessing and securing the economic value of life. The empirical material shows, however, that life insurance, as an object, can only exist if economic value and other values constantly overflow into each other, and calculation and affect are made to intertwine. In order to objectify their potential customers' lives as economic potential, as commodities, insurance companies have indeed had to objectify life – yet not only in terms of monetary value, but simultaneously and as importantly, also as something that is irreducible to monetary value. Hence the promotion of life insurance enacts a double stabilization of objects. On the one hand, advertisements and leaflets show how life insurance matters, what it is capable of, and thus stabilize the understanding of insurance itself as a tool. On the other hand, the promotional materials both stabilize and mobilize ‘life’ as an assemblage of heterogeneous practices and modes of valuation that is irreducible to economic potential.     

足球、裁判与法律———以录像裁判和“自由心证”为视角 蔡

裁判的执法历来是足球场上的焦点之一,常为球迷观众所非议。这其中电视录像是否可以作为裁判执法的依据更是个备受争议的话题。结合足球裁判执法与法律上法理、诉讼等相关主题的相似之处,加以剖析,说明引入电视录像作为裁判判罚的依据弊大于利。进而,针对足球裁判执法方式与法官断案“自由心证”模式相类似的特点,提出一系列的制约和保障措施,以利于裁判制度的完善。