化学矿山自动化控制中心设计

阐述了化学矿山自动化控制中心的主要功能,介绍了自动化控制中心的物理平台设计,包括自动化控制系统的软硬件及工业电视系统,论述了管控一体化在自动化控制中心的体现,最后提出了自动化控制中心设计中的注意事项,给出了UPS电源的选型方案、控制系统及工业电视系统的抗干扰措施。应用结果表明,化学矿山自动化控制中心能够较好地实现矿山生产设备的远程控制与监视以及安全监测仪表的遥测功能,大大降低了生产管理及现场作业人员的劳动强度。     

电视频道品牌形象战略中的色彩设计

随着中国电视事业的迅速发展,电视频道空前繁荣,电视频道之间的竞争也愈演愈烈。国内各个电视台为了能在竞争中求得生存和发展,都逐渐展开频道品牌形象战略,突出自身个性与特点,强化频道的识别性。品牌形象战略是电视频道竞争强有力的手段,而色彩作为品牌形象战略重要的识别元素,直接承载着电视频道的品牌理念和风格主张,色彩的设计必须与频道理念必须高度吻合,提高频道画面质量,使其与观众审美达成一线,建立统一的品牌形象。     

影视动画与中国元素

坚信中国文化,相信中国元素的世界性力量。本文从一部影视动画作品展现出来的中国元素所引发的震撼,浅析中国动画、审思中国元素,引发大家对中国文化的再思考。     

基于NDN体系的广播电视网络的研究

首先介绍了NDN网络和广播电视网络的发展现状,然后对NDN网络的工作原理进行了深入研究。在此基础上,利用NS一3平台的开源ndnSIM仿真器搭建出基于NDN理论的广电网络,进行仿真测试。结果表明,广电网和NDN网络相结合是可行的。     

广播电视系统状态维护技术初探

随着广播电视技术发展速度的不断加快,人们对广播电视的质量提出了较高的要求,而对广播电视系统的维修管理和电视质量的提高具有重要的保障作用.本文首先对广播电视系统状态维护技术的预测性维修和可靠性评估等内容进行了简要阐述,然后从系统构建的详细设计两个方面对广播电视系统状态维护技术进行了初次探究.     

三网融合下数字电视的发展前景

三网融合是我国信息化战略的重要组成部分,而广播电视又是三网融合发展的重要环节。在广电网络数字化整改的背景之下,我国实现三网融合指日可待。数字化电视也逐渐进入到新阶段,有线、无线以及卫星数字化正大力推广。在三网融合的大前提下,我国的数字电视发展前景如何?本文基于此展开研究,对三网融合的概念和发展现状以及对我国数字电视造成的影响进行了研究,最后指出了我国数字电视的发展之路。     

The Internet Movie Database

ABSTRACT

Reference services are increasingly dependent on information available through well organized and reliable Web sites. Questions submitted by library users of all ages are often incomplete, making it difficult for the librarian to easily, quickly, and completely answer the question. The Internet Movie Database (IMDb) is an established Web site that allows easy access to material relating to movies, television series, actors, and actresses with a minimal amount of information from the searcher. This article explores the Internet resource of the Internet Movie Database and its potential benefits for librarians.     

基于DVB—T的PCTV条件接收系统设计

该文介绍了DVB—T和条件接收的基本工作原理,并在此基础上对基于DVB-T的PCTV条件接收系统进行了设计,并给出了各模块的相关软件设计。此系统基本上实现了对DVB—T信号的调谐和解调,经测试,能通过第三方player清晰流畅的播放透明的以及加扰的节目。     

电视气象节目在数字化媒体环境中的适应与发展

数字化媒体使传统电视媒体在传播空间、传播内容、受传关系上发生了改变,借助数字电视、车载移动电视、手机电视等平台,气象信息的社会价值被极大地激发出来。该文着重论述了气象节目在数字化媒体中存在的问题、对策和发展前景,为电视气象节目在传播方式上实现创新提供了一些新的思路。     

Evaluation of stereoscopic picture quality with CFF

The method of binocular stereoscopic imaging has attracted attention as a simple and technically feasible means of three-dimensional (3-D) display. It has been said, however, that the binocular picture system is more fatiguing to view than a conventional two-dimensional picture, such as the current television picture. The main objective of this paper is to evaluate quantitatively fatigue caused by binocular stereoscopic picture viewing, to clarify the basic characteristics of this type of picture. Various measurement methods of fatigue have been proposed, and that using the critical flicker frequency (CFF) has found wide use in measurement of mental fatigue and is easy to make. Actual measurement in this study used the CFF value obtained in a descending series of the method of limits, normalized to the value at the start of measurement for each observer, and the CFFs of all observers then averaged. It was found that the measurements produced stable and highly accurate results. CFFs of the observers of a current television picture and a binocular stereoscopic television picture were measured. It was found that the conventional television did not cause a statistically significant decrease in CFF—even over 1?h of viewing—but that the stereoscopic television did cause a significant CFF decrease within 30?min. It was also found that the CFF decreases are related to a subjective feeling of fatigue. From these results, it was concluded that CFF is an effective measure for objectively measuring the fatigue of television observers, including observers of binocular stereoscopic television. Also, the binocular stereoscopic television produced higher fatigue in observers than did the conventional television picture, but it was found that with respect to CFF viewing of around 30?min was allowable.