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1.
视频监控系统是日常生产生活中的重要辅助设备,广泛应用于诸多场合,目前正向着网络化、数字化、系统集成的方向高速发展.文章结合视频监控系统的概念、分类、发展和流媒体技术的相关知识,详细介绍了网络流媒体视频监控系统的具体架构.  相似文献   

2.
流媒体是网络环境中的一种新的媒体形式,有着广阔的应用前景。本文初步探讨了流媒体技术的原理及实现流媒体技术的网络协议,介绍了流媒体技术在远程教育中的应用。  相似文献   

3.
随着计算机多媒体技术和网络技术的飞速发展及人们对信息大量需求,基于网络的分布式流媒体通信系统得到广泛应用,如远程教育、远程医疗、在线游戏等。本文对流媒体通信技术作了较为详细的介绍,包括流式传输方式、视频服务器硬件平台、流媒体传输网络协议、流媒体通信技术发展现状、流媒体在3G中的主要应用等,并针对流媒体通信目前所存在的问题对流媒体通信技术的发展方向作了一定得探讨。  相似文献   

4.
基于Windows Media流媒体技术及其在网络教育中的应用   总被引:2,自引:0,他引:2  
通过对流媒体与流放、Windows media技术的介绍和分析,文章给出了基于Windows media的流媒体技术概况,联系到这些技术正不断被应用于网络教育的实际,阐述了流媒体技术在网络教育中的几个重要应用。  相似文献   

5.
流媒体技术是网络多媒体信息的重要传输手段.介绍了流媒体技术的特点与实现,探讨了流媒体技术在网络远程教育中的应用。  相似文献   

6.
康筱彬 《科技信息》2009,(9):43-43,24
在流媒体技术飞速发展的今天,移动流媒体的应用越来越成为我们关注的焦点。本文介绍了流媒体技术的定义以及工作原理,就如何进一步的开展移动流媒体业务,如何在当前网络状况下完善移动流媒体服务进行探讨。重点分析了移动流媒体的特点,相关业务的开展状况和需要改进的地方。  相似文献   

7.
流媒体技术及其格式   总被引:1,自引:0,他引:1  
随着流媒体技术的发展及在广播电视领域的应用,使得广播电视在Internet上得以延伸和发展。本文介绍了流媒体实现的关键技术流式传输,论证了流媒体文件格式在流媒体系统中占有重要地位,分析了流媒体文件格式及其对流媒体服务器的影响。  相似文献   

8.
介绍了流媒体技术的概念、工作原理及其特点,叙述了流媒体技术在企业中的4种主要应用,展望了该技术在企业应用中的广阔前景。  相似文献   

9.
高校图书馆流媒体视频数据库的构建与实践研究   总被引:1,自引:0,他引:1  
介绍了在高校图书馆中采用流媒体技术构建视频数据库的技术基础以及实践研究.并就佳木斯大学图书馆创建数字化特色视频数据库过程中的相关可行性理论和技术问题及其应用效果,进行深入探讨.  相似文献   

10.
覃志强 《科技资讯》2006,(4):106-107
随着宽带互联网和高速校园网的普及,实时流媒体逐渐应用于教育领域。本文介绍实时流媒体技术和主流的实时流媒体应用系统,指出实时流媒体系统在虚拟课堂教学、网络教学的实时音视交互和网络语言实验室建设方面有着广阔的应用前景。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

19.
20.
<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has  相似文献   

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