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随着改革开放的深入发展,各种科学信息技术广泛应用到各行各业中。信息时代的今天,是新科技、新知识与新理论的竞争,任何领域只有率先掌握这些新信息,才能在激烈的市场竞争环境中提高竞争力。体育信息领域要想更好的发展,同样需要掌握新的体育运动理论方法与技术手段。体育信息领域在不断扩大中增加了录像、可是光盘等传播交流媒体,传统的信息传播手段已经无法适应现代体育的发展,因此,在体育信息领域中进入多媒体技术,将会更好地推动体育信息领域的发展。本文主要针对多媒体技术在体育信息领域中研究的相关问题进行探讨。 相似文献
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电视作为传播体育新闻信息的窗口,在传播体育文化、弘扬奥运精神方面发挥着重要作用。对体育节目进行解说不仅指导观众了解和欣赏体育项目,还为观众提供简化的认知框架,调动其情绪、引导其参与到体育赛事中采。笔者将从索契冬奥会报道中分析体育节目中解说的作用。 相似文献
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如同PC的发明,互联网的发展兴起孕育出了庞大的具有信息时代特征的网络文化。信息网络已成为重要的文化传播、消费平台,网络文化正成为社会文化体系的重要组成部分。党的十七届六中全会提出了建设社会主义文化强国的长期战略,提出要"发展健康向上的网络文化"。信息通信业作为现代传播体系的重要组成部分 相似文献
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一、引言
随着信息化、网络化的发展.人们对能在第一时间快速获取音视频信息的需求越来越大,而电视转播车作为这种快速传播信息的移动载体,将会成为各大电视台及其他传媒机构的主要工具而被广泛使用。 相似文献
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随着我国社会经济的快速发展,广播节目已经成为人们日常生活中不可缺少的一部分。因此,广播主持人作为向听众传播信息的媒介,必须加强其个性风格的培养,从而使其得到更多听众的喜爱追捧。 相似文献
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进入21世纪后,信息化程度不断加深,社会各个领域广泛地应用信息化技术,并使各行各业取得突破性发展。在体育方面最明显的现代化标志是全球范围内的体育信息网络化,应用先进信息技术,在高效传播体育信息资源方面,不管是控制力还是影响力,都获得了空前的发展。在这样的背景之下,体育信息资源以及信息服务的重要性越来越突出,为了使高校体育的信息服务体系具备中国特色,应该大力开发高校体育信息资源,将服务体系作为工作的重点,使高校体育信息服务与时代要求相符合,对体育信息服务进行改革和创新。文章对此展开了分析。 相似文献
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随着现代信息技术的快速发展,新媒体环境已经成为加强党建新闻宣传工作的重要阵地。新媒体环境作为建设中国特色社会主义文化的新平台,能够积极促进党建宣传工作,结合先进的信息传播技术促进党建文化宣传,充分发挥新媒体环境为党建工作带来的优势并以正确的舆论方向带领宣传工作,对党建新闻宣传工作尤为重要。 相似文献
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DingYaogen 《电子科学学刊(英文版)》2002,19(4):441-444
Recent research progresses in Multi-Beam Klystron(MBK)in IECAS are briefly introduced in the letter,The S-band MBKs of IECAs have peak power of 120-250kW,average power of 4-9kW,efficiency of 35-45%,gain of 41-46dB.beam voltage of 15-19kV,and weight of 40-45kg.Some key technical problem of MBK are also described and discussed.Among them,improving the design of MBK to botain the required bandwidth,raising beam transmission to increase average power,eliminating oscillation and spray spectrum,overcoming window breakdown caused by magic mode,reducing breakdown times of electron gun,are most important things for the practical MBK.Besides,further research owrk in MBK in IECAS is commented. 相似文献
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The Digital Gap has been recognized as one important issue to develop a country. This paper reviews the most important concepts and parameters that take place in the information and communications technologies and Digital Gap matter. Also reports a survey made in Maracaibo, the second largest city of Venezuela in order to determine the access level to such technologies and discuss the government policies in order to reduce the Digital Gap. 相似文献
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模电教学中的形象思维 总被引:1,自引:0,他引:1
赵青梅 《电气电子教学学报》2001,23(6):104-105,108
阐述了形象思维在认识客观世界时的重要作用,同时以大量的实例说明形象思维在模电课程中的应用,并论述了如何在模电教学中利用形象思维提高教学质量,同时培养学生的形象思维能力。 相似文献
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域名系统面临的安全威胁和风险不断加大,安全事件增多主要是缺乏有效的监管和相应的更积极的技术手段和措施。因此,转变对互联网非传统安全问题的认识.充分研究域名系统面临的新情况、新问题和新威胁,切实增强保障域名系统安全的责任感和紧迫感,是保证我国互联网稳定发展的前提。 相似文献
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《Digital Communications & Networks》2018,4(4):244-257
This paper presents a review of recent investigational studies on exciting Surface Plasmon Polaritons (SPPs) in MicroWave (MW) and TeraHertZ (THz) regimes by using subwavelength corrugated patterns on conductive or metal surfaces. This article also describes SPP Microstrip (MS) structures at microwave and terahertz frequencies, and compares their significance with that of conventional MS Transmission Lines (TL), in order to tackle the key challenges of high gain, bandwidth size, compactness, TL losses, and signal integrity in high-end electronic devices. Because they have subwavelength properties, surface plasmon polaritons are gaining attention for their improved performance and ability for miniaturization in high-speed dense circuits. They possess comparably minuscule wavelength compared to incident light (photons). Consequently, they can demonstrate stronger spatial confinement and higher local field intensity at optical frequencies. In addition to engineering spoof SPP waveguides, which are created by engraving grooves and slits on metal surfaces to allow operation on at low frequencies (microwave and terahertz), semiconductors with smaller permittivity values and thus lower free charge carrier concentration have been demonstrated as a potential candidate in plasmonic devices. If necessary, further tuning of semiconductor-based SPP structures is aided by controlling the charge carrier concentration through doping, or by external stimuli such as optical illumination or thermal excitation of charge carriers from valence to conduction bands. This article conclusively covers previously elucidated perspectives on manipulating SSPPs in the MW and THz ranges, and emphasizes how these could steer next-generation plasmonic devices. 相似文献
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本文介绍了DDN的基本结构和作用,分析了DDN设备的几个特点,指出了DDN在惠州市电信业务中的几种主要的应用,最后还指出了DDN设备使用中存在的问题。 相似文献
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The authors describe the development trends and results of millimeter-wave systems in Japan in such fields as communication, radar, and measurement systems. The applications included are the W-40G waveguide transmission communication system, an automobile traffic control system using the 60-GHz band, a collision avoidance radar system for an automobile, a plasma electron density measuring system, and satellite communication. The authors describe the development of devices such as high-power FET amplifiers, traveling wave tube amplifiers (TWTAs), IMPATT amplifiers, low-noise amplifiers, and monolithic microwave integrated circuit (MMIC) devices used in constructing the millimeter-wave systems 相似文献
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ZHANGYun-chuan WANGBing-zhong 《中国电子科技》2005,3(1):40-44
Advances in developing transitions in microwave integrated circuits during the last ten years are reviewed. Some typical structures of transition are introduced, Transition structures can be classified into two basic types: one is transition between the same ]rind of transmission lines on different planes of a common substrate, the other transition between different types of transmission lines.Furthermore, future development of transition structures is discussed. 相似文献