宽带卫星通信系统分析与技术展望

本文主要阐明科学发展观与转变外贸增长方式的关系,认真落实科学发展观是我国外贸进一步发展的现实选择;分析我国外贸增长面临的新环境,正确处理面临的矛盾和问题,加快转变外贸增长方式是迎接新挑战、提升我国在国际分工中地位的需要;重点按照科学发展观的要求,从以人为本出发,在发展新思路、做好协调、统筹、可持续发展等方面提出转变外贸增长方式应采取的措施。     

多媒体教学的特点及其在课堂教学中的应用

在当代课堂教学中,重要的实践手段便是多媒体技术的应用,对当代的教育氛围和教学经历起到推动作用。因此在提高教学质量的前提下,怎么借助多媒体并让其在教学中发挥最大的作用,成为现代教育工作者研究的热点。     

An advanced multimedia infrastructure for WWW-based information systems

We present an advanced multimedia infrastructure that integrates continuous real-time media streams within the WWW. This new service architecture focuses on advanced facilities for dealing with multimedia contents. A mediation server is at the heart of the infrastructure. It organizes and structures the multimedia information space. In addition to simple services for accessing and delivering multimedia data, it provides new functionalities for filtering and querying multimedia content. Content servers and on-line sources deliver media streams integrated within synchronized multimedia presentations. We think that the infrastructure will offer new opportunities for WWW-based information systems and electronic commerce. This revised version was published online in June 2006 with corrections to the Cover Date.     

一种移动无线网络分组公平调度算法

提出了一种支持时延限制的无线多媒体流公平调度算法。算法根据无线信道的服务质量，动态调整该信道连接的业务速率，并根据各个业务请求当时的时延因子的大小来公平地补偿和再分配带宽。仿真验证了算法的可行性和科学性。支持对时延敏感的流和对差错敏感的流，能做到区别补偿调度，满足各自的QoS需求。     

Infotainment and the Moral Obligations of the Multimedia Conglomerate

When the Federal Communications Commission considered revamping its policies, many political activists argued that media conglomerates had failed to meet their duties to protect freedom of speech. Moveon’s dispute with CBS over its proposed Superbowl advertisement and Michael Moore’s quarrel over distribution of his documentary, Fahrenheit 911, are cases in point. In matters of pure entertainment, the public expect companies to avoid offensive programming. The press, on the other hand, may well be forced to offend some audience members in order to create a viable forum for political dissent. As journalism and entertainment are increasingly inter-linked, an in depth moral analysis of the media corporation and its obligations becomes increasingly important. I explore Kantian, Utilitarian, and Rawlsian analyses of corporate obligation in the aforementioned cases. I then examine whether or not these results suggest anything more generally about the sorts of mission statements and ethical policies that ought to be endorsed by media conglomerates and whether non-business institutions also require changes. Ultimately, I suggest that at a minimum, media institutions should view the duty to promote the representation of diverse views in a democracy as an imperfect moral and civic duty rather than making programming decisions solely by reference to profit. Ideally, greater access to media access should not be increased for the most powerful unless doing so at the same time increases free speech opportunities for those who currently have the least access.     

基于云环境高校多媒体室PC冗余存储空间——挖掘与应用

随着科学技术的飞速发展,PC技术也不断更新提高。无论从功能及硬件存储等诸多方面提高迅速。对于广大的应用者,尤其是工作在云网络环境下PC的应用者,更应该掌握这些先进的技术,同时要充分利用这些设备及功能,发挥它们的最大功效。本文着重阐述了基于云环境多媒体室PC冗余存储窨的挖掘与应用,同时也论述了如何合理地在这些空间相关性信息,并充分利用这些信息,充分为高校教学科研工作服务。     

多媒体网络辅助教学在《体育保健学》课程中的应用

利用多媒体网络辅助教学在体育保健学课程中进行教学试验。结果表明,多媒体网络辅助教学模式优于传统的教学模式,该教学法能充分发挥教师主导作用和学生学习主体性地位,能整体上提高教学效果和质量。     

多媒体计算机辅助英语专业写作课教学的研究

建构主义学习理论为多媒体计算机辅助英语写作教学提供了理论依据。运用多媒体计算机辅助英语写作课教学有着传统教学无法比拟的优势,在指导性写作、合作性写作、自由性写作以及学术论文写作等写作类型的教学上更具优越性。     

基于多媒体和网络资源的计算机基础课教学改革

高校的计算机基础课教学改革一直在进行。阐述了教改中存在的问题,即过多依赖教材或完全忽视教材资源的多媒体教学模式,对如何更加充分利用多媒体教学模式和网络资源推动高校非计算机专业计算机基础课教学改革方面提出了一些建议。     

认知无线电在未来多媒体移动通信中的应用

本文分析企业在引进中高级人才工作中遇到的风险,分析了产生这些风险的原因,风险给社会与企业带来的后果。并在此基础上,结合实践工作中的经验,提出了在中高级人才引进过程中防范风险的应对措施。