媒体服务器

Firstly, the thesis introduced the development of VOD, the background and meaning of the program, then the author introduced the associated technology, mainly including the feature of multimedia, video compression technology and the protocols SCTP and RTP. Considering the ambulant of host , fluctuation of bandwidth,high error rate data in wireless networks ,the author proposed some QoS strategy in the wireless networks such as RTP/SCTP protocol stack , connection control of the server, two buffers in the client end point.,TFC congestion control algorithms ,etc. Based these strategies, the team members gives the software and hardware solution of the wireless video-on-demand system and gives the main modules design of the software system. The system adopted the C/S structure including two parts: server and client ,using the Mpeg-2 which is apporiate for networks as the supported format. The thesis emphatically researches on the video-serving module of the server and the sink module, player module of client.

本文首先介绍了视频点播系统的发展现状、课题的研究背景和意义；接着对课题的相关技术进行概述主要包括了多媒体特点，压缩技术，传输协议SCTP以及RTP；针对无线环境的节点移动性，带宽波动性，数据错误率高等三大特点，作者研究设计了无线环境下的QoS策略：RTP/SCTP协议栈，服务器准入控制机制，客户端双缓冲区，TFRC拥塞控制机制等；在这些策略的基础上设计了系统的软硬件解决方案，并对软件体系结构的主要模块进行了设计，整个视频点播系统采用C/S结构，由服务器，客户端2个部分组成，使用适合网络传输的流媒体格式Mpeg-2作为系统支持的格式，文中重点研究了服务器的视频服务模块以及客户端的接收模块和播放器模块，并利用线程池技术对系统进行实现。

In this system, we introduces cluster architecture to provide global and scalable streaming caching proxy service mechanism; We implement streaming media transfer protocol on caching proxy end; We implement layered caching mechanism (global disk caching and memory caching) using dynamic sharing running memory buffer algorithm to support more stable and real-time parallel streams; We implement client request aggregation by means of streaming session sharing to reduce disk I/O and serve more user; We propose single streaming image to support the unify of pre-fetching streaming and caching streaming, which guarantees the proxy streaming of transparency for client; We design and implement streaming pre-fetching mechanism based on packet feedback information to reduce the number of "rebuffering" on client end; We bring forward streaming caching admission control policy fit for streaming caching proxy server to guarantee the QoS of streaming service.

该系统引入集群架构以提供全局的、可扩展的缓存代理服务机制；实现了缓存代理端的流媒体传输协议；采用动态共享运行缓冲区算法实现了分层缓存机制(全局磁盘缓存和内存缓存)以支持更多稳定、实时的并发流；利用流会话共享机制实现了客户请求聚集，从而减少磁盘I/O同时能服务更多的客户；提出了单一流映像，以支持预取流和缓存流的统一，从而保证代理端服务流对客户的完全透明；设计并实现了基于包反馈信息的流数据预取机制，从而减少了客户端的"rebuffering"次数；提出了适合于缓存代理服务器的流缓存准入控制策略，保证了流服务的QoS。

Logon Security, Automatic backup after each session, Clickable Web Page designer screens with Automatic Browser Preview, Insertable Titles, Headings and Text, Webmatex MediaPicker for viewing and selecting multiple media types from one screen, Integrated Media Library Folder System with GIF,JPG,WAV,AVI,MOOV, WYSIWYG, Sound , Animated GIFs and Video, WebmateX ColorPicker with click select Background, Links, Font and Table color, Variable Text with Size, Colour, Fonts, Web Page Navigation Controls, Automatic prevue of Logos, Banners, Images, Rulers, and Controls, Millions of style combinations, Automatic Generation of Code, Hyperlinks, Web Site and Server Root, And more!

登录安全，自动备份每届会议之后，点击网页设计师的屏幕，自动浏览器预览，插入标题，标题和文字， webmatex mediapicker供阅览及选择多个类型的媒体，从一个屏幕，集成的媒体库文件夹系统的GIF ， JPG格式， wav ，为AVI ， moov ，所见即所得，声音，动画GIF和视频， webmatex colorpicker与按一下选择的背景，链接，字体和颜色表，可变文本与大小，颜色，字体，网页导航控制，自动prevue的标志，横幅，图片，统治者，和控制，数以百万计的风格组合，自动生成代码，超文本链接，网站和服务器的根目录，以及更多内容！

We want to store media files to the SharePoint server.

我们要存储媒体文件到SharePoint服务器。

In particular applications of VoIP, the server yields media streams and manages all routines associated to tasks.

尤其是VoIP的应用，服务器产量媒体流并管理所有相关的日常任务。

After setting up user accounts and backing up your computers, it's time to start putting up some media onto your server.

建立之后，用户帐户和备份您的计算机，可以开始把一些媒体到您的服务器。

Streaming Media Player server code, for the multimedia network player is very good understanding of the principles.

详细说明：流媒体播放服务器代码，对于多媒体网络播放原理的理解很有好处。

This kind of algorithm allows video server to admit bigger numerary user, media of contented much user answers the demand with put stable state sex and migratory successional condition.

这种算法答应视频服务器接纳更大数目的用户，满足多用户媒体回放的稳态性和迁移态连续性的要求。

IT者网站提供英文翻译,未经授权请勿转载】 Be in on April 8 " lasting tower " pop of open test fire is opened, the unusually fervent game that this media that be mixed by orgnaization of many professional sport fries opens wide a gate to mainland area player eventually, for a short while " lasting tower " if server stream emerges, royal respect is adding a server ceaselessly all the time, satisfy into the player group that geometrical multiple adds.

就在4月8日《永恒之塔》开放测试火爆开启，这款被多家专业游戏机构和媒体炒的异常火热的游戏终于向大陆地区玩家敞开大门，一时间《永恒之塔》的服务器人潮如涌，盛大方面一直在不停加开服务器，满足成几何倍数增加的玩家群体。

On 8 annual meeting, liu professoriate is discussed how to produce through content, collect fees by draft, advertisement server interface, wait for public praise of creation society media with new social media tool, press release of social media public relations, accessary market sale, and the opportunity that offers by company of culture fish etc, will optimize rich guest, use rich guest to make money.

08年会上，刘教授会探讨如何通过内容生产，按稿收费，广告服务器界面，用新的社会媒体工具等创造社会媒体口碑，社会媒体公关新闻稿，附属市场营销，以及由文化鱼及其他公司提供的机会，来优化博客，利用博客赚钱。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。