组播以其独特的优势，在网络通信方面的应用越来越广泛，但随之而来的就是安全问题，其中密钥管理是最基本的问题之一。本文研究了安全组播中的密钥管理问题。介绍了现有的两...

多任务操作系统资料,非常有用的培训教程,请大家过目,大家多多指教-Multi-tasking operating system information, a very useful training course, please look over, we all exhibitions

是WTL的开发包,直接包括在路径中,最好放在VC目录中,要更新的包请到官方网站去下载-WTL is the development kits, including the direct path, the best on the VC directory, To update the kits free to download the official website

这是一部很好的PHP学习的电子图书，我的php编程思想都是从这里学习的。-This is a good learning PHP electronic books, I thought the php programming from here are learning.

ntko office 处理全文检索问题，效率高，是不下流行的检索工具-ntko office deal with the issue of full-text search, high efficiency, is no less than the popular search tools

通信系统仿真原理与无线应用，matlab仿真参考书-Communication System Simulation Theory and wireless applications, matlab simulation of reference books

介绍了GPRS 数据终端(简称GPRS DTU)的组成, 分析了其实现形式和优缺点。详细地阐述了基于索尼爱立信GR47 模 块的集成GPRS 数据终端的软、硬件实现。测试表明: 在服务器的网络速率大于20kb/s 时, 建立套接字的成功率达到了 99.5 -Introduced the GPRS data terminal (referred to as GPRS DTU) the composition, an analysis of the realization of the form and the advantages and disadvantages. Detail based on Sony Ericsson GR47 module integrated GPRS data terminal software and hardware to achieve. Test showed that: in the server" s network speeds greater than 20kb/s when the success rate of establishing socket reached 99.5

华为的通信数据文挡，比较经典，学习通信的最佳助手。-Huawei

Open Source for the Enterprise Open source software is changing the world of Information Technology. But making it work for your company is far more complicated than simply installing a copy of Linux. If you are serious about using open source to cut costs, accelerate development, and reduce vendor lock-in, you must institutionalize skills and create new ways of working. You must understand how open source is different from commercial software and what responsibilities and risks it brings. Open Source for the Enterprise is a sober guide to putting open source to work in the modern IT department.-Open Source for the Enterprise Open source software is changing the world of Information T echnology. But making it work for your company i "s far more complicated than simply installing a copy of Linux. If you are serious about using ope n source to cut costs, accelerate development, and reduce vendor lock-in, you must institutionalize skills and create ne w ways of working. You must

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