第4章：聚合函数

Raidsim磁盘模拟器，可以模拟磁盘的各种操作，例如读预取，Catch块替换等，非常好用，而且很不好找，希望对大家有点帮助。-RAIDframe: A Rapid Prototyping Tool for RAID Systems

trans former desing soft ware

c#和vb的dll相互调用，包含源码，提供参考(C# and VB DLL call each other)

网络编程,聊天室的服务器端代码,可以作为网络编程的参考.-network programming, chat rooms, the server-side code, as network programming reference.

网络数据采集分析源码，程序结合易语言第三方支持库网页浏览框及其它支持库、模块，读取采集网络数据进行分析。(Network data acquisition and analysis source, easy language program combined with third-party support library browser frame and other support libraries , modules, read the analysis of the data collection network .)

PSCAD simulation.Investigation D-STATCOM and DVR Operation for Voltage Control in Distribution Networks with a New Control Strat

作者：季健国 Q Q：181002208 虚拟操作系统(Author : State quarter Kin Q Q : 181002208 Virtual Operating System)

可以用于开发基于cmpp或smpp或sgip协议的短信服务支持，我用过，效果不错：）-can be used to develop on-cmpp or sgip agreement or SMS support services, I used, the effect is true :)

说明：  非常著名的视频，音频引擎，SDL开发库。。。。(Very famous video, audio engine, SDL development library.....)

Compared to the development of computers, or the Internet, or even cars, the evolution of aviation equipment appears to be very unhurried. Several factors contribute to this very gradual pace, but one of the most important is the extreme care with which any innovation affecting safety has to be examined, evaluated, analyzed, and tested. Satellite navigation equipment for aircraft is not an exception, so predicting its future for the next20 years is relatively easy compared to predictions for other fields. In this paper first of all we will describe briefly the challenges that satellite navigation must solve to be available solution for aviation. Then, we will describe the systems that have been developed to overcome these challenges and the performance they offer today, or will offer very soon. There is currently an explosion in satellite Navigation: before the end of this decade there will be over three times more satellites, offering civil signals in two distinct frequencies (as opposed to one today).