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双向渐进拓扑优化方法，以最大化频率为目标(Bi directional progressive topology optimization with the goal of maximizing the frequency)

TdxDockSite 问题的解决，不用control atom既可-TdxDockSite，don t use control atom

RDM协议标准的图文说明,希望对有些朋友有所帮助-RDM graphic protocol standards, hoping for some help to Friend

C#实现带下拉功能的工具栏菜单，呵呵，WinForm版的窗口下拉菜单，其实这种形式很常见，当点击工具栏中的小按钮的时候，主出现了下拉二级菜单，可有效利用窗体工具栏的可用空间，增加菜单功能，比较不错的菜单制作技巧。

学生管理系统,希望对大家有所帮助，第一次上传，多多见谅-Student management system, we want to help, the first upload, a lot forgive

说明：  GBK，unicode utf-8 编码转换工具(Encode Convert Tool between GBK,unicode utf-8,url)

1 SVD COMP-SVD分解例程。 2 svdCOMP-SVD分解程序。 3 采取MXN矩阵A，并将其分解成UDV，其中U、V是 4 左右正交变换矩阵，D是A 5 奇异值对角矩阵。(svdcomp - SVD decomposition routine.)

说明：  The Demo mainly displays stock trading software, futures, stocks, time maps, K-line maps, etc. When the finger slides the screen, the K-line maps can be enlarged, narrowed and loaded with more data. Similar to the function of Bull Stock

用WinAPI写的定时关机的小程序的源码，比较简单，作为参考。(Shutdown using WinAPI write a small program source code is relatively simple, as a reference.)

Vissim中文教程、VAP、pua文件指导说明(Vissim Chinese tutorial, VAP, PUA file instructions)