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Is a two hidden layer back propagation neural network, Power System Transient Stability Program, can be transient stability, Between two images showing the relative circumstances of each pixel.

时间域信号转化为频率域，显示其频谱。matlab语言(Time domain signal into a frequency domain, indicating its spectrum. matlab language)

说明：  kotlin app using firestore as database

谭浩强的C语言书籍，对于C语言的学习来说，是一本很好的入门书籍(a good book for C)

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说明：  模块化多电平换流器(modular multilevelconverter MMC)已成为柔性直流输电系统的首选换流器拓扑。我国已建成的上海南汇柔性直流工程、南澳三端柔性直流工程、舟山五端柔性直流输电工程以及正在建设中的厦门柔性直流工程都采用MMC结构。国际上SIEMENS已建成的美国跨湾工程(Trans Bay Cable Project TBC)和法国一西班牙联网工程(INELFE工程))都采用MMC结构。同时，ABB公司提出了一种级联两电平结构(cascaded two level CTL)，其本质仍为MMC，并且ABB后续建设的数项柔性直流工程都采用CTL结构。因此，MMC已由最初的低压、小容量示范工程向高电压、大容量方向快速发展，展现出很好的发展前景。(Modular multilevel converter (MMC) was first proposed and patented by Professor R. Marquardt in 2001. It consists of several sub modules (SM) with the same structure. The sub module structure can be divided into three types: half H-bridge, full H-bridge and double clamp sub module. Modular multilevel converter (MMC) has shown a very important engineering application prospect.)

VC++号码生成器-随机生成手机号码，随机生成彩票号码，只要是随机生成号码的都可以用，不过要针对你的要求修改程序，本程序在生成随机号码前需要指定号码位数和随机数范围才可以，用起来还是挺方便的，生成速度比较快，具体界面请参见截图所示。

delphi编写的程序更新,查找update.ini并下载更新程序~!-delphi procedure for the preparation of updated update.ini search and download the update ~!

说明：  仿真sar成像RD算法其中包括回波生成距离压缩方位压缩距离徙动校正(RD algorithm for simulated SAR imaging includes echo generation range compression azimuth compression range migration correction)

修改磁盘卷标的C源程序-amend disk label C source