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说明：  增加断裂能考虑的用户子程序UMAT，用于纤维增强复合材料模拟损伤过程中考虑断裂能(Add fracture ability to consider user subroutine UMAT)

各向异性材料损伤准则，复合材料三维Hashin损伤准则(Anisotropic material damage criterion, the three-dimensional composite Hashin damage criterion)

说明：  科大訊飞实现实时听写例子,完整的demo调用实例，可以参考(HUST Xunfei realizes real-time dictation examples, complete demo invocation examples, you can refer to)

利用Pytorch实现的一个简单的神经网络，实现了异或门。(Using a simple neural network implemented by Pytorch, XOR gates are realized.)

说明：  神经网络教程，用于matlab 数学建模学习资料(Neural network course, used for matlab mathematical modeling learning materials)

说明：  VC++增强版电子标尺软件的源代码，透明窗体的实现是本程序的关键性技术，本标尺采用两点测量、多点测量、多角度测量的方法，配合窗体透明特效，完成一个逼真好用的电子标尺，这样，当你在网页上需要确定图片及媒体的宽度和高度时，就可用这个软件轻松的量出它的尺寸了。 (Enhanced version of VC++ source code of the software electronic scale, transparent form of implementation is the key technology of this procedure, the use of two measurement scale, multi-point measurement, multi-angle measurement method, with transparent window effects, to complete a real good using electronic ruler, so that when you need to determine the picture on the website and the media width and height, you can use this software easily measure out the size of it.)

系统辨识与matlab 仿真程序 可直接在MATLAB6.I下运行的MATLAB程序的编号和书本上的内容对应如下，每个程序题目括号内的file.m是对应书本上的内容在光盘上第一部分的程序编号。-system identification and Matlab simulation program can be directly under the MATLAB6.I running MATL AB procedures and the number of books on the correspondence follows, Every procedure topic within the brackets is file.m counterparts on the contents of books in the first part of the CD No. procedures.

addsecret是为文件等加密的软件，是VB开发的！大家可根据自己情况加密！-addsecret for documents encryption software, VB! We can according to its own encryption!

传统的三相电机空间矢量控制方法会引起很大的，频率很高共模电压，本程序采用相对矢量合成零矢量，降低了共模电压的幅值和频率(The traditional space vector control method of three-phase motor will cause great common-mode voltage with high frequency. This program uses relative vector to synthesize zero-vector, which reduces the amplitude and frequency of common-mode voltage)

这个RAR内有一个用VB做的，能用16种方法关闭窗口的代码，作为VB来说，关闭窗口是一个程序能给他人展示不同效果的方法，让人眼镜一亮。