轮胎公式中的魔术公式89

宾馆管理系统论文，很全民，适合学习和借鉴(Hotel management system thesis, it is universal, suitable for study and reference)

说明：  对网上现有的产生m序列的线性反馈移位寄存器代码进行了修改，可以通过输入本原多项式向量，生成相应m序列(The existing linear feedback shift register code for m-sequence generation on the Internet is modified. The corresponding m-sequence can be generated by inputting the primitive polynomial vector)

永磁直驱风机的MATLAB仿真，实现了基于PI控制的0d轴控制(MATLAB simulation of permanent magnet direct drive fan)

说明：  MODIS气溶胶反演IDL程序，含辐射校正程序，云检测程序等等(MODIS aerosol retrieval IDL program, including radiometric correction program, cloud detection program and so on)

声波正演程序，运用二维声波波动方程进行声波的正演模拟(Sound wave forward program)

该软件是针对地下导线测量的改进方法设计的，即不必在地下对全站仪进行精确的点下对中，在全站仪上安装一个偏心测量盘，通过对实际测量结果进行归化改正，从而得到理论正确的测量结果。该软件需要用户输入指定参数，如偏心距e，实际测量角度β，实际测量距离L等，从而计算出理论测量角度α和理论测量距离S(The software is designed according to the improved method of underground traverse survey, which do not have the exact point of total station in the underground, the installation of a disc eccentricity measurement by total station, based on the actual measurement results are correct so as to obtain the measurement result of domestication, correct theory. The software requires the user to input the specified parameters, such as the eccentricity e, the actual measurement angle beta, the actual measurement distance L, etc., so as to calculate the theoretical measurement angle alpha and the theoretical measurement distance S)

说明：  轴承故障诊断，自己编写的基础EMD分解程序，实测很好用。(Bearing fault diagnosis, self-compiled basic EMD decomposition program, the actual measurement is very useful.)

说明：  实现激光打标机二次开发，能够成功实现初始化的过程，但是需要将本程序放置到原EZCAD软件的文件夹内。(To realize the secondary development of laser marking machine, the initialization process can be realized successfully, but this program needs to be placed in the folder of the original ezcad software.)

将flac3.0代码转换为flac5.0代码(Convert flac3.0 code to flac5.0 code)

说明：  LsDyna二次开发流程介绍及示例。umat42各向同性材料。(Introduction and example of secondary development process of LSDYNA)