轮胎公式中的魔术公式89

说明：  python随机纤维生成纤维束进行有限元分析（周期性边界条件）(Generate random fiber)

MATLAB 实现的神经网络人脸识别 视频教程哦(MATLAB neural network realization of video tutorials Oh Face Recognition)

智能除湿器可以实现在封闭空间内保持空气湿度，当湿度传感器采样的信号超过设定值，就一会显示并开启除湿器进行降低湿度，包括主程序、采样程序和显示程序(The intelligent dehumidifier can keep the air humidity in the closed space. When the signal of the humidity sensor exceeds the set value, it will display and open the dehumidifier to reduce the humidity, including the main program, the sampling program and the display program.)

地震勘探 AVO正演 雷克子波 运用雷克子波和反射系数进行褶积得到合成地震记录(matlab ricker The seismic record obtained by convolution of rec wavelet and reflection coefficient is one-dimensional, and the AVO response can be identified by the seismic record)

对电机进行基于spwm的变频调速系统，来实现对异步交流电动机的转速调整与三相电流调整(SPWM-based variable frequency speed regulation system for motor)

说明：  采用相场方法，计算合金中枝晶生长，标记为相场模型C_alloy。(Dendrite growth in the alloy was calculated by phase field method and marked as phase field model C_alloy.)

ATP-EMTP直流输电环形接地极等效电路法仿真计算接地电阻模型(Equivalent circuit method of ATP - EMTP DC transmission ring ground electrode simulation calculation of grounding resistance model)

说明：  程序模拟的潮流的手算过程，计算潮流分布，电压分布，前推回代(The program simulates the manual calculation process of the power flow and calculates the power flow distribution)

三相桥式全控PWM整流电路，采用电压外环、电流内环的双闭环控制(Three phase bridge type fully controlled PWM rectifier circuit adopts double closed loop control of voltage outer loop and current inner loop.)

基于TMS32F28035的同步电机矢量控制源代码，包括坐标变换，SVPWM等(Vector control source code of synchronous motor based on TMS32F28035, including coordinate transformation, SVPWM and so on)