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There are three kinds of switching mode DC-DC converters, buck, boost and buck-boost. The buck mode is used to reduce output voltage, whilst the boost mode can increase the output voltage. In the buck-boost mode, the output voltage can be maintained either higher or lower than the source but in the opposite polarity.

猫脸变换用于水印中，将水印图像经过一定次数的变换得到不能识别的图像，增强了水印的鲁棒性(Cat face transform for watermarking, the watermark image after a certain number of times the transform of the image does not recognize and enhance the robustness)

利用蒙特卡罗法计算积分，感觉很有用，大家试试！(Using Monte Carlo method to calculate points, feel useful, we try!)

以协调控制系统为对象,基于减法聚类的多模型在线辨识算法.(Multi-model line identification algorithm based on subtractive clustering.)

计算音频文件的过零率、短时能量、端点检测(failed to translate)

说明：  如何用MATLAB产生高斯白噪声!!!!!!!!!!!!~~~~~~~~(How to use MATLAB generated Gaussian white noise !!!!!!!!!!!!~~~~~~~~)

以MATLAB將影像做色彩空間轉換， 轉換的色彩分別為RGB轉Gray scale, RGB轉YUV, RGB轉lab, RGB轉HSV(MATLAB will do to the image color space conversion, the conversion of RGB colors were transferred Gray scale, RGB turn YUV, RGB turn lab, RGB and HSV)

以身高与体重为特征进行C-均值聚类,matlab( C-means clusteringbased ob height and weight )

Text book related machines and electrical power systems

双向DC，plecs仿真，带闭环控制，可以联合仿真(Bidirectional DCplecs simulation)