pinghua

this code is a faster kmeans clustering implementation

不同刚度对临界转速值得影响，也是matlab程序。有分析内容。(Different stiffness of the critical speed is worth, is also a matlab program. Tired ah)

the file converts avi format file to yuv file

trace transform application in matlab

transformation matrices for a wireframe cube

本程序基于约瑟夫森结的RSJ模型，对无微波辐照和微波辐照下约瑟夫森结的特性进行了数值计算求解，其中有微波辐照的RSJ模型求解采用了四阶龙格库塔方程函数，两种情况都给出了I-V特性曲线图（程序包中也附带），展现了量子化电压台阶。(This procedure based on the RSJ Josephson junction model, no microwave radiation and microwave radiation characteristics of Josephson junction has been calculated solving, in which microwave radiation has the RSJ model for solving a fourth-order Runge-Kutta equation function In either case, they are given IV characteristic curve chart (also included with the package), demonstrating the quantum level of voltage.)

iris segmentation matlab code

用于分析输入信号的瞬时频率的程序，可通过调用改程序观察信号频率随时间的分布情况(used to analysis the instans frequency of the signal)

edge detection using direction and vector operators

程序采用的是两层循环上实现位移谱的求取。内循环实现在地震波下由上一步所得到的位移、速度和加速度得到下一时间间隔后的位移速度和加速度；外循环实现在不同结构自振周期（频率）下遭遇地震波的响应。(Program uses a two-layer loop on calculate displacement spectra. Cycle based on seismic waves obtained the previous step under the displacement, velocity and acceleration are next after the interval velocity and Acceleration outer loop implementation in different natural period of structure (frequency) the response under earthquake wave.)