Supply_Chain_Risk_Simulator__SCRS_

digital communication codes

首先从n个数据对象任意选择 k 个对象作为初始聚类中心；而对于所剩下其它对象，则根据它们与这些聚类中心的相似度（距离），分别将它们分配给与其最相似的（聚类中心所代表的）聚类；然后再计算每个所获新聚类的聚类中心（该聚类中所有对象的均值）；不断重复这一过程直到标准测度函数开始收敛为止。一般都采用均方差作为标准测度函数. k个聚类具有以下特点：各聚类本身尽可能的紧凑，而各聚类之间尽可能的分开。(First, a data object from the n choose k objects as initial cluster centers and for the rest of the other objects, according to their similarity with the cluster center (distance), respectively, assign them to their most similar (represented by cluster center) clustering then calculated for each cluster center received a new clustering (all objects in the cluster mean) repeats this process until the convergence criteria begin until the measure function. Standard deviation is generally used as a standard measure function. K a cluster has the following characteristics: the cluster itself as a compact, but separated as much as possible between each cluster.)

板壳理论解析解matlab实例，包括莱维方法、纳维方法(The analytical solution of shell theory MATLAB examples, including Levi method, Navier method)

钟型隶属函数-a参数变化钟型隶属函数-a参数变化(Bell-shaped membership function-a parameter change in bell-shaped membership function-a parameter change)

说明：  直接扩频序列的仿真 bpsk调制解调 有图示说明(DSSS simulation)

说明：  DVBS2 system : transister + receiver

图形动作模糊消除，matlab程序，用模糊图像你方差决定NSR，运动角度及运动模型可自行在程序中修改，适合启发新手(Graphic motion blur is eliminated, matlab program, using fuzzy image you decide NSR, motion angle and the motion model can modify the program, suitable for freshman inspiration)

是基于matlab的二维fdtd计算电磁场理论的一段程序，考虑了pml边界条件，不需要密码(Is based on two-dimensional FDTD calculation matlab electromagnetic theory section of the procedure, consider the PML boundary conditions, does not require a password)

在MATLAB的simulate工具箱中直流电机的速度PID控制(Toolbox in MATLAB' s simulate the speed of DC motor PID control)

微元法仿真OFDR散射波形，加扰模拟，可以直接运行(OFDR scattering waveform, perturbation simulation)