RTS4

响应面法计算相关系数情况下结构的可靠度.已知极限状态方程，变量服从对数正态分布，变量均值和标准差已知，且知道变量的相关系数。(Response surface methodology to calculate the correlation coefficient of reliability under the circumstances structures known to limit state equation, variables lognormal distribution, the mean and the standard deviation is known variables, and that the correlation coefficient variables.)

u can calculate DCT clc inp = imread( Im1.jpg ) inp1 = imread( Im2.jpg ) A = double(inp(:,:,1)) B = double(inp1(:,:,1)) A1=double(blkproc(A,[8 8], dct2 )) B1=double(blkproc(B,[8 8], dct2 )) [r,c] = size(A1) r1 = [] for i=1:r for j=1:c if A1(i,j) > B1(i,j) r1(i,j)=A1(i,j) else r1(i,j)=B1(i,j) end end end r1= double(r1(:,:,1)) C=blkproc(r1,[8 8], idct2 ) round(C) C1=idct2(r1) figure imshow(uint8(C)) figure imshow(uint8(C1)) imwrite(uint8(C), dct8x8min.jpg )

MATLAB 软件是当今控制系统的设计与仿真中重要的工具软件。该软件仿真方便， 结果直观、准确。本文以单相桥式全波可控整流电路及三相桥式全波可控整流电路为例，叙 述了利用 MATLAB/SIMULINK对整流电路进行建模仿真的方法，并给出了仿真结果波形。 通过对仿真结果分析就可以将系统结构进行改进或将有关参数进行修改使系统达到要求的 结果和性能，这样就可以极大地加快系统的分析或设计过程。 (MATLAB software is the current control system design and simulation of the important tools. The software simulation convenience, the results of direct and accurate. In this paper, single-phase full wave controlled rectifier bridge and three-phase full wave controlled rectifier bridge, for example, describes the use of MATLAB/SIMULINK model of the rectifier circuit simulation method, and gives the simulation results waveform. Through the simulation results of the system structure can improve or modify the relevant parameters of the system to achieve the required results and performance, so that you can greatly speed up the system analysis or design process.)

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这是一个关于计算机数学建模的书籍,实用性很强,可作为实际建模的指导资料.(This is a mathematical modeling of computer books, very practical, as a practical modeling guidance information.)

小波方法应用到故障诊断，灰度值显示，具有很好的实用价值(Wavelet method is applied to fault diagnosis, gray value shows that have good practical value)

kmeans算法的描述，源代码实现，matlab上 的程序(kmeans)

说明：  数据挖掘算法，support vector machine算法源代码，用于分类(data mining algorithms, support vector machine algorithm source code for classification)

A Rayleigh distribution is often observed when the overall magnitude of a vector is related to its directional components.

使用大量的有限元法求解偏微分方程，阐述了负荷预测的应用研究,采用偏最小二乘法。( Using a large number of finite element method to solve partial differential equations, It describes the application of load forecasting, Partial least squares method.)