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utmc
本程序用于生成高质量的网格，可用于有限元，有限体积等方法的前处理。(This procedure is used to generate high-quality mesh, can be used for finite element, finite volume methods such as pre-processing.)
- 2017-08-10 11:24:49下载
- 积分：1
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Generate_SystemMatrix
本程序在matlab中运行。
Generate_SystemMatrix是一个计算OSEM，MLEM迭代图像算法中系统矩阵的函数，其用法Generate_SystemMatrix（pixel），为所要重建图像的大小，一般为64,128,256，pixel也大运算越慢。
里面的diedai-test文件是一个简单的MLEM重建算法，其中要加载SystemMatrix矩阵就是Generate_SystemMatrix(128)的结果，注意如果要运行diedai-test，生成的系统矩阵名要保存为SystemMatrix，否则出错。
testsino是一个正弦图实例，就是MLEM算法中的投影矩阵，机算是数据。(This program is run in matlab. The Generate_SystemMatrix is a calculation of the OSEM, a function of the system matrix MLEM iterative image algorithm, its use Generate_SystemMatrix (pixel) to rebuild the image size, usually 64,128,256, pixel also large computing slower. Inside diedai-test file is a simple MLEM reconstruction algorithm, which load SystemMatrix matrix is the result of Generate_SystemMatrix (128), pay attention to if you want to to run diedai-test, the generated system matrix is saved as SystemMatrix, otherwise an error. testsino instance of a sinogram projection matrix MLEM algorithm, machine be regarded as data.)
- 2020-12-08 14:39:20下载
- 积分：1
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matrix-multiplication-and-inverse
这是用C++做矩阵求逆和矩阵相乘，可以解简的线性方程。已验证，互相交流~(This is done using C++ matrix inversion and matrix multiplication, linear equations can be solved。)
- 2014-03-25 11:24:24下载
- 积分：1
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COMSOL在岩石损伤过程的应用
岩石损伤与断裂力学一直是有限元的弱势领域，必须依赖MATLAB一类的数学软件协助，本书籍提供了基础教程与相关案例。(Rock damage and fracture mechanics have been the weak field of finite element, must rely on MATLAB class of mathematical software to help, this book provides basic tutorials and related cases.)
- 2021-04-06 16:19:02下载
- 积分：1
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Problem1
说明： 用fortran 70实现数值积分，并实例计算了三个函数，导出了积分值和误差(The numerical integration is realized by FORTRAN 70, and three functions are calculated with examples. The integral values and errors are derived.)
- 2019-04-16 20:49:25下载
- 积分：1
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wavelet
采用Verilog语言，实现db8小波分解(Realizing wavelet decomposition)
- 2021-04-02 17:09:07下载
- 积分：1
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zernike_coeffs
在matlab里利用逆矩阵算法对于一个给定的波前来算它的泽尼克系数(Zernike Polynomial Coefficients for a given Wavefront using Matrix Inversion in Matlab
)
- 2021-05-13 17:30:02下载
- 积分：1
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递推最小二乘
说明： 一般的最小二乘通常是一次拿到全部的数据， 对所有数据进行统一优化计算得到模型系数。递推最小二乘是以一种递推的方式计算最小二乘，每次使用最新的测量值，来不断更新模型系数。(General least squares usually get all the data at one time, and perform unified optimization calculations on all the data to get the model coefficients. Recursive least squares is to calculate the least squares in a recursive way, each time the latest measured value is used to continuously update the model coefficients.)
- 2021-04-24 15:18:47下载
- 积分：1
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JOURNAL
滑动轴承接触滑块的计算方法，给定雷诺方程和膜厚方程，然后用迭代方法计算压力分布和膜厚分布，以及承载能力(The calculation method of the sliding bearing contact with the slider, a given Reynolds equation and the film thickness of the equation, and then calculated using iterative methods pressure distribution and film thickness distribution, as well as carrying capacity)
- 2013-03-22 09:42:19下载
- 积分：1
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LyapunovspectrumforLorenzattractor
附件中是我用Fortran写的lorenz混沌吸引子的lyapunov指数谱产生程序。包括三部分内容：如何产生lorenz吸引子，详细注释，如何计算lyapunov指数谱。
需要的话也可以单独提取子程序中的四阶龙格库塔算法。
希望有所用。(Annex is written in Fortran I used the Lorenz chaotic attractor of lyapunov index spectrum generation process. Includes three parts: how to generate Lorenz attractor, detailed notes, how to calculate the spectrum lyapunov index. If necessary, extraction can also be a separate subroutine in the fourth-order Runge-Kutta algorithm. Would like to see used.)
- 2008-12-30 09:19:46下载
- 积分：1
