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有限元计算控制加载中弧长法（arc-length）的matlab源程序(Loading FEM arc length control method (arc-length) matlab source)

利用emd算法解决经验模式分解的一些存在的端点效应问题。 有效的解决了问题。(Using emd algorithm to solve some of the empirical mode decomposition end effects exist. Effective solution to the problem.)

一个用于弹性接触分析的边界元fortran源程序(One for the analysis of elastic contact BEM fortran source)

线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 line contact of 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)

矩阵计算，包括加减乘，反矩阵，python源码，可以直接使用(matrix calculation)

合成孔径雷达（SAR)目标成像仿真，多姿态，多角度，有不同光照,小波包分析提取振动信号中的特征频率。( Synthetic Aperture Radar (SAR) imaging simulation target, Much posture, multi-angle, have different light, Wavelet packet analysis to extract vibration signal characteristic frequency.)

SAP5 源代码，完整的有限元源程序。LS1.FOR-LS10.FOR(SAP5 Source Code)

计算动力学研究，应力波引起的裂纹扩展问题，供大家学习(Kinetics calculations, crack propagation problems caused by stress wave for everyone to learn)

算法优化非常好，几乎没有循环，Relief计算分类权重，包括四元数的各种计算。( Algorithm optimization is very good, almost no circulation, Relief computing classification weight, Including quaternion various calculations.)

说明：  利用时域有限差分计算电磁场，采用时域算法计算(Calculation of electromagnetic field by FDTD)