二维扩散方程的有限差分法

通过滑动T检验时间序列的变化趋势，一般多用于气象分析(T-test time series by sliding the trend, generally used for weather analysis)

fortran90的潮汐调和分析和预报程序(Fortran90 tidal harmonic analysis program )

It is a FORTRAN90 library which evaluates Bessel J functions of noninteger order. List of Routines: BESSEL_JX_VALUES returns some values of the Jx Bessel function. DBESJ computes Bessel J functions of non integer order. D1MACH returns double precision real machine constants. D9LGMC computes the log Gamma correction factor. DASYJY computes Bessel J and Y functions of large order. DCSEVL evaluates a Chebyshev series. DJAIRY computes the Airy function Ai(x) and its derivative. DGAMLM computes bounds for the argument in the Gamma function. DGAMMA computes the complete Gamma function. DLNGAM computes the logarithm of the absolute value of the Gamma function. I1MACH returns integer machine constants. INITDS determines the necessary length of a Chebyshev series. RJBESL evaluates a sequence of Bessel J functions. TIMESTAMP prints the current YMDHMS date as a time stamp. XERMSG

Ansys动力分析中大质量法的应用,主要用于地震动计算,行波及多点输入的实现(Dynamic Analysis Ansys massive application of the law, mainly for ground motion calculation, OK affecting the realization of multi-point input)

使用Fortran涡度、散度、涡度平流、温度平流计算代码(Using Fortran vorticity, divergence, vorticity advection, temperature advection calculation code.)

基于PSCAD/EMTDC搭建的双向DC/DC，适用于储能研究(Bidirectional dc/dc converter based on PSCAD/EMTDC,suitable for battery research)

This UMAT program is a very good material for beginners in learning how to form Jacobin Matrix, how to update stress, etc.

CPML在地震波模拟中的实现源码。主要包括了二维和三维交错网格有限差分及其完全匹配层实现。(Group progam for Seismic wave modeling.CPML implemention in finite difference of seismic wave modeling. )

将ABAQUS的ODB结果文件按照人为要求在文本文档中记录(On ABAQUS ODB results file records in a text document in accordance with human requirements)

说明：  9跨每跨35米桥梁响应的车桥耦合程序，使用Fortran编写(9 of 35 meters span bridge across every bridge coupled response procedures, the use of Fortran written)