Butterworh滤波器程序

该损伤模型通过 商用有限元软件ABAQUS /Explicit 的用户子程序VUMAT 实现，并使用该模型对碳纤维增强环氧树脂 复合材料层合板在横向低速冲击作用下的损伤和变形行为进行预测分析． 数值仿真的结果与试验结 果进行了比较，吻合良好，验证了该模型的有效性．(Through coding user subroutine VUMAT of finite element software ABAQUS /explicit， and applied the model to an example，carbon fiber reinforced epoxy composite laminates under low velocity impact，the prediction for damage and deformation were good agreement with the experimental results．)

SPH方法计算二维溃坝问题的源程序，个人觉得还可以(Two-dimensional dam break problem SPH method the source, individuals felt that I could)

矢量的合成分析 求矢量f(n,2)在指数x(n)为高指数年(x(n)>coefh的年）的平均值fh(2)、低指数年(x(n)<coefh的年）的平均值fl(2)、高指数年与气候平均的合成差dh(2)、低指数年与气候平均的合成差dl(2)、以及高低指数年的合成差dhl(2)和差的显著性tn(5)。 (Synthesis of vector demand vector f (n, 2) the index of x (n) for the high-index on (x (n)> coefh of the year) average fh (2), low index on (x (n) <coefh的年）的平均值fl(2)、高指数年与气候平均的合成差dh(2)、低指数年与气候平均的合成差dl(2)、以及高低指数年的合成差dhl(2)和差的显著性tn(5)。)

三维数据同化中关于背景误差协方差的求解方法(The solution of background error covariance in 3d data assimilation)

PSCAD Simulation for Lines

Fortran实现的内插程序，给出经纬度值，可以内插出该处的大地水准面差距。(Fortran interpolation procedures to achieve given the latitude and longitude values ​ ​ can be interpolated geoid there.)

Fortran常用算法程序集－第二版.pdf，很全的算法程序集，对提高Fortran编程能力大有帮助。(Fortran common algorithm assembly- Second Edition. Pdf, is the whole assembly algorithms, to improve the Fortran programming skills go a long way.)

In numerical analysis and scientific computing, the Gauss–Legendre methods are a family of numerical methods for ordinary differential equations. Gauss–Legendre methods are implicit Runge–Kutta methods. More specifically, they are collocation methods based on the points of Gauss–Legendre quadrature. The Gauss–Legendre method based on s points has order 2

适合于稀薄流动计算的气体动力学格式源码，该源码为xukun老是JCP论文中的算例一致(UGKS1D- shock structure calculation using Unified Gas-Kinetic Scheme)

地球科学（Fortran90）: 计算空间重力异常、扰动重力、垂线偏差或重力梯度的垂向梯度。 计算方式：数值积分、二维平面FFT、二维球面FFT或一维FFT。(Earth Science (Fortran90): calculate the gravity anomaly, gravity disturbance, the deflection of the vertical or gravity gradient vertical gradient. Calculation: numerical integration, FFT of the two-dimensional plane, two-dimensional spherical FFT or one-dimensional FFT.)