fredholm

Evesen开发的scalarmodel，耦合了集合卡尔曼滤波算法和集合卡尔曼平滑算法(Scalarmodel coupled with Ensembled Kalman Filter and Ensembled Kalman Smoother)

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.)

说明：  分别对beta估计值模拟分析、非中心对称分布、卡方拟合优度检验、筛选抽样随机数抽取、有限样本性质模拟这5个内容进行了编程说明(The five contents of beta estimation simulation analysis, non-centrosymmetric distribution, chi-square goodness-of-fit test, random number extraction of screening sampling and Simulation of finite sample properties are explained by programming.)

说明：  分维反映了复杂形体占有空间的有效性，它是复杂形体不规则性的量度。它与动力系统的混沌理论交叉结合，相辅相成。它承认世界的局部可能在一定条件下或过程中，在某一方面（形态，结构，信息，功能，时间，能量等）表现出与整体的相似性，它承认空间维数的变化既可以是离散的也可以是连续的，进而拓展了视野。(Fractal dimension reflects the validity of space occupied by complex bodies, which is a measure of irregularity of complex bodies. It combines with chaos theory of dynamic system and complements each other. It recognizes that the part of the world may be similar to the whole in certain conditions or processes (form, structure, information, function, time, energy, etc.). It recognizes that the change of spatial dimension can be discrete or continuous, thus expanding the horizon.)

说明：  采用电磁仿真软件HFSS进行雷达散射截面(RCS)计算实例.(Monostatic Radar Cross Section)

这个程序是关于轴承刚度方程的MATLAB程序(This program is about the bearing stiffness equation MATLAB program)

单次快拍 MUSIC 算法，这种单次快拍 MUSIC 算法仅利用接收的一次快拍的 M（M 为阵元数）个数据，通过对这 M 个数据做统计处理，来估计阵列数据的协方差矩阵(Single snapshot MUSIC algorithm, this single snapshot the MUSIC algorithm only receiving a snapshot M (M array element number) data, statistical treatment of these M data to estimate the array data co covariance matrix)

关于流体计算软件FLUENT中Y+设置的一些建设性的讨论，值得大家参考。(On computational fluid dynamics software FLUENT some constructive discussions in the Y+ set is worth your consideration.)

该源程序是黑油模型的源代码，黑油模型是油藏数值模拟的基本程序。(The source is the source code of black oil model, black oil model is the basic numerical reservoir simulation program.)

矩阵的广义逆计算，共两种方法，其中迭代法有一阶收敛和二阶收敛(generalized inverse matrix calculation, a total of the two methods, which iteration is a second-order convergence and convergence)