FourDataBase稳峰

说明：  粒径级配的分形维数计算方法，基于筛分实验结果的分形维数计算。(fractal dimention calculating according grain size distribution by the sieving analysis)

根据舰船螺旋桨噪声一书给出的计算空泡噪声的公式，简便计算各种条件下的螺旋桨噪声级的程序(According to the formula for calculating the cavitation noise given in the book "Propeller Noise of Ships", the program for calculating the propeller noise level under various conditions is simple and convenient.)

PBR一个用来作PB资源文件的工具,有了它就可以自已方便地制作PB的资料文件了.(PBR used as a resource document PB tool With it could easily produce their own PB information documents.)

解决了QP问题的一种方法,参考书 Model Predictive Control System Design and Implementation Using MATLAB(solve QP problem. Refer to Model Predictive Control System Design and Implementation Using MATLAB)

包含多种MATLAB拓扑优化程序，运用SIMP、渐进结构优化方法实现结构的拓扑优化。(A variety of MATLAB topological optimization procedures are included, and the topology optimization of the structure is realized by using SIMP and progressive structural optimization.)

多次改进的seis系列传统正演源程序seis88，仅供参考。(for ray tracing use.)

说明：  石崇老师编的PFC建立不规则边坡模型的代码(Code for establishing irregular slope model by PFC compiled by Shi Chong)

利用相场晶体模型，计算枝晶生长等。标记为相场晶体模型。(Dendrite growth is calculated by phase field crystal model. It is labeled as phase field crystal model.)

说明：  根绝ISO16281 利用python编写的圆柱滚子轴承刚度计算程序(This program uses ISO 16281 to evaluate the stiffness matrix of hylinder Roller Bearing, which based on Python.)

提取中尺度WRF模式指定高度处的风向时程(To extract time series of wind direction at specific height)