第28章 使用DAO操作数据库

用matlab语言来简洁的实现在静态负载下符合最小化原理的拓扑优化。总共只需要输入99行代码，包括优化程序和有限元分析子程序。这99行代码中，其中36行为主程序，12行为基于最优控制器的优化程序，16行为敏度过滤分析，其余35行代码作为有限元分析。(MATLAB language is used to concisely implement topology optimization based on minimization principle under static load. A total of 99 lines of code are required, including the optimizer and the finite element analysis subroutine. In these 99 lines of code, 36 behavior main programs, 12 behavior based on optimal controller, 16 behavior sensitivity filtering analysis, and the rest 35 lines as finite element analysis.)

一种分形维数的计算方法，一种分形维数的计算方法(A fractal dimension method, a fractal dimension calculation)

说明：  本资料仅用于COMSOL爱好者学习，切勿传播，本软件提供强大的多物理场分析。(This information is only for COMSOL enthusiasts to learn, do not disseminate, this software provides a powerful multi-physical field analysis.)

产生一维多重分形，以p-model为原理，所得多重分形时间序列具有已知的多重分形谱和奇异性强度。(product fractals)

说明：  Fractal using DCT transform

用分形插值算法生成云和山--《分形算法于程序设计》光盘(using fractal interpolation algorithm for generating clouds and the mountains-- "fractal algorithm in the program design" CD)

说明：  描述颗粒形貌边界的分形维数程序。其中4.bmp是需要被分析的图片名称。使用者自行修改。(Description of particle morphology of the border fractal dimension of the procedure. 4.bmp which need to be analyzed is the name of the picture. Users to make its own decisions.)

Grass文件夹下为分形草的程序源代码，程序运行后，只需要按空格键就可以随机产生不同的分形草图形(Grass folder for grass fractal source code, the program running, just a space bar can be different randomly generated fractal graphics grass)

分形维数计算程序,含有完成代码和计算说明(Fractal calculation)

采用结构函数法计算材料界面曲线的分形维数，对应的数据应当为结合界面曲线的.jpg格式，各相关参数的介绍在程序内均有注明。(The fractal dimension of the interface curve of the material interface is calculated by the structural function method. The corresponding data should be in the .jpg format of the interface curve. The relevant parameters are described in the procedure.)