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J2流动理论加上破坏失效判据的程序，用于ABAQUS中的vumat程序，功能模拟加载到失效破坏的过程(J2 flow theory coupled with damage failure criteria of the program for the vumat ABAQUS program, functional simulation load to failure of the process of destruction)

气液平衡数据进行NRTL参数最小二乘法拟合(VLE NRTL fitting)

符号积分法，有中文注释，大家试试，供参考学习~(Symbolic integration, notes in Chinese, we try, for reference to learn ~)

粉土的阻尼比拟合程序。拟合模型选择Davidenkov模型。(The silt damping match the proper procedure. The Fitting Model Davidenkov model.)

递归神经网络-实时学习训练算法代码，亲测可用，简洁无误，容易上手。( Recursive neural network- real-time learning training algorithm code, pro-test available, simple and correct, easy to use.)

说明：  数学建模工具箱 有丰富的数学建模模型，全部用matlab语言编写(Mathematical Modeling Toolbox)

说明：  代码为偏最小二乘法计算过程的代码，主要部分都有中文解释(Code for the calculation process of partial least squares method)

包括回归分析和概率统计，有借鉴意义哦，基于chebyshev的水声信号分析。( Including regression analysis and probability and statistics, There are reference Oh, Based chebyshev underwater acoustic signal analysis.)

先通过emd进行分解，然后求出边际谱，进行分析(First, the EMD is decomposed, and then the marginal spectrum is obtained)

基于互相关分析的时延估计算法；基于互相关分析的时延估计算法(cross-correlation analysis for time delay calculation)