upf11

dv-hop算法的matlab仿真编码 (dv-hop algorithm matlab simulation code)

This VI illustrates how to acquire sound samples continuously with the use of a microphone attached to the sound card.

根据多层编码遗传算法原理，在matlab中编程实现基于多层编码遗传算法的车间调度算法(According to the principle of multi-coded genetic algorithm in matlab programming shop scheduling algorithm based on multi-coding genetic algorithm)

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．)

说明：  决策树(Decision Tree）是在已知各种情况发生概率的基础上，通过构成决策树来求取净现值的期望值大于等于零的概率，评价项目风险，判断其可行性的决策分析方法，是直观运用概率分析的一种图解法。由于这种决策分支画成图形很像一棵树的枝干，故称决策树。在机器学习中，决策树是一个预测模型，他代表的是对象属性与对象值之间的一种映射关系。Entropy = 系统的凌乱程度，使用算法ID3, C4.5和C5.0生成树算法使用熵。这一度量是基于信息学理论中熵的概念。 决策树是一种树形结构，其中每个内部节点表示一个属性上的测试，每个分支代表一个测试输出，每个叶节点代表一种类别。 分类树（决策树）是一种十分常用的分类方法。它是一种监督学习，所谓监督学习就是给定一堆样本，每个样本都有一组属性和一个类别，这些类别是事先确定的，那么通过学习得到一个分类器，这个分类器能够对新出现的对象给出正确的分类。这样的机器学习就被称之为监督学习。(Decision tree is a decision analysis method based on the known probability of occurrence of various situations, which can calculate the probability that the expected value of net present value is greater than or equal to zero, evaluate the project risk and judge its feasibility by constructing a decision tree. It is a graphic method of intuitively using probability analysis. Because this kind of decision branch is drawn as a graph, it is very similar to the branch of a tree, so it is called decision tree. In machine learning, decision tree is a prediction model, which represents a mapping relationship between object attributes and object values. Entropy = the disorder degree of the system, using algorithms ID3, C4.5 and C5.0, spanning tree algorithm using entropy. This measure is based on the concept of entropy in information theory.)

matlab的一些插值和拟合算法， 包括最小二乘法等(matlab some interpolation and fitting algorithm, including the least squares, etc.)

digital modulation technique QAM

计算IEEE-6节点系统牛顿拉夫逊潮流计算，通用的算法.(Calculation of the IEEE-6 node system Newton Ralph Xun power flow calculation, the general algorithm. )

seismic response analysis of MDOF structures using wilson-theta method

本MATLAB仿真是针对光伏最大功率点跟踪的仿真 采用的是模糊PID算法建立仿真模块，供新手参考(The MATLAB simulation for photovoltaic maximum power point tracking simulation is used to establish fuzzy PID algorithm simulation module for the novice reference)