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说明：  介绍堆肥如何做，尤其是高温堆肥的指标参数的变化介绍(How to do composting, especially the change of index parameters of high temperature composting)

基于遗传算法实现最短路径规划，动态优化路径信息，效率高(Realize shortest path planning based on genetic algorithm, dynamically optimize path information, and high efficiency)

Vc++读写csv文件的类，这个资源是读写CSV文件的非常实用的类。方法写得非常好，代码也写得非常简洁，很合适在实际项目中使用。经本人测试，只要把上面的代码CSVOperator.h、CSVOperator.cpp和StringParser.h拷贝到项目中，就可以直接使用。在CSV_OP.cpp文件中，main方法里面有详细的读取文件的方法。读取的是config.csv这个文件。(Class Vc++ read and write csv file, this resource is to read and write CSV file very useful class. The method is very good, the code is written in a very simple, very suitable for use in the actual project. I tested, above code CSVOperator.h the, CSVOperator.cpp and StringParser.h copy to the project, can be used directly. In the CSV_OP.cpp file, the main method inside the detailed method of reading the file. Read this file config.csv.)

单级倒立摆LQR控制仿真 最优控制理论主要通过对性能的优化寻找可以使目标极小的控制器(Inverted Pendulum Control Simulation of LQR optimal control theory, mainly through the optimization of the performance objectives can find a very small controller)

说明：  该文基于模型预测控制理论， 提出一种考虑多时空尺度协调的风电集群有功分层预测控制方法。 该方法将风电集群在空间尺度上分为三层控制层，将超短期风电功率预测值在时间尺度上逐层细化，并对各层滚动优化环节进行了优化建模。 仿真分析中通过与常用有功分配方法对比， 结果表明文中所提方法在保证系统安全运行和满足集群计划的同时，能够提高风电消纳能力，合理利用风能资源和分配集群内风电功率。(Based on the model predictive control theory, this paper proposes a wind power cluster active layered predictive control method that considers multi-temporal scale coordination. The method divides the wind power cluster into three layers on the spatial scale, and predicts the ultra-short-term wind power prediction value on a time scale, and optimizes the rolling optimization of each layer. Compared with the commonly used active power allocation method in the simulation analysis, the results show that the proposed method can improve the wind power consumption capacity, rationally utilize the wind energy resources and allocate the wind power in the cluster while ensuring the safe operation of the system and meeting the cluster plan.)

说明：  车辆跟驰模型,包括最佳速度模型，基本的车辆跟驰模型(car following models)

php phonebook used php and mysql

双重差分估计 双重差分模型（difference-in-difference，DID）近年来多用于计量经济学中对于公共政策或项目实施效果 的定量评估。 通常大范围的公共政策有别于普通科研性研究，难以保证对于政策实施组和对照组在样本分配上的完全随机。非随机分配政策实施组和对照组的试验称为自然试验（naturaltrial），此类试验存在较显著的特点，即不同组间样本在政策实施前可能存在事前差异，仅通过单一前后对比或横向对比的分析方法会忽略这种差异，继而导致对政策实施效果的有偏估计。(Quantitative evaluation of policy or project implementation effect. Generally, a wide range of public policies is different from general scientific research, and it is difficult to ensure that the sample allocation for the policy implementation group and the control group is completely random. The non-randomly assigned policy implementation group and the control group are called natural trials, which have significant characteristics, i.e. there may be prior differences between the different groups of samples before the implementation of the policy, and this difference will be ignored only through a single pre-and post-comparison or horizontal comparison analysis method, which leads to the policy. Biased estimation of implementation)

LDPC码的编译码原理，详细完整，是了解LDPC码基础知识的很好的材料(LDPC code encoding and decoding principles, detailed and complete, is to understand the basics of LDPC codes of good material)

说明：  使用遗传算法等对ｋ均值聚类进行优化，使ｋ均值聚类效果有所提高(Use genetic algorithm to optimize K-means clustering, so that the effect of K-means clustering is improved)