GeoLite2-City.mmdb

主流的CFD软件之一 主要用来计算复杂几何形状的流动和换热问题 其数学模型的组成主要是以纳维-斯托克斯方程与各种湍流模型为主体 再加上多相流模型、热辐射模型、化学组分的输运、燃烧与化学反应流模型等. 大多数附加的模型是在主体方程组上补充一些附加源项、附加输运方程与关系式. (One of the major mainstream CFD software used to calculate the complex geometry of the flow and heat transfer mathematical model of the problem are mainly composed of Navier- Stokes equations with various turbulence models as the main coupled multiphase flow model, radiation model, the chemical composition of the transport, combustion and chemical reaction flow model. most of the additional model is on the main equations to add some additional source term, additional transport equation and the relationship.)

一款猫抓老鼠的游戏，有源码和运行程序，供大家学习！-A cat and mouse game, with source code and run the program for them to learn!

找出只出现一次的数字，其他数字均出现了2次，时间空间尽量少(Identify only appears once, while other figures have appeared two times to minimize time and space)

STM32Fxxx DSP Library

系统清理程序，可以清理系统中的垃圾文件。例如IE的缓存，系统的缓冲区等

Ectouch手机端网购商城系统PHP版，用来搭建供手机浏览查看的电子商务网站，类似淘宝手机客户端，本全面兼容php5.6+，ectouch编译更新日志： 　　1、修改数据库连接底层为mysqli。 　　2、优化安装过程的体验, 官方的太粗糙。 　　3、修复所有php5.6下的报错。 　　4、测试过程通过。

说明：  ECG code for QRS detection

计算两个时间序列X和Y的传递熵，x2y是X到Y的传递熵，y2x是Y到X的传递熵(calculate transfer entropy)

LM1875芯片资料。有需要的朋友请下载-LM1875 chip information. Friend in need, please download

LDPC译码在对数似然比的译码算法，基于因子图的BP算法(Decoding algorithm of LDPC decoding in log likelihood ratio)