fengji2

雷达回波信号的FFT处理，并画出二维幅度-频率图像(Radar echo signal FFT processing)

基于STC15F开发的航模启动起落架低气压保护程序(Low pressure protection program for landing gear starting and landing gear based on STC15F)

genetic algorithm, back propagation , neural network,

说明：  视频流嗅探下载合并为一体的小工具，适合各类型视频(Video Streaming Sniffer Downloads as a Kit)

pfc离散元 适合初学者学习的代码--指定接触(Pfc Discrete Element Code for Beginners to Learn--Specified Contact)

计算罕遇事件概率的分裂重要抽样法（白噪声算例）(Matlab code of importance splitting for rare event simulation)

说明：  使用用户定义函数（UDF）将液态金属的粘度建模为温度的函数(User Defined Function (UDF) is used to model the viscosity of liquid metals as a function of temperature.)

钟面上的时针和分针之间的夹角总是在 0 ～180之间 ( 包括 0 和180 ) 。举例来说，在十二点的时候两针之间的夹角为 0 ，而在六点的时候夹角为180 ，在三点的时候为90 。本题要解决的是计算 12:00 到 11:59 之间任意一个时间的夹角。(The angle between the hour and minute hands of the clock face is always between 0 to 180 (including 0 and 180). For example, twelve o' clock, when the angle between the two pin 0, in the six o' clock when the angle is 180, three points for 90. This question must be resolved are the angle of the calculation of 12:00 to 11:59 any one time.)

auto copy (simple dos only)

java写的一个可收发EMAIL的类.可用其中的方法直接收发EMAIL.-wrote a java can send and receive e-mail and the like. The method can be used directly TX EMAIL.