根据时域信号提取波峰波谷及雨流计数法分析(it outputs a vector containing the peaks and valleys from a given timeseries (input))

用于检测微弱信号的Duffing系统，这是我的毕业设计一部分，因为我做的时候也曾求取过很多资料，但是并没有找到，因此在我完成之后，上传这个代码，希望这个能帮助别人。 里面还有后续做的GUI界面实现的Duffing振子检测功能，可检测信号幅值和频率。(The Duffing system for detecting weak signals, this is part of my graduation project, because I also asked for a lot of info

基于中国铁路工程抗震设计规范的耐震时程曲线的优化程序，抗震工程(Based on the code for seismic design of Railway Engineering in China, the main program for the optimization of time history curve of earthquake resistance, and the subsequent upload of call function)

nonlinear 3d fnite element method