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说明：  Unet实现语义分割，对于初学在帮助很大(Unet realizes semantic segmentation, which is very helpful for beginners)

以前的手机泡泡堂游戏Java源码，虽然现在都Android了，不过多学习一些以前的JAva经典游戏，对编写Android游戏也是有相当大帮助的。本代码来自台湾的JAva高手写的，参考不错。

Particle swarm optimization

对函数u = exp(sin(x))，使用谱方法四阶有限微分逼近，查看其收敛性(For function u=exp(sin(x)), the fourth-order finite differential approximation by spectral method is used to check its convergence.)

说明：  Qt5开发的聊天小程序，初学者可以学习一下源码，这个是朋友给我的，我不确定是否侵犯到作业权益，如果需要可以联系我删除掉(Qt5 development of chat small procedures, beginners can learn the source code, this is a friend to me, I am not sure whether infringement of the rights and interests of homework, if necessary, you can contact me to delete)

基于hill本构模型和各向同性强化的MMC 伤害准则的vumat实现(hill yield+isotropic hardening+MMC damage vumat)

说明：  该书于2017年2月由机械工业出版社正式出版,凝聚了徐政教授和近20名团队成员多年来的心血.第二版在第一版的基础上,有了较大篇幅的扩充,在系统性和完整性方面得到了加强,符号和术语也得到了进一步规范.该书系统讲述了柔性直流输电的理论和应用.内容包括柔性直流输电系统的特点和应用,(The book was officially published by the Machinery Industry Press in February 2017, and it has gathered the hard work of Professor Xu Zheng and nearly 20 team members for many years. The second edition has a larger expansion on the basis of the first edition. The system and integrity have been strengthened, and the symbols and terminology have been further standardized. The book system describes the theory and application of flexible DC transmission. The content includes the characteristics and applications of flexible DC transmission systems.)

配运筹学 第三版 清华大学出版社 02-With the third edition of Operations Research, Tsinghua University Press 02

说明：  根据一篇论文实现的，基于SNR的DCT域音频水印嵌入算法的matlab代码实现，包括了提取水印、几种音频攻击方式、相似性检验的m代码。(According to a paper, realizing the matlab code of DCT domain audio watermark embedding algorithm based on SNR , excluding M code of extracting watermark, several audio attack modes, and similarity test.)

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