mian raytracing

缩减有限元模型自由度，以便提高计算效率和计算精度，确保结果正确。(Reduce the degree of freedom of the finite element model, so as to improve the efficiency and accuracy of calculation, and ensure the correct result.)

用vb变得密码程序，请帮助揭开，THANKS-Becomes the password using vb program, to help open, THANKS

说明：  粒子群算法整定PID参数,matlab程序。有研究自抗扰控制的可以一起沟通学习。(particle swarm algorithm tuning pid parameters, matlab program. There are studies on anti-disturbance control that can communicate and learn together.)

推箱子游戏,直得对游戏开发的朋友学习或参考.-Sokoban games, straight to the game developers have a friend learning or reference.

说明：  电力拖动系统及仿真的课件，直流调速，交流调速，同步电机，异步电机(Courseware of electric drive system and simulation)

实现用vc++对sql server 数据库的管理 常用sql语句的使用-Achieved with the vc++ on the sql server database management used to use sql statements

内含纯DOS,WIN32控制台和WIN32 GUI三个版本.它们生成的备份文件可以在任何版本中使用. WIN32 GUI版本暂使用备份功能(其他模块也都已全部写好,全是完整的,现在仅开启备份功能),如果想使用还原替换和比较功能,可自行打开调用的开关或加几句调用的代码就可以了-Containing pure DOS, WIN32, and WIN32 GUI console in three versions. They generated backup files can be used in any version. WIN32 GUI version temporarily use the backup function (all other modules have also written, is complete, now only open the backup feature), if you want to use to restore the replacement and comparison of features, can open the call a few of the switches or the code can call the

20种常用的PS处理 20种常用的PS处理-dsafasdfdsafasdfdsafasdfdsafasdf

远程升级boot代码跳转部分，GPRS协议部分暂时不用理会，关键是BootLoader代码才是跳转部分，实现flash中A区，B区的切换(Remote upgrading boot code jump part, GPRS protocol part temporarily ignored, the key is BootLoader code is the jump part, realize Flash in A area, B area switch.)

can do the can communication