python语言写的离散增量分类器，自己写的，完全可用！-python language written in discrete incremental classifier, write your own, completely free!

分子模拟软件fDynamo v2.2 的源程序 - ! ! fDynamo v2.2- a program for performing molecular simulations. ! Copyright (C) 2005-2007 Martin J. Field ! !=========================================================================

用C语言程序来仿真电磁波在自由空间中的传播。-Using C language program to simulate electromagnetic wave propagation in free space.

一些关于微生物燃料电池的英文文献，在网上不能免费下载。-Some of the English literature on microbial fuel cells can not be downloaded free of charge online.