利用离散偶极炬算法计算不同形状粒子的电磁波散射特性-DDSCAT, a Fortran code for calculating scattering and absorption of light by irregular particles, has been jointly developed by Bruce T. Draine (Dept. of Astrophysical Sciences, Princeton University) and Piotr J. Flatau (Scr

A context-aware system is one that gracefully adapts to user environment changes, rendering its applications/services more personalized. Location has been long considered as the most important context and numerous Location Based Services have b