14 致谢

南京大学徐雯峤、河北地质大学杨克基参与了本手册的修订工作，在此表示感谢。

感谢 GMT中文社区 开源的网站及手册代码，对本站的建设提供了很大帮助。

感谢 YADE , MatDEM , DICE2D , PFC2D/3D, TRUBAL, RICEBAL提供的离散元原理及代码开发方面的知识。

Thanks to YADE, MatDEM, DICE2D, PFC2D/3D, TRUBAL, RICEBAL, gtkmm, PLplot, Cairo and all the people who helped me.

Especially, we thank Julia Morgan for generously sharing her discrete element code RICEBAL (v. 5.4, modified from Peter Cundall’s TRUBAL v. 1.51), along with her post-processing scripts and algorithms, which have been used to process and display the model outputs presented in this website. Further details about these methods can be found in the following reference: Morgan (2015) (DOI: 10.1002/2014JB011455).

We would like to thank Thomas Fournier provided an open source MATLAB code for calculating stress and strain in his homepage hosted on the website of rice university, Chun LIU and Qian HUANG for discussions on development of ZDEM.