**Author details**

Guangzhao Qin1 and Ming Hu1,2\*

\*Address all correspondence to: hum@ghi.rwth-aachen.de

1 Institute of Mineral Engineering, Division of Materials Science and Engineering, Faculty of Georesources and Materials Engineering, RWTH Aachen University, Aachen, Germany

2 Aachen Institute for Advanced Study in Computational Engineering Science (AICES), RWTH Aachen University, Aachen, Germany
