Bikram Koirala, University of Antwerp, Belgium; Behnood Rasti, Helmholtz Institute Freiberg for Resource Technology, Germany; Zakaria Bnoulkacem, University of Antwerp, Belgium; Andréa de Lima Ribeiro, Yuleika Madriz, Erik Herrmann, Helmholtz Institute Freiberg for Resource Technology, Germany; Arthur Gestels, Thomas De Kerf, Koen Janssens, Gunther Steenackers, University of Antwerp, Belgium; Richard Gloaguen, Helmholtz Institute Freiberg for Resource Technology, Germany; Paul Scheunders, University of Antwerp, Belgium

Jiajun Zheng, Nanchang Institute of Technology, China; Huqing Liang, GMC Building, China; Shaoquan Zhang, Fan Li, Pengfei Lai, Shengqian Wang, Chengzhi Deng, Nanchang Institute of Technology, China

Yun Wang, Shuaikai Shi, Jie Chen, Northwestern Polytechnical University, China

Zimo Yang, Lin Qi, Feng Gao, Junyan Lin, Ocean University of China, China

Razieh Kaviani Baghbaderani, University of Tennessee, Knoxville, United States; Ying Qu, Beijing Normal University, China; Hairong Qi, University of Tennessee, Knoxville, United States