1. School of Chemical Engineering and Technology; Xi'an Jiao Tong University; Xi'an, 710049 China
2. LIWET, Department of Industrial Biological Sciences; Ghent University; Campus Kortrijk, Graaf Karel de Goedelaan 5 B-8500, Kortrijk Belgium
3. BIOMATH, Department of Mathematical Modelling, Statistics and Bioinformatics; Ghent University; Coupure Links 653 B-9000 Gent, Belgium
4. School of Human Settlement and Civil Engineering; Xi'an Jiao Tong University; Xi'an, 710049 China