Yu, Juan
Gan, Mi
Ni, Shaoquan
Chen, Dingjun
Funding for this research was provided by:
Nature Science Foundation of China (71403225)
Fundamental Research Funds for the Central Universities (SWJTU12CX114)
Soft science foundation of Sichuan province STA of China (2014ZR0019 and no. 2015ZR0141)
Sichuan province cyclic economy research program (XHJJ-1411)