[1] Sichuan Technol & Business Coll, Dept Alcohol & Food Engn, Chengdu, Sichuan, Peoples R China
[2] 8 Juyuan Sect,Tianfu Ave, Dujiangyan 611830, Sichuan, Peoples R China
[3] Sichuan Technol & Business Coll, Dept Econ Management, Chengdu, Sichuan, Peoples R China
[4] Sino Amer Searle Res Ctr, Berkeley, CA USA
[5] Sino Amer Searle Res Ctr, Beijing, Peoples R China
[6] China Univ Geosci, Room 608, Beijing, Peoples R China
[7] Peking Univ, Teacher Teaching Dev Ctr, Room 415, Beijing, Peoples R China