Peking University, Nanjing University, Xiamen University, Fudan University, China University of Science and Technology, Jilin University, Zhejiang University, Shandong University, Nankai University, Fuzhou University, Beijing Normal University, Tsinghua University, East China Normal University, Wuhan University, Shaanxi Normal University, Sichuan University, Sun Yat-sen University, beijing university of chemical technology, Henan Normal University, Dalian University of Technology.