1. Dalian University of Technology, Dalian, China, Dec. 2, 2019. 
   
2. The University of Tokyo, Tokyo, Japan, Sep. 29, 2019. 
3. Central South University, Changsha, China, Nov. 26, 2019
4. Shandong University, Jinan, China, April 11, 2019
5. Sichuan University of Science and Engineering, Zigong, China, July 3, 2018 
6. Xihua University, Chengdu, China, July 2, 2018 
7. Sichuan Academy of Social Sciences, Chengdu, China, June 25, 2018 
8. Sichuan University, Chengdu, China,  June 25, 2018 
9. Shaanxi Normal University, Xi’an, Shannxi, China, June 14, 2018 
10. Northwest A&F University, Yangling, Shannxi, China, June 12, 2018 
11. Sichuan University, Chengdu, China, March 14, 2018 
12. Sun Yat-sen University, Guangzhou, China, Dec. 28, 2015
13. Hohai University, Nanjing, China, Nov. 4, 2015
14. East China University of Science and Technology, Shanghai, China, Apr. 18, 2015