Prof. Xinyuan Liu from Southern University of Science and Technology visited our group Date:May 1, 2017 Read times: Dr. Xinyuan Liu, visited our group and college of chemistry on Apr. 21, 2017, and gave us a wonderful lecture entitled with Collaborative catalyzed research free radicals in olefins asymmetric reactions. PreNews: Prof. Ying Cheng from Beijing Normal University visited our group NextNews: Prof. Jared Thomas Shaw and Prof. Annaliese Franz from University of California, Davis visited our group