Dr. Yu Xie, Associate Professor, Youth Elite Scholar of South China Normal University. Research directions: theoretical research on photodegradation of antibiotics, theoretical development of semi-classical dynamics methods, machine learning prediction of dynamics behavior, and so on. He obtained his bachelor degree (2002-2006) and doctor degree from Jilin University. He has been working at Changchun Institute of Applied Chemistry, Chinese Academy of Sciences during his postgraduate period, and visited Frankfurt University in Germany for research. He presided over one project of National Natural Science Foundation Youth Fund, one project of Young Talents of South China Normal University and one project of Qingdao Post-doctoral Foundation, and participated in several projects of National Natural Science Foundation. He has published more than 20 SCI papers.