Speaker's profile: Wang Ruiqi, professor and PhD supervisor of the Department of Mathematics, Shanghai University. He has long been engaged in research on nonlinear dynamics and computational systems biology. He has chaired many National Natural Science Funds, Shanghai Education Commission, and Science and Technology Commission Funds. He has published two monographs and published more than 50 papers in important academic journals at home and abroad. Visited and worked at a number of universities including the University of Tokyo, Japan.