October 18, 2019, Prof. Qingshan Niu from Shenzhen University visited SMMP for academic exchange visit and made an academic report entitled “Fabrication of thin-film composite membranes with unique 3D surface nano-structures mediated by Noria - polyethyleneimine codeposition”. Nearly 60 teachers and students attended the report meeting, which was hosted by Prof. Yunxia Hu.