The 31th "Challenge Cup" Technology Innovation Competition came to an end on April 13. SOE sent 12 entries competing for the “Challenge Cup”.

Among all entries submitted, one work about the aerosol flow control system won the second prize. Four other pieces received the third prize. The main topics of these projects included the inhibition of climate change on the microbial gene composition in C3 plant soil, pollution prevention and a control scene analysis model in the coastal area of Zhejiang province, adsorption and desorption of BDE-47 on minerals and organics, and time and space distribution change of grassland in Maduo County.