Guojun Yu
Merchant Marine college, Shanghai Maritime University, Shanghai 201306, P.R. China
China

Cong Liu
Merchant Marine college, Shanghai Maritime University, Shanghai 201306, P.R. China
China

Lizhi Zhang
Merchant Marine college, Shanghai Maritime University, Shanghai 201306, P.R. China
China

Lichao Fang
Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
United States