1. Department of Marine Engineering, Dalian Maritime University, Dalian, Liaoning, China
2. School of Computer Science and Technology, Department of Transportation, Equipment and Ocean Engineering, Dalian University of Technology, Dalian, Liaoning, China, Dalian Maritime University, Dalian, Liaoning, China
3. Department of Marine Engineering, Beacon Center for study of evolution in action, Dalian Maritime University, Dalian, Liaoning, China, University of Michigan, Ann Arbor, Ann Arbor, Michigan, America