About the Authors

Bin Wang

Affiliation Key Laboratory of Advanced Design and Intelligent Computing (Dalian University), Ministry of Education, Dalian, 116622, China

Xiaopeng Wei

Affiliation Key Laboratory of Advanced Design and Intelligent Computing (Dalian University), Ministry of Education, Dalian, 116622, China

Jing Dong

Affiliation Key Laboratory of Advanced Design and Intelligent Computing (Dalian University), Ministry of Education, Dalian, 116622, China

Qiang Zhang

zhangq@dlu.edu.cn

Affiliation Key Laboratory of Advanced Design and Intelligent Computing (Dalian University), Ministry of Education, Dalian, 116622, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XW QZ. Performed the experiments: BW. Analyzed the data: QZ JD. Contributed reagents/materials/analysis tools: BW XW QZ. Wrote the paper: BW QZ.