About the Authors

Wei Yi

Affiliation Department of Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, China

Qing Tian

Affiliation Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

Zhipeng Dai

Affiliation Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

Xiaohu Liu

xhliu@mail.hust.edu.cn

Affiliation Department of Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZD. Performed the experiments: QT. Analyzed the data: WY XL. Contributed reagents/materials/analysis tools: WY XL. Wrote the paper: WY XL.