About the Authors

Li Liu

Affiliation School of Electronics and Information System, Tianjin University, Tianjin, People’s Republic of China

Yongxin Han

Affiliation School of Electronics and Information System, Tianjin University, Tianjin, People’s Republic of China

Mingwu Jin

mingwu@uta.edu

Affiliation Department of Physics, University of Texas Arlington, Arlington, Texas, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: LL MJ. Data curation: LL MJ. Formal analysis: LL YH MJ. Funding acquisition: MJ. Investigation: LL YH MJ. Methodology: LL MJ. Project administration: MJ. Software: LL YH MJ. Supervision: LL MJ. Validation: LL YH MJ. Visualization: LL YH MJ. Writing – original draft: LL MJ. Writing – review & editing: LL MJ.