About the Authors

Xiangxi Du

Roles Resources, Writing – review & editing

rocket4@gmail.com

Affiliation School of Mechanical Engineering, Xi'an Jiao Tong University, Xi'an City, China

Yanhua Sun

Roles Investigation, Methodology, Writing – original draft

Affiliation School of Mechanical Engineering, Xi'an Jiao Tong University, Xi'an City, China

Competing Interests

The authors have declared that no competing interests exist.