1. Key Laboratory of
Biomedical Information Engineering of Education Ministry, School of
Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
2. State Key Laboratory for Mechanical Behavior
of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
3. Xi’an University, Xi’an, Shaanxi 710065, P. R. China