1. School of Highway, Chang’an Univ., Middle-Section of Nan’er Huan Rd., P.O. Box 710064, Xi’an, Shaanxi, China.
2. Doctor and Associate Professor, Chang’an Univ., China International Engineering Consulting Corporation Expert Library Expert, Middle Section of South Second Ring Rd., P.O. Box 710064, Xi’an, Shaanxi, China.