Personal profiles<br> Name: Zhining Jia (Z. N. Jia)  Gender: Male  Date of birth: 1973.11.21<br> Education background: D.E. (Doctor of engineering)<br> Specialty: Machinery manufacturing and automation<br> Graduated from university: Yanshan university<br> Work unit: Chengde Petroleum College, Hebei China  Zip code: 067000<br> Corresponding phone: +86 15831439791<br> E-mail: ysujia@163.com<br><br>Research field (Main)<br> Modification and reinforcement of polymer-based composite material<br> Tribilogical properties of polymer-based composite and metal matrix<br> The mechanical design and the analysis of engineering structures