1. Ph.D. Candidate, Dept. of Architecture, School of Mechanics and Civil Engineering, China Univ. of Mining and Technology, Beijing, China.
2. Postdoctoral, State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
3. Senior Engineer, 2nd Engineering Co. Ltd. of China Railway Construction Electrification Bureau Group, Shanxi, China.
4. Intermediate Engineer, Shanxi Gongxin Security Technology Co., Shanxi, China.