1. School of Logistics, Beijing Wuzi University, Beijing 101149, China
2. School of Business, Beijing Wuzi University, Beijing 101149, China
3. Institute of Service Industries and Management, Minghsin University of Science and Technology, Hsinchu 304, Taiwan
4. Zhongshan Institute, University of Electronic Science and Technology, Zhongshan, China
5. Research Center for Environment and Sustainable Development of China Civil Aviation, Civil Aviation University of China, Tianjin, China