He Yulong is a Professor in the Faculty of Geosciences and Environmental Engineering, at Southwest Jiaotong University, China. His research focuses on rail transit environmental protection. He has ...mehr sehenHe Yulong is a Professor in the Faculty of Geosciences and Environmental Engineering, at Southwest Jiaotong University, China. His research focuses on rail transit environmental protection. He has published three monographs and more than 50 papers.weniger sehen