作者机构:[1]Energy and Environmental Research Centre, North China Electric Power University, Beijing 102206, P. R. China, [2]College of Environment and Resources, Jilin University, Changchun 130012, P. R. China
相关基金:Supported by the National Natural Science Foundation of China(No.50879025) and the Scientific Start-up Fund from North China Electric Power University, China(No.X60218).