Beijing University of Civil Engineering and Architecture, Beijing University of Civil Engineering and Architecture, Beijing University of Civil Engineering and Architecture, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN

University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, China University of Mining and Technology (CUMT) - Beijing Key Laboratory for Precise Mining of Inter grown Energy and Resources, University of Science and Technology of China (USTC) - National Synchrotron Radiation Laboratory Research Center, North University of China, Henan Polytechnic University and Beijing University of Civil Engineering and Architecture