[He, Yan; Hong, Changshou; Wang, Hong; Zhao, Lingjuan; Yu, Shengding; Lei, Bo] Univ South China, Sch Environm Resource & Safety Engineer, Hengyang 421001, Peoples R China.
[Cai, Ziqi] Univ Paris Cite, Inst Phys Globe Paris, CNRS, F-75005 Paris, France.
[Cai, Ziqi] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Dept Nucl Sci & Technol, Xian 710049, Peoples R China.
[Huang, Li] Univ South China, Sch Econ Management & Law, Hengyang 421001, Peoples R China.