(1. Institutes of Science and Development, Chinese Academy of Sciences, Beijing 100190, China; 2. School of Public Policy and Management, University of Chinese Academy of Sciences, Beijing 100049, China; 3. Academic Divisions of the Chinese Academy of Sciences, Beijing 100049, China; 4. School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100049, China; 5. National Science Library, Chinese Academy of Sciences, Beijing 100190, China)