Hong Ji, born in 1972 in Ningshan, Shaanxi Province, China, Doctor of Engineering, Professor, Doctoral Supervisor and Vice President of Lanzhou University of Science and Technology. He is the director of Key Laboratory of Special Pumps, Valves and Flow Control Systems of the Ministry of Education. Standing member of the Chinese Mechanical Engineering Society Fluid Transmission and Control Branch, vice chairman of the Hydraulic Committee; Hydraulics and Pneumatics editorial board. His research interests include modern hydraulic components and hydraulic technology of engineering machinery. He has presided over and completed 4 youth and surface projects of the National Natural Science Foundation of China, 1 project of the National Key Research and Development Program (excellent completion), and more than 30 enterprise technology development projects. He has published more than 90 papers, been authorized more than 30 invention patents, and won 3 provincial science and technology awards.