1. State Key Laboratory for Reliability and Intelligence of Electrical Equipment, Engineering Research Center of Ministry of Education for Intelligent Rehabilitation Device and Detection Technology, Hebei Key Laboratory of Smart Sensing and Human-Robot Interaction, School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
2. Business School, University of Saint Thomas of Mozambique, Av. Ahmed Sekou Touré n.610 RC, Maputo City 1106, Mozambique
3. School of Mechanical Engineering, University of Jinan, Jinan 250022, China