| Roberto | Baca Arroyo | Instituto Politécnico Nacional | Mexico | worldtopscientists.com | worldtopscientists.com |
| Rocco | De Vitis | Fondazione Policlinico A. Gemelli IRCCS Rome | Italy | worldtopscientists.com | worldtopscientists.com |
| Rui | Chen | National Space Science Center, Chinese Academy of Sciences | China | worldtopscientists.com | worldtopscientists.com |
| Sabre | Kais | North Carolina State University | United States | worldtopscientists.com | worldtopscientists.com |
| Sai | Li | ZaoZhuang University | China | worldtopscientists.com | worldtopscientists.com |
| Samer | Younes | Department of Pharmacy, Tartous University, Syria | Syria | worldtopscientists.com | worldtopscientists.com |
| Sangjae | Lee | Sejong University | South Korea | worldtopscientists.com | worldtopscientists.com |
| Satyen Kumar | Das | Indian Oil Corporation Limited, R&D Centre, Faridabad | India | worldtopscientists.com | worldtopscientists.com |
| Sepideh | Azizi | University of Illinois Urbana Champaign | United States | worldtopscientists.com | worldtopscientists.com |
| Shubham | Rai | Institute of engineering and technology, Lucknow | India | worldtopscientists.com | worldtopscientists.com |
| Si | Chen | Tongji University | China | worldtopscientists.com | worldtopscientists.com |
| Solomon | Kenea | Department Of Soil Resources And Watershed Management, Wollega University, Shambu Campus, Ethiopia | Ethiopia | worldtopscientists.com | worldtopscientists.com |
| Songyi | Lin | Dalian Polytechnic University | China | worldtopscientists.com | worldtopscientists.com |
| SOONMIN | HO | INTI International University | Malaysia | | |
| Souhail | Dhouib | Higher Institute of Industrial Management, University of Sfax | Tunisia | worldtopscientists.com | worldtopscientists.com |
| Sudipta | Chattopadhyay | Mizorm University (A Central University, Govt of India)) | India | worldtopscientists.com | worldtopscientists.com |
| Sumathi | Jones | Sree Balaji Dental College and Hospital | India | | |
| t | t | t | Afghanistan | | |
| Wei | Li | jiangsu university | China | worldtopscientists.com | worldtopscientists.com |
| Weigang | Hou | School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications | China | worldtopscientists.com | worldtopscientists.com |