| Dr | Quanfei | Zhang | School of Economics, Shandong University | China |
| Ms | Rabia | Iftikhar | Xi'an Jiaotong University | China |
| Dr | Rabin | Paul | National Institute of Technology, Silchar | India |
| Mr | Rafael Natalio | Fontana Crespo | Politecnico di Torino | Italy |
| Dr | Raghavendran | Prabakaran | Easwari Engineering College | India |
| Mr | Rahul | Charles C M | COLLEGE OF ENGINEERING MUTTATHARA | India |
| Mr | Raja | Vavekanand | Datalink Research and Technology Lab, Islamkot | Pakistan |
| Prof. Dr | Rajesh | Singh | Uttaranchal University | India |
| Dr | Rajesh | Basnet | Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China | China |
| Ms | Ran | An | Beijing Jiaotong University | China |
| Prof | Ravisankar | Panchumarthy | Vignan Pharmacy College | India |
| Ms | Rawane | Mansour | Université de Perpignan Via Domitia (UPVD), LAMPS | France |
| Assoc. Prof. Dr | Rehab | Hussein | National Research Centre | Egypt |
| Ms | Rehana | Shahin | MMMUT Gorakhpur | India |
| Assist Prof Dr | Rezgar | Hasanzadeh | Kermanshah University of Technology | Iran |
| Assist. Prof. Dr | Rezgar | Hasanzadeh | Kermanshah University of Technology | Iran |
| Prof. Dr | RIANE | Rabah | University of Ibn Khaldoun --Tiaret (Algeria) | Algeria |
| Prof. Dr | RIANE | Rabah | University of Ibn Khaldoun --Tiaret (Algeria) | Algeria |
| Dr | Rida | Lkhluf | Cybercrin | Spain |
| Assist. Prof. Dr | Rizka Ayu | Setyani | Universitas Sebelas Maret | Indonesia |