Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Solar Thermal
Photovoltaic/Thermal
Photovoltaic
Nano-PCM
Solar Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,176
10,340
0.729
* Total Citation Counts Rankings
Ranking Based On Selection :2
Novel drug delivery systems
Clinical outcomes research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,025
4,264
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :3
Super Green Hydrogen
Sustainable Energy
Superoxide Ion
Green Engineering
Deep Eutectic Solvents
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,180
8,574
0.767
* Total Citation Counts Rankings
Ranking Based On Selection :4
Energy and Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,015
3,362
0.479
* Total Citation Counts Rankings
Ranking Based On Selection :5
Lipid and Lipoprotein Disorders
Familial hypercholesterolemia
Cardiovascular Disease risk factors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,945
4,882
0.703
* Total Citation Counts Rankings
Ranking Based On Selection :6
Mixed-valent iron minerals
Magnetite
Advanced Oxidation
Environmental Remediation
Fenton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,527
5,959
0.913
* Total Citation Counts Rankings
Ranking Based On Selection :7
Polymer nanocomposites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,421
3,581
0.661
* Total Citation Counts Rankings
Ranking Based On Selection :8
Vision
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,325
2,275
0.427
* Total Citation Counts Rankings
Ranking Based On Selection :9
Secondary metabolites
Mevalonic acid pathways
essential oil
Irradiated polysaccharides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,532
2,837
0.626
* Total Citation Counts Rankings
Ranking Based On Selection :10
Health Outcomes Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,525
2,885
0.638
* Total Citation Counts Rankings
Ranking Based On Selection :11
HVACR
Energy Renewal.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,296
2,981
0.694
* Total Citation Counts Rankings
Ranking Based On Selection :12
Applied plant molecular breeding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,147
1,308
0.315
* Total Citation Counts Rankings
Ranking Based On Selection :13
medical informatics
medical education
e-learning
m-learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,882
2,289
0.590
* Total Citation Counts Rankings
Ranking Based On Selection :14
Obesity
Inflammation
Metabolism
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,588
1,527
0.426
* Total Citation Counts Rankings
Ranking Based On Selection :15
Helping Others
Second interest
Teaching.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,514
279
0.079
* Total Citation Counts Rankings
Ranking Based On Selection :16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,410
2,568
0.753
* Total Citation Counts Rankings
Ranking Based On Selection :17
Well testing
EOR
Reservoir Managment and Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,328
1,831
0.550
* Total Citation Counts Rankings
Ranking Based On Selection :18
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,998
1,314
0.438
* Total Citation Counts Rankings
Ranking Based On Selection :19
Clinical medicine
immunology
microbiology
surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,886
834
0.289
* Total Citation Counts Rankings
Ranking Based On Selection :20
Diabetes
Autism
mental health
CNCD
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,803
1,357
0.484
* Total Citation Counts Rankings
Ranking Based On Selection :21
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,694
1,497
0.556
* Total Citation Counts Rankings
Ranking Based On Selection :22
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,435
943
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :23
Liquefaction
Regasification
Process Systems Engineering
Water Harvesting
LNG
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,398
1,854
0.773
* Total Citation Counts Rankings
Ranking Based On Selection :24
Drug safety
Patient education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,341
1,467
0.627
* Total Citation Counts Rankings
Ranking Based On Selection :25
Knowledge Management System
Knowledge Management
Learning Management Systems
Knowledge Economy
IS/ICT investments
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,219
1,417
0.639
Hussein A Kazem
Sohar University
Sohar, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,176
10,340
0.729
Solar Thermal
Photovoltaic/Thermal
Photovoltaic
Nano-PCM
Solar Energy
Alka Ahuja
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,025
4,264
0.355
Maan Hayyan
Muscat University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,180
8,574
0.767
Super Green Hydrogen
Sustainable Energy
Superoxide Ion
Green Engineering
Deep Eutectic Solvents
Sabah Ahmed Abdul Wahab Al Sulaiman
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,015
3,362
0.479
Khalid Al Rasadi
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,945
4,882
0.703
Lipid and Lipoprotein Disorders
Familial hypercholesterolemia
Cardiovascular Disease risk factors
Muhammad Usman
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,527
5,959
0.913
Mixed-valent iron minerals
Magnetite
Advanced Oxidation
Environmental Remediation
Fenton
Aamir Hussain Bhat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,421
3,581
0.661
Barry Winn
Sohar University
Sohar, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,325
2,275
0.427
Mohammad Idrees
Dhofar University
Salalah, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,532
2,837
0.626
Secondary metabolites
Mevalonic acid pathways
essential oil
Irradiated polysaccharides
Ibrahim Al Zakwani
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,525
2,885
0.638
Shahid Ali Khan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,296
2,981
0.694
Hesham Agrama
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,147
1,308
0.315
Ken Masters
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,882
2,289
0.590
Shaikh Mizanoor Rahman
University of Nizwa
Nizwa, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,588
1,527
0.426
Lamk Lamki
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,514
279
0.079
Myo Tay Zar Myint
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,410
2,568
0.753
Ali S Al Bemani Al Bemani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,328
1,831
0.550
Anvar Kacimov
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,998
1,314
0.438
Eugene Johnson
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,886
834
0.289
Mohammad Al Shafaee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,803
1,357
0.484
Syed Abdullah Gilani
University of Nizwa
Nizwa, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,694
1,497
0.556
Faisal Mnif
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,435
943
0.387
Mohd Shariq Khan
Dhofar University
Salalah, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,398
1,854
0.773
Liquefaction
Regasification
Process Systems Engineering
Water Harvesting
LNG
Jimmy Jose
University of Nizwa
Nizwa, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,341
1,467
0.627
Kamla Ali Al Busaidi
Sultan Qaboos University
Muscat, Oman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,219
1,417
0.639
Knowledge Management System
Knowledge Management
Learning Management Systems
Knowledge Economy
IS/ICT investments