World Scientist and University Rankings 2025
Oman Others 358 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 30, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Solar Thermal
Photovoltaic/Thermal
Photovoltaic
Nano-PCM
Solar Energy
Metrics
H-Index
i10 Index
Citation Counts
70
178
15,359
* Total H IndexRankings
Ranking Based On Selection: 2
Novel drug delivery systems
Clinical outcomes research
Metrics
H-Index
i10 Index
Citation Counts
53
116
12,420
* Total H IndexRankings
Ranking Based On Selection: 3
Super Green Hydrogen
Sustainable Energy
Superoxide Ion
Green Engineering
Deep Eutectic Solvents
Metrics
H-Index
i10 Index
Citation Counts
45
84
11,919
* Total H IndexRankings
Ranking Based On Selection: 4
Mixed-valent iron minerals
Magnetite
Advanced Oxidation
Environmental Remediation
Fenton
Metrics
H-Index
i10 Index
Citation Counts
44
84
7,208
* Total H IndexRankings
Ranking Based On Selection: 5
Lipid and Lipoprotein Disorders
Familial hypercholesterolemia
Cardiovascular Disease risk factors
Metrics
H-Index
i10 Index
Citation Counts
43
99
7,496
* Total H IndexRankings
Ranking Based On Selection: 6
Vision
Metrics
H-Index
i10 Index
Citation Counts
43
83
5,513
* Total H IndexRankings
Ranking Based On Selection: 7
Energy and Environment
Metrics
H-Index
i10 Index
Citation Counts
42
131
7,266
* Total H IndexRankings
Ranking Based On Selection: 8
Metrics
H-Index
i10 Index
Citation Counts
37
68
3,658
* Total H IndexRankings
Ranking Based On Selection: 9
Health Outcomes Research
Metrics
H-Index
i10 Index
Citation Counts
35
130
4,809
* Total H IndexRankings
Ranking Based On Selection: 10
HVACR
Energy Renewal.
Metrics
H-Index
i10 Index
Citation Counts
34
120
4,755
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* Total H IndexRankings
Ranking Based On Selection: 11
Helping Others
Second interest
Teaching.
Metrics
H-Index
i10 Index
Citation Counts
33
71
3,541
* Total H IndexRankings
Ranking Based On Selection: 12
Secondary metabolites
Mevalonic acid pathways
essential oil
Irradiated polysaccharides
Metrics
H-Index
i10 Index
Citation Counts
32
55
3,011
* Total H IndexRankings
Ranking Based On Selection: 13
Applied plant molecular breeding
Metrics
H-Index
i10 Index
Citation Counts
32
44
4,253
* Total H IndexRankings
Ranking Based On Selection: 14
Polymer nanocomposites
Metrics
H-Index
i10 Index
Citation Counts
30
61
5,714
* Total H IndexRankings
Ranking Based On Selection: 15
Well testing
EOR
Reservoir Managment and Engineering
Metrics
H-Index
i10 Index
Citation Counts
30
57
3,440
* Total H IndexRankings
Ranking Based On Selection: 16
Metrics
H-Index
i10 Index
Citation Counts
29
49
2,827
* Total H IndexRankings
Ranking Based On Selection: 17
Liquefaction
Regasification
Process Systems Engineering
Water Harvesting
LNG
Metrics
H-Index
i10 Index
Citation Counts
28
47
2,536
* Total H IndexRankings
Ranking Based On Selection: 18
Clinical medicine
immunology
microbiology
surgery
Metrics
H-Index
i10 Index
Citation Counts
28
57
2,965
* Total H IndexRankings
Ranking Based On Selection: 19
Diabetes
Autism
mental health
CNCD
Metrics
H-Index
i10 Index
Citation Counts
27
46
2,907
* Total H IndexRankings
Ranking Based On Selection: 20
Metrics
H-Index
i10 Index
Citation Counts
27
96
3,089
* Total H IndexRankings
Ranking Based On Selection: 21
medical informatics
medical education
e-learning
m-learning
Metrics
H-Index
i10 Index
Citation Counts
26
42
4,183
* Total H IndexRankings
Ranking Based On Selection: 22
Obesity
Inflammation
Metabolism
Cancer
Metrics
H-Index
i10 Index
Citation Counts
26
37
3,731
* Total H IndexRankings
Ranking Based On Selection: 23
Solar energy application
Laser ablation
PVD
Wastewater treatment
Metrics
H-Index
i10 Index
Citation Counts
24
41
2,329
* Total H IndexRankings
Ranking Based On Selection: 24
Metrics
H-Index
i10 Index
Citation Counts
23
42
1,675
* Total H IndexRankings
Ranking Based On Selection: 25
Control Theory and Applications. Robotics and Autonomous Systems. Mechatronics
Metrics
H-Index
i10 Index
Citation Counts
23
38
2,561
Hussein A Kazem
Sohar University
Sohar, Oman
Metrics
H-Index
i10-Index
Citation Counts
70
178
15,359
Solar Thermal
Photovoltaic/Thermal
Photovoltaic
Nano-PCM
Solar Energy
Alka Ahuja
Metrics
H-Index
i10-Index
Citation Counts
53
116
12,420
Super Green Hydrogen
Sustainable Energy
Superoxide Ion
Green Engineering
Deep Eutectic Solvents
Muhammad Usman
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
44
84
7,208
Mixed-valent iron minerals
Magnetite
Advanced Oxidation
Environmental Remediation
Fenton
Khalid Al Rasadi
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
43
99
7,496
Lipid and Lipoprotein Disorders
Familial hypercholesterolemia
Cardiovascular Disease risk factors
Sabah Ahmed Abdul Wahab Al Sulaiman
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
42
131
7,266
Myo Tay Zar Myint
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
37
68
3,658
Ibrahim Al Zakwani
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
35
130
4,809
Shahid Ali Khan
Military Technological College
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
34
120
4,755
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Lamk Lamki
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
33
71
3,541
Mohammad Idrees
Dhofar University
Salalah, Oman
Metrics
H-Index
i10-Index
Citation Counts
32
55
3,011
Secondary metabolites
Mevalonic acid pathways
essential oil
Irradiated polysaccharides
Hesham Agrama
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
32
44
4,253
Aamir Hussain Bhat
Metrics
H-Index
i10-Index
Citation Counts
30
61
5,714
Ali S Al Bemani Al Bemani
Metrics
H-Index
i10-Index
Citation Counts
30
57
3,440
Syed Abdullah Gilani
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10-Index
Citation Counts
29
49
2,827
Mohd Shariq Khan
Dhofar University
Salalah, Oman
Metrics
H-Index
i10-Index
Citation Counts
28
47
2,536
Liquefaction
Regasification
Process Systems Engineering
Water Harvesting
LNG
Eugene Johnson
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
28
57
2,965
Mohammad Al Shafaee
Metrics
H-Index
i10-Index
Citation Counts
27
46
2,907
Anvar Kacimov
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
27
96
3,089
Ken Masters
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
26
42
4,183
Shaikh Mizanoor Rahman
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10-Index
Citation Counts
26
37
3,731
Mohamed Salah Mahmoud
Metrics
H-Index
i10-Index
Citation Counts
24
41
2,329
Solar energy application
Laser ablation
PVD
Wastewater treatment
Aly Abdelrahman
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
23
42
1,675
Faisal Mnif
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10-Index
Citation Counts
23
38
2,561
Control Theory and Applications. Robotics and Autonomous Systems. Mechatronics