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
Acoustic Cavitation
Sonochemistry
Liquid Membrane
Advanced Oxidation
Separation Processes
Metrics
H-Index
i10 Index
Citation Counts
60
165
13,573
* Total H IndexRankings
Ranking Based On Selection: 2
Chemical Engineering
Catalyst
Metrics
H-Index
i10 Index
Citation Counts
46
155
6,342
* Total H IndexRankings
Ranking Based On Selection: 3
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
46
172
7,591
* Total H IndexRankings
Ranking Based On Selection: 4
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
41
125
5,318
* Total H IndexRankings
Ranking Based On Selection: 5
Water Treatment and Desalination
Polymer Membranes
Metrics
H-Index
i10 Index
Citation Counts
38
70
4,135
* Total H IndexRankings
Ranking Based On Selection: 6
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
29
49
2,772
* Total H IndexRankings
Ranking Based On Selection: 7
Smart Material Energy Water Defence
Metrics
H-Index
i10 Index
Citation Counts
27
43
2,066
* Total H IndexRankings
Ranking Based On Selection: 8
Membrane Technology
Water Desalination
Optimization and Modeling
Development anti-biofouling Membrane
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,390
* Total H IndexRankings
Ranking Based On Selection: 9
Process safety and risk assessemnt
toxicology and environmental impact assessment
air pollution
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,771
* Total H IndexRankings
Ranking Based On Selection: 10
Membrane Engineering
water and watewater treatment
environmental Engineering
process simulation
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,379
* Total H IndexRankings
Ranking Based On Selection: 11
Chemical and Industrial Process Eng
Food Processing
Electro-Technologies in Bioprocessing
Solid-Liquid separation
Nano-Membr
Metrics
H-Index
i10 Index
Citation Counts
16
21
870
* Total H IndexRankings
Ranking Based On Selection: 12
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
13
14
1,077
* Total H IndexRankings
Ranking Based On Selection: 13
process synthesis
simulation
Design
optimization
heat integration
Metrics
H-Index
i10 Index
Citation Counts
12
13
633
Oualid Hamdaoui
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
60
165
13,573
Acoustic Cavitation
Sonochemistry
Liquid Membrane
Advanced Oxidation
Separation Processes
Ahmed Alfatesh|Ahmed Alfatesh, Ahmed S. Al-Fatesh
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
46
155
6,342
Chemical Engineering
Catalyst
Saeed M Al Zahrani
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
46
172
7,591
Anis Fakeeha
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
41
125
5,318
Mansour Alhoshan
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
38
70
4,135
Water Treatment and Desalination
Polymer Membranes
Mohamed Kamel Hadj-Kali
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
29
49
2,772
Fahad S Al-Mubaddel
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
27
43
2,066
Smart Material Energy Water Defence
Fekri Abdulraqeb Ahmed Ali
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
22
33
1,390
Membrane Technology
Water Desalination
Optimization and Modeling
Development anti-biofouling Membrane
Mohanad El Harbawi
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
21
31
1,771
Process safety and risk assessemnt
toxicology and environmental impact assessment
air pollution
MR Muthumareeswaran|Muthumareeswaran Muthu Ramamoorthy, Muthumareeswaran Muthuramamoorthy, Muthumareeswaran MR
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
19
28
1,379
Membrane Engineering
water and watewater treatment
environmental Engineering
process simulation
A Bessadok Jemai
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
16
21
870
Chemical and Industrial Process Eng
Food Processing
Electro-Technologies in Bioprocessing
Solid-Liquid separation
Nano-Membr
Sarwono Mulyono Mulyoprayitno
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
13
14
1,077
Abdulrahman Al Rabiah
King Saud University
Riyadh, Saudi Arabia
Metrics
H-Index
i10-Index
Citation Counts
12
13
633
process synthesis
simulation
Design
optimization
heat integration