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 31, 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
advanced oxidation processes (AOPs)
applied catalysis
environmental engineering
water/wastewater treatment
Metrics
H-Index
i10 Index
Citation Counts
84
258
24,901
* Total H IndexRankings
Ranking Based On Selection: 2
Environmental Biotechnology
Bioprocesses
biofuels
microalgae
Metrics
H-Index
i10 Index
Citation Counts
55
135
11,827
* Total H IndexRankings
Ranking Based On Selection: 3
Water and wastewater treatment
Metrics
H-Index
i10 Index
Citation Counts
50
115
7,205
* Total H IndexRankings
Ranking Based On Selection: 4
Molecular & multiscale modelling
Polymer engineering
Thermodynamics
Advanced materials
Nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
45
115
6,756
* Total H IndexRankings
Ranking Based On Selection: 5
surface science
thin films
interfaces
nanomaterials
organic electronics
Metrics
H-Index
i10 Index
Citation Counts
43
141
6,695
* Total H IndexRankings
Ranking Based On Selection: 6
Fluid Mechanics
Transport Phenomena
Rheology
Numerical Methods
Metrics
H-Index
i10 Index
Citation Counts
42
119
6,627
* Total H IndexRankings
Ranking Based On Selection: 7
Metrics
H-Index
i10 Index
Citation Counts
40
72
5,687
* Total H IndexRankings
Ranking Based On Selection: 8
Electrocatalysis
Electrochemistry
Metrics
H-Index
i10 Index
Citation Counts
35
65
3,658
* Total H IndexRankings
Ranking Based On Selection: 9
Catalysis
Surface Science
Chemistry
Metrics
H-Index
i10 Index
Citation Counts
33
58
5,399
* Total H IndexRankings
Ranking Based On Selection: 10
Biochemical Engineering
Nonlinear Dynamics
Metrics
H-Index
i10 Index
Citation Counts
33
70
4,158
* Total H IndexRankings
Ranking Based On Selection: 11
Chemical Engineer
Metrics
H-Index
i10 Index
Citation Counts
32
59
4,653
* Total H IndexRankings
Ranking Based On Selection: 12
High temperature processes of materials
Metallurgy
Metrics
H-Index
i10 Index
Citation Counts
30
47
3,586
* Total H IndexRankings
Ranking Based On Selection: 13
Science and Technology of Surfaces
Interfaces and Thin Films
Metrics
H-Index
i10 Index
Citation Counts
30
73
4,972
* Total H IndexRankings
Ranking Based On Selection: 14
Polymer solutions
Water-soluble polymers
Metrics
H-Index
i10 Index
Citation Counts
28
57
2,315
* Total H IndexRankings
Ranking Based On Selection: 15
Sensors
Materials
Metrics
H-Index
i10 Index
Citation Counts
26
35
2,377
* Total H IndexRankings
Ranking Based On Selection: 16
Metrics
H-Index
i10 Index
Citation Counts
25
38
1,776
* Total H IndexRankings
Ranking Based On Selection: 17
Biotechnology
Structural Biology
Metrics
H-Index
i10 Index
Citation Counts
21
24
1,746
* Total H IndexRankings
Ranking Based On Selection: 18
Plasma Processing
PECVD
Metrics
H-Index
i10 Index
Citation Counts
21
40
1,561
* Total H IndexRankings
Ranking Based On Selection: 19
Plasma Processing
Nanomaterials
Thin Films
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,096
* Total H IndexRankings
Ranking Based On Selection: 20
Chemical Engineering
membrane filtration
anaerobic digestion
phenols
wastewater
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,115
* Total H IndexRankings
Ranking Based On Selection: 21
Mathematical Physics
Applied Mathematics
Partial Differential Equations
Boundary Value Problems
Metrics
H-Index
i10 Index
Citation Counts
17
22
676
* Total H IndexRankings
Ranking Based On Selection: 22
Aerosol physics
Multiscale modeling of soft matter
Metrics
H-Index
i10 Index
Citation Counts
15
19
646
* Total H IndexRankings
Ranking Based On Selection: 23
wettability
microfluidic
crystal growth
physical chemistry
adsorption
Metrics
H-Index
i10 Index
Citation Counts
13
14
566
* Total H IndexRankings
Ranking Based On Selection: 24
chemical engineering
physics
Metrics
H-Index
i10 Index
Citation Counts
9
8
212
* Total H IndexRankings
Ranking Based On Selection: 25
Nanomaterials
Nanotechnoly
dielectric spectroscopy
electrical properties
mechanical performance
Metrics
H-Index
i10 Index
Citation Counts
7
6
182
Dionissios Mantzavinos
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
84
258
24,901
advanced oxidation processes (AOPs)
applied catalysis
environmental engineering
water/wastewater treatment
Michael Kornaros
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
55
135
11,827
Environmental Biotechnology
Bioprocesses
biofuels
microalgae
Vayenas Dimitris
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
50
115
7,205
Water and wastewater treatment
Vlasis Mavrantzas
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
45
115
6,756
Molecular & multiscale modelling
Polymer engineering
Thermodynamics
Advanced materials
Nanomaterials
Kennou Stella
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
43
141
6,695
surface science
thin films
interfaces
nanomaterials
organic electronics
John Tsamopoulos
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
42
119
6,627
Fluid Mechanics
Transport Phenomena
Rheology
Numerical Methods
Symeon Bebelis
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
40
72
5,687
Alexandros Katsaounis
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
35
65
3,658
Electrocatalysis
Electrochemistry
Georgios Kyriakou
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
33
58
5,399
Catalysis
Surface Science
Chemistry
Stavros Pavlou
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
33
70
4,158
Biochemical Engineering
Nonlinear Dynamics
Antonopoulou Georgia
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
32
59
4,653
George N Angelopoulos
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
30
47
3,586
High temperature processes of materials
Metallurgy
Spyridon Ladas
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
30
73
4,972
Science and Technology of Surfaces
Interfaces and Thin Films
Georgios Staikos
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
28
57
2,315
Polymer solutions
Water-soluble polymers
Dimitris Kouzoudis
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
26
35
2,377
Athanasia Petala
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
25
38
1,776
Maria Dimarogona
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
21
24
1,746
Biotechnology
Structural Biology
Dimitrios S Mataras
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
21
40
1,561
Plasma Processing
PECVD
Eleftherios Amanatides
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
18
28
1,096
Plasma Processing
Nanomaterials
Thin Films
Dimitris Zagklis
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
17
24
1,115
Chemical Engineering
membrane filtration
anaerobic digestion
phenols
wastewater
Panayiotis Vafeas
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
17
22
676
Mathematical Physics
Applied Mathematics
Partial Differential Equations
Boundary Value Problems
Dimitrios G Tsalikis
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
15
19
646
Aerosol physics
Multiscale modeling of soft matter
Varvara Sygouni
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
13
14
566
wettability
microfluidic
crystal growth
physical chemistry
adsorption
Dimitris Grigoriou
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
9
8
212
chemical engineering
physics
Georgia C Manika
University of Patras
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
7
6
182
Nanomaterials
Nanotechnoly
dielectric spectroscopy
electrical properties
mechanical performance