World Scientist and University Rankings 2025
World Engineering & Technology 799 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 Feb 16, 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 (888.752) 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: 26
Materials synthesis
surface and interface chemistry
energy storage
heterogeneous catalysis
separations
Metrics
H-Index
i10 Index
Citation Counts
43
65
10,916
* Total H IndexRankings
Ranking Based On Selection: 27
Energy
Thermal engineering
Nuclear engineering
Metrics
H-Index
i10 Index
Citation Counts
43
101
6,610
* Total H IndexRankings
Ranking Based On Selection: 28
Plasma Physics
Plasma Enginnering
Microelectronics
Fusion
Metrics
H-Index
i10 Index
Citation Counts
43
181
6,867
* Total H IndexRankings
Ranking Based On Selection: 29
Radiation damage
accelerator
nuclear materials
nuclear engineering
ion beam analysis
Metrics
H-Index
i10 Index
Citation Counts
42
145
6,979
* Total H IndexRankings
Ranking Based On Selection: 30
neutrons
nonproliferation
homeland security
nuclear safeguards
Metrics
H-Index
i10 Index
Citation Counts
40
160
6,554
* Total H IndexRankings
Ranking Based On Selection: 31
Digital Twin
Uncertainty Quantification
Nuclear Engineering
Monte Carlo Simulation
Metrics
H-Index
i10 Index
Citation Counts
39
116
5,259
* Total H IndexRankings
Ranking Based On Selection: 32
Combustion physics
Physics
Nuclear engineering
Mechanical engineering
Gas dynamics
Metrics
H-Index
i10 Index
Citation Counts
39
82
4,956
* Total H IndexRankings
Ranking Based On Selection: 33
Heat and mass transfer
reactor safety
nuclear materials management and security
Metrics
H-Index
i10 Index
Citation Counts
39
154
8,997
* Total H IndexRankings
Ranking Based On Selection: 34
Energia Nuclear
Química
Metrologia
Qualidade
Materiais de Referência
Metrics
H-Index
i10 Index
Citation Counts
38
125
5,383
* Total H IndexRankings
Ranking Based On Selection: 35
Nuclear Engineering
Computational Design
Metrics
H-Index
i10 Index
Citation Counts
38
155
6,921
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* Total H IndexRankings
Ranking Based On Selection: 36
Nuclear Physics
Theoretical Physics
Academy of Romanian Scientists
Metrics
H-Index
i10 Index
Citation Counts
37
98
4,317
* Total H IndexRankings
Ranking Based On Selection: 37
nuclear reaction
Metrics
H-Index
i10 Index
Citation Counts
37
84
4,316
* Total H IndexRankings
Ranking Based On Selection: 38
Radiation Effects on Materials
Metrics
H-Index
i10 Index
Citation Counts
37
78
4,483
* Total H IndexRankings
Ranking Based On Selection: 39
Nuclear Materials
Metallurgy
Radiation Damage
Corrosion
Fouling
Metrics
H-Index
i10 Index
Citation Counts
36
72
3,679
* Total H IndexRankings
Ranking Based On Selection: 40
Ecotoxicologia
Metrics
H-Index
i10 Index
Citation Counts
36
110
4,760
* Total H IndexRankings
Ranking Based On Selection: 41
Nuclear Engineering
Nuclear Safety
New Generation Reactors
SMRs
Metrics
H-Index
i10 Index
Citation Counts
36
91
4,607
* Total H IndexRankings
Ranking Based On Selection: 42
intelligent systems
fuzzy logic
energy
nuclear engineering
Metrics
H-Index
i10 Index
Citation Counts
36
108
7,669
* Total H IndexRankings
Ranking Based On Selection: 43
numerical analysis
computational physics
Academy of Romanian Scientists
Metrics
H-Index
i10 Index
Citation Counts
36
54
4,327
* Total H IndexRankings
Ranking Based On Selection: 44
Metrics
H-Index
i10 Index
Citation Counts
35
87
5,414
* Total H IndexRankings
Ranking Based On Selection: 45
nuclear engineering
Metrics
H-Index
i10 Index
Citation Counts
35
118
6,252
* Total H IndexRankings
Ranking Based On Selection: 46
Theoretical nuclear physics
Nuclear structure
Academy of Romanian Scientists
Metrics
H-Index
i10 Index
Citation Counts
35
92
4,207
* Total H IndexRankings
Ranking Based On Selection: 47
Innovation
productivity
competitiveness
energy
Metrics
H-Index
i10 Index
Citation Counts
34
62
9,390
* Total H IndexRankings
Ranking Based On Selection: 48
computational biology
gene regulatory networks
bioinformatics
genomics
genome annotation
Metrics
H-Index
i10 Index
Citation Counts
33
58
10,098
* Total H IndexRankings
Ranking Based On Selection: 49
Plant Nutrition
Metrics
H-Index
i10 Index
Citation Counts
33
75
3,606
* Total H IndexRankings
Ranking Based On Selection: 50
Nuclear Materials
High Temper. Mech. Behav.
Additive Manufacturing
Spark Plasma Sintering
Solid State Welding & Processing
Metrics
H-Index
i10 Index
Citation Counts
33
74
6,755
Pasquale F Fulvio
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
43
65
10,916
Materials synthesis
surface and interface chemistry
energy storage
heterogeneous catalysis
separations
Jose M Martinez-Val
Metrics
H-Index
i10-Index
Citation Counts
43
101
6,610
Energy
Thermal engineering
Nuclear engineering
DN Ruzic
Metrics
H-Index
i10-Index
Citation Counts
43
181
6,867
Plasma Physics
Plasma Enginnering
Microelectronics
Fusion
Lin Shao
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
42
145
6,979
Radiation damage
accelerator
nuclear materials
nuclear engineering
ion beam analysis
Sara Pozzi
University of Michigan
Ann Arbor, United States
Metrics
H-Index
i10-Index
Citation Counts
40
160
6,554
neutrons
nonproliferation
homeland security
nuclear safeguards
Edoardo Patelli
University of Strathclyde
Glasgow, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
39
116
5,259
Digital Twin
Uncertainty Quantification
Nuclear Engineering
Monte Carlo Simulation
Mike Kuznetsov
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
39
82
4,956
Combustion physics
Physics
Nuclear engineering
Mechanical engineering
Gas dynamics
Per F Peterson
Metrics
H-Index
i10-Index
Citation Counts
39
154
8,997
Heat and mass transfer
reactor safety
nuclear materials management and security
Elisabete A De Nadai Fernandes
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10-Index
Citation Counts
38
125
5,383
Energia Nuclear
Química
Metrologia
Qualidade
Materiais de Referência
Geoffrey Parks
University of Cambridge
Cambridge, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
38
155
6,921
Nuclear Engineering
Computational Design
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Mirea M
Metrics
H-Index
i10-Index
Citation Counts
37
98
4,317
Nuclear Physics
Theoretical Physics
Academy of Romanian Scientists
Alessia Di Pietro
Metrics
H-Index
i10-Index
Citation Counts
37
84
4,316
Michael P Short
Metrics
H-Index
i10-Index
Citation Counts
36
72
3,679
Nuclear Materials
Metallurgy
Radiation Damage
Corrosion
Fouling
Valdemar Luiz Tornisielo
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10-Index
Citation Counts
36
110
4,760
Marco Enrico Ricotti
Politecnico di Milano
Milano, Italy
Metrics
H-Index
i10-Index
Citation Counts
36
91
4,607
Nuclear Engineering
Nuclear Safety
New Generation Reactors
SMRs
Lefteri Tsoukala
Purdue University
West Lafayette, United States
Metrics
H-Index
i10-Index
Citation Counts
36
108
7,669
intelligent systems
fuzzy logic
energy
nuclear engineering
Liviu Ixaru
Metrics
H-Index
i10-Index
Citation Counts
36
54
4,327
numerical analysis
computational physics
Academy of Romanian Scientists
Lelio Luzzi
Politecnico di Milano
Milano, Italy
Metrics
H-Index
i10-Index
Citation Counts
35
87
5,414
Zhong He
University of Michigan
Ann Arbor, United States
Metrics
H-Index
i10-Index
Citation Counts
35
118
6,252
Doru S. Delion
Metrics
H-Index
i10-Index
Citation Counts
35
92
4,207
Theoretical nuclear physics
Nuclear structure
Academy of Romanian Scientists
Richard K Lester
Metrics
H-Index
i10-Index
Citation Counts
34
62
9,390
Innovation
productivity
competitiveness
energy
Diego Mauricio Riaño Pachón|Diego Mauricio Riano-Pachon
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10-Index
Citation Counts
33
58
10,098
computational biology
gene regulatory networks
bioinformatics
genomics
genome annotation
José Lavres Junior
Universidade de São Paulo USP
São Paulo, Brazil
Metrics
H-Index
i10-Index
Citation Counts
33
75
3,606
Indrajit Charit
University of Idaho
Moscow, United States
Metrics
H-Index
i10-Index
Citation Counts
33
74
6,755
Nuclear Materials
High Temper. Mech. Behav.
Additive Manufacturing
Spark Plasma Sintering
Solid State Welding & Processing