The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 5 years. As of Jan 01, 2026, 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 (1.131.752) 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].
Rankings
Multiphase Flow | Heat and Mass Transfer | Porous Media | Filtration | Nanofluid
H-Index Metrics
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H-Index151
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i10 Index1,004
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Citation Counts72,682
Rankings
Photocatalysis | Catalysis | Sensor | Nanomaterial
H-Index Metrics
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H-Index78
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i10 Index229
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Citation Counts16,611
Rankings
Biomaterials | Drug Delivery | Biosensing | Bioprocess Engineerin
H-Index Metrics
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H-Index61
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i10 Index114
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Citation Counts22,478
Rankings
hydrotreating | hydrodesulfurization | sorption | fuel | CO2 captur
H-Index Metrics
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H-Index54
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i10 Index109
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Citation Counts13,752
Rankings
Affective Computing | Artificial Intelligence | BioSignal/Image Processin
H-Index Metrics
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H-Index51
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i10 Index116
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Citation Counts9,737
Rankings
Hydroprocessing | Catalysis | Asphaltene | Refining | CC
H-Index Metrics
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H-Index47
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i10 Index93
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Citation Counts9,394
Rankings
Climate change | Biogeology | Dust | Aeolian | Life science
H-Index Metrics
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H-Index44
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i10 Index74
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Citation Counts4,027
Rankings
Metal hydrides | crystal defects | Nanopowders | Nonequilibrium | Amorphous Alloy
H-Index Metrics
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H-Index40
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i10 Index99
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Citation Counts5,368
Rankings
Renewable Energy | Aerodynamics & Aeroelasticity | Computational Fluid Dynamics | Heat Transfe
H-Index Metrics
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H-Index37
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i10 Index94
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Citation Counts5,515
Rankings
Rankings
Environmental Engineering and Sciences | Air Pollution | Waste Management | Water & Wastewate
H-Index Metrics
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H-Index35
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i10 Index74
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Citation Counts5,042
Rankings
Nonlinear Control | Sliding Mode Control | Control Applications | Robotics | Chao
H-Index Metrics
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H-Index35
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i10 Index76
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Citation Counts5,046
Rankings
Petroleum Production and Processing | Fuels Properties and Qualty | Thermodynamics of Hydrocarbo
H-Index Metrics
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H-Index35
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i10 Index68
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Citation Counts5,600
Rankings
Artificial Intelligence | Blockchain | Next Generation Networks | Autonomous System
H-Index Metrics
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H-Index33
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i10 Index53
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Citation Counts3,914
Rankings
Mechanical Engineering | Energy and Water Systems | Sustainability | Environmental System
H-Index Metrics
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H-Index33
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i10 Index51
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Citation Counts4,178
Rankings
Nanoscience | Nanotechnology | Surfactant | Colloid | Microemulsio
H-Index Metrics
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H-Index32
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i10 Index60
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Citation Counts3,442
Rankings
vibrations | drilling | impact | composites | engineering educatio
H-Index Metrics
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H-Index32
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i10 Index48
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Citation Counts3,886
Rankings
Food Biopolymers | Food Chemistry | Food Packaging | Food Processing | High Pressure Processin
H-Index Metrics
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H-Index30
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i10 Index36
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Citation Counts4,235
Rankings
Coastal Engineering | Ocean Energy | Breakwaters | Wave force
H-Index Metrics
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H-Index30
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i10 Index64
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Citation Counts2,962
Rankings
Cyber Security | Media Security | Media Forensics | Visual Surveillance | Multimedi
H-Index Metrics
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H-Index30
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i10 Index64
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Citation Counts3,046
Rankings
finite element | composite materials | structural engineering | concrete | stee
H-Index Metrics
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H-Index30
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i10 Index68
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Citation Counts3,104
Rankings
Machine Learning | Renewable Energy | Autonomous Driving | Robotic
H-Index Metrics
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H-Index29
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i10 Index54
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Citation Counts2,435
Rankings
Soft Switching Converters | EV Chargers | DGs | Renewable Energ
H-Index Metrics
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H-Index28
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i10 Index54
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Citation Counts3,123
Rankings
Health Informatics | Information Systems | Cybersecurity | Software Engineerin
H-Index Metrics
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H-Index27
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i10 Index45
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Citation Counts4,122
Rankings
Environment | Infrastructure، Sustainability | Urban Systems | Logistic
H-Index Metrics
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H-Index26
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i10 Index57
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Citation Counts2,595
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