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 Dec 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 (1.131.755) 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
Process systems engineering | Process integration | Carbon managemen
H-Index Metrics
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H-Index75
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i10 Index384
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Citation Counts23,043
Rankings
grain quality | nutrition | climate change | seed biology | food scienc
H-Index Metrics
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H-Index65
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i10 Index143
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Citation Counts16,891
Rankings
Industrial Ecology | Sustainable Consumption and Productio
H-Index Metrics
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H-Index55
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i10 Index128
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Citation Counts11,892
Rankings
Water treatment | Air purification | Resource recovery | Bioenergy | Sensor
H-Index Metrics
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H-Index49
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i10 Index129
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Citation Counts7,734
Rankings
Food and nutrition security | food systems | food policy | value chain analysis | behavioral economic
H-Index Metrics
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H-Index46
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i10 Index102
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Citation Counts6,948
Rankings
Environmental Decision Making | Process Integration | Process Systems Engineering | Life Cycle Assessment | Renewable Energy System
H-Index Metrics
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H-Index46
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i10 Index156
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Citation Counts6,865
Rankings
Life Cycle Assessment | Energy Systems Modeling | Bioenergy Systems | Microalgae | Industrial Ecolog
H-Index Metrics
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H-Index41
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i10 Index99
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Citation Counts6,361
Rankings
Marine biodiversity | Marine natural products | Biomedical researc
H-Index Metrics
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H-Index40
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i10 Index92
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Citation Counts4,835
Rankings
Rankings
Environmental Chemistry and Ecotoxicology | Science Educatio
H-Index Metrics
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H-Index39
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i10 Index61
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Citation Counts9,449
Rankings
Robotics | Neural Networks | Artificial Intelligence | Software Engineering | Automation and Intelligent System
H-Index Metrics
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H-Index38
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i10 Index252
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Citation Counts8,142
Rankings
Decision and Risk analysis | Geopolymer and Advanced Materials Engineering Research for Sustainability | Environment and Energy |
H-Index Metrics
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H-Index36
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i10 Index116
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Citation Counts5,315
Rankings
climate change | disaster risk management | community-based natural resource management | natural resources policy and governanc
H-Index Metrics
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H-Index36
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i10 Index88
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Citation Counts7,612
Rankings
Hazardous Waste Management | POPs Management | electronic waste | health impact assessmen
H-Index Metrics
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H-Index34
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i10 Index52
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Citation Counts3,779
Rankings
Artificial Intelligence | Robotics | Swarm Robotics | Multi agent systems | AI in agricultur
H-Index Metrics
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H-Index34
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i10 Index151
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Citation Counts5,297
Rankings
marine ecology | aquaculture | coastal resources management | biology of marine invertebrate
H-Index Metrics
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H-Index34
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i10 Index68
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Citation Counts3,892
Rankings
Artificial Intelligence in Education | Affective Computing | Educational Data Minin
H-Index Metrics
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H-Index34
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i10 Index72
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Citation Counts6,357
Rankings
Marine Science | Marine Ecology | Coral Reef Ecology | Land Us
H-Index Metrics
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H-Index32
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i10 Index66
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Citation Counts3,211
Rankings
Marine Botany | Harmful Algal Bloom | Seaweed Biology and Cultur
H-Index Metrics
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H-Index31
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i10 Index62
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Citation Counts3,363
Rankings
Carbon dioxide capture | chemical thermodynamics | engineering thermodynamics | process simulation | property correlation developme
H-Index Metrics
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H-Index31
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i10 Index45
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Citation Counts2,789
Rankings
Drug Discovery | microbial | plant and marine natural products chemistry | plant-microbe interaction
H-Index Metrics
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H-Index30
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i10 Index43
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Citation Counts4,139
Rankings
Rankings
Rankings
Nanoscience | Inorganic Chemistry | Materials Chemistry | Materials Science and Engineerin
H-Index Metrics
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H-Index29
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i10 Index35
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Citation Counts3,775
Rankings
Biofuels | Biomass | Biotechnology | Chemical Engineering | Waste Utilizatio
H-Index Metrics
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H-Index28
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i10 Index60
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Citation Counts2,339
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