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 6 years. As of Jun 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 (1.121.296) 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



Photocatalysis | Catalysis | Sensor | Nanomaterial
H-Index Metrics
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H-Index76
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i10 Index216
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Citation Counts15,590
Rankings



Rheology | Glass Transition of biopolymer | Nanopackaging | Functional food | High-pressure processin
H-Index Metrics
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H-Index70
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i10 Index186
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Citation Counts14,667
Rankings



hydrotreating | hydrodesulfurization | sorption | fuel | CO2 captur
H-Index Metrics
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H-Index52
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i10 Index107
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Citation Counts13,385
Rankings



Water | Hydrogeochemistry | Geochemical modeling | Isotopes | Geo Statsitic
H-Index Metrics
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H-Index50
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i10 Index181
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Citation Counts9,567
Rankings



Hydroprocessing | Catalysis | Asphaltene | Refining | CC
H-Index Metrics
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H-Index46
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i10 Index89
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Citation Counts8,936
Rankings



Climate change | Biogeology | Dust | Phytogenic | Life science
H-Index Metrics
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H-Index42
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i10 Index64
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Citation Counts3,702
Rankings



Metal hydrides | crystal defects | Nanopowders | Nonequilibrium | Amorphous Alloy
H-Index Metrics
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H-Index39
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i10 Index101
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Citation Counts5,221
Rankings



Waste Management | Plastic Solid Waste | Polymerization/Depolymerization Technology | Reaction Engineering | Reaction Kinetic
H-Index Metrics
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H-Index37
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i10 Index86
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Citation Counts9,019
Rankings



Biological Oceanography | Plankton Ecology | Marine Biodiversity and Conservation
H-Index Metrics
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H-Index35
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i10 Index77
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Citation Counts4,302
Rankings



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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 Counts3,978
Rankings



Coastal Engineering | Ocean Energy | Breakwaters | Wave force
H-Index Metrics
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H-Index29
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i10 Index60
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Citation Counts2,775
Rankings



Acrylamide | Food Microbiology | Food Chemistry | Biodegradable Packagin
H-Index Metrics
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H-Index27
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i10 Index48
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Citation Counts2,989
Rankings



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Rankings



Soil salinization | integrated soil fertility | desertification and land use plannin
H-Index Metrics
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H-Index26
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i10 Index61
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Citation Counts3,846
Rankings



Rankings



Native Desert Plants | Bioprospecting | Desert Agriculture | Drug Discovery | Natural Product
H-Index Metrics
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H-Index23
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i10 Index36
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Citation Counts2,343
Rankings



Rankings



Rankings



Air Quality | Health Risks Assessment | CFD Models | Wind Tunne
H-Index Metrics
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H-Index21
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i10 Index31
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Citation Counts1,561
Rankings



Rankings



Plant-soil-microbes interactions | Ecosystem restoration | Ecosystem processes | Ecological monitoring | Reclamation and restoratio
H-Index Metrics
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H-Index21
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i10 Index26
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Citation Counts1,310