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 04, 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 (0) 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
Food engineering | food materials science | food packaging | nutrition | chemical engineerin
H-Index Metrics
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H-Index105
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i10 Index406
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Citation Counts34,362
Rankings
Industrial Chemistry | Chemical Engineering | Materials Science | Bio-inorganic and Medicinal Chemistr
H-Index Metrics
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H-Index94
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i10 Index523
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Citation Counts31,642
Rankings
Battery Recycling | Heterogeneous Catalysis | Hydrogen Production | Battery | Circular Econom
H-Index Metrics
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H-Index56
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i10 Index97
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Citation Counts9,206
Rankings
Nanoscale engineering | Surface modification | Biomass conversio
H-Index Metrics
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H-Index54
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i10 Index151
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Citation Counts13,965
Rankings
Membrane technology | wastewater treatment and reclamation | algal technology | advanced oxidatio
H-Index Metrics
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H-Index42
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i10 Index81
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Citation Counts6,361
Rankings
Catalysis | Clean energy | Renewable fuels | Nanomaterials | Additive Manufacturing and Chemical Sensin
H-Index Metrics
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H-Index42
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i10 Index85
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Citation Counts6,842
Rankings
Rankings
Heterogeneous Catalysis | Biomass Conversion | Mercury Removal | CO2 Conversio
H-Index Metrics
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H-Index34
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i10 Index48
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Citation Counts3,905
Rankings
Heterogeneous catalysis | Liquid metals | Gas technologies | Hydrogen production and conversion | CO2 utilsiatio
H-Index Metrics
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H-Index34
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i10 Index69
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Citation Counts4,867
Rankings
Soft Matter | Emulsions | AFM | Colloids and Surface Science | Wetting and Spreadin
H-Index Metrics
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H-Index30
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i10 Index45
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Citation Counts2,364
Rankings
Nano particles | Composites | Biomaterials | Water Filtratio
H-Index Metrics
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H-Index11
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i10 Index11
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Citation Counts1,077
Rankings
Rankings
chemical engineering | rheology | optimization | transport phenomena | process modellin
H-Index Metrics
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H-Index9
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i10 Index8
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Citation Counts341
Rankings
Rankings
Chemical Engineering | Membrane Separation | Process & Equipment Desig
H-Index Metrics
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H-Index5
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i10 Index3
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Citation Counts157
Rankings
Chemical Engineering_Process Development and Technology Transfe
H-Index Metrics
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H-Index5
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i10 Index3
-
Citation Counts127
Rankings
Material science | Chemical engineering | Environmental science | Nanotechnolog
H-Index Metrics
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H-Index4
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i10 Index3
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Citation Counts120
Rankings
Rankings
Chemical Engineering (Process optimisation) | Forensic Imagin
H-Index Metrics
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H-Index3
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i10 Index2
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Citation Counts80
Rankings
Wastewater treatment | Membrane Bioreactors | Biological Treatment | Resource Recovery | Water Treatmen
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts78
Rankings
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