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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 03, 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].
* Total H Index Rankings
Rankings
68,499
World Rank
143
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Chemical Engineering
Nanomaterials Chemistry | Functional metal nanoparticles and nanoclusters - Synthesis and application
Nanomaterials Chemistry | Functional metal nanoparticles and nanoclusters - Synthesis and application
H-Index Metrics
-
H-Index56
-
i10 Index159
-
Citation Counts12,298
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* Total H Index Rankings
Rankings
131,435
World Rank
362
Country Rank
4
University
Ranking Based On Selection:
2
Engineering & Technology / Chemical Engineering
Nanomaterials | Surface chemistry | Separation | Water remediation | Catalysis and Renewable energ
Nanomaterials | Surface chemistry | Separation | Water remediation | Catalysis and Renewable energ
H-Index Metrics
-
H-Index43
-
i10 Index115
-
Citation Counts5,376
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* Total H Index Rankings
Rankings
177,663
World Rank
590
Country Rank
6
University
Ranking Based On Selection:
3
* Total H Index Rankings
Rankings
196,744
World Rank
692
Country Rank
8
University
Ranking Based On Selection:
4
Engineering & Technology / Chemical Engineering
Wastewater treatment | Bioreactor operation | Partial nitritation and Anammox processe
Wastewater treatment | Bioreactor operation | Partial nitritation and Anammox processe
H-Index Metrics
-
H-Index36
-
i10 Index82
-
Citation Counts4,258
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* Total H Index Rankings
Rankings
203,543
World Rank
726
Country Rank
3
University
Ranking Based On Selection:
5
Engineering & Technology / Chemical Engineering
Chemical Engineering | Membrane separation | modeling and simulation | CF
Chemical Engineering | Membrane separation | modeling and simulation | CF
H-Index Metrics
-
H-Index35
-
i10 Index92
-
Citation Counts4,492
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* Total H Index Rankings
Rankings
227,602
World Rank
848
Country Rank
2
University
Ranking Based On Selection:
6
Engineering & Technology / Chemical Engineering
Advanced Process Control | Fault Detection and Diagnosis | Machine Learning | Renewable Energie
Advanced Process Control | Fault Detection and Diagnosis | Machine Learning | Renewable Energie
H-Index Metrics
-
H-Index33
-
i10 Index68
-
Citation Counts4,019
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* Total H Index Rankings
Rankings
231,836
World Rank
900
Country Rank
39
University
Ranking Based On Selection:
7
Engineering & Technology / Chemical Engineering
Chemical Engineering/Membrane/Desalination/Polymers/Water Purification/Reverse Osmosis/Pervaporation/Gas Separation Membrane
Chemical Engineering/Membrane/Desalination/Polymers/Water Purification/Reverse Osmosis/Pervaporation/Gas Separation Membrane
H-Index Metrics
-
H-Index33
-
i10 Index61
-
Citation Counts2,910
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* Total H Index Rankings
Rankings
241,172
World Rank
924
Country Rank
41
University
Ranking Based On Selection:
8
Engineering & Technology / Chemical Engineering
Sodium ion batteries | Energy storage materials | Transition metal chalcogenide
Sodium ion batteries | Energy storage materials | Transition metal chalcogenide
H-Index Metrics
-
H-Index32
-
i10 Index49
-
Citation Counts4,359
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* Total H Index Rankings
Rankings
288,594
World Rank
1,217
Country Rank
29
University
Ranking Based On Selection:
9
Engineering & Technology / Chemical Engineering
Petroleum desulfurization | Catalytic Cracking | Plastic conversion | Coal processing | Material
Petroleum desulfurization | Catalytic Cracking | Plastic conversion | Coal processing | Material
H-Index Metrics
-
H-Index29
-
i10 Index59
-
Citation Counts3,704
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* Total H Index Rankings
Rankings
307,212
World Rank
1,320
Country Rank
6
University
Ranking Based On Selection:
10
Engineering & Technology / Chemical Engineering
Chemical Engineering | Energy | Environment | Engineering Educatio
Chemical Engineering | Energy | Environment | Engineering Educatio
H-Index Metrics
-
H-Index28
-
i10 Index39
-
Citation Counts4,411
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* Total H Index Rankings
Rankings
344,956
World Rank
1,541
Country Rank
39
University
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
368,056
World Rank
1,707
Country Rank
19
University
Ranking Based On Selection:
12
Engineering & Technology / Chemical Engineering
Photo/electrocatalysis | water splitting | Nanomaterials | Energy Conversion/storag
Photo/electrocatalysis | water splitting | Nanomaterials | Energy Conversion/storag
H-Index Metrics
-
H-Index25
-
i10 Index29
-
Citation Counts2,091
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* Total H Index Rankings
Rankings
377,432
World Rank
1,772
Country Rank
73
University
Ranking Based On Selection:
13
Engineering & Technology / Chemical Engineering
Water and Wastewater treatment | Adsorption | Electrochemical Regeneration | Water desalination | Electrocoagulatio
Water and Wastewater treatment | Adsorption | Electrochemical Regeneration | Water desalination | Electrocoagulatio
H-Index Metrics
-
H-Index25
-
i10 Index53
-
Citation Counts2,510
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* Total H Index Rankings
Rankings
390,743
World Rank
1,838
Country Rank
30
University
Ranking Based On Selection:
14
Engineering & Technology / Chemical Engineering
Heterogeneous Catalysis | Water Treatment | Contaminant Transportatio
Heterogeneous Catalysis | Water Treatment | Contaminant Transportatio
H-Index Metrics
-
H-Index24
-
i10 Index40
-
Citation Counts2,215
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* Total H Index Rankings
Rankings
419,585
World Rank
2,014
Country Rank
27
University
Ranking Based On Selection:
15
Engineering & Technology / Chemical Engineering
Environmental Remediation by Adsorption | Photo-catalysis | Energy From Biomas
Environmental Remediation by Adsorption | Photo-catalysis | Energy From Biomas
H-Index Metrics
-
H-Index23
-
i10 Index32
-
Citation Counts1,379
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* Total H Index Rankings
Rankings
427,817
World Rank
2,069
Country Rank
81
University
Ranking Based On Selection:
16
Engineering & Technology / Chemical Engineering
Adsorption | Regeneration processes | Waste water treatment | Synthesis of membrane for waste water and gas cleaning processe
Adsorption | Regeneration processes | Waste water treatment | Synthesis of membrane for waste water and gas cleaning processe
H-Index Metrics
-
H-Index23
-
i10 Index36
-
Citation Counts1,555
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* Total H Index Rankings
Rankings
470,045
World Rank
2,323
Country Rank
90
University
Ranking Based On Selection:
17
Engineering & Technology / Chemical Engineering
Transition Metal Oxides Synthesis | Energy Conversion and Storag
Transition Metal Oxides Synthesis | Energy Conversion and Storag
H-Index Metrics
-
H-Index21
-
i10 Index33
-
Citation Counts1,256
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* Total H Index Rankings
Rankings
482,070
World Rank
2,461
Country Rank
90
University
Ranking Based On Selection:
18
Engineering & Technology / Chemical Engineering
Computational Fluid Dynamics | Reaction kinetics | Pyrolysis | Vacuum Gas Carburizin
Computational Fluid Dynamics | Reaction kinetics | Pyrolysis | Vacuum Gas Carburizin
H-Index Metrics
-
H-Index21
-
i10 Index24
-
Citation Counts2,001
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* Total H Index Rankings
Rankings
487,566
World Rank
2,500
Country Rank
43
University
Ranking Based On Selection:
19
Engineering & Technology / Chemical Engineering
Analytical Chemistry | Environmental Analytical Techniques | Ionic Liquids | Graphene and Derivatives
Analytical Chemistry | Environmental Analytical Techniques | Ionic Liquids | Graphene and Derivatives
H-Index Metrics
-
H-Index21
-
i10 Index32
-
Citation Counts2,021
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* Total H Index Rankings
Rankings
502,319
World Rank
2,572
Country Rank
5
University
Ranking Based On Selection:
20
Engineering & Technology / Chemical Engineering
Water and wastewater treatment | Nano-particle removal | Heavy metal Pollution | Water Resourc
Water and wastewater treatment | Nano-particle removal | Heavy metal Pollution | Water Resourc
H-Index Metrics
-
H-Index20
-
i10 Index24
-
Citation Counts827
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* Total H Index Rankings
Rankings
502,792
World Rank
2,580
Country Rank
124
University
Ranking Based On Selection:
21
Engineering & Technology / Chemical Engineering
Thin Film & devices | Semiconductor | Catalysis | Piezoelectric | Energ
Thin Film & devices | Semiconductor | Catalysis | Piezoelectric | Energ
H-Index Metrics
-
H-Index20
-
i10 Index51
-
Citation Counts1,444
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* Total H Index Rankings
Rankings
513,760
World Rank
2,693
Country Rank
101
University
Ranking Based On Selection:
22
Engineering & Technology / Chemical Engineering
Advance Separation Technologies | CCU | Green Materials (ILs | MOFs) | Process Design and Simulatio
Advance Separation Technologies | CCU | Green Materials (ILs | MOFs) | Process Design and Simulatio
H-Index Metrics
-
H-Index20
-
i10 Index26
-
Citation Counts1,721
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* Total H Index Rankings
Rankings
531,491
World Rank
2,765
Country Rank
10
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
537,386
World Rank
2,855
Country Rank
33
University
Ranking Based On Selection:
24
Engineering & Technology / Chemical Engineering
Image processing | Machine Learning | Information Retrieva
Image processing | Machine Learning | Information Retrieva
H-Index Metrics
-
H-Index19
-
i10 Index31
-
Citation Counts1,292
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* Total H Index Rankings
Rankings
538,474
World Rank
2,873
Country Rank
47
University
Ranking Based On Selection:
25
Engineering & Technology / Chemical Engineering
Chemical Engineering | CO2 Utilisation | Process Intensification | Sustainable Polymers | NT
Chemical Engineering | CO2 Utilisation | Process Intensification | Sustainable Polymers | NT
H-Index Metrics
-
H-Index19
-
i10 Index27
-
Citation Counts1,290
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Premium Data
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