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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 05, 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 (1.131.911) 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
14,845
World Rank
109
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Chemical Engineering
Engenharia Química | Engenharia de Alimentos | Química | Adsorption | Wastewater treatmen
Engenharia Química | Engenharia de Alimentos | Química | Adsorption | Wastewater treatmen
H-Index Metrics
-
H-Index91
-
i10 Index444
-
Citation Counts30,066
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* Total H Index Rankings
Rankings
32,989
World Rank
289
Country Rank
29
University
Ranking Based On Selection:
2
Engineering & Technology / Chemical Engineering
Processos Industriais de Engenharia Química / Especialidade: Processos Bioquímicos - Operações Industriais e Equipamentos
Processos Industriais de Engenharia Química / Especialidade: Processos Bioquímicos - Operações Industriais e Equipamentos
H-Index Metrics
-
H-Index72
-
i10 Index375
-
Citation Counts23,982
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* Total H Index Rankings
Rankings
37,521
World Rank
356
Country Rank
8
University
Ranking Based On Selection:
3
* Total H Index Rankings
Rankings
41,027
World Rank
399
Country Rank
6
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
45,884
World Rank
487
Country Rank
9
University
Ranking Based On Selection:
5
Engineering & Technology / Chemical Engineering
Engenharia Química | Termodinâmica | Biodiesel | Biotecnologia | Engenharia de Alimento
Engenharia Química | Termodinâmica | Biodiesel | Biotecnologia | Engenharia de Alimento
H-Index Metrics
-
H-Index65
-
i10 Index393
-
Citation Counts18,713
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* Total H Index Rankings
Rankings
49,367
World Rank
539
Country Rank
10
University
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
63,290
World Rank
782
Country Rank
5
University
Ranking Based On Selection:
7
Engineering & Technology / Chemical Engineering
particulate system | drying | solid-liquid separation | flotation | rotary dru
particulate system | drying | solid-liquid separation | flotation | rotary dru
H-Index Metrics
-
H-Index58
-
i10 Index176
-
Citation Counts9,161
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* Total H Index Rankings
Rankings
68,905
World Rank
885
Country Rank
45
University
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
79,425
World Rank
1,095
Country Rank
89
University
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
83,524
World Rank
1,190
Country Rank
17
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
84,088
World Rank
1,200
Country Rank
29
University
Ranking Based On Selection:
11
Engineering & Technology / Chemical Engineering
Têxtil | Petróleo | Meio mabiente | Produtos naturais | Simulaçã
Têxtil | Petróleo | Meio mabiente | Produtos naturais | Simulaçã
H-Index Metrics
-
H-Index52
-
i10 Index236
-
Citation Counts18,631
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* Total H Index Rankings
Rankings
84,427
World Rank
1,206
Country Rank
20
University
Ranking Based On Selection:
12
Engineering & Technology / Chemical Engineering
Engenharia de Bioprocessos | Bioprocess Engineering | Biochemical Engineerin
Engenharia de Bioprocessos | Bioprocess Engineering | Biochemical Engineerin
H-Index Metrics
-
H-Index52
-
i10 Index239
-
Citation Counts10,960
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* Total H Index Rankings
Rankings
90,440
World Rank
1,347
Country Rank
57
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
93,473
World Rank
1,422
Country Rank
1
University
Ranking Based On Selection:
14
Engineering & Technology / Chemical Engineering
adsorção | troca iônica | secagem | biodiesel | extração supercrític
adsorção | troca iônica | secagem | biodiesel | extração supercrític
H-Index Metrics
-
H-Index50
-
i10 Index164
-
Citation Counts8,417
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* Total H Index Rankings
Rankings
94,176
World Rank
1,447
Country Rank
21
University
Ranking Based On Selection:
15
Engineering & Technology / Chemical Engineering
Adsorption | Separation Processes | Biofuels | Biolubricant
Adsorption | Separation Processes | Biofuels | Biolubricant
H-Index Metrics
-
H-Index50
-
i10 Index125
-
Citation Counts7,939
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* Total H Index Rankings
Rankings
98,866
World Rank
1,572
Country Rank
120
University
Ranking Based On Selection:
16
Engineering & Technology / Chemical Engineering
biopolymers | natural polymers | biomaterials | qualit
biopolymers | natural polymers | biomaterials | qualit
H-Index Metrics
-
H-Index49
-
i10 Index135
-
Citation Counts10,739
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* Total H Index Rankings
Rankings
105,033
World Rank
1,735
Country Rank
126
University
Ranking Based On Selection:
17
Engineering & Technology / Chemical Engineering
Processos de Separação Difusionais: Convencionais e Não Convencionais - Modelagem | Simulação | Otimização e Trabalhos Experimentais - Termodinâmica Aplicada a Processos de Separaçã
Processos de Separação Difusionais: Convencionais e Não Convencionais - Modelagem | Simulação | Otimização e Trabalhos Experimentais - Termodinâmica Aplicada a Processos de Separaçã
H-Index Metrics
-
H-Index48
-
i10 Index201
-
Citation Counts9,774
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* Total H Index Rankings
Rankings
108,693
World Rank
1,836
Country Rank
42
University
Ranking Based On Selection:
18
Engineering & Technology / Chemical Engineering
Têxtil | Petróleo | Petroquímica | Meio ambiente | Transferência de mass
Têxtil | Petróleo | Petroquímica | Meio ambiente | Transferência de mass
H-Index Metrics
-
H-Index47
-
i10 Index159
-
Citation Counts7,641
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* Total H Index Rankings
Rankings
110,471
World Rank
1,899
Country Rank
35
University
Ranking Based On Selection:
19
Engineering & Technology / Chemical Engineering
Biochemical Engineering | Stabilization and Immobilization of Enzymes | Biofuels | Industrial Biotechnolog
Biochemical Engineering | Stabilization and Immobilization of Enzymes | Biofuels | Industrial Biotechnolog
H-Index Metrics
-
H-Index47
-
i10 Index125
-
Citation Counts6,203
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* Total H Index Rankings
Rankings
121,284
World Rank
2,169
Country Rank
166
University
Ranking Based On Selection:
20
Engineering & Technology / Chemical Engineering
Engenharia Química | Biotecnologia | Biorremediação | Enzimas | Microalga
Engenharia Química | Biotecnologia | Biorremediação | Enzimas | Microalga
H-Index Metrics
-
H-Index45
-
i10 Index137
-
Citation Counts6,848
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* Total H Index Rankings
Rankings
127,274
World Rank
2,334
Country Rank
57
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
127,309
World Rank
2,335
Country Rank
181
University
Ranking Based On Selection:
22
Engineering & Technology / Chemical Engineering
Nanobiotecnologia | Plasma-Rico em Plaquetas | Fermentaçã
Nanobiotecnologia | Plasma-Rico em Plaquetas | Fermentaçã
H-Index Metrics
-
H-Index44
-
i10 Index131
-
Citation Counts7,830
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* Total H Index Rankings
Rankings
133,863
World Rank
2,536
Country Rank
46
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
136,458
World Rank
2,640
Country Rank
4
University
Ranking Based On Selection:
24
Engineering & Technology / Chemical Engineering
Air pollution | ceramic filters | permeation through porous media | chemical process control | waste minimization and treatmen
Air pollution | ceramic filters | permeation through porous media | chemical process control | waste minimization and treatmen
H-Index Metrics
-
H-Index43
-
i10 Index101
-
Citation Counts5,472
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* Total H Index Rankings
Rankings
140,357
World Rank
2,735
Country Rank
47
University
Ranking Based On Selection:
25
Engineering & Technology / Chemical Engineering
Anaerobic reactors for wastewater treatment | Anaerobic hydrogen production from wastes | Anaerobic fluidized bed reacto
Anaerobic reactors for wastewater treatment | Anaerobic hydrogen production from wastes | Anaerobic fluidized bed reacto
H-Index Metrics
-
H-Index42
-
i10 Index107
-
Citation Counts4,746
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Premium Data
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