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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 01, 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 (1.131.755) 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].
* Total H Index Rankings
Rankings
4,170
World Rank
5
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Phytotoxicity and Phytoremidiation of heavy metals and industrial effluents | stress physiology | Environmental Science | biocha
Phytotoxicity and Phytoremidiation of heavy metals and industrial effluents | stress physiology | Environmental Science | biocha
H-Index Metrics
-
H-Index127
-
i10 Index632
-
Citation Counts63,402
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* Total H Index Rankings
Rankings
5,559
World Rank
6
Country Rank
1
University
Ranking Based On Selection:
2
Engineering & Technology / Metallurgical & Materials Engineering
Material Science | Particle/Health/Nuclear Physic
Material Science | Particle/Health/Nuclear Physic
H-Index Metrics
-
H-Index119
-
i10 Index496
-
Citation Counts52,105
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* Total H Index Rankings
Rankings
13,301
World Rank
14
Country Rank
1
University
Ranking Based On Selection:
3
Engineering & Technology / Mechanical Engineering
Mathematics | Applied Mathematics | Fluid Mechanic
Mathematics | Applied Mathematics | Fluid Mechanic
H-Index Metrics
-
H-Index94
-
i10 Index601
-
Citation Counts35,175
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* Total H Index Rankings
Rankings
14,284
World Rank
18
Country Rank
2
University
Ranking Based On Selection:
4
Engineering & Technology / Computer Science
Artificial Intelligence | Data Analytics | IoTs | Smart Grids | Blockchai
Artificial Intelligence | Data Analytics | IoTs | Smart Grids | Blockchai
H-Index Metrics
-
H-Index92
-
i10 Index629
-
Citation Counts34,395
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* Total H Index Rankings
Rankings
19,668
World Rank
26
Country Rank
1
University
Ranking Based On Selection:
5
Engineering & Technology / Computer Science
absorption | material engineering | rare earths recycling | NdFe
absorption | material engineering | rare earths recycling | NdFe
H-Index Metrics
-
H-Index84
-
i10 Index685
-
Citation Counts35,861
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* Total H Index Rankings
Rankings
25,231
World Rank
39
Country Rank
6
University
Ranking Based On Selection:
6
Engineering & Technology / Food Science and Engineering
Food Technology | non thermal processing | fruits and vegetable processin
Food Technology | non thermal processing | fruits and vegetable processin
H-Index Metrics
-
H-Index78
-
i10 Index278
-
Citation Counts19,416
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* Total H Index Rankings
Rankings
26,303
World Rank
42
Country Rank
1
University
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Waste biorefinery | Waste-to-energy | Biofuels | Circular economy | Bioeconom
Waste biorefinery | Waste-to-energy | Biofuels | Circular economy | Bioeconom
H-Index Metrics
-
H-Index77
-
i10 Index194
-
Citation Counts22,028
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* Total H Index Rankings
Rankings
28,588
World Rank
52
Country Rank
2
University
Ranking Based On Selection:
8
Engineering & Technology / Food Science and Engineering
Food chain contamination | health risk | remediation and biochar applicatio
Food chain contamination | health risk | remediation and biochar applicatio
H-Index Metrics
-
H-Index75
-
i10 Index259
-
Citation Counts27,058
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* Total H Index Rankings
Rankings
29,855
World Rank
54
Country Rank
1
University
Ranking Based On Selection:
9
Engineering & Technology / Electrical & Information Engineering
Human-centered AI | AI Ethics | Engineering Education | AI in Education | Healthcare A
Human-centered AI | AI Ethics | Engineering Education | AI in Education | Healthcare A
H-Index Metrics
-
H-Index74
-
i10 Index210
-
Citation Counts22,312
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* Total H Index Rankings
Rankings
32,955
World Rank
58
Country Rank
5
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
Environmental Health | Contaminants and Exposure | ecotoxicolog
Environmental Health | Contaminants and Exposure | ecotoxicolog
H-Index Metrics
-
H-Index72
-
i10 Index218
-
Citation Counts20,296
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* Total H Index Rankings
Rankings
40,681
World Rank
70
Country Rank
1
University
Ranking Based On Selection:
11
Engineering & Technology / Mechanical Engineering
Fluid Nanofluids Thermal Conductivity Heat Transfer Fluid Mechanics Computational Flui
Fluid Nanofluids Thermal Conductivity Heat Transfer Fluid Mechanics Computational Flui
H-Index Metrics
-
H-Index67
-
i10 Index284
-
Citation Counts14,490
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* Total H Index Rankings
Rankings
45,043
World Rank
80
Country Rank
2
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
48,916
World Rank
84
Country Rank
1
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
49,133
World Rank
87
Country Rank
1
University
Ranking Based On Selection:
14
Engineering & Technology / Environmental Science & Engineering
Energy System | Hydrogen Economy | Life Cycle Assessment | Science of Science | Techno-Economic Analysi
Energy System | Hydrogen Economy | Life Cycle Assessment | Science of Science | Techno-Economic Analysi
H-Index Metrics
-
H-Index63
-
i10 Index119
-
Citation Counts9,248
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* Total H Index Rankings
Rankings
51,537
World Rank
94
Country Rank
1
University
Ranking Based On Selection:
15
Engineering & Technology / Mechanical Engineering
CFD | Fluid dynamics | Heat Transfer | numerical | FE
CFD | Fluid dynamics | Heat Transfer | numerical | FE
H-Index Metrics
-
H-Index62
-
i10 Index149
-
Citation Counts12,290
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* Total H Index Rankings
Rankings
56,978
World Rank
110
Country Rank
5
University
Ranking Based On Selection:
16
Engineering & Technology / Mechanical Engineering
Fluid Dynamics: Peristalsis | Blood Flow | Swimming Microorganisms | Polymer Processing Flows | Bifurcation and Stability analysis
Fluid Dynamics: Peristalsis | Blood Flow | Swimming Microorganisms | Polymer Processing Flows | Bifurcation and Stability analysis
H-Index Metrics
-
H-Index60
-
i10 Index245
-
Citation Counts11,688
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* Total H Index Rankings
Rankings
58,922
World Rank
115
Country Rank
7
University
Ranking Based On Selection:
17
Engineering & Technology / Computer Science
Mathematics | Fuzzy Sets | Soft Sets | Rough Sets | Fuzzy Decision Makin
Mathematics | Fuzzy Sets | Soft Sets | Rough Sets | Fuzzy Decision Makin
H-Index Metrics
-
H-Index59
-
i10 Index238
-
Citation Counts13,488
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* Total H Index Rankings
Rankings
59,480
World Rank
119
Country Rank
3
University
Ranking Based On Selection:
18
Engineering & Technology / Computer Science
Document Image Analysis | OCR | Image Processing | Computer Vision | Machine Learnin
Document Image Analysis | OCR | Image Processing | Computer Vision | Machine Learnin
H-Index Metrics
-
H-Index59
-
i10 Index187
-
Citation Counts16,231
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* Total H Index Rankings
Rankings
67,939
World Rank
137
Country Rank
1
University
Ranking Based On Selection:
19
Engineering & Technology / Computer Science
Extreme Learning Machine | Intelligent Diagnosis | Smart traffic | computational intelligence an
Extreme Learning Machine | Intelligent Diagnosis | Smart traffic | computational intelligence an
H-Index Metrics
-
H-Index56
-
i10 Index249
-
Citation Counts13,144
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* Total H Index Rankings
Rankings
68,365
World Rank
142
Country Rank
1
University
Ranking Based On Selection:
20
Engineering & Technology / Computer Science
Deep Neural Networks | Machine Learning | Pattern Recognition | Deep Convolutional Neural Networks | an
Deep Neural Networks | Machine Learning | Pattern Recognition | Deep Convolutional Neural Networks | an
H-Index Metrics
-
H-Index56
-
i10 Index177
-
Citation Counts14,849
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* Total H Index Rankings
Rankings
68,474
World Rank
143
Country Rank
1
University
Ranking Based On Selection:
21
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
71,636
World Rank
152
Country Rank
7
University
Ranking Based On Selection:
22
Engineering & Technology / Food Science and Engineering
Development of rapid and non-invasive techniques in food analytic
Development of rapid and non-invasive techniques in food analytic
H-Index Metrics
-
H-Index55
-
i10 Index278
-
Citation Counts12,662
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* Total H Index Rankings
Rankings
72,156
World Rank
158
Country Rank
6
University
Ranking Based On Selection:
23
Engineering & Technology / Computer Science
medical image analysis | biometrics | pattern recognitio
medical image analysis | biometrics | pattern recognitio
H-Index Metrics
-
H-Index55
-
i10 Index224
-
Citation Counts11,077
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* Total H Index Rankings
Rankings
74,971
World Rank
163
Country Rank
9
University
Ranking Based On Selection:
24
Engineering & Technology / Mechanical Engineering
Fluid Mechanics | Heat Transfer | Phase Change Materials | Numerical Simulatio
Fluid Mechanics | Heat Transfer | Phase Change Materials | Numerical Simulatio
H-Index Metrics
-
H-Index54
-
i10 Index168
-
Citation Counts8,388
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* Total H Index Rankings
Rankings
75,004
World Rank
164
Country Rank
1
University
Ranking Based On Selection:
25
Engineering & Technology / Computer Science
Internet of Things (IoT) | Cloud Computing | Deep/Machine Learning | Virtual Reality-gaming | Qo
Internet of Things (IoT) | Cloud Computing | Deep/Machine Learning | Virtual Reality-gaming | Qo
H-Index Metrics
-
H-Index54
-
i10 Index142
-
Citation Counts9,585
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