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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 Dec 31, 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 (1.131.755) 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
2,866
World Rank
3
Country Rank
1
University
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
2,878
World Rank
4
Country Rank
3
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Water Treatment | Waste to Value-added Product
Water Treatment | Waste to Value-added Product
H-Index Metrics
-
H-Index140
-
i10 Index567
-
Citation Counts104,009
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* Total H Index Rankings
Rankings
6,752
World Rank
5
Country Rank
4
University
Ranking Based On Selection:
3
Engineering & Technology / Biomedical Engineering
Diabetes | obesity | glycation | methylglyoxal | glyoxalas
Diabetes | obesity | glycation | methylglyoxal | glyoxalas
H-Index Metrics
-
H-Index113
-
i10 Index300
-
Citation Counts47,066
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* Total H Index Rankings
Rankings
18,870
World Rank
13
Country Rank
3
University
Ranking Based On Selection:
4
Engineering & Technology / Metallurgical & Materials Engineering
Sensors | Renewable Energy | 3D Printing | Catalysis | Machine Learnin
Sensors | Renewable Energy | 3D Printing | Catalysis | Machine Learnin
H-Index Metrics
-
H-Index85
-
i10 Index315
-
Citation Counts23,869
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* Total H Index Rankings
Rankings
22,504
World Rank
14
Country Rank
4
University
Ranking Based On Selection:
5
Engineering & Technology / Mechanical Engineering
Advanced Materials | Digital Transformation | Road Safety | Quality Engineering | Resilienc
Advanced Materials | Digital Transformation | Road Safety | Quality Engineering | Resilienc
H-Index Metrics
-
H-Index81
-
i10 Index368
-
Citation Counts23,639
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* Total H Index Rankings
Rankings
23,970
World Rank
15
Country Rank
2
University
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
24,790
World Rank
18
Country Rank
5
University
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Membrane technology for water and wastewater treatmen
Membrane technology for water and wastewater treatmen
H-Index Metrics
-
H-Index79
-
i10 Index180
-
Citation Counts25,474
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* Total H Index Rankings
Rankings
25,299
World Rank
19
Country Rank
6
University
Ranking Based On Selection:
8
Engineering & Technology / Metallurgical & Materials Engineering
Nanomaterials | catalysis | Nanobiotechnolog
Nanomaterials | catalysis | Nanobiotechnolog
H-Index Metrics
-
H-Index78
-
i10 Index187
-
Citation Counts18,366
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* Total H Index Rankings
Rankings
27,689
World Rank
21
Country Rank
9
University
Ranking Based On Selection:
9
Engineering & Technology / Biomedical Engineering
Alzheimer's disease | Parkinson's disease | Neuroscience | Neurodegenerative diseases | protein misfoldin
Alzheimer's disease | Parkinson's disease | Neuroscience | Neurodegenerative diseases | protein misfoldin
H-Index Metrics
-
H-Index76
-
i10 Index165
-
Citation Counts25,516
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* Total H Index Rankings
Rankings
34,025
World Rank
25
Country Rank
9
University
Ranking Based On Selection:
10
Engineering & Technology / Mechanical Engineering
Biomaterials | Tissue Engineering | Bioprinting | Wound Healing | Artificial Intelligenc
Biomaterials | Tissue Engineering | Bioprinting | Wound Healing | Artificial Intelligenc
H-Index Metrics
-
H-Index71
-
i10 Index240
-
Citation Counts21,097
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* Total H Index Rankings
Rankings
37,379
World Rank
30
Country Rank
11
University
Ranking Based On Selection:
11
Engineering & Technology / Chemical Engineering
Ionic liquids | natural gas hydrates | membrane distilation CO2 conversion | wastewater treatment | adsorptio
Ionic liquids | natural gas hydrates | membrane distilation CO2 conversion | wastewater treatment | adsorptio
H-Index Metrics
-
H-Index69
-
i10 Index191
-
Citation Counts20,296
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* Total H Index Rankings
Rankings
40,632
World Rank
32
Country Rank
12
University
Ranking Based On Selection:
12
Engineering & Technology / Biomedical Engineering
Microbiology & Immunology Serology | Zebrafish Researc
Microbiology & Immunology Serology | Zebrafish Researc
H-Index Metrics
-
H-Index67
-
i10 Index182
-
Citation Counts18,833
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* Total H Index Rankings
Rankings
40,706
World Rank
33
Country Rank
13
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
40,883
World Rank
34
Country Rank
14
University
Ranking Based On Selection:
14
Engineering & Technology / Metallurgical & Materials Engineering
Polymers | Composites | Nanotechnology | Higher Educatio
Polymers | Composites | Nanotechnology | Higher Educatio
H-Index Metrics
-
H-Index67
-
i10 Index177
-
Citation Counts11,867
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* Total H Index Rankings
Rankings
44,054
World Rank
38
Country Rank
12
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
44,772
World Rank
39
Country Rank
16
University
Ranking Based On Selection:
16
Engineering & Technology / Electrical & Electronic Engineering
Power Electronics | Electric Drives | Renewable Energ
Power Electronics | Electric Drives | Renewable Energ
H-Index Metrics
-
H-Index65
-
i10 Index367
-
Citation Counts19,457
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* Total H Index Rankings
Rankings
50,168
World Rank
42
Country Rank
18
University
Ranking Based On Selection:
17
Engineering & Technology / Metallurgical & Materials Engineering
Polymer blends | composites and nanocomposite
Polymer blends | composites and nanocomposite
H-Index Metrics
-
H-Index63
-
i10 Index200
-
Citation Counts13,046
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* Total H Index Rankings
Rankings
51,337
World Rank
43
Country Rank
19
University
Ranking Based On Selection:
18
Engineering & Technology / Metallurgical & Materials Engineering
Polymer Nanocomposite | Fabrication | Sensors | Shape memory and Energy Storag
Polymer Nanocomposite | Fabrication | Sensors | Shape memory and Energy Storag
H-Index Metrics
-
H-Index62
-
i10 Index147
-
Citation Counts11,742
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* Total H Index Rankings
Rankings
52,015
World Rank
46
Country Rank
14
University
Ranking Based On Selection:
19
Engineering & Technology / Computer Science
AI driven Cybersecurity | Distributed Systems Security | Wireless Security | OSN Security and Privac
AI driven Cybersecurity | Distributed Systems Security | Wireless Security | OSN Security and Privac
H-Index Metrics
-
H-Index62
-
i10 Index204
-
Citation Counts17,376
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* Total H Index Rankings
Rankings
53,804
World Rank
49
Country Rank
21
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Analytical and environmental chemistry | Environmental Remediation | Validation method in analytical chemistry | Remediation | Adso
Analytical and environmental chemistry | Environmental Remediation | Validation method in analytical chemistry | Remediation | Adso
H-Index Metrics
-
H-Index61
-
i10 Index193
-
Citation Counts18,779
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* Total H Index Rankings
Rankings
56,307
World Rank
52
Country Rank
23
University
Ranking Based On Selection:
21
Engineering & Technology / Computer Science
Signal Processing | Pattern Recognition | Machine Intelligence | Data Minin
Signal Processing | Pattern Recognition | Machine Intelligence | Data Minin
H-Index Metrics
-
H-Index60
-
i10 Index197
-
Citation Counts24,987
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* Total H Index Rankings
Rankings
58,939
World Rank
53
Country Rank
1
University
Ranking Based On Selection:
22
Engineering & Technology / Food Science and Engineering
Food Security | Climate Change | Precision Agricultur
Food Security | Climate Change | Precision Agricultur
H-Index Metrics
-
H-Index59
-
i10 Index246
-
Citation Counts15,942
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* Total H Index Rankings
Rankings
59,009
World Rank
54
Country Rank
24
University
Ranking Based On Selection:
23
Engineering & Technology / Industrial & Manufacturing Engineering
Sustainability Assessment | Sustainability Management | Sustainable Technology | Systems Engineerin
Sustainability Assessment | Sustainability Management | Sustainable Technology | Systems Engineerin
H-Index Metrics
-
H-Index59
-
i10 Index103
-
Citation Counts10,059
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* Total H Index Rankings
Rankings
61,684
World Rank
56
Country Rank
25
University
Ranking Based On Selection:
24
Engineering & Technology / Biomedical Engineering
AI & Machine learning | Biomedical instrumentation | Digital Health | Material
AI & Machine learning | Biomedical instrumentation | Digital Health | Material
H-Index Metrics
-
H-Index58
-
i10 Index226
-
Citation Counts16,965
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* Total H Index Rankings
Rankings
61,692
World Rank
57
Country Rank
26
University
Ranking Based On Selection:
25
Engineering & Technology / Nanoscience and Nanotechnology
Hybrid composites | AEMWEs | ESCS | †: Equal contributio
Hybrid composites | AEMWEs | ESCS | †: Equal contributio
H-Index Metrics
-
H-Index58
-
i10 Index126
-
Citation Counts8,255
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