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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 02, 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
1,051,521
World Rank
12
Country Rank
8
University
Ranking Based On Selection:
1
Engineering & Technology / Metallurgical & Materials Engineering
Biomaterials for Tissue Engineering | Nanocomposites material | Recycling waste plastic | Polymer–matr
Biomaterials for Tissue Engineering | Nanocomposites material | Recycling waste plastic | Polymer–matr
H-Index Metrics
-
H-Index10
-
i10 Index11
-
Citation Counts925
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* Total H Index Rankings
Rankings
1,055,795
World Rank
13
Country Rank
9
University
Ranking Based On Selection:
2
* Total H Index Rankings
Rankings
1,099,111
World Rank
15
Country Rank
11
University
Ranking Based On Selection:
3
* Total H Index Rankings
Rankings
1,199,035
World Rank
19
Country Rank
14
University
Ranking Based On Selection:
4
Engineering & Technology / Food Science and Engineering
Food Safety | Food and Nutrition Security | NSA | Food System
Food Safety | Food and Nutrition Security | NSA | Food System
H-Index Metrics
-
H-Index8
-
i10 Index8
-
Citation Counts373
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* Total H Index Rankings
Rankings
1,335,052
World Rank
21
Country Rank
16
University
Ranking Based On Selection:
5
* Total H Index Rankings
Rankings
1,496,176
World Rank
29
Country Rank
22
University
Ranking Based On Selection:
6
Engineering & Technology / Energy Engineering
Combustion | Biomass-bioenergy | CFD simulation | Energy engineering | Renewable energie
Combustion | Biomass-bioenergy | CFD simulation | Energy engineering | Renewable energie
H-Index Metrics
-
H-Index6
-
i10 Index5
-
Citation Counts146
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* Total H Index Rankings
Rankings
1,553,317
World Rank
32
Country Rank
25
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
1,593,882
World Rank
36
Country Rank
5
University
Ranking Based On Selection:
8
Engineering & Technology / Food Science and Engineering
Postharvest handling for food innovation and food safety technolog
Postharvest handling for food innovation and food safety technolog
H-Index Metrics
-
H-Index6
-
i10 Index2
-
Citation Counts84
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* Total H Index Rankings
Rankings
1,607,199
World Rank
37
Country Rank
29
University
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
1,637,423
World Rank
38
Country Rank
30
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
1,659,547
World Rank
40
Country Rank
32
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Land Sciences | Land use change | Ecosystem service and wellbeing | Climate change and resilienc
Land Sciences | Land use change | Ecosystem service and wellbeing | Climate change and resilienc
H-Index Metrics
-
H-Index5
-
i10 Index4
-
Citation Counts159
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* Total H Index Rankings
Rankings
1,662,565
World Rank
41
Country Rank
33
University
Ranking Based On Selection:
12
Engineering & Technology / Electrical & Electronic Engineering
Energy | Electronics | Telecommunication | Automation | Io
Energy | Electronics | Telecommunication | Automation | Io
H-Index Metrics
-
H-Index5
-
i10 Index4
-
Citation Counts141
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* Total H Index Rankings
Rankings
1,699,073
World Rank
47
Country Rank
39
University
Ranking Based On Selection:
13
Engineering & Technology / Food Science and Engineering
Food Safety | Natural Products | Biofuels | Biopladtics | Wastewater treatmen
Food Safety | Natural Products | Biofuels | Biopladtics | Wastewater treatmen
H-Index Metrics
-
H-Index5
-
i10 Index3
-
Citation Counts99
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* Total H Index Rankings
Rankings
1,810,056
World Rank
55
Country Rank
44
University
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
1,916,024
World Rank
63
Country Rank
9
University
Ranking Based On Selection:
15
Engineering & Technology / Food Science and Engineering
Biotechnology | Food science | Food processing | Food analysi
Biotechnology | Food science | Food processing | Food analysi
H-Index Metrics
-
H-Index4
-
i10 Index2
-
Citation Counts47
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* Total H Index Rankings
Rankings
1,957,770
World Rank
65
Country Rank
51
University
Ranking Based On Selection:
16
Engineering & Technology / Environmental Science & Engineering
Climate change | Environmental Modeling | Ecosystem Based Adaptation | Sustainability | Water Securit
Climate change | Environmental Modeling | Ecosystem Based Adaptation | Sustainability | Water Securit
H-Index Metrics
-
H-Index4
-
i10 Index0
-
Citation Counts34
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* Total H Index Rankings
Rankings
1,973,777
World Rank
68
Country Rank
54
University
Ranking Based On Selection:
17
Engineering & Technology / Civil Engineering
Construction Material | Concrete Technology | Concrete Structur
Construction Material | Concrete Technology | Concrete Structur
H-Index Metrics
-
H-Index4
-
i10 Index3
-
Citation Counts49
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* Total H Index Rankings
Rankings
1,979,162
World Rank
69
Country Rank
55
University
Ranking Based On Selection:
18
Engineering & Technology / Civil Engineering
Steel Structure ( transmission tower) | Bridge engineering | Dam Safety | Bamboo Structure | Architectur
Steel Structure ( transmission tower) | Bridge engineering | Dam Safety | Bamboo Structure | Architectur
H-Index Metrics
-
H-Index4
-
i10 Index2
-
Citation Counts74
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* Total H Index Rankings
Rankings
1,994,091
World Rank
71
Country Rank
57
University
Ranking Based On Selection:
19
* Total H Index Rankings
Rankings
2,010,219
World Rank
73
Country Rank
59
University
Ranking Based On Selection:
20
Engineering & Technology / Electrical & Information Engineering
Wireless Communication | RFID Technology | Science and Technolog
Wireless Communication | RFID Technology | Science and Technolog
H-Index Metrics
-
H-Index4
-
i10 Index2
-
Citation Counts56
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* Total H Index Rankings
Rankings
2,013,639
World Rank
74
Country Rank
60
University
Ranking Based On Selection:
21
Engineering & Technology / Electrical & Electronic Engineering
Optical Logic | Terahertz Technology | All Optical Gate | Ultra Wideband | Internet of Thin
Optical Logic | Terahertz Technology | All Optical Gate | Ultra Wideband | Internet of Thin
H-Index Metrics
-
H-Index4
-
i10 Index1
-
Citation Counts47
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* Total H Index Rankings
Rankings
2,016,766
World Rank
75
Country Rank
61
University
Ranking Based On Selection:
22
Engineering & Technology / Computer Science
Computer Science | Technology | Strategy development | Sports Science | Sport managemen
Computer Science | Technology | Strategy development | Sports Science | Sport managemen
H-Index Metrics
-
H-Index4
-
i10 Index0
-
Citation Counts37
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* Total H Index Rankings
Rankings
2,024,142
World Rank
79
Country Rank
65
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
2,026,889
World Rank
80
Country Rank
66
University
Ranking Based On Selection:
24
* Total H Index Rankings
Rankings
2,084,985
World Rank
85
Country Rank
70
University
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Climate change | Land use/land cover change | Forest change | development sustainability | GI
Climate change | Land use/land cover change | Forest change | development sustainability | GI
H-Index Metrics
-
H-Index3
-
i10 Index2
-
Citation Counts37
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Premium Data
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