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University, Subject, Country, Region, World
Spain 297 Scientists Subject Rankings
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
6,276
World Rank
127
Country Rank
2
University
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
10,787
World Rank
213
Country Rank
12
University
Ranking Based On Selection:
2
Engineering & Technology / Chemical Engineering
micropollutants | Anaerobic treatment | Wastewater treatment | Environmental Engineerin
micropollutants | Anaerobic treatment | Wastewater treatment | Environmental Engineerin
H-Index Metrics
-
H-Index100
-
i10 Index381
-
Citation Counts35,415
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* Total H Index Rankings
Rankings
13,514
World Rank
265
Country Rank
4
University
Ranking Based On Selection:
3
Engineering & Technology / Chemical Engineering
waste-water treatment | environmental engineering | environmental electrochemistry engineerin
waste-water treatment | environmental engineering | environmental electrochemistry engineerin
H-Index Metrics
-
H-Index94
-
i10 Index448
-
Citation Counts30,598
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* Total H Index Rankings
Rankings
15,717
World Rank
308
Country Rank
8
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
15,771
World Rank
310
Country Rank
14
University
Ranking Based On Selection:
5
Engineering & Technology / Chemical Engineering
Life Cycle Assessment | Circular Economy | Carbon Footprint | Ecodesign | Biochemical Reactor
Life Cycle Assessment | Circular Economy | Carbon Footprint | Ecodesign | Biochemical Reactor
H-Index Metrics
-
H-Index90
-
i10 Index345
-
Citation Counts25,723
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* Total H Index Rankings
Rankings
18,541
World Rank
387
Country Rank
2
University
Ranking Based On Selection:
6
Engineering & Technology / Chemical Engineering
Chemical engineering | CO2 capture | Chemical Looping Combustion | Energy | Circulating fludized bed combustio
Chemical engineering | CO2 capture | Chemical Looping Combustion | Energy | Circulating fludized bed combustio
H-Index Metrics
-
H-Index86
-
i10 Index263
-
Citation Counts27,534
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* Total H Index Rankings
Rankings
19,748
World Rank
414
Country Rank
7
University
Ranking Based On Selection:
7
Engineering & Technology / Chemical Engineering
Biorefinery | lignin | cellulose | chemical engineerin
Biorefinery | lignin | cellulose | chemical engineerin
H-Index Metrics
-
H-Index84
-
i10 Index296
-
Citation Counts24,975
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* Total H Index Rankings
Rankings
20,104
World Rank
421
Country Rank
3
University
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
22,646
World Rank
485
Country Rank
11
University
Ranking Based On Selection:
9
Engineering & Technology / Chemical Engineering
Porous materials | Zeolites | MOFs | Membranes | Encapsulatio
Porous materials | Zeolites | MOFs | Membranes | Encapsulatio
H-Index Metrics
-
H-Index81
-
i10 Index244
-
Citation Counts21,292
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* Total H Index Rankings
Rankings
25,461
World Rank
552
Country Rank
45
University
Ranking Based On Selection:
10
Engineering & Technology / Chemical Engineering
Electrochemistry | electrochemical engineering | water treatment | electro-Fento
Electrochemistry | electrochemical engineering | water treatment | electro-Fento
H-Index Metrics
-
H-Index78
-
i10 Index195
-
Citation Counts25,815
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* Total H Index Rankings
Rankings
26,376
World Rank
569
Country Rank
11
University
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
26,382
World Rank
570
Country Rank
11
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
37,903
World Rank
842
Country Rank
6
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
38,062
World Rank
845
Country Rank
3
University
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
40,071
World Rank
914
Country Rank
7
University
Ranking Based On Selection:
15
Engineering & Technology / Chemical Engineering
ingenieria quimica | materiales de carbono | pilas de combustible | catalizadores | electrolizadore
ingenieria quimica | materiales de carbono | pilas de combustible | catalizadores | electrolizadore
H-Index Metrics
-
H-Index68
-
i10 Index239
-
Citation Counts14,094
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* Total H Index Rankings
Rankings
40,997
World Rank
928
Country Rank
18
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
41,036
World Rank
931
Country Rank
19
University
Ranking Based On Selection:
17
Engineering & Technology / Chemical Engineering
Sustainable Process Systems Engineering | Life Cycle Sustainability Assessment | Process Optimizatio
Sustainable Process Systems Engineering | Life Cycle Sustainability Assessment | Process Optimizatio
H-Index Metrics
-
H-Index67
-
i10 Index217
-
Citation Counts14,487
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* Total H Index Rankings
Rankings
42,955
World Rank
978
Country Rank
6
University
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
43,145
World Rank
984
Country Rank
24
University
Ranking Based On Selection:
19
Engineering & Technology / Chemical Engineering
Chemical Engineering | Life Cycle Assessment | Sustainable Agri-food Biorefineries | Circular Economy | Sustainable diet
Chemical Engineering | Life Cycle Assessment | Sustainable Agri-food Biorefineries | Circular Economy | Sustainable diet
H-Index Metrics
-
H-Index66
-
i10 Index168
-
Citation Counts11,295
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* Total H Index Rankings
Rankings
43,672
World Rank
996
Country Rank
16
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
45,723
World Rank
1,058
Country Rank
83
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
46,890
World Rank
1,089
Country Rank
25
University
Ranking Based On Selection:
22
* Total H Index Rankings
Rankings
49,664
World Rank
1,161
Country Rank
18
University
Ranking Based On Selection:
23
Engineering & Technology / Chemical Engineering
Ingeniería Química | Chemical Engineering | Membrane separation | Electrooxidatio
Ingeniería Química | Chemical Engineering | Membrane separation | Electrooxidatio
H-Index Metrics
-
H-Index63
-
i10 Index166
-
Citation Counts13,113
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* Total H Index Rankings
Rankings
54,786
World Rank
1,308
Country Rank
17
University
Ranking Based On Selection:
24
Engineering & Technology / Chemical Engineering
Catalysis | Energy | Chemical Engineering | Pollution Control | Green Chemistr
Catalysis | Energy | Chemical Engineering | Pollution Control | Green Chemistr
H-Index Metrics
-
H-Index61
-
i10 Index192
-
Citation Counts11,458
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* Total H Index Rankings
Rankings
56,356
World Rank
1,355
Country Rank
21
University
Ranking Based On Selection:
25
Engineering & Technology / Chemical Engineering
Chemical Engineering | Pyrolysis | Spouted Bed | Biomass | Waste
Chemical Engineering | Pyrolysis | Spouted Bed | Biomass | Waste
H-Index Metrics
-
H-Index60
-
i10 Index90
-
Citation Counts12,533
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Premium Data
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