University, Subject, Country, Region, World
Open University of Sri Lanka 331 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 6 years. As of Mar 02, 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 (941.641) 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 IndexRankings
Ranking Based On Selection: 1
Dye Sensitized Solar cells
Nano materials
Conducting Polymers
Polymer Electrolytes
ECDs
Metrics
H-Index
i10 Index
Citation Counts
31
62
3,651
* Total H IndexRankings
Ranking Based On Selection: 2
Metrics
H-Index
i10 Index
Citation Counts
22
29
2,717
* Total H IndexRankings
Ranking Based On Selection: 3
Solar Energy & Storage Batteries
Metrics
H-Index
i10 Index
Citation Counts
21
29
2,345
* Total H IndexRankings
Ranking Based On Selection: 4
Inorganic Chemistry
Organometallic chemistry
Catalysis
Boron Chemistry
Metrics
H-Index
i10 Index
Citation Counts
19
42
1,327
* Total H IndexRankings
Ranking Based On Selection: 5
Medical Entomology
Vector biology
Metrics
H-Index
i10 Index
Citation Counts
17
21
872
* Total H IndexRankings
Ranking Based On Selection: 6
Educational Technology
e-Learning
Open Educational Resources
Instructional Design
Metrics
H-Index
i10 Index
Citation Counts
16
24
803
* Total H IndexRankings
Ranking Based On Selection: 7
Organic Chemistry
Metrics
H-Index
i10 Index
Citation Counts
16
25
985
* Total H IndexRankings
Ranking Based On Selection: 8
Ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
15
17
864
* Total H IndexRankings
Ranking Based On Selection: 9
Groundwater resources
Climate change
Water Management
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,112
* Total H IndexRankings
Ranking Based On Selection: 10
Silicon and plant research
Food Science
Mycology
Horticulture
Metrics
H-Index
i10 Index
Citation Counts
13
13
897
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* Total H IndexRankings
Ranking Based On Selection: 11
Climate Change impact
Forest Ecosystem Distribution
Land use change and Soil carbon
Plant Systematics
Neural Net Works
Metrics
H-Index
i10 Index
Citation Counts
13
16
688
* Total H IndexRankings
Ranking Based On Selection: 12
Marketing
leadership
Teaching and Learning
Metrics
H-Index
i10 Index
Citation Counts
12
14
681
* Total H IndexRankings
Ranking Based On Selection: 13
parasitology
Wildlife
Evolutionary Biology
Metrics
H-Index
i10 Index
Citation Counts
12
13
364
* Total H IndexRankings
Ranking Based On Selection: 14
Psychology
Social Work
Interprofessional Education
Multidisciplinary team work practice
Metrics
H-Index
i10 Index
Citation Counts
11
12
936
* Total H IndexRankings
Ranking Based On Selection: 15
Pharmacognosy
Animal Physiology
Toxicology
Metrics
H-Index
i10 Index
Citation Counts
11
12
835
* Total H IndexRankings
Ranking Based On Selection: 16
Plant pathology
Postharvest of fruits and vegetables
Metrics
H-Index
i10 Index
Citation Counts
11
12
316
* Total H IndexRankings
Ranking Based On Selection: 17
Network traffic
self similarity
satellite communication systems
Metrics
H-Index
i10 Index
Citation Counts
11
12
439
* Total H IndexRankings
Ranking Based On Selection: 18
Computational Chemistry
Photo Chemistry
Inorganic Chemistry
Metrics
H-Index
i10 Index
Citation Counts
11
11
260
* Total H IndexRankings
Ranking Based On Selection: 19
Kansei Engineering
Affective Computing
online learning
Metrics
H-Index
i10 Index
Citation Counts
11
12
321
* Total H IndexRankings
Ranking Based On Selection: 20
Soil Microbial Ecology
Soil Chemistry
Metrics
H-Index
i10 Index
Citation Counts
10
10
906
* Total H IndexRankings
Ranking Based On Selection: 21
Immunology
Metrics
H-Index
i10 Index
Citation Counts
10
10
412
* Total H IndexRankings
Ranking Based On Selection: 22
Genetics
Plant Breeding
Molecular Genetics and Tissue Culture
Herbicide Resistance in Crops
Nano-fertilizer
Metrics
H-Index
i10 Index
Citation Counts
10
11
417
* Total H IndexRankings
Ranking Based On Selection: 23
Educational Technology
Online Learning
Online Tutoring
Instructional Design
Metrics
H-Index
i10 Index
Citation Counts
10
10
393
* Total H IndexRankings
Ranking Based On Selection: 24
Geology
Petrology
Mineralogy
Geochemistry
Geophysics
Metrics
H-Index
i10 Index
Citation Counts
10
10
385
* Total H IndexRankings
Ranking Based On Selection: 25
Technical Textiles
Textile & Apparel Technology
Open and Distance Learning
Open Educational
Metrics
H-Index
i10 Index
Citation Counts
10
10
202
Gkr Senadeera
Metrics
H-Index
i10-Index
Citation Counts
31
62
3,651
Dye Sensitized Solar cells
Nano materials
Conducting Polymers
Polymer Electrolytes
ECDs
Vpsperera
Metrics
H-Index
i10-Index
Citation Counts
22
29
2,717
VP Susira Perera
Metrics
H-Index
i10-Index
Citation Counts
21
29
2,345
Solar Energy & Storage Batteries
Sarath D Perera
Metrics
H-Index
i10-Index
Citation Counts
19
42
1,327
Inorganic Chemistry
Organometallic chemistry
Catalysis
Boron Chemistry
Pavilupillai Justin Jude
Metrics
H-Index
i10-Index
Citation Counts
17
21
872
Medical Entomology
Vector biology
Shironica P Karunanayaka
Metrics
H-Index
i10-Index
Citation Counts
16
24
803
Educational Technology
e-Learning
Open Educational Resources
Instructional Design
Kamal B Gunaherath
Metrics
H-Index
i10-Index
Citation Counts
16
25
985
Uthpala Apekshani Jayawardena
Metrics
H-Index
i10-Index
Citation Counts
15
17
864
Christina Shanthi De Silva
Metrics
H-Index
i10-Index
Citation Counts
14
18
1,112
Groundwater resources
Climate change
Water Management
Darshani Weerahewa
Metrics
H-Index
i10-Index
Citation Counts
13
13
897
Silicon and plant research
Food Science
Mycology
Horticulture
Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.
S Somaratne
Metrics
H-Index
i10-Index
Citation Counts
13
16
688
Climate Change impact
Forest Ecosystem Distribution
Land use change and Soil carbon
Plant Systematics
Neural Net Works
Nalin Abeysekera
Metrics
H-Index
i10-Index
Citation Counts
12
14
681
Marketing
leadership
Teaching and Learning
TS P Fernando
Metrics
H-Index
i10-Index
Citation Counts
12
13
364
parasitology
Wildlife
Evolutionary Biology
Hmcj Herath
Metrics
H-Index
i10-Index
Citation Counts
11
12
936
Psychology
Social Work
Interprofessional Education
Multidisciplinary team work practice
Chanika D Jayasinghe
Metrics
H-Index
i10-Index
Citation Counts
11
12
835
Pharmacognosy
Animal Physiology
Toxicology
Kolchathurika Karunanayake
Metrics
H-Index
i10-Index
Citation Counts
11
12
316
Plant pathology
Postharvest of fruits and vegetables
Uthpala Premarathne
Metrics
H-Index
i10-Index
Citation Counts
11
12
439
Network traffic
self similarity
satellite communication systems
R Senthilnithy
Metrics
H-Index
i10-Index
Citation Counts
11
11
260
Computational Chemistry
Photo Chemistry
Inorganic Chemistry
Ajith Madurapperuma
Metrics
H-Index
i10-Index
Citation Counts
11
12
321
Kansei Engineering
Affective Computing
online learning
Mihiri Seneviratne
Metrics
H-Index
i10-Index
Citation Counts
10
10
906
Soil Microbial Ecology
Soil Chemistry
DT Wijeratne
Metrics
H-Index
i10-Index
Citation Counts
10
10
412
Sr Weerakoon
Metrics
H-Index
i10-Index
Citation Counts
10
11
417
Genetics
Plant Breeding
Molecular Genetics and Tissue Culture
Herbicide Resistance in Crops
Nano-fertilizer
Bg Jayatilleke|Buddhini Gayathri Jayatilleke
Metrics
H-Index
i10-Index
Citation Counts
10
10
393
Educational Technology
Online Learning
Online Tutoring
Instructional Design
Gwar Fernando
Metrics
H-Index
i10-Index
Citation Counts
10
10
385
Geology
Petrology
Mineralogy
Geochemistry
Geophysics
Samuel Anbahan Ariadurai
Metrics
H-Index
i10-Index
Citation Counts
10
10
202
Technical Textiles
Textile & Apparel Technology
Open and Distance Learning
Open Educational