Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :1
Corrosion Electrochemistry
Electrochemical Technology
Membrane Transport
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
145
128
0.883
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :2
Animal health
Animal production
Animal nutrition
Livestock extension
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
53
0.552
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :3
Geo-informatics
Environmental Geosciences
Geothermal Energy
Exploration Geophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
45
0.865
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :4
Animal Physiology
Meta-analysis
Medicinal plants
Modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
40
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :5
Metal Speciation
Ecotoxicity
Soil-water-Air you
Impact Assessment
Microplastics.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
37
0.949
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :6
Applied Microbiology (Food and Industrial Microbiology)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
31
0.775
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :7
Hydrogeology
Environmental Geology
Hydrology
Machine Learning
Artificial intelligence
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
30
0.938
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :8
Polymer nanocomposites
Functional Protective Coatings
Corrosion & Corrosion Protection
Polymer Waste Management and Marine Pl
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
28
0.903
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :9
Polymer composites
Polymeric wastes mgt
Coatings
Corrosion inhibition
Molecular Simulation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
28
0.903
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :10
Thin films
Materials Science
Solid State Physics
Solar Cells
Semiconductors
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
27
0.771
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :11
Polymer Composites
Rubber Blends
Biomaterials
Tissue Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :12
Novel functional food ingredients
Food product development
Brewing and Beverage Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
25
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :13
Renewable Energy
Solar Thermal Energy Engineering
Solar Refrigeration
Environmental Pollution & Control Systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
23
0.742
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :14
microbiology
biotechnology
antimicrobial properties of plant extracts
indigenous food fermentations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
23
0.767
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :15
Lesser known
Non conventional food sources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
22
0.733
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :16
construction
construction materials and structural
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
21
0.618
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :17
Biochemical Toxicology
Nutrition
Environment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
20
0.556
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :18
RURAL SOCIOLOGY
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
20
0.741
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :19
Nanocomposite coatings
corrosion science and protection
tribology
polymer science and engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :20
Medicinal plants
Biomarkers of diseases
analytical biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
19
0.594
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :21
Civil Engineering and Structural Mechanics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
19
0.613
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :22
Functional Analysis
Fixed Point Theory
Operator Theory
Nonlinear Optimization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
19
0.792
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :23
Polymer Composites
Polymer Processing
Polymers for corrosion Protection
Biomedical Polymers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
19
0.826
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :24
Quantity Surveying
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
19
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :25
Food Processing Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
18
0.692
Emeka Oguzie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
145
128
0.883
Corrosion Electrochemistry
Electrochemical Technology
Membrane Transport
Ifeanyi Charles Okoli
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
53
0.552
Animal health
Animal production
Animal nutrition
Livestock extension
Alexander Iheanyichukwu Opara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
45
0.865
Geo-informatics
Environmental Geosciences
Geothermal Energy
Exploration Geophysics
Ogbuewu Ifeanyi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
40
0.667
Animal Physiology
Meta-analysis
Medicinal plants
Modelling
Verla Evelyn Ngozi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
37
0.949
Metal Speciation
Ecotoxicity
Soil-water-Air you
Impact Assessment
Microplastics.
Wesley Braide
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
31
0.775
Applied Microbiology (Food and Industrial Microbiology)
Obinna Chigoziem Akakuru
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
30
0.938
Hydrogeology
Environmental Geology
Hydrology
Machine Learning
Artificial intelligence
Innocent O. Arukalam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
28
0.903
Polymer nanocomposites
Functional Protective Coatings
Corrosion & Corrosion Protection
Polymer Waste Management and Marine Pl
Simeon Chukwudozie Nwanonenyi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
28
0.903
Polymer composites
Polymeric wastes mgt
Coatings
Corrosion inhibition
Molecular Simulation
Obi Kingsley Echendu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
27
0.771
Thin films
Materials Science
Solid State Physics
Solar Cells
Semiconductors
Henry Chinedu Obasi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
Polymer Composites
Rubber Blends
Biomaterials
Tissue Engineering
Ofoedu, Chigozie E.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
25
1.000
Novel functional food ingredients
Food product development
Brewing and Beverage Technology
Emmanuel Enyioma Anyanwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
23
0.742
Renewable Energy
Solar Thermal Energy Engineering
Solar Refrigeration
Environmental Pollution & Control Systems
Chika C. Ogueke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
23
0.767
microbiology
biotechnology
antimicrobial properties of plant extracts
indigenous food fermentations
Justina Nwosu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
22
0.733
Igbojiaku Anthony Ugonna
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
21
0.618
Ujowundu Cosmas Onyekachi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
20
0.556
Biochemical Toxicology
Nutrition
Environment
Chikaire, Jonadab Ubochioma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
20
0.741
Paul Chinonso Uzoma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Nanocomposite coatings
corrosion science and protection
tribology
polymer science and engineering
Chidi Uzoma Igwe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
19
0.594
Medicinal plants
Biomarkers of diseases
analytical biochemistry
Owus Mathias Ibearugbulem
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
19
0.613
Godwin Amechi Okeke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
19
0.792
Functional Analysis
Fixed Point Theory
Operator Theory
Nonlinear Optimization
IC Madufor
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
19
0.826
Polymer Composites
Polymer Processing
Polymers for corrosion Protection
Biomedical Polymers
Emmanuel Chidiebere Eze
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
19
1.000
Clifford Ifeanyi Owuamanam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
18
0.692
Food Processing Technology