Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as 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
Zoology
Hydrobiology
Fisheries
Aquaculture
Aquatic Ecology/Pollution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
27
0.659
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :2
Wide Band-Gap Semiconductor
Power Devices
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
26
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :3
Educational Management & Planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
21
0.840
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :4
Environmental Engineering
Environmental Remediation
Environmental Diagnostics
Soil Spectroscopy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
20
0.833
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :5
Environmental Microbiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
19
0.543
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :6
Skill development and evaluation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :7
Animal Physiology
Animal Production/ Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
17
0.708
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :8
Soil foundations
Hydrological processes
erosion
environment and ground resisitivity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
13
0.433
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :9
Applied Meteorology. & Environmental Management / Consultant
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
12
0.522
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :10
Chemical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
12
0.632
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :11
AGRICULTURE
ENERGY
ENGINEERING AND ENVIRONMENT
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :12
Environmental Pollution (Impact) Assessment
Environmental Chemistry
Water Air Soil Quality studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :13
Social History
History Of Nigerian Communities
Women Studies
Conflict Studies
Anthropology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :14
Fisheries
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
9
0.429
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :15
Mhd flows
Convection
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
9
0.643
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :16
Facilities Management
Urban Environmental Managemennt
Valuationn
Quality of Life
Town Planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
8
0.571
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :17
Property Development
Management
Project Management
Real Estate Sustainability
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :18
Natural Products/Medicinal Plants
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
7
0.583
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :19
Solid state Physics
Environmental Physics
Fluid Mechanics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
7
0.583
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :20
Aquaculture
Fisheries Biology and Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
7
0.636
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :21
Creep Analysis
Finite Element Modeling
Structural Stability
Local Construction Materials
Structural Dynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :22
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :23
Veterinary Parasitology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
5
0.200
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :24
Soil Fertility
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
5
0.417
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :25
Photo-degradation of synthetic and naturally occurring substances
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
4
0.400
Onome Augustina Bubu Davies
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
27
0.659
Zoology
Hydrobiology
Fisheries
Aquaculture
Aquatic Ecology/Pollution
Sirui Feng
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
26
1.000
Wide Band-Gap Semiconductor
Power Devices
Eric Amadi
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
21
0.840
Reuben Okparanma|R.N. Okparanma, Reuben Nwomandah Okparanma
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
20
0.833
Environmental Engineering
Environmental Remediation
Environmental Diagnostics
Soil Spectroscopy
Omokaro Obire
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
19
0.543
Okwelle P Chijioke
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
Skill development and evaluation
Onyema Joseph Owen
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
17
0.708
Animal Physiology
Animal Production/ Management
TKS Abam
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
13
0.433
Soil foundations
Hydrological processes
erosion
environment and ground resisitivity
Gobo Ae
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
12
0.522
Applied Meteorology. & Environmental Management / Consultant
Falilat Taiwo Ademikuyi
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
12
0.632
Asinyetogha Hilkiah Igoni
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
AGRICULTURE
ENERGY
ENGINEERING AND ENVIRONMENT
Ideriah Tubonimi Joseph Kio
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
Environmental Pollution (Impact) Assessment
Environmental Chemistry
Water Air Soil Quality studies
Jaja Jones Michael
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
Social History
History Of Nigerian Communities
Women Studies
Conflict Studies
Anthropology
Suanu Deekae
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
9
0.429
Chigozie Israel Cookey
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
9
0.643
Ebiwari Wokekoro
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
8
0.571
Facilities Management
Urban Environmental Managemennt
Valuationn
Quality of Life
Town Planning
Paulinus Woka Ihuah
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
8
0.800
Property Development
Management
Project Management
Real Estate Sustainability
Faithwin Obomanu
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
7
0.583
Natural Products/Medicinal Plants
Valentine Omubo Pepple
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
7
0.583
Solid state Physics
Environmental Physics
Fluid Mechanics
ADI George
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
7
0.636
Aquaculture
Fisheries Biology and Management
Maurice Ephraim
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
Creep Analysis
Finite Element Modeling
Structural Stability
Local Construction Materials
Structural Dynamics
Nnamdi Okoroma
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
Barineme Beke Fakae
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
5
0.200
Veterinary Parasitology
Ikpe Felix Nseowo
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
5
0.417
Godswill Fekarurhobo
Rivers State University of Science & Technology
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
4
0.400
Photo-degradation of synthetic and naturally occurring substances