Total 2,384,773 scientists, country 221, and institutions 24,456 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 26
Nanotechnology
Nanomaterials
Chemometrics
Sample preparation
Environmental Analytical Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
129
122
0.946
* Total i10 IndexRankings
Ranking Based On Selection: 27
Computational Fluid Dynamics
Fluid Dynamics
Heat and Mass Transfer
Multiphase Flow
Engineering Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
127
126
0.992
* Total i10 IndexRankings
Ranking Based On Selection: 28
Archaean geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
126
102
0.810
* Total i10 IndexRankings
Ranking Based On Selection: 29
Chemistry
Catalysis
Robotics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
119
84
0.706
* Total i10 IndexRankings
Ranking Based On Selection: 30
Urban Geography
Economic Geography
Tourism and Sustainablity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
117
93
0.795
* Total i10 IndexRankings
Ranking Based On Selection: 31
Postharvest Technology ⚙️
Agroprocessing💱
Edible coatings🔘
Valorisation ♻️
Pomegranate ✅
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
112
0.966
* Total i10 IndexRankings
Ranking Based On Selection: 32
Mathematical Physics
Theoretical Physics
Nonlinear Dynamics
Scientific Computing
Computer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
17
0.147
* Total i10 IndexRankings
Ranking Based On Selection: 33
igneous petrology
isotope geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
95
0.841
* Total i10 IndexRankings
Ranking Based On Selection: 34
Analytical Chemistry
Natural Products
Metabolomics
Forensic chemical analysis
UPLC-QTOF MS method development and analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
93
0.830
* Total i10 IndexRankings
Ranking Based On Selection: 35
Materials Sciences
Process Control
H2 & FC technologies
ALD technologies
System integration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
105
0.955
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* Total i10 IndexRankings
Ranking Based On Selection: 36
Optics
Vision
Astigmatism
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
17
0.156
* Total i10 IndexRankings
Ranking Based On Selection: 37
Food-Energy-Water Systems
Blockchain
Prescriptive Analytics
Machine Learning
Cyber-Physical Systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
108
105
0.972
* Total i10 IndexRankings
Ranking Based On Selection: 38
Nanoscience and Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
86
0.811
* Total i10 IndexRankings
Ranking Based On Selection: 39
Fish parasitology
metal accumulation
sentinel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
57
0.538
* Total i10 IndexRankings
Ranking Based On Selection: 40
Homogeneous and Heterogeneous Catalysis
Catalysts Synthesis
Coal to Liquids
Olefin
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
39
0.371
* Total i10 IndexRankings
Ranking Based On Selection: 41
Stone Age archaeology
human behavioural and cognitive evolution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
104
84
0.808
* Total i10 IndexRankings
Ranking Based On Selection: 42
Globalisation
Organisational behaviour
Industrial Relations
HR
Business
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
63
0.618
* Total i10 IndexRankings
Ranking Based On Selection: 43
Mycotoxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
96
0.950
* Total i10 IndexRankings
Ranking Based On Selection: 44
Transport property
Catalysis
Energy harvesting and storage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
57
0.576
* Total i10 IndexRankings
Ranking Based On Selection: 45
Fish haematology
Ecophysiology
Ecotoxicology
Biomarkers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
40
0.412
* Total i10 IndexRankings
Ranking Based On Selection: 46
Information Cyber Security
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
44
0.468
* Total i10 IndexRankings
Ranking Based On Selection: 47
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
39
0.415
* Total i10 IndexRankings
Ranking Based On Selection: 48
One Health
parasitology
biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
37
0.394
* Total i10 IndexRankings
Ranking Based On Selection: 49
Metamorphic Petrology
Field Geology
Tectonics
Evolution of High-Grade Terranes
Fluids
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
33
0.355
* Total i10 IndexRankings
Ranking Based On Selection: 50
Mycology
Environmental health
Mycotoxins
Food technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
36
0.391
Philiswa Nosizo Nomngongo
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
129
122
0.946
Nanotechnology
Nanomaterials
Chemometrics
Sample preparation
Environmental Analytical Chemistry
Muaaz Bhamjee
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
127
126
0.992
Computational Fluid Dynamics
Fluid Dynamics
Heat and Mass Transfer
Multiphase Flow
Engineering Education
Axel Hofmann
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
126
102
0.810
Reinout Meijboom
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
119
84
0.706
Jayne Rogerson
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
117
93
0.795
Urban Geography
Economic Geography
Tourism and Sustainablity
Olaniyi A. Fawole
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
112
0.966
Postharvest Technology ⚙️
Agroprocessing💱
Edible coatings🔘
Valorisation ♻️
Pomegranate ✅
Willi-Hans Steeb
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
17
0.147
Mathematical Physics
Theoretical Physics
Nonlinear Dynamics
Scientific Computing
Computer
Marlina A. Elburg
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
95
0.841
igneous petrology
isotope geochemistry
Paul Steenkamp
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
93
0.830
Analytical Chemistry
Natural Products
Metabolomics
Forensic chemical analysis
UPLC-QTOF MS method development and analysis
Jianwei Ren
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
105
0.955
Materials Sciences
Process Control
H2 & FC technologies
ALD technologies
System integration
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William Harris
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
17
0.156
Nnamdi I. Nwulu
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
108
105
0.972
Food-Energy-Water Systems
Blockchain
Prescriptive Analytics
Machine Learning
Cyber-Physical Systems
Patrick Ndungu
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
86
0.811
Nanoscience and Nanotechnology
Annemarie Avenant-Oldewage
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
57
0.538
Fish parasitology
metal accumulation
sentinel
James Darkwa
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
39
0.371
Homogeneous and Heterogeneous Catalysis
Catalysts Synthesis
Coal to Liquids
Olefin
Marlize Lombard
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
104
84
0.808
Stone Age archaeology
human behavioural and cognitive evolution
Wilfred Isioma Ukpere
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
63
0.618
Globalisation
Organisational behaviour
Industrial Relations
HR
Business
Patrick Njobeh
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
96
0.950
Kaushik Mallick
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
57
0.576
Transport property
Catalysis
Energy harvesting and storage
Jhj Van Vuren
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
40
0.412
Fish haematology
Ecophysiology
Ecotoxicology
Biomarkers
SH Basie B Von Solms
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
44
0.468
Information Cyber Security
CPH Myburgh
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
39
0.415
Rosina Claudia Krecek
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
37
0.394
One Health
parasitology
biology
Dirk Van Reenen
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
33
0.355
Metamorphic Petrology
Field Geology
Tectonics
Evolution of High-Grade Terranes
Fluids
Michael Dutton
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
36
0.391