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. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
1,179,464
Country Rank
8,093
Institution Rank : 1,029
![](https://cdn.adscientificindex.com/logos/10906.jpg)
![South Africa](/flags/za.png)
![Mokone Roberts](/user/assets/images/profile/no-profile-photo.png)
Energy Research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 Index Rankings
World Rank
1,182,251
Country Rank
8,112
Institution Rank : 184
![](https://cdn.adscientificindex.com/logos/15659.jpg)
![South Africa](/flags/za.png)
![Tshiamo Segakweng](https://cdn.adscientificindex.com/pictures/b8/4642543.jpg)
Hydrogen Storage
Polymer Science
Renewable energy
Metal Organic Frameworks
Energy Storage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 Index Rankings
World Rank
1,182,352
Country Rank
8,113
Institution Rank : 40
![](https://cdn.adscientificindex.com/logos/11663.png)
![South Africa](/flags/za.png)
![Mologadi Nkiyase Rantho](https://cdn.adscientificindex.com/pictures/10/4642379.jpg)
Electrochemistry
Nanomaterial
Nanotechnology
Energy storage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 Index Rankings
World Rank
1,187,715
Country Rank
8,160
Institution Rank : 488
![](https://cdn.adscientificindex.com/logos/11384.jpg)
![South Africa](/flags/za.png)
![Gayi Nyongombe](https://cdn.adscientificindex.com/pictures/1f/4914631.jpg)
Material Science
Nano Science
Energy Conversion
Energy storage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 Index Rankings
World Rank
1,199,798
Country Rank
8,325
Institution Rank : 509
![](https://cdn.adscientificindex.com/logos/11384.jpg)
![South Africa](/flags/za.png)
![Sreedhar Doraswamy](https://cdn.adscientificindex.com/pictures/eb/4643051.jpg)
Energy & Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 Index Rankings
World Rank
1,203,584
Country Rank
8,374
Institution Rank : 638
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Kirsty Veale](/user/assets/images/profile/no-profile-photo.png)
Aerospace
Renewable Energy
Solar
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 Index Rankings
World Rank
1,204,668
Country Rank
8,386
Institution Rank : 149
![](https://cdn.adscientificindex.com/logos/1205.png)
![South Africa](/flags/za.png)
![Nkosikho Dlangamandla](/user/assets/images/profile/no-profile-photo.png)
Renewable Energy/Water Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 Index Rankings
World Rank
1,206,281
Country Rank
8,404
Institution Rank : 864
![](https://cdn.adscientificindex.com/logos/8529.jpg)
![South Africa](/flags/za.png)
![Willem Nel](/user/assets/images/profile/no-profile-photo.png)
Energy
Sustainability
Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 Index Rankings
World Rank
1,207,633
Country Rank
8,419
Institution Rank : 519
![](https://cdn.adscientificindex.com/logos/11384.jpg)
![South Africa](/flags/za.png)
![James Alistair Fox](/user/assets/images/profile/no-profile-photo.png)
Energy
Applied Thermodynamics
Chemical Engineering
Energy Efficiency and Optimization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 Index Rankings
World Rank
1,207,667
Country Rank
8,420
Institution Rank : 150
![](https://cdn.adscientificindex.com/logos/1205.png)
![South Africa](/flags/za.png)
![Kant Kanyarusoke](/user/assets/images/profile/no-profile-photo.png)
Solar Energy
Renewable Energy
Applied Thermal Engineering
Mech. Eng Design
Engineering Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Total i10 Index Rankings
World Rank
1,216,514
Country Rank
8,518
Institution Rank : 57
![](https://cdn.adscientificindex.com/logos/11599.png)
![South Africa](/flags/za.png)
![Pragasen Mudali](/user/assets/images/profile/no-profile-photo.png)
Energy-efficiency of Wireless Ad-hoc Networks
Topology Control
Connectivity Strategies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
2
0.400
* Total i10 Index Rankings
World Rank
1,221,097
Country Rank
8,567
Institution Rank : 773
![](https://cdn.adscientificindex.com/logos/11299.jpg)
![South Africa](/flags/za.png)
![Philip De Vaal](https://cdn.adscientificindex.com/pictures/2a/4637667.jpg)
Process Modelling
Process Control
Lubricants
Energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
2
0.400
* Total i10 Index Rankings
World Rank
1,227,999
Country Rank
8,632
Institution Rank : 651
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Emmanuel Idoko Onuh](/user/assets/images/profile/no-profile-photo.png)
Renewable Energy and Internal Combustion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,229,208
Country Rank
8,645
Institution Rank : 653
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Daneal Rorke](/user/assets/images/profile/no-profile-photo.png)
Renewable energy
Waste valorisation
Fermentation
Biomass conversion
Biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,232,143
Country Rank
8,681
Institution Rank : 45
![](https://cdn.adscientificindex.com/logos/11663.png)
![South Africa](/flags/za.png)
![Musamba Banza Jean Claude](https://cdn.adscientificindex.com/pictures/20/4914924.jpg)
adsorption
ion exchange
nanotechnology
water and wastewater treatment
renewable energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,232,207
Country Rank
8,682
Institution Rank : 46
![](https://cdn.adscientificindex.com/logos/11663.png)
![South Africa](/flags/za.png)
![Lawrence Koech|Lawrence Kipyegon](https://cdn.adscientificindex.com/pictures/5b/4914914.jpg)
Emission control
waste to energy
renewable energy
water treatment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,236,810
Country Rank
8,735
Institution Rank : 708
![](https://cdn.adscientificindex.com/logos/11098.jpg)
![South Africa](/flags/za.png)
![Nhlanhla Nkosi](https://cdn.adscientificindex.com/pictures/79/4642793.jpg)
Chemical engineering
waste to energy
modelling and simulations
sustainable development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,244,687
Country Rank
8,836
Institution Rank : 715
![](https://cdn.adscientificindex.com/logos/11098.jpg)
![South Africa](/flags/za.png)
![Kunle Ibukun Olatayo](/user/assets/images/profile/no-profile-photo.png)
Engineering Management
Circular Economy
Environmental Sustainability
Material Flow and Value Chain
Alternative Energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,253,541
Country Rank
8,919
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/25400.gif)
![South Africa](/flags/za.png)
![Ulrich Minnaar](https://cdn.adscientificindex.com/pictures/31/4965416.jpg)
electrical engineering
power systems
power quality
renewable energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,255,427
Country Rank
8,940
Institution Rank : 49
![](https://cdn.adscientificindex.com/logos/11663.png)
![South Africa](/flags/za.png)
![Julius I. Osayi](https://cdn.adscientificindex.com/pictures/5b/4641492.jpg)
Renewable energy
pyrolysis
fuel cell
nanotechnology
oil and gas
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,257,383
Country Rank
8,959
Institution Rank : 909
![](https://cdn.adscientificindex.com/logos/8529.jpg)
![South Africa](/flags/za.png)
![Michael Ritchie](https://cdn.adscientificindex.com/pictures/3d/4641808.jpg)
Data Science
Energy optimisation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,260,677
Country Rank
9,002
Institution Rank : 73
![](https://cdn.adscientificindex.com/logos/15654.png)
![South Africa](/flags/za.png)
![Sipho Sibanda|Sibanda Sipho](https://cdn.adscientificindex.com/pictures/95/4914178.jpg)
Postharvest
Mechanisation
Precision agriculture
Renewable energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,264,956
Country Rank
9,046
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/25400.gif)
![South Africa](/flags/za.png)
![Warren James Farmer](https://cdn.adscientificindex.com/pictures/99/5011340.jpg)
Power system frequency stability
Virtual inertia
Renewable energy integration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,276,021
Country Rank
9,130
Institution Rank : 161
![](https://cdn.adscientificindex.com/logos/9040.png)
![South Africa](/flags/za.png)
![Mabel U. Olanipekun](https://cdn.adscientificindex.com/pictures/0a/4649588.jpg)
Solar Energy
Renewable Energy
Optimization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,283,036
Country Rank
9,193
Institution Rank : 31
![](https://cdn.adscientificindex.com/logos/5494.png)
![South Africa](/flags/za.png)
![Chiemela Onunka](https://cdn.adscientificindex.com/pictures/31/4642485.jpg)
Autonomous Systems
Robotics
Mechatronics
Renewable Energy
Energy Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,179,464
![South Africa](/flags/za.png)
8,093
![](https://cdn.adscientificindex.com/logos/10906.jpg)
1,029
Mokone Roberts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,182,251
![South Africa](/flags/za.png)
8,112
![](https://cdn.adscientificindex.com/logos/15659.jpg)
184
Tshiamo Segakweng
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
![](https://cdn.adscientificindex.com/logos/15659.jpg)
Hydrogen Storage
Polymer Science
Renewable energy
Metal Organic Frameworks
Energy Storage
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,182,352
![South Africa](/flags/za.png)
8,113
![](https://cdn.adscientificindex.com/logos/11663.png)
40
Mologadi Nkiyase Rantho
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
![](https://cdn.adscientificindex.com/logos/11663.png)
Electrochemistry
Nanomaterial
Nanotechnology
Energy storage
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,187,715
![South Africa](/flags/za.png)
8,160
![](https://cdn.adscientificindex.com/logos/11384.jpg)
488
Gayi Nyongombe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
![](https://cdn.adscientificindex.com/logos/11384.jpg)
Material Science
Nano Science
Energy Conversion
Energy storage
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,199,798
![South Africa](/flags/za.png)
8,325
![](https://cdn.adscientificindex.com/logos/11384.jpg)
509
Sreedhar Doraswamy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
![](https://cdn.adscientificindex.com/logos/11384.jpg)
Energy & Nanotechnology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,203,584
![South Africa](/flags/za.png)
8,374
![](https://cdn.adscientificindex.com/logos/11125.png)
638
Kirsty Veale
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
![](https://cdn.adscientificindex.com/logos/11125.png)
Aerospace
Renewable Energy
Solar
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,204,668
![South Africa](/flags/za.png)
8,386
![](https://cdn.adscientificindex.com/logos/1205.png)
149
Nkosikho Dlangamandla
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,206,281
![South Africa](/flags/za.png)
8,404
![](https://cdn.adscientificindex.com/logos/8529.jpg)
864
Willem Nel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
![](https://cdn.adscientificindex.com/logos/8529.jpg)
Energy
Sustainability
Engineering
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,207,633
![South Africa](/flags/za.png)
8,419
![](https://cdn.adscientificindex.com/logos/11384.jpg)
519
James Alistair Fox
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
![](https://cdn.adscientificindex.com/logos/11384.jpg)
Energy
Applied Thermodynamics
Chemical Engineering
Energy Efficiency and Optimization
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,207,667
![South Africa](/flags/za.png)
8,420
![](https://cdn.adscientificindex.com/logos/1205.png)
150
Kant Kanyarusoke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
![](https://cdn.adscientificindex.com/logos/1205.png)
Solar Energy
Renewable Energy
Applied Thermal Engineering
Mech. Eng Design
Engineering Education
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,216,514
![South Africa](/flags/za.png)
8,518
![](https://cdn.adscientificindex.com/logos/11599.png)
57
Pragasen Mudali
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
2
0.400
![](https://cdn.adscientificindex.com/logos/11599.png)
Energy-efficiency of Wireless Ad-hoc Networks
Topology Control
Connectivity Strategies
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,221,097
![South Africa](/flags/za.png)
8,567
![](https://cdn.adscientificindex.com/logos/11299.jpg)
773
Philip De Vaal
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
2
0.400
![](https://cdn.adscientificindex.com/logos/11299.jpg)
Process Modelling
Process Control
Lubricants
Energy
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,227,999
![South Africa](/flags/za.png)
8,632
![](https://cdn.adscientificindex.com/logos/11125.png)
651
Emmanuel Idoko Onuh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11125.png)
Renewable Energy and Internal Combustion
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,229,208
![South Africa](/flags/za.png)
8,645
![](https://cdn.adscientificindex.com/logos/11125.png)
653
Daneal Rorke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11125.png)
Renewable energy
Waste valorisation
Fermentation
Biomass conversion
Biotechnology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,232,143
![South Africa](/flags/za.png)
8,681
![](https://cdn.adscientificindex.com/logos/11663.png)
45
Musamba Banza Jean Claude
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11663.png)
adsorption
ion exchange
nanotechnology
water and wastewater treatment
renewable energy
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,232,207
![South Africa](/flags/za.png)
8,682
![](https://cdn.adscientificindex.com/logos/11663.png)
46
Lawrence Koech|Lawrence Kipyegon
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11663.png)
Emission control
waste to energy
renewable energy
water treatment
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,236,810
![South Africa](/flags/za.png)
8,735
![](https://cdn.adscientificindex.com/logos/11098.jpg)
708
Nhlanhla Nkosi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11098.jpg)
Chemical engineering
waste to energy
modelling and simulations
sustainable development
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,244,687
![South Africa](/flags/za.png)
8,836
![](https://cdn.adscientificindex.com/logos/11098.jpg)
715
Kunle Ibukun Olatayo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11098.jpg)
Engineering Management
Circular Economy
Environmental Sustainability
Material Flow and Value Chain
Alternative Energy
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,253,541
![South Africa](/flags/za.png)
8,919
![](https://cdn.adscientificindex.com/logos/25400.gif)
4
Ulrich Minnaar
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/25400.gif)
electrical engineering
power systems
power quality
renewable energy
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,255,427
![South Africa](/flags/za.png)
8,940
![](https://cdn.adscientificindex.com/logos/11663.png)
49
Julius I. Osayi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/11663.png)
Renewable energy
pyrolysis
fuel cell
nanotechnology
oil and gas
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,257,383
![South Africa](/flags/za.png)
8,959
![](https://cdn.adscientificindex.com/logos/8529.jpg)
909
Michael Ritchie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/8529.jpg)
Data Science
Energy optimisation
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,260,677
![South Africa](/flags/za.png)
9,002
![](https://cdn.adscientificindex.com/logos/15654.png)
73
Sipho Sibanda|Sibanda Sipho
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/15654.png)
Postharvest
Mechanisation
Precision agriculture
Renewable energy
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,264,956
![South Africa](/flags/za.png)
9,046
![](https://cdn.adscientificindex.com/logos/25400.gif)
5
Warren James Farmer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/25400.gif)
Power system frequency stability
Virtual inertia
Renewable energy integration
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,276,021
![South Africa](/flags/za.png)
9,130
![](https://cdn.adscientificindex.com/logos/9040.png)
161
Mabel U. Olanipekun
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/9040.png)
Solar Energy
Renewable Energy
Optimization
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,283,036
![South Africa](/flags/za.png)
9,193
![](https://cdn.adscientificindex.com/logos/5494.png)
31
Chiemela Onunka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
![](https://cdn.adscientificindex.com/logos/5494.png)
Autonomous Systems
Robotics
Mechatronics
Renewable Energy
Energy Management