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: 1
Spark Plasma Sintering
Additive Manufacturing
Nanoindentation
Tribocorrosion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
191
163
0.853
* Total i10 IndexRankings
Ranking Based On Selection: 2
Chemical Engineering
Environmental Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
39
0.813
* Total i10 IndexRankings
Ranking Based On Selection: 3
Coal and Biomass gasification
Oxy-combustion
Waste to Energy
Power to Gas
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
40
0.909
* Total i10 IndexRankings
Ranking Based On Selection: 4
Biochemical Engineering
Waste Management
Bioprospection
Drug Biotransformation
Biocatalysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
29
0.829
* Total i10 IndexRankings
Ranking Based On Selection: 5
Natural fiber composites
Nano cellulose
Hybrid composites
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
29
0.879
* Total i10 IndexRankings
Ranking Based On Selection: 6
Chemical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
22
0.733
* Total i10 IndexRankings
Ranking Based On Selection: 7
Chemical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
* Total i10 IndexRankings
Ranking Based On Selection: 8
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 IndexRankings
Ranking Based On Selection: 9
Chemical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
2
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 10
Chemical Engineering
process design
biorefinery technology
green construction materials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
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* Total i10 IndexRankings
Ranking Based On Selection: 11
Chemical engineering
Biomass conversion
Renewable energy
Material Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 12
Renewable energy
Climate change
Metallurgy
Chemical Engineering
Finance and Policy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 13
Biomass
Distillation design
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Peter Olubambi
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
191
163
0.853
Spark Plasma Sintering
Additive Manufacturing
Nanoindentation
Tribocorrosion
Freeman Ntuli
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
39
0.813
Chemical Engineering
Environmental Engineering
Bilainu Oboirien
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
40
0.909
Coal and Biomass gasification
Oxy-combustion
Waste to Energy
Power to Gas
Lukhanyo Mekuto
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
29
0.829
Biochemical Engineering
Waste Management
Bioprospection
Drug Biotransformation
Biocatalysis
C. Uma Maheswari
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
29
0.879
Natural fiber composites
Nano cellulose
Hybrid composites
Mohamed Belaid
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
22
0.733
Trust Nhubu
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
Nhlanhla Nkosi
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Chemical engineering
waste to energy
modelling and simulations
sustainable development
Major Mabuza
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
2
0.500
Rishen Roopchund
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Chemical Engineering
process design
biorefinery technology
green construction materials
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Victor Idankpo Ameh|Victor I. Ameh, Ameh, Victor Idankpo, Ameh, VI
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Chemical engineering
Biomass conversion
Renewable energy
Material Development
Malesela Molala
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Renewable energy
Climate change
Metallurgy
Chemical Engineering
Finance and Policy
Naadhira Seedat
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Biomass
Distillation design