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.
* Total i10 IndexRankings
Ranking Based On Selection :1
Hydropower
Renewable Energy
Pumped Storage Hydro Technology Innovation
Hydropower Cost and Economics
Transient Analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
632
313
0.495
* Total i10 IndexRankings
Ranking Based On Selection :2
Biomass
bioenergy
resource economics
environmental economics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
33
0.786
* Total i10 IndexRankings
Ranking Based On Selection :3
Energy and Environmental Economics
Fuels Supply and Demand
Biofuels
Climate Change
Oil markets
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
19
0.528
* Total i10 IndexRankings
Ranking Based On Selection :4
Energy and Environmental Economics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
13
0.591
Qin Fen (Katherine) Zhang
Oak Ridge National Laboratory
Oak Ridge, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
632
313
0.495
Hydropower
Renewable Energy
Pumped Storage Hydro Technology Innovation
Hydropower Cost and Economics
Transient Analysis
Matthew Langholtz
Oak Ridge National Laboratory
Oak Ridge, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
33
0.786
Biomass
bioenergy
resource economics
environmental economics
Gbadebo Oladosu
Oak Ridge National Laboratory
Oak Ridge, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
19
0.528
Energy and Environmental Economics
Fuels Supply and Demand
Biofuels
Climate Change
Oil markets
Rocío Uría-Martínez
Oak Ridge National Laboratory
Oak Ridge, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
13
0.591
Energy and Environmental Economics