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
Organic Maturation and Thermal Maturity
Hydrocarbon Source Rock Characterization including hydrocarbon generation
Coal beneficiation and Clean Coal Technology
Coal utilization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
531
302
0.569
* Total i10 IndexRankings
Ranking Based On Selection :2
Ion beam synthesis of materials
Radiation damage
Carbon nanostructures
Plasmonics
Materials for energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
460
193
0.420
* Total i10 IndexRankings
Ranking Based On Selection :3
Petroleum Engineering
Natural Gas Engineering
CCUS
Environmental Engineering
Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
155
149
0.961
* Total i10 IndexRankings
Ranking Based On Selection :4
Petroleum
Solar
Education Research
Production
Turbo Machine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
129
69
0.535
* Total i10 IndexRankings
Ranking Based On Selection :5
Flow through Fractured Reservoirs - EOR/EGS - CO2 Sequestration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
90
0.818
* Total i10 IndexRankings
Ranking Based On Selection :6
Material failure
ReaxFF
Molecular Dynamics
Natural fiber Composites
Bio-composites
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
97
1.000
* Total i10 IndexRankings
Ranking Based On Selection :7
Metamorphic Petrology
Geology
Economic Geology
Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
51
0.543
* Total i10 IndexRankings
Ranking Based On Selection :8
stable isotope geochemistry
organic geochemistry
igneous petrology
trace elemental geochemistry
geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
88
34
0.386
* Total i10 IndexRankings
Ranking Based On Selection :9
Welding
Metallurgy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
76
0.950
* Total i10 IndexRankings
Ranking Based On Selection :10
Petrophysics
Rock Physics
Geomagnetism
Planetary Magnetism
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
48
0.632
* Total i10 IndexRankings
Ranking Based On Selection :11
Membrane Separations
Environmental Pollution
Process Design & Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
32
0.438
* Total i10 IndexRankings
Ranking Based On Selection :12
Geoinformatics Technology and Applications
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
30
0.469
* Total i10 IndexRankings
Ranking Based On Selection :13
Metamorphic Petrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
42
0.667
* Total i10 IndexRankings
Ranking Based On Selection :14
Drilling Fluids
Biomass & Bioenergy
CO2 Sequestration
Membrane Separation
Multi-objective Optimization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
53
0.855
* Total i10 IndexRankings
Ranking Based On Selection :15
Chemical & Thermal EOR
Reservoir Characterization & Modeling
Nanotechnology in EOR
Green Solvent
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
57
0.950
* Total i10 IndexRankings
Ranking Based On Selection :16
EOR
CO2 Storage/Utilization
Cementation
Nanofluid
Thermal Storage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
55
1.000
* Total i10 IndexRankings
Ranking Based On Selection :17
Food Science and Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
54
1.000
* Total i10 IndexRankings
Ranking Based On Selection :18
Nanotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
32
0.653
* Total i10 IndexRankings
Ranking Based On Selection :19
Chemical and environmental systems modeling and design
process safety
environmental risk assessment
air pollution modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
* Total i10 IndexRankings
Ranking Based On Selection :20
Precambrian Geology
Geochronology
Isotope Geochemistry
Petrology
Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
31
0.660
* Total i10 IndexRankings
Ranking Based On Selection :21
Heat transfer
solar energy
IC Engines.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
44
0.978
* Total i10 IndexRankings
Ranking Based On Selection :22
Computational Material Science
Density functional Theory
Electronic Structure Calculations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
40
0.889
* Total i10 IndexRankings
Ranking Based On Selection :23
Data Mining
Big Data
Machine Learning
and Deep learning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
36
0.818
* Total i10 IndexRankings
Ranking Based On Selection :24
Polymers and Materials for Energy & Sustainability
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
28
0.700
* Total i10 IndexRankings
Ranking Based On Selection :25
Nanoparticles
Materials Chemistry
Solar cell
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
31
0.795
Alok K Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
531
302
0.569
Organic Maturation and Thermal Maturity
Hydrocarbon Source Rock Characterization including hydrocarbon generation
Coal beneficiation and Clean Coal Technology
Coal utilization
Devesh Kumar Avasthi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
460
193
0.420
Ion beam synthesis of materials
Radiation damage
Carbon nanostructures
Plasmonics
Materials for energy
Jitendra Sangwai
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
155
149
0.961
Petroleum Engineering
Natural Gas Engineering
CCUS
Environmental Engineering
Nanotechnology
Ajit Kumar N Shukla
RK University
Rajkot, India
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
129
69
0.535
Petroleum
Solar
Education Research
Production
Turbo Machine
Suresh Kumar Govindarajan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
90
0.818
Flow through Fractured Reservoirs - EOR/EGS - CO2 Sequestration
Akarsh Verma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
97
1.000
Material failure
ReaxFF
Molecular Dynamics
Natural fiber Composites
Bio-composites
Somnath Dasgupta
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
51
0.543
Metamorphic Petrology
Geology
Economic Geology
Geochemistry
Debayan Pal
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
88
34
0.386
stable isotope geochemistry
organic geochemistry
igneous petrology
trace elemental geochemistry
geology
Vishvesh J Badheka Iwe
Pandit Deendayal Petroleum University
Gandhinagar, India
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
76
0.950
Kumar Hemant Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
48
0.632
Petrophysics
Rock Physics
Geomagnetism
Planetary Magnetism
Prashant K Bhattacharya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
32
0.438
Membrane Separations
Environmental Pollution
Process Design & Development
SK Saha
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
30
0.469
Geoinformatics Technology and Applications
Pulak Sengupta
Jadavpur University
Kolkata, India
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
42
0.667
Metamorphic Petrology
Chandan Guria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
53
0.855
Drilling Fluids
Biomass & Bioenergy
CO2 Sequestration
Membrane Separation
Multi-objective Optimization
Achinta Bera
Pandit Deendayal Petroleum University
Gandhinagar, India
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
57
0.950
Chemical & Thermal EOR
Reservoir Characterization & Modeling
Nanotechnology in EOR
Green Solvent
Tushar Sharma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
55
1.000
EOR
CO2 Storage/Utilization
Cementation
Nanofluid
Thermal Storage
Ravinder Kaushik
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
54
1.000
Food Science and Technology
Amit Kumar Chawla
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
32
0.653
Syed Mohammad Tauseef
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
Chemical and environmental systems modeling and design
process safety
environmental risk assessment
air pollution modeling
Yj Bhaskar Rao
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
31
0.660
Precambrian Geology
Geochronology
Isotope Geochemistry
Petrology
Geochemistry
Rajesh Maithani
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
44
0.978
Heat transfer
solar energy
IC Engines.
Abhishek Kumar Mishra
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
40
0.889
Computational Material Science
Density functional Theory
Electronic Structure Calculations
Vijendra Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
36
0.818
Data Mining
Big Data
Machine Learning
and Deep learning
Umaprasana Ojha
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
28
0.700
Polymers and Materials for Energy & Sustainability
Manjeet Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
31
0.795
Nanoparticles
Materials Chemistry
Solar cell