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. Additionally, click to view the special rankings based on Productivity Rankings: 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
Resource Assessment
Appalachian Basin
Gas Hydrates
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
132
89
0.674
* Total i10 IndexRankings
Ranking Based On Selection :2
dispersion strengthened aluminum
heat resistant alloys
creep
wear
tribology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
80
0.650
* Total i10 IndexRankings
Ranking Based On Selection :3
energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
59
0.596
* Total i10 IndexRankings
Ranking Based On Selection :4
Materials Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
81
0.844
* Total i10 IndexRankings
Ranking Based On Selection :5
Chemical Physics
Environmental Science
Battery & Sensor
Quantum Information Science
multiscale modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
75
0.824
* Total i10 IndexRankings
Ranking Based On Selection :6
Optimization
Advanced Energy Systems
Metabolic Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
59
0.648
* Total i10 IndexRankings
Ranking Based On Selection :7
Surface Analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
59
0.720
* Total i10 IndexRankings
Ranking Based On Selection :8
microwave chemistry
hydrogen production
mixed metal oxides
pyrochlores
fuel reforming
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
58
0.806
* Total i10 IndexRankings
Ranking Based On Selection :9
Quantum computing
Multiphase flow
computational fluid dynamics
fluidization
energy processes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
44
0.611
* Total i10 IndexRankings
Ranking Based On Selection :10
Pretreatment
Metallurgy
Materials Science
High Temperature Oxidation
Corrosion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
34
0.493
* Total i10 IndexRankings
Ranking Based On Selection :11
Energy Geoscience
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
58
0.853
* Total i10 IndexRankings
Ranking Based On Selection :12
subsurface storage
surface chemistry
physical chemistry
statistics
geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
60
0.923
* Total i10 IndexRankings
Ranking Based On Selection :13
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
56
0.862
* Total i10 IndexRankings
Ranking Based On Selection :14
energy
engineering
chemistry
FUEL SCIENCE
TURBINES
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
33
0.516
* Total i10 IndexRankings
Ranking Based On Selection :15
materials science
metallurgy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
28
0.438
* Total i10 IndexRankings
Ranking Based On Selection :16
gas turbine
fuel cell
hybrid system
cyber physical
advanced control
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
33
0.550
* Total i10 IndexRankings
Ranking Based On Selection :17
Process Design
Optimization
Process Integration
Carbon Capture
Energy Systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
47
0.839
* Total i10 IndexRankings
Ranking Based On Selection :18
energy
materials science
nanotechnology
catalysis
surface science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
42
0.764
* Total i10 IndexRankings
Ranking Based On Selection :19
Energy
membrane
catalyst
carbon dioxide
natural gas
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
39
0.709
* Total i10 IndexRankings
Ranking Based On Selection :20
electron microscopy
electron channeling
materials science
fuel cells
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
30
0.545
* Total i10 IndexRankings
Ranking Based On Selection :21
Hybrid power system
transport phenomena
heat & mass transfer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
53
0.981
* Total i10 IndexRankings
Ranking Based On Selection :22
Computational Fluid Dynamics
Multiphase Flow
Gasification
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
44
0.815
* Total i10 IndexRankings
Ranking Based On Selection :23
Materials for Gas and Liquid Separations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
41
0.759
* Total i10 IndexRankings
Ranking Based On Selection :24
Microscopy
Spectroscopy
Diffraction
Material Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
40
0.741
* Total i10 IndexRankings
Ranking Based On Selection :25
Materials Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
37
0.698
Ray Boswell
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
132
89
0.674
Jeffrey A Hawk
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
80
0.650
dispersion strengthened aluminum
heat resistant alloys
creep
wear
tribology
Yee Soong
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
59
0.596
Michael Gao
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
81
0.844
Yuhua Duan
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
75
0.824
Chemical Physics
Environmental Science
Battery & Sensor
Quantum Information Science
multiscale modeling
Anthony P Burgard
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
59
0.648
John Baltrus
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
59
0.720
Dushyant Shekhawat
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
58
0.806
microwave chemistry
hydrogen production
mixed metal oxides
pyrochlores
fuel reforming
Madhava Syamlal
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
44
0.611
Quantum computing
Multiphase flow
computational fluid dynamics
fluidization
energy processes
Gordon Holcomb
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
34
0.493
Pretreatment
Metallurgy
Materials Science
High Temperature Oxidation
Corrosion
Yongkoo Seol
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
58
0.853
Angela Goodman
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
60
0.923
subsurface storage
surface chemistry
physical chemistry
statistics
geochemistry
Dustin Crandall
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
56
0.862
Larry Shadle
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
33
0.516
David Alman
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
28
0.438
materials science
metallurgy
David Tucker
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
33
0.550
gas turbine
fuel cell
hybrid system
cyber physical
advanced control
David C Miller
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
47
0.839
Process Design
Optimization
Process Integration
Carbon Capture
Energy Systems
Christopher Matranga
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
42
0.764
energy
materials science
nanotechnology
catalysis
surface science
Bryan D Morreale
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
39
0.709
Energy
membrane
catalyst
carbon dioxide
natural gas
Yoosuf N Picard
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
30
0.545
electron microscopy
electron channeling
materials science
fuel cells
Biao Zhang
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
53
0.981
Mehrdad Shahnam
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
44
0.815
Computational Fluid Dynamics
Multiphase Flow
Gasification
Mcmahan L Gray
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
41
0.759
J Poston, James Poston, James A Poston, James A Poston Jr
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
40
0.741
Microscopy
Spectroscopy
Diffraction
Material Science
Omer N Dogan
National Energy Technology Laboratory
Pittsburgh, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
37
0.698