University, Subject, Country, Region, World
Japan 153 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 04, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.057) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 76
Astrophysics
Metrics
H-Index
i10 Index
Citation Counts
19
25
2,077
* Total H IndexRankings
Ranking Based On Selection: 77
MEMS
Micro Actuator
Soft Actuator
Bio Mimetic
Powder Metallurgy
Metrics
H-Index
i10 Index
Citation Counts
19
40
1,243
* Total H IndexRankings
Ranking Based On Selection: 78
Astronomy
gas giants
ionospheres
thermospheres
magnetospheres
Metrics
H-Index
i10 Index
Citation Counts
19
27
891
* Total H IndexRankings
Ranking Based On Selection: 79
Aerospace Engineering
Metrics
H-Index
i10 Index
Citation Counts
19
45
1,250
* Total H IndexRankings
Ranking Based On Selection: 80
Plasma
Spectroscopy
Propulsion
Metrics
H-Index
i10 Index
Citation Counts
19
31
1,168
* Total H IndexRankings
Ranking Based On Selection: 81
Space Structures
Structural Dynamics
Aerospace Engineering
Membrane Structures
Metrics
H-Index
i10 Index
Citation Counts
18
44
1,393
* Total H IndexRankings
Ranking Based On Selection: 82
Aerospace
Metrics
H-Index
i10 Index
Citation Counts
18
41
1,170
* Total H IndexRankings
Ranking Based On Selection: 83
RFIC
CMOS mmW Wireless Communication
Metrics
H-Index
i10 Index
Citation Counts
17
18
1,539
* Total H IndexRankings
Ranking Based On Selection: 84
Astrophysics
Optical and NIR astronomy
X-ray astronomy
Metrics
H-Index
i10 Index
Citation Counts
17
21
5,179
* Total H IndexRankings
Ranking Based On Selection: 85
Astronomy
Galaxy Evolution
Metrics
H-Index
i10 Index
Citation Counts
16
28
1,651
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* Total H IndexRankings
Ranking Based On Selection: 86
astronomy
Metrics
H-Index
i10 Index
Citation Counts
16
21
940
* Total H IndexRankings
Ranking Based On Selection: 87
Composite
Polymer
MD
SPH
Air Traffic Management
Metrics
H-Index
i10 Index
Citation Counts
16
17
597
* Total H IndexRankings
Ranking Based On Selection: 88
Astrobiology
Metrics
H-Index
i10 Index
Citation Counts
16
24
1,211
* Total H IndexRankings
Ranking Based On Selection: 89
Astronomy
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,205
* Total H IndexRankings
Ranking Based On Selection: 90
Aerospace Engineering
Metrics
H-Index
i10 Index
Citation Counts
16
27
763
* Total H IndexRankings
Ranking Based On Selection: 91
Astronomy
Metrics
H-Index
i10 Index
Citation Counts
15
15
803
* Total H IndexRankings
Ranking Based On Selection: 92
Hypersonic Propulsion & Aerodynamics
Laser-Based and Schlieren-Based Diagnostics
Theoretical Flow Modeling
Metrics
H-Index
i10 Index
Citation Counts
15
21
644
* Total H IndexRankings
Ranking Based On Selection: 93
Aerospace Engineering
Metrics
H-Index
i10 Index
Citation Counts
14
17
583
* Total H IndexRankings
Ranking Based On Selection: 94
Astronomy
Exoplanet
Atmosphere
High-resolution spectroscopy
Metrics
H-Index
i10 Index
Citation Counts
14
15
999
* Total H IndexRankings
Ranking Based On Selection: 95
Planetary Science
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,716
* Total H IndexRankings
Ranking Based On Selection: 96
Aerospace
Metrics
H-Index
i10 Index
Citation Counts
14
19
633
* Total H IndexRankings
Ranking Based On Selection: 97
Aerospace Engineering
Metrics
H-Index
i10 Index
Citation Counts
14
18
434
* Total H IndexRankings
Ranking Based On Selection: 98
Combustion
Metrics
H-Index
i10 Index
Citation Counts
14
20
854
* Total H IndexRankings
Ranking Based On Selection: 99
Aerospace Engineering
Fluid Dynamics
Aeroacoustics
Metrics
H-Index
i10 Index
Citation Counts
13
20
503
* Total H IndexRankings
Ranking Based On Selection: 100
radar remote sensing
precipitation
aviation weather
phased array
Metrics
H-Index
i10 Index
Citation Counts
13
22
735
Fujio Tsumori
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
19
40
1,243
MEMS
Micro Actuator
Soft Actuator
Bio Mimetic
Powder Metallurgy
James O'Donoghue
Metrics
H-Index
i10-Index
Citation Counts
19
27
891
Astronomy
gas giants
ionospheres
thermospheres
magnetospheres
Hirohisa Kojima
Tokyo Metropolitan University
Hachioji, Japan
Metrics
H-Index
i10-Index
Citation Counts
19
45
1,250
Aerospace Engineering
Plasma
Spectroscopy
Propulsion
Hiraku Sakamoto
Metrics
H-Index
i10-Index
Citation Counts
18
44
1,393
Space Structures
Structural Dynamics
Aerospace Engineering
Membrane Structures
Masahiro Kanazaki
Tokyo Metropolitan University
Hachioji, Japan
Metrics
H-Index
i10-Index
Citation Counts
18
41
1,170
Kumiko Morihana
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
17
21
5,179
Astrophysics
Optical and NIR astronomy
X-ray astronomy
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Hyunbae Park
Metrics
H-Index
i10-Index
Citation Counts
16
21
940
Yoshiaki Kawagoe
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
16
17
597
Composite
Polymer
MD
SPH
Air Traffic Management
Akizumi Ishida
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
16
24
1,211
Shun Ishii
Metrics
H-Index
i10-Index
Citation Counts
16
23
1,205
Aerospace Engineering
Takuji Yamashita
Metrics
H-Index
i10-Index
Citation Counts
15
15
803
Hidemi Takahashi
Metrics
H-Index
i10-Index
Citation Counts
15
21
644
Hypersonic Propulsion & Aerodynamics
Laser-Based and Schlieren-Based Diagnostics
Theoretical Flow Modeling
Aerospace Engineering
Stevanus Kristianto Nugroho
Metrics
H-Index
i10-Index
Citation Counts
14
15
999
Astronomy
Exoplanet
Atmosphere
High-resolution spectroscopy
ARAI Takehiko
Ashikaga University
Tochigi, Japan
Metrics
H-Index
i10-Index
Citation Counts
14
18
1,716
Yusuke Maru
Metrics
H-Index
i10-Index
Citation Counts
14
19
633
Aerospace Engineering
Aerospace Engineering
Fluid Dynamics
Aeroacoustics
Eiichi Yoshikawa
Metrics
H-Index
i10-Index
Citation Counts
13
22
735
radar remote sensing
precipitation
aviation weather
phased array