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 02, 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 (870.053) 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: 26
Materials
Nanostructures
Energy Storage
Metrics
H-Index
i10 Index
Citation Counts
116
347
48,010
* Total H IndexRankings
Ranking Based On Selection: 27
Biomaterials
Nanotechnology
Surface Science and Engineering
Metrics
H-Index
i10 Index
Citation Counts
116
582
48,833
* Total H IndexRankings
Ranking Based On Selection: 28
Hybrid composites
Biocomposite
Natural fibre composites
Polymer composites
Composite Materials
Metrics
H-Index
i10 Index
Citation Counts
113
522
52,775
* Total H IndexRankings
Ranking Based On Selection: 29
Materials Science and Engineering
Metrics
H-Index
i10 Index
Citation Counts
113
500
47,651
* Total H IndexRankings
Ranking Based On Selection: 30
Energy storage
Batteries
E-waste/Batteries recycling
Sustainability
Circular economy
Metrics
H-Index
i10 Index
Citation Counts
113
385
41,870
* Total H IndexRankings
Ranking Based On Selection: 31
Reaction Engineering & Catalysis
Air Pollution and Waste Water Control Engineering
Fuel Technology
Nanoscience & Nanotechnol
Metrics
H-Index
i10 Index
Citation Counts
112
525
48,334
* Total H IndexRankings
Ranking Based On Selection: 32
Nanomaterials for energy
electrochemical and electronic devices
soft electronics
stretchable devices
human machine interface
Metrics
H-Index
i10 Index
Citation Counts
111
357
41,995
* Total H IndexRankings
Ranking Based On Selection: 33
Sensor
Nanophotonics
MEMS
Energy Harvesting
AIoT
Metrics
H-Index
i10 Index
Citation Counts
107
481
39,296
* Total H IndexRankings
Ranking Based On Selection: 34
Renewable Energy
Power Electronics
Drives
Electrical Engineering
Metrics
H-Index
i10 Index
Citation Counts
107
472
44,935
* Total H IndexRankings
Ranking Based On Selection: 35
Semiconductor optics
light-matter interactions
optical spectroscopy
laser cooling
Metrics
H-Index
i10 Index
Citation Counts
107
286
39,046
* Total H IndexRankings
Ranking Based On Selection: 36
Areas of interest: Fluid Mechanics
Heat Transfer
Thermodynamics
Two-Phase Flow
Thermal System Design
Metrics
H-Index
i10 Index
Citation Counts
107
509
46,479
* Total H IndexRankings
Ranking Based On Selection: 37
Additive manufacturing
Multi-functional 3D structures &applications
Nanomagnetics
Metrics
H-Index
i10 Index
Citation Counts
106
491
37,940
* Total H IndexRankings
Ranking Based On Selection: 38
Intelligent Control Systems
Adaptive Systems
Intelligent Mechatronics
Precision Control Systems
Metrics
H-Index
i10 Index
Citation Counts
106
560
42,649
* Total H IndexRankings
Ranking Based On Selection: 39
digital health
AI
health systems
population health
Metrics
H-Index
i10 Index
Citation Counts
105
355
94,088
* Total H IndexRankings
Ranking Based On Selection: 40
Electrocatalysis/Photoelectrochemistry/In-situ/Operando
Metrics
H-Index
i10 Index
Citation Counts
103
270
45,837
* Total H IndexRankings
Ranking Based On Selection: 41
nanoclusters
metal nanomaterials
cluster chemistry
nanomedicine
Metrics
H-Index
i10 Index
Citation Counts
101
228
35,365
* Total H IndexRankings
Ranking Based On Selection: 42
AI4SE
Software Analytics
SE4AI
Software Maintenance
Software Engineering
Metrics
H-Index
i10 Index
Citation Counts
100
483
37,694
* Total H IndexRankings
Ranking Based On Selection: 43
Environmental microbiology and biotechnology
MBR
Biological wastewater treatment
Metrics
H-Index
i10 Index
Citation Counts
100
320
38,519
* Total H IndexRankings
Ranking Based On Selection: 44
Functional Materials
Li-ion battery
Supercapacitors
All-solid-state battery
Li/Na ion conductors
Metrics
H-Index
i10 Index
Citation Counts
100
464
36,570
* Total H IndexRankings
Ranking Based On Selection: 45
Optimization
Optimal control
Time Delay System
Multi-agent System
Signal Processing
Metrics
H-Index
i10 Index
Citation Counts
99
704
40,049
* Total H IndexRankings
Ranking Based On Selection: 46
Semiconductor
MEMS
Sensor
Actuator
Metrics
H-Index
i10 Index
Citation Counts
98
906
47,427
* Total H IndexRankings
Ranking Based On Selection: 47
Information Systems
Industrial Management
Quality Management
Mobile Technology
Technology Adoption
Metrics
H-Index
i10 Index
Citation Counts
98
193
31,979
* Total H IndexRankings
Ranking Based On Selection: 48
cement
concrete
geopolymer
composite materials
civil engineering
Metrics
H-Index
i10 Index
Citation Counts
97
348
36,236
* Total H IndexRankings
Ranking Based On Selection: 49
Surface Engineering
Photocatalyst
Electronic Packaging
Mechanical Behavior of Materials
Metrics
H-Index
i10 Index
Citation Counts
97
421
36,044
* Total H IndexRankings
Ranking Based On Selection: 50
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
96
336
27,293
Jim Yang Lee
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
116
347
48,010
Materials
Nanostructures
Energy Storage
Koon Gee Neoh
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
116
582
48,833
Biomaterials
Nanotechnology
Surface Science and Engineering
Mohammad Jawaid
Universiti Putra Malaysia
Seri Kembangan, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
113
522
52,775
Hybrid composites
Biocomposite
Natural fibre composites
Polymer composites
Composite Materials
John Wang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
113
500
47,651
Materials Science and Engineering
Madhavi Srinivasan
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
113
385
41,870
Energy storage
Batteries
E-waste/Batteries recycling
Sustainability
Circular economy
Abdul Rahman Mohamed
Universiti Sains Malaysia
Penang, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
112
525
48,334
Reaction Engineering & Catalysis
Air Pollution and Waste Water Control Engineering
Fuel Technology
Nanoscience & Nanotechnol
Pooi See Lee
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
111
357
41,995
Nanomaterials for energy
electrochemical and electronic devices
soft electronics
stretchable devices
human machine interface
Chengkuo Lee
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
107
481
39,296
Sensor
Nanophotonics
MEMS
Energy Harvesting
AIoT
Nasrudin Abd Rahim
University of Malaya
Kuala Lumpur, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
107
472
44,935
Renewable Energy
Power Electronics
Drives
Electrical Engineering
Qihua Xiong
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
107
286
39,046
Semiconductor optics
light-matter interactions
optical spectroscopy
laser cooling
Somchai Wongwises
Metrics
H-Index
i10-Index
Citation Counts
107
509
46,479
Areas of interest: Fluid Mechanics
Heat Transfer
Thermodynamics
Two-Phase Flow
Thermal System Design
Jun Ding
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
106
491
37,940
Additive manufacturing
Multi-functional 3D structures &applications
Nanomagnetics
TH Lee
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
106
560
42,649
Intelligent Control Systems
Adaptive Systems
Intelligent Mechatronics
Precision Control Systems
Josip Car
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
105
355
94,088
digital health
AI
health systems
population health
Bin Liu
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
103
270
45,837
Electrocatalysis/Photoelectrochemistry/In-situ/Operando
Jianping Xie
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
101
228
35,365
nanoclusters
metal nanomaterials
cluster chemistry
nanomedicine
David Lo
Singapore Management University
Singapore, Singapore
Metrics
H-Index
i10-Index
Citation Counts
100
483
37,694
AI4SE
Software Analytics
SE4AI
Software Maintenance
Software Engineering
Yu Liu
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
100
320
38,519
Environmental microbiology and biotechnology
MBR
Biological wastewater treatment
Li Lu
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
100
464
36,570
Functional Materials
Li-ion battery
Supercapacitors
All-solid-state battery
Li/Na ion conductors
Shuai Liu
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
99
704
40,049
Optimization
Optimal control
Time Delay System
Multi-agent System
Signal Processing
Tao Wang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
98
906
47,427
Semiconductor
MEMS
Sensor
Actuator
Keng Boon Ooi
UCSI University
Kuala Lumpur, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
98
193
31,979
Information Systems
Industrial Management
Quality Management
Mobile Technology
Technology Adoption
Prinya Chindaprasirt
Khon Kaen University
Khon Kaen, Thailand
Metrics
H-Index
i10-Index
Citation Counts
97
348
36,236
cement
concrete
geopolymer
composite materials
civil engineering
Zhong Chen 陳忠|Chen Zhong, Z. Chen, Chen, Z.
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
97
421
36,044
Surface Engineering
Photocatalyst
Electronic Packaging
Mechanical Behavior of Materials
Hui Ying Yang
Metrics
H-Index
i10-Index
Citation Counts
96
336
27,293