- Characterization and Evaluation of Materials 10
- Tribology, Corrosion and Coatings 9
- Analytical Chemistry 8
- Manufacturing, Machines, Tools, Processes 8
- Surfaces and Interfaces, Thin Films 8
- Big Data 2
- Communications Engineering, Networks 2
- Dermatology 2
- Environmental Health 2
- Medicine/Public Health, general 2
- Signal, Image and Speech Processing 2
- Surgical Oncology 2
- Acupuncture 1
- Artificial Intelligence 1
- Atmospheric Protection/Air Quality Control/Air Pollution 1
- Biostatistics 1
- Cell Biology 1
- Chiropractic Medicine 1
- Classical Mechanics 1
- Complementary & Alternative Medicine 1