- Optical and Electronic Materials 7
- Condensed Matter Physics 4
- Manufacturing, Machines, Tools, Processes 4
- Mechanical Engineering 4
- Nanotechnology 4
- Characterization and Evaluation of Materials 3
- Electrical Engineering 3
- Mathematical and Computational Engineering 3
- Surfaces and Interfaces, Thin Films 3
- Theoretical, Mathematical and Computational Physics 3
- Big Data 2
- Biotechnology 2
- Computational Intelligence 2
- Control and Systems Theory 2
- Data Mining and Knowledge Discovery 2
- Environmental Chemistry 2
- Inorganic Chemistry 2
- Materials Science, general 2
- Pollution, general 2
- Polymer Sciences 2