- Engineering, general 149
- Metallic Materials 121
- Environment, general 13
- Chemistry/Food Science, general 12
- Earth Sciences, general 12
- Physics, general 10
- Sustainable Development 4
- Innovation/Technology Management 3
- Applied and Technical Physics 2
- Materials Science, general 2
- Analytical Chemistry 1
- Electrical Engineering 1
- Electronics and Microelectronics, Instrumentation 1
- Environmental Engineering/Biotechnology 1
- Industrial Pollution Prevention 1
- Optical and Electronic Materials 1
- Pharmacy 1
- Renewable and Green Energy 1
- Science, Humanities and Social Sciences, multidisciplinary 1
- Waste Management/Waste Technology 1