| Category | Number of Articles |
|---|
| Nano-, Micro-, and Meso-Technology | 82 |
| Materials Behavior | 74 |
| Engineering Mechanics | 59 |
| Fluid Dynamics | 58 |
| Manufacturing Systems | 54 |
| Control Systems | 42 |
| Operations Research | 41 |
| Materials Processing | 40 |
| Energy Systems and Thermodynamics | 40 |
| Combustion and Propulsion | 37 |
| Heat Transfer | 30 |
| Computational Science and Engineering | 19 |
| Dynamic Systems | 18 |
| Automotive Systems | 17 |
| Design Methodology and Tribology | 17 |
| Bioengineering | 16 |
| Human Factors and Ergonomics | 8 |
| Nano-, Micro-, and Meso-technology | 7 |
| Production Management | 4 |
| Human Factors | 2 |
