| Category | Number of Journal Articles |
|---|
| Experimental Condensed Matter Physics | 259 |
| Theoretical Condensed Matter Physics | 245 |
| Electromagnetics | 205 |
| Experimental Particle Physics | 179 |
| Environmental Engineering and Science in Civil Engineering | 159 |
| Theoretical Astrophysics | 114 |
| Soft Materials | 109 |
| Mechanics of Fluids | 103 |
| Semiconductors | 101 |
| Biomolecular and Biological Physics | 97 |
| Thin-Film Electronics | 94 |
| Structural Engineering and Structural Dynamics | 92 |
| Nano-, Micro-, and Meso-Technology | 91 |
| Nanoscience and Technology | 88 |
| Bioacoustics | 83 |
| Decision and Control | 80 |
| Biochemical and Biomedical Engineering | 77 |
| Materials Behavior | 75 |
| Experimental Nuclear Physics | 66 |
| Control Systems | 65 |
| Semiconductor Physics | 62 |
| Engineering Mechanics | 59 |
| Advanced Processing and Circuits | 59 |
| Communications | 58 |
| Fluid Dynamics | 58 |
| Environmental Hydrology and Hydraulic Engineering | 57 |
| Theoretical Biological Physics | 57 |
| Manufacturing Systems | 54 |
| Experimental High-Energy Physics | 51 |
| Processing | 50 |
| Optical and Discharge Physics | 46 |
| Signal and Image Processing | 46 |
| Materials and Structures | 45 |
| Transportation Facilities and Systems | 44 |
| Experimental Biological Physics | 44 |
| Magnetic Resonance | 44 |
| Atomic, Molecular, and Optical Physics | 42 |
| Power and Energy Systems | 42 |
| Operations Research | 42 |
| Remote Sensing | 42 |
| Networking | 42 |
| Circuits | 42 |
| Behavior of Engineering Materials | 41 |
| Systems and Control | 41 |
| Energy Systems and Thermodynamics | 40 |
| Materials Processing | 40 |
| Combustion and Propulsion | 37 |
| Digital Signal and Image Processing | 36 |
| Reliable and High-Performance Computing | 35 |
| Theoretical Particle Physics | 35 |
| Fluid Flow, Heat, and Mass Transfer Fundamentals | 35 |
| Digital Signal and Imaging Processing | 33 |
| Structural Engineering and Structural Mechanics | 33 |
| Optical Imaging | 32 |
| Databases and Information Systems | 31 |
| Structural Engineering and Design | 30 |
| Heat Transfer | 30 |
| Optical Physics and Engineering | 29 |
| Food and Bioprocess Engineering | 28 |
| Bioengineering | 28 |
| Computer Architecture and Compilers | 28 |
| Bioenvironmental Engineering | 27 |
| Algorithms and Theory | 26 |
| Theoretical Nuclear Physics | 26 |
| Semiconductor Lasers | 25 |
| Structural Dynamics | 25 |
| Materials | 25 |
| Nuclear Materials, Materials Science and Performance, Radiation Effects, and Waste Management | 22 |
| Off-Road Equipment Engineering | 22 |
| Thin Films and Charged Particles | 21 |
| Geotechnical Engineering | 21 |
| Dynamics, Vibrations, and Waves | 21 |
| High Frequency Devices | 21 |
| Genetic and Evolutionary Computation | 21 |
| Advanced Automation | 21 |
| Optoelectronics | 20 |
| Computational Science and Engineering | 20 |
| Mechanical Behavior of Solids | 19 |
| Earthquake Engineering | 19 |
| Other Physics Research | 19 |
| Combustion | 18 |
| Construction Materials | 18 |
| Dynamic Systems | 18 |
| Construction Management | 18 |
| Scientific Computing | 18 |
| Ceramic Synthesis and Processing | 18 |
| Automotive Systems | 17 |
| Design Methodology and Tribology | 17 |
| Theoretical High-Energy Physics | 16 |
| Tunneling Microscopy | 16 |
| Phase Transformation and Microcharacterization | 15 |
| Dynamical Systems | 15 |
| Optimization and Process Systems Engineering | 14 |
| Biomaterials | 14 |
| Artificial Intelligence: Machine Learning, Vision, and Robotics | 13 |
| Graphics and Visualization | 13 |
| Aerodynamics | 13 |
| Mechanics of Solids | 13 |
| Materials Chemistry | 12 |
| Programming Languages, Formal Systems, and Software Engineering | 12 |
| Real-Time and Embedded Systems | 12 |
| Site-Specific Agriculture | 12 |
| Nuclear Fusion | 12 |
| Transportation Systems | 12 |
| Astrodynamics | 11 |
| Applied Plasma Physics | 11 |
| Polymers | 11 |
| Supercomputing Research and Development | 11 |
| Water Quality | 11 |
| General Engineering: Bioengineering | 11 |
| Computational Mechanics | 11 |
| Remote Sensing and Wave Propagation | 10 |
| Photonic Materials | 10 |
| Parallel Processing | 10 |
| Human Factors and Ergonomics | 10 |
| Structural Mechanics and Dynamics | 10 |
| Computer Simulation of Materials | 10 |
| Phase Transformation | 10 |
| Microchemical, Microfluidic and Nanochemical Systems | 9 |
| Experimental Atomic, Molecular, Optical, and Quantum Physics | 9 |
| Microelectromechanical Systems (MEMS) | 9 |
| Solid State Devices | 9 |
| Computational Fluid Dynamics | 8 |
| Bioinstrumentation | 8 |
| Electromagnetic Communication and Electronics Packaging | 8 |
| Operating Systems and Security | 8 |
| Behavior of Materials | 7 |
| Design Theory and Methodology | 7 |
| Complex and Nonlinear Systems | 7 |
| Grain Qualities and Properties | 7 |
| Microstructure Characterization | 7 |
| Interfaces | 7 |
| Structural Ceramics | 7 |
| Nano-, Micro-, and Meso-technology | 7 |
| Multiscale Systems | 6 |
| Propulsion and Combustion | 6 |
| Integrated Mechanical and Structural Design | 6 |
| Surface Studies | 6 |
| Surfaces and Interfaces | 6 |
| Nondestructive Evaluation and Testing | 6 |
| Biological and Biomolecular Physics | 6 |
| Tribology | 6 |
| Solid-State Devices | 6 |
| Aeroelasticity | 6 |
| Mechatronics | 5 |
| Lasers | 5 |
| Product Development | 5 |
| Agricultural Infotronic Systems | 5 |
| Microchemical, Microfluidic, and Nanochemical Systems | 5 |
| Analog and Digital Circuits | 5 |
| Cellular Bioengineering | 5 |
| Applied Mathematics | 5 |
| Structural Mechanics | 5 |
| Electrical Ceramics | 5 |
| Aeronomy | 5 |
| Distributed Systems | 4 |
| Ceramic and Glassy Solids | 4 |
| Water Purification | 4 |
| Metals Processing | 4 |
| Propulsion | 4 |
| Compilers | 4 |
| Production Management | 4 |
| Complex Fluids | 4 |
| Thermal Hydraulics and Reactor Safety | 3 |
| Microelectromechanical Systems | 3 |
| Health Physics, Radiological, and Medical Applications | 3 |
| Thermal Properties | 3 |
| Low-Energy Nuclear Reactions | 3 |
| Engineering Education | 3 |
| Arms Control, Disarmament, and International Security | 3 |
| Thermal Behavior of Materials | 3 |
| Numerical and Scientific Computing | 3 |
| Artificial Intelligence | 3 |
| Cellular Engineering | 3 |
| Simulation and Modeling | 3 |
| Computational Neuroscience | 3 |
| Grain Quality and Properties | 3 |
| Computer Engineering | 3 |
| Engineering Mechanics and Materials | 3 |
| Robotics | 3 |
| Two-phase Flow | 2 |
| Railroad Engineering | 2 |
| Applied Computation Theory | 2 |
| Geotech/Information Technology | 2 |
| System Safety, Reliability and Design | 2 |
| Electron Microscopy | 2 |
| High-Frequency Devices | 2 |
| Communications Networks | 2 |
| Parallel Computing | 2 |
| Bioelectric Phenomena | 2 |
| Human Factors | 2 |
| Low-energy Nuclear Reactions | 2 |
| Composites | 2 |
