| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|
| 1 | Telecommunication | 1,077 | 25,205 | 2 | 9 |
| 2 | Wireless Communication Systems | 1,093 | 20,956 | 1 | 1 |
| 3 | Optics | 1,165 | 18,421 | 4 | 19 |
| 4 | internet | 512 | 13,564 | 1 | 1 |
| 5 | Internet of Things | 504 | 13,483 | 1 | 1 |
| 6 | computer networks | 626 | 12,803 | 1 | 1 |
| 7 | Physics | 836 | 11,433 | 53 | 1.9K |
| 8 | Signal Processing | 432 | 9,155 | 2 | 44 |
| 9 | Information Technology | 233 | 7,879 | 2 | 2 |
| 10 | China | 707 | 7,841 | 7 | 14 |
| 11 | Photonics | 422 | 7,815 | 4 | 33 |
| 12 | Statistical physics | 384 | 7,712 | 13 | 42 |
| 13 | Artificial Intelligence | 423 | 6,699 | 5 | 64 |
| 14 | Materials | 145 | 6,607 | 693 | 834 |
| 15 | Nanotechnology | 185 | 6,290 | 434 | 923 |
| 16 | Image Processing | 243 | 5,302 | 5 | 48 |
| 17 | Automation | 97 | 5,135 | 55 | 52 |
| 18 | Communication | 34 | 5,044 | 77 | 13 |
| 19 | Optical Communications | 340 | 4,972 | 1 | 2 |
| 20 | Systems Engineering | 169 | 4,784 | 8 | 12 |
| 21 | Fiber Optics | 306 | 4,362 | 1 | 4 |
| 22 | Information Theory | 230 | 4,233 | 5 | 40 |
| 23 | Nuclear Physics | 136 | 4,180 | 324 | 343 |
| 24 | Optical materials | 85 | 4,096 | 256 | 327 |
| 25 | Materials Science | 120 | 4,076 | 541 | 781 |
| 26 | Telecommunication Systems | 324 | 4,066 | 1 | 1 |
| 27 | lasers | 248 | 3,719 | 4 | 24 |
| 28 | Neural circuitry | 117 | 3,663 | 4 | 8 |
| 29 | Research | 326 | 3,553 | 112 | 2.2K |
| 30 | Quantum electronics | 226 | 3,256 | 4 | 37 |
| 31 | nanoscience | 71 | 2,919 | 437 | 842 |
| 32 | Electronics | 347 | 2,881 | 21 | 163 |
| 33 | Mobile Computing | 208 | 2,833 | 1 | 4 |
| 34 | Radio | 89 | 2,762 | 42 | 70 |
| 35 | Mathematics | 215 | 2,623 | 298 | 213 |
| 36 | Microwaves | 245 | 2,593 | 5 | 32 |
| 37 | Radio waves | 78 | 2,565 | 32 | 32 |
| 38 | Chemistry | 61 | 2,461 | 5.4K | 6.3K |
| 39 | Science | 188 | 2,439 | 1.1K | 12.3K |
| 40 | Condensed Matter | 192 | 2,197 | 136 | 531 |
| 41 | Computer Science | 151 | 2,189 | 5 | 17 |
| 42 | Biocompatible Materials | 42 | 2,062 | 1.7K | 1.7K |
| 43 | Electromagnetism | 120 | 1,891 | 1 | 6 |
| 44 | Electrical Engineering | 182 | 1,881 | 54 | 139 |
| 45 | Nonlinear Dynamics | 78 | 1,844 | 73 | 150 |
| 46 | Magnetic Materials | 36 | 1,698 | 214 | 131 |
| 47 | Analytical Chemistry | 35 | 1,632 | 1.9K | 1.4K |
| 48 | Boundary Value Problems | 86 | 1,603 | 1 | 7 |
| 49 | Antenna Arrays | 85 | 1,601 | 1 | 8 |
| 50 | Biomedical Engineering | 80 | 1,578 | 321 | 999 |
| 51 | Multimedia Systems | 155 | 1,563 | 5 | 6 |
| 52 | Microwave devices | 59 | 1,475 | 6 | 11 |
| 53 | Biology | 57 | 1,408 | 5.5K | 15.8K |
| 54 | Intelligent Transportation Systems | 104 | 1,398 | 7 | 34 |
| 55 | Information Science | 40 | 1,389 | 6 | 19 |
| 56 | microwave communication systems | 55 | 1,363 | 8 | 10 |
| 57 | Nervous system | 16 | 1,191 | 1.6K | 1.5K |
| 58 | Parallel Processing | 27 | 1,187 | 28 | 28 |
| 59 | Human-Computer Interaction | 44 | 1,151 | 7 | 29 |
| 60 | System analysis | 67 | 1,146 | 14 | 61 |
| 61 | optical devices | 25 | 1,050 | 22 | 8 |
| 62 | Medicine | 76 | 1,043 | 4.1K | 18.3K |
| 63 | Nanostructured Materials | 48 | 1,025 | 961 | 1.8K |
| 64 | Mathematical Physics | 78 | 1,023 | 138 | 324 |
| 65 | Wireless Communication | 131 | 1,011 | 1 | 1 |
| 65 | Detectors | 111 | 1,011 | 4 | 20 |
| 67 | Fractals | 35 | 946 | 7 | 9 |
| 68 | Solitons | 32 | 930 | 1 | 1 |
| 68 | Chaos | 32 | 930 | 1 | 1 |
| 70 | Control Theory | 54 | 923 | 111 | 201 |
| 71 | Molecular Biology | 24 | 880 | 12.6K | 16.3K |
| 72 | Radio wave propagation | 110 | 878 | 1 | 15 |
| 73 | Chemical Engineering | 34 | 849 | 1.2K | 1.9K |
| 74 | Technology | 69 | 828 | 194 | 1.0K |
| 75 | Statistical Mechanics | 95 | 791 | 3 | 34 |
| 76 | Telecommunications | 76 | 785 | 7 | 5 |
| 77 | Industrial Engineering | 47 | 783 | 167 | 460 |
| 78 | Optoelectronics | 130 | 768 | 1 | 1 |
| 79 | Bioengineering | 28 | 761 | 1.5K | 4.8K |
| 80 | Composite Materials | 33 | 754 | 68 | 99 |
| 81 | Biotechnology | 15 | 750 | 6.9K | 7.2K |
| 82 | Engineering Mathematics | 152 | 736 | 10 | 240 |
| 83 | energy conservation | 11 | 727 | 251 | 161 |
| 84 | Solid State Physics | 62 | 716 | 568 | 1.3K |
| 85 | Microelectronics | 27 | 685 | 472 | 1.7K |
| 86 | Cloud Computing | 43 | 673 | 1 | 7 |
| 87 | Information Systems | 18 | 636 | 54 | 141 |
| 88 | management | 17 | 632 | 233 | 349 |
| 89 | Astronomy | 21 | 621 | 1.3K | 1.3K |
| 90 | Molecules | 34 | 605 | 124 | 303 |
| 91 | miniaturization | 21 | 603 | 798 | 2.3K |
| 92 | Radiography | 14 | 594 | 262 | 304 |
| 93 | Computational Biology | 44 | 588 | 467 | 3.4K |
| 94 | Engineering | 58 | 549 | 116 | 725 |
| 95 | Cybernetics | 37 | 542 | 91 | 470 |
| 96 | Numerical Analysis | 37 | 531 | 218 | 389 |
| 97 | Computer Vision | 30 | 521 | 26 | 283 |
| 98 | Mechanical Engineering | 34 | 491 | 298 | 242 |
| 99 | fuel cells | 6 | 486 | 1.8K | 1.3K |
| 100 | sustainability | 37 | 462 | 2 | 139 |
| 101 | big data | 23 | 456 | 6 | 28 |
| 102 | Catalysis | 21 | 446 | 2.2K | 3.7K |
| 103 | Interactive multimedia | 36 | 437 | 7 | 3 |
| 104 | multimedia | 35 | 432 | 8 | 3 |
| 105 | Entropy | 81 | 418 | 2 | 43 |
| 106 | Fuzzy systems | 52 | 415 | 36 | 115 |
| 107 | Renewable Energy Sources | 6 | 369 | 727 | 1.2K |
| 108 | Computational Intelligence | 35 | 361 | 15 | 87 |
| 109 | Mobile Commerce | 53 | 355 | 1 | 4 |
| 110 | Quantum Optics | 48 | 347 | 11 | 136 |
| 110 | Atomic spectroscopy | 48 | 347 | 10 | 133 |
| 110 | Laser Spectroscopy | 48 | 347 | 10 | 129 |
| 113 | Robotics | 23 | 337 | 259 | 604 |
| 113 | Carbon | 5 | 337 | 48 | 19 |
| 115 | health planning | 14 | 325 | 252 | 332 |
| 116 | Electromagnetic waves | 16 | 302 | 17 | 14 |
| 117 | microwave antennas | 33 | 300 | 9 | 45 |
| 118 | Light | 2 | 298 | 2.3K | 1.2K |
| 119 | Computational Complexity | 40 | 297 | 6 | 49 |
| 120 | Nanochemistry | 5 | 288 | 1.1K | 194 |
| 121 | World Wide Web | 29 | 285 | 8 | 17 |
| 122 | Database Management | 18 | 283 | 18 | 94 |
| 122 | Semiconductors | 32 | 283 | 46 | 95 |
| 124 | Systems Analysis | 16 | 274 | 111 | 150 |
| 125 | Bioinformatics | 20 | 268 | 1.1K | 5.0K |
| 126 | environmental protection | 7 | 267 | 2.6K | 3.2K |
| 127 | Software Engineering | 27 | 266 | 49 | 282 |
| 128 | Sustainable Development | 6 | 262 | 532 | 649 |
| 129 | Flexible electronics | 3 | 261 | 28 | 17 |
| 130 | Ceramics | 19 | 254 | 474 | 1.1K |
| 131 | Data Mining | 22 | 252 | 36 | 740 |
| 132 | Dynamics | 35 | 251 | 75 | 405 |
| 133 | Educational Technology | 13 | 250 | 185 | 339 |
| 134 | Optoelectronic devices | 53 | 246 | 14 | 88 |
| 135 | Physical Chemistry | 34 | 242 | 574 | 3.8K |
| 135 | Nanostructures | 34 | 242 | 147 | 2.6K |
| 137 | software | 5 | 232 | 182 | 255 |
| 138 | Systems Theory | 8 | 230 | 47 | 24 |
| 139 | Economics | 9 | 226 | 2.0K | 2.0K |
| 140 | Signal Transduction | 2 | 225 | 5.2K | 2.6K |
| 141 | Psychology | 13 | 221 | 4.1K | 8.7K |
| 142 | Information Retrieval | 11 | 216 | 15 | 137 |
| 143 | Evolutionary Computation | 2 | 211 | 306 | 297 |
| 143 | Swarm Intelligence | 3 | 211 | 18 | 16 |
| 143 | Egypt | 3 | 211 | 278 | 120 |
| 146 | Cryptography | 13 | 206 | 104 | 111 |
| 147 | Astrophysics | 30 | 201 | 915 | 2.0K |
| 148 | Measurement | 4 | 200 | 388 | 160 |
| 149 | actuators | 11 | 198 | 168 | 412 |
| 149 | transducers | 11 | 198 | 168 | 412 |
| 151 | Cognitive Science | 16 | 197 | 341 | 1.8K |
| 152 | Education | 14 | 194 | 1.1K | 2.2K |
| 153 | Nanophotonics | 16 | 193 | 26 | 182 |
| 154 | Operations Research | 20 | 186 | 306 | 1.0K |
| 155 | Social Sciences | 6 | 182 | 2.1K | 1.6K |
| 156 | Medical Laboratory Science | 5 | 181 | 2.3K | 3.1K |
| 156 | Database Security | 10 | 181 | 3 | 6 |
| 158 | Decision making | 12 | 177 | 234 | 1.1K |
| 159 | Imaging systems | 19 | 176 | 16 | 38 |
| 159 | mathematical analysis | 39 | 176 | 270 | 619 |
| 161 | Nonlinear systems | 9 | 175 | 220 | 305 |
| 162 | Asia | 11 | 173 | 643 | 618 |
| 163 | Diagnostic Imaging | 22 | 167 | 634 | 3.3K |
| 164 | Databases | 14 | 163 | 8 | 87 |
| 165 | Cognitive Radio Networks | 27 | 162 | 1 | 23 |
| 166 | Energy Conversion | 5 | 161 | 1.9K | 3.2K |
| 167 | Applied Mathematics | 27 | 155 | 77 | 120 |
| 168 | Microstructure | 18 | 154 | 2 | 8 |
| 169 | Manufacturing Processes | 11 | 150 | 908 | 1.3K |
| 169 | Production Engineering | 11 | 150 | 771 | 1.2K |
| 171 | Electrochemistry | 9 | 147 | 2.5K | 3.3K |
| 172 | data protection | 3 | 143 | 82 | 36 |
| 173 | pottery | 12 | 142 | 557 | 1.5K |
| 174 | Biochemistry | 10 | 141 | 28.1K | 46.2K |
| 175 | Quantum theory | 17 | 140 | 58 | 290 |
| 176 | Glass | 11 | 139 | 626 | 1.6K |
| 177 | United States | 8 | 135 | 6.3K | 9.3K |
| 178 | machinery | 7 | 127 | 166 | 98 |
| 178 | Crystal growth | 3 | 127 | 1.7K | 1.4K |
| 180 | Nanoparticles | 21 | 123 | 660 | 5.1K |
| 181 | Power Electronics | 6 | 122 | 771 | 1.1K |
| 182 | Library Science | 7 | 118 | 85 | 60 |
| 183 | Environmental Chemistry | 2 | 114 | 5.5K | 5.0K |
| 183 | reasoning | 7 | 114 | 9 | 15 |
| 185 | Energy Policy | 3 | 113 | 940 | 916 |
| 185 | Cell Biology | 7 | 113 | 13.5K | 33.2K |
| 187 | Green Chemistry | 4 | 108 | 3.6K | 5.2K |
| 188 | Metals | 4 | 107 | 1.6K | 1.0K |
| 189 | Mechatronics | 11 | 105 | 160 | 645 |
| 189 | vibration | 10 | 105 | 395 | 629 |
| 191 | Sustainable Engineering | 2 | 104 | 5.0K | 4.4K |
| 192 | Medical Technology | 2 | 99 | 3.7K | 2.7K |
| 192 | Microfluidics | 1 | 99 | 866 | 299 |
| 192 | International Finance | 3 | 99 | 497 | 395 |
| 192 | Philippines | 6 | 99 | 24 | 36 |
| 196 | Electromagnetic compatibility | 10 | 98 | 63 | 160 |
| 197 | Nanoelectronics | 11 | 96 | 57 | 109 |
| 198 | Computer Graphics | 20 | 95 | 104 | 849 |
| 199 | Production Management | 4 | 93 | 291 | 944 |
| 200 | Marine Biology | 1 | 91 | 7.3K | 4.1K |
| 200 | Water pollution | 1 | 91 | 8.6K | 5.5K |
| 200 | Marine Pollution | 1 | 91 | 2.1K | 1.4K |
| 203 | Land use | 2 | 89 | 891 | 653 |
| 204 | Transportation | 3 | 85 | 1.4K | 1.3K |
| 205 | Medical innovations | 2 | 84 | 3.8K | 9.2K |
| 206 | Computer Engineering | 9 | 82 | 27 | 88 |
| 207 | genome | 3 | 81 | 5.9K | 11.9K |
| 208 | drug development | 1 | 80 | 7.1K | 8.9K |
| 209 | Luminescence | 5 | 79 | 379 | 422 |
| 210 | Process Control | 3 | 78 | 80 | 240 |
| 210 | Transnational corporations | 1 | 78 | 54 | 21 |
| 212 | Solid State Chemistry | 7 | 77 | 1.2K | 2.2K |
| 213 | Microprocessors | 5 | 76 | 5 | 42 |
| 214 | Technological Innovations | 3 | 75 | 798 | 936 |
| 214 | Intelligent Control Systems | 25 | 75 | 58 | 641 |
| 216 | Public Policy | 5 | 74 | 1.1K | 2.6K |
| 216 | Computer Literacy | 1 | 74 | 137 | 73 |
| 218 | Biological Systems | 4 | 73 | 433 | 1.1K |
| 218 | Social Systems | 4 | 73 | 23 | 38 |
| 220 | Expert Systems | 4 | 71 | 52 | 111 |
| 221 | Psychiatry | 6 | 65 | 9.9K | 25.8K |
| 221 | Sound | 4 | 65 | 725 | 964 |
| 223 | Biophysics | 7 | 64 | 18.7K | 38.6K |
| 224 | Computer Architecture | 6 | 63 | 25 | 67 |
| 224 | Remote Sensing | 4 | 63 | 488 | 718 |
| 226 | hazard mitigation | 3 | 62 | 619 | 1.0K |
| 226 | natural disasters | 3 | 62 | 1.0K | 1.7K |
| 228 | Regional Planning | 3 | 60 | 1.7K | 2.1K |
| 229 | Meteorology | 3 | 59 | 3.6K | 8.0K |
| 229 | Marine Meteorology | 3 | 59 | 268 | 331 |
| 229 | Integrated Optics | 13 | 59 | 1 | 12 |
| 229 | Ferroelectricity | 12 | 59 | 242 | 767 |
| 233 | Adaptive control systems | 6 | 58 | 257 | 536 |
| 234 | Strategic planning | 4 | 57 | 146 | 398 |
| 235 | Structural optimization | 1 | 55 | 768 | 506 |
| 235 | Social Change | 1 | 55 | 635 | 670 |
| 235 | Nonlinear mechanics | 3 | 55 | 42 | 96 |
| 238 | Algorithms | 4 | 53 | 404 | 636 |
| 238 | Medical Physics | 4 | 53 | 3.2K | 6.1K |
| 240 | Public Health | 7 | 52 | 9.3K | 28.4K |
| 241 | Supply Chain Management | 6 | 51 | 1 | 7 |
| 241 | Tourism | 2 | 51 | 909 | 1.2K |
| 241 | Formal Languages | 7 | 51 | 26 | 99 |
| 244 | Diagnosis | 2 | 50 | 1.3K | 1.3K |
| 244 | Spectrum analysis | 9 | 50 | 3.0K | 9.7K |
| 246 | Cytology | 3 | 49 | 24.9K | 45.3K |
| 246 | Biosensors | 2 | 49 | 3.3K | 7.0K |
| 246 | Queuing Theory | 2 | 49 | 204 | 214 |
| 246 | Cell differentiation | 2 | 49 | 11.3K | 21.1K |
| 246 | Cell cycle | 2 | 49 | 685 | 1.1K |
| 246 | cell proliferation | 2 | 49 | 733 | 1.2K |
| 252 | Cancer | 2 | 48 | 27.8K | 46.2K |
| 253 | Energy Storage | 3 | 47 | 2.6K | 4.4K |
| 253 | Sensor Networks | 8 | 47 | 1 | 24 |
| 253 | Mass Media | 1 | 47 | 654 | 261 |
| 253 | Electrophysiology | 3 | 47 | 960 | 2.7K |
| 257 | Ceramic materials | 4 | 45 | 657 | 1.2K |
| 258 | visualization | 10 | 44 | 732 | 2.4K |
| 259 | biomedicine | 2 | 43 | 1.7K | 3.0K |
| 259 | Radio frequency | 10 | 43 | 105 | 601 |
| 261 | Oncology | 1 | 42 | 17.9K | 19.1K |
| 261 | Medical Oncology | 1 | 42 | 14.8K | 14.6K |
| 261 | analysis | 1 | 42 | 499 | 442 |
| 261 | Mechanics | 1 | 42 | 3.2K | 1.7K |
| 265 | Population Genetics | 2 | 41 | 3.0K | 6.2K |
| 265 | Cognitive neuroscience | 7 | 41 | 832 | 4.8K |
| 267 | Logistics | 2 | 40 | 102 | 123 |
| 268 | Development Economics | 1 | 39 | 838 | 730 |
| 269 | air quality | 2 | 38 | 174 | 363 |
| 269 | Cerebral cortex | 4 | 38 | 1.9K | 6.3K |
| 271 | Population | 1 | 37 | 2.1K | 1.7K |
| 272 | Health Policy | 2 | 36 | 7.1K | 11.3K |
| 272 | Machine Learning | 5 | 36 | 107 | 510 |
| 272 | Bioelectronics | 1 | 36 | 4.1K | 6.9K |
| 275 | Geographic information systems | 6 | 35 | 424 | 1.6K |
| 276 | Neurology | 5 | 34 | 25.8K | 65.0K |
| 276 | Public Relations | 2 | 34 | 150 | 244 |
| 276 | Geometry | 7 | 34 | 650 | 1.0K |
| 276 | Public Administration | 2 | 34 | 1.4K | 1.8K |
| 276 | Diffraction | 5 | 34 | 46 | 94 |
| 276 | Powder Metallurgy | 5 | 34 | 153 | 171 |
| 276 | brain mapping | 8 | 34 | 807 | 5.9K |
| 283 | Aerospace Engineering | 7 | 33 | 66 | 259 |
| 283 | Fuzzy Logic | 1 | 33 | 192 | 159 |
| 283 | Electrocardiography | 1 | 33 | 265 | 184 |
| 283 | Alternative Medicine | 3 | 33 | 3.3K | 7.9K |
| 283 | Fuzzy Sets | 1 | 33 | 130 | 134 |
| 283 | complementary therapies | 3 | 33 | 3.4K | 8.0K |
| 283 | marketing | 4 | 33 | 378 | 1.1K |
| 283 | Fuzzy algorithms | 1 | 33 | 130 | 134 |
| 291 | Computational Linguistics | 6 | 32 | 54 | 369 |
| 291 | Speech Perception | 1 | 32 | 268 | 401 |
| 291 | auditory perception | 1 | 32 | 321 | 441 |
| 291 | language | 1 | 32 | 1.7K | 1.9K |
| 295 | Metallurgy | 3 | 31 | 2.8K | 4.2K |
| 295 | Mental Disorders | 2 | 31 | 14.3K | 23.9K |
| 295 | evaluation | 1 | 31 | 270 | 202 |
| 298 | Pathology | 1 | 30 | 22.0K | 26.7K |
| 298 | Biochemical Engineering | 1 | 30 | 9.6K | 13.5K |
| 298 | Developmental Psychology | 4 | 30 | 1.0K | 3.3K |
| 298 | Multivariate Analysis | 2 | 30 | 253 | 441 |
| 298 | Quantum Communication | 2 | 30 | 120 | 253 |
| 298 | Combinatorial analysis | 9 | 30 | 342 | 705 |
| 298 | human development | 4 | 30 | 640 | 2.4K |
| 305 | Structural dynamics | 2 | 29 | 1.1K | 1.8K |
| 305 | Ultrasonics | 3 | 29 | 1.1K | 3.6K |
| 305 | human behavior | 2 | 29 | 5.7K | 12.6K |
| 305 | research and development | 2 | 29 | 105 | 425 |
| 309 | phototherapy | 2 | 28 | 373 | 325 |
| 310 | Physiology | 2 | 27 | 25.0K | 43.7K |
| 310 | Terahertz Technology | 3 | 27 | 77 | 218 |
| 310 | Nonlinear Optics | 5 | 27 | 42 | 190 |
| 313 | Social Psychology | 4 | 26 | 1.8K | 5.7K |
| 313 | Molecular Spectroscopy | 3 | 26 | 2.0K | 5.2K |
| 313 | Neuroplasticity | 4 | 26 | 227 | 2.0K |
| 313 | Aviation | 5 | 26 | 28 | 73 |
| 313 | Flow cytometry | 3 | 26 | 544 | 2.5K |
| 318 | behavioral medicine | 1 | 25 | 5.1K | 6.8K |
| 318 | Bifurcation Theory | 5 | 25 | 273 | 1.1K |
| 318 | micromechanics | 2 | 25 | 694 | 1.4K |
| 318 | Coding Theory | 2 | 25 | 398 | 376 |
| 318 | Ultrasound | 2 | 25 | 772 | 1.6K |
| 318 | Pollution | 3 | 25 | 16.3K | 42.7K |
| 324 | Political Science | 2 | 24 | 2.0K | 2.3K |
| 324 | Evolutionary Genetics | 2 | 24 | 789 | 2.0K |
| 324 | Molecular Epidemiology | 2 | 24 | 789 | 2.0K |
| 324 | Ocean Engineering | 1 | 24 | 904 | 909 |
| 324 | Inflammation | 1 | 24 | 7.2K | 10.1K |
| 324 | innovation | 2 | 24 | 277 | 980 |
| 324 | city planning | 1 | 24 | 3.2K | 3.1K |
| 331 | Ophthalmology | 3 | 23 | 3.9K | 9.9K |
| 331 | Brain | 1 | 23 | 15.5K | 19.6K |
| 331 | commerce | 4 | 23 | 460 | 1.4K |
| 331 | energy resources | 1 | 23 | 768 | 1.8K |
| 335 | Ecology | 2 | 22 | 27.4K | 55.2K |
| 335 | Cosmology | 6 | 22 | 365 | 1.2K |
| 335 | Particle Physics | 6 | 22 | 100 | 493 |
| 335 | Wildlife conservation | 2 | 22 | 661 | 1.5K |
| 335 | Drying | 1 | 22 | 797 | 989 |
| 335 | Environment | 2 | 22 | 21.1K | 48.8K |
| 335 | Teaching | 1 | 22 | 3.5K | 3.1K |
| 335 | personality | 3 | 22 | 722 | 2.0K |
| 335 | environmental pollution | 2 | 22 | 13.4K | 27.5K |
| 335 | Social behavior | 3 | 22 | 1.7K | 5.9K |
| 335 | Earth Sciences | 5 | 22 | 2.5K | 7.4K |
| 346 | Algebra | 9 | 21 | 627 | 1.3K |
| 346 | Migration | 1 | 21 | 137 | 130 |
| 346 | rehabilitation | 5 | 21 | 2.8K | 12.9K |
| 349 | Microbiology | 3 | 20 | 30.3K | 64.8K |
| 349 | Economic History | 2 | 20 | 4.5K | 5.6K |
| 349 | Geophysics | 4 | 20 | 5.6K | 15.4K |
| 349 | Eastern Europe | 4 | 20 | 440 | 1.0K |
| 349 | identity recognition | 2 | 20 | 19 | 50 |
| 354 | Graph Theory | 8 | 19 | 320 | 992 |
| 355 | Microwave circuits | 8 | 18 | 11 | 174 |
| 355 | Ubiquitous computing | 12 | 18 | 2 | 41 |
| 355 | finance | 2 | 18 | 1.7K | 3.0K |
| 358 | consumer behavior | 1 | 17 | 497 | 901 |
| 358 | Simulation Methods | 2 | 17 | 124 | 282 |
| 358 | Interfaces | 2 | 17 | 7 | 57 |
| 358 | optical pattern recognition | 2 | 17 | 104 | 136 |
| 358 | Instructional materials | 1 | 17 | 63 | 100 |
| 358 | Creativity | 1 | 17 | 99 | 260 |
| 364 | Soil Mechanics | 2 | 16 | 1.1K | 2.0K |
| 364 | Rock Mechanics | 2 | 16 | 728 | 1.3K |
| 364 | Integrated Circuits | 4 | 16 | 616 | 1.1K |
| 364 | Evidence-Based Medicine | 2 | 16 | 2.8K | 7.6K |
| 368 | Discrete Mathematics | 3 | 15 | 316 | 423 |
| 368 | Bioorganic chemistry | 2 | 15 | 7.9K | 15.6K |
| 368 | graph | 3 | 15 | 316 | 423 |
| 371 | Pharmacology | 2 | 14 | 35.7K | 63.9K |
| 371 | Organic Chemistry | 2 | 14 | 9.2K | 17.6K |
| 371 | Radiation | 2 | 14 | 3.0K | 6.8K |
| 371 | Radiobiology | 1 | 14 | 9.5K | 12.9K |
| 371 | Business Ethics | 1 | 14 | 753 | 1.6K |
| 371 | cell physiology | 1 | 14 | 12.7K | 23.0K |
| 377 | Histology | 1 | 13 | 13.7K | 22.4K |
| 377 | Statistics | 9 | 13 | 2.3K | 11.0K |
| 377 | Visual Communication | 2 | 13 | 60 | 169 |
| 377 | Neuroimaging | 1 | 13 | 1.2K | 2.1K |
| 377 | Image enhancement | 2 | 13 | 8 | 65 |
| 377 | data collection | 4 | 13 | 411 | 4.3K |
| 377 | mental processes | 1 | 13 | 1.3K | 2.0K |
| 377 | Cell surface receptors | 1 | 13 | 314 | 657 |
| 377 | econometric models | 2 | 13 | 32 | 164 |
| 386 | Cartography | 2 | 12 | 336 | 868 |
| 386 | Product Design | 1 | 12 | 292 | 444 |
| 386 | Corporate governance | 2 | 12 | 221 | 750 |
| 386 | Evolution equations | 1 | 12 | 253 | 205 |
| 390 | Genetic engineering | 2 | 11 | 8.3K | 24.6K |
| 390 | Oral Medicine | 1 | 11 | 2.6K | 2.8K |
| 390 | Pharmaceutical Chemistry | 1 | 11 | 26.5K | 41.2K |
| 390 | Biomechanics | 1 | 11 | 6.2K | 10.3K |
| 390 | Broadcasting | 1 | 11 | 207 | 365 |
| 390 | Microscopy | 3 | 11 | 3.3K | 9.8K |
| 390 | India | 2 | 11 | 2.3K | 3.8K |
| 397 | Surgery | 1 | 10 | 14.4K | 27.7K |
| 397 | Applied Linguistics | 1 | 10 | 683 | 989 |
| 397 | Quantum Chemistry | 2 | 10 | 1.4K | 2.9K |
| 397 | Distributed Databases | 2 | 10 | 124 | 359 |
| 397 | infrared radiation | 3 | 10 | 147 | 277 |
| 397 | Decision Support Systems | 3 | 10 | 71 | 533 |
| 397 | probabilities | 7 | 10 | 667 | 2.2K |
| 397 | color | 2 | 10 | 249 | 778 |
| 405 | Transportation Engineering | 1 | 9 | 639 | 1.3K |
| 405 | Surface Chemistry | 2 | 9 | 10.4K | 28.1K |
| 405 | Mineralogy | 1 | 9 | 3.0K | 4.3K |
| 405 | Systems Biology | 2 | 9 | 5.4K | 15.3K |
| 405 | Social Networks | 2 | 9 | 111 | 548 |
| 405 | Geodesy | 1 | 9 | 816 | 1.2K |
| 405 | Environmental monitoring | 1 | 9 | 17.1K | 30.8K |
| 405 | Online social networks | 2 | 9 | 188 | 881 |
| 405 | Raman spectroscopy | 2 | 9 | 817 | 3.1K |
| 414 | Neuropsychology | 1 | 8 | 12.7K | 21.7K |
| 414 | Polymers | 3 | 8 | 13.2K | 37.0K |
| 414 | Molecular cloning | 1 | 8 | 5.9K | 12.0K |
| 414 | Noise | 1 | 8 | 269 | 390 |
| 414 | Genetic recombination | 1 | 8 | 5.6K | 11.5K |
| 414 | Calculus of Variations | 1 | 8 | 795 | 861 |
| 414 | Business | 1 | 8 | 2.2K | 3.4K |
| 414 | Calorimetry | 1 | 8 | 2.9K | 4.4K |
| 414 | Semigroups | 1 | 8 | 482 | 435 |
| 414 | Recombinant DNA | 1 | 8 | 6.8K | 13.7K |
| 414 | Natural history | 10 | 8 | 4.6K | 38.4K |
| 414 | Digital Audio Broadcasting | 2 | 8 | 9 | 85 |
| 414 | Thermal analysis | 1 | 8 | 2.9K | 4.4K |
| 414 | Cognition | 1 | 8 | 6.0K | 10.6K |
| 428 | Speech-Language Pathology | 2 | 7 | 160 | 483 |
| 428 | Epidemiology | 2 | 7 | 16.3K | 39.5K |
| 428 | Linguistics | 2 | 7 | 1.5K | 3.6K |
| 428 | Astrodynamics | 2 | 7 | 12 | 47 |
| 428 | Educational Psychology | 2 | 7 | 1.7K | 4.4K |
| 428 | Environmental Health | 2 | 7 | 22.4K | 60.8K |
| 428 | automatic speech recognition | 2 | 7 | 6 | 84 |
| 428 | drinking water | 1 | 7 | 247 | 576 |
| 428 | Cell metabolism | 1 | 7 | 4.0K | 9.5K |
| 428 | hygiene | 1 | 7 | 1.6K | 3.4K |
| 438 | Crime prevention | 5 | 6 | 105 | 887 |
| 438 | Number Theory | 4 | 6 | 473 | 1.6K |
| 438 | Combinatorial optimization | 3 | 6 | 399 | 1.3K |
| 438 | Environmental Management | 3 | 6 | 3.6K | 18.8K |
| 438 | organizational effectiveness | 1 | 6 | 611 | 1.3K |
| 438 | Chemical analysis | 1 | 6 | 4.4K | 8.5K |
| 438 | corporate culture | 1 | 6 | 92 | 241 |
| 438 | Sun | 1 | 6 | 533 | 736 |
| 438 | Solar System | 1 | 6 | 614 | 895 |
| 447 | Nutrition | 1 | 5 | 33.8K | 60.3K |
| 447 | Hydrogeology | 1 | 5 | 2.2K | 4.7K |
| 447 | Health Services Research | 1 | 5 | 6.5K | 11.8K |
| 447 | Stochastic Processes | 2 | 5 | 1.3K | 3.4K |
| 447 | Differential Equations | 1 | 5 | 705 | 952 |
| 447 | Organizational learning | 2 | 5 | 256 | 1.1K |
| 447 | Primary health care | 1 | 5 | 6.6K | 12.7K |
| 447 | Knowledge management | 3 | 5 | 74 | 630 |
| 447 | economic policy | 2 | 5 | 2.6K | 6.4K |
| 447 | Data Warehousing | 2 | 5 | 7 | 45 |
| 447 | Food | 1 | 5 | 15.8K | 30.2K |
| 447 | Plastics | 1 | 5 | 5.1K | 9.3K |
| 447 | particles | 1 | 5 | 1.7K | 3.8K |
| 447 | infrared technology | 2 | 5 | 209 | 510 |
| 447 | enzymes | 1 | 5 | 6.0K | 13.1K |
| 462 | Anatomy | 1 | 4 | 13.7K | 26.7K |
| 462 | Food Science | 1 | 4 | 507 | 967 |
| 462 | Embedded Systems | 1 | 4 | 38 | 117 |
| 462 | Hydrology | 1 | 4 | 8.3K | 15.8K |
| 462 | Ecological Genetics | 1 | 4 | 1.4K | 2.8K |
| 462 | Critical Care | 1 | 4 | 9.5K | 21.7K |
| 462 | Acoustics | 1 | 4 | 507 | 692 |
| 462 | Conservation Biology | 1 | 4 | 2.5K | 5.4K |
| 462 | Acoustic holography | 1 | 4 | 14 | 15 |
| 462 | Physical organic chemistry | 1 | 4 | 4.6K | 8.2K |
| 462 | emergency management | 1 | 4 | 1.7K | 3.9K |
| 462 | Water | 1 | 4 | 7.1K | 15.0K |
| 462 | occupational diseases | 1 | 4 | 3.1K | 7.2K |
| 462 | Biodiversity conservation | 1 | 4 | 5.8K | 11.8K |
| 462 | Holography | 1 | 4 | 14 | 15 |
| 462 | Acoustic imaging | 1 | 4 | 14 | 15 |
| 462 | neuronal plasticity | 1 | 4 | 1.1K | 3.8K |
| 462 | Ultrasonic Imaging | 1 | 4 | 660 | 1.9K |
| 462 | water supply | 1 | 4 | 3.1K | 6.8K |
| 462 | Electromagnetic fields | 2 | 4 | 259 | 1.2K |
| 462 | High performance computing | 1 | 4 | 15 | 40 |
| 462 | national security | 1 | 4 | 471 | 897 |
| 462 | Military sociology | 1 | 4 | 3 | 1 |
| 462 | Behavior | 1 | 4 | 14.6K | 29.4K |
| 462 | Biodiversity | 1 | 4 | 8.0K | 15.1K |
| 487 | Humanities | 1 | 3 | 2.8K | 5.2K |
| 487 | Sociology | 1 | 3 | 8.1K | 17.0K |
| 487 | Environmental Engineering | 1 | 3 | 20.2K | 40.5K |
| 487 | Functional Analysis | 2 | 3 | 735 | 1.6K |
| 487 | Higher Education | 1 | 3 | 899 | 2.3K |
| 487 | Quality Control | 1 | 3 | 3.6K | 8.0K |
| 487 | Solar Energy | 1 | 3 | 1.2K | 3.0K |
| 487 | economic indicators | 1 | 3 | 169 | 381 |
| 487 | Sleep Disorders | 1 | 3 | 8.3K | 16.3K |
| 487 | Nonlinear functional analysis | 1 | 3 | 728 | 1.4K |
| 487 | Group theory | 1 | 3 | 241 | 279 |
| 487 | X-rays | 1 | 3 | 2.5K | 5.7K |
| 487 | Respiration | 1 | 3 | 8.1K | 17.1K |
| 487 | polymerization | 2 | 3 | 11.9K | 29.7K |
| 487 | tomography | 1 | 3 | 1.6K | 3.3K |
| 487 | tests | 1 | 3 | 194 | 726 |
| 487 | Catalysts | 1 | 3 | 1.8K | 3.2K |
| 487 | Sleep | 1 | 3 | 8.2K | 16.3K |
| 505 | Oceanography | 1 | 2 | 4.7K | 9.6K |
| 505 | Electronic Packaging | 1 | 2 | 512 | 1.1K |
| 505 | Information visualization | 1 | 2 | 310 | 761 |
| 505 | Energy Consumption | 1 | 2 | 597 | 1.6K |
| 505 | Fracture mechanics | 1 | 2 | 1.7K | 3.3K |
| 505 | Corporate Social Responsibility | 1 | 2 | 213 | 711 |
| 505 | digital preservation | 1 | 2 | 77 | 266 |
| 505 | Scheduling | 1 | 2 | 187 | 538 |
| 505 | environmental auditing | 1 | 2 | 214 | 715 |
| 505 | nuclear magnetic resonance | 1 | 2 | 4.3K | 8.6K |
| 505 | Production Scheduling | 1 | 2 | 187 | 538 |
| 505 | Magnetic Resonance Spectroscopy | 1 | 2 | 4.4K | 9.1K |
| 505 | East Asia | 3 | 2 | 283 | 1.8K |
| 505 | infection | 1 | 2 | 7.6K | 17.6K |
| 505 | Semantic web | 3 | 2 | 22 | 408 |
| 505 | Central Asia | 1 | 2 | 259 | 778 |
| 505 | technical education | 1 | 2 | 1.3K | 3.1K |
| 505 | energy development | 2 | 2 | 920 | 5.3K |
| 523 | Geology | 2 | 1 | 5.7K | 16.0K |
| 523 | Nuclear Engineering | 1 | 1 | 2.4K | 4.4K |
| 523 | Occupational Health | 1 | 1 | 3.6K | 7.9K |
| 523 | Photography | 2 | 1 | 526 | 1.8K |
| 523 | Industrial Statistics | 1 | 1 | 386 | 1.0K |
| 523 | Mental Health | 1 | 1 | 6.0K | 12.9K |
| 523 | Psychopharmacology | 2 | 1 | 6.2K | 19.2K |
| 523 | industrial hygiene | 1 | 1 | 3.4K | 8.0K |
| 523 | Computer-Aided Design | 2 | 1 | 1.5K | 6.2K |
| 523 | Open source software | 1 | 1 | 19 | 102 |
| 523 | Superconductors | 1 | 1 | 1.3K | 2.2K |
| 523 | Quality Assurance | 1 | 1 | 406 | 1.2K |
| 523 | Quantum Gravity | 1 | 1 | 2.8K | 4.3K |
| 523 | Chemical safety | 1 | 1 | 80 | 214 |
| 523 | Spectroscopy | 2 | 1 | 167 | 792 |
| 523 | Youth | 1 | 1 | 1.4K | 3.4K |
| 523 | Europe | 1 | 1 | 15.9K | 30.2K |
| 523 | Psychophysiology | 2 | 1 | 10.2K | 30.3K |
| 541 | Agricultural Engineering | 1 | 0 | 535 | 1.3K |
| 541 | Medical genetics | 1 | 0 | 29.3K | 56.1K |
| 541 | Genomics | 1 | 0 | 22.9K | 47.2K |
| 541 | Sports Medicine | 3 | 0 | 5.7K | 24.8K |
| 541 | Operator theory | 1 | 0 | 807 | 1.3K |
| 541 | Neurophysiology | 1 | 0 | 21.5K | 42.3K |
| 541 | Crowdsourcing | 1 | 0 | 11 | 31 |
| 541 | Collective behavior | 1 | 0 | 112 | 473 |
| 541 | Ergodic Theory | 1 | 0 | 449 | 914 |
| 541 | electric vehicles | 2 | 0 | 315 | 1.0K |
| 541 | Financial management | 1 | 0 | 1.0K | 3.4K |
| 541 | Sports | 3 | 0 | 4.0K | 19.8K |
| 541 | Foreign relations | 1 | 0 | 96 | 255 |
| 541 | Biometrics | 1 | 0 | 4.9K | 10.3K |
| 541 | Metallography | 1 | 0 | 195 | 644 |
| 541 | International Business | 1 | 0 | 202 | 748 |
| 541 | Japan | 1 | 0 | 8.5K | 18.2K |
| 541 | cardiac catheterization | 1 | 0 | 1.3K | 3.5K |
| 541 | plasma | 1 | 0 | 204 | 612 |
| 541 | textile fibers | 1 | 0 | 1.1K | 2.7K |
| 541 | pain | 1 | 0 | 9.3K | 22.6K |
| 541 | Molecular structure | 1 | 0 | 9.0K | 19.8K |
| 541 | Israel | 1 | 0 | 449 | 1.3K |
| 541 | Navigation | 1 | 0 | 645 | 1.8K |
| 541 | Jews | 1 | 0 | 298 | 703 |
| 541 | applications | 1 | 0 | 114 | 301 |
| 541 | Textile industry | 1 | 0 | 969 | 2.4K |
