| 1 | Composite Materials | 16 | 1.3K | 1201 | 802 |
| 2 | Nanotechnology | 4 | 919 | 4174 | 1941 |
| 3 | Signal Processing | 12 | 537 | 1367 | 1122 |
| 4 | Heat Exchangers | 12 | 534 | 509 | 474 |
| 5 | Information Science | 11 | 527 | 1284 | 928 |
| 6 | Chemical Engineering | 15 | 498 | 2314 | 2321 |
| 7 | Materials | 8 | 430 | 3951 | 2984 |
| 8 | Physics | 7 | 405 | 6425 | 6154 |
| 9 | Manufacturing Processes | 5 | 365 | 1835 | 1062 |
| 10 | System analysis | 18 | 357 | 978 | 1045 |
| 11 | Science | 21 | 347 | 4778 | 7337 |
| 12 | Biocompatible Materials | 4 | 330 | 3193 | 2493 |
| 13 | Biochemical Engineering | 11 | 329 | 1786 | 2541 |
| 14 | Software Engineering | 11 | 322 | 569 | 484 |
| 15 | Materials Science | 4 | 321 | 4067 | 2602 |
| 16 | Detectors | 8 | 305 | 1000 | 653 |
| 17 | Research | 17 | 274 | 4514 | 5970 |
| 18 | Robotics | 11 | 270 | 923 | 918 |
| 19 | Political Science | 7 | 258 | 1191 | 694 |
| 19 | coal | 9 | 258 | 935 | 1162 |
| 21 | Public Policy | 13 | 243 | 726 | 960 |
| 21 | Systems Analysis | 13 | 243 | 404 | 480 |
| 23 | Statistics | 13 | 241 | 1343 | 1260 |
| 24 | computer networks | 10 | 210 | 1488 | 1575 |
| 25 | Interfaces | 8 | 201 | 99 | 101 |
| 26 | Artificial Intelligence | 13 | 200 | 1990 | 2444 |
| 27 | Renewable Energy Sources | 8 | 191 | 1703 | 2538 |
| 28 | Biomedical Engineering | 5 | 182 | 4257 | 3834 |
| 29 | Human Resources | 3 | 173 | 434 | 360 |
| 30 | Optics | 5 | 171 | 3872 | 2564 |
| 31 | Social Change | 3 | 167 | 998 | 947 |
| 32 | Power Electronics | 7 | 158 | 743 | 934 |
| 33 | Energy Policy | 6 | 157 | 1930 | 2482 |
| 34 | Social Sciences | 5 | 147 | 3006 | 1942 |
| 35 | Sociology | 5 | 144 | 2399 | 2063 |
| 36 | Solid State Physics | 2 | 141 | 3883 | 2581 |
| 37 | Carbon | 6 | 139 | 935 | 1389 |
| 37 | Condensed Matter | 1 | 139 | 4097 | 2312 |
| 39 | Solar Energy | 3 | 135 | 1726 | 1602 |
| 40 | Information Technology | 8 | 134 | 1673 | 1805 |
| 40 | Demography | 4 | 134 | 596 | 562 |
| 40 | Population | 3 | 134 | 1028 | 769 |
| 43 | probabilities | 6 | 132 | 945 | 673 |
| 44 | management | 4 | 127 | 2976 | 2620 |
| 45 | Neural circuitry | 7 | 122 | 1307 | 1796 |
| 46 | Photonics | 10 | 118 | 1157 | 1732 |
| 47 | Electrical Engineering | 4 | 117 | 3303 | 2147 |
| 48 | Economics | 5 | 116 | 3313 | 2734 |
| 49 | Europe | 6 | 109 | 2307 | 2332 |
| 50 | families | 4 | 108 | 738 | 565 |
| 51 | Quality of life | 1 | 106 | 2480 | 1550 |
| 52 | Mathematics | 7 | 105 | 4151 | 3673 |
| 53 | Medical Technology | 1 | 103 | 3232 | 1668 |
| 54 | Business | 3 | 97 | 2252 | 1952 |
| 55 | Quantum electronics | 8 | 96 | 1063 | 1319 |
| 56 | biological evolution | 2 | 95 | 2424 | 2295 |
| 57 | social conflict | 2 | 90 | 283 | 154 |
| 58 | cultural policy | 5 | 89 | 147 | 139 |
| 59 | Fiber Optics | 3 | 83 | 1037 | 954 |
| 60 | Production Engineering | 3 | 82 | 2015 | 1640 |
| 61 | Statistical physics | 6 | 81 | 2712 | 2966 |
| 62 | Library Science | 5 | 80 | 915 | 592 |
| 63 | Biomechanics | 2 | 77 | 1806 | 1440 |
| 63 | lasers | 7 | 77 | 1507 | 1862 |
| 65 | Engineering | 5 | 76 | 3784 | 3917 |
| 66 | Biology | 5 | 75 | 7985 | 10415 |
| 66 | Evolutionary economics | 1 | 75 | 330 | 167 |
| 66 | Nanostructured Materials | 4 | 75 | 2669 | 3058 |
| 66 | Social behavior | 1 | 75 | 1844 | 1212 |
| 66 | Population Dynamics | 1 | 75 | 381 | 195 |
| 71 | Simulation | 2 | 69 | 276 | 282 |
| 71 | theoretical models | 2 | 69 | 276 | 282 |
| 73 | Telecommunication Systems | 4 | 67 | 1473 | 1448 |
| 74 | Computational Biology | 2 | 63 | 3581 | 3240 |
| 75 | Catalysis | 2 | 61 | 3543 | 3561 |
| 75 | Biomass Energy | 3 | 61 | 2490 | 3050 |
| 75 | evaluation | 3 | 61 | 161 | 140 |
| 78 | Bioinformatics | 1 | 57 | 3315 | 2529 |
| 79 | Medicine | 6 | 56 | 8724 | 12797 |
| 79 | organization | 1 | 56 | 1213 | 984 |
| 81 | Biochemistry | 2 | 55 | 9013 | 8977 |
| 81 | Speech-Language Pathology | 1 | 55 | 555 | 341 |
| 81 | Linguistics | 1 | 55 | 2330 | 1178 |
| 81 | Drug design | 1 | 55 | 2885 | 2254 |
| 81 | automatic speech recognition | 1 | 55 | 323 | 220 |
| 86 | Regional Planning | 2 | 52 | 1819 | 1608 |
| 87 | Radio waves | 5 | 51 | 753 | 1172 |
| 87 | Radio | 5 | 51 | 1268 | 1886 |
| 89 | Multimedia Systems | 1 | 49 | 2781 | 1914 |
| 89 | multimedia | 1 | 49 | 879 | 758 |
| 89 | Interactive multimedia | 1 | 49 | 1066 | 829 |
| 92 | Biotechnology | 1 | 47 | 8179 | 7327 |
| 92 | biofuels | 1 | 47 | 544 | 732 |
| 94 | Automation | 3 | 46 | 2198 | 2669 |
| 94 | terrorism | 1 | 46 | 483 | 282 |
| 96 | Information Systems | 2 | 45 | 1788 | 1900 |
| 96 | Operations Research | 3 | 45 | 2124 | 2371 |
| 96 | Culture | 2 | 45 | 1351 | 985 |
| 99 | Social Stratification | 1 | 44 | 163 | 126 |
| 99 | Social mobility | 1 | 44 | 163 | 126 |
| 99 | Colloids | 2 | 44 | 3886 | 4368 |
| 99 | social status | 1 | 44 | 163 | 126 |
| 99 | Occupational mobility | 1 | 44 | 163 | 126 |
| 104 | Optical materials | 2 | 42 | 2819 | 3140 |
| 104 | Autonomous robots | 2 | 42 | 237 | 350 |
| 106 | Structural Engineering | 2 | 41 | 1926 | 1896 |
| 106 | Geographic information systems | 1 | 41 | 1918 | 1293 |
| 106 | Integrated Circuits | 2 | 41 | 1091 | 671 |
| 106 | mass transfer | 2 | 41 | 1869 | 2096 |
| 110 | Semiconductors | 1 | 40 | 2957 | 2324 |
| 111 | Molecular Biology | 2 | 39 | 8461 | 9609 |
| 111 | Land Use Planning | 1 | 39 | 640 | 622 |
| 113 | Mobile Computing | 3 | 38 | 1347 | 1483 |
| 113 | Metallurgy | 1 | 38 | 3464 | 2674 |
| 113 | Metals | 1 | 38 | 3058 | 2604 |
| 116 | Surface Chemistry | 1 | 36 | 4769 | 4457 |
| 116 | Surface-Active Agents | 1 | 36 | 1792 | 1942 |
| 116 | Political Participation | 4 | 36 | 266 | 440 |
| 116 | Industrial Policy | 1 | 36 | 828 | 703 |
| 116 | election law | 4 | 36 | 199 | 325 |
| 116 | Surface properties | 1 | 36 | 1867 | 2020 |
| 116 | innovation | 1 | 36 | 1042 | 1049 |
| 116 | Elections | 4 | 36 | 285 | 392 |
| 116 | Voting | 4 | 36 | 188 | 321 |
| 125 | Political Sociology | 1 | 35 | 753 | 552 |
| 126 | Human-Computer Interaction | 2 | 34 | 1989 | 2189 |
| 126 | Terahertz Technology | 2 | 34 | 215 | 318 |
| 128 | Systems Engineering | 5 | 33 | 1850 | 2701 |
| 128 | Avionics | 3 | 33 | 150 | 229 |
| 128 | energy resources | 1 | 33 | 2054 | 2532 |
| 131 | Hydrology | 2 | 32 | 2973 | 3244 |
| 131 | Economic History | 5 | 32 | 2941 | 3532 |
| 131 | Journalism | 4 | 32 | 484 | 564 |
| 131 | Popular culture | 1 | 32 | 884 | 374 |
| 131 | Water | 2 | 32 | 2872 | 3773 |
| 131 | economic policy | 2 | 32 | 2905 | 2510 |
| 131 | Microwaves | 1 | 32 | 2075 | 1634 |
| 131 | Microwave devices | 1 | 32 | 818 | 651 |
| 139 | Wireless Communication Systems | 3 | 31 | 2326 | 2755 |
| 139 | Cognitive Science | 1 | 31 | 2328 | 2264 |
| 141 | Industrial Safety | 2 | 30 | 1483 | 1713 |
| 141 | Radio wave propagation | 6 | 30 | 616 | 1046 |
| 141 | Entropy | 2 | 30 | 1497 | 1492 |
| 144 | radioactive waste | 2 | 27 | 1014 | 1871 |
| 144 | industrial waste | 2 | 27 | 1058 | 1871 |
| 144 | Hazardous waste | 2 | 27 | 1195 | 1989 |
| 147 | Historical Geography | 2 | 26 | 204 | 176 |
| 148 | Geriatrics | 1 | 25 | 4469 | 4106 |
| 148 | Multivariate Analysis | 5 | 25 | 354 | 729 |
| 148 | Economic Integration | 1 | 25 | 224 | 96 |
| 148 | Gerontology | 1 | 25 | 3093 | 2623 |
| 148 | Germany | 1 | 25 | 1243 | 606 |
| 148 | commerce | 1 | 25 | 2545 | 2172 |
| 148 | Aging | 1 | 25 | 4255 | 4092 |
| 155 | Biophysics | 2 | 24 | 6391 | 7677 |
| 155 | Meteorology | 1 | 24 | 3234 | 3538 |
| 155 | Intelligent Transportation Systems | 2 | 24 | 1341 | 1826 |
| 155 | Electromagnetism | 2 | 24 | 1270 | 1460 |
| 155 | Boundary Value Problems | 2 | 24 | 936 | 1045 |
| 155 | Antenna Arrays | 2 | 24 | 656 | 897 |
| 155 | Liquid Crystals | 2 | 24 | 1131 | 971 |
| 155 | Powder Metallurgy | 2 | 24 | 440 | 322 |
| 163 | Chemistry | 2 | 23 | 9677 | 11621 |
| 163 | Quality Control | 2 | 23 | 2327 | 3035 |
| 165 | Systems Biology | 1 | 22 | 2593 | 2973 |
| 165 | Remote Sensing | 1 | 22 | 2446 | 1998 |
| 165 | cell physiology | 1 | 22 | 2250 | 2768 |
| 165 | Developing countries | 1 | 22 | 3790 | 3695 |
| 169 | Geography | 3 | 21 | 2252 | 3261 |
| 169 | Cybernetics | 3 | 21 | 1613 | 2524 |
| 169 | Strategic planning | 1 | 21 | 1277 | 1295 |
| 169 | Digital humanities | 1 | 21 | 207 | 209 |
| 173 | Philosophy of Mind | 1 | 20 | 496 | 438 |
| 173 | Electrochemistry | 1 | 20 | 4531 | 4404 |
| 173 | moral development | 1 | 20 | 252 | 305 |
| 173 | Molecular evolution | 1 | 20 | 2395 | 2879 |
| 177 | Structural dynamics | 1 | 19 | 1576 | 1831 |
| 177 | vibration | 1 | 19 | 1924 | 1934 |
| 179 | International Law | 1 | 17 | 679 | 319 |
| 179 | Comparative Law | 2 | 17 | 310 | 171 |
| 181 | Mechatronics | 2 | 16 | 1153 | 1700 |
| 181 | Human Geography | 2 | 16 | 1295 | 1701 |
| 181 | Nanostructures | 3 | 16 | 2283 | 3627 |
| 181 | Calorimetry | 1 | 16 | 1900 | 2024 |
| 181 | Metallography | 1 | 16 | 1350 | 1567 |
| 181 | Earth Sciences | 2 | 16 | 3663 | 4607 |
| 181 | Thermal analysis | 1 | 16 | 1900 | 2024 |
| 188 | Control Theory | 4 | 15 | 1554 | 2492 |
| 188 | Mass Media | 4 | 15 | 842 | 1047 |
| 188 | human behavior | 1 | 15 | 3637 | 4676 |
| 188 | Telecommunication | 4 | 15 | 2450 | 3796 |
| 188 | Asia | 1 | 15 | 4573 | 4324 |
| 188 | Behavior | 1 | 15 | 4567 | 5637 |
| 194 | Computer Science | 1 | 14 | 3507 | 3368 |
| 194 | Communication | 4 | 14 | 1848 | 3286 |
| 196 | Geology | 1 | 13 | 4036 | 4297 |
| 196 | Oceanography | 1 | 13 | 2548 | 2889 |
| 196 | Hematology | 1 | 13 | 3844 | 4140 |
| 196 | Software Maintenance | 3 | 13 | 170 | 421 |
| 196 | Environment | 1 | 13 | 6965 | 8802 |
| 196 | Communications | 1 | 13 | 75 | 79 |
| 196 | Biometrics | 2 | 13 | 1243 | 1768 |
| 196 | media | 1 | 13 | 75 | 79 |
| 196 | Australia | 1 | 13 | 3173 | 3379 |
| 205 | Materials Engineering | 1 | 12 | 1380 | 1498 |
| 205 | Analytical Chemistry | 1 | 12 | 5766 | 6537 |
| 205 | Surveying | 1 | 12 | 383 | 322 |
| 205 | Magnetic Materials | 1 | 12 | 2178 | 2339 |
| 205 | United States | 1 | 12 | 8349 | 8537 |
| 205 | Soviet Union | 1 | 12 | 1399 | 1137 |
| 211 | Database Management | 2 | 11 | 987 | 1564 |
| 211 | Europa | 2 | 11 | 661 | 1078 |
| 211 | Fuzzy systems | 2 | 11 | 2053 | 2670 |
| 214 | Bibliometrics | 1 | 10 | 272 | 470 |
| 214 | Documentation | 1 | 10 | 595 | 658 |
| 214 | China | 1 | 10 | 4386 | 5128 |
| 214 | Spain | 2 | 10 | 959 | 963 |
| 218 | Public Health | 2 | 9 | 6949 | 10122 |
| 218 | Applied Mathematics | 1 | 9 | 1756 | 1434 |
| 218 | Optoelectronics | 1 | 9 | 1040 | 1086 |
| 218 | radiative transfer | 1 | 9 | 891 | 1061 |
| 218 | Radiation | 1 | 9 | 3297 | 3796 |
| 218 | Randomized Controlled Trials | 1 | 9 | 1987 | 2570 |
| 218 | Spectrum analysis | 1 | 9 | 5279 | 6117 |
| 218 | Demographic research | 1 | 9 | 242 | 391 |
| 218 | mathematical analysis | 1 | 9 | 3066 | 2992 |
| 227 | Electronics | 3 | 8 | 3679 | 5570 |
| 227 | Polymers | 1 | 8 | 5557 | 6433 |
| 227 | Fluid Dynamics | 2 | 8 | 1405 | 2184 |
| 227 | Flexible manufacturing systems | 1 | 8 | 755 | 1166 |
| 227 | Geopolitics | 3 | 8 | 262 | 655 |
| 227 | Feminist criticism | 3 | 8 | 102 | 332 |
| 227 | Soft Condensed Matter | 1 | 8 | 1643 | 2090 |
| 227 | Social policy | 1 | 8 | 1710 | 2026 |
| 227 | Visual Perception | 1 | 8 | 2573 | 3309 |
| 227 | Biomass | 1 | 8 | 1123 | 1856 |
| 227 | Memory | 1 | 8 | 2719 | 3594 |
| 227 | biopolymers | 1 | 8 | 1835 | 2358 |
| 227 | Attention | 1 | 8 | 2666 | 3524 |
| 227 | Perception | 1 | 8 | 2771 | 3551 |
| 241 | Psychology | 1 | 7 | 7024 | 8355 |
| 241 | Psychometrics | 1 | 7 | 677 | 883 |
| 241 | Total Quality Management | 1 | 7 | 1072 | 1470 |
| 241 | Expert Systems | 1 | 7 | 484 | 733 |
| 241 | particles | 1 | 7 | 1724 | 2295 |
| 241 | Granular materials | 1 | 7 | 1049 | 1610 |
| 241 | Classification | 1 | 7 | 554 | 649 |
| 248 | Humanities | 1 | 6 | 3256 | 3360 |
| 248 | Information Theory | 1 | 6 | 2090 | 2520 |
| 248 | Fluid Mechanics | 1 | 6 | 2515 | 3129 |
| 248 | Engineering Mathematics | 1 | 6 | 3612 | 4022 |
| 248 | Combustion | 1 | 6 | 1844 | 2387 |
| 248 | Computational Intelligence | 1 | 6 | 1933 | 2367 |
| 248 | Corporate governance | 1 | 6 | 1035 | 1526 |
| 248 | India | 1 | 6 | 2793 | 2976 |
| 256 | Neurology | 1 | 5 | 7104 | 8741 |
| 256 | Data Mining | 1 | 5 | 2826 | 4050 |
| 256 | Sovereignty | 1 | 5 | 245 | 410 |
| 256 | Nonlinear Dynamics | 2 | 5 | 2347 | 3508 |
| 256 | Access to Information | 1 | 5 | 377 | 811 |
| 256 | Drying | 1 | 5 | 684 | 1066 |
| 256 | big data | 1 | 5 | 1172 | 1686 |
| 256 | Information management | 1 | 5 | 197 | 414 |
| 256 | data protection | 1 | 5 | 1068 | 1419 |
| 256 | Information dissemination | 1 | 5 | 377 | 811 |
| 266 | Coastal Engineering | 1 | 4 | 285 | 435 |
| 266 | Computer Vision | 1 | 4 | 1792 | 2534 |
| 266 | Hydraulic Engineering | 1 | 4 | 1752 | 2237 |
| 266 | Algorithms | 1 | 4 | 1214 | 1579 |
| 266 | Mobile Commerce | 1 | 4 | 730 | 932 |
| 266 | Harbors | 1 | 4 | 385 | 556 |
| 272 | Mechanical Engineering | 1 | 3 | 3585 | 4409 |
| 272 | Nuclear Engineering | 2 | 3 | 1967 | 3068 |
| 272 | Bioengineering | 1 | 3 | 6148 | 8053 |
| 272 | Aerospace Engineering | 1 | 3 | 810 | 1099 |
| 272 | Pharmacognosy | 1 | 3 | 2831 | 3983 |
| 272 | Graph Theory | 1 | 3 | 1246 | 1416 |
| 272 | Environmental Policy | 2 | 3 | 3855 | 6773 |
| 272 | Discrete Mathematics | 1 | 3 | 639 | 719 |
| 272 | Medicinal plants | 1 | 3 | 2361 | 3364 |
| 272 | graph | 1 | 3 | 639 | 719 |
| 272 | Iron | 1 | 3 | 589 | 887 |
| 272 | Digital Television | 2 | 3 | 30 | 87 |
| 272 | Combinatorial analysis | 1 | 3 | 1537 | 1704 |
| 285 | Epidemiology | 1 | 2 | 5781 | 8043 |
| 285 | Political Geography | 1 | 2 | 474 | 792 |
| 285 | Digital electronics | 1 | 2 | 614 | 913 |
| 285 | Nuclear Fusion | 1 | 2 | 891 | 1244 |
| 285 | Technology | 1 | 2 | 6216 | 8130 |
| 285 | European integration | 1 | 2 | 383 | 602 |
| 285 | fusion reactors | 1 | 2 | 733 | 1054 |
| 285 | European Economic Community | 1 | 2 | 371 | 596 |
| 293 | Internet of Things | 1 | 1 | 1647 | 2328 |
| 293 | Telecommunications | 1 | 1 | 1450 | 2137 |
| 293 | Virtual reality | 1 | 1 | 786 | 1345 |
| 293 | Social Security | 1 | 1 | 131 | 284 |
| 293 | energy conservation | 1 | 1 | 3137 | 4601 |
| 293 | Globalization | 1 | 1 | 1083 | 1888 |
| 293 | Augmented reality | 1 | 1 | 7 | 33 |
| 293 | Broadcasting | 1 | 1 | 345 | 653 |
| 293 | Dementia | 1 | 1 | 2232 | 2519 |
| 293 | internet | 1 | 1 | 2415 | 3534 |
| 293 | Alzheimer's disease | 1 | 1 | 2308 | 2662 |
| 304 | Law | 1 | 0 | 2357 | 3022 |
| 304 | Constitutional Law | 1 | 0 | 379 | 498 |
| 304 | Film | 1 | 0 | 187 | 310 |
| 304 | Gender Studies | 1 | 0 | 835 | 1523 |
| 304 | Queer Studies | 1 | 0 | 520 | 1029 |
| 304 | Thermodynamics | 1 | 0 | 1964 | 2815 |
| 304 | Human Rights | 1 | 0 | 1040 | 1766 |
| 304 | ethnicity | 1 | 0 | 1273 | 1987 |
| 304 | Nationalism | 1 | 0 | 613 | 1036 |
| 304 | Democracy | 1 | 0 | 611 | 876 |
| 304 | Green Technology | 1 | 0 | 903 | 1778 |
| 304 | Computational Fluid Dynamics | 1 | 0 | 1111 | 1804 |
| 304 | Solitons | 1 | 0 | 1745 | 2565 |
| 304 | Fractals | 1 | 0 | 1979 | 2820 |
| 304 | Chaos | 1 | 0 | 1745 | 2565 |
| 304 | rule of law | 1 | 0 | 92 | 198 |
| 304 | homosexuality | 1 | 0 | 692 | 1304 |
