| 1 | Physics | 2,347 | 238.8K | 181 | 125 |
| 2 | Nuclear Physics | 2,650 | 158.3K | 53 | 24 |
| 3 | Chemistry | 1,025 | 122.3K | 421 | 173 |
| 4 | Biology | 554 | 92.8K | 634 | 320 |
| 5 | Quantum Gravity | 1,492 | 92.6K | 18 | 12 |
| 6 | Astrophysics | 750 | 88.8K | 225 | 135 |
| 7 | Nanotechnology | 327 | 70.4K | 360 | 74 |
| 8 | Science | 516 | 67.7K | 671 | 444 |
| 9 | Spectrum analysis | 577 | 62.7K | 166 | 86 |
| 10 | Materials | 404 | 48.5K | 472 | 162 |
| 11 | Natural history | 138 | 36.9K | 462 | 404 |
| 12 | Nanostructures | 41 | 32.8K | 406 | 9 |
| 13 | Materials Science | 185 | 31.7K | 538 | 128 |
| 14 | Astronomy | 486 | 30.7K | 312 | 294 |
| 15 | Catalysis | 313 | 29.4K | 252 | 94 |
| 16 | Molecular Biology | 210 | 26.9K | 1197 | 557 |
| 17 | Renewable Energy Sources | 72 | 26.3K | 262 | 22 |
| 18 | Biotechnology | 161 | 24.6K | 768 | 242 |
| 19 | miniaturization | 157 | 24.5K | 97 | 42 |
| 20 | Microelectronics | 159 | 24.4K | 108 | 33 |
| 21 | Bioengineering | 155 | 24.4K | 408 | 144 |
| 22 | energy development | 41 | 20.5K | 46 | 5 |
| 23 | Condensed Matter | 472 | 17.8K | 269 | 255 |
| 24 | Solid State Physics | 457 | 17.7K | 300 | 240 |
| 25 | Chemical Engineering | 84 | 16.7K | 1005 | 227 |
| 26 | Energy Conversion | 127 | 16.5K | 66 | 40 |
| 27 | Statistics | 18 | 15.8K | 1347 | 72 |
| 28 | Photonics | 77 | 12.8K | 215 | 49 |
| 29 | Light | 47 | 11.2K | 118 | 26 |
| 30 | Physical Chemistry | 82 | 11.0K | 318 | 76 |
| 31 | Environmental Chemistry | 56 | 10.1K | 283 | 91 |
| 32 | Organic Chemistry | 36 | 9.3K | 1186 | 131 |
| 33 | Bioorganic chemistry | 34 | 9.3K | 944 | 95 |
| 34 | nanoscience | 74 | 8.3K | 512 | 265 |
| 35 | fuel cells | 95 | 8.2K | 87 | 74 |
| 36 | Mathematical Physics | 43 | 7.7K | 885 | 173 |
| 37 | Nanostructured Materials | 150 | 7.4K | 334 | 243 |
| 38 | Optics | 205 | 6.5K | 496 | 323 |
| 39 | Energy Storage | 78 | 6.5K | 82 | 27 |
| 40 | Energy Harvesting | 47 | 5.8K | 36 | 15 |
| 41 | biocatalysis | 18 | 5.7K | 17 | 12 |
| 41 | Homogeneous catalysis | 18 | 5.7K | 17 | 12 |
| 41 | Heterogeneous catalysis | 18 | 5.7K | 17 | 12 |
| 44 | particle accelerators | 230 | 5.6K | 1 | 1 |
| 45 | particle beams | 214 | 5.5K | 1 | 1 |
| 46 | Biophysics | 119 | 5.3K | 1183 | 875 |
| 47 | Radiation | 171 | 4.9K | 62 | 75 |
| 48 | Synchrotron Radiation | 179 | 4.7K | 10 | 9 |
| 49 | Statistical physics | 139 | 4.1K | 615 | 561 |
| 50 | Cosmology | 168 | 3.7K | 36 | 51 |
| 51 | Electrochemistry | 165 | 3.5K | 476 | 548 |
| 52 | Biocompatible Materials | 69 | 3.2K | 900 | 913 |
| 53 | Optical materials | 57 | 3.2K | 549 | 448 |
| 54 | Biochemistry | 94 | 2.9K | 2571 | 2653 |
| 55 | Pollution | 58 | 2.8K | 1466 | 1454 |
| 56 | Experimental Design | 6 | 2.8K | 192 | 26 |
| 56 | Quality Control | 6 | 2.8K | 1475 | 76 |
| 58 | Geochemistry | 53 | 2.7K | 560 | 462 |
| 59 | Environmental Engineering | 54 | 2.7K | 794 | 696 |
| 60 | Environmental Health | 55 | 2.7K | 1376 | 1216 |
| 61 | sanitation | 50 | 2.6K | 323 | 435 |
| 62 | nuclear astrophysics | 45 | 2.5K | 33 | 29 |
| 63 | Medical Physics | 61 | 2.3K | 354 | 272 |
| 64 | Molecules | 51 | 2.2K | 306 | 191 |
| 64 | Meteorites | 35 | 2.2K | 319 | 305 |
| 66 | Catalysts | 21 | 1.8K | 139 | 42 |
| 67 | Sustainable Development | 9 | 1.7K | 1276 | 321 |
| 67 | sustainability | 9 | 1.7K | 392 | 135 |
| 69 | Environmental Policy | 8 | 1.6K | 2406 | 920 |
| 70 | Economic Development | 7 | 1.6K | 1293 | 354 |
| 71 | Crystallography | 59 | 1.6K | 276 | 171 |
| 72 | Molecular structure | 25 | 1.6K | 852 | 540 |
| 73 | Data Mining | 15 | 1.4K | 596 | 311 |
| 74 | Structural dynamics | 47 | 1.4K | 150 | 212 |
| 74 | Electronics | 30 | 1.4K | 1343 | 694 |
| 76 | Cytology | 19 | 1.4K | 2501 | 2159 |
| 77 | Cell Biology | 12 | 1.4K | 2934 | 2185 |
| 78 | Nuclear Energy | 39 | 1.3K | 272 | 120 |
| 79 | Metallurgy | 32 | 1.2K | 800 | 633 |
| 80 | Nuclear Chemistry | 23 | 1.2K | 383 | 106 |
| 81 | Radiochemistry | 22 | 1.2K | 353 | 89 |
| 82 | Research | 27 | 1.2K | 4577 | 3739 |
| 83 | Superconductors | 45 | 1.1K | 91 | 75 |
| 84 | Quantum theory | 37 | 1.1K | 146 | 114 |
| 85 | Green Chemistry | 7 | 1.1K | 1334 | 671 |
| 86 | Nonlinear Dynamics | 50 | 998 | 599 | 720 |
| 87 | X-ray crystallography | 35 | 974 | 94 | 83 |
| 88 | Virology | 6 | 972 | 2954 | 2025 |
| 89 | Sustainable Engineering | 6 | 941 | 1313 | 497 |
| 90 | Environment | 6 | 913 | 4698 | 2909 |
| 91 | Microbiology | 19 | 885 | 3829 | 3578 |
| 92 | Medicine | 24 | 870 | 5991 | 5730 |
| 93 | Computational Biology | 12 | 856 | 1796 | 1122 |
| 94 | Polymers | 32 | 852 | 1964 | 1841 |
| 95 | Bacteriology | 20 | 813 | 861 | 988 |
| 96 | Particle Physics | 31 | 809 | 125 | 107 |
| 97 | Earth Sciences | 7 | 799 | 2684 | 1228 |
| 98 | Ecology | 15 | 798 | 3974 | 3582 |
| 99 | Information Retrieval | 1 | 784 | 1010 | 105 |
| 100 | Bioinformatics | 11 | 761 | 1327 | 942 |
| 101 | Magnetic Materials | 18 | 717 | 611 | 461 |
| 102 | Microbial Ecology | 12 | 710 | 1393 | 1346 |
| 103 | Analytical Chemistry | 26 | 658 | 2057 | 2190 |
| 104 | data collection | 14 | 633 | 337 | 437 |
| 105 | United States | 5 | 618 | 5594 | 2124 |
| 106 | Plant cells | 4 | 597 | 1177 | 953 |
| 107 | Mathematics | 13 | 591 | 3995 | 1993 |
| 108 | energy conservation | 9 | 571 | 1195 | 910 |
| 109 | Elementary particles | 9 | 551 | 67 | 89 |
| 110 | polymerization | 20 | 549 | 2059 | 1897 |
| 111 | Engineering | 15 | 525 | 2461 | 1460 |
| 111 | Colloids | 22 | 525 | 1724 | 2132 |
| 113 | Crystallization | 27 | 458 | 78 | 111 |
| 114 | Surface Chemistry | 18 | 454 | 1980 | 2159 |
| 115 | Computational Chemistry | 7 | 423 | 457 | 340 |
| 116 | Nanoparticles | 10 | 421 | 1167 | 995 |
| 117 | Education | 3 | 409 | 4909 | 1385 |
| 118 | Microscopy | 26 | 403 | 440 | 593 |
| 119 | Metals | 8 | 388 | 1709 | 1190 |
| 120 | Electromagnetism | 10 | 386 | 385 | 201 |
| 121 | Botany | 5 | 384 | 3722 | 2615 |
| 122 | Genetics | 3 | 365 | 5114 | 3403 |
| 123 | proteins | 23 | 359 | 860 | 1321 |
| 124 | Cosmochemistry | 11 | 358 | 487 | 543 |
| 125 | Solid State Chemistry | 13 | 356 | 1503 | 1271 |
| 126 | solar cells | 14 | 344 | 332 | 567 |
| 127 | Radiobiology | 8 | 334 | 1498 | 1056 |
| 128 | Aerosols | 3 | 325 | 701 | 280 |
| 129 | Biomedical Engineering | 4 | 322 | 5616 | 3324 |
| 130 | Bioinorganic chemistry | 13 | 316 | 778 | 794 |
| 131 | Combinatorial chemistry | 14 | 315 | 327 | 582 |
| 132 | Geology | 8 | 312 | 2431 | 1843 |
| 133 | Cheminformatics | 2 | 310 | 543 | 281 |
| 134 | protein | 21 | 302 | 456 | 836 |
| 135 | Medical Laboratory Science | 1 | 297 | 4184 | 1488 |
| 136 | aerosol | 2 | 281 | 598 | 196 |
| 137 | Carbon | 3 | 264 | 1604 | 1167 |
| 138 | Geophysics | 18 | 232 | 1993 | 2788 |
| 139 | Water pollution | 5 | 228 | 2550 | 2400 |
| 139 | plant molecular biology | 1 | 228 | 2661 | 1596 |
| 139 | Plants | 1 | 228 | 3690 | 1780 |
| 142 | Hypertension | 1 | 225 | 3111 | 1939 |
| 142 | Cardiovascular system | 1 | 225 | 3011 | 2035 |
| 144 | environmental pollution | 9 | 221 | 3335 | 4050 |
| 145 | Yugoslavia | 1 | 207 | 285 | 10 |
| 146 | Pharmaceutical Chemistry | 6 | 195 | 3669 | 3609 |
| 147 | Solar power plants | 6 | 194 | 122 | 171 |
| 147 | Photovoltaic Cells | 6 | 194 | 122 | 171 |
| 149 | Plant physiology | 4 | 178 | 2154 | 2076 |
| 150 | Space telescopes | 7 | 176 | 109 | 76 |
| 150 | Environmental monitoring | 6 | 176 | 3482 | 3906 |
| 152 | Chemical processes | 1 | 174 | 1299 | 363 |
| 153 | Solar Energy | 9 | 167 | 1077 | 1643 |
| 154 | Psychiatry | 1 | 164 | 7901 | 4302 |
| 154 | Photography | 18 | 164 | 845 | 448 |
| 154 | Mental Disorders | 1 | 164 | 5863 | 3199 |
| 157 | Neurology | 3 | 163 | 6579 | 5466 |
| 157 | Water | 11 | 163 | 1561 | 2737 |
| 159 | Nanophotonics | 5 | 161 | 218 | 289 |
| 160 | Groundwater | 1 | 152 | 1373 | 519 |
| 161 | solar power | 8 | 150 | 496 | 912 |
| 162 | Mineralogy | 4 | 146 | 1408 | 1135 |
| 163 | Technology | 13 | 142 | 2577 | 3618 |
| 164 | calcification | 1 | 141 | 1171 | 645 |
| 165 | Clinical Chemistry | 3 | 140 | 3795 | 3262 |
| 166 | Radiation Protection | 15 | 138 | 233 | 287 |
| 166 | plant communities | 3 | 138 | 1285 | 1273 |
| 168 | Nanochemistry | 5 | 134 | 1056 | 910 |
| 169 | radiation monitoring | 14 | 132 | 207 | 275 |
| 169 | Laser-plasma interactions | 10 | 132 | 28 | 39 |
| 169 | Plasma density | 10 | 132 | 28 | 39 |
| 169 | Radiation dosimetry | 13 | 132 | 170 | 199 |
| 173 | coal | 2 | 124 | 2178 | 1832 |
| 174 | Biochemical Engineering | 6 | 123 | 2907 | 4383 |
| 175 | Atomic spectroscopy | 4 | 122 | 1200 | 997 |
| 176 | Combustion | 12 | 120 | 684 | 1174 |
| 177 | Meteorology | 5 | 119 | 2317 | 2814 |
| 177 | Environmental Management | 2 | 119 | 4065 | 3510 |
| 179 | Soft Condensed Matter | 8 | 113 | 766 | 1119 |
| 179 | biopolymers | 8 | 113 | 853 | 1246 |
| 181 | global environmental change | 2 | 108 | 1289 | 1193 |
| 182 | Geriatrics | 1 | 102 | 5787 | 3208 |
| 182 | Social Psychology | 1 | 102 | 3894 | 2273 |
| 182 | Gerontology | 1 | 102 | 3914 | 1828 |
| 182 | Aging | 1 | 102 | 5476 | 3147 |
| 186 | Petrology | 1 | 99 | 1475 | 1021 |
| 187 | Nuclear Engineering | 10 | 97 | 811 | 897 |
| 188 | Geomagnetism | 6 | 96 | 573 | 690 |
| 189 | Systems Biology | 7 | 94 | 1264 | 1957 |
| 190 | Superconductivity | 8 | 92 | 293 | 407 |
| 191 | System analysis | 3 | 91 | 2980 | 2419 |
| 191 | nucleic acids | 2 | 91 | 2582 | 2620 |
| 193 | Trace elements | 3 | 88 | 294 | 423 |
| 194 | biological monitoring | 3 | 87 | 584 | 662 |
| 195 | Hydrology | 6 | 81 | 2211 | 2782 |
| 196 | Public Policy | 1 | 80 | 3661 | 2299 |
| 196 | Systems Analysis | 1 | 80 | 2233 | 1135 |
| 198 | Multivariate Analysis | 1 | 77 | 931 | 510 |
| 198 | China | 3 | 77 | 3582 | 3241 |
| 198 | Classification | 1 | 77 | 644 | 277 |
| 201 | Radiology | 9 | 74 | 1226 | 1754 |
| 202 | Seismology | 1 | 69 | 1033 | 589 |
| 202 | Biogeochemistry | 2 | 69 | 1581 | 1769 |
| 204 | Proteomics | 1 | 68 | 2327 | 1912 |
| 204 | Proteome | 1 | 68 | 2353 | 2044 |
| 206 | Neurobiology | 1 | 66 | 3294 | 2906 |
| 206 | Molecular Microbiology | 2 | 66 | 1308 | 1681 |
| 206 | Quantum Optics | 2 | 66 | 1283 | 991 |
| 206 | Biomolecules | 1 | 66 | 996 | 874 |
| 206 | Laser Spectroscopy | 2 | 66 | 1217 | 924 |
| 206 | Structure-activity relationship | 1 | 66 | 1012 | 509 |
| 212 | ecosystem | 1 | 65 | 2546 | 2177 |
| 213 | actuators | 6 | 64 | 1883 | 3092 |
| 213 | lasers | 1 | 64 | 3440 | 1877 |
| 213 | transducers | 6 | 64 | 1883 | 3092 |
| 216 | Information Theory | 1 | 62 | 2202 | 1370 |
| 216 | Quantum Communication | 1 | 62 | 413 | 331 |
| 216 | optical devices | 4 | 62 | 457 | 550 |
| 219 | peptides | 2 | 57 | 1420 | 1128 |
| 219 | United Kingdom | 1 | 57 | 3402 | 2636 |
| 221 | Ceramics | 5 | 54 | 1432 | 1882 |
| 221 | Nanoelectronics | 4 | 54 | 887 | 918 |
| 221 | Glass | 5 | 54 | 1090 | 1657 |
| 221 | pottery | 5 | 54 | 1023 | 1628 |
| 221 | Evolution | 2 | 54 | 2883 | 3050 |
| 221 | enzymes | 5 | 54 | 1458 | 2475 |
| 227 | Semiconductors | 3 | 53 | 2437 | 2401 |
| 227 | nuclear power | 10 | 53 | 287 | 434 |
| 229 | Electrical Engineering | 12 | 46 | 2203 | 3214 |
| 229 | Metabolism | 1 | 46 | 5184 | 4958 |
| 229 | Molecular Spectroscopy | 2 | 46 | 2529 | 2603 |
| 229 | Planets | 4 | 46 | 1635 | 2638 |
| 229 | Bones | 1 | 46 | 1864 | 1725 |
| 234 | X-rays | 1 | 44 | 1522 | 934 |
| 234 | water supply | 3 | 44 | 1114 | 1658 |
| 234 | Nervous system | 2 | 44 | 3669 | 4342 |
| 237 | Membranes | 2 | 43 | 2492 | 3122 |
| 238 | Drug design | 1 | 42 | 3440 | 2972 |
| 239 | Informatics | 2 | 40 | 1300 | 1483 |
| 240 | Quantum Chemistry | 1 | 39 | 1717 | 1061 |
| 240 | Cement | 1 | 39 | 1130 | 1198 |
| 242 | Planetary Science | 2 | 36 | 803 | 796 |
| 243 | Toxicology | 3 | 35 | 5899 | 7770 |
| 244 | Energy Policy | 1 | 34 | 4627 | 4799 |
| 244 | Biodiversity | 3 | 34 | 2799 | 3826 |
| 246 | Pediatric Neurology | 1 | 33 | 2079 | 2540 |
| 246 | Greenhouse gases | 1 | 33 | 735 | 838 |
| 248 | Magnetic Resonance Imaging | 1 | 32 | 1239 | 1079 |
| 248 | Molecular Imaging | 1 | 32 | 1378 | 1466 |
| 250 | soil microbiology | 3 | 31 | 1742 | 3274 |
| 251 | Environmental Microbiology | 1 | 30 | 2819 | 3222 |
| 251 | pollutants | 2 | 30 | 2754 | 3763 |
| 251 | Environmental pollutants | 2 | 30 | 3273 | 4306 |
| 254 | Paleontology | 2 | 29 | 1808 | 1945 |
| 255 | Optical Communications | 2 | 28 | 916 | 963 |
| 255 | Marine Geology | 2 | 28 | 835 | 1064 |
| 255 | Petroleum Geology | 2 | 28 | 722 | 988 |
| 258 | Industrial Engineering | 2 | 27 | 2706 | 3254 |
| 258 | Agricultural Chemistry | 1 | 27 | 4106 | 4086 |
| 258 | environmental protection | 2 | 27 | 5153 | 6449 |
| 258 | viruses | 1 | 27 | 2830 | 3383 |
| 262 | Agricultural Ecology | 1 | 26 | 2280 | 2597 |
| 263 | Mechanical Engineering | 2 | 25 | 3511 | 3340 |
| 263 | Paleoclimatology | 1 | 25 | 1810 | 1990 |
| 263 | Paleoecology | 1 | 25 | 1754 | 1889 |
| 263 | Quantum electronics | 3 | 25 | 1295 | 1413 |
| 263 | Paleobiology | 1 | 25 | 739 | 546 |
| 263 | Diagnostic Imaging | 1 | 25 | 4190 | 3766 |
| 263 | Organometallic chemistry | 1 | 25 | 3301 | 2965 |
| 263 | Paleobiogeography | 1 | 25 | 184 | 131 |
| 263 | Fluorescence spectroscopy | 1 | 25 | 630 | 646 |
| 263 | Visual Perception | 37 | 25 | 503 | 3635 |
| 263 | machinery | 1 | 25 | 1543 | 1364 |
| 263 | Memory | 37 | 25 | 570 | 3971 |
| 263 | Attention | 37 | 25 | 520 | 3803 |
| 263 | Perception | 37 | 25 | 594 | 3927 |
| 277 | Critical Care | 1 | 24 | 3275 | 3729 |
| 277 | Critical Care Medicine | 1 | 24 | 2937 | 3474 |
| 277 | Nuclear Fusion | 2 | 24 | 873 | 954 |
| 277 | Number Theory | 1 | 24 | 1532 | 934 |
| 281 | Neurochemistry | 2 | 22 | 3334 | 4594 |
| 281 | Computer Architecture | 1 | 22 | 951 | 787 |
| 281 | Electrochemical Analysis | 1 | 22 | 2610 | 2716 |
| 281 | Radioisotopes | 3 | 22 | 1589 | 2109 |
| 285 | Quantum Computing | 1 | 21 | 350 | 426 |
| 285 | Brachytherapy | 3 | 21 | 378 | 451 |
| 285 | visualization | 4 | 21 | 1828 | 1977 |
| 288 | Photochemistry | 2 | 20 | 2633 | 3611 |
| 288 | Thin Films | 1 | 20 | 1254 | 1108 |
| 290 | Environmental Science | 1 | 19 | 53 | 93 |
| 290 | Environmental Toxicology | 1 | 19 | 4532 | 5361 |
| 290 | environmental exposure | 1 | 19 | 3904 | 4439 |
| 293 | Cellulose | 1 | 18 | 1294 | 1607 |
| 294 | Soil biology | 2 | 17 | 1271 | 2100 |
| 295 | Nuclear Medicine | 1 | 16 | 2107 | 2193 |
| 295 | Cytoskeleton | 1 | 16 | 589 | 833 |
| 295 | plasma | 1 | 16 | 140 | 152 |
| 298 | Dynamics | 2 | 15 | 2507 | 2996 |
| 298 | Atmospheric Physics | 1 | 15 | 2782 | 3206 |
| 298 | Photobiology | 1 | 15 | 2690 | 3128 |
| 298 | RNA | 2 | 15 | 774 | 1513 |
| 298 | Semiconductor industry | 1 | 15 | 1278 | 1359 |
| 298 | genome | 3 | 15 | 2124 | 4030 |
| 304 | Plant diseases | 1 | 14 | 3322 | 3581 |
| 305 | Statistical Mechanics | 2 | 13 | 1709 | 1910 |
| 305 | Telecommunication | 1 | 13 | 4175 | 3878 |
| 307 | Biogeochemical cycles | 1 | 12 | 838 | 1279 |
| 307 | Raman spectroscopy | 1 | 12 | 1649 | 2125 |
| 307 | Infrared spectroscopy | 1 | 12 | 814 | 1125 |
| 310 | Systems Theory | 2 | 11 | 970 | 1399 |
| 310 | Biological Systems | 2 | 11 | 1167 | 2091 |
| 310 | Social Systems | 2 | 11 | 332 | 528 |
| 310 | Computational Complexity | 3 | 11 | 1239 | 2125 |
| 314 | Numerical Analysis | 3 | 9 | 2667 | 4136 |
| 314 | cosmic rays | 7 | 9 | 351 | 1237 |
| 314 | Chemical analysis | 1 | 9 | 2295 | 3064 |
| 317 | Japan | 1 | 8 | 4079 | 4514 |
| 317 | Hazardous waste | 1 | 8 | 1861 | 2840 |
| 319 | Petroleum Engineering | 1 | 7 | 1434 | 1918 |
| 319 | Engineering Mathematics | 1 | 7 | 4448 | 4830 |
| 319 | electric vehicles | 1 | 7 | 447 | 640 |
| 319 | Molecular evolution | 1 | 7 | 3344 | 4564 |
| 319 | Convergence | 1 | 7 | 132 | 343 |
| 324 | Computer Graphics | 1 | 6 | 2997 | 3830 |
| 324 | Politics | 9 | 6 | 374 | 1145 |
| 324 | X-ray spectroscopy | 1 | 6 | 527 | 788 |
| 324 | Magnetic Resonance Spectroscopy | 1 | 6 | 2245 | 2824 |
| 324 | nuclear magnetic resonance spectroscopy | 1 | 6 | 1447 | 1839 |
| 324 | Metallography | 1 | 6 | 1591 | 2180 |
| 324 | Radio waves | 1 | 6 | 656 | 809 |
| 324 | government | 9 | 6 | 436 | 1440 |
| 324 | NMR | 1 | 6 | 1097 | 1450 |
| 324 | magnetic resonance | 1 | 6 | 1152 | 1502 |
| 334 | Medical Oncology | 2 | 5 | 3093 | 4703 |
| 334 | Neurotoxicology | 1 | 5 | 1254 | 2142 |
| 334 | Interfaces | 2 | 5 | 484 | 1115 |
| 334 | analysis | 1 | 5 | 594 | 829 |
| 334 | Mechanics | 1 | 5 | 2537 | 3019 |
| 339 | Surveying | 1 | 4 | 399 | 497 |
| 339 | Information Systems | 1 | 4 | 3096 | 4447 |
| 339 | Diffraction | 2 | 4 | 216 | 479 |
| 339 | Wireless Communication Systems | 2 | 4 | 2764 | 4190 |
| 339 | Microwave circuits | 2 | 4 | 192 | 454 |
| 339 | Composite Materials | 1 | 4 | 4315 | 5671 |
| 339 | Ceramic materials | 1 | 4 | 2455 | 3347 |
| 339 | cell physiology | 1 | 4 | 2856 | 4156 |
| 339 | Radio frequency | 2 | 4 | 509 | 1078 |
| 348 | Bioinstrumentation | 1 | 3 | 136 | 214 |
| 348 | Fluid Mechanics | 1 | 3 | 3041 | 4085 |
| 348 | Automation | 1 | 3 | 3235 | 4328 |
| 348 | Soil Science | 1 | 3 | 3275 | 4473 |
| 348 | Plasma turbulence | 1 | 3 | 136 | 214 |
| 348 | Integrated Circuits | 1 | 3 | 1511 | 1858 |
| 348 | radiative transfer | 1 | 3 | 1130 | 1615 |
| 348 | Freezing | 2 | 3 | 546 | 1079 |
| 348 | Electrons | 1 | 3 | 261 | 413 |
| 357 | Information Technology | 1 | 2 | 4887 | 6569 |
| 357 | Chromatography | 1 | 2 | 3141 | 4587 |
| 357 | Organometallic compounds | 1 | 2 | 2122 | 2930 |
| 357 | Library Science | 1 | 2 | 2703 | 3227 |
| 357 | libraries | 1 | 2 | 1624 | 1752 |
| 357 | Chemical structure | 1 | 2 | 1190 | 1739 |
| 357 | Chromatographic analysis | 1 | 2 | 3573 | 5030 |
| 357 | information | 1 | 2 | 140 | 235 |
| 357 | Information Science | 1 | 2 | 4777 | 6647 |
| 366 | Hematology | 1 | 1 | 5572 | 6574 |
| 366 | Hemostasis | 1 | 1 | 1650 | 2513 |
| 366 | Computer-Aided Design | 1 | 1 | 2444 | 3623 |
| 366 | Thrombosis | 1 | 1 | 2183 | 3249 |
| 366 | Powder Metallurgy | 1 | 1 | 808 | 1236 |
| 366 | disarmament | 1 | 1 | 400 | 648 |
| 366 | Finite Element Method | 1 | 1 | 622 | 1101 |
| 366 | biological factors | 1 | 1 | 3597 | 5350 |
| 366 | Chemical industry | 1 | 1 | 2602 | 3711 |
| 366 | strategy | 1 | 1 | 484 | 728 |
| 366 | India | 1 | 1 | 3750 | 4855 |
| 366 | Europe | 1 | 1 | 6525 | 8684 |
| 378 | Soil Mechanics | 1 | 0 | 1954 | 2840 |
| 378 | air quality management | 1 | 0 | 1240 | 2346 |
| 378 | Health Physics | 1 | 0 | 549 | 1043 |
| 378 | Democracy | 1 | 0 | 735 | 1069 |
| 378 | Cold War | 1 | 0 | 330 | 420 |
| 378 | Multiphase Flow | 1 | 0 | 730 | 1263 |
| 378 | Crystal growth | 1 | 0 | 1816 | 2666 |
