| 1 | Materials | 1,257 | 41.1K | 110 | 179 |
| 2 | Chemical Engineering | 915 | 28.3K | 65 | 127 |
| 3 | Chemistry | 762 | 22.8K | 516 | 687 |
| 4 | Catalysis | 670 | 21.7K | 77 | 141 |
| 5 | Biochemical Engineering | 425 | 17.1K | 67 | 168 |
| 6 | Materials Science | 499 | 15.9K | 159 | 240 |
| 7 | Nanotechnology | 388 | 13.9K | 276 | 373 |
| 8 | coal | 461 | 13.8K | 9 | 14 |
| 9 | Biocompatible Materials | 267 | 11.3K | 233 | 308 |
| 10 | Optical materials | 255 | 10.2K | 84 | 121 |
| 11 | Electrochemistry | 324 | 9.6K | 239 | 197 |
| 12 | Physics | 524 | 8.9K | 676 | 1233 |
| 13 | Surface Chemistry | 367 | 8.8K | 141 | 236 |
| 14 | Colloids | 316 | 8.2K | 175 | 285 |
| 15 | Nanostructured Materials | 226 | 7.8K | 168 | 223 |
| 16 | Analytical Chemistry | 216 | 7.0K | 363 | 371 |
| 17 | Energy Policy | 239 | 6.7K | 51 | 142 |
| 18 | Building Materials | 181 | 6.3K | 61 | 104 |
| 19 | nanoscience | 132 | 6.1K | 257 | 301 |
| 20 | China | 335 | 5.6K | 73 | 86 |
| 21 | Optics | 280 | 5.5K | 323 | 350 |
| 22 | Metals | 170 | 5.5K | 130 | 161 |
| 23 | Composite Materials | 150 | 5.4K | 228 | 271 |
| 24 | Magnetic Materials | 135 | 5.0K | 64 | 50 |
| 25 | Rock Mechanics | 113 | 4.6K | 51 | 59 |
| 26 | Environment | 118 | 4.5K | 628 | 862 |
| 27 | Photonics | 160 | 4.5K | 132 | 217 |
| 28 | Renewable Energy Sources | 83 | 4.3K | 243 | 357 |
| 29 | Metallurgy | 183 | 4.2K | 134 | 212 |
| 30 | Pollution | 122 | 4.0K | 687 | 922 |
| 31 | Science | 165 | 3.8K | 1140 | 1767 |
| 32 | Polymers | 218 | 3.8K | 450 | 656 |
| 33 | actuators | 92 | 3.7K | 168 | 162 |
| 33 | transducers | 92 | 3.7K | 168 | 162 |
| 35 | fuel cells | 40 | 3.7K | 218 | 151 |
| 36 | Engineering Geology | 105 | 3.6K | 81 | 87 |
| 37 | Biology | 77 | 3.6K | 1645 | 1730 |
| 38 | Carbon | 63 | 3.4K | 113 | 140 |
| 39 | Biomass Energy | 62 | 3.4K | 316 | 328 |
| 40 | Soil Mechanics | 80 | 3.3K | 105 | 96 |
| 41 | Green Chemistry | 94 | 3.2K | 129 | 232 |
| 42 | energy conservation | 92 | 3.1K | 150 | 289 |
| 43 | Biotechnology | 115 | 2.9K | 798 | 1127 |
| 44 | Environmental Health | 98 | 2.7K | 732 | 933 |
| 45 | pigments | 84 | 2.7K | 23 | 11 |
| 46 | Ecology | 110 | 2.7K | 941 | 1353 |
| 47 | Mathematics | 292 | 2.7K | 604 | 753 |
| 48 | Industrial Engineering | 102 | 2.6K | 120 | 174 |
| 49 | Biomedical Engineering | 167 | 2.6K | 463 | 817 |
| 50 | Zeolites | 97 | 2.6K | 17 | 41 |
| 51 | Sustainable Engineering | 65 | 2.5K | 141 | 184 |
| 52 | environmental pollution | 88 | 2.5K | 641 | 868 |
| 53 | lasers | 98 | 2.4K | 202 | 168 |
| 54 | Structural Engineering | 87 | 2.3K | 184 | 202 |
| 55 | Mechanical Engineering | 143 | 2.2K | 142 | 181 |
| 56 | polymerization | 151 | 2.2K | 471 | 724 |
| 57 | Luminescence | 71 | 2.2K | 54 | 23 |
| 58 | Bioengineering | 82 | 2.1K | 641 | 946 |
| 59 | Fracture mechanics | 99 | 2.1K | 108 | 137 |
| 60 | Technology | 139 | 2.1K | 333 | 561 |
| 61 | Biochemistry | 114 | 2.1K | 1580 | 1991 |
| 62 | Energy Conversion | 42 | 2.1K | 200 | 329 |
| 63 | Environmental Management | 93 | 2.0K | 243 | 587 |
| 64 | Mining Engineering | 39 | 1.9K | 62 | 49 |
| 65 | Nanoparticles | 77 | 1.9K | 150 | 254 |
| 66 | Chemical industry | 122 | 1.9K | 61 | 45 |
| 67 | Solid State Physics | 114 | 1.9K | 707 | 829 |
| 68 | Manufacturing Processes | 97 | 1.8K | 219 | 336 |
| 68 | environmental protection | 77 | 1.8K | 401 | 653 |
| 70 | impact | 31 | 1.8K | 35 | 29 |
| 71 | Medicine | 106 | 1.7K | 1538 | 2084 |
| 72 | Membranes | 40 | 1.7K | 397 | 430 |
| 73 | Environmental monitoring | 65 | 1.7K | 587 | 912 |
| 74 | Systems Engineering | 75 | 1.7K | 181 | 255 |
| 75 | Environmental Engineering | 62 | 1.6K | 593 | 809 |
| 76 | Energy Storage | 49 | 1.6K | 139 | 194 |
| 77 | Solid State Chemistry | 83 | 1.6K | 336 | 394 |
| 78 | Metallography | 56 | 1.6K | 50 | 45 |
| 79 | Research | 113 | 1.5K | 1276 | 1838 |
| 80 | natural gas | 40 | 1.5K | 35 | 31 |
| 81 | Measurement | 69 | 1.5K | 76 | 99 |
| 82 | Heat Exchangers | 54 | 1.4K | 116 | 203 |
| 83 | Automation | 38 | 1.2K | 544 | 626 |
| 84 | Environmental Policy | 55 | 1.2K | 552 | 937 |
| 85 | Electronics | 59 | 1.2K | 706 | 741 |
| 86 | Molecular Biology | 56 | 1.2K | 1823 | 2239 |
| 87 | Organic Chemistry | 45 | 1.1K | 860 | 855 |
| 88 | Ocean Engineering | 51 | 1.1K | 326 | 405 |
| 89 | Earthquake Engineering | 47 | 1.1K | 286 | 345 |
| 90 | Artificial Intelligence | 61 | 1.1K | 708 | 1000 |
| 90 | Statistical physics | 75 | 1.1K | 744 | 955 |
| 92 | Plastics | 47 | 1.1K | 223 | 250 |
| 93 | Electrical Engineering | 52 | 1.1K | 714 | 515 |
| 93 | particles | 58 | 1.1K | 44 | 78 |
| 95 | Metallic Glasses | 46 | 1.1K | 30 | 43 |
| 96 | Detectors | 85 | 1.1K | 71 | 198 |
| 97 | sanitation | 16 | 1.1K | 555 | 585 |
| 98 | Quantum electronics | 39 | 1.1K | 321 | 261 |
| 99 | Engineering | 86 | 1.0K | 531 | 862 |
| 100 | Geophysics | 75 | 1.0K | 655 | 1002 |
| 101 | Tribology | 65 | 1.0K | 105 | 181 |
| 102 | Fiber Optics | 72 | 999 | 85 | 168 |
| 103 | Engineering Mathematics | 98 | 994 | 110 | 274 |
| 103 | vibration | 30 | 994 | 239 | 236 |
| 105 | Electrochemical Analysis | 39 | 973 | 291 | 314 |
| 106 | biocatalysis | 2 | 971 | 220 | 123 |
| 106 | Homogeneous catalysis | 2 | 971 | 220 | 123 |
| 106 | Heterogeneous catalysis | 2 | 971 | 220 | 123 |
| 109 | Structural dynamics | 21 | 933 | 320 | 303 |
| 110 | Spectrum analysis | 38 | 922 | 1299 | 1346 |
| 111 | Water | 33 | 918 | 653 | 921 |
| 112 | Catalysts | 51 | 898 | 30 | 87 |
| 113 | Earth Sciences | 76 | 896 | 491 | 925 |
| 114 | Numerical Analysis | 58 | 857 | 352 | 459 |
| 115 | Production Engineering | 73 | 848 | 218 | 400 |
| 116 | miniaturization | 43 | 824 | 338 | 685 |
| 117 | carbon monoxide | 13 | 808 | 54 | 35 |
| 118 | Environmental Chemistry | 12 | 792 | 912 | 764 |
| 119 | Iron | 53 | 770 | 30 | 39 |
| 120 | Nuclear Physics | 59 | 764 | 1210 | 1498 |
| 121 | Water pollution | 30 | 754 | 802 | 1028 |
| 122 | Entropy | 38 | 752 | 78 | 64 |
| 123 | clay | 16 | 734 | 201 | 181 |
| 124 | Hydrocarbons | 25 | 730 | 14 | 4 |
| 125 | Bioorganic chemistry | 17 | 717 | 1190 | 979 |
| 126 | energy resources | 19 | 715 | 406 | 641 |
| 127 | Biosensors | 20 | 711 | 381 | 576 |
| 128 | Porous materials | 43 | 708 | 39 | 66 |
| 129 | Geology | 55 | 703 | 724 | 964 |
| 130 | Signal Processing | 52 | 694 | 543 | 912 |
| 131 | Nanostructures | 55 | 664 | 201 | 720 |
| 132 | Information Science | 19 | 658 | 909 | 847 |
| 133 | Solar Energy | 21 | 657 | 498 | 606 |
| 134 | Granular materials | 31 | 647 | 49 | 81 |
| 135 | Nanochemistry | 39 | 638 | 98 | 179 |
| 136 | plasticity | 8 | 636 | 173 | 155 |
| 137 | Microbiology | 32 | 632 | 1840 | 2369 |
| 138 | Geomorphology | 19 | 626 | 499 | 558 |
| 139 | Physical Chemistry | 8 | 603 | 1347 | 823 |
| 140 | mass transfer | 29 | 602 | 498 | 655 |
| 141 | natural disasters | 22 | 591 | 262 | 358 |
| 142 | Multimedia Systems | 44 | 585 | 234 | 406 |
| 143 | Organometallic chemistry | 43 | 583 | 352 | 514 |
| 144 | Optical Communications | 40 | 579 | 79 | 122 |
| 145 | Molecular structure | 37 | 571 | 528 | 770 |
| 146 | Molecular Spectroscopy | 25 | 563 | 501 | 508 |
| 147 | Surface-Active Agents | 25 | 538 | 183 | 372 |
| 147 | Surface properties | 25 | 538 | 206 | 420 |
| 149 | Petroleum Engineering | 22 | 535 | 168 | 172 |
| 150 | Environmental Geology | 29 | 534 | 311 | 542 |
| 151 | concrete | 9 | 529 | 500 | 483 |
| 152 | Tunneling | 15 | 524 | 103 | 134 |
| 152 | underground construction | 15 | 524 | 103 | 134 |
| 154 | Image Processing | 42 | 508 | 476 | 929 |
| 155 | hazard mitigation | 17 | 506 | 191 | 234 |
| 156 | Mineralogy | 40 | 503 | 323 | 511 |
| 157 | Condensed Matter | 26 | 500 | 1209 | 1291 |
| 158 | Biophysics | 38 | 498 | 1579 | 2133 |
| 159 | Semiconductors | 42 | 496 | 398 | 590 |
| 160 | Mathematical Physics | 40 | 477 | 830 | 1002 |
| 161 | Microelectronics | 20 | 471 | 639 | 802 |
| 162 | Power Electronics | 23 | 466 | 317 | 526 |
| 162 | Control Theory | 31 | 466 | 487 | 618 |
| 164 | Light | 2 | 454 | 995 | 595 |
| 165 | health planning | 37 | 453 | 425 | 645 |
| 166 | Recycling | 9 | 445 | 253 | 363 |
| 167 | Astronomy | 38 | 443 | 885 | 1297 |
| 168 | Neural circuitry | 29 | 442 | 482 | 881 |
| 169 | Ceramics | 17 | 438 | 505 | 451 |
| 170 | Calorimetry | 26 | 433 | 207 | 265 |
| 170 | Thermal analysis | 26 | 433 | 207 | 265 |
| 172 | Solitons | 26 | 430 | 198 | 350 |
| 172 | Fractals | 26 | 430 | 200 | 351 |
| 172 | Chaos | 26 | 430 | 198 | 350 |
| 175 | Geotechnical Engineering | 4 | 422 | 386 | 184 |
| 176 | Combustion | 34 | 421 | 281 | 502 |
| 176 | Bioelectronics | 12 | 421 | 466 | 711 |
| 178 | Soil Science | 16 | 417 | 730 | 850 |
| 179 | Ceramic materials | 28 | 402 | 275 | 475 |
| 179 | System analysis | 23 | 402 | 772 | 961 |
| 181 | solar power | 10 | 387 | 346 | 401 |
| 181 | solar cells | 10 | 387 | 397 | 433 |
| 183 | Hazardous waste | 20 | 376 | 189 | 537 |
| 184 | Nonlinear Dynamics | 12 | 373 | 1043 | 904 |
| 185 | Asia | 16 | 371 | 1035 | 812 |
| 186 | Mechatronics | 23 | 369 | 186 | 338 |
| 187 | Economic Development | 2 | 365 | 1775 | 796 |
| 187 | Developing countries | 5 | 365 | 1742 | 926 |
| 189 | Dynamics | 34 | 362 | 292 | 485 |
| 190 | Differential Equations | 7 | 352 | 710 | 366 |
| 190 | Waste management | 19 | 352 | 394 | 457 |
| 192 | Hydrology | 27 | 340 | 692 | 1091 |
| 193 | radioactive waste | 16 | 336 | 188 | 548 |
| 193 | industrial waste | 16 | 336 | 202 | 551 |
| 195 | Economic History | 3 | 335 | 2998 | 1224 |
| 196 | Civil Engineering | 29 | 333 | 346 | 347 |
| 197 | enzymes | 4 | 331 | 1176 | 724 |
| 198 | Cellulose | 7 | 330 | 318 | 253 |
| 199 | Environmental pollutants | 10 | 324 | 1156 | 1221 |
| 200 | pollutants | 9 | 322 | 992 | 1039 |
| 201 | mathematical analysis | 44 | 319 | 688 | 948 |
| 202 | Microstructure | 20 | 317 | 164 | 175 |
| 203 | Hydrogeology | 11 | 313 | 247 | 237 |
| 204 | Smart Materials | 19 | 311 | 247 | 379 |
| 205 | Toxicology | 7 | 309 | 2688 | 2340 |
| 205 | Medical Laboratory Science | 9 | 309 | 1057 | 1140 |
| 207 | environmental indicators | 13 | 307 | 420 | 689 |
| 208 | Development | 1 | 306 | 1230 | 439 |
| 208 | Economic Assistance | 1 | 306 | 1121 | 407 |
| 208 | world | 1 | 306 | 1116 | 472 |
| 211 | environmental exposure | 9 | 305 | 1003 | 1033 |
| 212 | Water quality management | 23 | 303 | 495 | 725 |
| 213 | Materials Engineering | 23 | 289 | 85 | 150 |
| 213 | Geothermal Energy | 5 | 289 | 141 | 73 |
| 215 | Environmental Toxicology | 8 | 287 | 1419 | 1441 |
| 216 | Greenhouse gases | 3 | 285 | 268 | 163 |
| 217 | textile fibers | 22 | 283 | 77 | 81 |
| 218 | Photochemistry | 12 | 282 | 792 | 857 |
| 219 | Photobiology | 11 | 280 | 597 | 665 |
| 220 | Energy Harvesting | 5 | 278 | 311 | 382 |
| 221 | Nanophotonics | 7 | 276 | 163 | 168 |
| 222 | Cement | 5 | 261 | 427 | 473 |
| 223 | Structural design | 19 | 256 | 198 | 391 |
| 224 | machinery | 13 | 255 | 277 | 305 |
| 225 | Soil dynamics | 8 | 254 | 262 | 246 |
| 226 | Lightweight concrete | 3 | 252 | 411 | 406 |
| 227 | Physical organic chemistry | 15 | 247 | 607 | 759 |
| 228 | Japan | 10 | 245 | 871 | 673 |
| 229 | Cybernetics | 17 | 243 | 577 | 944 |
| 230 | Quality Control | 7 | 242 | 1022 | 900 |
| 231 | Fuzzy systems | 21 | 240 | 415 | 595 |
| 232 | Chemical processes | 16 | 239 | 135 | 217 |
| 233 | Diagnostic Imaging | 17 | 238 | 643 | 900 |
| 233 | Radio | 6 | 238 | 955 | 839 |
| 235 | Mechanics | 24 | 236 | 325 | 554 |
| 236 | food technology | 6 | 232 | 1722 | 1578 |
| 236 | multimedia | 7 | 232 | 277 | 308 |
| 236 | Interactive multimedia | 7 | 232 | 313 | 329 |
| 239 | Industrial Safety | 9 | 230 | 574 | 592 |
| 239 | software | 10 | 230 | 478 | 686 |
| 241 | Nonlinear functional analysis | 15 | 228 | 438 | 536 |
| 242 | Industrial Microbiology | 7 | 227 | 1195 | 1315 |
| 243 | Environmental Geochemistry | 14 | 226 | 80 | 175 |
| 243 | brain mapping | 5 | 226 | 449 | 453 |
| 243 | Minerals | 14 | 226 | 199 | 332 |
| 246 | Ultrasonics | 9 | 213 | 631 | 858 |
| 247 | Mineral resources | 8 | 208 | 255 | 419 |
| 248 | micromechanics | 8 | 206 | 314 | 331 |
| 249 | Water Purification | 16 | 202 | 357 | 546 |
| 249 | Technological Innovations | 7 | 202 | 605 | 622 |
| 251 | Optoelectronics | 33 | 201 | 45 | 119 |
| 252 | Psychology | 7 | 200 | 3037 | 2481 |
| 253 | Sustainable Development | 12 | 199 | 863 | 1371 |
| 253 | biopolymers | 10 | 199 | 597 | 737 |
| 255 | food handling | 2 | 198 | 1078 | 625 |
| 256 | Biomass | 6 | 197 | 397 | 530 |
| 257 | Chemical kinetics | 24 | 196 | 103 | 189 |
| 258 | Combinatorial chemistry | 5 | 195 | 520 | 558 |
| 258 | Energy Consumption | 9 | 195 | 152 | 319 |
| 258 | energy development | 13 | 195 | 232 | 589 |
| 261 | Quantum Gravity | 10 | 192 | 1254 | 1296 |
| 262 | biofuels | 3 | 191 | 245 | 289 |
| 263 | Algorithms | 3 | 189 | 752 | 313 |
| 264 | Telecommunication Systems | 19 | 187 | 502 | 831 |
| 265 | Biomechanics | 12 | 186 | 563 | 816 |
| 266 | Computer Science | 18 | 184 | 686 | 1001 |
| 267 | Molecules | 12 | 182 | 774 | 802 |
| 268 | Soft Condensed Matter | 10 | 179 | 557 | 693 |
| 269 | Thermodynamics | 20 | 173 | 327 | 524 |
| 270 | Computer Graphics | 12 | 172 | 806 | 1037 |
| 271 | Sonochemistry | 7 | 171 | 331 | 638 |
| 271 | Natural history | 2 | 171 | 3146 | 2879 |
| 273 | Remote Sensing | 17 | 170 | 500 | 740 |
| 274 | Computer Vision | 11 | 168 | 533 | 867 |
| 275 | Adsorption | 9 | 167 | 57 | 98 |
| 275 | Computational Intelligence | 16 | 167 | 135 | 323 |
| 277 | Bioinorganic chemistry | 8 | 164 | 867 | 970 |
| 277 | optical devices | 9 | 164 | 186 | 237 |
| 279 | Agricultural Chemistry | 5 | 162 | 1609 | 1549 |
| 280 | Wireless Communication Systems | 31 | 161 | 680 | 1447 |
| 281 | Drug delivery systems | 3 | 159 | 1492 | 1225 |
| 281 | Nanotubes | 10 | 159 | 36 | 29 |
| 283 | Computational Biology | 13 | 153 | 1066 | 1596 |
| 284 | Behavior | 3 | 152 | 2627 | 2386 |
| 285 | Municipal Engineering | 3 | 150 | 332 | 194 |
| 285 | Bioinformatics | 24 | 150 | 594 | 1339 |
| 285 | Crystal growth | 9 | 150 | 572 | 742 |
| 288 | Intelligent Control Systems | 12 | 147 | 418 | 424 |
| 288 | computer networks | 19 | 147 | 926 | 1711 |
| 290 | Agriculture | 8 | 146 | 1185 | 1389 |
| 291 | Mesoporous materials | 9 | 145 | 25 | 81 |
| 291 | Imaging systems | 11 | 145 | 260 | 310 |
| 293 | Combinatorial optimization | 17 | 143 | 75 | 138 |
| 293 | Cerebral cortex | 9 | 143 | 482 | 725 |
| 295 | biological factors | 7 | 136 | 1226 | 1375 |
| 295 | violence | 3 | 136 | 930 | 738 |
| 297 | Organometallic compounds | 14 | 135 | 567 | 936 |
| 298 | Internet of Things | 11 | 134 | 521 | 933 |
| 299 | Astrophysics | 17 | 133 | 1443 | 2007 |
| 300 | Medical Physics | 13 | 132 | 687 | 1145 |
| 300 | soil conservation | 10 | 132 | 294 | 618 |
| 300 | Nervous system | 9 | 132 | 1254 | 1702 |
| 303 | internet | 10 | 131 | 792 | 1191 |
| 303 | Nonlinear systems | 8 | 131 | 312 | 385 |
| 305 | Speech Perception | 4 | 127 | 277 | 305 |
| 305 | auditory perception | 4 | 127 | 334 | 355 |
| 305 | Communication | 4 | 127 | 1779 | 1496 |
| 305 | Oral communication | 4 | 127 | 362 | 271 |
| 305 | United States | 8 | 127 | 2761 | 2938 |
| 305 | Speech | 4 | 127 | 743 | 718 |
| 311 | Land use | 7 | 126 | 683 | 966 |
| 312 | Robotics | 13 | 125 | 786 | 1231 |
| 313 | Intelligent Transportation Systems | 4 | 122 | 933 | 976 |
| 313 | Fluid Mechanics | 18 | 122 | 584 | 1037 |
| 315 | Drying | 4 | 121 | 308 | 292 |
| 316 | Plant physiology | 4 | 120 | 1707 | 1820 |
| 317 | Geochemistry | 13 | 119 | 927 | 1510 |
| 318 | management | 6 | 118 | 2439 | 2720 |
| 319 | Information Technology | 12 | 117 | 1145 | 1865 |
| 320 | Electromagnetism | 8 | 116 | 595 | 707 |
| 321 | Quantum theory | 10 | 115 | 533 | 707 |
| 322 | Sustainable agriculture | 7 | 114 | 353 | 574 |
| 323 | Atomic spectroscopy | 7 | 113 | 729 | 811 |
| 324 | Adaptive control systems | 10 | 111 | 221 | 367 |
| 325 | Thermochemistry | 7 | 110 | 307 | 384 |
| 325 | Social Change | 4 | 110 | 887 | 1215 |
| 325 | big data | 5 | 110 | 394 | 468 |
| 328 | Boundary Value Problems | 16 | 109 | 232 | 527 |
| 329 | Mobile Computing | 22 | 108 | 272 | 842 |
| 330 | Computational Chemistry | 6 | 107 | 449 | 605 |
| 331 | Psychiatry | 5 | 105 | 2619 | 2747 |
| 332 | Chemical analysis | 5 | 104 | 842 | 991 |
| 332 | tomography | 3 | 104 | 341 | 233 |
| 332 | Aggression | 2 | 104 | 604 | 501 |
| 335 | Nonlinear mechanics | 7 | 102 | 245 | 340 |
| 336 | Information Theory | 21 | 101 | 456 | 1067 |
| 336 | Database Management | 2 | 101 | 875 | 647 |
| 338 | Bioenergetics | 2 | 99 | 948 | 831 |
| 338 | Highway Engineering | 9 | 99 | 159 | 283 |
| 340 | Industrial Design | 4 | 97 | 197 | 224 |
| 341 | Algebra | 6 | 93 | 1123 | 810 |
| 342 | Neurology | 6 | 90 | 2662 | 3245 |
| 343 | land degradation | 5 | 89 | 314 | 532 |
| 343 | degradation | 5 | 89 | 314 | 532 |
| 345 | Analytical Biochemistry | 9 | 88 | 941 | 1455 |
| 346 | Nuclear Engineering | 8 | 87 | 871 | 999 |
| 346 | Radio waves | 2 | 87 | 936 | 807 |
| 346 | Glass | 9 | 87 | 551 | 951 |
| 349 | pottery | 9 | 86 | 518 | 932 |
| 349 | Refractory materials | 5 | 86 | 82 | 31 |
| 351 | Genomics | 5 | 85 | 1987 | 2411 |
| 351 | emergency management | 5 | 85 | 475 | 650 |
| 351 | Fossil fuels | 18 | 85 | 6 | 10 |
| 354 | behavioral medicine | 2 | 83 | 1427 | 1428 |
| 355 | Ophthalmology | 8 | 82 | 991 | 1350 |
| 355 | soil management | 2 | 82 | 654 | 681 |
| 357 | Functional Analysis | 9 | 81 | 826 | 1051 |
| 358 | Forest Ecology | 3 | 80 | 935 | 1022 |
| 359 | Process Control | 4 | 78 | 818 | 1291 |
| 359 | Emulsions | 10 | 78 | 110 | 236 |
| 361 | Genetic engineering | 2 | 77 | 2027 | 1848 |
| 361 | Fluid Dynamics | 17 | 77 | 394 | 965 |
| 361 | Nanoelectronics | 8 | 77 | 435 | 559 |
| 361 | Mountains | 4 | 77 | 308 | 233 |
| 365 | Computer-Aided Design | 5 | 76 | 916 | 1094 |
| 365 | Paleogeography | 6 | 76 | 668 | 957 |
| 365 | Muscle contraction | 7 | 76 | 134 | 97 |
| 368 | Traffic Engineering | 7 | 75 | 213 | 511 |
| 369 | Paleoclimatology | 5 | 74 | 824 | 1102 |
| 369 | Paleoecology | 5 | 74 | 797 | 1040 |
| 369 | scientific research | 12 | 74 | 10 | 34 |
| 372 | soil pollution | 6 | 73 | 283 | 556 |
| 372 | Combinatorial analysis | 15 | 73 | 417 | 651 |
| 374 | Social Sciences | 14 | 71 | 1539 | 2620 |
| 374 | tillage | 1 | 71 | 706 | 630 |
| 376 | Sociology | 11 | 69 | 1517 | 2526 |
| 376 | Pharmaceutical Technology | 2 | 69 | 1640 | 1540 |
| 376 | catalytic activity | 2 | 69 | 769 | 780 |
| 376 | Landslides | 2 | 69 | 310 | 390 |
| 380 | Planetary Science | 4 | 68 | 397 | 416 |
| 380 | Environmental Law | 1 | 68 | 1497 | 1442 |
| 380 | Ore deposits | 12 | 68 | 208 | 564 |
| 383 | Chromosome mapping | 3 | 67 | 1481 | 1783 |
| 383 | gene mapping | 3 | 67 | 1607 | 1948 |
| 385 | Synthetic biology | 1 | 66 | 506 | 367 |
| 386 | electric vehicles | 4 | 65 | 252 | 368 |
| 386 | Semiconductor industry | 5 | 65 | 421 | 496 |
| 386 | Attention | 5 | 65 | 1045 | 1365 |
| 389 | Neuropsychiatry | 2 | 64 | 850 | 813 |
| 389 | Adhesion | 4 | 64 | 590 | 662 |
| 389 | adhesives | 4 | 64 | 628 | 669 |
| 389 | Textile industry | 11 | 64 | 192 | 365 |
| 393 | Human-Computer Interaction | 5 | 62 | 1155 | 1618 |
| 393 | sustainability | 3 | 62 | 857 | 1143 |
| 395 | Cognitive Science | 8 | 61 | 897 | 1750 |
| 395 | Sedimentary rocks | 5 | 61 | 455 | 706 |
| 395 | carbonate rocks | 5 | 61 | 72 | 80 |
| 398 | Flexible electronics | 1 | 60 | 167 | 179 |
| 399 | air quality management | 3 | 59 | 489 | 660 |
| 400 | Marine Geology | 4 | 58 | 511 | 640 |
| 400 | Nuclear Fusion | 4 | 58 | 458 | 508 |
| 400 | fusion reactors | 4 | 58 | 324 | 297 |
| 403 | Pharmaceutical Chemistry | 6 | 57 | 2277 | 3022 |
| 403 | Bioremediation | 2 | 57 | 1103 | 1195 |
| 403 | Integrated Circuits | 14 | 57 | 279 | 507 |
| 403 | Biodegradation | 2 | 57 | 930 | 1056 |
| 403 | Petroleum | 4 | 57 | 208 | 202 |
| 408 | Agricultural Engineering | 2 | 56 | 531 | 561 |
| 408 | soil microbiology | 3 | 56 | 1294 | 1899 |
| 408 | Ferroelectricity | 11 | 56 | 504 | 787 |
| 408 | Soviet Union | 4 | 56 | 548 | 399 |
| 412 | Meteorology | 4 | 55 | 1642 | 2193 |
| 412 | atmosphere | 4 | 55 | 615 | 955 |
| 412 | wood | 1 | 55 | 762 | 441 |
| 415 | human behavior | 2 | 54 | 2584 | 2993 |
| 415 | Cancer | 3 | 54 | 2153 | 2685 |
| 417 | Geography | 2 | 53 | 2141 | 2001 |
| 418 | Machine Learning | 2 | 52 | 411 | 405 |
| 418 | Regeneration | 2 | 52 | 85 | 85 |
| 420 | Databases | 3 | 51 | 362 | 420 |
| 420 | Product life cycle | 1 | 51 | 527 | 422 |
| 420 | green products | 1 | 51 | 448 | 406 |
| 423 | Transportation | 3 | 50 | 1548 | 1712 |
| 424 | Nondestructive testing | 4 | 48 | 568 | 752 |
| 424 | Historic Preservation | 4 | 48 | 88 | 121 |
| 424 | Thin Films | 6 | 48 | 303 | 524 |
| 427 | Data Mining | 6 | 47 | 1066 | 1896 |
| 427 | Computational Complexity | 8 | 47 | 581 | 1033 |
| 427 | Medical innovations | 4 | 47 | 681 | 1381 |
| 427 | Telecommunication | 8 | 47 | 1608 | 2461 |
| 431 | Neurobiology | 1 | 45 | 1890 | 1785 |
| 431 | Petroleum Geology | 2 | 45 | 581 | 643 |
| 431 | Quantum Mechanics | 1 | 45 | 360 | 109 |
| 431 | Educational Technology | 1 | 45 | 2569 | 1979 |
| 431 | Spine | 2 | 45 | 651 | 773 |
| 436 | Food Preservation | 1 | 44 | 1297 | 864 |
| 436 | Urban Transportation | 2 | 44 | 166 | 133 |
| 438 | Horticulture | 5 | 43 | 542 | 871 |
| 438 | Green Technology | 1 | 43 | 869 | 646 |
| 438 | Freezing | 7 | 43 | 141 | 300 |
| 441 | Computer Engineering | 4 | 42 | 833 | 1179 |
| 441 | Ultrasound | 2 | 42 | 822 | 914 |
| 443 | Neurophysiology | 4 | 41 | 2031 | 2789 |
| 444 | Computational Fluid Dynamics | 2 | 40 | 777 | 836 |
| 444 | Bioprinting | 3 | 40 | 37 | 101 |
| 446 | Humanities | 12 | 39 | 728 | 1783 |
| 446 | Ecological Engineering | 2 | 39 | 790 | 1167 |
| 446 | Agricultural Ecology | 4 | 39 | 831 | 1492 |
| 446 | Globalization | 2 | 39 | 740 | 784 |
| 446 | Planets | 2 | 39 | 1402 | 1696 |
| 446 | Fluorescence | 3 | 39 | 463 | 562 |
| 452 | Forest Management | 2 | 38 | 1058 | 1281 |
| 452 | bioluminescence | 8 | 38 | 127 | 408 |
| 454 | data collection | 4 | 37 | 875 | 1448 |
| 454 | Oxidation | 2 | 37 | 191 | 234 |
| 456 | Botany | 4 | 36 | 2823 | 3709 |
| 456 | air quality | 3 | 36 | 192 | 430 |
| 458 | Economics | 9 | 35 | 2399 | 3601 |
| 458 | Statistics | 12 | 35 | 1313 | 2192 |
| 458 | infrared radiation | 4 | 35 | 506 | 734 |
| 461 | Public Health | 2 | 34 | 4477 | 4601 |
| 461 | Environmental Microbiology | 1 | 34 | 1880 | 1989 |
| 461 | Information Systems | 6 | 34 | 944 | 1879 |
| 461 | Neurochemistry | 4 | 34 | 1710 | 2454 |
| 461 | Medical Microbiology | 1 | 34 | 2380 | 2454 |
| 461 | Digital electronics | 1 | 34 | 601 | 305 |
| 461 | Radio wave propagation | 2 | 34 | 829 | 804 |
| 461 | Shock Waves | 2 | 34 | 218 | 210 |
| 461 | Microorganisms | 1 | 34 | 1407 | 1487 |
| 461 | city planning | 4 | 34 | 1330 | 1946 |
| 471 | Operations Research | 4 | 33 | 1855 | 2383 |
| 471 | Detergents | 17 | 33 | 4 | 36 |
| 471 | Soil ecology | 2 | 33 | 916 | 1240 |
| 474 | Biological Systems | 1 | 32 | 953 | 853 |
| 474 | Wireless Communication | 3 | 32 | 449 | 569 |
| 474 | extraterrestrial environment | 2 | 32 | 705 | 752 |
| 474 | sex crimes | 1 | 32 | 1009 | 913 |
| 474 | astronomical phenomena | 2 | 32 | 639 | 702 |
| 479 | Plate Tectonics | 3 | 31 | 266 | 417 |
| 479 | Radiation | 3 | 31 | 1988 | 2294 |
| 479 | Food additives | 1 | 31 | 1617 | 1716 |
| 479 | Global warming | 2 | 31 | 191 | 223 |
| 479 | Investment analysis | 4 | 31 | 828 | 1298 |
| 479 | hydrocolloids | 1 | 31 | 968 | 1239 |
| 485 | Nuclear Energy | 4 | 30 | 794 | 1080 |
| 485 | Sedimentology | 1 | 30 | 970 | 947 |
| 485 | Microbial Biotechnology | 1 | 30 | 1651 | 1648 |
| 485 | Mass Spectrometry | 2 | 30 | 1182 | 1295 |
| 485 | Microwaves | 10 | 30 | 743 | 1351 |
| 490 | Graph Theory | 9 | 29 | 372 | 715 |
| 490 | Regional Planning | 3 | 29 | 1396 | 1841 |
| 490 | Tissue Engineering | 1 | 29 | 611 | 583 |
| 490 | Regenerative Medicine | 1 | 29 | 307 | 255 |
| 490 | Alloys | 9 | 29 | 99 | 277 |
| 490 | body temperature | 1 | 29 | 990 | 901 |
| 490 | food industry | 2 | 29 | 1001 | 1151 |
| 490 | India | 3 | 29 | 1488 | 1472 |
| 498 | Neuropsychology | 4 | 28 | 1725 | 2612 |
| 498 | Phytochemistry | 2 | 28 | 398 | 637 |
| 498 | Risk Management | 4 | 28 | 521 | 1029 |
| 498 | Phytoremediation | 2 | 28 | 398 | 637 |
| 498 | environmental remediation | 2 | 28 | 480 | 716 |
| 498 | Bioreactors | 2 | 28 | 398 | 637 |
| 504 | Systems Biology | 2 | 27 | 1533 | 2007 |
| 504 | Petrology | 4 | 27 | 756 | 1138 |
| 504 | Atmospheric Physics | 4 | 27 | 1169 | 1893 |
| 504 | Geomagnetism | 1 | 27 | 772 | 785 |
| 504 | Sensor Networks | 7 | 27 | 97 | 379 |
| 504 | Brain | 4 | 27 | 1900 | 2853 |
| 504 | Electromagnetic fields | 4 | 27 | 299 | 353 |
| 504 | synthesis | 4 | 27 | 986 | 1302 |
| 512 | Stochastic Processes | 3 | 26 | 936 | 1208 |
| 512 | Developmental Biology | 2 | 26 | 1869 | 2409 |
| 512 | Hydrodynamics | 4 | 26 | 489 | 888 |
| 512 | High performance computing | 2 | 26 | 97 | 55 |
| 512 | electrocatalysis | 2 | 26 | 136 | 232 |
| 517 | Radiology | 2 | 25 | 1339 | 1417 |
| 517 | Nanobiotechnology | 2 | 25 | 517 | 1031 |
| 517 | cosmic rays | 2 | 25 | 500 | 578 |
| 517 | Quantum Optics | 6 | 25 | 627 | 1114 |
| 517 | economic policy | 2 | 25 | 2562 | 2484 |
| 517 | Ultrasonic Imaging | 1 | 25 | 837 | 830 |
| 517 | Laser Spectroscopy | 6 | 25 | 578 | 1072 |
| 524 | Plant Genetics | 2 | 24 | 753 | 1141 |
| 524 | Artificial Organs | 1 | 24 | 833 | 752 |
| 524 | Microprocessors | 2 | 24 | 777 | 914 |
| 524 | Spectroscopy | 2 | 24 | 237 | 128 |
| 528 | Transport | 1 | 23 | 922 | 1021 |
| 528 | Flood control | 5 | 23 | 132 | 494 |
| 528 | Sea | 1 | 23 | 825 | 889 |
| 528 | Fishery resources | 1 | 23 | 906 | 962 |
| 528 | color | 2 | 23 | 318 | 445 |
| 528 | Water chemistry | 3 | 23 | 312 | 715 |
| 528 | Fisheries | 1 | 23 | 2068 | 1906 |
| 535 | Pharmacology | 4 | 22 | 3329 | 4694 |
| 535 | Risk assessment | 5 | 22 | 407 | 1108 |
| 535 | Sound | 3 | 22 | 1033 | 1268 |
| 535 | Biomolecules | 1 | 22 | 760 | 939 |
| 535 | Plant diseases | 2 | 22 | 1956 | 2284 |
| 540 | Sports Medicine | 8 | 21 | 1425 | 2612 |
| 540 | Optoelectronic devices | 5 | 21 | 735 | 1233 |
| 540 | irrigation | 6 | 21 | 199 | 550 |
| 543 | Health Policy | 1 | 20 | 2686 | 2560 |
| 543 | Seismology | 4 | 20 | 382 | 701 |
| 543 | Cross-Cultural Studies | 1 | 20 | 1274 | 1263 |
| 543 | Parallel Processing | 1 | 20 | 687 | 818 |
| 543 | nuclear magnetic resonance | 2 | 20 | 1029 | 1152 |
| 543 | Magnetic Resonance Spectroscopy | 2 | 20 | 1198 | 1342 |
| 543 | Solutions | 4 | 20 | 311 | 620 |
| 543 | cross-cultural comparison | 1 | 20 | 931 | 943 |
| 543 | cell physiology | 1 | 20 | 1683 | 2006 |
| 543 | Aging | 2 | 20 | 2469 | 2935 |
| 553 | Geriatrics | 2 | 19 | 2656 | 3064 |
| 553 | Oceanography | 6 | 19 | 1090 | 2129 |
| 553 | Environmental Psychology | 1 | 19 | 670 | 903 |
| 553 | Discrete Mathematics | 5 | 19 | 233 | 372 |
| 553 | graph | 5 | 19 | 233 | 372 |
| 553 | cryosphere | 1 | 19 | 527 | 632 |
| 553 | Evolution equations | 1 | 19 | 357 | 257 |
| 560 | Cytology | 2 | 18 | 3239 | 4112 |
| 560 | Structural optimization | 2 | 18 | 429 | 699 |
| 560 | Ergonomics | 1 | 18 | 1343 | 1368 |
| 560 | Cell Biology | 2 | 18 | 3096 | 4013 |
| 560 | isomerism | 1 | 18 | 627 | 647 |
| 560 | Health Risk Assessment | 4 | 18 | 339 | 949 |
| 560 | genome | 3 | 18 | 1245 | 2106 |
| 560 | biological monitoring | 1 | 18 | 863 | 1085 |
| 560 | Chirality | 1 | 18 | 627 | 647 |
| 569 | Project Management | 1 | 17 | 510 | 788 |
| 569 | Computer Architecture | 1 | 17 | 909 | 826 |
| 569 | amino acids | 1 | 17 | 965 | 1162 |
| 569 | Radio frequency | 1 | 17 | 690 | 821 |
| 569 | Exercise | 7 | 17 | 911 | 2017 |
| 574 | Linguistics | 2 | 16 | 1519 | 1639 |
| 574 | Operator theory | 4 | 16 | 365 | 586 |
| 574 | Flood forecasting | 2 | 16 | 138 | 353 |
| 574 | Sports | 6 | 16 | 1436 | 2467 |
| 574 | Plasma devices | 1 | 16 | 477 | 545 |
| 579 | ecological risk assessment | 3 | 15 | 213 | 684 |
| 579 | Ubiquitous computing | 5 | 15 | 143 | 476 |
| 579 | Radioisotopes | 1 | 15 | 1544 | 1468 |
| 579 | Cosmochemistry | 3 | 15 | 828 | 1497 |
| 579 | Isotopes | 1 | 15 | 244 | 295 |
| 584 | Epidemiology | 1 | 14 | 3802 | 4085 |
| 584 | Anatomy | 1 | 14 | 2396 | 2467 |
| 584 | Embryology | 1 | 14 | 1650 | 1963 |
| 584 | Photography | 2 | 14 | 1158 | 826 |
| 584 | Metabolism | 2 | 14 | 2060 | 2944 |
| 584 | Drug design | 1 | 14 | 2138 | 2369 |
| 584 | Electromagnetic waves | 1 | 14 | 586 | 604 |
| 584 | Crystallography | 2 | 14 | 1783 | 1755 |
| 584 | Cell differentiation | 1 | 14 | 1608 | 2043 |
| 584 | supercritical fluids | 1 | 14 | 678 | 917 |
| 584 | plant molecular biology | 1 | 14 | 1924 | 2354 |
| 584 | biomimicry | 1 | 14 | 331 | 444 |
| 584 | Growth | 1 | 14 | 1314 | 1676 |
| 584 | rehabilitation | 4 | 14 | 1685 | 2948 |
| 584 | Heterocyclic compounds | 3 | 14 | 1009 | 1499 |
| 584 | Bones | 2 | 14 | 751 | 1229 |
| 600 | Speech-Language Pathology | 1 | 13 | 527 | 620 |
| 600 | Sustainable Architecture | 2 | 13 | 227 | 361 |
| 600 | Polymer Engineering | 2 | 13 | 149 | 314 |
| 600 | Physical Geography | 3 | 13 | 488 | 995 |
| 600 | Geographic information systems | 5 | 13 | 835 | 1850 |
| 600 | Marine Geophysics | 2 | 13 | 322 | 565 |
| 600 | Marine mineral resources | 2 | 13 | 198 | 357 |
| 600 | Turbulence | 1 | 13 | 399 | 463 |
| 600 | automatic speech recognition | 1 | 13 | 324 | 425 |
| 600 | Methodology | 1 | 13 | 988 | 1016 |
| 600 | Seabed | 2 | 13 | 198 | 357 |
| 611 | Econometrics | 4 | 12 | 1181 | 1893 |
| 611 | diffusion | 3 | 12 | 325 | 315 |
| 611 | Aerosols | 2 | 12 | 615 | 901 |
| 611 | Gene expression regulation | 3 | 12 | 858 | 1589 |
| 611 | Genetic regulation | 3 | 12 | 949 | 1684 |
| 611 | Environmental risk assessment | 2 | 12 | 508 | 919 |
| 611 | protein | 3 | 12 | 1085 | 1791 |
| 611 | Groundwater | 5 | 12 | 373 | 1095 |
| 611 | proteins | 3 | 12 | 1696 | 2698 |
| 620 | Technology Assessment | 1 | 11 | 847 | 1335 |
| 621 | Systems Analysis | 2 | 10 | 1392 | 2115 |
| 621 | Geodynamics | 2 | 10 | 911 | 1356 |
| 621 | Mitochondria | 1 | 10 | 501 | 756 |
| 621 | phenomics | 1 | 10 | 67 | 136 |
| 621 | Fertilizers | 1 | 10 | 553 | 756 |
| 621 | Sun | 1 | 10 | 482 | 574 |
| 621 | Solar System | 1 | 10 | 978 | 1142 |
| 628 | Interfaces | 1 | 9 | 651 | 835 |
| 628 | Electrophysiology | 1 | 9 | 1214 | 1391 |
| 628 | indoor air pollution | 3 | 9 | 354 | 975 |
| 628 | phase diagrams | 1 | 9 | 248 | 278 |
| 628 | Africa | 1 | 9 | 2339 | 2333 |
| 628 | Ventilation | 3 | 9 | 517 | 1142 |
| 628 | Sick building syndrome | 3 | 9 | 354 | 975 |
| 628 | finance | 2 | 9 | 2588 | 3320 |
| 628 | Perception | 3 | 9 | 1399 | 2283 |
| 637 | Geometry | 4 | 8 | 1048 | 1548 |
| 637 | Cartography | 3 | 8 | 436 | 883 |
| 637 | Development Economics | 1 | 8 | 762 | 1002 |
| 637 | Developmental Psychology | 1 | 8 | 1510 | 1840 |
| 637 | Geodesy | 2 | 8 | 946 | 1584 |
| 637 | Online social networks | 1 | 8 | 623 | 883 |
| 637 | Cognitive neuroscience | 2 | 8 | 1030 | 1704 |
| 637 | Raman spectroscopy | 1 | 8 | 1277 | 1640 |
| 637 | free radicals | 1 | 8 | 1639 | 2140 |
| 637 | human development | 1 | 8 | 1227 | 1653 |
| 637 | econometric models | 1 | 8 | 1101 | 1407 |
| 637 | Cognition | 1 | 8 | 2201 | 2685 |
| 649 | Education | 2 | 7 | 3854 | 4829 |
| 649 | Cloud Computing | 1 | 7 | 640 | 1017 |
| 649 | Hydraulic Engineering | 1 | 7 | 1241 | 1484 |
| 649 | Photogrammetry | 5 | 7 | 600 | 1177 |
| 649 | Friction | 1 | 7 | 244 | 451 |
| 649 | Obesity | 1 | 7 | 2157 | 2842 |
| 649 | International Finance | 2 | 7 | 1884 | 2690 |
| 649 | Teaching | 2 | 7 | 2069 | 2943 |
| 649 | Finite Element Method | 1 | 7 | 573 | 776 |
| 649 | drainage | 3 | 7 | 273 | 650 |
| 649 | Decision making | 1 | 7 | 2200 | 2701 |
| 649 | deviant behavior | 1 | 7 | 535 | 677 |
| 649 | mathematical concepts | 2 | 7 | 516 | 888 |
| 649 | Aquaculture | 1 | 7 | 1888 | 2312 |
| 663 | Molecular Pharmacology | 1 | 6 | 1100 | 1543 |
| 663 | Logistics | 1 | 6 | 1001 | 1409 |
| 663 | Conservation Biology | 1 | 6 | 1547 | 1991 |
| 663 | Organizational learning | 4 | 6 | 282 | 1419 |
| 663 | Natural resources | 1 | 6 | 1150 | 1552 |
| 663 | Flexible manufacturing systems | 1 | 6 | 783 | 1185 |
| 663 | Transnational corporations | 1 | 6 | 809 | 1225 |
| 663 | radiative transfer | 1 | 6 | 911 | 1104 |
| 663 | Biodiversity conservation | 1 | 6 | 1950 | 2519 |
| 663 | Earthquake prediction | 3 | 6 | 42 | 134 |
| 663 | Knowledge management | 4 | 6 | 279 | 1430 |
| 663 | Strategic planning | 2 | 6 | 962 | 1725 |
| 663 | starch | 1 | 6 | 588 | 866 |
| 663 | nuclear power | 1 | 6 | 724 | 822 |
| 663 | natural products | 1 | 6 | 2478 | 2904 |
| 663 | crime victims | 1 | 6 | 338 | 561 |
| 663 | Fibers | 2 | 6 | 134 | 263 |
| 663 | Informatics | 1 | 6 | 1262 | 1691 |
| 663 | data protection | 2 | 6 | 787 | 1366 |
| 682 | Archaeology | 1 | 5 | 1739 | 1944 |
| 682 | Medical Technology | 2 | 5 | 1750 | 2925 |
| 682 | Urban Policy | 1 | 5 | 1390 | 1937 |
| 682 | Architectural Design | 3 | 5 | 460 | 1059 |
| 682 | sedimentary basins | 1 | 5 | 323 | 520 |
| 682 | Thrombosis | 1 | 5 | 1148 | 1511 |
| 682 | Noise | 2 | 5 | 184 | 447 |
| 682 | Calculus of Variations | 1 | 5 | 835 | 957 |
| 682 | East Asia | 3 | 5 | 633 | 1519 |
| 682 | Earthquakes | 2 | 5 | 428 | 795 |
| 682 | Matroids | 1 | 5 | 400 | 545 |
| 682 | Cell metabolism | 1 | 5 | 983 | 1429 |
| 682 | Navigation | 1 | 5 | 528 | 653 |
| 682 | aerosol | 1 | 5 | 593 | 795 |
| 696 | Genetics | 1 | 4 | 3738 | 4537 |
| 696 | Physiology | 1 | 4 | 4184 | 5046 |
| 696 | Orthopedics | 1 | 4 | 1637 | 2101 |
| 696 | Climatology | 1 | 4 | 2274 | 2988 |
| 696 | Computational Linguistics | 1 | 4 | 1073 | 1381 |
| 696 | Restoration Ecology | 1 | 4 | 704 | 1046 |
| 696 | Heterocyclic chemistry | 1 | 4 | 1000 | 1356 |
| 696 | Genetic algorithms | 2 | 4 | 406 | 865 |
| 696 | Evolutionary Computation | 2 | 4 | 621 | 1283 |
| 696 | X-rays | 3 | 4 | 516 | 1044 |
| 696 | medical education | 1 | 4 | 2252 | 2856 |
| 696 | Chemical reactors | 1 | 4 | 372 | 487 |
| 696 | sports injuries | 1 | 4 | 912 | 1274 |
| 696 | silicon | 1 | 4 | 728 | 1082 |
| 710 | Language Disorders | 1 | 3 | 1170 | 1564 |
| 710 | Social Psychology | 1 | 3 | 2962 | 3732 |
| 710 | Applied Linguistics | 1 | 3 | 1031 | 1290 |
| 710 | Phonetics | 1 | 3 | 543 | 791 |
| 710 | Product Design | 1 | 3 | 798 | 1094 |
| 710 | Water Conservation | 2 | 3 | 96 | 410 |
| 710 | Speech Disorders | 1 | 3 | 1309 | 1730 |
| 710 | Cardiovascular system | 1 | 3 | 1397 | 1884 |
| 710 | water supply | 1 | 3 | 1257 | 1845 |
| 710 | atmospheric models | 1 | 3 | 808 | 1200 |
| 720 | Software Engineering | 2 | 2 | 1168 | 1955 |
| 720 | Paleontology | 1 | 2 | 1639 | 2115 |
| 720 | Surveying | 1 | 2 | 264 | 440 |
| 720 | Telecommunications | 1 | 2 | 1402 | 1963 |
| 720 | Public Administration | 1 | 2 | 1988 | 2600 |
| 720 | Paleobiology | 1 | 2 | 610 | 879 |
| 720 | Coastal zone management | 1 | 2 | 1076 | 1726 |
| 720 | Superconductors | 1 | 2 | 1177 | 1487 |
| 720 | Simulation Methods | 1 | 2 | 1728 | 2335 |
| 720 | Political Ethics | 1 | 2 | 222 | 391 |
| 720 | Electron Microscopy | 1 | 2 | 634 | 913 |
| 720 | Superconductivity | 1 | 2 | 686 | 959 |
| 720 | Noise control | 2 | 2 | 351 | 333 |
| 720 | Heritage Tourism | 1 | 2 | 285 | 663 |
| 720 | cultural tourism | 1 | 2 | 285 | 663 |
| 720 | Marine resources | 1 | 2 | 1104 | 1752 |
| 720 | movement | 1 | 2 | 647 | 1019 |
| 720 | toxicity testing | 1 | 2 | 1012 | 1608 |
| 720 | probabilities | 1 | 2 | 1774 | 2125 |
| 720 | Microscopy | 1 | 2 | 1990 | 2663 |
| 720 | civil service | 1 | 2 | 616 | 937 |
| 720 | Entomology | 1 | 2 | 2846 | 3539 |
| 720 | applications | 1 | 2 | 136 | 239 |
| 743 | Nutrition | 1 | 1 | 4266 | 5303 |
| 743 | Occupational Therapy | 1 | 1 | 1543 | 2098 |
| 743 | Systems Theory | 1 | 1 | 813 | 1375 |
| 743 | Occupational Health | 1 | 1 | 1605 | 2371 |
| 743 | Signal Transduction | 1 | 1 | 1712 | 2456 |
| 743 | Cytogenetics | 1 | 1 | 1612 | 2335 |
| 743 | Clinical Chemistry | 1 | 1 | 2801 | 3573 |
| 743 | Nuclear Chemistry | 1 | 1 | 1550 | 2128 |
| 743 | Radiochemistry | 1 | 1 | 1475 | 2019 |
| 743 | industrial hygiene | 1 | 1 | 1618 | 2362 |
| 743 | Expert Systems | 1 | 1 | 531 | 1022 |
| 743 | Molecular evolution | 1 | 1 | 2039 | 2928 |
| 743 | locomotion | 1 | 1 | 967 | 1458 |
| 743 | posture | 1 | 1 | 967 | 1458 |
| 743 | Food | 2 | 1 | 3136 | 4823 |
| 743 | cell interaction | 1 | 1 | 1354 | 1931 |
| 743 | Mental illness | 1 | 1 | 2087 | 2981 |
| 743 | gait | 1 | 1 | 967 | 1458 |
| 743 | Leisure | 1 | 1 | 581 | 1013 |
| 743 | walking | 1 | 1 | 967 | 1458 |
| 763 | Public Policy | 1 | 0 | 2447 | 3530 |
| 763 | Number Theory | 2 | 0 | 991 | 1764 |
| 763 | Statistical Mechanics | 1 | 0 | 944 | 1390 |
| 763 | Ecohydrology | 1 | 0 | 699 | 1189 |
| 763 | Powder Metallurgy | 1 | 0 | 434 | 750 |
| 763 | Virology | 1 | 0 | 2823 | 3845 |
| 763 | Social policy | 1 | 0 | 1609 | 2477 |
| 763 | global environmental change | 1 | 0 | 1222 | 2031 |
| 763 | clay minerals | 1 | 0 | 492 | 836 |
| 763 | foods | 1 | 0 | 281 | 645 |
| 763 | Reproduction | 1 | 0 | 2448 | 3302 |
| 763 | planning | 1 | 0 | 1324 | 2146 |
| 763 | environmental issues | 1 | 0 | 770 | 1443 |
| 763 | Economic planning | 1 | 0 | 936 | 1566 |
| 763 | rivers | 1 | 0 | 506 | 981 |
| 763 | Aquatic ecology | 1 | 0 | 1356 | 2001 |