| 1 | Chemistry | 2,847 | 183.4K | 94 | 87 |
| 2 | Materials | 3,031 | 110.7K | 23 | 57 |
| 3 | Catalysis | 1,742 | 86.8K | 4 | 7 |
| 4 | Chemical Engineering | 2,106 | 82.0K | 10 | 18 |
| 5 | Nanotechnology | 1,378 | 71.8K | 54 | 72 |
| 6 | Physics | 2,053 | 61.6K | 206 | 428 |
| 7 | Materials Science | 1,142 | 53.0K | 49 | 65 |
| 8 | Biochemical Engineering | 1,047 | 46.9K | 10 | 26 |
| 9 | Ocean Engineering | 1,628 | 40.0K | 1 | 1 |
| 10 | Biocompatible Materials | 732 | 38.4K | 52 | 68 |
| 11 | Pollution | 677 | 37.8K | 90 | 112 |
| 12 | Nanostructured Materials | 745 | 37.8K | 23 | 27 |
| 13 | Biotechnology | 728 | 32.5K | 89 | 148 |
| 14 | Composite Materials | 704 | 31.7K | 15 | 20 |
| 15 | Biology | 397 | 28.5K | 598 | 614 |
| 16 | Environment | 449 | 28.2K | 142 | 191 |
| 17 | Science | 606 | 27.7K | 462 | 628 |
| 18 | Building Materials | 626 | 26.5K | 9 | 8 |
| 19 | nanoscience | 460 | 26.4K | 46 | 67 |
| 20 | Environmental Health | 483 | 25.9K | 134 | 134 |
| 21 | Analytical Chemistry | 648 | 22.4K | 60 | 77 |
| 22 | Optical materials | 388 | 22.1K | 53 | 59 |
| 23 | Biochemistry | 673 | 21.1K | 555 | 611 |
| 24 | Biomedical Engineering | 720 | 21.0K | 54 | 97 |
| 25 | Manufacturing Processes | 832 | 20.9K | 6 | 7 |
| 26 | Ecology | 442 | 20.6K | 327 | 392 |
| 27 | Environmental Engineering | 345 | 20.5K | 84 | 94 |
| 28 | Structural Engineering | 655 | 20.2K | 9 | 9 |
| 29 | Polymers | 858 | 20.0K | 85 | 152 |
| 30 | Energy Policy | 477 | 19.9K | 15 | 24 |
| 31 | environmental pollution | 459 | 19.3K | 73 | 94 |
| 32 | Artificial Intelligence | 619 | 19.2K | 25 | 86 |
| 33 | Signal Processing | 469 | 18.6K | 48 | 73 |
| 34 | Water | 277 | 18.3K | 58 | 58 |
| 35 | Bioengineering | 378 | 18.1K | 109 | 181 |
| 36 | Surface Chemistry | 559 | 17.9K | 52 | 87 |
| 37 | Colloids | 506 | 17.9K | 77 | 101 |
| 38 | Biomass Energy | 261 | 17.6K | 31 | 34 |
| 39 | polymerization | 729 | 17.4K | 70 | 127 |
| 40 | Automation | 388 | 17.4K | 34 | 69 |
| 41 | actuators | 407 | 17.1K | 8 | 9 |
| 41 | transducers | 407 | 17.1K | 8 | 9 |
| 43 | sanitation | 188 | 16.8K | 67 | 69 |
| 44 | Optics | 1,003 | 16.4K | 76 | 113 |
| 45 | Metals | 278 | 16.3K | 56 | 55 |
| 46 | Image Processing | 387 | 16.3K | 33 | 47 |
| 47 | Earthquake Engineering | 514 | 16.1K | 9 | 11 |
| 48 | China | 793 | 16.0K | 26 | 22 |
| 49 | Membranes | 309 | 15.8K | 19 | 26 |
| 50 | Metallurgy | 312 | 15.6K | 68 | 65 |
| 51 | Water pollution | 217 | 14.9K | 83 | 56 |
| 52 | coal | 426 | 14.9K | 10 | 13 |
| 53 | Carbon | 194 | 14.8K | 13 | 9 |
| 54 | Mathematics | 1,287 | 14.7K | 65 | 116 |
| 55 | Wireless Communication Systems | 386 | 14.6K | 44 | 46 |
| 56 | Mechanical Engineering | 659 | 14.4K | 10 | 10 |
| 57 | Green Chemistry | 322 | 14.1K | 5 | 19 |
| 58 | Rock Mechanics | 320 | 14.0K | 9 | 11 |
| 59 | Molecular Biology | 325 | 13.9K | 662 | 682 |
| 60 | Energy Conversion | 140 | 13.5K | 50 | 58 |
| 60 | energy conservation | 208 | 13.5K | 38 | 44 |
| 62 | Engineering Geology | 316 | 13.4K | 14 | 15 |
| 63 | mass transfer | 465 | 13.0K | 8 | 18 |
| 64 | Technology | 507 | 12.8K | 53 | 72 |
| 65 | Renewable Energy Sources | 215 | 12.6K | 49 | 102 |
| 66 | Electrochemistry | 437 | 12.5K | 147 | 124 |
| 67 | Telecommunication | 212 | 12.3K | 139 | 117 |
| 68 | Soil Mechanics | 300 | 11.8K | 18 | 18 |
| 69 | Statistical physics | 415 | 11.8K | 176 | 195 |
| 70 | Environmental monitoring | 282 | 11.7K | 66 | 108 |
| 71 | Organic Chemistry | 280 | 11.5K | 83 | 80 |
| 72 | Production Engineering | 605 | 11.5K | 6 | 11 |
| 73 | Systems Engineering | 343 | 11.5K | 11 | 13 |
| 74 | Research | 408 | 11.3K | 533 | 601 |
| 75 | Information Science | 258 | 11.3K | 22 | 29 |
| 76 | Environmental Chemistry | 95 | 11.2K | 112 | 83 |
| 77 | Nuclear Physics | 496 | 11.0K | 393 | 488 |
| 78 | Structural optimization | 265 | 10.7K | 1 | 2 |
| 79 | Production Management | 48 | 10.5K | 122 | 17 |
| 80 | Environmental Management | 202 | 10.2K | 51 | 56 |
| 81 | Neural circuitry | 372 | 10.1K | 16 | 32 |
| 82 | Sustainable Engineering | 239 | 9.7K | 5 | 11 |
| 83 | System analysis | 389 | 9.6K | 2 | 22 |
| 84 | Microbiology | 254 | 9.6K | 564 | 653 |
| 85 | Engineering Mathematics | 630 | 9.4K | 1 | 16 |
| 86 | Industrial Engineering | 362 | 9.3K | 11 | 22 |
| 87 | computer networks | 267 | 9.3K | 43 | 50 |
| 88 | fuel cells | 135 | 8.8K | 52 | 67 |
| 89 | Nanoparticles | 264 | 8.6K | 30 | 55 |
| 90 | Internet of Things | 176 | 8.4K | 24 | 17 |
| 91 | internet | 179 | 8.4K | 31 | 22 |
| 92 | Structural dynamics | 241 | 8.4K | 12 | 27 |
| 93 | Heat Exchangers | 290 | 8.3K | 14 | 17 |
| 94 | miniaturization | 167 | 8.2K | 79 | 130 |
| 95 | Fracture mechanics | 329 | 8.2K | 13 | 24 |
| 96 | Process Control | 55 | 8.1K | 38 | 7 |
| 97 | Medicine | 268 | 8.1K | 881 | 989 |
| 98 | Cybernetics | 156 | 7.5K | 41 | 64 |
| 99 | Engineering | 439 | 7.4K | 56 | 118 |
| 100 | management | 122 | 7.3K | 347 | 340 |
| 101 | Smart Materials | 216 | 7.2K | 8 | 9 |
| 102 | vibration | 291 | 7.2K | 10 | 27 |
| 103 | Microelectronics | 144 | 7.2K | 102 | 133 |
| 104 | Operations Research | 139 | 6.9K | 125 | 83 |
| 105 | Measurement | 198 | 6.8K | 16 | 10 |
| 106 | Environmental Policy | 126 | 6.5K | 212 | 234 |
| 107 | Intelligent Transportation Systems | 137 | 6.5K | 35 | 27 |
| 108 | environmental protection | 230 | 6.5K | 67 | 166 |
| 109 | Bioorganic chemistry | 178 | 5.9K | 115 | 163 |
| 110 | Solitons | 176 | 5.8K | 2 | 3 |
| 110 | Fractals | 176 | 5.8K | 2 | 3 |
| 110 | Chaos | 176 | 5.8K | 2 | 3 |
| 113 | pigments | 230 | 5.8K | 3 | 2 |
| 114 | Information Technology | 134 | 5.6K | 58 | 90 |
| 115 | Computational Biology | 182 | 5.6K | 101 | 209 |
| 116 | concrete | 108 | 5.6K | 51 | 75 |
| 117 | Transportation | 136 | 5.6K | 109 | 94 |
| 118 | Toxicology | 148 | 5.6K | 452 | 442 |
| 119 | Structural design | 168 | 5.4K | 7 | 11 |
| 120 | Magnetic Materials | 134 | 5.2K | 63 | 47 |
| 121 | Numerical Analysis | 295 | 5.2K | 6 | 39 |
| 122 | Biosensors | 93 | 5.1K | 54 | 64 |
| 123 | Computer Graphics | 211 | 5.0K | 54 | 100 |
| 124 | Mathematical Physics | 200 | 5.0K | 205 | 235 |
| 125 | Bioinformatics | 172 | 4.9K | 70 | 187 |
| 126 | Informatics | 15 | 4.9K | 249 | 13 |
| 127 | Cheminformatics | 4 | 4.7K | 229 | 6 |
| 128 | Control Theory | 260 | 4.7K | 33 | 84 |
| 129 | Photonics | 175 | 4.6K | 119 | 210 |
| 130 | Electronics | 214 | 4.6K | 216 | 297 |
| 131 | Multimedia Systems | 224 | 4.6K | 25 | 39 |
| 132 | Zeolites | 155 | 4.5K | 4 | 8 |
| 133 | Solid State Physics | 220 | 4.3K | 463 | 580 |
| 134 | energy resources | 46 | 4.3K | 158 | 116 |
| 135 | Systems Analysis | 138 | 4.2K | 7 | 10 |
| 135 | Nuclear Fusion | 266 | 4.2K | 24 | 36 |
| 137 | Combustion | 195 | 4.2K | 42 | 87 |
| 138 | Detectors | 188 | 4.1K | 20 | 18 |
| 139 | Energy Storage | 122 | 4.1K | 26 | 69 |
| 140 | lasers | 215 | 4.1K | 75 | 104 |
| 141 | Civil Engineering | 242 | 4.0K | 21 | 27 |
| 142 | Nanostructures | 151 | 4.0K | 35 | 164 |
| 143 | Computer-Aided Design | 182 | 3.9K | 5 | 38 |
| 144 | Soil dynamics | 155 | 3.9K | 4 | 9 |
| 145 | Communication | 31 | 3.9K | 533 | 184 |
| 146 | Biophysics | 144 | 3.8K | 780 | 877 |
| 147 | health planning | 219 | 3.8K | 15 | 57 |
| 148 | Solid State Chemistry | 176 | 3.8K | 117 | 135 |
| 148 | Social Change | 38 | 3.8K | 64 | 23 |
| 150 | Tunneling | 93 | 3.8K | 13 | 17 |
| 150 | underground construction | 93 | 3.8K | 13 | 17 |
| 152 | Chemical industry | 193 | 3.7K | 40 | 15 |
| 153 | Mining Engineering | 67 | 3.7K | 26 | 21 |
| 154 | Medical Laboratory Science | 66 | 3.7K | 228 | 201 |
| 155 | Organometallic chemistry | 222 | 3.7K | 14 | 24 |
| 156 | Physical Chemistry | 97 | 3.7K | 239 | 268 |
| 157 | Pharmaceutical Chemistry | 150 | 3.6K | 334 | 476 |
| 158 | Fluid Mechanics | 150 | 3.6K | 52 | 97 |
| 159 | Industrial Microbiology | 90 | 3.6K | 88 | 136 |
| 160 | Public Policy | 105 | 3.5K | 98 | 99 |
| 161 | Mobile Computing | 107 | 3.5K | 33 | 48 |
| 162 | Logistics | 56 | 3.4K | 27 | 12 |
| 163 | Bioelectronics | 55 | 3.4K | 87 | 101 |
| 164 | Condensed Matter | 148 | 3.4K | 548 | 624 |
| 165 | Telecommunication Systems | 147 | 3.4K | 27 | 23 |
| 166 | Tribology | 108 | 3.3K | 48 | 43 |
| 167 | Spectrum analysis | 192 | 3.3K | 427 | 792 |
| 168 | Lightweight concrete | 49 | 3.3K | 32 | 39 |
| 169 | Water quality management | 139 | 3.2K | 40 | 65 |
| 170 | Pharmacology | 98 | 3.2K | 864 | 824 |
| 171 | Metallography | 132 | 3.2K | 7 | 10 |
| 172 | Natural history | 19 | 3.2K | 1152 | 1161 |
| 173 | Environmental Toxicology | 73 | 3.1K | 200 | 235 |
| 174 | Nondestructive testing | 99 | 3.1K | 8 | 8 |
| 175 | mathematical analysis | 288 | 3.0K | 29 | 106 |
| 176 | structural stability | 65 | 3.0K | 3 | 7 |
| 177 | Metallic Glasses | 80 | 2.9K | 11 | 13 |
| 178 | Robotics | 120 | 2.7K | 75 | 152 |
| 179 | Environmental pollutants | 69 | 2.6K | 190 | 202 |
| 180 | Naval Architecture | 140 | 2.6K | 7 | 6 |
| 181 | Physical organic chemistry | 91 | 2.6K | 39 | 49 |
| 182 | Hydrology | 91 | 2.6K | 255 | 324 |
| 183 | Geophysics | 68 | 2.6K | 731 | 676 |
| 184 | Photochemistry | 55 | 2.5K | 160 | 94 |
| 184 | Photobiology | 55 | 2.5K | 58 | 41 |
| 186 | Hazardous waste | 41 | 2.5K | 47 | 43 |
| 187 | Recycling | 22 | 2.5K | 93 | 41 |
| 188 | Nonlinear functional analysis | 124 | 2.5K | 7 | 9 |
| 189 | Nonlinear Dynamics | 61 | 2.4K | 419 | 327 |
| 190 | radioactive waste | 31 | 2.3K | 60 | 44 |
| 190 | industrial waste | 31 | 2.3K | 64 | 45 |
| 192 | natural gas | 57 | 2.3K | 27 | 22 |
| 193 | Cytology | 70 | 2.3K | 785 | 982 |
| 194 | Solar Energy | 52 | 2.2K | 160 | 155 |
| 195 | Interactive multimedia | 73 | 2.2K | 32 | 48 |
| 196 | multimedia | 70 | 2.2K | 31 | 48 |
| 197 | Signal Transduction | 5 | 2.2K | 979 | 245 |
| 198 | Plasma devices | 107 | 2.2K | 4 | 28 |
| 199 | Quantum Gravity | 93 | 2.1K | 518 | 578 |
| 200 | Bioinorganic chemistry | 88 | 2.1K | 90 | 122 |
| 201 | pollutants | 54 | 2.1K | 203 | 226 |
| 202 | Cell Biology | 44 | 2.1K | 955 | 1011 |
| 203 | Intelligent Control Systems | 106 | 2.1K | 9 | 14 |
| 204 | Nervous system | 56 | 2.1K | 429 | 486 |
| 205 | Catalysts | 93 | 2.1K | 4 | 23 |
| 206 | Clinical Chemistry | 71 | 2.1K | 400 | 478 |
| 207 | Structural health monitoring | 44 | 2.0K | 6 | 3 |
| 208 | Fluid Dynamics | 89 | 2.0K | 81 | 111 |
| 209 | Ultrasonics | 50 | 1.9K | 118 | 120 |
| 210 | Nanochemistry | 99 | 1.9K | 12 | 20 |
| 211 | carbon monoxide | 34 | 1.9K | 5 | 3 |
| 212 | Electrical Engineering | 107 | 1.9K | 403 | 332 |
| 213 | Industrial Safety | 49 | 1.8K | 106 | 90 |
| 214 | Hydrodynamics | 118 | 1.8K | 8 | 57 |
| 215 | Sustainable Development | 35 | 1.8K | 283 | 270 |
| 216 | Aquaculture | 57 | 1.8K | 210 | 202 |
| 217 | Radio | 46 | 1.8K | 288 | 295 |
| 218 | Fiber Optics | 72 | 1.8K | 88 | 110 |
| 219 | Earth Sciences | 67 | 1.8K | 566 | 622 |
| 220 | Astronomy | 44 | 1.8K | 840 | 787 |
| 221 | Computer Vision | 76 | 1.8K | 76 | 215 |
| 222 | Organometallic compounds | 76 | 1.8K | 74 | 143 |
| 223 | Agricultural Chemistry | 52 | 1.6K | 356 | 391 |
| 224 | Hydraulic Engineering | 85 | 1.6K | 70 | 118 |
| 225 | Geochemistry | 24 | 1.6K | 712 | 532 |
| 226 | Electromagnetism | 61 | 1.6K | 87 | 120 |
| 226 | Cement | 26 | 1.6K | 113 | 148 |
| 228 | Chemical analysis | 52 | 1.6K | 62 | 72 |
| 229 | Nuclear Engineering | 126 | 1.6K | 115 | 141 |
| 230 | environmental exposure | 53 | 1.6K | 181 | 251 |
| 231 | Fuzzy systems | 114 | 1.6K | 28 | 57 |
| 232 | Cognitive Science | 39 | 1.6K | 258 | 297 |
| 233 | Botany | 26 | 1.5K | 1362 | 1037 |
| 234 | Crystal growth | 44 | 1.5K | 90 | 83 |
| 235 | Molecules | 130 | 1.5K | 73 | 258 |
| 236 | Neurology | 35 | 1.5K | 1356 | 1267 |
| 237 | Plastics | 73 | 1.5K | 105 | 183 |
| 238 | Ultrasound | 36 | 1.5K | 110 | 74 |
| 239 | Computer Science | 73 | 1.5K | 121 | 139 |
| 240 | Power Electronics | 41 | 1.4K | 199 | 266 |
| 241 | machinery | 89 | 1.4K | 17 | 42 |
| 242 | Pharmacognosy | 20 | 1.4K | 594 | 364 |
| 243 | Petroleum Engineering | 34 | 1.4K | 128 | 94 |
| 244 | Statistics | 123 | 1.4K | 277 | 466 |
| 245 | Telecommunications | 43 | 1.4K | 20 | 10 |
| 246 | Marine Geology | 42 | 1.4K | 51 | 57 |
| 247 | Health Information Management | 8 | 1.4K | 92 | 85 |
| 247 | Medicinal plants | 18 | 1.4K | 397 | 253 |
| 249 | Plasma chemistry | 95 | 1.4K | 3 | 22 |
| 250 | Energy Harvesting | 18 | 1.4K | 112 | 134 |
| 251 | Molecular Spectroscopy | 77 | 1.4K | 116 | 194 |
| 252 | Molecular structure | 87 | 1.4K | 189 | 464 |
| 253 | Cancer | 43 | 1.3K | 740 | 881 |
| 254 | Parallel Processing | 29 | 1.3K | 75 | 85 |
| 255 | Ceramic materials | 56 | 1.3K | 129 | 170 |
| 256 | Ultrasonic Imaging | 32 | 1.3K | 47 | 20 |
| 257 | Differential Equations | 59 | 1.3K | 86 | 118 |
| 258 | Oncology | 31 | 1.3K | 480 | 855 |
| 259 | Analytical Biochemistry | 49 | 1.3K | 186 | 256 |
| 260 | Physiology | 31 | 1.3K | 1205 | 1093 |
| 261 | Mechanics | 83 | 1.2K | 58 | 132 |
| 261 | energy development | 28 | 1.2K | 86 | 218 |
| 263 | Electrophoresis | 78 | 1.2K | 98 | 242 |
| 263 | solar power | 22 | 1.2K | 138 | 120 |
| 263 | solar cells | 22 | 1.2K | 164 | 147 |
| 266 | Semiconductors | 84 | 1.2K | 171 | 222 |
| 267 | genome | 22 | 1.2K | 406 | 471 |
| 268 | city planning | 43 | 1.2K | 258 | 266 |
| 269 | Pharmaceutical Technology | 35 | 1.2K | 277 | 276 |
| 270 | Marine Biology | 47 | 1.2K | 603 | 679 |
| 271 | Nonlinear systems | 46 | 1.2K | 45 | 53 |
| 272 | Technological Innovations | 44 | 1.2K | 60 | 92 |
| 273 | Behavior | 18 | 1.2K | 1196 | 981 |
| 274 | Chromatographic analysis | 81 | 1.2K | 118 | 217 |
| 275 | Biomechanics | 34 | 1.1K | 255 | 284 |
| 276 | Japan | 47 | 1.1K | 230 | 170 |
| 277 | Medical Physics | 33 | 1.1K | 420 | 429 |
| 278 | impact | 21 | 1.1K | 62 | 60 |
| 279 | Combinatorial chemistry | 24 | 1.1K | 141 | 173 |
| 279 | Chromatography | 70 | 1.1K | 110 | 202 |
| 281 | Psychology | 25 | 1.1K | 1622 | 1154 |
| 282 | Dynamics | 62 | 1.1K | 127 | 150 |
| 282 | Marine Pollution | 33 | 1.1K | 217 | 284 |
| 284 | Geotechnical Engineering | 40 | 1.1K | 74 | 99 |
| 285 | Computational Intelligence | 45 | 1.1K | 26 | 36 |
| 286 | Technology Assessment | 8 | 1.1K | 116 | 14 |
| 287 | food technology | 29 | 1.1K | 721 | 675 |
| 288 | Mechatronics | 55 | 1.1K | 65 | 132 |
| 289 | catalytic activity | 26 | 1.1K | 105 | 110 |
| 290 | Atomic spectroscopy | 60 | 1.1K | 78 | 171 |
| 291 | Public Administration | 14 | 1.1K | 585 | 251 |
| 292 | Microbial Ecology | 20 | 1.1K | 756 | 801 |
| 293 | Cognitive neuroscience | 20 | 1.0K | 331 | 336 |
| 294 | Evolutionary Computation | 32 | 1.0K | 49 | 134 |
| 295 | Radio waves | 38 | 1.0K | 196 | 236 |
| 296 | human behavior | 16 | 1.0K | 952 | 870 |
| 297 | Environmental Geology | 47 | 1.0K | 165 | 310 |
| 298 | Electrochemical Analysis | 51 | 994 | 205 | 306 |
| 299 | micromechanics | 57 | 989 | 39 | 87 |
| 300 | biocatalysis | 6 | 971 | 75 | 127 |
| 300 | Homogeneous catalysis | 6 | 971 | 75 | 127 |
| 300 | Heterogeneous catalysis | 6 | 971 | 75 | 127 |
| 303 | International Finance | 43 | 965 | 260 | 381 |
| 304 | Decision making | 33 | 957 | 248 | 314 |
| 305 | particles | 60 | 956 | 39 | 92 |
| 306 | natural disasters | 38 | 952 | 120 | 234 |
| 307 | Bibliometrics | 27 | 946 | 12 | 20 |
| 308 | Materials Engineering | 70 | 945 | 6 | 21 |
| 309 | Entropy | 42 | 942 | 67 | 44 |
| 310 | Computational Fluid Dynamics | 48 | 941 | 30 | 71 |
| 311 | Data Mining | 47 | 918 | 141 | 398 |
| 311 | hazard mitigation | 34 | 918 | 63 | 112 |
| 313 | proteins | 46 | 917 | 360 | 510 |
| 314 | Calorimetry | 35 | 910 | 146 | 108 |
| 314 | Thermal analysis | 35 | 910 | 146 | 108 |
| 316 | enzymes | 37 | 908 | 265 | 370 |
| 317 | Boundary Value Problems | 48 | 903 | 66 | 114 |
| 318 | Adhesion | 46 | 902 | 19 | 33 |
| 318 | adhesives | 46 | 902 | 24 | 33 |
| 320 | Mineral resources | 14 | 899 | 125 | 68 |
| 321 | Antenna Arrays | 45 | 896 | 59 | 111 |
| 322 | Surface-Active Agents | 20 | 889 | 224 | 218 |
| 322 | Surface properties | 20 | 889 | 251 | 240 |
| 324 | Petroleum Geology | 12 | 882 | 210 | 107 |
| 325 | Food | 21 | 867 | 1134 | 1042 |
| 326 | Regional Planning | 18 | 866 | 555 | 375 |
| 327 | biopolymers | 26 | 861 | 307 | 307 |
| 328 | Functional Analysis | 83 | 860 | 73 | 234 |
| 329 | Cell death | 23 | 853 | 336 | 462 |
| 330 | Quantum electronics | 45 | 849 | 284 | 321 |
| 331 | Oceanography | 81 | 846 | 242 | 553 |
| 332 | big data | 19 | 845 | 56 | 51 |
| 333 | Business | 15 | 842 | 944 | 870 |
| 334 | Greenhouse gases | 17 | 835 | 65 | 71 |
| 335 | local government | 7 | 828 | 189 | 34 |
| 336 | Microbial Biotechnology | 27 | 817 | 104 | 128 |
| 337 | plasma spraying | 26 | 812 | 27 | 29 |
| 338 | environmental indicators | 24 | 803 | 200 | 289 |
| 339 | Asia | 37 | 802 | 489 | 427 |
| 340 | Building | 38 | 797 | 81 | 83 |
| 341 | Iron | 61 | 782 | 25 | 41 |
| 342 | Economics | 43 | 780 | 1158 | 1191 |
| 343 | Tourism | 29 | 779 | 356 | 577 |
| 344 | Nuclear Energy | 50 | 778 | 148 | 155 |
| 345 | Quantum Optics | 43 | 776 | 93 | 145 |
| 345 | Soft Condensed Matter | 23 | 776 | 329 | 310 |
| 347 | Aerospace Engineering | 49 | 774 | 14 | 9 |
| 348 | Vaccines | 7 | 765 | 971 | 437 |
| 349 | Ceramics | 36 | 764 | 266 | 320 |
| 350 | Adaptive control systems | 48 | 759 | 29 | 36 |
| 351 | Thermodynamics | 56 | 756 | 88 | 129 |
| 352 | Genomics | 27 | 737 | 885 | 975 |
| 352 | plant molecular biology | 9 | 737 | 790 | 690 |
| 354 | Highway Engineering | 45 | 729 | 23 | 54 |
| 354 | fusion reactors | 68 | 729 | 44 | 50 |
| 356 | finance | 42 | 724 | 518 | 683 |
| 357 | Luminescence | 45 | 722 | 133 | 180 |
| 358 | water resources | 43 | 721 | 18 | 29 |
| 359 | United States | 29 | 719 | 1502 | 1430 |
| 360 | Neuropsychology | 17 | 718 | 885 | 747 |
| 361 | Geographic information systems | 31 | 713 | 136 | 131 |
| 362 | water supply | 27 | 707 | 218 | 320 |
| 363 | biofuels | 16 | 703 | 54 | 85 |
| 364 | Laser Spectroscopy | 39 | 697 | 83 | 139 |
| 365 | Transportation Engineering | 38 | 691 | 39 | 65 |
| 366 | Waste management | 43 | 687 | 157 | 251 |
| 366 | Plasma polymerization | 57 | 687 | 4 | 37 |
| 368 | Plants | 8 | 685 | 1197 | 781 |
| 369 | Cognitive Therapy | 3 | 684 | 604 | 145 |
| 370 | Geomagnetism | 5 | 664 | 444 | 179 |
| 371 | Metabolism | 13 | 661 | 1047 | 1005 |
| 372 | Enzyme | 19 | 660 | 79 | 124 |
| 373 | Finite Element Method | 40 | 649 | 6 | 20 |
| 374 | Product Design | 39 | 644 | 86 | 87 |
| 375 | sustainability | 20 | 640 | 173 | 315 |
| 375 | Porous materials | 31 | 640 | 65 | 75 |
| 377 | Project Management | 17 | 636 | 58 | 122 |
| 378 | Plant cells | 7 | 632 | 657 | 665 |
| 379 | plasticity | 15 | 628 | 107 | 156 |
| 380 | Imaging systems | 52 | 624 | 25 | 53 |
| 381 | Glass | 23 | 623 | 285 | 322 |
| 382 | Computational Chemistry | 21 | 622 | 128 | 210 |
| 383 | Information Systems | 24 | 621 | 291 | 333 |
| 384 | Multiphase Flow | 24 | 615 | 56 | 100 |
| 385 | pottery | 21 | 614 | 292 | 319 |
| 386 | Hydrocarbons | 16 | 610 | 23 | 6 |
| 387 | nucleic acids | 10 | 606 | 830 | 770 |
| 388 | Public Health | 17 | 601 | 2065 | 1786 |
| 389 | Plant physiology | 12 | 597 | 1046 | 966 |
| 390 | Social Sciences | 44 | 596 | 713 | 890 |
| 390 | Cell metabolism | 4 | 596 | 508 | 429 |
| 392 | Visual Communication | 15 | 593 | 70 | 38 |
| 392 | Image enhancement | 15 | 593 | 56 | 37 |
| 394 | Water Purification | 36 | 585 | 142 | 230 |
| 395 | extraterrestrial environment | 24 | 581 | 98 | 78 |
| 395 | astronomical phenomena | 24 | 581 | 89 | 75 |
| 397 | free radicals | 14 | 580 | 556 | 654 |
| 398 | Crystallography | 21 | 569 | 601 | 307 |
| 399 | Brain | 21 | 560 | 963 | 1044 |
| 400 | Granular materials | 34 | 555 | 41 | 98 |
| 401 | Plant tissue culture | 11 | 554 | 268 | 155 |
| 401 | Plant cell culture | 11 | 554 | 215 | 152 |
| 403 | visualization | 31 | 552 | 349 | 272 |
| 404 | Ventilation | 47 | 551 | 28 | 124 |
| 405 | Astrophysics | 43 | 550 | 1000 | 1369 |
| 406 | Sociology | 19 | 548 | 1097 | 984 |
| 407 | Computational Complexity | 45 | 545 | 53 | 98 |
| 408 | Environmental Law | 13 | 544 | 409 | 582 |
| 409 | ports | 33 | 538 | 16 | 38 |
| 410 | Genetic algorithms | 17 | 536 | 69 | 184 |
| 411 | data collection | 7 | 534 | 611 | 384 |
| 412 | probabilities | 48 | 532 | 243 | 306 |
| 413 | Microwaves | 43 | 525 | 305 | 391 |
| 414 | Environmental Psychology | 3 | 524 | 353 | 164 |
| 414 | biological monitoring | 21 | 524 | 51 | 101 |
| 416 | Sound | 41 | 520 | 158 | 257 |
| 417 | Diagnostic Imaging | 46 | 519 | 320 | 618 |
| 418 | Drying | 21 | 517 | 62 | 82 |
| 419 | Optical Communications | 25 | 515 | 133 | 142 |
| 420 | Marine Geophysics | 30 | 512 | 17 | 28 |
| 420 | Marine mineral resources | 30 | 512 | 10 | 9 |
| 420 | Seabed | 30 | 512 | 10 | 9 |
| 423 | Marine resources | 22 | 506 | 109 | 157 |
| 424 | Bioremediation | 9 | 501 | 318 | 204 |
| 425 | Marine Engineering | 66 | 497 | 13 | 23 |
| 426 | synthesis | 47 | 495 | 66 | 121 |
| 427 | Waterways | 30 | 494 | 9 | 17 |
| 427 | Harbors | 30 | 494 | 9 | 17 |
| 429 | Photography | 324 | 487 | 78 | 147 |
| 430 | Computer Engineering | 30 | 475 | 85 | 147 |
| 431 | Algorithms | 55 | 473 | 12 | 130 |
| 431 | Raman spectroscopy | 12 | 473 | 272 | 192 |
| 431 | Swarm Intelligence | 15 | 473 | 40 | 93 |
| 434 | Mineralogy | 11 | 465 | 690 | 551 |
| 435 | Nanoelectronics | 22 | 464 | 177 | 130 |
| 435 | Corporate Social Responsibility | 5 | 464 | 153 | 104 |
| 435 | environmental auditing | 5 | 464 | 161 | 104 |
| 438 | Neurophysiology | 14 | 460 | 1226 | 1244 |
| 439 | Software Engineering | 24 | 459 | 252 | 363 |
| 440 | Plant diseases | 14 | 456 | 890 | 731 |
| 441 | Friction | 12 | 442 | 19 | 23 |
| 442 | Semiconductor industry | 18 | 434 | 151 | 108 |
| 443 | Industrial Ecology | 5 | 430 | 106 | 78 |
| 443 | protein | 19 | 430 | 384 | 461 |
| 445 | Microbial Metabolism | 13 | 421 | 12 | 36 |
| 446 | Microfabrication | 48 | 418 | 9 | 73 |
| 447 | Nutrition | 13 | 417 | 1879 | 1886 |
| 447 | Geomorphology | 17 | 417 | 535 | 731 |
| 449 | Quantum theory | 14 | 413 | 415 | 336 |
| 450 | Green Technology | 27 | 409 | 18 | 36 |
| 450 | Molecular ecology | 3 | 409 | 938 | 627 |
| 452 | Sonochemistry | 14 | 399 | 154 | 329 |
| 453 | Histology | 12 | 398 | 852 | 834 |
| 453 | Coastal zone management | 16 | 398 | 168 | 201 |
| 455 | Traffic Engineering | 26 | 395 | 48 | 175 |
| 456 | biological factors | 16 | 392 | 728 | 795 |
| 457 | Cognitive Radio Networks | 16 | 391 | 34 | 56 |
| 457 | Herbal medicine | 12 | 391 | 224 | 296 |
| 459 | Simulation Methods | 26 | 389 | 114 | 208 |
| 460 | commerce | 15 | 387 | 561 | 665 |
| 461 | Crystallization | 4 | 385 | 423 | 106 |
| 462 | Combinatorial analysis | 32 | 384 | 207 | 226 |
| 463 | Insects | 17 | 382 | 509 | 497 |
| 464 | Combinatorial optimization | 34 | 379 | 19 | 37 |
| 465 | Zoology | 6 | 371 | 1808 | 949 |
| 466 | Chromosome mapping | 12 | 365 | 747 | 872 |
| 466 | gene mapping | 12 | 365 | 819 | 983 |
| 468 | Chemical processes | 23 | 364 | 85 | 154 |
| 468 | Psychophysiology | 12 | 364 | 1312 | 1390 |
| 470 | Oxidative stress | 11 | 363 | 301 | 577 |
| 471 | Economic History | 25 | 361 | 1081 | 1199 |
| 472 | Information Theory | 29 | 357 | 347 | 600 |
| 473 | Thermochemistry | 10 | 352 | 233 | 165 |
| 474 | Genetic engineering | 16 | 348 | 786 | 1016 |
| 474 | Fuzzy Logic | 6 | 348 | 24 | 14 |
| 474 | Fuzzy Sets | 6 | 348 | 24 | 14 |
| 474 | Fuzzy algorithms | 6 | 348 | 24 | 14 |
| 478 | Bones | 1 | 347 | 962 | 419 |
| 479 | Cloud Computing | 12 | 344 | 76 | 86 |
| 479 | World Wide Web | 13 | 344 | 71 | 59 |
| 481 | Inventory Control | 2 | 343 | 87 | 8 |
| 482 | economic policy | 13 | 342 | 1132 | 800 |
| 483 | Genetics | 12 | 341 | 1555 | 1809 |
| 483 | Oncogenes | 7 | 341 | 612 | 722 |
| 483 | animals | 2 | 341 | 1434 | 381 |
| 486 | Animal Biotechnology | 1 | 338 | 329 | 44 |
| 486 | Animal breeding | 1 | 338 | 1107 | 322 |
| 486 | Wildlife conservation | 1 | 338 | 1537 | 700 |
| 486 | animal diseases | 1 | 338 | 824 | 161 |
| 490 | color | 20 | 337 | 24 | 46 |
| 491 | Horticulture | 2 | 331 | 894 | 218 |
| 492 | drug resistance | 5 | 329 | 474 | 262 |
| 492 | Drug delivery systems | 15 | 329 | 586 | 885 |
| 494 | nuclear power | 23 | 327 | 113 | 100 |
| 495 | Optoelectronics | 28 | 322 | 61 | 62 |
| 496 | Humanities | 21 | 321 | 412 | 395 |
| 497 | Molecular Genetics | 3 | 315 | 1530 | 1045 |
| 498 | Population Genetics | 2 | 314 | 1261 | 684 |
| 498 | cell physiology | 13 | 314 | 628 | 872 |
| 500 | Neurochemistry | 10 | 313 | 1191 | 1215 |
| 501 | air quality management | 14 | 312 | 107 | 188 |
| 502 | Developing countries | 9 | 309 | 1264 | 1039 |
| 503 | Proteome | 11 | 308 | 509 | 637 |
| 504 | Transnational corporations | 12 | 307 | 64 | 107 |
| 505 | Product life cycle | 7 | 303 | 130 | 139 |
| 505 | green products | 7 | 303 | 120 | 134 |
| 507 | drug toxicity | 9 | 302 | 126 | 147 |
| 508 | clay | 10 | 301 | 344 | 464 |
| 508 | software | 17 | 301 | 277 | 579 |
| 510 | Calculus of Variations | 22 | 296 | 101 | 158 |
| 511 | plant viruses | 4 | 295 | 148 | 82 |
| 512 | Chemical kinetics | 28 | 294 | 74 | 103 |
| 513 | Oxidation-reduction | 8 | 293 | 421 | 619 |
| 514 | indoor air pollution | 15 | 291 | 81 | 165 |
| 514 | Sick building syndrome | 15 | 291 | 81 | 165 |
| 516 | marketing | 9 | 290 | 1158 | 1145 |
| 517 | Urban Planning | 10 | 286 | 135 | 187 |
| 517 | community development | 10 | 286 | 239 | 211 |
| 517 | Housing | 10 | 286 | 184 | 217 |
| 517 | Population | 10 | 286 | 411 | 436 |
| 521 | Atmospheric Physics | 9 | 284 | 850 | 890 |
| 522 | Air Conditioning | 33 | 283 | 10 | 35 |
| 523 | Machine Learning | 10 | 280 | 111 | 158 |
| 524 | Human genetics | 3 | 279 | 1378 | 1559 |
| 525 | cytokines | 18 | 275 | 322 | 688 |
| 526 | Soil Science | 14 | 274 | 805 | 1103 |
| 527 | amino acids | 7 | 273 | 282 | 254 |
| 528 | Social policy | 8 | 266 | 579 | 401 |
| 529 | population geography | 7 | 265 | 202 | 160 |
| 530 | Radiation | 25 | 264 | 639 | 956 |
| 530 | Ferroelectricity | 16 | 264 | 390 | 340 |
| 532 | Coastal Engineering | 11 | 261 | 21 | 13 |
| 532 | optical devices | 10 | 261 | 171 | 153 |
| 532 | brain mapping | 5 | 261 | 448 | 428 |
| 535 | Pharmacy | 17 | 260 | 789 | 1105 |
| 536 | heating | 31 | 258 | 11 | 37 |
| 537 | Medical innovations | 9 | 256 | 414 | 771 |
| 538 | Fluorescence | 14 | 255 | 58 | 86 |
| 539 | Food additives | 6 | 254 | 716 | 733 |
| 540 | Australia | 13 | 253 | 740 | 749 |
| 541 | Thin Films | 17 | 251 | 91 | 147 |
| 542 | Microprocessors | 16 | 250 | 140 | 159 |
| 543 | Human-Computer Interaction | 19 | 248 | 430 | 836 |
| 544 | Shock Waves | 22 | 246 | 22 | 53 |
| 545 | Climatology | 9 | 245 | 955 | 1082 |
| 546 | Natural resources | 7 | 243 | 440 | 453 |
| 547 | Systems Biology | 12 | 242 | 629 | 805 |
| 548 | Computer Architecture | 18 | 240 | 114 | 157 |
| 548 | drug evaluation | 8 | 240 | 692 | 678 |
| 550 | Medical Technology | 14 | 236 | 566 | 836 |
| 551 | Immunology | 10 | 234 | 1496 | 1759 |
| 552 | Immunotherapy | 17 | 233 | 616 | 1100 |
| 552 | Urban Policy | 14 | 233 | 259 | 487 |
| 552 | Mountains | 8 | 233 | 152 | 69 |
| 552 | drugs | 16 | 233 | 747 | 1077 |
| 556 | Virology | 13 | 232 | 1184 | 1803 |
| 557 | Risk Management | 9 | 227 | 278 | 323 |
| 557 | planning | 5 | 227 | 540 | 278 |
| 559 | Atmospheric Chemistry | 6 | 226 | 593 | 699 |
| 560 | Microfluidics | 6 | 225 | 120 | 101 |
| 561 | Wireless Communication | 15 | 224 | 64 | 96 |
| 561 | Insect biochemistry | 10 | 224 | 182 | 286 |
| 563 | rehabilitation | 13 | 223 | 914 | 1195 |
| 564 | mathematical concepts | 22 | 222 | 52 | 106 |
| 565 | Tissue Engineering | 9 | 220 | 116 | 175 |
| 565 | Immunopharmacology | 15 | 220 | 317 | 596 |
| 565 | Gene expression regulation | 11 | 220 | 395 | 578 |
| 565 | Nanomanufacturing | 32 | 220 | 4 | 12 |
| 565 | Genetic regulation | 11 | 220 | 460 | 714 |
| 570 | infrared radiation | 16 | 219 | 144 | 177 |
| 571 | Production Planning | 4 | 218 | 208 | 170 |
| 571 | Production Control | 4 | 218 | 204 | 170 |
| 573 | Entomology | 10 | 214 | 1266 | 1075 |
| 574 | supercritical fluids | 20 | 213 | 80 | 248 |
| 574 | toxicity testing | 6 | 213 | 344 | 302 |
| 576 | Industrial Design | 9 | 211 | 84 | 116 |
| 576 | Indoor air quality | 28 | 211 | 4 | 13 |
| 578 | reasoning | 5 | 209 | 261 | 168 |
| 579 | dietary supplements | 5 | 208 | 592 | 517 |
| 580 | Emulsions | 21 | 207 | 46 | 77 |
| 581 | Microstructure | 17 | 206 | 215 | 287 |
| 582 | Freezing | 11 | 205 | 102 | 77 |
| 583 | Child Development | 3 | 203 | 1607 | 1183 |
| 584 | Land use | 9 | 200 | 579 | 783 |
| 584 | Food preferences | 1 | 200 | 673 | 266 |
| 586 | Remote Sensing | 19 | 199 | 459 | 704 |
| 586 | Noise | 20 | 199 | 7 | 17 |
| 588 | Drug design | 17 | 197 | 482 | 976 |
| 589 | data protection | 14 | 195 | 102 | 190 |
| 590 | Nanobiotechnology | 7 | 194 | 175 | 389 |
| 590 | food industry | 6 | 194 | 429 | 308 |
| 592 | behavioral medicine | 3 | 193 | 1191 | 1024 |
| 593 | Nanophotonics | 8 | 188 | 144 | 234 |
| 594 | Aerosols | 11 | 186 | 223 | 315 |
| 595 | Number Theory | 18 | 185 | 245 | 199 |
| 596 | venom | 4 | 184 | 609 | 428 |
| 596 | Toxins | 4 | 184 | 701 | 488 |
| 598 | Social Psychology | 8 | 183 | 1307 | 1473 |
| 599 | cell interaction | 8 | 182 | 558 | 797 |
| 600 | Urban Transportation | 6 | 181 | 46 | 24 |
| 601 | Radio frequency | 4 | 180 | 372 | 266 |
| 602 | Information Retrieval | 10 | 179 | 165 | 310 |
| 602 | Flexible manufacturing systems | 10 | 179 | 122 | 221 |
| 604 | Ecological Engineering | 5 | 175 | 456 | 563 |
| 604 | Strategic planning | 11 | 175 | 267 | 530 |
| 604 | Recombinant DNA | 7 | 175 | 926 | 965 |
| 607 | Epidemiology | 6 | 174 | 2226 | 2112 |
| 607 | Medical Anthropology | 3 | 174 | 1147 | 983 |
| 609 | Pathology | 6 | 173 | 1176 | 1257 |
| 610 | Bioenergetics | 4 | 170 | 697 | 646 |
| 611 | Molecular cloning | 6 | 169 | 956 | 927 |
| 611 | Genetic recombination | 6 | 169 | 942 | 918 |
| 613 | Climate change | 4 | 168 | 789 | 1157 |
| 614 | Radiography | 6 | 164 | 462 | 674 |
| 615 | Hydrometeorology | 2 | 163 | 238 | 212 |
| 615 | Documentation | 4 | 163 | 197 | 161 |
| 617 | Quality Control | 9 | 162 | 846 | 1216 |
| 618 | Health | 6 | 161 | 1381 | 1307 |
| 619 | Food service management | 8 | 160 | 171 | 476 |
| 620 | Biodegradation | 5 | 159 | 534 | 590 |
| 620 | Cognition | 8 | 159 | 1035 | 1163 |
| 622 | drug development | 1 | 158 | 1301 | 869 |
| 622 | language | 8 | 158 | 448 | 596 |
| 624 | Radio wave propagation | 10 | 157 | 334 | 359 |
| 625 | Environmental Microbiology | 6 | 155 | 886 | 1226 |
| 626 | Sensor Networks | 17 | 154 | 30 | 115 |
| 627 | Health Policy | 6 | 153 | 1362 | 1305 |
| 628 | Plant Genetics | 3 | 151 | 624 | 658 |
| 629 | Linguistics | 15 | 150 | 566 | 739 |
| 629 | Fishery management | 6 | 150 | 538 | 500 |
| 631 | Psycholinguistics | 15 | 149 | 367 | 738 |
| 631 | Cell communication | 6 | 149 | 330 | 556 |
| 633 | radiative transfer | 12 | 148 | 259 | 343 |
| 633 | Biodiversity conservation | 3 | 148 | 1463 | 1471 |
| 633 | Eutrophication | 3 | 148 | 858 | 1194 |
| 636 | Proteomics | 13 | 147 | 418 | 852 |
| 636 | Economic Development | 2 | 147 | 1783 | 1237 |
| 636 | Economic planning | 2 | 147 | 682 | 336 |
| 639 | Pharmacokinetics | 8 | 145 | 407 | 658 |
| 639 | Machining | 21 | 145 | 7 | 51 |
| 641 | soil microbiology | 5 | 144 | 1049 | 1428 |
| 642 | Mass Spectrometry | 15 | 141 | 456 | 759 |
| 643 | Group decision making | 2 | 137 | 615 | 334 |
| 643 | Roads | 17 | 137 | 264 | 382 |
| 645 | Architectural Design | 7 | 136 | 235 | 205 |
| 645 | Biological Systems | 6 | 136 | 296 | 389 |
| 645 | Neuroplasticity | 16 | 136 | 15 | 205 |
| 645 | Securities | 5 | 136 | 181 | 268 |
| 649 | hydrocolloids | 1 | 135 | 981 | 766 |
| 650 | peptides | 13 | 133 | 222 | 451 |
| 651 | Developmental Neurobiology | 3 | 132 | 521 | 358 |
| 651 | Catalyst | 3 | 132 | 17 | 60 |
| 653 | cryosphere | 10 | 130 | 173 | 325 |
| 653 | Microscopy | 12 | 130 | 583 | 841 |
| 653 | Breeding | 3 | 130 | 1093 | 904 |
| 656 | Computational Linguistics | 19 | 129 | 47 | 191 |
| 656 | India | 10 | 129 | 598 | 488 |
| 656 | aerosol | 7 | 129 | 215 | 267 |
| 659 | Lipids | 7 | 127 | 768 | 1103 |
| 660 | analysis | 4 | 125 | 319 | 343 |
| 661 | Animal Behavior | 2 | 124 | 1896 | 1535 |
| 661 | food handling | 5 | 124 | 650 | 919 |
| 661 | Cellulose | 5 | 124 | 411 | 548 |
| 664 | Developmental Immunology | 6 | 123 | 366 | 560 |
| 664 | Biomass | 7 | 123 | 330 | 722 |
| 664 | Nonlinear mechanics | 8 | 123 | 202 | 303 |
| 667 | Stochastic Processes | 9 | 122 | 462 | 547 |
| 668 | Animal husbandry | 2 | 120 | 384 | 210 |
| 668 | optical pattern recognition | 8 | 120 | 44 | 30 |
| 668 | livestock | 2 | 120 | 583 | 301 |
| 671 | Investment analysis | 11 | 119 | 335 | 712 |
| 671 | Structure-activity relationship | 7 | 119 | 89 | 214 |
| 673 | soil conservation | 6 | 118 | 502 | 697 |
| 674 | Sustainable Architecture | 13 | 117 | 12 | 32 |
| 674 | Alternative Medicine | 5 | 117 | 1074 | 1257 |
| 676 | Corporate governance | 3 | 116 | 638 | 581 |
| 676 | Ubiquitous computing | 13 | 116 | 22 | 71 |
| 676 | design | 3 | 116 | 252 | 155 |
| 676 | Planets | 4 | 116 | 1141 | 1341 |
| 680 | East Asia | 19 | 114 | 106 | 284 |
| 680 | United Kingdom | 2 | 114 | 1534 | 1155 |
| 682 | Wind power | 5 | 113 | 180 | 171 |
| 683 | Social behavior | 4 | 112 | 982 | 1005 |
| 684 | Integrated Circuits | 11 | 111 | 337 | 318 |
| 684 | Oxidation | 8 | 111 | 62 | 108 |
| 686 | natural products | 7 | 110 | 1177 | 1332 |
| 686 | Human Resources | 3 | 110 | 464 | 569 |
| 686 | human development | 15 | 110 | 280 | 767 |
| 686 | Metrology | 10 | 110 | 12 | 17 |
| 690 | electric vehicles | 9 | 109 | 121 | 288 |
| 690 | Entrepreneurship | 10 | 109 | 423 | 1093 |
| 692 | Molecular Pharmacology | 6 | 108 | 528 | 811 |
| 692 | Erosion | 6 | 108 | 30 | 73 |
| 692 | Biometrics | 13 | 108 | 453 | 761 |
| 695 | Neurolinguistics | 10 | 107 | 187 | 459 |
| 695 | Forest Ecology | 1 | 107 | 1471 | 935 |
| 695 | Forest Management | 1 | 107 | 1415 | 898 |
| 695 | stocks | 3 | 107 | 118 | 173 |
| 699 | Database Management | 7 | 106 | 493 | 649 |
| 699 | soil pollution | 8 | 106 | 202 | 430 |
| 701 | Superconductors | 4 | 105 | 765 | 565 |
| 701 | Microorganisms | 3 | 105 | 973 | 1099 |
| 703 | Food Microbiology | 4 | 104 | 1005 | 1352 |
| 703 | starch | 5 | 104 | 216 | 262 |
| 705 | health services accessibility | 4 | 103 | 760 | 745 |
| 705 | Methodology | 6 | 103 | 284 | 315 |
| 707 | ecosystem | 9 | 102 | 696 | 1336 |
| 708 | Applied Linguistics | 7 | 100 | 345 | 393 |
| 708 | organization | 2 | 100 | 983 | 868 |
| 710 | Physical Geography | 7 | 99 | 263 | 425 |
| 711 | Magnetic Resonance Spectroscopy | 7 | 98 | 712 | 776 |
| 712 | Medical genetics | 6 | 97 | 1340 | 1941 |
| 712 | Carcinogenesis | 3 | 97 | 836 | 910 |
| 712 | complementary therapies | 4 | 97 | 1414 | 1440 |
| 715 | Geology | 10 | 96 | 1622 | 2153 |
| 715 | Meteorology | 5 | 96 | 1552 | 1955 |
| 717 | microwave communication systems | 2 | 95 | 470 | 337 |
| 717 | body temperature | 2 | 95 | 689 | 438 |
| 717 | Microwave devices | 4 | 95 | 413 | 392 |
| 717 | shipbuilding | 23 | 95 | 9 | 30 |
| 721 | Soil ecology | 6 | 94 | 497 | 873 |
| 722 | Malaria | 2 | 93 | 731 | 580 |
| 722 | international cooperation | 3 | 93 | 577 | 556 |
| 724 | Flexible electronics | 2 | 92 | 91 | 129 |
| 725 | Speech Perception | 4 | 91 | 275 | 377 |
| 725 | consumer behavior | 3 | 91 | 550 | 625 |
| 725 | auditory perception | 4 | 91 | 331 | 441 |
| 725 | Speech | 6 | 91 | 633 | 828 |
| 725 | Extreme environments | 3 | 91 | 212 | 286 |
| 730 | Enzyme inhibitors | 6 | 90 | 210 | 363 |
| 730 | Extracellular matrix | 1 | 90 | 366 | 327 |
| 730 | Biomolecules | 4 | 90 | 343 | 560 |
| 730 | collagen | 1 | 90 | 389 | 336 |
| 734 | Cryptography | 7 | 88 | 351 | 371 |
| 735 | Freeze-Drying | 4 | 87 | 284 | 305 |
| 735 | Hypothermia | 4 | 87 | 284 | 305 |
| 735 | Freeze Drying | 4 | 87 | 284 | 305 |
| 735 | Stress | 2 | 87 | 370 | 299 |
| 739 | Plant genetic engineering | 2 | 86 | 986 | 949 |
| 739 | Environmental risk assessment | 3 | 86 | 372 | 360 |
| 741 | Landslides | 3 | 85 | 231 | 353 |
| 742 | Orthopedics | 5 | 84 | 984 | 1116 |
| 742 | Orthopedic Surgery | 5 | 84 | 523 | 610 |
| 742 | Scheduling | 3 | 84 | 128 | 131 |
| 742 | Production Scheduling | 3 | 84 | 128 | 131 |
| 742 | Agriculture | 3 | 84 | 2033 | 1868 |
| 747 | Energy Consumption | 3 | 83 | 353 | 507 |
| 748 | Geometry | 16 | 82 | 498 | 664 |
| 748 | Sleep Disorders | 1 | 82 | 1821 | 1182 |
| 748 | Environmental carcinogens | 2 | 82 | 21 | 51 |
| 748 | Stem cells | 4 | 82 | 996 | 1250 |
| 748 | Sleep | 1 | 82 | 1881 | 1194 |
| 753 | Bioprinting | 2 | 81 | 59 | 62 |
| 753 | Navigation | 7 | 81 | 150 | 170 |
| 753 | traffic safety | 3 | 81 | 285 | 238 |
| 756 | Nonlinear Optics | 4 | 79 | 100 | 98 |
| 757 | Electromagnetic compatibility | 4 | 78 | 288 | 296 |
| 757 | freshwater biology | 2 | 78 | 1103 | 900 |
| 759 | International Relations | 2 | 77 | 1199 | 710 |
| 759 | viruses | 2 | 77 | 1306 | 1382 |
| 759 | Yeast | 4 | 77 | 339 | 497 |
| 759 | Trace elements | 2 | 77 | 354 | 382 |
| 763 | emergency management | 5 | 76 | 484 | 735 |
| 764 | Molecular Microbiology | 3 | 75 | 756 | 1019 |
| 764 | X-ray crystallography | 1 | 75 | 743 | 387 |
| 764 | evaluation | 3 | 75 | 140 | 113 |
| 764 | Investments | 5 | 75 | 324 | 411 |
| 768 | Immunity | 2 | 74 | 1608 | 1767 |
| 769 | Welding | 7 | 73 | 124 | 114 |
| 770 | Agricultural Ecology | 1 | 72 | 1571 | 1296 |
| 770 | Mental Disorders | 3 | 72 | 2235 | 2356 |
| 770 | food contamination | 4 | 72 | 870 | 965 |
| 773 | Graph Theory | 24 | 71 | 159 | 471 |
| 773 | public works | 4 | 71 | 113 | 97 |
| 775 | nuclear magnetic resonance spectroscopy | 3 | 70 | 714 | 593 |
| 775 | NMR | 3 | 70 | 549 | 411 |
| 775 | magnetic resonance | 3 | 70 | 556 | 427 |
| 778 | Molecular evolution | 8 | 69 | 796 | 1715 |
| 778 | Speech Disorders | 4 | 69 | 812 | 936 |
| 778 | radar | 5 | 69 | 104 | 146 |
| 778 | Sonar | 5 | 69 | 92 | 126 |
| 778 | plasma | 2 | 69 | 141 | 88 |
| 783 | Hydrogeology | 4 | 68 | 543 | 716 |
| 783 | Thrombosis | 2 | 68 | 959 | 923 |
| 783 | Biofilms | 1 | 68 | 334 | 295 |
| 783 | vascular diseases | 2 | 68 | 706 | 761 |
| 787 | Food Preservation | 6 | 67 | 521 | 708 |
| 787 | Evidence-Based Medicine | 3 | 67 | 666 | 789 |
| 787 | Synthetic biology | 6 | 67 | 181 | 381 |
| 787 | Interfaces | 2 | 67 | 449 | 307 |
| 791 | Heterocyclic compounds | 6 | 66 | 692 | 740 |
| 792 | Quantum Mechanics | 2 | 64 | 225 | 74 |
| 792 | violence | 2 | 64 | 1151 | 1063 |
| 792 | Aggression | 2 | 64 | 612 | 645 |
| 795 | Behavioral research | 4 | 63 | 468 | 528 |
| 795 | Foodborne diseases | 2 | 63 | 303 | 303 |
| 795 | Textile industry | 7 | 63 | 276 | 388 |
| 798 | Educational Psychology | 2 | 62 | 1632 | 1441 |
| 798 | Drug targeting | 2 | 62 | 397 | 511 |
| 798 | atmosphere | 2 | 62 | 921 | 944 |
| 801 | bioclimatology | 1 | 61 | 1589 | 1100 |
| 801 | individual differences | 1 | 61 | 530 | 463 |
| 801 | water reuse | 2 | 61 | 451 | 464 |
| 801 | Continental shelf | 2 | 61 | 462 | 513 |
| 801 | place marketing | 2 | 61 | 136 | 247 |
| 801 | Climate | 1 | 61 | 1028 | 765 |
| 801 | weather | 1 | 61 | 1000 | 737 |
| 808 | Ethnology | 1 | 60 | 2208 | 1210 |
| 808 | Tropical Medicine | 1 | 60 | 2345 | 1639 |
| 808 | Biodiversity | 5 | 60 | 1667 | 2193 |
| 811 | Health Services Research | 2 | 59 | 1717 | 1519 |
| 811 | Mycology | 4 | 59 | 1248 | 1574 |
| 811 | Communication in medicine | 1 | 59 | 881 | 581 |
| 814 | Geography | 4 | 58 | 1691 | 2015 |
| 814 | disease vectors | 3 | 58 | 923 | 1150 |
| 816 | Sustainable agriculture | 3 | 57 | 701 | 874 |
| 816 | Regeneration | 3 | 57 | 62 | 82 |
| 816 | Risk assessment | 10 | 57 | 187 | 669 |
| 819 | Financial Engineering | 2 | 56 | 187 | 247 |
| 819 | Rheology | 2 | 56 | 691 | 632 |
| 819 | Geodynamics | 3 | 56 | 828 | 999 |
| 819 | Parasitology | 2 | 56 | 2354 | 2132 |
| 819 | Parasitic Diseases | 2 | 56 | 1970 | 1925 |
| 819 | cohesion | 1 | 56 | 25 | 28 |
| 819 | Parasites | 2 | 56 | 1766 | 1598 |
| 819 | Europe | 5 | 56 | 2136 | 2519 |
| 827 | Probability | 3 | 55 | 574 | 668 |
| 827 | Financial management | 3 | 55 | 458 | 705 |
| 827 | Risk | 4 | 55 | 429 | 682 |
| 827 | Library Science | 7 | 55 | 537 | 720 |
| 831 | Ethics | 6 | 54 | 621 | 902 |
| 832 | microwave antennas | 3 | 52 | 401 | 338 |
| 832 | Globalization | 4 | 52 | 461 | 700 |
| 832 | econometric models | 2 | 52 | 832 | 854 |
| 832 | Muscle contraction | 11 | 52 | 67 | 167 |
| 836 | Municipal Engineering | 3 | 51 | 336 | 515 |
| 836 | Veterinary Immunology | 1 | 51 | 550 | 403 |
| 838 | Psychiatry | 5 | 50 | 2685 | 3543 |
| 838 | Adsorption | 2 | 50 | 277 | 275 |
| 838 | Primary health care | 1 | 50 | 2331 | 1729 |
| 838 | Cosmochemistry | 5 | 50 | 669 | 1109 |
| 838 | Methods | 5 | 50 | 68 | 100 |
| 843 | Hematology | 4 | 49 | 1339 | 1775 |
| 843 | Econometrics | 7 | 49 | 917 | 1261 |
| 843 | Knowledge management | 10 | 49 | 57 | 429 |
| 843 | land degradation | 3 | 49 | 492 | 774 |
| 843 | Cell survival | 2 | 49 | 257 | 367 |
| 843 | explosives | 7 | 49 | 79 | 139 |
| 843 | degradation | 3 | 49 | 492 | 774 |
| 843 | molecular chaperones | 2 | 49 | 300 | 369 |
| 843 | Liquid chromatography | 7 | 49 | 254 | 399 |
| 852 | Oral Medicine | 2 | 48 | 875 | 729 |
| 852 | Geosynthetics | 2 | 48 | 116 | 113 |
| 852 | global environmental change | 3 | 48 | 774 | 1221 |
| 855 | Wetland ecology | 5 | 47 | 274 | 581 |
| 855 | administrative agencies | 1 | 47 | 543 | 348 |
| 857 | Agricultural Engineering | 4 | 46 | 361 | 639 |
| 857 | locomotion | 1 | 46 | 972 | 813 |
| 857 | Coding Theory | 3 | 46 | 374 | 324 |
| 857 | posture | 1 | 46 | 972 | 813 |
| 857 | Capital market | 4 | 46 | 347 | 666 |
| 857 | cell membrane | 2 | 46 | 600 | 721 |
| 857 | wood | 3 | 46 | 443 | 503 |
| 857 | plant communities | 1 | 46 | 1437 | 1439 |
| 857 | gait | 1 | 46 | 972 | 813 |
| 857 | walking | 1 | 46 | 972 | 813 |
| 867 | Cardiovascular diseases | 4 | 45 | 1134 | 1462 |
| 867 | Diet | 3 | 45 | 1681 | 2460 |
| 867 | medical education | 1 | 45 | 2326 | 1732 |
| 870 | Bacteriology | 2 | 44 | 1808 | 2200 |
| 870 | Geriatric Oncology | 3 | 44 | 478 | 761 |
| 870 | Eastern Europe | 5 | 44 | 599 | 739 |
| 870 | scientific research | 3 | 44 | 53 | 56 |
| 874 | Diabetes mellitus | 1 | 43 | 2190 | 2043 |
| 874 | Drug delivery devices | 2 | 43 | 313 | 554 |
| 874 | North America | 6 | 43 | 503 | 891 |
| 874 | Diabetes | 2 | 43 | 1816 | 2057 |
| 878 | Fluorescence spectroscopy | 2 | 42 | 273 | 301 |
| 878 | Wetland conservation | 4 | 42 | 221 | 484 |
| 878 | civil service | 2 | 42 | 440 | 495 |
| 878 | Wetlands | 4 | 42 | 230 | 487 |
| 882 | Phytochemistry | 2 | 41 | 397 | 532 |
| 882 | Discrete Mathematics | 11 | 41 | 93 | 214 |
| 882 | technology transfer | 3 | 41 | 248 | 476 |
| 882 | Phytoremediation | 2 | 41 | 397 | 532 |
| 882 | environmental remediation | 2 | 41 | 480 | 608 |
| 882 | Bioreactors | 2 | 41 | 397 | 532 |
| 882 | graph | 11 | 41 | 93 | 214 |
| 882 | Transplantation | 1 | 41 | 1098 | 1053 |
| 890 | Health Services Administration | 2 | 40 | 1198 | 1257 |
| 890 | Medical Oncology | 5 | 40 | 1039 | 1733 |
| 892 | Engineering Ethics | 4 | 39 | 151 | 323 |
| 892 | Heterocyclic chemistry | 7 | 39 | 243 | 513 |
| 892 | Professional ethics | 4 | 39 | 202 | 442 |
| 892 | Flood control | 4 | 39 | 178 | 377 |
| 892 | Allergy | 1 | 39 | 1215 | 1272 |
| 897 | Electronic Packaging | 2 | 38 | 268 | 283 |
| 897 | Antioxidants | 1 | 38 | 1061 | 1177 |
| 897 | Biomarkers | 1 | 38 | 731 | 575 |
| 897 | Broadcasting | 1 | 38 | 360 | 272 |
| 897 | baking | 1 | 38 | 335 | 309 |
| 897 | biochemical markers | 1 | 38 | 1010 | 857 |
| 897 | vitamin C | 1 | 38 | 706 | 741 |
| 897 | vitamin E | 1 | 38 | 706 | 741 |
| 905 | Global Health | 3 | 37 | 1039 | 1313 |
| 905 | Emergency Medical Services | 2 | 37 | 767 | 823 |
| 905 | Cartography | 3 | 37 | 439 | 493 |
| 905 | Seismology | 4 | 37 | 402 | 596 |
| 905 | Medical Microbiology | 2 | 37 | 2022 | 2558 |
| 905 | Sedimentology | 5 | 37 | 430 | 914 |
| 905 | Geodesy | 3 | 37 | 758 | 1030 |
| 905 | Ecohydrology | 2 | 37 | 480 | 520 |
| 905 | Flood forecasting | 3 | 37 | 84 | 238 |
| 905 | Leukemia | 1 | 37 | 973 | 961 |
| 905 | Celestial Mechanics | 1 | 37 | 307 | 235 |
| 905 | Radioisotopes | 3 | 37 | 1028 | 1079 |
| 905 | Mesoporous materials | 2 | 37 | 117 | 170 |
| 905 | Mental illness | 1 | 37 | 2173 | 2121 |
| 905 | Aquatic ecology | 2 | 37 | 1101 | 1171 |
| 920 | Database Security | 3 | 36 | 62 | 110 |
| 920 | Pesticides | 4 | 36 | 527 | 938 |
| 920 | environmental control | 1 | 36 | 381 | 360 |
| 920 | Refractory materials | 9 | 36 | 47 | 81 |
| 920 | electrocatalysis | 2 | 36 | 132 | 174 |
| 925 | Anatomy | 5 | 35 | 1411 | 2052 |
| 925 | Educational Technology | 3 | 35 | 1655 | 2219 |
| 925 | Communication and Culture | 1 | 35 | 520 | 327 |
| 925 | Detergents | 6 | 35 | 25 | 35 |
| 925 | Host-parasite interactions | 3 | 35 | 1061 | 1699 |
| 925 | textile fibers | 5 | 35 | 292 | 565 |
| 925 | Immune system | 1 | 35 | 1195 | 1229 |
| 932 | Operator theory | 8 | 34 | 192 | 392 |
| 932 | Arthropods | 2 | 34 | 318 | 358 |
| 932 | Electromagnetic fields | 7 | 34 | 173 | 313 |
| 935 | Higher Education | 2 | 33 | 774 | 851 |
| 935 | Human Geography | 2 | 33 | 1263 | 1306 |
| 935 | Developmental Biology | 3 | 33 | 1628 | 2334 |
| 938 | Immunochemistry | 2 | 32 | 1084 | 1230 |
| 938 | Real Estate Investment | 1 | 32 | 306 | 250 |
| 938 | anesthesia | 2 | 32 | 600 | 541 |
| 938 | biomimicry | 4 | 32 | 132 | 327 |
| 938 | Money | 2 | 32 | 463 | 684 |
| 943 | Embedded Systems | 5 | 31 | 141 | 267 |
| 943 | economic indicators | 2 | 31 | 133 | 151 |
| 943 | preventive medicine | 2 | 31 | 1243 | 1589 |
| 943 | Continuum Mechanics | 2 | 31 | 216 | 244 |
| 943 | Health promotion | 2 | 31 | 1297 | 1390 |
| 943 | polar regions | 2 | 31 | 731 | 848 |
| 943 | Antarctica | 2 | 31 | 683 | 691 |
| 943 | Petroleum | 2 | 31 | 330 | 312 |
| 943 | prostaglandins | 1 | 31 | 622 | 628 |
| 943 | Cytokine | 2 | 31 | 464 | 728 |
| 953 | Algebra | 6 | 30 | 1128 | 1268 |
| 954 | Food Science | 2 | 29 | 289 | 330 |
| 954 | Turbulence | 3 | 29 | 230 | 347 |
| 956 | Clinical Psychology | 1 | 28 | 1591 | 1576 |
| 956 | Contraception | 1 | 28 | 891 | 907 |
| 956 | Lipid metabolism | 1 | 28 | 675 | 775 |
| 956 | nuclear magnetic resonance | 4 | 28 | 802 | 1067 |
| 956 | Optoelectronic devices | 5 | 28 | 730 | 1091 |
| 956 | geological modeling | 1 | 28 | 950 | 836 |
| 956 | Carbohydrates | 2 | 28 | 511 | 713 |
| 956 | Quality of life | 1 | 28 | 2127 | 2194 |
| 956 | Lipid | 1 | 28 | 677 | 775 |
| 956 | psychotherapy | 1 | 28 | 1710 | 1523 |
| 956 | Algal blooms | 2 | 28 | 339 | 578 |
| 956 | Cyanobacteria | 2 | 28 | 339 | 578 |
| 956 | rivers | 2 | 28 | 358 | 517 |
| 956 | microalgae | 2 | 28 | 339 | 578 |
| 970 | Crisis management | 1 | 27 | 332 | 279 |
| 970 | Cardiovascular system | 2 | 27 | 1174 | 1654 |
| 970 | infection | 2 | 27 | 1543 | 1979 |
| 970 | Solutions | 1 | 27 | 700 | 548 |
| 970 | tests | 1 | 27 | 371 | 427 |
| 975 | Rheumatology | 1 | 26 | 1308 | 1302 |
| 975 | Marine Ecology | 8 | 26 | 458 | 1089 |
| 975 | Organizational change | 3 | 26 | 752 | 1171 |
| 975 | Forecasting | 3 | 26 | 542 | 838 |
| 975 | Diagnosis | 2 | 26 | 464 | 622 |
| 975 | Microcirculation | 3 | 26 | 438 | 763 |
| 975 | neuronal plasticity | 1 | 26 | 226 | 341 |
| 975 | Blood vessels | 3 | 26 | 364 | 673 |
| 975 | Ecological disturbances | 1 | 26 | 75 | 109 |
| 975 | Environmental disasters | 1 | 26 | 75 | 109 |
| 975 | Isotopes | 1 | 26 | 248 | 203 |
| 986 | Plant Ecology | 1 | 25 | 2305 | 2454 |
| 986 | Artificial Organs | 2 | 25 | 640 | 745 |
| 986 | Leadership | 1 | 25 | 956 | 1058 |
| 986 | movement | 1 | 25 | 650 | 680 |
| 986 | Urban Areas | 2 | 25 | 321 | 413 |
| 986 | Soviet Union | 5 | 25 | 449 | 731 |
| 986 | RNA | 2 | 25 | 561 | 866 |
| 986 | infrared technology | 2 | 25 | 264 | 235 |
| 986 | Growth factors | 1 | 25 | 467 | 653 |
| 986 | hygiene | 1 | 25 | 879 | 926 |
| 986 | Radiation effects | 1 | 25 | 1066 | 1247 |
| 997 | Systems Theory | 2 | 24 | 543 | 545 |
| 997 | Cosmology | 2 | 24 | 734 | 845 |
| 997 | Histochemistry | 3 | 24 | 948 | 1367 |
| 997 | Restoration Ecology | 1 | 24 | 731 | 750 |