| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|
| 1 | Chemistry | 653 | 66,566 | 392 | 194 |
| 2 | Physics | 901 | 48,193 | 40 | 248 |
| 3 | Solid State Physics | 588 | 45,727 | 21 | 13 |
| 4 | Condensed Matter | 575 | 45,156 | 22 | 16 |
| 5 | Materials | 468 | 40,866 | 110 | 48 |
| 6 | Biotechnology | 471 | 39,680 | 30 | 23 |
| 7 | Renewable Energy Sources | 259 | 27,638 | 1 | 1 |
| 8 | Nanotechnology | 271 | 25,028 | 217 | 137 |
| 9 | Energy Conversion | 288 | 23,942 | 2 | 2 |
| 10 | Chemical Engineering | 200 | 21,239 | 88 | 13 |
| 11 | Materials Science | 677 | 21,216 | 21 | 58 |
| 12 | Science | 134 | 20,237 | 1.9K | 1.4K |
| 13 | Molecular Biology | 118 | 20,209 | 1.8K | 500 |
| 14 | Biology | 149 | 19,859 | 1.7K | 1.2K |
| 15 | Bioengineering | 131 | 17,901 | 146 | 101 |
| 16 | Physical Chemistry | 113 | 15,721 | 111 | 20 |
| 17 | solar cells | 242 | 15,549 | 1 | 1 |
| 18 | Environmental Chemistry | 109 | 15,060 | 13 | 7 |
| 19 | Biochemistry | 258 | 15,051 | 836 | 596 |
| 20 | Solar power plants | 189 | 13,901 | 1 | 1 |
| 20 | Photovoltaic Cells | 189 | 13,901 | 1 | 1 |
| 22 | Biomass Energy | 192 | 13,812 | 5 | 4 |
| 23 | Microelectronics | 108 | 13,183 | 46 | 53 |
| 24 | miniaturization | 91 | 12,971 | 85 | 63 |
| 25 | energy development | 63 | 12,675 | 1 | 2 |
| 26 | Green Chemistry | 212 | 12,071 | 15 | 13 |
| 27 | Catalysis | 236 | 11,789 | 94 | 86 |
| 28 | energy conservation | 172 | 10,083 | 3 | 3 |
| 29 | Electrical Engineering | 603 | 9,657 | 1 | 6 |
| 30 | Energy Storage | 196 | 9,330 | 2 | 2 |
| 31 | Nanostructured Materials | 189 | 9,031 | 88 | 88 |
| 32 | Biomedical Engineering | 173 | 8,708 | 87 | 65 |
| 33 | fuel cells | 148 | 8,331 | 7 | 34 |
| 34 | nanoscience | 105 | 8,322 | 224 | 199 |
| 35 | biofuels | 111 | 8,203 | 1 | 1 |
| 36 | Wind power | 228 | 8,000 | 2 | 1 |
| 37 | Solar Energy | 225 | 7,986 | 1 | 1 |
| 38 | Energy Harvesting | 129 | 7,948 | 1 | 2 |
| 39 | Electronics | 126 | 7,448 | 125 | 42 |
| 40 | Electrochemistry | 536 | 7,415 | 3 | 16 |
| 41 | Natural history | 20 | 7,135 | 2.4K | 2.2K |
| 42 | Microbiology | 93 | 7,002 | 1.6K | 1.3K |
| 43 | Environmental Health | 81 | 6,833 | 546 | 349 |
| 44 | Sustainable Engineering | 151 | 6,574 | 7 | 8 |
| 45 | Biocompatible Materials | 138 | 6,565 | 352 | 421 |
| 46 | Environment | 79 | 6,200 | 401 | 390 |
| 47 | Optical materials | 81 | 6,012 | 274 | 187 |
| 48 | Environmental Management | 76 | 5,924 | 29 | 24 |
| 49 | Pollution | 62 | 5,178 | 820 | 552 |
| 50 | Biochemical Engineering | 51 | 5,160 | 92 | 265 |
| 51 | Environmental Engineering | 62 | 4,949 | 376 | 317 |
| 52 | Botany | 24 | 4,945 | 2.2K | 579 |
| 53 | sanitation | 54 | 4,662 | 213 | 233 |
| 54 | plant molecular biology | 15 | 4,279 | 986 | 244 |
| 55 | Technology | 59 | 4,250 | 269 | 86 |
| 56 | Plant cells | 13 | 4,010 | 997 | 362 |
| 57 | Plants | 10 | 3,780 | 1.8K | 299 |
| 58 | Cell Biology | 5 | 3,494 | 17.4K | 3.1K |
| 59 | Photonics | 38 | 3,465 | 347 | 142 |
| 60 | Energy Consumption | 42 | 3,444 | 4 | 2 |
| 61 | Light | 19 | 3,008 | 165 | 84 |
| 62 | Ecology | 33 | 2,839 | 2.8K | 2.0K |
| 63 | Colloids | 34 | 2,290 | 1.1K | 559 |
| 64 | Energy Policy | 53 | 2,194 | 9 | 12 |
| 65 | Cellulose | 33 | 2,185 | 41 | 7 |
| 66 | Microbial Ecology | 27 | 2,097 | 836 | 769 |
| 67 | Agricultural Chemistry | 14 | 2,011 | 1.6K | 313 |
| 68 | Cytology | 6 | 1,986 | 15.5K | 5.0K |
| 69 | Research | 36 | 1,972 | 7.5K | 4.8K |
| 70 | Industrial Engineering | 27 | 1,961 | 379 | 103 |
| 71 | Surface Chemistry | 25 | 1,960 | 1.2K | 562 |
| 72 | Medicine | 22 | 1,880 | 17.9K | 10.5K |
| 73 | Bioorganic chemistry | 15 | 1,775 | 1.8K | 478 |
| 74 | Statistical physics | 23 | 1,760 | 1.2K | 414 |
| 75 | Nonlinear Dynamics | 20 | 1,720 | 610 | 167 |
| 76 | Industrial Microbiology | 28 | 1,687 | 274 | 189 |
| 77 | Medical Laboratory Science | 18 | 1,667 | 398 | 184 |
| 78 | solar power | 53 | 1,648 | 3 | 5 |
| 79 | Genetic engineering | 22 | 1,522 | 370 | 308 |
| 80 | Polymers | 52 | 1,477 | 1.5K | 1.5K |
| 81 | Nanostructures | 6 | 1,460 | 1.9K | 437 |
| 82 | Analytical Chemistry | 39 | 1,459 | 1.7K | 1.6K |
| 83 | Environmental Policy | 13 | 1,431 | 858 | 368 |
| 84 | Power Electronics | 31 | 1,411 | 174 | 169 |
| 85 | Transportation | 42 | 1,353 | 124 | 90 |
| 86 | Meteorology | 23 | 1,348 | 523 | 523 |
| 87 | energy resources | 40 | 1,336 | 2 | 27 |
| 88 | Radio | 7 | 1,310 | 781 | 194 |
| 89 | Metabolism | 23 | 1,256 | 1.9K | 1.9K |
| 90 | Magnetic Materials | 37 | 1,172 | 208 | 236 |
| 91 | Sustainable Development | 17 | 1,042 | 92 | 98 |
| 92 | Organometallic compounds | 13 | 968 | 676 | 253 |
| 93 | Organic Chemistry | 12 | 962 | 2.8K | 1.2K |
| 94 | sustainability | 7 | 954 | 106 | 30 |
| 95 | Economic Development | 6 | 945 | 447 | 72 |
| 96 | United States | 43 | 937 | 1.0K | 1.5K |
| 97 | Plant physiology | 10 | 870 | 1.7K | 1.2K |
| 98 | biocatalysis | 10 | 809 | 31 | 109 |
| 98 | polymerization | 29 | 809 | 1.8K | 1.7K |
| 98 | Homogeneous catalysis | 10 | 809 | 31 | 109 |
| 98 | Heterogeneous catalysis | 10 | 809 | 31 | 109 |
| 102 | Plant genetic engineering | 10 | 772 | 463 | 300 |
| 103 | Heat Exchangers | 4 | 714 | 13 | 3 |
| 104 | Semiconductors | 10 | 644 | 211 | 24 |
| 105 | Automation | 13 | 642 | 825 | 639 |
| 106 | Control Theory | 11 | 633 | 782 | 309 |
| 107 | atmospheric models | 20 | 632 | 105 | 160 |
| 108 | Optics | 57 | 597 | 650 | 1.4K |
| 109 | Geophysics | 20 | 596 | 1.6K | 1.8K |
| 110 | Roads | 34 | 542 | 103 | 124 |
| 111 | Biophysics | 19 | 519 | 6.9K | 6.9K |
| 112 | Climatology | 6 | 480 | 1.3K | 825 |
| 113 | Agronomy | 4 | 469 | 556 | 173 |
| 114 | Combustion | 18 | 453 | 80 | 77 |
| 115 | winds | 15 | 436 | 2 | 2 |
| 116 | Industrial Ecology | 3 | 430 | 84 | 54 |
| 117 | Algae | 4 | 425 | 796 | 322 |
| 117 | Seaweed | 4 | 425 | 590 | 259 |
| 119 | wood | 7 | 420 | 151 | 45 |
| 120 | Turbulence | 5 | 414 | 94 | 16 |
| 121 | Plant Ecology | 5 | 404 | 1.5K | 1.1K |
| 122 | Transgenic plants | 4 | 387 | 359 | 153 |
| 123 | Atmospheric Physics | 13 | 373 | 672 | 887 |
| 123 | Microbial Biotechnology | 6 | 373 | 571 | 266 |
| 125 | Ceramics | 23 | 371 | 378 | 740 |
| 126 | Soft Condensed Matter | 11 | 364 | 515 | 521 |
| 126 | Glass | 14 | 364 | 499 | 713 |
| 126 | pottery | 14 | 364 | 478 | 703 |
| 126 | biopolymers | 11 | 364 | 666 | 663 |
| 130 | Metallurgy | 13 | 351 | 735 | 556 |
| 131 | Plant Biotechnology | 5 | 343 | 721 | 418 |
| 132 | Nuclear Energy | 3 | 342 | 606 | 103 |
| 133 | Electromagnetism | 7 | 332 | 494 | 299 |
| 134 | Public Policy | 1 | 324 | 4.9K | 515 |
| 134 | power plants | 1 | 324 | 10 | 11 |
| 136 | Histology | 5 | 315 | 3.7K | 2.8K |
| 137 | Radiation | 4 | 306 | 1.5K | 449 |
| 138 | Synthetic biology | 14 | 298 | 115 | 226 |
| 139 | Plant Genetics | 4 | 289 | 915 | 840 |
| 140 | computer networks | 9 | 277 | 809 | 523 |
| 141 | Multimedia Systems | 8 | 273 | 683 | 274 |
| 142 | coal | 11 | 259 | 1 | 5 |
| 143 | Computational Biology | 4 | 258 | 8.2K | 6.7K |
| 144 | Fluid Mechanics | 19 | 254 | 681 | 1.6K |
| 145 | Nanoparticles | 9 | 245 | 1.8K | 2.9K |
| 146 | Genomics | 5 | 243 | 7.3K | 6.0K |
| 147 | Engineering | 10 | 241 | 2.2K | 2.1K |
| 147 | Ocean Engineering | 12 | 241 | 91 | 94 |
| 149 | Nanoelectronics | 16 | 227 | 25 | 19 |
| 150 | Soil Science | 4 | 226 | 1.3K | 832 |
| 150 | electric vehicles | 5 | 226 | 134 | 56 |
| 152 | Mathematics | 6 | 225 | 7.5K | 2.9K |
| 152 | Solid State Chemistry | 7 | 225 | 1.2K | 775 |
| 152 | Planets | 6 | 225 | 1.7K | 2.0K |
| 155 | Genetics | 2 | 220 | 22.1K | 16.4K |
| 156 | Data Mining | 8 | 219 | 276 | 805 |
| 156 | Organometallic chemistry | 3 | 219 | 2.3K | 756 |
| 156 | data collection | 8 | 219 | 117 | 554 |
| 159 | Geography | 3 | 217 | 3.0K | 1.6K |
| 159 | Plant breeding | 2 | 217 | 1.8K | 584 |
| 161 | Chromosome mapping | 4 | 213 | 3.1K | 3.0K |
| 161 | gene mapping | 4 | 213 | 4.0K | 4.3K |
| 163 | environmental protection | 6 | 212 | 3.1K | 4.1K |
| 164 | bioclimatology | 1 | 211 | 1.9K | 312 |
| 165 | Bioinformatics | 2 | 210 | 10.3K | 6.0K |
| 166 | environmental pollution | 7 | 208 | 5.0K | 6.4K |
| 167 | Economics | 4 | 203 | 3.8K | 2.1K |
| 168 | Nanochemistry | 9 | 200 | 527 | 394 |
| 169 | mass transfer | 9 | 198 | 115 | 123 |
| 170 | Biomass | 4 | 195 | 3 | 5 |
| 171 | Mechanical Engineering | 6 | 194 | 1.8K | 730 |
| 171 | Composite Materials | 4 | 194 | 1.4K | 633 |
| 173 | Climate change | 1 | 192 | 3.8K | 2.6K |
| 173 | Biodiversity conservation | 1 | 192 | 5.8K | 3.2K |
| 173 | Eutrophication | 1 | 192 | 3.4K | 2.6K |
| 173 | Spectrum analysis | 9 | 192 | 3.0K | 3.5K |
| 177 | Air Conditioning | 17 | 188 | 16 | 27 |
| 177 | Ventilation | 17 | 188 | 65 | 311 |
| 177 | heating | 17 | 188 | 16 | 27 |
| 180 | Geochemical Modeling | 3 | 177 | 247 | 197 |
| 180 | geological modeling | 3 | 177 | 358 | 218 |
| 182 | Atmospheric Chemistry | 5 | 173 | 746 | 1.0K |
| 183 | transgenic organisms | 2 | 170 | 296 | 171 |
| 183 | transgenic animals | 2 | 170 | 282 | 164 |
| 185 | Environmental monitoring | 7 | 168 | 3.6K | 6.4K |
| 185 | Rheology | 2 | 168 | 788 | 309 |
| 187 | Electrochemical Analysis | 3 | 165 | 1.1K | 542 |
| 188 | Electronic Packaging | 9 | 160 | 68 | 97 |
| 189 | Photography | 38 | 158 | 32 | 58 |
| 189 | Dynamics | 6 | 158 | 1.1K | 726 |
| 189 | Analytical Biochemistry | 6 | 158 | 1.2K | 1.3K |
| 192 | Engineering Mathematics | 7 | 149 | 2.2K | 1.5K |
| 193 | machinery | 2 | 146 | 645 | 76 |
| 194 | electrocatalysis | 2 | 144 | 102 | 21 |
| 194 | proteins | 7 | 144 | 3.4K | 6.5K |
| 196 | Crystal growth | 12 | 143 | 454 | 1.3K |
| 197 | Recycling | 2 | 139 | 42 | 78 |
| 198 | Bioenergetics | 6 | 137 | 412 | 1.1K |
| 198 | Energy metabolism | 6 | 137 | 333 | 902 |
| 200 | Microscopy | 78 | 136 | 42 | 1.5K |
| 201 | Signal Processing | 3 | 134 | 3.6K | 2.7K |
| 202 | Plastics | 3 | 133 | 2.3K | 1.1K |
| 203 | Measurement | 4 | 131 | 388 | 255 |
| 204 | Water | 4 | 125 | 2.4K | 4.0K |
| 204 | Crystallography | 10 | 125 | 1.2K | 1.1K |
| 204 | protein | 6 | 125 | 1.8K | 3.0K |
| 207 | Systems Biology | 5 | 124 | 2.0K | 2.4K |
| 207 | Developmental Biology | 1 | 124 | 15.3K | 10.8K |
| 207 | Plant tissue culture | 1 | 124 | 1.9K | 876 |
| 207 | Plant cell culture | 1 | 124 | 1.9K | 876 |
| 211 | Greenhouse gases | 2 | 123 | 70 | 56 |
| 212 | Quantum electronics | 6 | 122 | 1.1K | 1.1K |
| 212 | cell membrane | 5 | 122 | 308 | 852 |
| 214 | Membranes | 3 | 118 | 2.2K | 2.5K |
| 215 | Intelligent Transportation Systems | 10 | 113 | 330 | 894 |
| 216 | Computational Chemistry | 1 | 111 | 2.2K | 1.1K |
| 217 | Breeding | 1 | 107 | 4.5K | 2.1K |
| 218 | Environmental Microbiology | 2 | 106 | 3.8K | 4.5K |
| 219 | Combinatorial chemistry | 5 | 104 | 976 | 2.3K |
| 220 | Environmental Toxicology | 1 | 102 | 11.5K | 7.0K |
| 221 | Medical Technology | 4 | 101 | 1.4K | 2.6K |
| 222 | Proteomics | 1 | 98 | 5.7K | 3.3K |
| 223 | Indoor air quality | 10 | 95 | 14 | 21 |
| 224 | Thermodynamics | 9 | 94 | 124 | 206 |
| 224 | Integrated Circuits | 18 | 94 | 81 | 179 |
| 226 | Liquid Crystals | 5 | 90 | 819 | 490 |
| 226 | Metals | 7 | 90 | 1.0K | 1.2K |
| 228 | Mineralogy | 7 | 89 | 728 | 1.5K |
| 228 | radiative transfer | 2 | 89 | 72 | 43 |
| 230 | Quantum Chemistry | 2 | 85 | 1.4K | 697 |
| 231 | Nondestructive testing | 3 | 84 | 409 | 319 |
| 231 | Nonlinear systems | 1 | 84 | 1.6K | 622 |
| 233 | Mathematical Physics | 8 | 83 | 1.5K | 2.1K |
| 234 | city planning | 9 | 82 | 402 | 1.3K |
| 235 | X-ray crystallography | 7 | 79 | 496 | 769 |
| 235 | Protein engineering | 1 | 79 | 812 | 495 |
| 235 | molecular design | 1 | 79 | 806 | 484 |
| 238 | Structural health monitoring | 2 | 75 | 248 | 240 |
| 238 | structural stability | 2 | 75 | 575 | 368 |
| 240 | Informatics | 3 | 73 | 1.4K | 2.0K |
| 241 | Lipids | 2 | 65 | 3.6K | 5.2K |
| 241 | Forest genetics | 2 | 65 | 276 | 271 |
| 243 | Tribology | 1 | 63 | 2.1K | 886 |
| 243 | Water pollution | 2 | 63 | 5.4K | 7.0K |
| 245 | Fracture mechanics | 2 | 62 | 1.1K | 836 |
| 246 | Civil Engineering | 5 | 61 | 1.3K | 1.4K |
| 246 | Photochemistry | 11 | 61 | 439 | 3.1K |
| 248 | Land use | 3 | 60 | 568 | 1.0K |
| 248 | Developing countries | 2 | 60 | 2.9K | 2.9K |
| 250 | Superconductors | 11 | 59 | 245 | 561 |
| 250 | phase diagrams | 1 | 59 | 273 | 117 |
| 252 | plant communities | 2 | 57 | 2.4K | 4.1K |
| 253 | Marine resources | 3 | 56 | 94 | 145 |
| 254 | Thermochemistry | 1 | 55 | 41 | 15 |
| 254 | lasers | 3 | 55 | 2.5K | 2.7K |
| 256 | Mass Spectrometry | 4 | 54 | 1.9K | 4.0K |
| 257 | Urban Transportation | 1 | 52 | 251 | 71 |
| 258 | Nuclear Engineering | 3 | 51 | 1.1K | 925 |
| 259 | Catalysts | 2 | 48 | 1.2K | 1.2K |
| 260 | Stochastic Processes | 1 | 47 | 2.0K | 1.1K |
| 261 | Molecular Microbiology | 1 | 46 | 4.6K | 6.3K |
| 261 | Ferroelectricity | 4 | 46 | 787 | 910 |
| 261 | Social Change | 1 | 46 | 635 | 785 |
| 264 | software | 1 | 45 | 1.6K | 1.6K |
| 265 | Crystallization | 5 | 44 | 389 | 517 |
| 266 | Yeast | 1 | 43 | 1.7K | 1.6K |
| 267 | Methodology | 2 | 42 | 458 | 465 |
| 267 | Methods | 2 | 42 | 167 | 135 |
| 269 | global environmental change | 2 | 41 | 670 | 1.4K |
| 270 | Natural resources | 1 | 39 | 1.2K | 1.0K |
| 270 | Building | 3 | 39 | 562 | 871 |
| 272 | Optoelectronics | 3 | 38 | 295 | 222 |
| 272 | Carbohydrate | 1 | 38 | 17 | 46 |
| 272 | Carbohydrates | 1 | 38 | 1.6K | 1.7K |
| 272 | biological monitoring | 2 | 38 | 678 | 1.3K |
| 276 | Astrophysics | 1 | 37 | 5.8K | 4.5K |
| 277 | calcification | 1 | 36 | 2.1K | 2.8K |
| 277 | Zeolites | 2 | 36 | 15 | 40 |
| 279 | Physiology | 1 | 35 | 36.7K | 39.2K |
| 279 | Nuclear Physics | 3 | 35 | 6.0K | 7.7K |
| 279 | Chemical processes | 1 | 35 | 1.7K | 1.3K |
| 282 | Artificial Intelligence | 4 | 33 | 5.2K | 10.7K |
| 282 | Kinetics | 3 | 33 | 520 | 1.0K |
| 282 | Petrology | 1 | 33 | 1.2K | 1.3K |
| 282 | Chemical kinetics | 3 | 33 | 907 | 1.0K |
| 286 | Geographic information systems | 4 | 32 | 661 | 1.7K |
| 287 | Biogeochemistry | 2 | 31 | 1.4K | 2.9K |
| 287 | Bioinorganic chemistry | 2 | 31 | 2.9K | 4.7K |
| 287 | economic policy | 1 | 31 | 4.0K | 2.9K |
| 287 | Business | 1 | 31 | 2.2K | 1.8K |
| 291 | Bacteriology | 1 | 30 | 7.2K | 9.5K |
| 291 | System analysis | 3 | 30 | 3.0K | 5.1K |
| 291 | Earth Sciences | 4 | 30 | 3.0K | 6.3K |
| 291 | Detectors | 3 | 30 | 1.8K | 2.9K |
| 295 | Computer-Aided Design | 2 | 29 | 1.5K | 2.5K |
| 296 | Computer Engineering | 3 | 28 | 166 | 319 |
| 297 | Superconductivity | 3 | 26 | 138 | 291 |
| 297 | Mycology | 1 | 26 | 4.7K | 5.2K |
| 297 | Sound | 2 | 26 | 1.3K | 1.7K |
| 297 | Fungi | 1 | 26 | 2.2K | 2.7K |
| 301 | Ultrasonics | 1 | 25 | 2.6K | 3.9K |
| 301 | nucleic acids | 1 | 25 | 15.8K | 24.8K |
| 301 | Heat | 5 | 25 | 13 | 33 |
| 301 | Ultrasound | 1 | 25 | 1.3K | 1.6K |
| 301 | Radio frequency | 1 | 25 | 1.0K | 929 |
| 306 | optical devices | 1 | 24 | 935 | 870 |
| 307 | Epidemiology | 1 | 23 | 24.6K | 28.5K |
| 307 | epidemiologic methods | 1 | 23 | 405 | 412 |
| 307 | enzymes | 2 | 23 | 3.5K | 8.0K |
| 310 | Quality Control | 2 | 22 | 2.0K | 3.7K |
| 310 | Statistical Mechanics | 2 | 22 | 1.1K | 1.2K |
| 310 | Tunneling | 1 | 22 | 9 | 29 |
| 310 | underground construction | 1 | 22 | 9 | 29 |
| 310 | Convergence | 2 | 22 | 54 | 324 |
| 315 | Adhesion | 2 | 21 | 516 | 1.0K |
| 315 | Photobiology | 7 | 21 | 211 | 2.7K |
| 315 | visualization | 13 | 21 | 450 | 4.8K |
| 315 | adhesives | 2 | 21 | 536 | 1.1K |
| 319 | Operations Research | 3 | 20 | 2.3K | 4.3K |
| 319 | sustainable growth | 2 | 20 | 14 | 117 |
| 319 | Chemical industry | 1 | 20 | 4.1K | 4.0K |
| 322 | Structural dynamics | 1 | 19 | 1.6K | 2.2K |
| 322 | Pharmaceutical Chemistry | 2 | 19 | 18.1K | 35.6K |
| 322 | Water quality management | 1 | 19 | 5.5K | 6.4K |
| 322 | water resources | 1 | 19 | 256 | 357 |
| 322 | Graphene | 2 | 19 | 72 | 386 |
| 322 | Proteome | 1 | 19 | 8.3K | 15.7K |
| 328 | Structural Engineering | 3 | 18 | 1.3K | 2.5K |
| 328 | Public Health | 1 | 18 | 37.0K | 45.2K |
| 328 | Green Technology | 1 | 18 | 741 | 1.1K |
| 328 | Thin Films | 2 | 18 | 636 | 1.3K |
| 332 | Gene expression regulation | 1 | 17 | 6.0K | 9.8K |
| 332 | Genetic regulation | 1 | 17 | 7.9K | 14.5K |
| 332 | Finite Element Method | 1 | 17 | 47 | 83 |
| 335 | ecosystem | 1 | 16 | 3.8K | 6.6K |
| 336 | supercritical fluids | 2 | 15 | 65 | 372 |
| 336 | Microwaves | 2 | 15 | 2.1K | 2.9K |
| 338 | Aerospace Engineering | 1 | 14 | 567 | 547 |
| 338 | Occupational Health | 1 | 14 | 3.6K | 4.4K |
| 338 | industrial hygiene | 1 | 14 | 3.4K | 4.0K |
| 338 | Chemical safety | 1 | 14 | 80 | 54 |
| 342 | Hydraulic Engineering | 1 | 13 | 1.3K | 2.0K |
| 342 | ports | 1 | 13 | 261 | 528 |
| 342 | Waterways | 1 | 13 | 86 | 199 |
| 342 | Harbors | 1 | 13 | 122 | 232 |
| 342 | cell physiology | 1 | 13 | 12.7K | 23.3K |
| 347 | Petroleum Engineering | 2 | 12 | 379 | 970 |
| 347 | Statistics | 1 | 12 | 9.4K | 11.3K |
| 347 | Soil | 1 | 12 | 297 | 705 |
| 347 | Soviet Union | 2 | 12 | 636 | 1.3K |
| 351 | Computer Graphics | 2 | 10 | 1.5K | 4.3K |
| 351 | hazard mitigation | 2 | 10 | 935 | 3.1K |
| 351 | public works | 1 | 10 | 188 | 366 |
| 351 | mammals | 1 | 10 | 3.1K | 5.1K |
| 355 | Computer Science | 2 | 9 | 3.3K | 7.6K |
| 355 | Broadcasting | 2 | 9 | 109 | 412 |
| 355 | energy transfer | 1 | 9 | 25 | 23 |
| 355 | Microstructure | 2 | 9 | 147 | 442 |
| 355 | Quantum theory | 2 | 9 | 808 | 1.9K |
| 355 | pigments | 1 | 9 | 41 | 133 |
| 361 | Systems Engineering | 7 | 8 | 1.4K | 8.2K |
| 361 | Plasma chemistry | 1 | 8 | 1.0K | 2.0K |
| 361 | Plasma polymerization | 1 | 8 | 661 | 1.5K |
| 361 | Japan | 1 | 8 | 8.5K | 11.0K |
| 365 | Algorithms | 1 | 7 | 1.4K | 2.1K |
| 365 | Computational Fluid Dynamics | 1 | 7 | 708 | 1.2K |
| 365 | Technological Innovations | 1 | 7 | 2.6K | 5.0K |
| 368 | International Relations | 1 | 6 | 2.1K | 2.9K |
| 368 | Wireless Communication Systems | 1 | 6 | 4.9K | 6.8K |
| 368 | Synchrotron Radiation | 1 | 6 | 616 | 1.2K |
| 368 | management | 1 | 6 | 5.1K | 9.1K |
| 368 | strategy | 1 | 6 | 275 | 377 |
| 368 | synthesis | 1 | 6 | 2.8K | 4.2K |
| 368 | Commercial vehicles | 1 | 6 | 1 | 1 |
| 368 | Extreme environments | 1 | 6 | 577 | 1.4K |
| 376 | Adaptive control systems | 1 | 5 | 1.4K | 2.4K |
| 376 | Entropy | 1 | 5 | 3.7K | 6.4K |
| 376 | Product life cycle | 2 | 5 | 291 | 1.2K |
| 376 | green products | 2 | 5 | 258 | 1.1K |
| 376 | Microwave devices | 1 | 5 | 737 | 1.2K |
| 381 | Hydrology | 1 | 4 | 8.3K | 15.8K |
| 381 | Raman spectroscopy | 1 | 4 | 1.5K | 3.8K |
| 381 | actuators | 1 | 4 | 2.3K | 5.1K |
| 381 | Medical innovations | 1 | 4 | 6.9K | 18.4K |
| 381 | scientific research | 1 | 4 | 133 | 204 |
| 381 | biomimicry | 1 | 4 | 260 | 837 |
| 381 | transducers | 1 | 4 | 2.3K | 5.1K |
| 388 | Structural optimization | 1 | 3 | 768 | 1.6K |
| 388 | Smart Materials | 1 | 3 | 1.8K | 3.9K |
| 388 | Coatings | 1 | 3 | 101 | 112 |
| 388 | Intelligent Control Systems | 1 | 3 | 3.2K | 5.5K |
| 388 | Luminescence | 1 | 3 | 1.6K | 3.4K |
| 388 | atmosphere | 1 | 3 | 491 | 1.2K |
| 388 | Paint | 1 | 3 | 25 | 72 |
| 388 | Testing | 1 | 3 | 94 | 202 |
| 396 | Zoology | 1 | 2 | 9.0K | 18.2K |
| 396 | Hydrogeology | 1 | 2 | 2.2K | 5.5K |
| 396 | Internet of Things | 1 | 2 | 2.0K | 3.4K |
| 396 | Computer Architecture | 2 | 2 | 132 | 567 |
| 396 | Geothermal Energy | 1 | 2 | 18 | 139 |
| 396 | emergency management | 1 | 2 | 1.7K | 4.5K |
| 396 | internet | 1 | 2 | 2.6K | 5.4K |
| 396 | Entomology | 1 | 2 | 7.1K | 14.0K |
| 404 | environmental justice | 1 | 1 | 101 | 557 |
| 404 | social justice | 1 | 1 | 471 | 1.6K |
| 404 | Welding | 1 | 1 | 329 | 718 |
| 404 | Molecules | 1 | 1 | 3.3K | 6.9K |
| 404 | Chemical structure | 1 | 1 | 1.2K | 2.5K |
| 404 | Neutrons | 1 | 1 | 41 | 132 |
| 404 | Radiometry | 2 | 1 | 75 | 189 |
| 404 | Aquaculture | 1 | 1 | 2.2K | 5.1K |
| 412 | Environmental Science | 1 | 0 | 22 | 278 |
| 412 | Transportation Engineering | 1 | 0 | 639 | 1.9K |
| 412 | Architecture | 1 | 0 | 1.6K | 4.8K |
| 412 | Robotics | 1 | 0 | 4.6K | 10.0K |
| 412 | Numerical Analysis | 1 | 0 | 6.1K | 11.6K |
| 412 | Geochemistry | 1 | 0 | 3.2K | 7.4K |
| 412 | Geomagnetism | 1 | 0 | 1.5K | 3.4K |
| 412 | greenhouse effect | 1 | 0 | 60 | 282 |
| 412 | Politics | 1 | 0 | 783 | 2.2K |
| 412 | Animal ecology | 1 | 0 | 3.6K | 8.0K |
| 412 | nuclear power | 1 | 0 | 317 | 980 |
| 412 | Carbon | 1 | 0 | 219 | 844 |
| 412 | Carbon dioxide | 1 | 0 | 60 | 282 |
| 412 | government | 1 | 0 | 1.2K | 3.2K |
| 412 | Climate | 1 | 0 | 986 | 3.1K |
| 412 | Decision making | 1 | 0 | 4.5K | 13.1K |
| 412 | natural disasters | 1 | 0 | 2.6K | 6.1K |
| 412 | Agriculture | 1 | 0 | 7.4K | 17.0K |
