| effective mass | 66 | 13 | 5.417 | 0.006471 | 1908.07348,1908.02855,etc |
| porous medium | 129 | 12 | 9.455 | 0.006423 | 1908.09818,1908.10601,etc |
| electrical conductivity | 78 | 14 | 5.923 | 0.004544 | 1908.04119,1908.04215,etc |
| laser light | 48 | 16 | 3.133 | 0.004162 | 1908.11442,1908.00725,etc |
| band structure | 83 | 21 | 4.1 | 0.004049 | 1908.05379,1908.05208,etc |
| neural network | 221 | 43 | 5.238 | 0.003696 | 1908.02067,1908.09908,etc |
| network science | 45 | 16 | 2.933 | 0.00314 | 1908.08991,1908.03811,etc |
| water molecule | 78 | 16 | 5.0 | 0.003114 | 1908.01719,1908.04668,etc |
| single atom | 39 | 13 | 3.167 | 0.002878 | 1908.11442,1908.03908,etc |
| + right | 73 | 11 | 7.2 | 0.002868 | 1908.04074,1908.04256,etc |
| measurement point | 26 | 11 | 2.5 | 0.002668 | 1908.05463,1908.11644,etc |
| volume fraction | 105 | 22 | 4.952 | 0.002629 | 1908.00250,1908.04529,etc |
| social network | 61 | 23 | 2.682 | 0.002579 | 1908.08429,1908.11583,etc |
| Rydberg state | 62 | 16 | 3.733 | 0.002471 | 1908.11442,1908.08343,etc |
| optical mode | 40 | 11 | 3.8 | 0.002468 | 1908.03908,1908.00871,etc |
| degree distribution | 137 | 29 | 4.071 | 0.002458 | 1908.08429,1908.03875,etc |
| multilayer network | 69 | 14 | 5.231 | 0.002418 | 1908.00920,1908.03875,etc |
| drag force | 27 | 12 | 2.364 | 0.002386 | 1908.02224,1908.10658,etc |
| alpha particle | 48 | 12 | 4.182 | 0.002353 | 1908.00815,1908.02494,etc |
| flow rate | 114 | 25 | 4.625 | 0.00235 | 1908.03540,1908.00250,etc |
| energy resolution | 85 | 24 | 3.348 | 0.002299 | 1908.09136,1908.08117,etc |
| community detection | 47 | 13 | 3.667 | 0.002266 | 1908.03875,1908.03811,etc |
| grid cell | 55 | 15 | 3.786 | 0.002215 | 1908.03634,1908.04529,etc |
| United States | 45 | 14 | 3.308 | 0.002207 | 1908.08991,1908.00920,etc |
| Green' function | 83 | 20 | 4.316 | 0.00217 | 1908.00886,1908.05172,etc |
| complex network | 111 | 28 | 4.074 | 0.002148 | 1908.08429,1908.03811,etc |
| item We | 50 | 12 | 3.636 | 0.002117 | 1908.06043,1908.01473,etc |
| friction velocity | 44 | 11 | 4.3 | 0.00209 | 1908.05463,1908.09487,etc |
| charge transfer | 33 | 11 | 3.2 | 0.002074 | 1908.06898,1908.09351,etc |
| current flow | 36 | 11 | 3.5 | 0.002068 | 1908.06898,1908.04127,etc |
| laser field | 50 | 18 | 2.882 | 0.002057 | 1908.05379,1908.06467,etc |
| vibrational state | 31 | 13 | 2.417 | 0.002021 | 1908.03162,1908.11839,etc |
| unit cell | 121 | 33 | 3.75 | 0.002008 | 1908.05379,1908.02736,etc |
| inertial range | 57 | 14 | 4.231 | 0.002003 | 1908.00880,1908.06474,etc |
| Reynolds number | 205 | 51 | 4.08 | 0.001993 | 1908.03540,1908.00250,etc |
| objective function | 100 | 22 | 3.952 | 0.001991 | 1908.04127,1908.10253,etc |
| paraxial approximation | 33 | 11 | 3.1 | 0.001947 | 1908.01473,1908.11520,etc |
| detection efficiency | 59 | 25 | 2.375 | 0.001938 | 1908.08117,1908.09351,etc |
| optical fiber | 35 | 17 | 2.125 | 0.001925 | 1908.06898,1908.07745,etc |
| building block | 52 | 19 | 2.833 | 0.00188 | 1908.05463,1908.10386,etc |
| real network | 28 | 13 | 2.167 | 0.001835 | 1908.08429,1908.03875,etc |
| transition point | 32 | 11 | 3.1 | 0.001834 | 1908.05462,1908.01511,etc |
| laser pulse | 126 | 33 | 3.875 | 0.001827 | 1908.05379,1908.06467,etc |
| repetition rate | 58 | 29 | 2.036 | 0.001815 | 1908.01879,1908.05152,etc |
| shear modulus | 56 | 15 | 3.786 | 0.001803 | 1908.00464,1908.01568,etc |
| incident field | 56 | 18 | 3.235 | 0.001801 | 1908.01049,1908.05172,etc |
| heat transport | 39 | 12 | 3.455 | 0.001783 | 1908.08415,1908.02896,etc |
| physical space | 32 | 16 | 2.067 | 0.001767 | 1908.10386,1908.01840,etc |
| stochastic model | 25 | 11 | 2.4 | 0.001707 | 1908.00920,1908.03499,etc |
| room temperature | 170 | 82 | 2.086 | 0.001702 | 1908.06564,1908.06898,etc |
| rare event | 42 | 12 | 3.727 | 0.001702 | 1908.04846,1908.03747,etc |
| structural property | 30 | 13 | 2.333 | 0.001666 | 1908.08429,1908.03931,etc |
| free surface | 52 | 19 | 2.833 | 0.00166 | 1908.09201,1908.04256,etc |
| boundary condition | 501 | 166 | 2.8 | 0.001644 | 1908.03634,1908.03540,etc |
| direct numerical simulation | 54 | 26 | 2.12 | 0.001637 | 1908.05463,1908.04838,etc |
| power law | 115 | 43 | 2.714 | 0.001628 | 1908.05555,1908.06898,etc |
| bottom wall | 41 | 11 | 4.0 | 0.001615 | 1908.03540,1908.05462,etc |
| turbulent kinetic energy | 34 | 11 | 3.3 | 0.001614 | 1908.09487,1908.10073,etc |
| rotation angle | 46 | 13 | 3.75 | 0.001607 | 1908.08343,1908.08120,etc |
| surface tension | 70 | 21 | 3.35 | 0.001607 | 1908.00537,1908.03745,etc |
| band gap | 99 | 31 | 3.2 | 0.001575 | 1908.05379,1908.05208,etc |
| atomistic simulation | 34 | 12 | 3.0 | 0.001544 | 1908.05090,1908.02038,etc |
| resonance frequency | 115 | 36 | 3.257 | 0.001534 | 1908.09904,1908.11442,etc |
| cavity mode | 46 | 15 | 3.143 | 0.001532 | 1908.11442,1908.10932,etc |
| laser system | 27 | 12 | 2.364 | 0.001522 | 1908.06467,1908.10058,etc |
| square lattice | 27 | 12 | 2.273 | 0.001506 | 1908.05555,1908.05144,etc |
| Newtonian fluid | 37 | 14 | 2.769 | 0.001502 | 1908.04119,1908.00798,etc |
| cost function | 94 | 27 | 3.462 | 0.001491 | 1908.02067,1908.02736,etc |
| topological property | 33 | 14 | 2.462 | 0.001453 | 1908.08429,1908.10512,etc |
| local minimum | 53 | 24 | 2.261 | 0.001451 | 1908.08664,1908.02038,etc |
| potential energy surface | 35 | 16 | 2.267 | 0.001439 | 1908.03916,1908.03499,etc |
| peak intensity | 60 | 26 | 2.28 | 0.001436 | 1908.06467,1908.08728,etc |
| basis function | 98 | 30 | 2.931 | 0.001411 | 1908.03722,1908.03916,etc |
| loss function | 31 | 14 | 2.308 | 0.00141 | 1908.08991,1908.04127,etc |
| community structure | 108 | 15 | 7.571 | 0.001406 | 1908.03875,1908.03318,etc |
| electric field | 474 | 147 | 3.24 | 0.001387 | 1908.02855,1908.05379,etc |
| Monte Carlo simulation | 45 | 22 | 2.095 | 0.001378 | 1908.07348,1908.05555,etc |
| quantum dot | 42 | 18 | 2.412 | 0.00137 | 1908.02855,1908.10471,etc |
| magnetic field strength | 62 | 25 | 2.542 | 0.001366 | 1908.10253,1908.00815,etc |
| modulation frequency | 31 | 12 | 2.636 | 0.001363 | 1908.02156,1908.05367,etc |
| simulation time | 47 | 19 | 2.556 | 0.001355 | 1908.07221,1908.03540,etc |
| ground truth | 59 | 17 | 3.625 | 0.001341 | 1908.08631,1908.03318,etc |
| centrality measure | 41 | 13 | 2.167 | 0.001335 | 1908.11831,1908.00388,etc |
| differential equation | 172 | 83 | 2.085 | 0.001324 | 1908.07348,1908.06564,etc |
| ambient pressure | 22 | 11 | 2.1 | 0.001313 | 1908.04074,1908.07940,etc |
| Supplementary Material | 50 | 22 | 2.333 | 0.001302 | 1908.09904,1908.06103,etc |
| ambient condition | 35 | 16 | 2.267 | 0.001285 | 1908.09904,1908.07481,etc |
| unique solution | 51 | 18 | 2.941 | 0.001285 | 1908.08924,1908.10253,etc |
| coherent structure | 31 | 11 | 3.0 | 0.001283 | 1908.09487,1908.00372,etc |
| analytical model | 65 | 23 | 2.909 | 0.001271 | 1908.09908,1908.02546,etc |
| shear flow | 63 | 17 | 3.75 | 0.001268 | 1908.00250,1908.01936,etc |
| residence time | 29 | 11 | 2.8 | 0.001268 | 1908.03597,1908.05521,etc |
| optical power | 37 | 15 | 2.571 | 0.001265 | 1908.08685,1908.00756,etc |
| new scheme | 32 | 12 | 2.818 | 0.001263 | 1908.03634,1908.04529,etc |
| bias voltage | 51 | 22 | 2.286 | 0.001255 | 1908.09136,1908.06564,etc |
| velocity fluctuation | 40 | 15 | 2.786 | 0.001231 | 1908.09487,1908.09176,etc |
| external magnetic field | 54 | 26 | 2.12 | 0.001227 | 1908.04713,1908.11277,etc |
| gas phase | 41 | 17 | 2.188 | 0.001197 | 1908.01879,1908.03745,etc |
| laser intensity | 62 | 26 | 2.4 | 0.001188 | 1908.05379,1908.06467,etc |
| vertical velocity | 43 | 16 | 2.667 | 0.001183 | 1908.10836,1908.05463,etc |
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