| black hole | 100 | 12 | 9.0 | 0.013561 | 1901.08439,1901.03569,etc |
| surface wave | 73 | 18 | 4.235 | 0.005371 | 1901.09991,1901.11317,etc |
| critical point | 103 | 26 | 4.08 | 0.004889 | 1901.04346,1901.07466,etc |
| resonant mode | 89 | 15 | 6.143 | 0.004713 | 1901.08789,1901.06684,etc |
| magnetic energy | 116 | 11 | 11.5 | 0.004157 | 1901.02392,1901.09610,etc |
| null model | 120 | 13 | 9.75 | 0.004013 | 1901.04747,1901.07933,etc |
| charge state | 52 | 11 | 5.1 | 0.003861 | 1901.09428,1901.03325,etc |
| time resolution | 86 | 20 | 4.421 | 0.003791 | 1901.03099,1901.04351,etc |
| solar wind | 216 | 21 | 10.7 | 0.003631 | 1901.00143,1901.09823,etc |
| current sheet | 98 | 14 | 7.231 | 0.003499 | 1901.02392,1901.10195,etc |
| correlation function | 80 | 28 | 2.926 | 0.003435 | 1901.05861,1901.07816,etc |
| electric charge | 33 | 15 | 2.143 | 0.003318 | 1901.07771,1901.08670,etc |
| linear stability analysis | 97 | 17 | 6.0 | 0.003011 | 1901.02925,1901.02263,etc |
| Rydberg atom | 77 | 14 | 5.385 | 0.00292 | 1901.08792,1901.03608,etc |
| growth rate | 262 | 46 | 5.711 | 0.002903 | 1901.08831,1901.06471,etc |
| transition rate | 61 | 21 | 2.9 | 0.002837 | 1901.06697,1901.09860,etc |
| charge density | 64 | 22 | 3.0 | 0.002826 | 1901.07771,1901.11317,etc |
| magnetic field | 794 | 155 | 5.149 | 0.002761 | 1901.08792,1901.06684,etc |
| heat capacity | 78 | 17 | 4.812 | 0.002746 | 1901.08439,1901.03770,etc |
| metastable state | 58 | 13 | 4.583 | 0.002647 | 1901.08831,1901.02123,etc |
| laser pulse | 219 | 55 | 4.037 | 0.002616 | 1901.10743,1901.03184,etc |
| probe beam | 48 | 12 | 4.0 | 0.002611 | 1901.03184,1901.01705,etc |
| thermal conductivity | 93 | 25 | 3.833 | 0.002554 | 1901.03770,1901.02925,etc |
| absorption coefficient | 49 | 15 | 3.214 | 0.002553 | 1901.00460,1901.10241,etc |
| molecular dynamic simulation | 42 | 17 | 2.562 | 0.002547 | 1901.03770,1901.06697,etc |
| community structure | 57 | 14 | 3.692 | 0.002529 | 1901.10521,1901.04747,etc |
| magnetic reconnection | 76 | 16 | 4.867 | 0.002453 | 1901.09823,1901.03094,etc |
| thermodynamic limit | 54 | 15 | 3.429 | 0.002363 | 1901.08439,1901.11247,etc |
| cosmic ray | 35 | 15 | 2.357 | 0.002349 | 1901.01839,1901.04351,etc |
| exact solution | 166 | 70 | 2.391 | 0.002313 | 1901.04297,1901.11525,etc |
| transition region | 31 | 12 | 2.727 | 0.002297 | 1901.04346,1901.10195,etc |
| model problem | 36 | 11 | 3.5 | 0.00227 | 1901.10846,1901.04454,etc |
| spectral density | 63 | 18 | 2.176 | 0.002254 | 1901.05769,1901.05861,etc |
| electron dynamic | 38 | 11 | 3.7 | 0.002246 | 1901.02335,1901.11147,etc |
| Green' function | 89 | 16 | 5.733 | 0.002228 | 1901.01047,1901.03132,etc |
| porous medium | 112 | 17 | 6.5 | 0.002222 | 1901.00835,1901.02925,etc |
| power-law distribution | 34 | 11 | 3.3 | 0.002221 | 1901.09629,1901.09823,etc |
| resonance frequency | 104 | 32 | 3.323 | 0.002192 | 1901.06684,1901.00954,etc |
| electron energy | 59 | 15 | 4.143 | 0.002183 | 1901.09428,1901.10980,etc |
| kinetic equation | 44 | 11 | 4.2 | 0.002182 | 1901.03670,1901.03005,etc |
| electric field | 615 | 162 | 3.814 | 0.002173 | 1901.08792,1901.00496,etc |
| deep neural network | 48 | 14 | 3.615 | 0.002159 | 1901.07836,1901.00618,etc |
| symmetric case | 26 | 12 | 2.273 | 0.002149 | 1901.00681,1901.07658,etc |
| phase shift | 113 | 34 | 2.879 | 0.002104 | 1901.07968,1901.05769,etc |
| thin film | 51 | 21 | 2.5 | 0.002101 | 1901.05167,1901.11317,etc |
| optical axis | 47 | 15 | 3.214 | 0.002093 | 1901.02954,1901.11337,etc |
| relative motion | 27 | 12 | 2.364 | 0.00207 | 1901.07466,1901.03392,etc |
| Rydberg state | 68 | 11 | 6.0 | 0.002049 | 1901.08792,1901.10896,etc |
| wave packet | 48 | 16 | 3.067 | 0.002037 | 1901.11525,1901.01990,etc |
| activation function | 82 | 15 | 2.714 | 0.002029 | 1901.07836,1901.00618,etc |
| water molecule | 72 | 21 | 3.25 | 0.002017 | 1901.06697,1901.08138,etc |
| cut-off frequency | 41 | 17 | 2.5 | 0.001995 | 1901.06684,1901.07836,etc |
| atom number | 42 | 11 | 3.5 | 0.001985 | 1901.07816,1901.05391,etc |
| Coulomb interaction | 64 | 19 | 3.5 | 0.00198 | 1901.11317,1901.01047,etc |
| order parameter | 127 | 26 | 4.56 | 0.001971 | 1901.09291,1901.00421,etc |
| unit cell | 111 | 33 | 3.438 | 0.00195 | 1901.00202,1901.01318,etc |
| wave function | 244 | 52 | 4.765 | 0.001915 | 1901.08792,1901.02337,etc |
| short range | 22 | 11 | 2.1 | 0.001911 | 1901.11247,1901.07131,etc |
| photon emission | 34 | 12 | 3.0 | 0.001907 | 1901.09428,1901.03464,etc |
| pressure difference | 54 | 18 | 3.059 | 0.001897 | 1901.00835,1901.06203,etc |
| group velocity | 92 | 28 | 3.222 | 0.001892 | 1901.11525,1901.00289,etc |
| free energy | 139 | 38 | 3.73 | 0.00186 | 1901.09291,1901.04454,etc |
| covariance matrix | 76 | 19 | 3.833 | 0.001852 | 1901.04454,1901.06570,etc |
| flow rate | 86 | 19 | 4.722 | 0.001833 | 1901.00835,1901.07937,etc |
| collision energy | 54 | 13 | 4.417 | 0.001821 | 1901.04468,1901.10212,etc |
| direct numerical simulation | 68 | 31 | 2.2 | 0.001809 | 1901.00202,1901.09610,etc |
| standard error | 44 | 13 | 3.583 | 0.001799 | 1901.00835,1901.09464,etc |
| neural network | 151 | 38 | 4.054 | 0.001788 | 1901.07836,1901.00519,etc |
| dispersion curve | 43 | 12 | 3.636 | 0.001787 | 1901.08789,1901.04159,etc |
| laser intensity | 81 | 25 | 3.333 | 0.001777 | 1901.00954,1901.00610,etc |
| effective mass | 38 | 15 | 2.643 | 0.00177 | 1901.06600,1901.05861,etc |
| aspect ratio | 78 | 22 | 3.667 | 0.001745 | 1901.08269,1901.06203,etc |
| energy level | 121 | 36 | 2.657 | 0.001736 | 1901.08792,1901.02337,etc |
| frequency shift | 39 | 19 | 2.111 | 0.001734 | 1901.07968,1901.00954,etc |
| Reynolds stress | 63 | 13 | 5.167 | 0.001727 | 1901.00787,1901.04613,etc |
| shock wave | 103 | 17 | 4.125 | 0.001726 | 1901.09596,1901.01866,etc |
| Reynolds number | 213 | 56 | 3.836 | 0.001676 | 1901.02954,1901.10350,etc |
| beam energy | 39 | 11 | 3.8 | 0.001675 | 1901.04857,1901.08818,etc |
| external field | 98 | 43 | 2.31 | 0.001654 | 1901.08792,1901.00543,etc |
| event rate | 32 | 15 | 2.071 | 0.001652 | 1901.04346,1901.07836,etc |
| spherical shell | 60 | 13 | 3.0 | 0.00165 | 1901.08439,1901.02777,etc |
| spot size | 32 | 13 | 2.583 | 0.00165 | 1901.01705,1901.10176,etc |
| liquid water | 30 | 12 | 2.636 | 0.001645 | 1901.03770,1901.08138,etc |
| heat flux | 130 | 25 | 4.792 | 0.001622 | 1901.06203,1901.02925,etc |
| real network | 57 | 14 | 4.154 | 0.001606 | 1901.04747,1901.07933,etc |
| Green function | 32 | 12 | 2.636 | 0.001606 | 1901.07771,1901.11317,etc |
| point charge | 40 | 12 | 3.364 | 0.001605 | 1901.11317,1901.08815,etc |
| linear system | 122 | 40 | 3.051 | 0.001604 | 1901.08269,1901.07937,etc |
| inverse problem | 78 | 20 | 3.684 | 0.001575 | 1901.00543,1901.07937,etc |
| energy resolution | 123 | 30 | 4.207 | 0.001573 | 1901.04346,1901.01286,etc |
| community detection | 60 | 12 | 4.818 | 0.001536 | 1901.10521,1901.04747,etc |
| refractive index | 126 | 51 | 2.48 | 0.001529 | 1901.02777,1901.05381,etc |
| reference frame | 82 | 24 | 3.478 | 0.001527 | 1901.11525,1901.08831,etc |
| network structure | 80 | 24 | 3.304 | 0.001525 | 1901.04747,1901.07836,etc |
| chemical reaction | 65 | 26 | 2.52 | 0.001497 | 1901.00835,1901.02263,etc |
| quantum dot | 31 | 14 | 2.231 | 0.001494 | 1901.04239,1901.05861,etc |
| surface temperature | 30 | 13 | 2.417 | 0.001486 | 1901.06471,1901.10977,etc |
| degree distribution | 54 | 16 | 3.2 | 0.001481 | 1901.08229,1901.08594,etc |
| mathematical model | 52 | 24 | 2.174 | 0.001475 | 1901.02337,1901.04297,etc |
| limit cycle | 64 | 12 | 5.273 | 0.001473 | 1901.07372,1901.03670,etc |
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