| It is this alteration in the diffusivity of the mesopause region that allows structures in the electron density to persist at observable scales. |
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| Such drop in electron thermal diffusivity at the positive shear region was also observed in the high beta-p mode plasmas at high triangularity. |
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| The normal diffusivity of the ions is in accord with the high activity of water in the channel. |
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| Steady-state diffusion of water along the two defined pathways depends on the concentration gradient and on the diffusivity of the substance. |
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| Groundwater gradients may take extremely long periods to equilibrate to significant changes in surface pressures, depending on the hydraulic diffusivity of the rock mass. |
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| Note that the assumption the v is relatively large is equivalently to the assumption that the thermal diffusivity. |
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