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