abstract at present study constant rate of strain (crs) consolidation under non-darcy condition was investigated. in this study a governing conditions of drainage pore water were investigated using proposed equation. the crs experiments under different rates of strain were conducted on different soil samples. results these experiments and there comparison with proposed equation showed that flow...

Electroosmotic flows in axisymmetric capillaries with random zeta potentials were shown in [1] to exhibit axial velocity fluctuations about the mean plug flow. In this note we address the calculation of Taylor dispersion in such flows, and highlight the important differences between cross-sectional averaging (as usually used for dispersion problems) and ensemble averaging (as used in [1]).

DOI: 10.1002/elps.202000086 The cover picture shows the determination of four alkyl sulfate (AS) surfactants (C14, C12, C10, and C8) by capillary electrophoresis (CE) after preconcentration simultaneous adsorption AS on Al2O3 surface. EOF electroosmotic flow (EOF) at high pH pushes move to contactless conductivity detector (C4D). electropherograms show separation in order C14, C8.

A theoretical model of the EOF and hydrodynamic flow in wide closed cylindrical capillaries, after the application of a stepwise voltage, is developed. Analytical expressions have been obtained as a sum of the solutions for the direct flow and backflow in both periodical and aperiodical regimes with arbitrary pulse/pulse or pulse/pause durations and amplitudes. The numerical analysis, performed...