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2. Permeability (materials science) - Wikipedia

   en.wikipedia.org/wiki/Permeability_(Materials...

   The SI unit for permeability is the square metre (m 2).A practical unit for permeability is the darcy (d), or more commonly the millidarcy (md) (1 d ≈ 10 −12 m 2). The name honors the French Engineer Henry Darcy who first described the flow of water through sand filters for potable water supply.

3. Fluid flow through porous media - Wikipedia

   en.wikipedia.org/wiki/Fluid_flow_through_porous...

   The movement of a fluid through porous media is described by the combination of Darcy's law with the principle of conservation of mass in order to express the capillary force or fluid velocity as a function of various other parameters including the effective pore radius, liquid viscosity or permeability. [3]

4. Soil mechanics - Wikipedia

   en.wikipedia.org/wiki/Soil_mechanics

   Vertically upwards seepage is a source of danger on the downstream side of sheet piling and beneath the toe of a dam or levee. Erosion of the soil, known as "soil piping", can lead to failure of the structure and to sinkhole formation. Seeping water removes soil, starting from the exit point of the seepage, and erosion advances upgradient. [17]

5. Darcy's law - Wikipedia

   en.wikipedia.org/wiki/Darcy's_law

   Darcy's law is an equation that describes the flow of a fluid through a porous medium and through a Hele-Shaw cell.The law was formulated by Henry Darcy based on results of experiments [1] on the flow of water through beds of sand, forming the basis of hydrogeology, a branch of earth sciences.

6. Hydraulic conductivity - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_conductivity

   a table showing ranges of values of hydraulic conductivity and permeability for various geological materials. Values are for typical fresh groundwater conditions — using standard values of viscosity and specific gravity for water at 20 °C and 1 atm. See the similar table derived from the same source for intrinsic permeability values. [13]

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Archie's law - Wikipedia

   en.wikipedia.org/wiki/Archie's_law

   In petrophysics, Archie's law is a purely empirical law relating the measured electrical conductivity of a porous rock to its porosity and fluid saturation. It is named after Gus Archie (1907–1978) and laid the foundation for modern well log interpretation, as it relates borehole electrical conductivity measurements to hydrocarbon saturations.

9. Venezuela's opposition decry arrests ahead of anti-Maduro ...

   www.aol.com/news/venezuelas-opposition-decry...

   "Venezuela will be free, I can't guarantee the day or the time. It might be before, during or after January 10, but it will happen." Gonzalez and Machado have repeatedly urged the police and ...