intrinsic permeability

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• intrinsic permeability —    See permeability, intrinsic …   Lexicon of Cave and Karst Terminology

• Permeability (earth sciences) — Permeability in the earth sciences (commonly symbolized as κ , or k ) is a measure of the ability of a material (typically, a rock or unconsolidated material) to transmit fluids. It is of great importance in determining the flow characteristics… …   Wikipedia

• permeability, relative —    1. The ratio of the effective permeability for a given flow phase to the intrinsic permeability of the porous medium [22].    2. The ratio of the effective and specific permeabilities [22].    3. The ratio of permeability of one immiscible… …   Lexicon of Cave and Karst Terminology

• permeability —    See hydraulic conductivity; permeability, intrinsic …   Lexicon of Cave and Karst Terminology

• Intrinsic impedance — In problems of electromagnetic wave propagation in a transmission medium, the electromagnetic impedance, also known as the intrinsic impedance, is defined as the ratio of the electric to magnetic field amplitudes::eta = {E over H}For a region… …   Wikipedia

• permeability, intrinsic —    1. A measure of the ability of a medium to transmit a fluid through a porous medium. It is a function of the medium only and is proportional to the mean grain size diameter.    2. A measure of the relative ease with which a porous medium can… …   Lexicon of Cave and Karst Terminology

• Vacuum permeability — This article is about the magnetic constant. For the analogous electric constant, see vacuum permittivity. Vacuum permeability, permeability of free space, or magnetic constant is an ideal, (baseline) physical constant, which is the value of… …   Wikipedia

• Major intrinsic proteins — Major intrinsic protein Structure of a glycerol conducting channel.[1] Identifiers Symbol M …   Wikipedia

• Hydraulic conductivity — Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the intrinsic permeability of the material… …   Wikipedia

• Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …   Wikipedia

• Permeation — Permeation, in physics and engineering, is the penetration of a permeate (such as a liquid, gas, or vapor) through a solid, and is related to a material s intrinsic permeability. Permeability is tested by permeation measurement, for example by a… …   Wikipedia