a quantitative measure of the degree of magnetization of a material in the presence of an applied magnetic field (measured in Newtons per Ampere squared in SI units)
The ability of a material to allow the passage of liquid, such as water, through rocks Permeable materials, such as gravel and sand, allow water to move quickly through them, whereas unpermeable materials, such as clay, don't allow water to flow freely
the ability of a material to allow the passage of a liquid, such as water through rocks Permeable materials, such as gravel and sand, allow water to move quickly through them, whereas unpermeable material, such as clay, don't allow water to flow freely
The capability of a given substance to allow the passage of a fluid Permeability depends on the size of and the degree of connection among a substance's pores
The measure of the flow of water through soil The ease (or measurable rate) with which gasses, liquids, or plant roots penetrate or pass through a layer of soil or porous media The capacity or ability of a porous rock, sediment, or soil to allow the movement of water through its pores
(1) Ability of a material (generally an earth material) to transmit fluids (water) through its pores when subjected to pressure or a difference in head Expressed in units of volume of fluid (water) per unit time per cross section area of material for a given hydraulic head; (2) description of the ease with which a fluid may move through a porous medium; abbreviation of intrinsic permeability It is a property of the porous medium only, in contrast to hydraulic conductivity, which is a property of both the porous medium and the fluid content of the medium
The property of bulk material (sand, crushed rock, soft rock in situ) which permit movement of water through its pores
Ability of a membrane or other material to permit a substance to pass through it
the property or capacity of a soil or rock for transmitting a fluid, usually water; the rate at which a fluid can move through a medium
The property of rock or soil permitting water to pass through it Primary permeability depends on pores between the grains of material Secondary Permeability depends on solutional widening of joints & bedding planes & on other solution cavities Hydrology terms Ref JJ
The ability of geologic material to transmit water In this report, the term is used in the same sense as "hydraulic conductivity "
The capacity or ability of a porous medium, such as rock or soil, to transmit fluid; the rate of diffusion of a fluid under unequal pressure The common unit of measure is the millidarcy (mD)
a quantitative measure of the degree of magnetization of a material in the presence of an applied magnetic field (in terms of for instance, Newtons per square Amperes in SI units)
The capacity of a rock or stratum to allow water or other fluids, such as oil, to pass through it
Refers to a membrane through which a specified molecule, ion, or other solute can pass freely (Latin permeare, to pass through)
A soil characteristic that enables water or air to move through the profile, measured as the number of inches per hour that water moves down ward through the saturated soil The rate at which water moves through the least permeable layer governs soil permeability
(1) passage or diffusion of a gas, vapor, liquid, or solid through a material without physically or chemically affecting it; (2) term used to express various relationships between magnetic induction and magnetizing force; either absolute permeability or specific (relative) permeability
The ability of an aquifer or water-bearing formation to allow water to pass through it Permeability is also known as effective porosity because it is a function of interconnected saturated pore spaces
The capacity of a substance (such as rock) to transmit a fluid The degree of permeability depends on the number, size, and shape of the pores and/or fractures in the rock and their interconnections It is measured by the time it takes a fluid of standard viscosity to move a given distance The unit of permeability is the Darcy
the property of something that can be pervaded by a liquid (as by osmosis or diffusion)
A measure of the ability of soil, sediments, and rock to transport water horizontally and vertically Permeability is dependent on the porosity of the medium the water is flowing through Some rocks like granite have very poor permeability, while rocks like shale are actually quite pervious As for soils, sand is the most pervious, while clay has the lowest permeability Silt usually is somewhere in the middle
a measure of the magnetisation of a material in a magnetic field; symbol μ. Materials with values less than 1 are diamagnetic those above are paramagnetic
The ability of a substance to acquire high magnetization in relatively weak magnetic fields. Relative increase or decrease in the magnetic field inside a material compared with the magnetic field in which the material is located. In empty space the magnetic permeability is 1, because there is no matter to modify the field. Materials may be classified by the value of their magnetic permeability. Diamagnetic materials (see diamagnetism) have constant relative permeabilities of slightly less than
The relative permeability of ferromagnetic materials (see ferromagnetism) increases as the magnetizing field increases, reaches a maximum, and then decreases. Pure iron and some alloys have relative permeabilities of 100,000 or more
Permeability is a measure of the ease with which a fluid will move through a porous material (e g , sand and gravel or rock) A geologic unit is permeable if ground water moves easily through it
Capable of being permeated, or passed through; yielding passage; passable; penetrable; used especially of substances which allow the passage of fluids; as, wood is permeable to oil; glass is permeable to light
If a substance is permeable, something such as water or gas can pass through it or soak into it. A number of products have been developed which are permeable to air and water. impermeable. material that is permeable allows water, gas etc to pass through it impermeable