permeability

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permeability

 [per″me-ah-bil´ĭ-te]
the property or state of being permeable.

per·me·a·bil·i·ty

(per'mē-ă-bil'i-tē),
The property of being permeable.

permeability

/per·me·a·bil·i·ty/ (per″me-ah-bil´ĭ-te) the property or state of being permeable.

permeability

[pur′mē·əbil′itē]
Etymology: L, permeare, to pass through
the degree to which one substance allows another substance to pass through it. See also capillary permeability, magnetic permeability, osmosis. permeable, adj.

per·me·a·bil·i·ty

(pĕr'mē-ă-bil'i-tē)
The property of being permeable.

permeability

passage of substances through a membrane
  • increased vascular permeability capillary state in acute inflammation; larger gaps appear between tunica intima cells, permitting passage of large molecules (e.g. plasma proteins) and cells (e.g. neutrophils, macrophages, fibroblasts, platelets and sometimes erythrocytes) from the capillary into the tissue spaces

  • vascular permeability passage of small molecules (e.g. water, oxygen, carbon dioxide and glucose) into and out of the capillary; normal state, permitting tissue respiration

per·me·a·bil·i·ty

(pĕr'mē-ă-bil'i-tē)
The property of being penetrable.

permeability (pur´mēəbil´itē),

n the degree to which one substance allows another substance to pass through it.

permeability

the level or degree of the state of being permeable.
References in periodicals archive ?
w], m/s) of the 5 soils was first estimated from intrinsic permeabilities obtained in the gas flow experiments using Eqn 8:
It is clear that the 5 soils tested exhibited a relatively wide range of permeabilities, with P-Q curve slopes ranging from 3.
A simple correlation between permeabilities and mercury capillary pressure.
The apparatus described allows for the quick determination of paint film permeabilities.
The basic procedure can be easily extended to handle materials with both higher and lower permeabilities than those already tested.
The authors acknowledge a referee's suggested reference (8) of a similar procedure for measuring permeabilities of polymeric materials to a high-pressure gas.
The apparatus developed allows for the quick determination of paint film permeabilities, not only because the conductivity values are acquired each second using a computer, but also due to the permeation cell design, which uses a minimal lower chamber volume and thus a maximum sensitivity.
The effects of draw ratio and draw temperature on neat polymer permeabilities and blend permeabilities are shown in Figs.
If the objective is to obtain tires with different permeabilities of the innerliner compounds and the same rate of pressure loss (k), then K must be constant.