effective permeability

effective permeability

[ə¦fek·tiv pər·mē·ə′bil·əd·ē]
(physical chemistry)
The observed permeability exhibited by a porous medium to one fluid phase when there is physical interaction between this phase and other fluid phases present.
References in periodicals archive ?
In Figures 2 and 3, effective permeability and permittivity tensors perpendicular components [[epsilon].
2 to about 5 mm, wherein one or more portion(s) of the absorbent structure comprise (s) at least about 90% by weight of superabsorbent polymer particles and require (s) a time to reach an uptake of about 20 g/g (T20) of less than about 440 s as measured according to the K(t) test method; wherein the superabsorbent polymer particles are comprised in the absorbent core, such that the superabsorbent polymer particles are deposited between a first and a second substrate layer, with the first substrate layer facing towards the backsheet and the second substrate layer facing towards the topsheet wherein the one or more portion(s) of the absorbent structure have an effective permeability at about 20 minutes (K20) of at least about 2.
Thus, the proposed elementary cellule (the SRR and the two micro strip lines) present an effective permeability and permittivity witch verify the Left/Hand aspect of our structure.
The new formulations reveal that the geometrical factor plays a key role in characterizing the real part of the effective permeability and the physical factor contributes to the magnetic loss tangent (MLT) of AMMs.
Similar "inverted" behavior is also observable in the retrieved effective permeability.
The negative effective permeability is obtained by adding series capacitive gaps along the microstrip line as it can be seen in Fig.
The geometric mean is typically used to estimate effective permeability from small-scale samples (Jensen 1991).
Where Peff = effective permeability coefficient (cm/s) and R, L and Q are as previously defined.
The size of the air gap which will be prepared for the coil is also an important factor for specifying effective permeability as well as for not spoiling the homogeneity of the flux passing through the air gap.
to predict the effective permeability coefficients, where [beta] = 0.
o] = original pressure A = surface area of tire innerliner V = contained air volume Q = effective permeability constant of the tire construction T = effective average thickness of the tire components

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