Fibers experimental determination

The foregoing procedure is commonly employed in reverse to determine or confirm fiber target efficiencies from the experimentally determined efficiencies of fibrous filter pads. 

Such a model makes it possible to calculate a change of fibers distribution along the length in the boundary layer. At present, practically the sole approach to the analysis of destruction when the fiber filler flows in the basic mass, outside the boundary layer, is an experimental determination of destruction kinetics for a given pair — fiber filler and polymer. Such dependencies can be obtained with the help of, say, rotary viscosimeters [47],... 

For heterogeneous media composed of solvent and fibers, it was proposed to treat the fiber array as an effective medium, where the hydrodynamic drag is characterized by only one parameter, i.e., Darcy s permeability. This hydrodynamic parameter can be experimentally determined or estimated based upon the structural details of the network [297]. Using Brinkman s equation [49] to compute the drag on a sphere, and combining it with Einstein s equation relating the diffusion and friction coefficients, the following expression was obtained ... 

Estimate only since fiber reinforcement made experimentally determined value (in parenthesis) uncertain. 

Bell, B. W., and W. S. Bickel, 1981. Single fiber light scattering matrix an experimental determination, Appl. Opt., 20, 3874-3879. 

The adhesion of the skin on the experimental fibers was determined using a carrier fabric into which the fibers were woven [4, 8]. A 100% polyester leno weave was used as the carrier fabric. A 2 m length of fiber was stitched into a... 

Experimental determination of the properties of any material is very important. This is particularly true in the case of fibrous materials because general insufficient data are available for them. Fibers have one very long dimension and the other two extremely small. This makes determination of their properties, physical and mechanical, far from trivial. In particular determination of their transverse properties, i.e. in the direction of the fiber diameter, can be difiicult. In this chapter we describe experimental techniques to determine some physical and mechanical properties of fibers. 

FIGURE 8.33 Experimentally determined critical flux for filtration of 5 g/L yeast using vibrating hollow fiber membrane. 

CFD predictions depend on accurate determination of various parameters. For example, in the CFD model developed by Gage et al. [63], the permeability of the fiber bundle was experimentally determined from pressure drop data obtained from water perfusion testing. 

Experimental Determination of Hair Fiber Diameter Changes at Various Humidities... 

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