anisotropy

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anisotropy

 [an″i-sot´ro-pe]
the quality of being anisotropic.
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The pressure anisotropies defined earlier in different axis depend on the behaviours of skewness parameters, whereas the dark energy density [[rho].sup.de] depends on the barotropic equation of state [epsilon] (Figure 8).
But polarization codiscoverer Erik Leitch (University of Chicago) cautions that those studies assume the anisotropies indeed date from about 400,000 years after the Big Bang, when matter cooled enough for atoms to form, allowing radiation to fly freely through space for the first time.
In: Microwave Background Anisotropies. Proceedings of the XVIth Moriond Astrophysics Meeting, Les Arcs, Savoie, France, March 16-23, 1996, Gif-sur-Yvette: Editions Frontieres, 1997; see also arXiv: astro-ph/9609034.
Higher molecular in-plane orientation caused higher anisotropies in dielectric constants.
These slight deviations, or anisotropies, are about to produce a new wave of fundamental cosmic revelations.
The good news is that scientists havereported three measurements that could be one sort of the desired anisotropies. More work is necessary to find out if they are the real things, but one of the experts in the field, David Wilkinson of Princeton (N.J.) University, comments: "It smells as though we're getting close to anisotropy, close to a real detection."
There are several physical reasons, theoretical and experimental, that could justify a search for anisotropies in light propagation.
The most important conclusion that can be drawn from the results of this work is that the crystallinity in regenerated cellulose is closely related to both microhardness and optical anisotropies. Especially microhardness measurement of polymers, scarcely used but simple and rapid technique, is an optimum procedure for providing information on the molecular orientation.
In December 1992 this group announced that they had found anisotropies that agreed closely with the COBE data.
Values for the optical anisotropies of several monomer groups are found in Van Krevelen (18).