English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Conditions on the elastic stiffnesses of anisotropic crystals are derivedsuch that circularly polarized longitudinal inhomogeneous plane waves with anisotropic slowness bivector may propagate for any given direction of the normalto the sagittal plane. Once this direction is chosen, then the wave speed, thedirection of propagation, and the direction of attenuation are expressed interms of the mass density, the elastic stiffnesses, and the angle between thenormal to the sagittal plane and the normals (also called "optic axes") to theplanes of central circular section of a certain ellipsoid. In the special casewhere this angle is zero, and in this special case only, such waves cannotpropagate.

Inhomogeneous "longitudinal" circularly-polarized plane waves in anisotropic elastic crystals