We consider the full S-matrix in the scattering giving rise to analogous Hawking radiation in dispersive media.We show the general structure of the scattering in the weak dispersion approximation and discuss some unnoticed features of the primary process, with earphone wire cover a possible generalization of the phenomenology of the Hawking effect.
For years great interest has been taken in the effects of physical phenomena on ionosphere structure.A total solar eclipse was visible in North America on August 21st, 2017.This event offered a great opportunity for remote sensing the ionospheric behavior under the eclipse condition.In this study we investigated the effects of total solar eclipse o
One important problem is utilization of technical hydrolytic lignin (the waste formed in paper-and-pulp and hydrolysis industry).For a practical implementation, the essential task of transforming insoluble hydrolytic lignin into low molecular weight products with high degree of functionalization should be performed.In prospect, these products can s
This research deals with the cut-off term grammatically.That term has been repeated in Arabic grammar and prosody sciences.The research tries to trace the cut-off term in grammar, stopping at four types: cut-off earphone wire cover in exception, cut-off in addition, cut-off in the predicate invalidators, and cut-off in dependencies.The research fou