Estimation of the Sorption Activity of Silver Nanoparticles on Biodegradable Fibers of Natural and Artificial Origin

Russian Physics Journal - The specific features of the sorption activity of silver nanoparticles (AgNPs) on biodegradable polymers of natural (collagen) and artificial (polyamide 6.6) origin have...     

Simplicity of the branching of representations of the groups GL(<Emphasis Type="Italic">n,q</Emphasis>) under the parabolic restriction: An elementary proof

It is well known that the branching of representations of the groups GL(n, q) under the parabolic restriction is simple. Apparently, an elementary proof of this important fact has not been found so far. We present such a proof, which uses a method not standard for the representation theory of finite groups.     

Sorption Activity of Silver Nanoparticles

Russian Physics Journal - The absorption activity of silver nanoparticles (AgNPs) on the surface of fibers of natural and artificial origin is estimated. In addition, it is determined that the...     

The simplicity of the branching of principal series representations of the groups <Emphasis Type="Italic">GL</Emphasis>(<Emphasis Type="Italic">n,q</Emphasis>) under the parabolic restrictions

We consider the parabolic restriction of representations of the group GL(n + 1, q) to the group GL(n, q). The branching of representations under this restriction is simple. We present a direct proof of this fact in the case of the so-called principal series representations. This statement is reduced to the commutativity of the centralizer of the Hecke algebras Z(H(n, q), H(n+1, q)); we prove it using an auxiliary combinatorial theory. Bibliography: 9 titles. __________ Translated from Zapiski Nauchnykh Seminarov POMI, Vol. 331, 2006, pp. 43–59.     

Estimation of the Aggregate Stability of Silver Nanoparticles in a Gel Composition

Russian Physics Journal - The aggregate stability of silver nanoparticles (Ag – NPs) in a gel composition is estimated. It is established that during long-term storage (for 3 years), a...     

Microwave Absorption Properties of Nickel–Zinc Ferrites Synthesized by Different Means

Ferromagnetic resonance (FMR) characteristics are investigated for Ni_xZn_{1 ? x}Fe₂O₄ ferrites (where x = 0.25, 0.5) synthesized using different organic complexation agents. The microstructure of the synthesized ferrites is studied, and the effect complexation agents have on their microstructure and FMR characteristics is determined.