Modern mechanical engineering designs (and some others) make more and more demands on the development of mathematical models of units in which friction is present. A condition that significantly complicates the study ...

We study a class of shear-free, homogeneous but anisotropic cosmological models with imperfect matter sources in the context of f (R) gravity. We show that the anisotropic stresses are related to the electric part of the ...

This article is devoted to solving the problem of converting sign language into a consistent text with intonation markup for subsequent voice synthesis of sign phrases by speech with intonation. The paper proposes an ...

The durability of the targets and entrance window foils of the Dubna gas-filled recoil separator working at high intensive heavy ion beams was considered. The temperature, as a factor determining their durability, was ...

In this article, we examined the Starobinsky gravity model in homogeneous and isotropic space-time described by the Friedman-Robertson-Walker metric. In the framework of this model, cosmological parameters were described ...