Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Barna, Imre Ferenc"'
Publikováno v:
Universe 2023, 9(10), 431
We present a dark fluid model described as a non-viscous, non-relativistic, rotating, and self-gravitating fluid. We assumed that the system has spherical symmetry and the matter can be described with the polytropic equation of state. The induced cou
Externí odkaz:
http://arxiv.org/abs/2303.03792
Autor:
Barna, Imre Ferenc1 (AUTHOR) barna.imre@wigner.hun-ren.hu, Mátyás, László2 (AUTHOR) matyaslaszlo@uni.sapientia.ro
Publikováno v:
Mathematics (2227-7390). Oct2024, Vol. 12 Issue 20, p3298. 12p.
We investigate the usage of a Schlieren imaging setup to measure the geometrical dimensions of a plasma channel in atomic vapor. Near resonant probe light is used to image the plasma channel in a tenuous vapor and machine learning techniques are test
Externí odkaz:
http://arxiv.org/abs/2205.12731
Autor:
Barna, Imre Ferenc, Mátyás, László
Publikováno v:
Mathematics 10, 3281 (2022)
We study the diffusion equation with an appropriate change of variables. This equation is in general a partial differential equation (PDE). With the self-similar and related Ansat\"atze we transform the PDE of diffusion to an ordinary differential eq
Externí odkaz:
http://arxiv.org/abs/2204.04895
Autor:
Barna, Imre Ferenc, Mátyás, László
Publikováno v:
Asian Journal of Research and Reviews in Physics 4(1): 14-26, 2021; Article no.AJR2P.64107
In this article we investigate the two-dimensional incompressible rotating and stratified, just rotating, just stratified Euler equations with each other and with the normal Euler equations with the self-similar Ansatz. There are analytic solutions a
Externí odkaz:
http://arxiv.org/abs/2006.03303
Nowadays the development of novel particle accelerators is a hot topic for both experimental and theoretical sciences. In the CERN-AWAKE experiment electrons are accelerated in a cold rubidium plasma, generated by a short, intense laser pulse. We des
Externí odkaz:
http://arxiv.org/abs/1908.10918
Publikováno v:
Springer Proceedings in Mathematics & Statistics, volume 333, pp 239-253, 2020
The one-dimensional Kardar-Parisi-Zhang dynamic interface growth equation with the traveling-wave Ansatz is analyzed. As a new feature additional analytic terms are added. From the mathematical point of view, these can be considered as various noise
Externí odkaz:
http://arxiv.org/abs/1908.09615
Publikováno v:
Fluid Dyn. Res. 52 015515, 2020
The simplest model to couple the heat conduction and Navier-Stokes equations together is the Oberbeck-Boussinesq(OB)system which were investigated by E.N. Lorenz and opened the paradigm of chaos. In our former studies - Chaos, Solitons and Fractals 7
Externí odkaz:
http://arxiv.org/abs/1905.03686
Publikováno v:
Atoms 2023, 11, 74
We present ionization cross sections for antiproton and helium collisions based on ab-initio time-dependent coupled channel method. In our calculations a finite basis set of regular helium Coulomb wave packets and Slater function were used. The semic
Externí odkaz:
http://arxiv.org/abs/1904.01856
Publikováno v:
Volume 25, Issue 2, 241-256, 2020
The one-dimensional Kardar-Parisi-Zhang dynamic interface growth equation with the self-similar Ansatz is analyzed. As a new feature additional analytic terms are added. From the mathematical point of view, these can be considered as various noise di
Externí odkaz:
http://arxiv.org/abs/1904.01838