Zobrazeno 1 - 10
of 418
pro vyhledávání: '"P. Kandus"'
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVI-4-W2-2021, Pp 133-138 (2021)
Synthetic Aperture Radar (SAR) images are a valuable tool for wetlands monitoring since they are able to detect water below the vegetation. Furthermore, SAR images can be acquired regardless of the weather conditions. The monitoring and study of wetl
Externí odkaz:
https://doaj.org/article/7bc17c6524574677b07cc5b5d79f789b
Propagation speeds of relativistic conformal fluids from a generalized relaxation time approximation
Autor:
Calzetta, Esteban, Kandus, Alejandra
We compute the propagation speeds for a conformal real relativistic fluid. We begin from a kinetic equation in the relaxation time approximation, where the relaxation time is an arbitrary function of the particle energy in the Landau frame. We propos
Externí odkaz:
http://arxiv.org/abs/2403.05695
Just as non relativistic fluids, oftentimes we find relativistic fluids in situations where random fluctuations cannot be ignored, thermal and turbulent fluctuations being the most relevant examples. Because of the theory's inherent nonlinearity, flu
Externí odkaz:
http://arxiv.org/abs/2210.07422
Autor:
Alejandra Kandus, Esteban Calzetta
Publikováno v:
Entropy, Vol 26, Iss 11, p 927 (2024)
The propagation speeds of excitations are a crucial input in the modeling of interacting systems of particles. In this paper, we assume the microscopic physics is described by a kinetic theory for massless particles, which is approximated by a genera
Externí odkaz:
https://doaj.org/article/ce16f3c367054622842ff65aa12e143e
Publikováno v:
JCAP01(2022)028
We study the onset of vector instabilities in the post-inflationary epoch of the Universe as a mechanism for primordial magnetic fields amplification. We assume the presence of a charged spectator scalar field arbitrarily coupled to gravity during In
Externí odkaz:
http://arxiv.org/abs/2101.03644
In the Second Order Theories (SOT) of real relativistic fluids, the non-ideal properties of the flows are described by a new set of dynamical tensor variables. In this work we explore the non-linear dynamics of those variables in a conformal fluid. A
Externí odkaz:
http://arxiv.org/abs/2002.08323
Akademický článek
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In the Second Order Theories (SOT) of real relativistic fluids, the non-ideal properties are described by a new set of dynamical tensor variables. In this work we explore the non-linear dynamics of those modes in a conformal fluid. Among all possible
Externí odkaz:
http://arxiv.org/abs/1812.01003
Autor:
Gomez, Daniel O., Kandus, Alejandra
We extend the classical two-fluid magnetohydrodynamic (MHD) formalism to include quantum effects such as electron Fermi pressure, Bohm pressure and spin couplings. At scales smaller than the electron skin-depth, the Hall effect and electron inertia m
Externí odkaz:
http://arxiv.org/abs/1809.05056
Publikováno v:
Revista de Teledetección, Iss 60, Pp 29-46 (2022)
With the launch of the Sentinel-1 mission, for the first time, multitemporal and dual-polarization C-band SAR data with a short revisit time is freely available. How can we use this data to generate accurate vegetation cover maps on a local scale? Ou
Externí odkaz:
https://doaj.org/article/d03f88e58a944c539df24c2bd9f5b158