Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Cătălin Galeş"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract This paper demonstrates the capabilities of convolutional neural networks (CNNs) at classifying types of motion starting from time series, without any prior knowledge of the underlying dynamics. The paper applies different forms of deep lear
Externí odkaz:
https://doaj.org/article/e9096196b3ea4016999594fe2230fc8d
Autor:
Cătălin Galeş, Stan Chiriţă
Publikováno v:
Acta Mechanica. 232:4217-4233
This paper addresses the wave propagation problem within the context of the theory of materials with triple porosity under local thermal non-equilibrium. The time-harmonic wave solution is studied and the dispersion relation is explicitly established
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a5409d213783bac4aae3ff9ca588994
https://doi.org/10.1007/s00707-021-03044-y
https://doi.org/10.1007/s00707-021-03044-y
We study the dynamics of co-orbital dust in the inner solar system, i.e. the role of the solar radiation pressure, Poynting-Robertson effect, solar wind, and the interplanetary magnetic field on the location, width and stability of resonant motion of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3c68192c8735769b9ceec0e13761e6d
We consider a restricted four-body problem, with a precise hierarchy between the bodies: two larger bodies and a smaller one, all three of oblate shape, and a fourth, infinitesimal body, in the neighborhood of the smaller of the three bodies. The thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5af318fdb3a8a800b73c1ca25cf545fb
http://hdl.handle.net/2108/264174
http://hdl.handle.net/2108/264174
Autor:
Cătălin Galeş, Christoph Lhotka
We investigate the dynamics of charged dust close to outer mean-motion resonances with planet Jupiter. The importance of the interplanetary magnetic field on the orbital evolution of dust is clearly demonstrated. New dynamical phenomena are found tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4fbfdb3af7972cc3bda90354c5adcd1
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 460:802-815
We analyze the combined effect of Poynting-Robertson and solar wind drag on space debris. We derive a model within Cartesian, Gaussian and Hamiltonian frameworks. We focus on the geosynchronous resonance, although the results can be easily generalize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::743eedfa83a006bf390139aacc92d087
https://doi.org/10.1093/mnras/stw927
https://doi.org/10.1093/mnras/stw927
Publikováno v:
SIAM Journal on Applied Dynamical Systems. 15:1352-1383
Using bifurcation theory, we study the secular resonances induced by the Sun and Moon on space debris orbits around the Earth. In particular, we concentrate on a special class of secular resonances, which depend only on the debris' orbital inclinatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25886fe57a6f5ae75d6ea7ec0e93faae
https://doi.org/10.1137/15m1042632
https://doi.org/10.1137/15m1042632
Autor:
Stan Chiriţă, Cătălin Galeş
Publikováno v:
Mechanics of Materials. 149:103558
This paper is dedicated to propagation of waves with assigned length in a model describing the evolutionary behavior of materials with double porosity. Basic equations are considered for an isotropic and homogeneous material which occupies the entire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c73b4da7187e5176cf50e31fddbf22d0
https://doi.org/10.1016/j.mechmat.2020.103558
https://doi.org/10.1016/j.mechmat.2020.103558
Autor:
Alessandra Celletti, Cătălin Galeş
The nearby space surrounding the Earth is densely populated by artificial satellites and instruments, whose orbits are distributed within the Low-Earth-Orbit region (LEO), ranging between 90 and 2 000 $km$ of altitude. As a consequence of collisions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b169d0b705bebb8c55cdf1076b2863
http://arxiv.org/abs/1710.02519
http://arxiv.org/abs/1710.02519
The increasing threat raised by space debris led to the development of different mathematical models and approaches to investigate the dynamics of small particles orbiting around the Earth. Such models and methods strongly depend on the altitude of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a4cb2a62a876dea10eb1231e67f593e
http://hdl.handle.net/2108/174305
http://hdl.handle.net/2108/174305