Zobrazeno 1 - 10
of 3 336
pro vyhledávání: '"Filho, F."'
We investigate the flux intensities spanning from radio waves to $\gamma$-rays across 36 light curves of Quasar 3C 273, utilizing publicly available data collected by the Integral Science Data Centre (ISDC) database. Our analysis reveals a consistent
Externí odkaz:
http://arxiv.org/abs/2405.17244
Sequential (or collisional) engines have been put forward as an alternative candidate for the realisation of reliable engine setups. Despite this, the role of the different stages and the influence of the intermediate reservoirs is not well understoo
Externí odkaz:
http://arxiv.org/abs/2305.03813
Autor:
Filho, F. J. S. Lima, Ferreira, V. M. B., Filho, P. C. F. da Silva, Gomes, F. O. da Silva, Alves, B. W. de Freitas, Barbosa, S. G. A., Santiago, T. de Melo, de Freitas, D. B.
Astrophysical data, in the domains of time, involve a wide range of stellar variability phenomena, among them the magnetic activity of the order of a few hours until the signature of an extra-solar planet which can cover a scale of time of a few days
Externí odkaz:
http://arxiv.org/abs/2209.04408
Autor:
Brigatti, E., Filho, F. N. M. de Sousa
Publikováno v:
Physical Review Letters 129, 029801 (2022)
In a recent Letter [1] a framework for estimating entropy was introduced and applied to one-dimensional and two-dimensional systems. In this Comment we show that the method is not well suited for estimating entropy in bidimensional systems presenting
Externí odkaz:
http://arxiv.org/abs/2207.06868
Publikováno v:
Physical Review E 105, 054116 (2022)
We investigate the performance of entropy estimation methods, based either on block entropies or compression approaches, in the case of bidimensional sequences. We introduce a validation dataset made of images produced by a large number of different
Externí odkaz:
http://arxiv.org/abs/2207.02672
Autor:
Seybold, H. J., Carmona, H. A., Filho, F. A. Leandro, Araújo, A. D., Filho, F. Nepomuceno, Andrade Jr, J. S.
Publikováno v:
Phys. Rev. Fluids 5, 104101 (2020)
We investigate through numerical simulations of the Navier-Stokes equations the influence of the surface roughness on the fluid flow through fracture joints. Using the Hurst exponent $H$ to characterize the roughness of the self-affine surfaces that
Externí odkaz:
http://arxiv.org/abs/2006.04846
Publikováno v:
EPB: Urban Analytics and City Science 2023, Vol. 50, 146-161
In this work, we develop a general method for estimating the Shannon entropy of a bidimensional sequence based on the extrapolation of block entropies. We apply this method to analyse the spatial configurations of cities of different cultures and reg
Externí odkaz:
http://arxiv.org/abs/2108.05550
Publikováno v:
Eur. Phys. J. Plus (2021) 136:551
Since electrons in a ballistic regime perceive a carbon nanotube or a graphene layer structure as a continuous medium, we can use the study of the quantum dynamics of one electron constrained to a curve or surface to obtain a qualitative description
Externí odkaz:
http://arxiv.org/abs/2103.00610
Publikováno v:
Brazilian Journal of Physics (2021) 51, 576-586
In this paper, we explore some stylized facts of the Bitcoin market using the BTC-USD exchange rate time series of historical intraday data from 2013 to 2020. Bitcoin presents some very peculiar idiosyncrasies, like the absence of macroeconomic funda
Externí odkaz:
http://arxiv.org/abs/2004.05870
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