Search Results - "Abreu, C. M."

Refine Results
  1. 1

    The unphysical character of minimally coupled dark energy fluids by Duarte, Ronaldo C., Barboza, Edésio M., Abreu, Everton M. C., Neto, Jorge Ananias

    “…It is well known that, in the context of general relativity, an unknown kind of matter that must violate the strong energy condition is required to explain the…”
    Get full text
    Journal Article
  2. 2

    Thermal features of Barrow corrected-entropy black hole formulation by Abreu, Everton M. C., Neto, Jorge Ananias

    “…Through the last years, it was demonstrated that quantum corrections of entropy, represented by logarithmic and power law corrections terms, constituted an…”
    Get full text
    Journal Article
  3. 3
  4. 4

    Tsallis and Kaniadakis statistics from a point of view of the holographic equipartition law by Abreu, Everton M. C., Neto, Jorge Ananias, Mendes, Albert C. R., Bonilla, Alexander

    Published in Europhysics letters (01-02-2018)
    “…In this work, we have illustrated the difference between both Tsallis and Kaniadakis entropies through cosmological models obtained from the formalism proposed…”
    Get full text
    Journal Article
  5. 5

    Dust content solutions for the Alcubierre warp drive spacetime by Santos-Pereira, Osvaldo L., Abreu, Everton M. C., Ribeiro, Marcelo B.

    “…The Alcubierre metric is a spacetime geometry where a massive particle inside a spacetime distortion, called warp bubble, is able to travel at velocities…”
    Get full text
    Journal Article
  6. 6

    Fluid dynamics in the warp drive spacetime geometry by Santos-Pereira, Osvaldo L., Abreu, Everton M. C., Ribeiro, Marcelo B.

    “…The Alcubierre warp drive metric is a spacetime geometry featuring a spacetime distortion, called a warp bubble, where a massive particle inside it acquires…”
    Get full text
    Journal Article
  7. 7

    Black holes thermodynamics from a dual Kaniadakis entropy by Abreu, Everton M. C., Ananias Neto, Jorge

    Published in Europhysics letters (01-02-2021)
    “…Abstract Kaniadakis entropy, an important extension of the Boltzmann-Gibbs entropy, was proposed some years ago. Inspired by a dual Renyi entropy, in this…”
    Get full text
    Journal Article
  8. 8

    The effect of Ni in the electrochemical properties of oxide layers grown on stainless steels by Abreu, C.M., Cristóbal, M.J., Losada, R., Nóvoa, X.R., Pena, G., Pérez, M.C.

    Published in Electrochimica acta (01-04-2006)
    “…This study analyses the influence of Ni in the electrochemical behaviour of three different stainless steels in alkaline medium. The studied steels have…”
    Get full text
    Journal Article
  9. 9

    Forecast on lepton asymmetry from future CMB experiments by Bonilla, Alexander, Nunes, Rafael C, Abreu, Everton M C

    “…Abstract We consider a cosmological lepton asymmetry in the form of neutrinos and impose new expected sensitivities on such asymmetry through the degeneracy…”
    Get full text
    Journal Article
  10. 10
  11. 11

    Effect of nitrogen and molybdenum ion implantation in the tribological behavior of AA7075 aluminum alloy by Figueroa, R., Abreu, C.M., Cristóbal, M.J., Pena, G.

    Published in Wear (15-02-2012)
    “…► Effect of N+ and Mo+ implantation in tribological properties of AA7075 aluminium alloy. ► Formation of aluminium nitride layer by N+ implantation produce…”
    Get full text
    Journal Article
  12. 12
  13. 13

    Influence of molybdenum ion implantation on the localized corrosion resistance of a high strength aluminium alloy by Abreu, C.M., Cristóbal, M.J., Figueroa, R., Pena, G.

    Published in Corrosion science (2012)
    “…► Mo implanted 7075 aluminium alloy in T6 and T73 conditions is studied. ► After implantation Mo is not bonded to Al forming a new phase. ► Significant…”
    Get full text
    Journal Article
  14. 14

    Comparative study of passive films of different stainless steels developed on alkaline medium by Abreu, C.M, Cristóbal, M.J, Losada, R, Nóvoa, X.R, Pena, G, Pérez, M.C

    Published in Electrochimica acta (30-07-2004)
    “…Evolution of the passive films formed on AISI 304L and duplex stainless steel SAF 2205 in NaOH 0.1 M was investigated using cyclic voltammetry, electrochemical…”
    Get full text
    Journal Article Conference Proceeding
  15. 15

    Long-term behaviour of AISI 304L passive layer in chloride containing medium by Abreu, C.M., Cristóbal, M.J., Losada, R., Nóvoa, X.R., Pena, G., Pérez, M.C.

    Published in Electrochimica acta (20-01-2006)
    “…In this research, the behaviour and evolution of passive films generated on AISI 304L are studied for a long immersion time in chloride containing media. A…”
    Get full text
    Journal Article Conference Proceeding
  16. 16

    Jeans instability criterion from the viewpoint of Kaniadakis' statistics by Abreu, Everton M. C., Ananias Neto, Jorge, Barboza, Edesio M., Nunes, Rafael C.

    Published in Europhysics letters (01-06-2016)
    “…In this letter we have derived the Jeans length in the context of the Kaniadakis statistics. We have compared this result with the Jeans length already…”
    Get full text
    Journal Article
  17. 17

    Assessing Pretreatment Effect on the Protective Properties of Different Coating Systems Against Marine Corrosion by ECHEVERRIA, M, ABREU, C. M, ECHEVERRIA, C. A

    Published in Corrosion (Houston, Tex.) (01-12-2014)
    “…In this work, five coating systems combining different surface treatments were applied to steel samples and compared with a model system used in civil…”
    Get full text
    Journal Article
  18. 18

    On the nature of modified Rényi entropy and the incomplete statistics approach in black holes thermodynamics by C. Abreu, Everton M., Ananias Neto, Jorge

    Published in Europhysics letters (01-07-2021)
    “…In this work we have investigated the effects of the two highlighted non-Gaussian entropies which are the modified Rényi entropy and the so-called incomplete…”
    Get full text
    Journal Article
  19. 19

    Chemically sulfated galactomannan from Dimorphandra gardneriana seed: Characterization and toxicity evaluation by Moura Neto, E., Sombra, V.G., Richter, A.R., Abreu, C.M.W.S., Maciel, J.S., Cunha, P.L.R., Ono, L., Sierakowski, M.R., Feitosa, J.P.A., de Paula, R.C.M.

    Published in Carbohydrate polymers (30-01-2014)
    “…•Sulfate derivative from D. gardneriana galactomannan (SDG) was obtained with DS=0.32.•Sulfation leads to chain degradation with release of galactosyl…”
    Get full text
    Journal Article
  20. 20

    Electrochemical behaviour of an AISI 304L stainless steel implanted with nitrogen by Abreu, C.M., Cristóbal, M.J., Merino, P., Nóvoa, X.R., Pena, G., Pérez, M.C.

    Published in Electrochimica acta (20-08-2008)
    “…In this paper the electrochemical behaviour of AISI 304L stainless steel implanted with nitrogen is studied in alkaline media and chloride-containing media,…”
    Get full text
    Journal Article