A New Method Based on the Spectral Analysis to Generate the Frequential Behavior of Magnetic Hysteresis

Nouicer, Abdelmadjid; Nouicer, E.; Féliachi, Mouloud

doi:10.2528/pierm11051111

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…The measured e ± nuclear suppression factor, R AA , and elliptic flow, v 2 , for Au+Au ( √ s NN =200 GeV) collisions thus far are superpositions of open-charm and -bottom contributions [9,10,11]. In anticipation of experimental results for charm-and bottom-separated e ± [25], we present in Fig. 1 our pertinent predictions.…”

Section: Flavor-separated Non-photonic Electrons At Rhicmentioning

confidence: 87%

Non-perturbative Heavy-Flavor Transport at RHIC and LHC

Fries

Rapp

2013

Nuclear Physics A

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We calculate open heavy-flavor (HF) transport in relativistic heavy-ion collisions by applying a strong-coupling treatment in both macro-and microscopic dynamics (hydrodynamics and non-perturbative diffusion interactions). The hydrodynamic medium evolution is quantitatively constrained by bulk and multi-strange hadron spectra and elliptic flow. The heavy quark (HQ) transport coefficient is evaluated from a non-perturbative T -matrix approach in the Quark-Gluon Plasma (QGP) which, close to the critical temperature, leads to resonance formation and feeds into the recombination of heavy quarks on a hydrodynamic hypersurface. In the hadronic phase, the diffusion of HF mesons is obtained from effective hadronic theory. We compute observables at RHIC and LHC for non-photonic electrons and HF mesons, respectively.

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Section: Flavor-separated Non-photonic Electrons At Rhicmentioning

confidence: 87%

Non-perturbative Heavy-Flavor Transport at RHIC and LHC

Fries

Rapp

2013

Nuclear Physics A

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“…64 Here, we point out that in a series of papers devoted to the thermodynamics of the expanding FRW universe with dark energy, there is assumed the usual law T A = 1/2πR A for stationary horizons, 65-67 which certainly invalidates the results obtained. 68 The expression of temperature (39) is similar to the temperature in York's theory of BHs confined in isothermal cavities. 69 In this context, a local observer at rest will measure a local temperature which scales as 1/ √ −g tt for a selfgravitating mass in thermal equilibrium with the boundary of the cavity.…”

Section: Statistical-mechanical Entropymentioning

confidence: 86%

Entropy of Cosmological Black Holes and the Generalized Second Law in the Phantom-Energy-Dominated Universe

Nouicer

2011

Int. J. Mod. Phys. D

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Adopting the thin layer improved brick wall method, we investigate the thermodynamics of a black hole embedded in a spatially flat Friedmann-Robertson-Walker universe. We calculate the temperature and the entropy at every apparent horizon for arbitrary solution of the scale factor. We show that the temperature and entropy display a nontrivial behavior as functions of time. In the case of black holes immersed in a universe driven by phantom energy, we show that for specific ranges of the equation-of-state parameter and apparent horizons the entropy is compatible with the D-bound conjecture, and even the null, dominant and strong energy conditions are violated. In the case of accretion of phantom energy onto a black hole with small Hawking-Hayward quasi-local mass, we obtain an equation-of-state parameter in the range w ≤ −5/3, guaranteeing the validity of the generalized second law.

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“…For a signal B of N samples, the discrete Fourier transform (DFT) and its inverse transform (IDFT) are given, respectively, by the following relations [11]:…”

Section: Dft Of the Magnetic Hysteresismentioning

confidence: 99%

Neural network-DFT based model for magnetostrictive hysteresis

Nouicer

Feliachi

2013

International Journal of Applied Electromagnetics and Mechanics

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The magnetic behavior of materials is highly sensitive to the applied stress, which is subject of this paper. In magnetostrictive materials, the relationship B(H) is strongly related to the applied mechanical stresses. The purpose of this paper is to present a simple method to identify this relation for any value of stress σ. The proposed approach is based on the knowledge of the magnetic flux density spectrum for different stress σ. So, a feed-forward neural network is trained to learn the relation between the rank of harmonics, stress and the amplitude of each harmonic. To construct the hysteresis loop for a new value of the stress σ, the neural network predicts the spectrum of the magnetic flux density B, which is transformed back to the time domain.

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A New Method Based on the Spectral Analysis to Generate the Frequential Behavior of Magnetic Hysteresis

Cited by 4 publications

References 7 publications

Non-perturbative Heavy-Flavor Transport at RHIC and LHC

Non-perturbative Heavy-Flavor Transport at RHIC and LHC

Entropy of Cosmological Black Holes and the Generalized Second Law in the Phantom-Energy-Dominated Universe

Neural network-DFT based model for magnetostrictive hysteresis

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