Results 271 to 280 of about 1,480,448 (310)

New Monte Carlo Estimates of critical interfacial amplitudes and the universality of amplitude ratios

Physical Review Letters, 1988
Les amplitudes de la tension interfaciale critique sont obtenues sans calculer l'exces d'energie libre. Des calculs Monte Carlo avec de tres larges dimensions de reseau sont faits. Un modele d'Ising cubique simple est traite. Les desaccords entre les experiences et la theorie sur l'universalite des rapports d'amplitudes sont ...
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Universal critical amplitude ratios for percolation

Physical Review B, 1980
The hypothesis of universality implies that for every scaling relation among critical exponents there exists a universal ratio among the corresponding critical amplitudes. If one writes $B{|t|}^{\ensuremath{\beta}}$, ${{A}_{F}}^{\ifmmode\pm\else\textpm\fi{}}{|t|}^{2\ensuremath{-}\ensuremath{\alpha}}$, ${C}^{\ifmmode\pm\else\textpm\fi{}}{|t ...
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Stereoacuity, Fusional Amplitudes, and AC/A Ratio in Accommodative Esotropia

American Orthoptic Journal, 1976
(1976). Stereoacuity, Fusional Amplitudes, and AC/A Ratio in Accommodative Esotropia. American Orthoptic Journal: Vol. 26, No. 1, pp. 60-64.
B, Cassin, B, Beecham, K, Friedberg
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Amplitude ratios near a Lifshitz point

Canadian Journal of Physics, 2001
The susceptibility amplitude ratio in the neighborhood of an m-fold Lifshitz point is calculated using the field theoretical techniques of the renormalization group, in one-loop order. A simple expression for the amplitude associated with the helical (ferromagnetic) AH (AF) branches near a Lifshitz point is also calculated.
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Estimation of the signal-to-noise ratio with amplitude modulation spectrograms

Speech Communication, 2002
Summary: An algorithm is proposed which automatically estimates the local signal-to-noise ratio (SNR) between speech and noise. The feature extraction stage of the algorithm is motivated by neurophysiological findings on amplitude modulation processing in higher stages of the auditory system in mammals.
Jürgen Tchorz, Birger Kollmeier
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Surface amplitude ratios near a critical end point

Physical Review Letters, 1991
We provide the first experimental test of the universality of a surface amplitude ratio near a critical end point by measuring the modified critical adsorption amplitude ratio, ${\mathit{R}}_{\mathit{M}\mathit{A}}$, for the liquid mixtures aniline+cyclohexane and isobutyric acid+water.
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Contrast of Fringes (Polarization and Amplitude Ratio)

2010
This excerpt gives a succinct explanation of the contrast of fringes (polarization and amplitude ratio).
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Universal amplitude ratios of critical sound attenuation

Zeitschrift f�r Physik B Condensed Matter, 1987
The universal amplitude ratios for ultrasonic attenuation above and below the critical point are determined for uniaxial magnets, the gas liquid critical point, binary mixtures and related universality classes. For uniaxial ferromagnets also the scaling functions are computed.
R. Dengler, F. Schwabl
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Universal amplitude ratios for scaling corrections on Ising strips

Physical Review E, 2011
We study the (analytic) finite-size corrections in the Ising model on the strip with free, fixed (++), and mixed boundary conditions. For fixed (++) boundary conditions, the spins are fixed to the same values on two sides of the strip. We find that subdominant finite-size corrections to scaling should be to the form a(p)/N(2p-1) for the free energy f(N)
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Bitwise Log-Likelihood Ratios for Quadrature Amplitude Modulations

IEEE Communications Letters, 2015
For an increase in spectral efficiency and improvement of error performance, a high-order modulation and an advanced channel coding scheme are jointly used for many digital communication systems. In this paper, a new and simple method for calculating bitwise log-likelihood ratios which are required for soft decision decoding is proposed for $M ...
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