The mass spectrum of the 3d 3-state Potts model is considered in the broken phase (a) near the second order Ising critical point in the temperature-magnetic field plane and (b) near the weakly first order transition point at zero magnetic field. In the case (a), the mass spectrum is compared with the prediction from universality of mass ratios in the 3d Ising class; in the case (b) a mass ratio...

We propose a new, simple approach to enhance the spectral compression process arising from nonlinear pulse propagation in an optical fibre. We numerically show that an additional sinusoidal temporal phase modulation of the pulse enables efficient reduction of the intensity level of the side lobes in the spectrum that are produced by the mismatch between the initial linear negative chirp of the ...

Models of the visual cortex are based on image decomposition according to the Fourier spectrum (amplitude and phase). On one hand, it is commonly believed that phase information is necessary to identify a scene. On the other hand, it is known that complex cells of the visual cortex, the most numerous ones, code only the amplitude spectrum. This raises the question of knowing if these cells carr...

Spectral wave modelling is widely used to simulate large-scale wind–wave processes due its low computation cost and relatively simpler formulation, in comparison phase-resolving or hydrodynamic models. However, some applications require a time-domain representation of sea waves. This article proposes methodology transform the spectrum into time series water surface elevation for that ocean The ...

In this paper we present a new Analysis/Synthesis method named SINOLA, which benefits from both sinusoidal additive model and OLA/PSOLA method, and which allows adequate processing according to the inherent local characteristics of the signal. All the parameters of the models are derived at the same time from spectrum analysis. We propose an analytical formulation of a Complex Short-Time Spectr...

Suzaku observations are reported of the BL Lacertae object OJ 287, performed on 2007 April 10– 13 during the optical quiescent phase and on 2007 November 7–9 during the optical flaring phase. We organized the simultaneous the radio and optical observations with the Nobeyama Millimeter Array and optical KANATA telescope at Hiroshima University, respectively. The X-ray spectrum obtained in the qu...

Polarization observations of the cosmic microwave background with the Cosmic Background Imager from September 2002 to May 2004 provide a significant detection of the E-mode polarization and reveal an angular power spectrum of polarized emission showing peaks and valleys that are shifted in phase by half a cycle relative to those of the total intensity spectrum. This key agreement between the ph...

It is shown that remarkable spectral changes take place in the neighborhood of phase singularities near the focus of a converging, spatially fully coherent polychromatic wave diffracted at an aperture. In particular, when the spectrum of the wave in the aperture consists of a single line with a narrow Gaussian profile, the spectrum near a phase singularity (i.e., near points of zero intensity o...

gabapentin (gbp) is one of the new antiepileptic drugs (aeds) applied extensively in neurology and psychiatry. the advantage of new aeds includes newer mechanism of action, broad spectrum of anti-seizure effects, lesser drug interactions and fewer side effects. gbp is a cyclized analogue of gaba but it does not interact with gaba receptors, nor does it inhibit gaba uptake or prevent the degener...