نتایج جستجو برای: kawahara
تعداد نتایج: 298 فیلتر نتایج به سال:
Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 21 January 2021Accepted: 20 June 2021Published online: 09 September 2021KeywordsKawahara equation, spectral stability, high-frequency instabilities, perturbation methods, dispersive Hamiltonian systems, Stokes wavesAMS Subject Headings35B35, 37K45, 34L05Publication DataIS...
We study the stability of spatially periodic solutions to the Kawahara equation, a fifth order, nonlinear partial differential equation. The equation models the propagation of nonlinear water-waves in the long-wavelength regime, for Weber numbers close to 1/3 where the approximate description through the Korteweg-de Vries (KdV) equation breaks down. Beyond threshold, Weber number larger than 1/...
a r t i c l e i n f o Keywords: Invasive fish species Largemouth bass Bluegill Food web modeling Ecosystem attributes Lake Kawahara-oike The introduction of largemouth bass (Micropterus salmoides) and bluegill sunfish (Lepomis macrochirus) into the freshwater ecosystems of Japan has resulted in the suppression and/or replacement of native species, generating considerable concerns among resource...
Nilton T Kawahara, Clarissa Alster, Fauze Maluf-Filho, Wilson Polara, Guilherme M. Campos, Luiz Francisco Poli-de-Figueiredo (in memoriam) I Faculdade de Medicina da Universidade de São Paulo, (FMUSP), Department of Surgical Technique, São Paulo/SP, Brazil. II Faculdade de Medicina da Universidade de São Paulo, (FMUSP), Department of Gastroenterology, Gastrointestinal Endoscopy Unit, São Paulo/...
Circulations are similar to flows in capacity-constrained networks, with the difference that they also observe lower bounds and, unlike flows, are not directed from a source to a sink. We give a new description of circulations in networks using a technique introduced by Kawahara; he applied the same methods to network flows. We show the power and flexibility of his approach in a new application...
In this paper, we describe a speech re-synthesis tool using the fundamental frequency (F0) generation model proposed by Fujisaki et al. and STRAIGHT, designed by Kawahara, which can be used for listening experiments by modifying F0 model parameters. To create the tool, we first established a method for automatically estimating F0 model parameters by using genetic algorithms. Next, we combined t...
This article proposes a numerical algorithm utilizing the spectral Tau method for numerically handling Kawahara partial differential equation. The double basis of fifth-kind Chebyshev polynomials and their shifted ones are used as functions. Some theoretical results in deriving our proposed algorithm. nonlinear term equation is linearized using new product formula with first derivative polynomi...
We analyze operator splitting methods applied to scalar equations with a nonlinear advection operator, and a linear (local or nonlocal) diffusion operator or a linear dispersion operator. The advection velocity is determined from the scalar unknown itself and hence the equations are so-called active scalar equations. Examples are provided by the surface quasi-geostrophic and aggregation equatio...
The DIRC is a totally internally reflecting Cherenkov imaging detector proposed for particle identification at the asymmetric e+e− B factories. First test results from a conceptual prototype using cosmic muons are reported. The photo-electron yield and the single Cherenkov photon resolution at various track dip angles and positions along the radiator bar have been measured. The results are cons...
population. Circulation 2007;115:996–1003. 29. Keatinge WR, Coleshaw SR, Cotter F, Mattock M, Murphy M, Chelliah R. Increases in platelet and red cell counts, blood viscosity, and arterial pressure during mild surface cooling: factors in mortality from coronary and cerebral thrombosis in winter. Br Med J (Clin Res Ed) 1984;289: 1405–1408. 30. Kawahara J, Sano H, Fukuzaki H, Saito K, Hirouchi H....
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