Results 21 to 30 of about 2,766 (261)

Path Integral Estimates of the Quantum Fluctuations of the Relative Soliton-Soliton Velocity in a Gross-Pitaevskii Breather

open access: yesPhysics, 2022
In this paper, the quantum fluctuations of the relative velocity of constituent solitons in a Gross-Pitaevskii breather are studied. The breather is confined in a weak harmonic trap.
Sumita Datta   +2 more
doaj   +1 more source

Breathers, Transformation Mechanisms and Their Molecular State of a (3+1)-Dimensional Generalized Yu–Toda–Sasa–Fukuyama Equation

open access: yesMathematics, 2023
A (3+1)-dimensional generalized Yu–Toda–Sasa–Fukuyama equation is considered systematically. N-soliton solutions are obtained using Hirota’s bilinear method.
Jian Zhang   +3 more
doaj   +1 more source

Some Breathers and Multi-breathers for FPU-Type Chains [PDF]

open access: yesCommunications in Mathematical Physics, 2019
We consider several breather solutions for FPU-type chains that have been found numerically. Using computer-assisted techniques, we prove that there exist true solutions nearby, and in some cases, we determine whether or not the solution is spectrally stable. Symmetry properties are considered as well. In addition, we construct solutions that are close
Arioli G., Koch H.
openaire   +2 more sources

Growth and mouth breathers

open access: yesJornal de Pediatria, 2019
To assess the relationship between mouth breathing and growth disorders among children and teenagers.Search on MEDLINE database, over the last 10 years, by using the following terms: "mouth breathing", "adenotonsilar hypertrophy", "allergic rhinitis", "sleep disturbance" AND "growth impairment", "growth hormone", "failure to thrive", "short stature ...
Mario Morais‐Almeida   +2 more
openaire   +7 more sources

Magnetoinductive breathers in metamaterials [PDF]

open access: yesPhysical Review E, 2008
The existence and stability of discrete breathers (DBs) in one- and two-dimensional magnetic metamaterials (MMs), which consist of periodic arrangements (arrays) of split-ring resonators (SRRs), are investigated numerically. We consider different configurations of the SRR arrays, which are related to the relative orientation of the SRRs in the MM, in ...
M, Eleftheriou   +2 more
openaire   +2 more sources

Dimensional changes in maxillary sinus of mouth breathers

open access: yesJournal of Oral Biology and Craniofacial Research, 2013
Aims: Nose being the primary mode of air intake in humans can be obstructed in certain conditions and mouth takes over the process of breathing. As a result, there is a reduced or complete loss of function of nose, which shows underdevelopment or stunted
Tripti Tikku   +4 more
doaj   +1 more source

Ion Acoustic Breathers in Electron-Beam Plasma

open access: yesPlasma, 2023
The nonlinear excitations of ion acoustic (IA) structures in an electron beam embedded plasma composed of Vasyliunas–Cairns (VC) distributed hot electrons has been studied.
Manveet Kaur   +3 more
doaj   +1 more source

Breather Wave Molecules [PDF]

open access: yesPhysical Review Letters, 2019
We present both a theoretical description and experimental observation of the nonlinear mutual interactions between a pair of copropagative breathers in the framework of the focusing one-dimensional nonlinear Schrödinger equation. As a general case, we show that the resulting bound state of breathers exhibits moleculelike behavior with quasiperiodic ...
Xu, Gang   +4 more
openaire   +4 more sources

Coupled Airy breathers [PDF]

open access: yesOptics Letters, 2014
The dynamics of two component coupled Airy beams is investigated. In the linear propagation regime a complete analytic solution describes breather like propagation of the two components featuring non-diffracting self-accelerating Airy behavior. The superposition of two beams with different input properties opens the possibility to design more complex ...
Driben, R., Konotop, V. V., Meier, T.
openaire   +3 more sources

Hydrodynamics of periodic breathers [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
We report the first experimental observation of periodic breathers in water waves. One of them is Kuznetsov–Ma soliton and another one is Akhmediev breather. Each of them is a localized solution of the nonlinear Schrödinger equation (NLS) on a constant background. The difference is in localization which is either in time or in space.
Chabchoub, A.   +3 more
openaire   +3 more sources

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