Results 31 to 40 of about 2,315 (263)

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

The Akhmediev breather is unstable [PDF]

open access: yesSão Paulo Journal of Mathematical Sciences, 2019
In this note, we give a rigorous proof that the NLS periodic Akhmediev breather is unstable. The proof follows the ideas in [17], in the sense that a suitable modification of the Stokes wave is the global attractor of the local Akhmediev dynamics for sufficiently large time, and therefore the latter cannot be stable in any suitable finite energy ...
Alejo M. A., Fanelli L., Munoz C.
openaire   +3 more sources

Bounded States for Breathers–Soliton and Breathers of Sine–Gordon Equation [PDF]

open access: yesNonlinear Dynamics, 2021
Abstract The Wronskians solutions to the sine-Gordon (sG) equation that can provide interaction of different kinds of solutions are revisited. A novel expression N-soliton solution with a nonzero background is presented which is used to construct the soliton and breather solutions.
openaire   +1 more source

Pressure Drop in a Metal Foam Centrifugal Breather: A Simulation Approach

open access: yesAerospace
One of the main issues faced in the operation of a metal foam centrifugal breather is the high pressure drop. This study investigates the pressure drop of a metal foam centrifugal breather. The numerical simulation research method is adopted.
Lifen Zhang   +3 more
doaj   +1 more source

Breather Wave and Traveling Wave Solutions for A (2 + 1)-Dimensional KdV4 Equation

open access: yesAdvances in Mathematical Physics, 2022
In this paper, an integrable (2 + 1)-dimensional KdV4 equation is considered. By considering variable transformation and Bell polynomials, an effective and straightforward way is presented to derive its bilinear form.
Sixing Tao
doaj   +1 more source

Interaction solution to the (3+1)-D negative-order KdV first structure

open access: yesPartial Differential Equations in Applied Mathematics, 2023
We derive N-solitons and interaction solution for the (3+1)-D negative-order KdV first structure that arises in shallow-water waves. We use the bilinear scheme and the simplified Hirota technique for this solution. From the multiple solitons solution, we
Mohammad Safi Ullah
doaj   +1 more source

Short term effects of rapid maxillary expansion on breathing function assessed with spirometry: A case-control study

open access: yesSaudi Dental Journal, 2021
Background: The aim of this work is to evaluate changes following rapid maxillary expansion (RME) on breathing function in two groups of patients: mouth breathers and nasal breathers. Materials and methods: Twenty-five oral breather patients (12 male, 13
Andrea Abate   +5 more
doaj   +1 more source

Early Impact of Childhood Opportunity on Neurocognitive Outcomes in Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neurocognitive impairment is a well‐recognized complication of sickle cell disease (SCD) that begins early in childhood and persists across development. While cerebrovascular injury contributes substantially to risk, neurocognitive deficits are also observed in children without overt or silent cerebral infarctions, suggesting ...
Julia E. LaMotte   +5 more
wiley   +1 more source

Breather Turbulence: Exact Spectral and Stochastic Solutions of the Nonlinear Schrödinger Equation

open access: yesFluids, 2019
I address the problem of breather turbulence in ocean waves from the point of view of the exact spectral solutions of the nonlinear Schrödinger (NLS) equation using two tools of mathematical physics: (1) the inverse scattering transform (IST) for ...
Alfred R. Osborne
doaj   +1 more source

Development and Implementation of a Disease‐Targeted Storybook as a Clinical Tool for Children With Acute Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Although significant progress has been made in childhood leukemia survival, healthcare providers, and caregivers often face challenges in explaining this disease to patients. Disease‐targeted storybooks have been proposed as a tool to facilitate the understanding of diagnoses and treatment.
Nutvipha Ummartyotin   +6 more
wiley   +1 more source

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