Results 21 to 30 of about 78,426 (315)

Autoresonant excitation of space-time quasicrystals in plasma

open access: yesPhysical Review Research, 2022
We demonstrate theoretically and numerically that a warm fluid model of a plasma supports space-time quasicrystalline structures. These structures are highly nonlinear, two-phase, ion acoustic waves that are excited autoresonantly when the plasma is ...
Vadim R. Munirov   +2 more
doaj   +1 more source

New Traveling Wave Solutions and Interesting Bifurcation Phenomena of Generalized KdV-mKdV-Like Equation

open access: yesAdvances in Mathematical Physics, 2021
Using the bifurcation method of dynamical systems, we investigate the nonlinear waves and their limit properties for the generalized KdV-mKdV-like equation.
Yiren Chen, Shaoyong Li
doaj   +1 more source

Chaos in Magnetoplasmas [PDF]

open access: yesNonlinear Processes in Geophysics, 1999
A nonlinear wave, in general, is equivalent to a nonlinear dynamical system, which exhibits the phenomena of chaos. By means of techniques of nonlinear dynamical systems, we have investigated the conditions under which nonlinear Alfvén waves and lower-
B. Buti
doaj  

A Comparative Study on Generation and Propagation of Nonlinear Waves in Shallow Waters

open access: yesJournal of Marine Science and Engineering, 2023
This study is concerned with the generation and propagation of strongly nonlinear waves in shallow water. A numerical wave flume is developed where nonlinear waves of solitary and cnoidal types are generated by use of the Level I Green-Naghdi (GN ...
Jiaqi Liu   +2 more
doaj   +1 more source

The modified Korteweg - de Vries equation in the theory of large - amplitude internal waves [PDF]

open access: yesNonlinear Processes in Geophysics, 1997
The propagation of large- amplitude internal waves in the ocean is studied here for the case when the nonlinear effects are of cubic order, leading to the modified Korteweg - de Vries equation.
R. Grimshaw, E. Pelinovsky, T. Talipova
doaj  

Mathematical methods via the nonlinear two-dimensional water waves of Olver dynamical equation and its exact solitary wave solutions

open access: yesResults in Physics, 2018
The problem formulations of the nonlinear for the small-long amplitude two-dimensional water waves propagation with free surface are studied. The water wave problem leads to the nonlinear Olver dynamical equation. By applying the extended mapping method,
Aly R. Seadawy, Sultan Z. Alamri
doaj   +1 more source

The solitonic solutions of finite depth long water wave models

open access: yesResults in Physics, 2022
The nonlinear Fokas and breaking soliton equations are important modeling equations for coastal and ocean waves, such as long water waves and tsunami waves.
M. Ali Akbar   +2 more
doaj   +1 more source

Discovery and Targeted Proteomic Studies Reveal Striatal Markers Validated for Huntington's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Clinical trials for Huntington's disease (HD) enrolling persons before clinical motor diagnosis (CMD) lack validated biomarkers. This study aimed to conduct an unbiased discovery analysis and a targeted examination of proteomic biomarkers scrutinized by clinical validation. Methods Cerebrospinal fluid was obtained from PREDICT‐HD and
Daniel Chelsky   +8 more
wiley   +1 more source

Assessment of Skin in Patients With Systemic Sclerosis Using High‐Frequency Ultrasound and Shear Wave Elastography: A Comparative Study With Histology, Molecular, and Clinical Parameters

open access: yesArthritis Care &Research, EarlyView.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histologic markers of skin fibrosis has not been reported. We evaluated US‐based skin assessments for their face validity (differentiation between involved SSc and healthy
Ruhani Desai   +12 more
wiley   +1 more source

Nonlinear tunneling effect of snakelike self-similar waves in a grating dual-core waveguide amplifier

open access: yesResults in Physics, 2019
We study on the nonlinear tunneling effect of snakelike self-similar waves of the nonlinear Schrödinger equation with gains in an asymmetric dual-core waveguide amplifier with a long-period grating.
Jun-Rong He, Si-Liu Xu, Li Xue
doaj   +1 more source

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