Results 91 to 100 of about 1,146 (297)

Structure of breathers and lump solutions for generalized Longitudinal Lugiato Lefever equation in externally-driven ring lasers

Boundary Value Problems
Lump and breather-type solutions have recently gained wide interest in nonlinear optics because of their fundamental importance in photonic systems and wave propagation studies.
Sarfaraz Ahmed, Ibtehal Alazman, Syed T. R. Rizvi, Aly R. Seadawy   +3 more
doaj   +1 more source

Study on exact solutions of a generalized Calogero–Bogoyavlenskii–Schiff​ equation

Partial Differential Equations in Applied Mathematics, 2020
By employing the generalized bilinear method and symbolic computation, we obtain new exact solutions of a generalized Calogero–Bogoyavlenskii–Schiff​ equation, which include breather wave solutions, periodic lump soliton solutions, and rational solutions.
Lihui Han, Sudao Bilige, Runfa Zhang, Meiyu Li   +3 more
doaj   +1 more source

Breather interactions, higher-order rogue waves and nonlinear tunneling for a derivative nonlinear Schrödinger equation in inhomogeneous nonlinear optics and plasmas

, 2015
Under investigation in this paper is a variable-coefficient derivative nonlinear Schrödinger (vc-DNLS) equation governing the femtosecond pulses in the inhomogeneous optical fibers or nonlinear Alfvén waves in the inhomogeneous ...
Lei Wang, Min Li, Chao Geng, Feng-Hua Qi
core   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Breather Solution of the Nonlinear Klein-Gordon Equation in the Redistribution of Small Amplitude [PDF]

, 2022
An approximate breather solution of the equation describing the propagation of solitary electromagnetic waves in a graphene superlattice is ...
Бадикова, П. В., Конченков, В. И., Konchenkov, V. I., Завьялов, Д. В., Zav’yalov, D. V., Badikova, P. V.   +5 more
core  

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Breather solutions for semilinear wave equations

We prove existence of real-valued, time-periodic and spatially localized solutions (breathers) of semilinear wave equations $V(x)u_{tt} - u_{xx} = Γ(x) |u|^{p-1} u$ on $\mathbb{R}^2$ for all values of $p\in (1,\infty)$. Using tools from the calculus of variations our main result provides breathers as ground states of an indefinite functional under ...
Henninger, Julia, Ohrem, Sebastian, Reichel, Wolfgang   +2 more
openaire   +4 more sources

Manipulation of breather waves with split-dispersion cascaded fibers

New Journal of Physics, 2022
A stabilization scheme is proposed for the dynamics of breather waves induced by the coherent-seed modulation instability based on manipulation of phase-space trajectory. Theoretical and numerical analysis show that carefully dispersion- and nonlinearity-
Zhixiang Deng, Jin Zhang, Dianyuan Fan, Lifu Zhang   +3 more
doaj   +1 more source

A Stretchable, Mechanically‐Interlocked Polyrotaxane Hydrogel for Wearable Motion and Electrophysiological Monitoring

Advanced Science, EarlyView.
A mechanically interlocked polyrotaxane hydrogel integrates sliding macrocycles within a covalent network, yielding skin‑like softness, high stretchability, robust adhesion, and stable ionic conductivity. This multifunctional interface enables simultaneous high‑fidelity monitoring of human motion and epidermal electrophysiological signals (ECG/EMG ...
Hao‐Zheng Huang, Yu‐Tao Zheng, Feng Chen, Jing‐Yi Li, Wen‐Hui Zhang, Liang Ding, Zhegang Huang, Wei Jiang, Li‐Ping Huang, Xing‐Can Shen   +9 more
wiley   +1 more source

Probing Steady‐State Carrier Properties and Charge Transport in Covalent Organic Framework by Frequency‐Domain Terahertz Spectroscopy

Angewandte Chemie, EarlyView.
This work reports a combined frequency‐domain and time‐domain terahertz (THz) spectroscopic approach to elucidate intrinsic carrier properties and transport mechanisms in framework materials over the extended 0.5–20 THz region. Subtle structural and chemical variations are shown to strongly influence THz charge‐transport behavior across the far ...
Satyapriya Nath, Saiprakash Rout, Mahalaxmi Samal, Snehal Haldankar, Md Habib Ahsan, Anol Mondal, Sudeep Tiwari, Adithyan Puthukkudi, Avani KV, Ashis K. Nandy, Shriganesh S. Prabhu, Himansu S. Biswal, Xinliang Feng, Bishnu P. Biswal   +13 more
wiley   +2 more sources