Results 71 to 80 of about 160,425 (302)

EXISTENCE OF TRAVELING WAVE FRONTS FOR A GENERALIZED KDV–MKDV EQUATION

Mathematical Modelling and Analysis, 2014
This paper deals with the existence of traveling wave fronts for a generalized KdV–mKdV equation. We first establish the existence of traveling wave solutions for the equation without delay, and then we prove the existence of traveling wave fronts for the equation with a special local delay convolution kernel and a special nonlocal delay convolution ...
Xu, Ying, Du, Zengji
openaire   +4 more sources

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Singular limits of reaction diffusion equations and geometric flows with discontinuous velocity

, 2019
We consider the singular limit of a bistable reaction diffusion equation in the case when the velocity of the traveling wave solution depends on the space variable and converges to a discontinuous function.
De Zan, Cecilia, Soravia, Pierpaolo
core   +1 more source

Ultrasound in Women's Health: Mechanisms, Applications, and Emerging Opportunities

Advanced Materials, EarlyView.
As healthcare moves toward decentralization, ultrasound technologies are evolving from strictly imaging tools in clinical settings into versatile diagnostic and therapeutic platforms, with growing roles addressing women's health needs. This review highlights how ultrasound's underlying physical mechanisms can be harnessed to reduce disparities in women'
Sarah B. Ornellas, Bilal Kizilaslan, Aastha Shah, Jason F. Hou, Yoonsoo Shin, Alejandra Hernandez Moyers, Claudia Lozano, Canan Dagdeviren   +7 more
wiley   +1 more source

Fisher waves in the strong noise limit

, 2009
We investigate the effects of strong number fluctuations on traveling waves in the Fisher-Kolmogorov reaction-diffusion system. Our findings are in stark contrast to the commonly used deterministic and weak-noise approximations.
A. Kolmogorov, J. Murray, J. F. Wilkins, K. S. Korolev, M. Kimura, Oskar Hallatschek, R. Fisher   +6 more
core   +1 more source

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

Advanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro, Luca Bursi, Stefano Curtarolo, Arrigo Calzolari   +3 more
wiley   +1 more source

Numerical Investigation on Generation and Propagation Characteristics of Offshore Tsunami Wave under Landslide

Applied Sciences, 2020
Tsunamis induced by the landslide will divide into a traveling wave component propagating along the coastline and an offshore wave component propagating perpendicular to the coastline.
Junkai Sun, Yang Wang, Cheng Huang, Wanhu Wang, Hongbing Wang, Enjin Zhao   +5 more
doaj   +1 more source

Traveling Waves, Front Selection, and Exact Nontrivial Exponents in a Random Fragmentation Problem

, 2000
We study a random bisection problem where an initial interval of length x is cut into two random fragments at the first stage, then each of these two fragments is cut further, etc. We compute the probability P_n(x) that at the n-th stage, each of the 2^n
A. Kolmogorov, B. Derrida, B. Derrida, B. Pittel, C.-h. Liu, D. E. Knuth, D. M. Mueth, D. Sornette, E. Brunet, E. Brunet, E. J. Gumbel, H. M. Mahmoud, I. S. Gradshteyn, J. Cook, J. D. Murray, J. Galambos, J. M. Robson, J.-P. Bouchaud, L. Devroye, L. Devroye, L. Devroye, M. Bramson, M. C. Cross, M. Greiner, P. L. Krapivsky, P. Pelce, R. A. Fisher, R. van Zon, Satya N. Majumdar, U. Ebert, U. Ebert, W. I. Newman, W. I. Newman, W. van Saarloos, Ya. B. Zeldovich   +34 more
core   +1 more source

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Asimptotic convergence to travelling waves for the Stefan problem and related problems

Le Matematiche, 1991
We investigate the stability of traveling wave solutions of the one-dimensional supercooled Stefan problem and other related problem. A complete characterization of the set of initial data under which the free boundary is asymptotic to a traveling ...
Riccardo Ricci
doaj