Results 91 to 100 of about 178,428 (365)
Mathematics, 2023 In this paper, the fractional order differential terms are introduced into a horizontal nonlinear dynamics model of a cold mill roller system. The resonance characteristics of the roller system under high-frequency and low-frequency excitation signals ...
Li Jiang, Tao Wang, Qing-Xue Huang
doaj +1 more source
, 2014 Travelling wave solutions of a two-dimensional gaseous star with self-gravity and surface tension are considered. The star rotates along a clockwise direction with a travelling speed.
S. Deng
semanticscholar +1 more source
A normal form for excitable media
, 2006 We present a normal form for travelling waves in one-dimensional excitable media in form of a differential delay equation. The normal form is built around the well-known saddle-node bifurcation generically present in excitable media.
Georg A. Gottwald +4 more
core +2 more sources
Advanced Theory and Simulations, EarlyView.Computational fluid dynamics analyses assess the upstream locomotion performance of anisotropic microrollers with varying height‐to‐width ratios. Observing their successful upstream locomotion in veins, their performance in hepatic circulation is investigated for treating primary liver cancer.
Burak Arslan +8 more
wiley +1 more source
The influence of a pitchfork bifurcation of the critical points of a symmetric caldera potential energy surface on dynamical matching [PDF]
, 2021 Y. Geng +3 more
semanticscholar +1 more source
Multi-site breathers in Klein-Gordon lattices: stability, resonances, and bifurcations
, 2013 We prove the most general theorem about spectral stability of multi-site breathers in the discrete Klein-Gordon equation with a small coupling constant.
Anton Sakovich +11 more
core +1 more source
Label‐Free Dual‐Modal Photoacoustic/Ultrasound Localization Imaging for Studying Acute Kidney Injury
Advanced Science, EarlyView.This work develops a 3D label‐free photoacoustic/super‐resolution ultrasound imaging system as a comprehensive non‐invasive tool for acute kidney injury (AKI) study. This technique visualizes the intricate structure of renal microvessels and provides critical physiological insights, including renal hemodynamics and oxygenation.
Shensheng Zhao +5 more
wiley +1 more source
Advanced Science, EarlyView.Polyglutamine (polyQ) tract expansion (≥ 36 amino acids) within the N‐terminal region of the Huntingtin protein (Httex1) causes Huntington's disease (HD), for which the underlying causes are not well‐understood. The authors performed computer simulations to understand the cause of HD at the molecular level.
Priyesh Mohanty +2 more
wiley +1 more source
Stable and non-symmetric pitchfork bifurcations [PDF]
arXiv, 2018 In this paper, we present a criterion for pitchfork bifurcation of smooth vector fields based on a topological argument. Our result expands Rajapakse and Smale's result \cite{RS2} significantly. Based on our criterion, we present a class of families of non-symmetric vector fields undergoing a pitchfork bifurcation.
arxiv
Collision and Annihilation of Relative Equilibrium Points Around Asteroids with a Changing Parameter [PDF]
, 2015 In this work, we investigate the bifurcations of relative equilibria in the gravitational potential of asteroids. A theorem concerning a conserved quantity, which is about the eigenvalues and number of relative equilibria, is presented and proved. The conserved quantity can restrict the number of non-degenerate equilibria in the gravitational potential
arxiv +1 more source