Results 81 to 90 of about 4,163,759 (201)
On localized vegetation patterns, fairy circles and localized patches in arid landscapes
, 2015 We investigate the formation of localized structures with a varying width in one and two-dimensional systems. The mechanism of stabilization is attributed to strong nonlocal coupling mediated by a Lorentzian type of Kernel.
Clerc, M. G. +3 more
core +1 more source
Sufficient conditions for nonexistence of gradient blow-up for nonlinear parabolic equations
Electronic Journal of Differential Equations, 2007 In this paper we study the initial-boundary value problems for nonlinear parabolic equations without Bernstein-Nagumo condition. Sufficient conditions guaranteeing the nonexistence of gradient blow-up are formulated.
Aris S. Tersenov
doaj
QRS Detection in Noisy Electrocardiogram Based on Multi‐Parameter Constrained Stochastic Resonance
IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 11, Page 1745-1756, November 2025.One major challenge of QRS wave detection is the deleterious impact of inevitable noise in electrocardiogram (ECG) signals, which can deteriorate the detection performance of algorithms. Previous research has shown a nonlinear monostable potential‐based algorithm for enhancing the QRS complex in a noisy environment. Its main mechanism is the stochastic
Wenyu Shang, Masaki Sekino
wiley +1 more source
Existence of solutions to infinite elastic beam equations with unbounded nonlinearities
Electronic Journal of Differential Equations, 2017 This article concerns the existence of unbounded solutions to fourth-order boundary-value problem on the half-line with two-point boundary conditions. One-sided Nagumo condition plays a special role as it allows an asymmetric unbounded behavior on the
Hugo Carrasco, Feliz Minhos
doaj
International Journal of Language &Communication Disorders, Volume 60, Issue 6, November/December 2025.ABSTRACT Background Motor–speech skills slow down with age, but health care professionals lack normative data, especially on the vastly growing population of very old (VO) speakers. The execution of different motor–speech tasks requires both fine‐motoric and cognitive abilities.
Sonja Alantie +2 more
wiley +1 more source
Global Picture of Lunar Basalt Chronology Based on the Automatic Classification of Craters
Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.Abstract One major pathway for studying lunar volcanism evolution is to construct a timeline for the emplacement of basalts. The crater size‐frequency distribution (CSFD) is a pivotal method for dating lunar basalt units. Building upon two previously published lunar impact crater databases (diameters ≥1–2 km), this study integrated these databases and ...
Lan Jin +9 more
wiley +1 more source
Reduced Order Optimal Control of the Convective FitzHugh-Nagumo Equation
, 2019 In this paper, we compare three model order reduction methods: the proper orthogonal decomposition (POD), discrete empirical interpolation method (DEIM) and dynamic mode decomposition (DMD) for the optimal control of the convective FitzHugh-Nagumo (FHN ...
Karasözen, Bülent +2 more
core +1 more source
Asian Politics &Policy, Volume 17, Issue 4, October 2025.ABSTRACT In response to the Covid‐19 pandemic, the governments of Hong Kong, Taiwan, Japan, and South Korea implemented direct cash disbursements to citizens in 2020 and 2021. This paper assesses whether these near‐simultaneous universal cash payout schemes presage a broader transformation in the welfare paradigm of these East Asian economies ...
Daniel Chi Fung Yeung +3 more
wiley +1 more source
Journal of Mathematical Analysis and Applications, 2005 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Grossinho, Maria do Rosário +2 more
openaire +3 more sources
Error analysis of Crank–Nicolson-FEM for Fitzhugh–Nagumo system with Robin boundary conditions
Partial Differential Equations in Applied MathematicsWe investigate the convergence properties Crank–Nicolson scheme coupled with the finite element approximation of the Fitzhugh–Nagumo system. This model describes the dynamics of excitable media, such as nerve cells, and has applications in various fields, including neuroscience and cardiac modeling.
S. Dawe +3 more
openaire +2 more sources