Results 71 to 80 of about 7,785,042 (211)
Electronic Journal of Differential Equations, 2007 In this paper sufficient conditions are obtained so that every solution of $$ (y(t)- p(t)y(t-au))'+ Q(t)G(y(t-sigma))-U(t)G(y(t-alpha)) = f(t) $$ tends to zero or to $pm infty$ as $t$ tends to $infty$, where $au ,sigma ,alpha$ are positive real numbers, $
Prayag Prasad Mishra +2 more
doaj
Wind Energy, Volume 28, Issue 5, May 2025.ABSTRACT A thorough understanding of turbine wakes is essential for various aspects of wind energy, including turbine siting, load evaluation, and wind farm control. However, high‐fidelity time‐domain computational fluid dynamics (CFD) simulations that consider all possible turbulent inflow wind conditions are computationally expensive and impractical ...
Wenhao Xu, Gaohua Li, Feng Guo, Zhen Gao
wiley +1 more source
Non-oscillatory behaviour of higher order functional differential equations of neutral type
Electronic Journal of Differential Equations, 2007 In this paper, we obtain sufficient conditions so that the neutral functional differential equation $$displaylines{ ig[r(t) [y(t)-p(t)y(au (t))]'ig]^{(n-1)} + q(t) G(y(h(t))) = f(t) }$$ has a bounded and positive solution.
Laxmi Narayan Padhy +3 more
doaj
Awakened oscillations in coupled consumer-resource pairs [PDF]
, 2014 The paper concerns two interacting consumer-resource pairs based on chemostat-like equations under the assumption that the dynamics of the resource is considerably slower than that of the consumer.
Mustafin, Almaz
core +3 more sources
Astrophysical Journal, 2018 We investigate the behavior of acoustic waves in a nonisothermal atmosphere based on the analytical solution of the wave equation. Specifically, we consider acoustic waves propagating upwardly in a simple nonisothermal layer where temperature either ...
J. Chae, Y. Litvinenko
semanticscholar +1 more source
Numerical modelling investigation of finite‐amplitude subaqueous dune saturation
Earth Surface Processes and Landforms, Volume 50, Issue 4, Page 1-19, 30 March 2025.Our work demonstrates how finite amplitude dunes in limited depth flows reach a saturation state, preventing their growth. Saturation occurs when the intensity of the turbulent mixing reaches critical thresholds, enhanced by the confinement, reducing inertia and stirring large quantities of suspended sediment downstream of dune crests.
Arnaud Doré, Giovanni Coco
wiley +1 more source
On the integral characterization of principal solutions for half-linear ODE [PDF]
, 2013 We discuss a new integral characterization of principal solutions for half-linear differential equations, introduced in the recent paper of S. Fisnarova and R. Marik, Nonlinear Anal. 74 (2011), 6427-6433.
Cecchi, M. +3 more
core +2 more sources
Existence of nonoscillatory solutions to second-order nonlinear neutral difference equations
, 2015 We study a class of second-order neutral delay difference equations with positive and negative coefficients ∆(rn(∆(xn + pxn−m))) + pnf(xn−k)− qng(xn−l) = 0, n = n0, n0 + 1, . . . , where p ∈ R, m, k, l, n0 ∈ N , pn, qn, rn ∈ R+, f, g ∈ C(R,R) with xf(x) >
Yazhou Tian, Yuanli Cai, Tongxing Li
semanticscholar +1 more source
A Hybrid Cosmological Hydrodynamic/N-Body Code Based on a Weighted Essentially Nonoscillatory Scheme [PDF]
, 2004 We present a newly developed cosmological hydrodynamics code based on weighted essentially nonoscillatory (WENO) schemes for hyperbolic conservation laws.
Long-long Feng +6 more
semanticscholar +1 more source
Mathematical Methods in the Applied Sciences, Volume 48, Issue 4, Page 5315-5324, 15 March 2025.We investigate the oscillatory behavior of solutions of second‐order linear differential equations with impulses. These equations can be categorized into two types: canonical and non‐canonical. This study examines the canonical and non‐canonical impulsive differential equations in connection with the famous Leighton‐type oscillation theorem.
A. Zafer, S. Doğru Akgöl
wiley +1 more source