Results 131 to 140 of about 7,728,347 (284)

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely   +7 more
wiley   +1 more source

GLOBAL ASYMPTOTIC STABILITY ANALYSIS OF A SECOND-ORDER DUFFING EQUATION WITH POISON STABLE COEFFICIENT [PDF]

open access: yes
This paper presents a comprehensive analysis of the global asymptotic stability of solutions to a second-order Duffing-type differential equation with a Poisson-stable coefficient.
I. G., Ezugorie
core   +1 more source

Hybrid Inertial–Centrifugal Gas–Liquid Separator: CFD‐Driven Optimization Using Coupled Discrete Phase and Wall‐Film Modeling With Response Surface Methodology

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Efficient removal of liquid aerosols from compressed gas streams is essential in chemical and energy processes. Conventional separators relying on a single mechanism (inertial or centrifugal) struggle to capture both fine and coarse droplets simultaneously.
Son Ung Kang   +3 more
wiley   +1 more source

Residual Strength Prediction of Chemically Reactive Two‐Phase Nanofluid Flow in a Bingham–Papanastasiou Rheological Theory Using a Morlet‐Based Wavelet Neural Network Approach

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The behavior of nanofluid flow involving a zero‐mass flux condition has received considerable interest because of a realistic scenario. In reality, this condition confines the optimistic accumulation or disappearance of nanoparticles past a sheet, constructing a more physically realistic demonstration through several applications, such as heat
Umair Khan   +3 more
wiley   +1 more source

Streamline and Isotherm Visual Analysis of Darcy–Forchheimer von Karman Spinning Flow of Maxwell Fluid Over a Stretching Disk With Quadratic Temperature‐Dependent Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This research paper provides an extensive study of the effects of Darcy–Forchheimer von‐Karman spinning flow of Maxwell fluid across a stretching disk including the effect of heat generation based on a nonlinear function of temperature. The flow system is influenced by thermal radiations and Arrhenius activation energy.
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

Dynamics of a Reaction-diffusion Multi-group Infectious Disease Model Featuring Partial Degeneracy

open access: yesJournal of Harbin University of Science and Technology
Based on the spatial heterogeneity and the differences in the range of human activities, a reaction-diffusion multi-group infectious disease model with partial degeneracy is introduced and the threshold dynamical behavior is discussed using the theory of
ZENG Bin   +3 more
doaj   +1 more source

Global asymptotic stability in a periodic integro-differential system

open access: yesTohoku Mathematical Journal, 1985
This paper deals with generalized Lotka-Volterra equations of the form \[ dx_ i(t)/dt=x_ i(t)\{b_ i(t)-a_{ii}(t)x_ i(t)- \sum^{n}_{j=1,j\neq i}a_{ij}(t)\int^{t}_{-\infty}K_{ij}(t- u)x_ j(u)du\}, \] i\(=1,2,...,n\); \(t>t_ 0\); \(t_ 0\in (- \infty,\infty)\) in which \(b_ i\), \(a_{ij}\) \((i,j=1,2,...,n)\) are continuous, periodic, and positive.
openaire   +2 more sources

Relaxed persistent Flow/Jump Conditions for Uniform Global Asymptotic Stability

open access: yes, 2014
International audienceFor hybrid systems, sufficient conditions are derived for the uniform global asymptotic stability of a given closed set. These conditions are written in terms of a Lyapunov function candidate and assume a semiglobal practical ...
Prieur, Christophe   +2 more
core   +1 more source

MHD Maxwell Hybrid Nanofluid Transport Featuring Solar Radiation and Thermo‐Diffusive Impacts Over a Permeable Slanted Stretching Sheet

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Hybrid nanofluids have emerged as next‐generation working fluids for advanced engineering application due to their superior heat transport capability in relation to the conventional nanofluids. Motivated by the rising demand for accurate prediction of transport phenomena under realistic operating situations, the present study examines the ...
B. Prabhakar Reddy   +3 more
wiley   +1 more source

Stability and global attractivity of a generalized Lorenz system

open access: yes四川大学学报. 自然科学版
In this paper, global stability of the equilibrium point of a generalized Lorenz system is studied, sufficient and necessary conditions for the global exponential stability, the global asymptotic stability and the instability of the equilibrium point are
ZHU Chong-Han   +2 more
doaj  

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