Results 1 to 10 of about 16,000,085 (252)

Numerical quenching for a semilinear parabolic equation [PDF]

open access: yesMathematical Modelling and Analysis, 2008
This paper concerns the study of the numerical approximation for the nonlinear parabolic boundary value problem with the source term leading to the quenching in finite time.
Diabate Nabongo, Theodore K. Boni
doaj   +2 more sources

Numerical Study on the Heat Transfer of Confined Air-Jet Quenching of Steel Sheets

open access: yesMetals
The high flatness quenching of ultra-high-strength steel sheets is a technical problem in the steel industry. In this study, the traditional water and spray quenching methods were abandoned, and the roller-constrained slot air-jet quenching method was ...
Yanqi Ye   +3 more
doaj   +3 more sources

Quenching for discretizations of a semilinear parabolic equation with nonlinear boundary outflux

open access: yesJournal of Numerical Analysis and Approximation Theory, 2023
In this paper, we study numerical approximations of a semilinear parabolic problem in one-dimension, of which the nonlinearity appears both in source term and in Neumann boundary condition.
Kouakou Cyrille N'Dri   +3 more
doaj   +1 more source

Time-dependent numerical renormalization group method for multiple quenches: Towards exact results for the long-time limit of thermodynamic observables and spectral functions [PDF]

open access: yesPhysical Review B, 2018
We develop an alternative time-dependent numerical renormalization group (TDNRG) formalism for multiple quenches and implement it to study the response of a quantum impurity system to a general pulse. Within this approach, we reduce the contribution of the NRG approximation to numerical errors in the time evolution of observables by a formulation that ...
Nghiem, H. T. M., Costi, Theodoulos
openaire   +3 more sources

A Comparative Study of the Numerical Approximations of the Quenching Time for a Nonlinear Reaction-Diffusion Equation

open access: yesFundamental Journal of Mathematics and Applications, 2020
In this paper, we study the numerical methods for solving a nonlinear reaction-diffusion model for the polarization phenomena in ionic conductors. In particular, we propose three types of numerical methods, including the finite difference, cubic B-spline collocation, and local discontinuous Galerkin method, to approximate the quenching time of the ...
Frederick JONES, He YANG
openaire   +3 more sources

Quenching for a Reaction-Diffusion System with Coupled Inner Singular Absorption Terms

open access: yesBoundary Value Problems, 2010
we devote to investigate the quenching phenomenon for a reaction-diffusion system with coupled singular absorption terms, ut=Δu−u−p1v−q1, vt=Δv−u−p2v−q2.
Shouming Zhou, Chunlai Mu
doaj   +2 more sources

Uniform quenching processes in a holographic s + p model with reentrance

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We study the homogenous quenching processes in a holographic s + p model with reentrant phase transitions. We first realize the reentrant phase transition in the holographic model in probe limit and draw the phase diagram.
Chuan-Yin Xia   +3 more
doaj   +1 more source

Quench sensitivity and isothermal transformation behavior of 7075-H18 aluminum alloy sheet

open access: yesCailiao gongcheng, 2022
The 7075-H18 high-strength aluminum alloy sheet with a thickness of 2 mm is selected as a research object. The quench sensitivity, isothermal phase transformation and kinetics of the alloy were systematically studied via a variety of experimental and ...
WANG Gang, GU Zhengwei, LI Xin, YU Ge
doaj   +1 more source

Fluorescence-based primary productivity estimates are influenced by non-photochemical quenching dynamics in Arctic phytoplankton

open access: yesFrontiers in Microbiology, 2023
Chlorophyll fluorescence-based estimates of primary productivity typically include dark or low-light pre-treatments to relax non-photochemical quenching (NPQ), a process that influences the relationship between PSII photochemistry and fluorescence yields.
Yayla Sezginer   +4 more
doaj   +1 more source

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