Results 11 to 20 of about 12,580 (256)

Numerical Quenching for Heat Equations with Coupled Nonlinear Boundary Flux [PDF]

open access: yesInternational Journal of Analysis and Applications, 2019
In this paper, we study a numerical approximation of the following problem ut = uxx, vt = vxx, 0 < x < 1, 0 < t < T; ux(0, t) = u−m(0, t) + v−p(0, t), vx(0, t) = u−q (0, t) + v−n(0, t) and ux(1, t) = vx(1, t) = 0, 0 < t < T, where m, p,
Kouame Beranger Edja   +3 more
doaj   +4 more sources

Continuity of the quenching time in a semilinear heat equation with Neumann boundary condition [PDF]

open access: yesJournal of Numerical Analysis and Approximation Theory, 2010
This paper concerns the study of a semilinear parabolic equation subject to Neumann boundary conditions and positive initial datum. Under some assumptions, we show that the solution of the above problem quenches in a finite time and estimate its ...
Firmin K. N'gohisse, Théodore K. Boni
doaj   +4 more sources

NUMERICAL SIMULATION OF THE HEAT TREATMENT PROCESS FOR 100Cr6 STEEL [PDF]

open access: yesActa Metallurgica Slovaca, 2017
The success of quenching process depended heavily on the suitable choice of a quenching media. In this work, a numerical simulation of the process of quenching C-ring sample of 100Cr6 steel was discussed.
Xuan Thi Tran   +2 more
doaj   +2 more sources

Quenching for Discretizations of a Nonlocal Parabolic Problem with Neumann Boundary Condition [PDF]

open access: yesCubo, 2010
In this paper, under some conditions, we show that the solution of a discrete form of a nonlocal parabolic problem quenches in a finite time and estimate its numerical quenching time.
Théodore K Boni, Diabaté Nabongo
doaj   +2 more sources

Numerical quenching for the semilinear heat equation with a singular absorption [PDF]

open access: yes, 2009
In this paper we study the numerical approximation for the heat equation with a singular absorption. We prove that the numerical quenching rate coincides with the continuous one.
Ferreira, Raúl
core   +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

Quenching for semidiscretizations of a semilinear heat equation with Dirichlet and Neumann boundary conditions [PDF]

open access: yes, 2008
summary:This paper concerns the study of the numerical approximation for the following boundary value problem: $$ \cases u_t(x,t)-u_{xx}(x,t) = -u^{-p}(x,t), & 00, \ u_{x}(0,t)=0, & u(1,t)=1, t>0, \ u(x,0)=u_{0}(x)>0, & 0\leq x \leq 1, \endcases ...
Boni, Théodore K.   +2 more
core   +1 more source

Numerical investigation of non-homogenous plastic deformation in quenching process [PDF]

open access: yes, 2001
The aim of the study is to investigate the evolution of internal stresses and non-homogeneous plastic deformation in quenching by numerical simulation. This paper presents the finite element model of quenching of axisymmetric components and the results ...
Tekkaya, A. Erman, Gür, Cemil Hakan
core   +1 more source

Study of Tailored Hot Stamping Process on Advanced High-Strength Steels

open access: yesJournal of Manufacturing and Materials Processing, 2022
Ultra-high-strength steels (UHSS) combined with tailor-stamping technologies are increasingly being adopted in automotive body production due to crashworthiness improvements and part weight reduction, which meet safety and energy saving demands. Recently,
Maria Emanuela Palmieri   +2 more
doaj   +1 more source

Numerical simulation of heat transfer during leaf spring industrial quenching process [PDF]

open access: yes, 2018
This study is carried out in partnership with the company CAVEO, manufacturer of leaf springs for vehicles. It concerns the development of a numerical model intended to follow the space-time temperature evolution of a leaf during two processing ...
Moez Ben Jaber   +4 more
core   +1 more source

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