Results 51 to 60 of about 3,638 (308)

A solvability conditions of mixed problems for equations of parabolic type with involution

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
In this work the partial differential equations with involutions are considered. The mixed problems for the parabolic type equation, with constant and variable constants, corresponding to the Dirichlet type boundary conditions is investigated.
A.A. Sarsenbi
doaj   +1 more source

ABOUT MODEL OF LOADED PARTIAL HYPERBOLIC-PARABOLIC DIFFERENTIAL EQUATION OF SECOND ORDER [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2015
We studied a models of loaded equation of mixed hyperbolic-parabolic type with characteristicly and not characteristicly modifying line. For the proposed equation models boundary value problem is considered and solutions is written out.
K.U. Khubiev
doaj   +1 more source

A numerical method for parabolic complementarity problem

open access: yesElectronic Research Archive, 2023
In this paper, we study the numerical solution of a parabolic complementarity problem which is a widely used model in many fields, such as option pricing, risk measures, etc.
Haiyan Song, Fei Sun
doaj   +1 more source

An inverse problem for a parabolic partial differential equation

open access: yesRocky Mountain Journal of Mathematics, 1983
On cherche le coefficient a(x) ainsi que la temperature u(x,t) dans le probleme aux valeurs initiales suivant: u t (x,t)-u xx (x,t)+u(x)u(x,t)=o ...
openaire   +3 more sources

Emerging Opportunities of Colloidal Quantum Dots for Photocatalytic Organic Transformations

open access: yesAdvanced Materials, EarlyView.
Colloidal quantum dots (QDs) have gained significant attention as photocatalysts in organic transformations in recent years. This review highlights QDs’ distinctive features, including the quantum size effect, compositional and structural diversity, tunable surface chemistry, and photophysics.
Qinxuan Cao   +4 more
wiley   +1 more source

Computing optimal control with a quasilinear parabolic partial differential equation [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
This paper presents the numerical solution of a constrained optimal control problem (COCP) for quasilinear parabolic equations. The COCP is converted to unconstrained optimization problem (UOCP) by applying the exterior penalty function method. Necessary
M. H. Farag
doaj  

On the Numerical Solution of Fractional Parabolic Partial Differential Equations with the Dirichlet Condition

open access: yesDiscrete Dynamics in Nature and Society, 2012
The first and second order of accuracy stable difference schemes for the numerical solution of the mixed problem for the fractional parabolic equation are presented.
Allaberen Ashyralyev, Zafer Cakir
doaj   +1 more source

Discovery of a New Cu‐Based Chalcogenide with High zT Near Room Temperature: Low‐Cost Alternative for the Bi2Te3‐Based Thermoelectrics

open access: yesAdvanced Materials, EarlyView.
This study reports the discovery of a stable γ‐phase in Cu6Te3‐xS1+x, achieving high thermoelectric performance with a Seebeck coefficient up to 200 µVK⁻¹ and ultralow thermal conductivity (≈0.25 Wm⁻¹K⁻¹). The material eliminates phase transitions, exhibits a zT of ≈1.1 at 500 K, and offers a cost‐effective, eco‐friendly alternative for waste heat ...
Oleksandr Cherniushok   +3 more
wiley   +1 more source

Dynamic Microfluidic Synthesis of Zinc Oxide Nanowires: Impact of Channel Architecture on Growth Homogeneity and Uniformity

open access: yesAdvanced Materials Interfaces, EarlyView.
In situ synthesis of nanomaterials within microfluidic reactors in dynamic mode boosts the growth rate. Notably, microfluidic reactors with optimized tree‐branched microchannel networks enable outstanding homogeneity of 99% and excellent nanowires uniformity.
Mazen Erfan   +5 more
wiley   +1 more source

Mixed problem for the singular partial differential equation of parabolic type

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2018
The scheme for solving of a mixed problem is proposed for a differential equation \[a(x)\frac{\partial T}{\partial \tau}= \frac{\partial}{\partial x} \left(c(x)\frac{\partial T}{\partial x}\right) -g(x)\, T\] with coefficients $a(x)$, $g(x)$ that are the
O.V. Makhnei
doaj   +1 more source

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