Results 131 to 140 of about 484,592 (357)

Positive solutions of a boundary value problem with integral boundary conditions

Electronic Journal of Differential Equations, 2011
We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters $mu^*, lambda ...
Jeff R. L. Webb
doaj  

Hierarchically Porous Heteroatom‐co‐Doped Carbons for Enhanced Carbon Dioxide Capture

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Polythiophene‐derived N,S‐co‐doped carbons with tailored surface functionalities exhibit enhanced CO₂ adsorption. The efficiency of carbon dioxide (CO2) adsorption in carbonaceous materials is primarily influenced by their microporosity and thermodynamic affinity for CO2.
Choong‐Hee Kim, Seul‐Yi Lee, Soo‐Jin Park   +2 more
wiley   +1 more source

Nonlocal problems for hyperbolic equations from the viewpoint of strongly regular boundary conditions

Electronic Journal of Differential Equations, 2020
In this article, we consider a nonlocal problem for hyperbolic equation with integral conditions and show their close connection with the notion of strongly regular boundary conditions.
Ludmila S. Pulkina
doaj  

Torsional vibration of cracked carbon nanotubes with torsional restraints using Eringen’s nonlocal differential model

Journal of Low Frequency Noise, Vibration and Active Control, 2019
Free torsional vibration of cracked carbon nanotubes with elastic torsional boundary conditions is studied. Eringen’s nonlocal elasticity theory is used in the analysis. Two similar rotation functions are represented by two Fourier sine series.
Mustafa Ö Yayli, Suheyla Y Kandemir, Ali E Çerçevik   +2 more
doaj   +1 more source

Chebyshev iteration for the problem with nonlocal boundary condition

Lietuvos Matematikos Rinkinys, 2004
We considered Poisson differential equation with Dirichlet boundary conditions and one nonlocal boundary condition. Finite-difference scheme was investigated for this problem.
Mifodijus Sapagovas, Artūras Štikonas, Olga Štikonienė   +2 more
doaj   +1 more source

Role of boundary conditions in convergence and nonlocality of solutions to stochastic flow problems in bounded domains [PDF]

, 2000
F. Alejandro Bonilla, John H. Cushman
openalex   +1 more source

Flexoelectric Effects of Nanoscale Electrical Materials Under Dynamic Conditions

Energy Science &Engineering, EarlyView.
ABSTRACT Material flexoelectricity is due to strain gradients at the material's small dimensions, and nanoelectronics more precisely enhances the heightened sensitivity at this reduced scale. Below, the study presents a sensitivity analysis in active applications, such as sensors and actuators, to these effects, focusing on how flexoelectricity ...
Enaam Abdul khaliq Ali, Nadhim M. Faleh
wiley   +1 more source

Determination of the Appropriate Gradient Elasticity Theory for Bending Analysis of Nano-beams by Considering Boundary Conditions Effect

Latin American Journal of Solids and Structures
In the present paper, a critique study on some models available in the literature for bending analysis of nano-beams using the gradient elasticity theory is accomplished.
Mahmood Mehrdad Shokrieh, Iman Zibaei
doaj   +1 more source

Nonlocal active sound control for composite regions

Mathematical Methods in the Applied Sciences, EarlyView.
In the active sound control problem, additional sound sources, known as control sources, are implemented at the perimeter of a protected domain. The control sources can generate secondary sound inside the shielded domain, which attenuates incoming noise. This leads to an inverse source problem.
Nan Hu, Sergey Utyuzhnikov
wiley   +1 more source

On a boundary value problem for mixed type equation with nonlocal initial conditions in the rectangle

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The boundary value problem for mixed type equation with nonlocal initial conditions in integral form is considered. The main result states that the nonlocal problem is equivalent to the classical boundary value problem for a loaded equation.
S. V. Kirichenko
doaj   +1 more source