Results 81 to 90 of about 12,629 (265)

Analysis of Piezoelectric Semiconducting Solids by Meshless Method

Journal of Mechanical Engineering, 2015
In this paper, a meshless local Petrov-Galerkin (MLPG) method is proposed to calculate mechanical and electrical responses of three-dimensional piezoelectric semiconductors under static load.
Staňák P., Sládek J., Sládek V.
doaj   +1 more source

A third-order non-local problem with boundary integral condition for a parabolic equation

International Journal of Applied Mathematical Research, 2015
The present paper is devoted to a proof of the existence and  uniqueness of a third-order non-local problem with boundary integral condition for a parabolic equation . The proof is based in two sided a priori estimates and the fact that the range of operator generalized by the considered problem is dense.
Bahloul Tarek, Bouzit Mouhammed
openaire   +2 more sources

Physician‐Scientist Pipeline for Pediatric Rheumatology: The Current Landscape and Future Perspectives

Arthritis Care &Research, EarlyView.
Over the past 50 years, the science of pediatric rheumatology has grown exponentially due to an expansion in the understanding of complex rheumatic conditions and a surge in novel targeted therapeutics. Physician‐scientists in the field of pediatric rheumatology have played major roles in these advancements that have improved the care of children ...
Ekemini A. Ogbu, Linda T. Hiraki, Mara L. Becker   +2 more
wiley   +1 more source

Existence of solutions to non-local problems for parabolic-hyperbolic equations with three lines of type changing

Electronic Journal of Differential Equations, 2013
In this work, we study a boundary problem with non-local conditions, by relating values of the unknown function with various characteristics. The parabolic-hyperbolic equation with three lines of type changing is equivalently reduced to a system of ...
Erkinjon T. Karimov, Akmal I. Sotvoldiyev   +1 more
doaj  

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Fredholm integral equations neural operator (FIE-NO) for data-driven boundary value problems

Machine Learning. Engineering
In this paper, we present a novel neural operator method, termed FIE-NO, inspired by Fredholm integral equations (FIE) and random Fourier features (RFF), tailored for solving data-driven boundary value problems (BVPs) with irregular boundaries.
Haoyang Jiang, Yongzhi Qu
doaj   +1 more source

Investigation of thermal radiation on traditional Jeffery–Hamel flow to stretchable convergent/divergent channels

Case Studies in Thermal Engineering, 2015
In the present paper, the influence of thermal radiation on the classical Jeffery–Hamel flow due to a point source or sink in convergent/divergent channels is investigated for the case where the stationary channel walls are permitted to stretch or shrink.
M. Barzegar Gerdroodbary, M. Rahimi Takami, D.D. Ganji   +2 more
doaj   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Local uniqueness of positive solutions for a coupled system of fractional differential equations with integral boundary conditions

Advances in Difference Equations, 2017
In this paper, we study a coupled system of fractional boundary value problems subject to integral boundary conditions. By applying a recent fixed point theorem in ordered Banach spaces, we investigate the local existence and uniqueness of positive ...
Chen Yang, Chengbo Zhai, Lingling Zhang
doaj   +1 more source

A Local Hypersingular Boundary Integral Equation Method Using a Triangular Background Mesh

Computer Modeling in Engineering & Sciences, 2008
In this paper, a new meshless Local Hypersingular Boundary Integral Equation method is presented for the analysis of two-dimensional elastostatic problems. The elastic domain is discretized by placing arbitrarily nodes on its boundary and interior. Given this set of nodes, the corresponding map of background triangles is constructed through a common ...
openaire   +1 more source