Results 151 to 160 of about 130,152 (295)

An algorithm for the eigenvalue perturbation problem [PDF]

, 2000
Claude-Pierre Jeannerod
openalex   +1 more source

Ellipsoid‐Based Interval‐Type Uncertainty Model Updating Based on Riemannian Manifold and Gaussian Process Model

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Modern engineering systems require advanced uncertainty‐aware model updating methods that address parameter correlations beyond conventional interval analysis. This paper proposes a novel framework integrating Riemannian manifold theory with Gaussian Process Regression (GPR) for systems governed by Symmetric Positive‐Definite (SPD) matrix ...
Yanhe Tao, Qintao Guo, Jin Zhou, Cheng Yi   +3 more
wiley   +1 more source

A Singular-Perturbation Analysis of the Burning-Rate Eigenvalue for a Two-Temperature Model of Deflagrations in Confined Porous Energetic Materials [PDF]

, 2001
Stephen B. Margolis, M.R. Baer
openalex   +1 more source

Effect of Magnetic Field and Temperature on the Excess Minority Carrier Density in the Base of a Radial Junction Solar Cell

Nano Select, EarlyView.
This study explores how magnetic field and temperature influence excess minority carrier density in a radial‐junction silicon solar cell. Using an analytical model based on Bessel functions, key trends are revealed, including thermal insensitivity in a specific magnetic field range.
Moussa Ouedraogo, Nazé Yacouba Traore, Alain Diasso, Raguilignaba Sam, François Zougmore   +4 more
wiley   +1 more source

Accurate modal perturbation in non‐self‐adjoint eigenvalue problem [PDF]

, 2001
X. L. Liu
openalex   +1 more source

Domain Perturbations, Shift of Eigenvalues and Capacity

Journal of Functional Analysis, 2000
The notion of capacity is a useful tool in measuring the magnitude of the shift of the spectral bound for the Laplace operator in \(L^{2}(\Omega)\) \((\Omega\subset R^{d}\) or a Riemannian manifold) at the domain perturbation [\textit{M. Flucher}, J. Math. Anal. Appl. 193, No. 1, 169-199 (1995; Zbl 0836.35105)].
openaire   +3 more sources

Optimal Adaptive Reinforcement Learning Control for a Convection‐Reaction Distributed Parameter System

Optimal Control Applications and Methods, EarlyView.
Optimal adaptive reinforcement learning control using an actor‐critic architecture. The controller learns optimal control policies online from data measured along the trajectories of a plug flow system ABSTRACT This article is devoted to optimal adaptive control for a distributed parameter convection‐reaction system by reinforcement learning (RL ...
Abdellaziz Binid, Ilyasse Aksikas
wiley   +1 more source

A Critical Review of Pole Clustering Techniques: Common Pitfalls, Extension to MIMO and New Enhanced Variant of the Cuckoo Search Algorithm

Optimal Control Applications and Methods, EarlyView.
Enhanced Cuckoo Search for Model Order Reduction ABSTRACT This article presents a critical review of classical and modern pole clustering techniques for model order reduction in high‐order systems. It highlights key limitations and common pitfalls encountered in traditional approaches, especially when extended to Multi‐Input Multi‐Output (MIMO) systems.
Kamel Ben Slimane, Zied Tmar, Mongi Besbes   +2 more
wiley   +1 more source

An analyticity result for the dependence of multiple eigenvalues and eigenspaces of the laplace operator upon perturbation of the domain [PDF]

, 2002
Pier Domenico Lamberti, Massimo Lanza de Cristoforis   +1 more
openalex   +1 more source

Coadaptation shapes ecological interactions in mixotroph‐resource systems

Oikos, EarlyView.
Mixotrophs combining autotrophy and heterotrophy are ubiquitous in aquatic environments and significantly influence ecosystem functioning. Mixotrophs may adapt their nutritional mode in response to selection, becoming more heterotrophic or more autotrophic over time.
Xiaoxiao Li, Ursula Gaedke, Alexander Wacker, Brian Schulze, Zhifeng Yang, Stefanie Moorthi, Sabine Flöder, Toni Klauschies   +7 more
wiley   +1 more source