Results 31 to 40 of about 837 (219)

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane, Salama Makni, Mourad Kchaou, Ahmed El Hajjaji   +3 more
wiley   +1 more source

Analysis of a class of penalty methods for computing singular minimizers [PDF]

, 2010
Amongst the more exciting phenomena in the field of nonlinear partial differential equations is the Lavrentiev phenomenon which occurs in the calculus of variations.
Ortner, Christoph, Carstensen, Carsten
core  

Existence results for impulsive fractional differential equations with $p$-Laplacian via variational methods [PDF]

, 2022
summary:This paper presents several sufficient conditions for the existence of at least one classical solution to impulsive fractional differential equations with a $p$-Laplacian and Dirichlet boundary conditions.
Kong, Lingju, Graef, John R., Heidarkhani, Shapour, Moradi, Shahin   +3 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Infinitely many solutions for a Neumann elliptic system with ( p ( ⋅ ) , q ( ⋅ ) ) $(p(\cdot ), q(\cdot ))$ -Laplacian type operator

Boundary Value Problems
This paper is concerned with a system of nonlinear elliptic equations driven by ( p ( ⋅ ) , q ( ⋅ ) ) $(p(\cdot ), q(\cdot ))$ -Laplacian type operators with variable exponents, subject to homogeneous Neumann boundary conditions.
Ahmed Ahmed, Khaled Kefi
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Resultados de existência para equações elípticas com termos singulares [PDF]

, 2013
Doutoramento em Matemática e AplicaçõesEsta dissertação estuda em detalhe três problemas elípticos: (I) uma classe de equações que envolve o operador Laplaciano, um termo singular e nãolinearidade com o exponente crítico de Sobolev, (II) uma classe de ...
Murillo, Kelly Patricia
core   +1 more source

Existence of entire solutions for Schrödinger–Hardy systems involving two fractional operators [PDF]

, 2017
This paper deals with the existence of nontrivial nonnegative solutions of Schrödinger-Hardy systems driven by two possibly different fractional p-Laplacian operators, via various variational methods. The main features of the paper are the presence of
Fiscella, Alessio, Patrizia Pucci, SALDI, SARA, PUCCI, Patrizia, Alessio Fiscella, Sara Saldi   +5 more
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Local Fractional Variational Iteration Method for Solving Nonlinear Partial Differential Equations within Local Fractional Operators [PDF]

, 2015
In this article, the local fractional variational iteration method is proposed to solve nonlinear partial differential equations within local fractional derivative operators.
Jafari, Hossein, Jassim, Hassan K.
core   +1 more source