Results 31 to 40 of about 3,079 (223)

Positive Solutions of Elliptic Kirchhoff Equations

open access: yesAdvanced Nonlinear Studies, 2016
Abstract We prove several existence results for some nonlinear elliptic Kirchhoff equations.
Ambrosetti Antonio, Arcoya David
openaire   +3 more sources

On the Partial Analytical Solution of the Kirchhoff Equation [PDF]

open access: yes, 2015
13 Pages, 1 ...
Dominik Ludewig Michels   +4 more
openaire   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Analysis of errors in finite analytic numerical simulation of flow in unsaturated zone

open access: yesShui kexue jinzhan, 2016
Numerical methods are often used to solve Richards' equation due to the nonlinearity of the equation. Since Finite Analytic Method(FAM) can better keep the original physical properties of the Richards' equation,it has been widely used in the field of ...
ZHANG Zaiyong   +5 more
doaj   +1 more source

On a Model Connected with the Kirchhoff Equation

open access: yesJournal of Mathematical Analysis and Applications, 2002
The paper is devoted to the nonlinear hyperbolic Cauchy problem \(\partial_{tt}u(t,x)-(1+\int_{R^n}dy K(x-y)|\nabla_yu(t,y)|^2)\Delta_xu(t,x)=0\), \(u(0,x)=\varepsilon u_0(x)\), \((\partial_tu)(0,x)=\varepsilon u_1(x)\), \(\varepsilon>0\), \(t\geq 0\), \(x\in\mathbb{R}^n\), \((u_0,u_1)\in C_c^\infty(\mathbb{R}^n\times\mathbb{R}^n)\), \(n>3\).
openaire   +1 more source

Kirchhoff equations with strong damping [PDF]

open access: yesJournal of Evolution Equations, 2016
We consider Kirchhoff equations with strong damping, namely with a friction term which depends on a power of the "elastic" operator. We address local and global existence of solutions in two different regimes depending on the exponent in the friction term.
GHISI, MARINA, GOBBINO, MASSIMO
openaire   +2 more sources

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

open access: yesAdvanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk   +7 more
wiley   +1 more source

Global attractors for Kirchhoff wave equation with nonlinear damping and memory

open access: yesBoundary Value Problems, 2020
In this paper, we prove that the existence of global attractors for a Kirchhoff wave equation with nonlinear damping and memory.
Suli Zhang, Jianwen Zhang, Haiyan Wang
doaj   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

open access: yesAdvanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk   +3 more
wiley   +1 more source

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