Results 41 to 50 of about 69,841 (251)

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Measurement and Analysis of Scattering From Slightly Rough Dielectric Surfaces in 100- and 300-GHz Bands

IEEE Access
Due to the extremely short wavelengths of terahertz waves, even slight surface roughness on everyday dielectric materials can significantly influence future terahertz-wave propagation and communication systems.
Riku Yoshino, Jerdvisanop Chakarothai, Keizo Inagaki, Tetsuya Kawanishi   +3 more
doaj   +1 more source

Imaging polarizable dipoles

, 2017
We present a method for imaging the polarization vector of an electric dipole distribution in a homogeneous medium from measurements of the electric field made at a passive array. We study an electromagnetic version of Kirchhoff imaging and prove, in the
Cassier, Maxence, Vasquez, Fernando Guevara   +1 more
core   +1 more source

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

Advanced 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

Wave scattering from self-affine surfaces

, 1999
Electromagnetic wave scattering from a perfectly reflecting self-affine surface is considered. Within the framework of the Kirchhoff approximation, we show that the scattering cross section can be exactly written as a function of the scattering angle via
A.A. Maradudin, A.G. Voronovich, B.B. Mandelbrot, C.J.R. Sheppard, D.L. Jaggard, D.L. Jordan, Damien Vandembroucq, E. Bouchaud, F. Plouraboué, Ingve Simonsen, J. A. Ogilvy, J. Chen, J.A. Sánchez-Gil, J.A. Sánchez-Gil, J.W.S. Rayleigh, M. Nieto-Vesperinas, M.K. Shepard, M.V. Berry, N. Lin, P. Beckmann, P. Meakin, P.E. McSharry, Stéphane Roux, Y-P Zhao   +23 more
core   +1 more source

Energy functionals of Kirchhoff-type problems having multiple global minima [PDF]

Nonlinear Analysis: Theory, Methods & Applications, 2015
In this paper, using the theory developed in [8], we obtain some results of a totally new type about a class of non-local problems. Here is a sample: Let $ \subset {\bf R}^n$ be a smooth bounded domain, with $n\geq 4$, let $a, b, \in {\bf R}$, with $a\geq 0$ and $b>0$, and let $p\in \left ] 0,{{n+2}\over {n-2}}\right [$.
openaire   +4 more sources

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

Advanced 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, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Concentration phenomena for a fractional Schr\"odinger-Kirchhoff type equation

, 2017
In this paper we deal with the multiplicity and concentration of positive solutions for the following fractional Schr\"odinger-Kirchhoff type equation \begin{equation*} M\left(\frac{1}{\varepsilon^{3-2s}} \iint_{\mathbb{R}^{6}}\frac{|u(x)- u(y)|^{2}}{|x ...
Ambrosio, Vincenzo, Isernia, Teresa
core   +1 more source

Minimizers of Kirchhoff's plate functional: Euler–Lagrange equations and regularity

Comptes Rendus. Mathématique, 2009
Let S⊂R2 be a bounded C∞-domain. In this Note we consider W2,2 isometric immersions u:S→R3 which minimize Kirchhoff's plate functional under boundary conditions prescribing the values of u and of ∇u on parts of ∂S. We derive the Euler–Lagrange equations satisfied by u and we derive regularity results for u.
openaire   +1 more source

Thermally Engineered Sodium‐Embedded Alumina with Programmable Synaptic Plasticity for Neuromorphic Transistors

Advanced Functional Materials, EarlyView.
A fully transparent, all‐metal‐oxide neuromorphic transistor using a sodium‐embedded alumina (SEA) electrolyte is demonstrated. By precisely tuning the thermal annealing process, the chemical composition of the SEA layer is controlled, allowing for the deterministic realization of both short‐term and long‐term synaptic plasticity within the same device
Yonghyun Albert Kwon, Jaeyeon Kim, Dong Yeon Won, Saeyoun Park, Youngjae Yoo, Seongchan Kim, Dong‐Hwan Kim, Jeong Ho Cho   +7 more
wiley   +1 more source