Results 41 to 50 of about 36,594 (305)

Phase Smoothing for Mutual Coupling Mitigation in Multifunctional Metasurfaces Designed with Diffractive Neural Networks

Advanced Optical Materials, EarlyView.
A diffractive neural networkdesigned metasurface operating at 86 GHz generates multiple holographic patterns by controlling the phase of subwavelength unit cells. A phase‐smoothing regularization mitigates mutual coupling, enabling accurate multifunctional wavefront shaping.
Damián Rodríguez‐Trujillo, Alicia E. Torres‐García, Mikel Aldea, Jorge Teniente, Asier Marzo‐Pérez, Miguel Beruete   +5 more
wiley   +1 more source

The one-phase bifurcation for the p-Laplacian [PDF]

Journal of Differential Equations, 2019
A bifurcation about the uniqueness of a solution of a singularly perturbed free boundary problem of phase transition associated with the p-Laplacian, subject to given boundary condition is proved in this paper. We show this phenomenon by proving the existence of a third solution through the Mountain Pass Lemma when the boundary data decreases below a ...
Ali, Alaa Akram Haj, Wang, Peiyong
openaire   +2 more sources

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

Periodic solutions for nonlocal p(t) $p(t)$-Laplacian systems

Boundary Value Problems, 2019
The purpose of this paper is to investigate the existence of periodic solutions for a class of nonlocal p(t) $p(t)$-Laplacian systems. When the nonlinear term is p+ $p^{+}$-superlinear at infinity, some new solvability conditions of nontrivial periodic ...
Shengui Zhang
doaj   +1 more source

Initial boundary value problem for fractional p-Laplacian Kirchhoff type equations with logarithmic nonlinearity

Mathematical Biosciences and Engineering, 2021
In this paper, we study the initial boundary value problem for a class of fractional p-Laplacian Kirchhoff type diffusion equations with logarithmic nonlinearity.
Peng Shi, Min Jiang, Fugeng Zeng, Yao Huang   +3 more
doaj   +1 more source

Critical fractional $p$-Laplacian problems with possibly vanishing potentials

, 2015
We obtain nontrivial solutions of a critical fractional $p$-Laplacian equation in the whole space and with possibly vanishing potentials. In addition to the usual difficulty of the lack of compactness associated with problems involving critical Sobolev ...
Perera, Kanishka, Squassina, Marco, Yang, Yang   +2 more
core   +1 more source

Asymmetric Synthesis of Atropisomeric Amines via Transaminase‐Catalyzed Dynamic Kinetic Resolution

Advanced Synthesis &Catalysis, EarlyView.
A dynamic kinetic resolution approach is developed for the atroposelective synthesis of heterobiaryl primary amines. Using transaminases and leveraging Lewis acid‐base interactions to induce racemization, a variety of axially chiral primary amines are produced in high yields and enantioselectivities.
Juan M. Coto‐Cid, Patricia Rodríguez‐Salamanca, Christian M. Heckmann, Caroline E. Paul, Joaquín López‐Serrano, Rosario Fernández, José M. Lassaletta, Valentín Hornillos, Gonzalo de Gonzalo   +8 more
wiley   +1 more source

Resonant nonlinear periodic problems with the scalar p-Laplacian and a nonsmooth potential [PDF]

, 2006
We study periodic problems driven by the scalar p-Laplacian with a nonsmooth potential. Using the nonsmooth critical point theory for locally Lipsctiz functions,we prove two existence theorems under conditions of resonance at infinity with respect to ...
Aizicovici, Sergiu, Papageorgiou, Nikolaos, Staicu, Vasile   +2 more
core   +1 more source

A strong comparison principle for the $p$-Laplacian [PDF]

Proceedings of the American Mathematical Society, 2007
Summary: We consider weak solutions of the differential inequality of \(p\)-Laplacian type \[ -\Delta_p u - f(u) \leq - \Delta_p v - f(v) \] such that \(u\leq v\) on a smooth bounded domain in \(\mathbb R^N\) and either \(u\) or \(v\) is a weak solution of the corresponding Dirichlet problem with zero boundary condition.
ROSELLI, PAOLO, Sciunzi, B.
openaire   +4 more sources

Iron Overload Mediates the Differential Cell Fate of Astrocytes from Neurons and Its Regulatory Mechanisms in Ischemic Stroke

Advanced Science, EarlyView.
Upon ischemia/reperfusion‐induced iron overload condition, neurons and astrocytes exhibit similar oxidative stress changes but opposite alterations in endogenous antioxidant defense mechanisms, leading to divergent ferroptotic outcomes. The iron deposition and neuronal loss are increased within the perilesional cortex of stroke patients ...
Yi Guo, Yue Wang, Yong Ni, Bin Bo, Jinzhi He, Yongming Zhu, Aiping Qin, Xianyong Zhou, Huaping Du, Yuan Liu, Tianyao Wang, Yudu Li, Yibo Zhao, Zengai Chen, Zhipei Liang, Yao Li, Yuan Xu, Huiling Zhang   +17 more
wiley   +1 more source