Results 141 to 150 of about 946,958 (320)

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

open access: yesAdvanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim   +4 more
wiley   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

Infinitely many solutions for class of Navier boundary (p,q)-biharmonic systems

open access: yesElectronic Journal of Differential Equations, 2012
This article shows the existence and multiplicity of weak solutions for the (p,q)-biharmonic type system $$displaylines{ Delta(|Delta u|^{p-2}Delta u)=lambda F_u(x,u,v)quadhbox{in }Omega,cr Delta(|Delta v|^{q-2}Delta v)=lambda F_v(x,u,v)quadhbox{in ...
Mohammed Massar   +2 more
doaj  

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song   +8 more
wiley   +1 more source

Infinitely many solutions via variational-hemivariational inequalities under Neumann boundary conditions

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study the variational-hemivariational inequalities with Neumann boundary condition. Using a nonsmooth critical point theorem, we prove the existence of infinitely many solutions for boundary-value problems.
Fariba Fattahi, Mohsen Alimohammady
doaj  

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

open access: yesAdvanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro   +3 more
wiley   +1 more source

Infinitely many solutions for sublinear Kirchhoff equations in R^N with sign-changing potentials

open access: yesElectronic Journal of Differential Equations, 2013
In this article we study the Kirchhoff equation $$ -Big(a+b int_{mathbb{R}^N}|abla u|^2dxBig)Delta u+V(x)u = K(x)|u|^{q-1}u, quadhbox{in }mathbb{R}^N, $$ where $Ngeq 3 ...
Anouar Bahrouni
doaj  

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