Results 101 to 110 of about 2,582,876 (339)
Advanced Materials Technologies, EarlyView.The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti +6 more
wiley +1 more source
Electronic Journal of Differential Equations, 2021 In this article, we consider the multiplicity of solutions for nonhomogeneous Schrodinger-Poisson systems under the Berestycki-Lions type conditions.
Lan-Xin Huang +2 more
doaj
Advanced Materials Technologies, EarlyView.The impossibility of defining universal printability criteria for Direct Ink Writing (DIW) requires “unpacking” the process into printing subfunctions. Each of these is rationalized by identifying dimensionless groups, allowing effective comparison between the various material‐ and process‐related parameters for printability purposes.
Enrica Luzzi +4 more
wiley +1 more source
Metoda Sił dla Układów Lepkosprężystych
Engineering Transactions, 1970 In the paper the equation is given of the method of forces for visco-elastic systems, and the properties of the given set of equations are analyzed. In particular, a class of load functions has been separated ensuring the identity of the states of stress
J. Kubik
doaj
An identity involving automorphisms of prime rings inspired by Posner's theorem
Journal of Taibah University for Science, 2018 Let ${\mathcal R}$ be a prime ring with centre ${\mathcal Z}(\mathcal {R})$, $\mathcal {L}$ a non-zero Lie ideal of ${\mathcal R}$, and σ a non-trivial automorphism of ${\mathcal R}$ such that $[[\sigma (u),u], \sigma (u)] \in \mathcal {Z}(\mathcal {R})$
Mohammad Ashraf, Sajad Ahmad Pary
doaj +1 more source
Step Function in Momentum Space by a Metagrating
Advanced Optical Materials, EarlyView.This work demonstrates how the symmetry of the angular transmittance could be broken by a metagrating where the diffraction channels alleviate the requirement for enforcing absorbance. The metagrating retroreflects incident waves with positive incidence angles and transmits waves with negative incidence angles.
Mahmoud A. A. Abouelatta +3 more
wiley +1 more source
On the perfectness of C^{∞,s}-diffeomorphism groups on a foliated manifold [PDF]
Opuscula Mathematica, 2008 The notion of \(C^{r,s}\) and \(C^{\infty,s}\)-diffeomorphisms is introduced. It is shown that the identity component of the group of leaf preserving \(C^{\infty,s}\)-diffeomorphisms with compact supports is perfect.
Jacek Lech
doaj
Excitation of Quasi‐Bound States in the Continuum With Focused Radially Polarized Beams
Advanced Optical Materials, EarlyView.This work presents an innovative strategy for exciting symmetry‐protected quasi‐bound states in the continuum in periodic arrays of nanostructures using focused radially polarized light beams. Compared to excitation with a tilted plane wave, this approach can achieve both higher quality factors and stronger optical responses.
Luis Cerdán +4 more
wiley +1 more source
On Binomial Identities in Arbitrary Bases
, 2016 We extend the digital binomial identity as given by Nguyen el al. to an identity in an arbitrary base $b$, by introducing the $b-$ary binomial coefficients.
Jiu, Lin, Vignat, Christophe
core +1 more source
Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems
Advanced Optical Materials, EarlyView.The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley +1 more source