Results 41 to 50 of about 3,263,826 (343)

Highly sensitive magnetic field sensor with normal-incidence geometry using Ni-based bilayer subwavelength periodic structure operating in visible-wavelength region

open access: yesJapanese Journal of Applied Physics, 2018
We successfully demonstrate a highly sensitive optical sensor for detecting magnetic fields with normal-incidence geometry that uses a Ni-based bilayer subwavelength periodic structure (SWS) operating in the visible-wavelength region. The electromagnetic
Y. Takashima, M. Haraguchi, Y. Naoi
semanticscholar   +1 more source

Point-curve incidences in the complex plane [PDF]

open access: yes, 2017
We prove an incidence theorem for points and curves in the complex plane. Given a set of $m$ points in ${\mathbb R}^2$ and a set of $n$ curves with $k$ degrees of freedom, Pach and Sharir proved that the number of point-curve incidences is $O\big(m ...
Sheffer, Adam   +2 more
core   +2 more sources

Quotients of incidence geometries [PDF]

open access: yesDesigns, Codes and Cryptography, 2011
We develop a theory for quotients of geometries and obtain sufficient conditions for the quotient of a geometry to be a geometry. These conditions are compared with earlier work on quotients, in particular by Pasini and Tits. We also explore geometric properties such as connectivity, firmness and transitivity conditions to determine when they are ...
Cara, Philippe   +3 more
openaire   +3 more sources

Engineering Chemisorption of Fe4 Single‐Molecule Magnets on Gold

open access: yesAdvanced Materials Interfaces, 2021
Gaining control over the grafting geometry is critically important for any application of surface‐supported single‐molecule magnets (SMMs) in data storage, spintronics, and quantum information science.
Lorenzo Poggini   +21 more
doaj   +1 more source

THE FULFILLED EUCLIDEAN PLANE [PDF]

open access: yes, 2009
The fulfilled euclidean plane is the real projective plane, completed with the infinite point of its infinite line denoted new incidence structure. This is a structure with neighbouring elements, in which the unicity of the line through two distinct ...
Vasiu, Adrian, Vasiu, Angela
core   +1 more source

High efficiency near diffraction-limited mid-infrared flat lenses based on metasurface reflectarrays [PDF]

open access: yes, 2016
A limiting factor in the development of mid-infrared optics is the lack of abundant materials that are transparent, low cost, lightweight, and easy to machine. In this paper, we demonstrate a metasurface device that circumvents these limitations.
Aieta, Francesco   +11 more
core   +3 more sources

Theoretical model for the transmittance in a left-handed metamaterial of different geometries [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023
In this work, a theoretical model for the transmittance in a left-handed metamaterial of different geometries is presented. The proposed unit cells are a combination of conducting wires of rectangular cross-section with square-ring and hexagonal ...
Héctor Lorduy G, Ángel Salazar
doaj   +1 more source

Polynomial effective equidistribution

open access: yesComptes Rendus. Mathématique, 2023
We prove effective equidistribution theorems, with polynomial error rate, for orbits of the unipotent subgroups of $\mathrm{SL}_2(\mathfrak{l})$ in arithmetic quotients of $\mathrm{SL}_2(\mathbb{C})$ and $\mathrm{SL}_2(\mathfrak{l})\times \mathrm{SL}_2 ...
Lindenstrauss, Elon   +2 more
doaj   +1 more source

A New Approach for Deviation Modeling in Compressors: Sensitivity-Correlated Principal Component Analysis

open access: yesAerospace, 2023
Studies on the geometry variation-related compressor uncertainty quantification (UQ) have often used dimension reduction methods, such as the principal component analysis (PCA), for the modeling of deviations.
Mingzhi Li   +4 more
doaj   +1 more source

Research on influence of special-shaped honeycomb radar absorbing structure for wide-band absorbing design

open access: yesThe Journal of Engineering, 2019
To realise wide-band stealth of radar absorbing material, a special-shaped honeycomb radar absorbing structure within nested cone-shaped scattering configuration is designed.
Wang Ming-liang   +9 more
doaj   +1 more source

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