Results 41 to 50 of about 3,366,340 (357)
Engineering Chemisorption of Fe4 Single‐Molecule Magnets on Gold
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
Theoretical model for the transmittance in a left-handed metamaterial of different geometries [PDF]
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
AN INCIDENCE CONJECTURE OF BOURGAIN OVER FIELDS OF POSITIVE CHARACTERISTIC
In this note we generalize a recent theorem of Guth and Katz on incidences between points and lines in 3-space from characteristic 0 to characteristic $p ...
JORDAN S. ELLENBERG, MÁRTON HABLICSEK
doaj +1 more source
Method for fast determination of the angle of ionizing radiation incidence from data measured by a Timepix3 detector [PDF]
This paper presents a method of how to determine spatial angles of ionizing radiation incidence quickly, using a Timepix3 detector. This work focuses on the dosimetric applications where detectors and measured quantities show significant angle ...
F. Lehner+8 more
doaj +1 more source
High efficiency near diffraction-limited mid-infrared flat lenses based on metasurface reflectarrays [PDF]
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
Polynomial effective equidistribution
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
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
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
Sphere tangencies, line incidences, and Lie's line-sphere correspondence [PDF]
Two spheres with centers $p$ and $q$ and signed radii $r$ and $s$ are said to be in contact if $|p-q|^2 = (r-s)^2$. Using Lie's line-sphere correspondence, we show that if $F$ is a field in which $-1$ is not a square, then there is an isomorphism between the set of spheres in $F^3$ and the set of lines in a suitably constructed Heisenberg group that is
arxiv +1 more source
Point-curve incidences in the complex plane [PDF]
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