Results 31 to 40 of about 325,988 (297)

Dispersion Analysis of Metasurfaces With Hexagonal Lattices With Higher Symmetries

open access: yesIEEE Journal of Microwaves, 2023
This article investigates the dispersion properties of metasurfaces with hexagonal lattices, including potential higher symmetric configurations. We explore the relationships between the periodicity of hexagonal lattices and their dispersion properties ...
Shiyi Yang   +3 more
doaj   +1 more source

Tunable Terahertz Absorber Based on Hexagonal Graphene Disk Array [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2023
:In this paper, a tunable absorber structure based on a graphene hexagonal array in the terahertz range is investigated. The graphene hexagonal absorber is simulated by the finite element method.
Sajad Ghajarpour-Nobandegani   +2 more
doaj   +1 more source

Submicron-sized phosphors based on hexagonal rare earth oxycarbonate for near-infrared excitation and emission

open access: yesJournal of Asian Ceramic Societies, 2019
Neodymium-doped rare-earth oxycarbonates, Ln2O2CO3: x mol% Nd3+ (Ln = La, Gd, and Y, 0 ≤ x ≤ 5), were synthesized by a simple flux method using a 0.476Li2CO3–0.270Na2CO3–0.254K2CO3 eutectic mixture.
Mizuki Watanabe   +4 more
doaj   +1 more source

Image translation and rotation on hexagonal structure [PDF]

open access: yes, 2006
Image translation and rotation are becoming essential operations in many application areas such as image processing, computer graphics and pattern recognition.
He, X, Hur, N, Jia, W, Kim, J, Wu, Q
core   +1 more source

Electronic Structure of Folded Hexagonal Boron Nitride

open access: yesThe Journal of Physical Chemistry C, 2022
Folded regions are commonly encountered in a number of hexagonal boron nitride (h-BN) based bulk and nanostructured materials. Two types of structural modifications occur in folded h-BN layers: local curvature at the folded edges and interlayer shear of the layers which changes the stacking of the overlapping flat regions.
Anthony Impellizzeri   +3 more
openaire   +3 more sources

Characterization of Advanced Aluminum Titanate Ceramic Filter Having Hexagonal Cell Geometry

open access: yesInternational Journal of Automotive Engineering, 2014
Aluminum titanate (AT)-based Diesel Particulate Filter (DPF) with hexagonal cell geometry has previously been presented as a promising media showing extremely lower pressure drop, coming from its specific hexagonal channels of DPF.
Takumi Shibuta   +3 more
doaj   +1 more source

A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications [PDF]

open access: yes, 2010
Contemporary 2D Ultrasonic arrays suffer from low SNR and limited steering capabilities. Yet, there is a great desire in the industry to increase the operational frequency, in order to enhance their volumetric imaging resolution.
Dziewierz, J.   +4 more
core   +1 more source

Uniformly partitioning images on virtual hexagonal structure [PDF]

open access: yes, 2006
Hexagonal structure is different from the traditionnal square structure for image representation. The geometrical arrangement of pixels on hexagonal structure can be described in terms of a hexagonal grid.
He, X   +6 more
core   +1 more source

Hexagonal High-Entropy Alloys

open access: yes, 2014
We report on the discovery of a high-entropy alloy with a hexagonal crystal structure. Equiatomic samples in the alloy system Ho-Dy-Y-Gd-Tb were found to solidify as homogeneous single-phase high-entropy alloys.
Feuerbacher, Michael   +2 more
core   +1 more source

Stacking the Equiangular Spiral [PDF]

open access: yes, 2013
We present an algorithm that adapts the mature Stack and Draw (SaD) methodology for fabricating the exotic Equiangular Spiral Photonic Crystal Fiber.
Agrawal, A., Azabi, Y. O., Rahman, B. M.
core   +2 more sources

Home - About - Disclaimer - Privacy