Results 11 to 20 of about 42,911 (263)
Rhombic organization of microvilli domains found in a cell model of the human intestine. [PDF]
PLoS ONE, 2018 Symmetry is rarely found on cellular surfaces. An exception is the brush border of microvilli, which are essential for the proper function of transport epithelia. In a healthy intestine, they appear densely packed as a 2D-hexagonal lattice.
Jonas Franz +7 more
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An Extremal Property of the Hexagonal Lattice [PDF]
Journal of Statistical Physics, 2019 We describe an extremal property of the hexagonal lattice $Λ\subset \mathbb{R}^2$. Let $p$ denote the circumcenter of its fundamental triangle (a so-called deep hole) and let $A_r$ denote the set of lattice points that are at distance $r$ from $p$ \begin{equation} A_r = \left\{ λ\in Λ: \| λ- p \| = r\right\}.
Markus Faulhuber, Stefan Steinerberger
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Polarization-Insensitive Reflective Metasurfaces for Highly Efficient Generation of OAM Beams
Frontiers in Physics, 2020 The polarization-insensitive reflective metasurfaces constructed from hexagonal-ring units along with honeycomb lattice are proposed for the efficient generation of converged orbital angular momentum (OAM) waves.
Xudong Bai
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Majlesi Journal of Electrical Engineering, 2022 In this paper, we compare dispersion characteristics of chloroform-core photonic crystal fibers (PCFs) with circular lattice and hexagonal lattice in the case of different air hole diameters. By varying lattice constant É and filling factor in the first
Ban Tran Le Tran +2 more
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On sublattices of the hexagonal lattice
Discrete Mathematics, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mira Bernstein +2 more
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Electrons on hexagonal lattices and applications to nanotubes [PDF]
Physical Review B, 2003 We consider a Froehlich-type Hamiltonian on a hexagonal lattice. Aiming to describe nanotubes, we choose this 2-dimensional lattice to be periodic and to have a large extension in one (x) direction and a small extension in the other (y) direction. We study the existence of solitons in this model using both analytical and numerical methods.
Hartmann, B., Zakrzewski, W. J.
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Universal Oriented van der Waals Epitaxy of 1D Cyanide Chains on Hexagonal 2D Crystals
Advanced Science, 2020 The atomic or molecular assembly on 2D materials through the relatively weak van der Waals interaction is quite different from the conventional heteroepitaxy and may result in unique growth behaviors.
Yangjin Lee +18 more
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Recursive filtering for splines on hexagonal lattices [PDF]
2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2003 Hex-splines are a novel family of bivariate splines which are well suited to handle hexagonally sampled data. Similar to classical 1D B-splines, the spline coefficients need to be computed by a prefilter. Unfortunately, the elegant implementation of this prefilter by causal and anti-causal recursive filtering is not applicable for the (non-separable ...
Van De Ville, D., Blu, T., Unser, M.
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Sensors, 2016 In this study, the hybrid Au–Ag hexagonal lattice of triangular and square lattice of quadrate periodic nanoparticle arrays (PNAs) were designed to investigate their extinction spectra of the localized surface plasmon resonances (LSPRs).
Jing Liu +4 more
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Smeared Lattice Model as a Framework for Order to Disorder Transitions in 2D Systems
Crystals, 2018 Order to disorder transitions are important for two-dimensional (2D) objects such as oxide films with cellular porous structure, honeycomb, graphene, Bénard cells in liquid, and artificial systems consisting of colloid particles on a plane.
Nadezhda L. Cherkas, Sergey L. Cherkas
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