Results 251 to 260 of about 28,807 (292)

Selective cytotoxicity of zinc peroxide and tetrapodal zinc oxide micro-nanoparticles against breast cancer cells: synthesis, characterization, and therapeutic potential. [PDF]

J Mater Sci Mater Med
Riaz T, Lettau M, Elbahri M, Elis M, Dunne N, Levingstone TJ, Weimer JP, van Mackelenbergh M, Arnold N, Maass N, Bauerschlag D, Schütt F, Adelung R, Hedemann N.   +13 more
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Symmetry-directed complex tessellation of irregular polygons from a single molecular precursor. [PDF]

Chem Sci
Zhai W, Ou Z, Chen Y, Zang H, Guo D, Li J.   +5 more
europepmc   +1 more source

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Distance on a Hexagonal Grid

IEEE Transactions on Computers, 1976
A simple formula is derived for the distance between two points on a hexagonal grid, in terms of coordinates with respect to a pair of oblique axes.
Luczak, Ed, Rosenfeld, Azriel
exaly   +2 more sources

Geometric transformations on the hexagonal grid

IEEE Transactions on Image Processing, 1995
The hexagonal grid has long been known to be superior to the more traditional rectangular grid system in many aspects in image processing and machine vision related fields. However, systematic developments of the mathematical backgrounds for the hexagonal grid are conspicuously lacking. The purpose of this paper is to study geometric transformations on
exaly   +3 more sources

Bounds for Codes Identifying Vertices in the Hexagonal Grid

SIAM Journal on Discrete Mathematics, 2000
In an undirected graph \(G=(V,E)\), a subset \(C\) of \(V\) is called an identifying code of the sets \(B_1(v)\cap C\) consisting of all elements of \(C\) within distance one from the vertex \(v\) if these sets are nonempty and different. The authors take as \(G\) the infinite hexagonal grid graph and show that the density of any identifying code is at
Iiro Honkala, Antoine Lobstein, Gilles Zémor   +2 more
exaly   +3 more sources

Potentials on the hexagonal grid

Circuits, Systems, and Signal Processing, 1997
The author considers the problem of determining the potentials at the vertices of a uniform hexagonal grid when the difference of potential is given between two of them. The result is obtained as the Fourier transform of a distribution on a two-dimensional torus. A discussion is also given of the Green's function for the system.
exaly   +2 more sources

Firefighting on the hexagonal grid

Discrete Applied Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abdullah Dean, Sean English, Tongyun Huang, Robert A. Krueger, Andy Lee, Mose Mizrahi, Casey Wheaton-Werle   +6 more
openaire   +2 more sources

A global shallow‐water model on an icosahedral–hexagonal grid by a multi‐moment constrained finite‐volume scheme

Quarterly Journal of the Royal Meteorological Society, 2014
A third-order global shallow-water model was developed on an icosahedral-hexagonal grid with the application of the multi-moment constrained finite-volume (MCV) method.
Chungang Chen, Feng Xiao, Xingliang Li   +2 more
exaly   +2 more sources

Weighted distances on the truncated hexagonal grid

Pattern Recognition Letters, 2021
Abstract Recently chamfer distances have been developed not only on the usual integer grids, but also on some non traditional grids including grids which are not lattices. In this paper the truncated hexagonal grid is considered: its pixels are dodecagons and two shaped (oriented) triangles.
Kovacs, Gergely, Nagy, Benedek, Vizvari, Bela   +2 more
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