Results 221 to 230 of about 42,911 (263)

SUN5 forms a regular protein lattice reinforcing the sperm head-tail junction. [PDF]

Proc Natl Acad Sci U S A
Moecking J, Doroshev S, Leung MR, Zeev-Ben-Mordehai T.   +3 more
europepmc   +1 more source

Biomechanical evaluation of individual 3D-printed vertebrae. [PDF]

BMC Biomed Eng
Metzner F, Schleifenbaum S, Heyde CE, von der Höh NH.   +3 more
europepmc   +1 more source

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Chain Coding with a Hexagonal Lattice

IEEE Transactions on Pattern Analysis and Machine Intelligence, 1983
This paper investigates the performance of chain code quantization of general curves using a hexagonal lattice structure, as a means of improving efficiency over the standard square lattice. Performance is first computed theoretically, assuming a generalization of grid-intersect quantization, and the curve to be quantized is assumed to be a straight ...
Stephen G Wilson
exaly   +3 more sources

Minimal Sandpiles on Hexagonal Lattice

Journal of Statistical Physics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Priezzhev, V. B., Ktitarev, D. V.
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Crystallographic Formulae for Hexagonal Lattices

physica status solidi (b), 1965
AbstractFor structures with hexagonal symmetry, three different axial systems (rhombohedral, orthorhombic, and hexagonal) are in general use to define the indices of directions and planes. The hexagonal axial system is the one in which confusion is most likely to occur if the axes and the notation are not clearly defined since, for this one crystal ...
Otte, H. M., Crocker, A. G.
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On the Crystallization of 2D Hexagonal Lattices

Communications in Mathematical Physics, 2008
From the authors' abstract: It is a fundamental problem to understand why solids form crystals and how atomic interaction determines the particular crystal structure that a material selects. In this paper we focus on the zero temperature case and consider a class of atomic potentials V expressed as the sum of a pair potential of Lennard-Jones type and ...
E, Weinan, Li, Dong
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Hexagonal Distributions on Hexagonal Lattice

2013
An infinite hexagonal lattice is introduced as a two-dimensional discretized uniform space for economic agglomeration. This chapter focuses on an analysis of geometrical characteristics of the lattice, as a vital prerequisite for the group-theoretic bifurcation analysis of this lattice that will be conducted in Chaps. 6–9.
Kiyohiro Ikeda, Kazuo Murota
openaire   +1 more source

Ranklets on hexagonal pixel lattices

Procedings of the British Machine Vision Conference 2003, 2003
Ranklets are a family of multiscale, orientation-selective rank features suitable for characterising complex patterns. On square pixel lattices, ranklets bear a strong similarity to Haar wavelets. This extends to the sensitivity to horizontal and vertical edges. We propose a generalisation of ranklets to hexagonal pixels.
Fabrizio Smeraldi, Mohammad A. Rob
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Symmetric designs on hexagonal tiles of a hexagonal lattice

Journal of Mathematics and the Arts, 2012
In his paper ‘A Class of Pleasing Periodic Designs’, Fernandez utilized the union of several sublattices of a square lattice to generate a design on a square tile of the Cartesian plane such that the design, the tile and the lattice have the same rotational and reflectional symmetries.
Xiqiang Zheng, Nakeya S. Brown
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Order-Disorder in Hexagonal Lattices

Physica, 1950
Some relations for the partition functions of two-dimensional infinite triangular and honeycomb lattices with Ising interaction between neighbours without magnetic field are given in the general case of different interactions in the three directions. Exact evaluation of these partition functions is obtained with the aid of the method of Bruria Kaufman.
openaire   +3 more sources