Results 41 to 50 of about 454,600 (288)
When each hexagon of a hexagonal system covers it
Discrete Applied Mathematics, 1991 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fuji Zhang, Rong-si Chen
openaire +2 more sources
Hexagonal projected symmetries [PDF]
Acta Crystallographica Section A Foundations and Advances, 2015 In the study of pattern formation in symmetric physical systems, a three-dimensional structure in thin domains is often modelled as a two-dimensional one. This paper is concerned with functions in {\bb R}^{3} that are invariant under the action of a crystallographic group and the symmetries of their projections into a function defined on a plane.
Oliveira, Juliane F. +2 more
openaire +3 more sources
A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications [PDF]
, 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
Membranes, 2018 The alignment of nanostructures in materials such as lyotropic liquid crystal (LLC) templated materials has the potential to significantly improve their performances.
Weiwei Cong +8 more
doaj +1 more source
Extent of stacking disorder in diamond
, 2015 Hexagonal diamond has been predicted computationally to display extraordinary physical properties including a hardness that exceeds cubic diamond. However, a recent electron microscopy study has shown that so-called hexagonal diamond samples are in fact ...
Murray, Benjamin J. +2 more
core +1 more source
, 2021 In this paper we discuss the nature of artificial intelligence (AI) and present a hexagon of opposition (generalization of the square of opposition) to characterize what intelligence is, its relation with computability, creativity, understanding and undecidability.In a first part, we make some general comments about the history, development and ...
openaire +2 more sources
Graphene-like optical light field and its interaction with two-level atoms [PDF]
, 2015 The theoretical basis leading to the creation of a light field with a hexagonal honeycomb structure resembling graphene is considered along with its experimental realization and its interaction with atoms.
Aldossary, O.M. +6 more
core +1 more source
Recognizable Hexagonal Picture Languages and xyz domino tiles
Ratio Mathematica, 2021 In the paper "Hexagonal Pattern Languages" K S Dersanambika et.al. define xyz- domino systems and characterized hexagonal pictures using this. Here we define xyz local hexagonal picture languages where the usual notion of hexagonal tiles of size (2, 2, 2 ...
Anitha Pancratius +1 more
doaj +1 more source
Ab initio study on the magneto-structural properties of MnAs [PDF]
, 2006 The magnetic and structural properties of MnAs are studied with ab initio methods, and by mapping total energies onto a Heisenberg model. The stability of the different phases is found to depend mainly on the volume and on the amount of magnetic order ...
A. Zieba +12 more
core +1 more source
Improvement of Optical Properties in Hexagonal Index-guiding Photonic Crystal Fiber for Optical Communications [PDF]
Mathematics Interdisciplinary Research, 2017 Waveguides with low confinement loss, low chromatic dispersion, and low nonlinear effects are used in optical communication systems. Optical fibers can also be employed in such systems.
Saeed Olyaee +2 more
doaj +1 more source