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Sobre el Postulado de De Zolt en tres dimensionesSobre o Postulado de De Zolt em três dimensõesOn De Zolt´s Postulate in three dimensions
(Pontifícia Universidade Católica do Rio de Janeiro, 2021-12)
Este artículo tiene dos objetivos, a saber, discutir en qué medida las pruebas conocidas del Postulado de De Zolt pueden ser extendidas al caso de tres dimensiones y proveer una prueba alternativa y ciertamente básica de ...
The index of symmetry of three-dimensional Lie groups with a left-invariant metric
(De Gruyter, 2018-10)
We determine the index of symmetry of 3-dimensional unimodular Lie groups with a left-invariant metric. In particular, we prove that every 3-dimensional unimodular Lie group admits a left-invariant metric with positive ...
Exact scaling laws for helical three-dimensional two-fluid turbulent plasmas
(American Physical Society, 2016-12)
We derive exact scaling laws for a three-dimensional incompressible helical two-fluid plasma, without the assumption of isotropy. For each ideal invariant of the two-fluid model, i.e., the total energy, the electron helicity, ...
Experimental and theoretical analysis of the intensity of beams diffracted by three-dimensional photonic crystals
(American Physical Society, 2008-12)
An analysis of the diffracted beams emerging from three-dimensional photonic crystals is herein presented. The wave vectors of nonspecular beams are calculated for a triangular two-dimensional lattice and the change in ...
Three-dimensional reconstruction of irregular foodstuffs
(Elsevier, 2007-10)
Three-dimensional reconstruction of general solid food materials was performed using a reverse engineering method based on a surface cross-sectional design. Digital images of cross-sections of irregular multi-dimensional ...
La formation de formateurs: identité et professionnalisation. Une analyse a travers un modele systemique sui generis "The Three Dimensional Spiral of Sens"Educating educators: identity and professionalization. An analysis based on the systemic model sui generis "the three dimensional spiral of sense"
(European Union for Systemics, 2018-03)
In this paper, we deal with the historical-social situation of teacher education in Argentina and those aspects which have led to a so-called “weakened identity” of this education system and of teachers themselves. This ...
Modeling of disorder effects and optical extinction in three-dimensional photonic crystals
(American Physical Society, 2009-12)
We present three different methods for the modeling of disorder effects in three-dimensional photonic crystals. In order to reproduce experimental results, we apply a method based on a statistical distribution of sphere ...
Simulation of the electrical percolation of carbon nanotube composites in polymethylmethacrylate matrix: two-dimensional and three-dimensional analyses using a tortuosity effect of nanofillers
(Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Secretaria de Investigación y Posgrado, 2021-12-14)
The present work aims to study the simulation of the electrical percolation of carbon nanotubes (CNTs) in polymethylmethacrylate matrix (PMMA). In order to do this, simulations were employed in two-dimensional and ...
Preparation of a three-dimensional extracellular matrix by decellularization of rabbit livers
(Aran Ediciones, 2013-03)
Introduction: the availability of transplantable livers is not sufficient to fulfill the current demand for grafts, with the search for therapeutic alternatives having generated different lines of research, one of which ...
On the symmetry of three identical interacting particles in a one-dimensional box
(Elsevier Academic Press Inc, 2015-11)
We study a quantum-mechanical system of three particles in a one-dimensional box with two-particle harmonic interactions. The symmetry of the system is described by the point group D3d. Group theory greatly facilitates the ...