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Chaotic diffusion caused by close encounters with several massive asteroids: II. the regions of (10) Hygiea, (2) Pallas, and (31) Euphrosyne
(Astronomy and Astrophysics, 2013-02-11) [Artigo]
Context. Close encounters with (1) Ceres and (4) Vesta, the two most massive bodies in the main belt, are known to be a mechanism of dynamical mobility able to significantly alter proper elements of minor bodies, and they ...
Correlative fractography: Combining scanning electron microscopy and light microscopes for qualitative and quantitative analysis of fracture surfaces
(Microscopy and Microanalysis, 2013-04-01) [Artigo]
Correlative fractography is a new expression proposed here to describe a new method for the association between scanning electron microscopy (SEM) and light microscopy (LM) for the qualitative and quantitative analysis of ...
Fault current limiter using transformer and modular device of YBCO coated conductor
(IEEE Transactions on Applied Superconductivity, 2013-04-08) [Artigo]
In this work, we report on the evaluation of a superconducting fault current limiter (SFCL). It is consisted of a modular superconducting device combined with a short-circuited transformer with a primary copper winding ...
Development of a thermoeconomic methodology for the optimization of biodiesel production - Part I: Biodiesel plant and thermoeconomic functional diagram
(Renewable and Sustainable Energy Reviews, 2013-04-02) [Artigo]
This work developed a methodology that uses the thermoeconomic functional diagram applied for allocating the cost of products produced by a biodiesel plant. The first part of this work discusses some definitions of exergy ...
Partículas massivas de spin-2 em espaços curvos de fundo
(2018-03-23) [Tese de doutorado]
Partículas massivas de spin-2 são usualmente descritas pela conhecida teoria de Fierz-Pauli através de um tensor de rank-2 simétrico hµν = hνµ. Recentemente, tem havido um aumento no interesse por teorias que descrevam ...
A computer-assisted approach for chemotaxonomic studies - Diterpenes in Lamiaceae
(Phytochemistry, 2001-03-23) [Artigo]
This paper describes a new computer approach for chemotaxonomic studies. The methodology employed enables the search for chemical substructures as taxonomic descriptors using all expert system built with plant natural ...
Analysis of aluminum plates under heating in electrical and natural gas furnaces
(Energy, 2000-10-01) [Artigo]
This paper analyzes the thermal storage characteristics of aluminum plates in furnaces during their heating for lamination under two sources of heat: an electrical resistance bank and a combustion process carried out with ...
Perturbations to Saturn's F-ring strands at their closest approach to Prometheus
(Planetary and Space Science, 2000-08-01) [Artigo]
The strange morphology of the F ring of Saturn is thought to be caused by the perturbing effects of two close satellites, Prometheus and Pandora. The F ring and the satellites also experience periodic close encounters as ...
Annihilation, glueball and flavor mixing effects in pseudoscalar mesons
(European Physical Journal C, 1999-12-01) [Artigo]
The pseudoscalar mesons η(547), η′(958) and η″(1410) are studied in the gluonium-quarkonium mixing framework. The SU(3)-flavor symmetry breaking and annihilation effects are considered. Estimates of the glueball mass and ...
Time analysis for temporary gravitational capture: Satellites of Uranus
(Astronomical Journal, 2001-07-01) [Artigo]
We study the problem of gravitational capture in the framework of the Sun-Uranus-particle system. Part of the space of initial conditions is systematically explored, and the duration of temporary gravitational capture is ...