Navegação Ciências Exatas e da Terra por Título
Resultados 5889-5908 de 5972
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Vortex distribution in a confining potential
(2013) [Artigo de periódico]We study a model of interacting vortices in a type II superconductor. In the weak coupling limit, we constructed a mean-field theory which allows us to accurately calculate the vortex density distribution inside a confining ... -
Vortex glass and vortex liquid in oscillatory media
(2003) [Artigo de periódico]We study the disordered, multispiral solutions of two-dimensional oscillatory media for parameter values at which the single-spiral/vortex solution is fully stable. Using the complex Ginzburg-Landau (CGLE) equation, we ... -
Vulcanismo félsico paleoproterozóico do Grupo Iricoumé, domínio Erepecuru-Trombetas, província Amazônia central : dados de campo, caracterização petrográfica e geocronologia Pb-Pb em zircão
(2013) [Artigo de periódico]O Grupo Iricoumé compreende rochas vulcânicas efusivas e piroclásticas, com texturas e estruturas bastante preservadas, que pertence a um extenso evento vulcano-plutônico que marcou a região central do Cráton Amazônico ... -
VVV DR1 : the first data release of the Milky Way bulge and southern plane from the near-infrared ESO public survey VISTA variables in the Vía Láctea
(2012) [Artigo de periódico]Context. The ESO public survey VISTA variables in the Vía Láctea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for about five years. Aims. We ... -
W and Z boson production in p-Pb collisions at √sNN = 5.02 TeV
(2017) [Artigo de periódico]Resumo não disponível -
Washington photometry of 14 intermediate-age to old star clusters in the Small Magellanic Cloud
(2011) [Artigo de periódico]We present CCD photometry in the Washington system C, T1 and T2 passbands down to T1 ~ 23 in the fields of L3, L28,HW66, L100,HW79, IC 1708, L106, L108, L109, NGC643, L112, HW84, HW85 and HW86, 14 Small Magellanic Cloud ... -
Washington photometry of candidate star clusters in the Small Magellanic Cloud
(2012) [Artigo de periódico]We present for the first time Washington CT1 photometry for 11 unstudied or poorly studied candidate star clusters. The selected objects are of small angular size, contain a handful of stars, and are projected towards the ... -
Water diffusion in carbon nanotubes : Interplay between confinement, surface deformation, and temperature
(2020) [Artigo de periódico]In this article, we investigate, through molecular dynamics simulations, the diffusion behavior of the TIP4P/2005 water confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive ... -
Water diffusion in rough carbon nanotubes
(2020) [Artigo de periódico]We use molecular dynamics simulations to study the diffusion of water inside deformed carbon nanotubes with different degrees of deformation at 300 K. We found that the number of hydrogen bonds that water forms depends on ... -
Water in soybean oil microemulsions as medium for electrochemical measurements
(2003) [Artigo de periódico]Microemulsões de água em óleo de soja (w/o ME) foram preparadas com dodecil sulfato de sódio (SDS) como surfactante e com os álcoois amílico ou isoamílico, como co-surfactantes. A composição 40,0% de óleo, 43,2% de álcool, ... -
Waterlike anomalies in a two-dimensional core-softened potential
(2018) [Artigo de periódico]We investigate the structural, thermodynamic, and dynamic behavior of a two-dimensional (2D) core-corona system using Langevin dynamics simulations. The particles are modeled by employing a core-softened potential which ... -
Waterlike hierarchy of anomalies in continuous spherical shouldered potential
(2008) [Artigo de periódico]We investigate by molecular dynamics simulations a continuous isotropic core-softened potential with attractive well in three dimensions, introduced by Franzese [J. Mol. Liq. 136, 267 (2007)], that displays liquid-liquid ... -
A water soluble 3-n-propyl-1-azonia-4-azabicyclo[2.2.2]octanechloride silsesquioxane grafted onto Al/SiO2 surface : chromium adsorption study
(2006) [Artigo de periódico]O material octanocloreto de 3-n-propil-1-azonia-4-azabiciclo[2.2.2] silsesquioxano (dabcosil silsesquioxano) solúvel em água foi obtido. O dabcosil silsesquioxano foi enxertado na superfície da sílica, previamente modificada ... -
Water vapor interaction with silicon oxide films thermally grown on 6H-SiC and Si
(2009) [Artigo de periódico]Thermally induced incorporation of isotopically labeled water vapor D2 18O species in 7 nm thick SiO2 films thermally grown on 6H-SiC 0001 and on Si 001 were investigated. Higher incorporation of hydrogen and higher isotopic ... -
Water wave radiation by a heaving submerged horizontal disk very near the free surface
(2010) [Artigo de periódico]The radiation of water waves by heaving horizontal disk at a shallow submergence depth is considered. The problem is formulated as a Fredholm integral equation. The resonant frequencies originating from the shallow submergence ... -
Wave breaking and particle jets in intense inhomogeneous charged beams
(2007) [Artigo de periódico]This work analyzes the dynamics of inhomogeneous, magnetically focused high-intensity beams of charged particles. While for homogeneous beams the whole system oscillates with a single frequency, any inhomogeneity leads to ... -
Wave front propagation for a cauchy problem with a fast component
(1992) [Artigo de periódico] -
Wavelength self-calibration and sky subtraction for Fabry-Pérot interferometers : applications to OSIRIS
(2015) [Artigo de periódico]We describe techniques concerning wavelength calibration and sky subtraction to maximize the scientific utility of data from tunable filter instruments. While we specifically address data from the Optical System for Imaging ... -
A wavelet-based approach for analyzing industrial stochastic textures with applications
(2007) [Artigo de periódico]Several continuous manufacturing processes use stochastic texture images for quality control and monitoring. Large amounts of pictorial data are acquired, providing important information about both the materials produced ... -
Waves in magnetized dusty plasmas with variable charge on dust particles
(2004) [Artigo de periódico]We present results obtained in recent years for wave propagation in a magnetized dusty plasma, including variable charge of the dust particles, and using a kinetic approach. Two forms of the dielectric tensor are obtained, ...
