Listar por título
Mostrando ítems 188868-188887 de 267079
-
On the counterpropagation of waves
(2019) [Artículo de periódico]This work analyses the counterpropagation of transversal plane waves in a linear, homogeneous, nondispersive, and isotropic medium. Although this is a traditional subject in disciplines associated with wave phenomena, a ... -
On the crucial cluster Andrews-Lindsay 1 and a 4% distance solution for its planetary nebula
(2014) [Artículo de periódico]Andrews-Lindsay 1 is a pertinent open cluster because it may host the planetary nebula (PN) PHR 1315-6555, yet ambiguities linger concerning its fundamental parameters (>50% scatter). New multiband BVJHW1−4 photometry for ... -
On the dimensionally correct kinetic theory of turbulence for parallel propagation
(2015) [Artículo de periódico]Yoon and Fang [Phys. Plasmas 15, 122312 (2008)] formulated a second-order nonlinear kinetic theory that describes the turbulence propagating in directions parallel/anti-parallel to the ambient magnetic field. Their theory ... -
On the discretization of river networks for large scale hydrologic-hydrodynamic models
(2021) [Artículo de periódico]The discretization of river networks is a critical step for computing flow routing in hydrological models. However, when it comes to more complex hydrologic-hydrodynamic models, adaptations in the spatial representation ... -
On the electron-muon mass ratio
(1975) [Artículo de periódico]The quantum electrodynamics (QED) of electrons is considered as a theory with a passive dilatation invariance which is perturbed by the electromagnetic coupling to hadrons and muons. A stability criterium is introduced and ... -
On the emergence of [n] in the derivation of nasal-final words in Brazilian Portuguese
(2022) [Artículo de periódico]This article deals with the correspondence between words closed by [n] followed by a vowel-initial suffix (e.g., ca[n]al 'channel', tupi[n]ismo 'Tupinism') and their respective bases in Brazilian Portuguese (e.g., cano ... -
On the evolutionary status and pulsations of the recently discovered blue large-amplitude pulsators (BLAPs)
(2018) [Artículo de periódico]The blue large-amplitude pulsators (BLAPs) constitute a new class of pulsating stars. They are hot stars with effective temperatures of ~30 000K and surface gravities of log g ~ 4.9, that pulsate with periods in the range ... -
On the evolution of AI and machine learning : analyses of impact, leadership and influence over the last decades
(2022) [Tesinas de grado]Artificial Intelligence has changed the world we live in. It all started in the academia where we had some seminal works in the area such as (MCCULLOCH; PITTS, 1943), (TURING, 1950), (MINSKY, 1961), and (VALIANT, 1984). ... -
On the evolution of remote laboratories for prototyping digital electronic systems
(2007) [Artículo de periódico]The design of digital electronic systems for industrial applications can benefit in many ways from the prototyping capabilities of field-programmable gate array (FPGA) platforms. This paper presents three evolutionary ... -
On the existence of an optimal estimation window for risk measures
(2016) [Artículo de periódico]We investigate whether there can exist an optimal estimation window for financial risk measures. Accordingly, we propose a procedure that achieves optimal estimation window by minimizing estimation bias. Using results from ... -
On the extraction of aromatic compounds from hydrocarbons by imidazolium ionic liquids
(2007) [Artículo de periódico]The liquid-liquid equilibrium for the ternary system formed by n-octane and aromatic (alkylbenzenes) and heteroaromatic compounds (nitrogen and sulfur containing heterocyles) and 1-alkyl-3-methylimidazolium ionic liquids ... -
On the finiteness of noncommutative supersymmetric QED/sub 3/ in the covariant superfield formulation
(2003) [Artículo de periódico]The three-dimensional noncommutative supersymmetric QED is investigated within the superfield approach. We prove the absence of UV/IR mixing in the theory at any loop order and demonstrate its one-loop finiteness. -
On the free terms of boundary integral equations for thick plates undergoing large displacements
(2004) [Artículo de periódico]This work presents a theoretical derivation of the convective terms appearing in integral equations for large displacement analysis of the Mindlin and the Reissner plate models. They are necessary to complete the Somigliana ... -
On the generalization of subspace detection in unordered multidimensional data
(2010) [Tesis]Este trabalho apresenta uma solução geral para a detecção de alinhamentos de dados em conjuntos multidimensionais não ordenados e ruidosos. Nesta abordagem, o tipo requerido de alinhamento de dados pode ser uma forma ... -
On the History of dermatology : the study of skin diseases over the centuries
(2021) [Artículo de periódico]The study of skin, the science of dermatology, has undergone significant transformations throughout the centuries. From the first descriptions of skin diseases in Egyptian papyri and in Hippocratic writings to the first ... -
On the identification of the contribution of several pollutant sources from local
(2016) [Artículo de periódico]In the present article we discuss the pollution dispersion problem from a mixed juridical scientific technological point of view, where the principal interest lies in the pertinent question, how to transform model simulation ... -
On the influence of the shape of kappa distributions of ions and electrons on the ioncyclotron instability
(2017) [Artículo de periódico]The dispersion relation for ion-cyclotron waves propagating along the direction of the ambient magnetic field is investigated numerically by considering different forms of kappa functions as velocity distributions of ions ... -
On the interaction of focused electromagnetic beams and space-charge fields in laser-plasma systems
(2012) [Artículo de periódico]In the present analysis we study the weakly nonlinear coupled dynamics involving focused radiation beams and spacecharge fields in laser-plasmas systems. We direct the analysis to regimes evolving with the co-moving ... -
On the investigation of the joint use of self-* properties and peer-to-peer for network management
(2010) [Tesis]Ao longo dos anos, a comunidade de gerenciamento de redes têm sido levada a criar alternativas de gerenciamento que sejam capazes de lidar com problemas de heterogeneidade, escalabilidade, confiabilidade, e com a redução ...
