Navegação Ciências Exatas e da Terra por Título
Resultados 2380-2399 de 5964
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Identification of foot and mouth disease risk areas using a multi-criteria analysis approach
(2017) [Artigo de periódico]Foot and mouth disease (FMD) is a highly infectious disease that affects cloven-hoofed livestock and wildlife. FMD has been a problem for decades, which has led to various measures to control, eradicate and prevent FMD by ... -
Identification of hadronic tau lepton decays using a deep neural network
(2022) [Artigo de periódico]A new algorithm is presented to discriminate reconstructed hadronic decays of tau leptons (τh) that originate from genuine tau leptons in the CMS detector against τh candidates that originate from quark or gluon jets, ... -
Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
(2020) [Artigo de periódico]Machine-learning (ML) techniques are explored to identify and classify hadronic decays of highly Lorentz-boosted W/Z/Higgs bosons and top quarks. Techniques without ML have also been evaluated and are included for comparison. ... -
Identification of RR lyrae stars in multiband, sparsely sampled data from the dark energy survey using template fitting and random forest classification
(2019) [Artigo de periódico]Many studies have shown that RR Lyrae variable stars (RRL) are powerful stellar tracers of Galactic halo structure and satellite galaxies. The Dark Energy Survey (DES), with its deep and wide coverage (g ~ 23.5 mag in a ... -
Identifying extensions required by RUP (Rational Unified Process) to comply with CMM (Capability Maturity Model) levels 2 and 3
(2003) [Artigo de periódico]This paper describes an assessment of the Rational Unified Process (RUP) based on the Capability Maturity Model (CMM). For each key practice (KP) identified in each key process area (KPA) of CMM levels 2 and 3, the Rational ... -
Identifying outbreaks of porcine epidemic diarrhea virus through animal movements and spatial neighborhoods
(2019) [Artigo de periódico]The spread of pathogens in swine populations is in part determined by movements of animals between farms. However, understanding additional characteristics that predict disease outbreaks and uncovering landscape factors ... -
IL1B , IL4R , IL12RB1 and TNF gene polymorphisms are associated with Plasmodium vivax malaria in Brazil
(2012) [Artigo de periódico]Background: Malaria is among the most prevalent parasitic diseases worldwide. In Brazil, malaria is concentrated in the northern region, where Plasmodium vivax accounts for 85% disease incidence. The role of genetic factors ... -
A ilusão sobre o tamanho da lua no horizonte
(2006) [Artigo de periódico] -
Ilustrando a segunda lei de Newton no século XXI
(2002) [Artigo de periódico]Apresenta-se uma forma de ensinar a segunda Lei de Newton usando-se a modelagem computacional, de modo que, além das tradicionais situações lineares, problemas mais reais e atuais possam ser tratados. Ilustra-se com o ... -
Image-based modeling and rendering techniques : a survey
(2002) [Artigo de periódico]A recente convergência entre computação gráfica e visão computacional levou à criação de um conjunto de técnicas denominadas modelagem e rendering baseados em imagens (MRBI). Modelagem baseada em imagens se refere ao ... -
Image effects on the transport of intense nonaxisymmetric charged beams
(2007) [Artigo de periódico]The effect of conducting pipes on the equilibrium of intense nonaxisymmetric continuous beams of charged particles is investigated. For a cylindrical pipe and an elliptical beam, we obtain an exact closed form analytical ... -
Imagem, informação e tecnologia : vídeo digital como objeto de estudo para ciência da informação
(2012) [Artigo de periódico]Introdução: Aborda conceitos a respeito de tecnologias da imagem, no contexto da Ciência da Informação. Delimita o estudo do vídeo digital enquanto imagem, tecnologia e informação. Objetivo: Identifica as relações do vídeo ... -
Imágenes visuales en el aula y rendimiento escolar en física : un estudio comparativo
(2003) [Artigo de periódico]Este trabajo compara el rendimiento de dos grupos de estudiantes de Física del Nivel Polimodal1 cuando en uno de ellos se lleva a cabo un tratamiento demostrativo que enfatiza el uso de recursos visuales (como imágenes ... -
Imagens, docência e identidade
(2010) [Artigo de periódico]Este texto analisa imagens docentes a partir de uma investigação com três turmas de estudantes de três diferentes cursos universitários para formação docente. O texto discute a construção das imagens docentes a partir de ... -
Imaging of mbg starbursts - I. Morphological analysis
(1995) [Artigo de periódico]We present, in detail, the morphological analysis of a sample of 15 galaxies of the Montreal blue galaxy (MBG) survey, based on BVRI imaging. The sample consists of starburst nucleus galaxies, mostly with early-type ... -
Imaging of mgb starbursts - II. The nature of the sample
(1995) [Artigo de periódico]In this paper, broad-band imaging in BVRI is used in parallel with information from long-slit spectroscopy and IRAS data to study star formation processes in a sample of 15 MBG (Montreal blue galaxy) starbursts, in order ... -
Imidazolium ionic liquids as compatibilizer agents for microcrystalline cellulose/epoxy composites
(2023) [Artigo de periódico]Four imidazolium-based ionic liquids (IL; 1-butyl-3-methylimidazolium chloride, 1-carboxymethyl3-methylimidazolium chloride, 1,3-dicarboxymethylimidazolium chloride and 1-(2-hydroxyethyl)- 3-methylimidazolium chloride) ... -
Imidazolium ionic liquids as fracture toughening agents in DGEBA-TETA epoxy resin
(2020) [Artigo de periódico]Although epoxy resins are used in a broad variety of applications due to their good mechanical and thermal properties, their low fracture toughness is a limitation, exhibiting brittle behavior. This study explored the ... -
Imobilização de dicloreto de bis(butilciclopentadienil) zircônio em adutos de cloreto de magnésio (MgCl2.nEtOH) e seu desempenho em homopolimerização de etileno
(2000) [Artigo de periódico]Neste trabalho foram preparados catalisadores a partir da imobilização do precursor catalítico (nBuCp)2ZrCl2 em adutos de cloreto de magnésio (MgCl2.nEtOH). Observou-se que o conteúdo residual de etanol do suporte teve ... -
Impact features induced by single fast ions of different charge-state on muscovite mica
(2021) [Artigo de periódico]The influence of the charge state q on surface modifications induced by the impact of individual fast, heavy ions on muscovite mica was investigated. Beams of 593 MeV 197Auq+ with well-defined initial charge states over a ...
