Decorrelation
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Benign familial fleck retina: estudo multimodal incluindo OCT angiography
RESUMO O objetivo do presente relato é demonstrar um estudo multimodal de um paciente com diagnóstico de Benign Familial Fleck Retina (BFFR) (OMIM 228980), uma alteração retinana muito rara. Retinografia colorida demonstrou “flecks” na retina posterior ao equador, poupando mácula. Tanto autofluorescência quando imagem “infrared,” nota-se padrã
Arq. Bras. Oftalmol.. Publicado em: 2017-10
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2. Solução rápida da ambiguidade GPS no posicionamento cinemático usando espaço nulo à esquerda e descorrelação de Cholesky multi-temporal (inversa) pareada
Com o objetivo de solucionar os problemas envolvendo enorme quantidade de cálculos na resolução de ambiguidade com multiplas épocas e inversão de matriz de alta ordem como ocorre no posicionamento relativo cinemático GPS, um algoritmo modificado para resolução rápida da ambiguidade é proposto. Em primeiro lugar, Decomposição de Valor Singluar (SV
Bol. Ciênc. Geod.. Publicado em: 2015-12
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3. Estudo sobre a extração de políticas de firewall e uma proposta de metodologia / A Study about firewall policy extraction and a proposal for a methodology
Com o aumento das ameaças na Internet, firewalls tornaram-se mecanismos de defesa cada vez mais utilizados. No entanto, sua configuração é notadamente complexa, podendo resultar em erros. Vários estudos foram realizados com o intuito de resolver tais problemas, mas a grande maioria deles se concentrou em trabalhar diretamente no nível de configuração
Publicado em: 2008
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4. Avaliação das imagens do sensor ASTER para discriminação espectral de variações faciológicas no granito Serra Branca, estado de Goiás / Aster sensor images valuation to spectral discrimination of faciologics variations in the Serra Branca granite, Goias state
The objective of this work was to evaluate the potential of ASTER/Terra images, acquired in the visible and near-infrared (VNIR) regions and in the shortwave infrared (SWIR) interval, for the discrimination of faciological variations in the Serra Branca granite massif in the Tin Province of the Goiás. This province is composed of several granitoid bodies th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/10/2003
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5. Assinaturas espectrais de gossans associados a mineralizações de Pb-Zn-Ba na Bacia de Irece (BA) : um estudo baseado em dados de sensores TM e ASTER
The aim ofthis work was to develop strategies for detection ofgossans associated to Pb-Zn-Ba deposits in the Irece basin (BA), as well as their distinction ftom generic laterites, using remote sensing data and techniques. Samples of gossans collected in the study area were analysed by reflectance spectroscopy methods, using a high resolution FieldSpec FR spe
Publicado em: 2003
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6. Avaliacao dos produtos integrados TM-Landsat, Radarsat e gamaespectrometricos na caracterizacao tectonica e mapeamento geologico de area mineralizada em ouro na regiao de Alta Floresta - MT / Landsat TM, Radarsat and airborne gamma ray digital data integrated products evaluation for tectonic characterization and geological mapping of a gold mineralized area, "Alta Floresta" region MT
The Alta Floresta region, located in the northern part of the Mato Grosso State, is characterized by an almost flat terrain, with intense anthropogenic activities, a high potential in terms of gold mineralization, and a poor geological knowledge. This research has focussed on the application of digital remote sensing integrated products (TM-Landsat/Standard
Publicado em: 1999
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7. Desenvolvimento de classificadores de máxima verossimilhança e ICM para imagens SAR / Development of maximum likelihood and ICM classifiers for SAR images
The purpose of this study is to implement, test and apply a Maximurn Likelihood Classifier (MLC) and a userfriendly contextual Markovian classifier, which use the distributions most appropriate to the Synthethic Aperture Radar (SAR) data. This study presents the main distributions to the SAR data and how several of these distributions arise from the multipli
Publicado em: 1996
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8. Avaliacao de dados aerogamaespectrometricos e de sua integracao com imagens digitais TM/Landsat 5, no mapeamento geologico na Serra dos Carajas (PA) / Evaluation of aerogammaspectrometric data and their integration with Landst-TM digital images for geological mapping in the Serra dos Carajas (PA)
Two test-sites, covering the Serra dos Carajás sheet (56,5 x 56,5 kin) and the Pojuca belt (15,4 x 15,4 kin) were selected for geological investigation. Gammaspectrometric airborne data (eU, eTh, Total Count and eU/eTh) were acquired over part of the Serra dos Carajfis Mineral Province (Brazilian Amazon Region) during the 1975 and 1976 (PGBC - Brazil-Canada
Publicado em: 1994
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9. Measurement of inherent particle properties by dynamic light scattering: introducing electrorotational light scattering.
Common dynamic light scattering (DLS) methods determine the size and zeta-potential of particles by analyzing the motion resulting from thermal noise or electrophoretic force. Dielectric particle spectroscopy by common microscopic electrorotation (ER) measures the frequency dependence of field-induced rotation of single particles to analyze their inherent di
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10. Impact of vaccination on the spatial correlation and persistence of measles dynamics.
The onset of measles vaccination in England and Wales in 1968 coincided with a marked drop in the temporal correlation of epidemic patterns between major cities. We analyze a variety of hypotheses for the mechanisms driving this change. Straightforward stochastic models suggest that the interaction between a lowered susceptible population (and hence increase
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11. Stimulus-Specific and Stimulus-Nonspecific Firing Synchrony and Its Modulation by Sensory Adaptation in the Whisker-to-Barrel Pathway
The stimulus-evoked response of a cortical neuron depends on both details of the afferent signal and the momentary state of the larger network in which it is embedded. Consequently, identical sensory stimuli evoke highly variable responses. Using simultaneous recordings of thalamic barreloid and/or cortical barrel neurons in the rat whisker-to-barrel pathway
American Physiological Society.