Gradient Spectral Analysis
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Detailed 1H and 13C NMR Spectral Data Assignment for Two Dihydrobenzofuran Neolignans
In this work we present a complete proton (1H) and carbon 13 (13C) nuclear magnetic resonance (NMR) spectral analysis of two synthetic dihydrofuran neolignans (±)-trans-dehydrodicoumarate dimethyl ester and (±)-trans-dehydrodiferulate dimethyl ester. Unequivocal assignments were achieved by 1H NMR, proton decoupled 13C (13C{1H}) NMR spectra, gradient-selec
J. Braz. Chem. Soc.. Publicado em: 2016-01
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2. Simulação da dinâmica do estado excitado em semicondutores orgânicos / Simulation of the excited state dynamics in organic semiconductors
In the present work, the Monte Carlo method and the direct numerical integration of the Master Equation were employed to simulate the excitation spectral diffusion process in light emitting polymeric systems. The methodology employed a competition among the internal intra-molecular relaxation, the inter-molecular incoherent energy transfer via Förster mecha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2012
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3. Gradient spectral analysis of hydro-ecological seasonal variation in the Pantanal Wetland, Brazil.
2010
INTERNATIONAL SYMPOSIUM ON WETLANDS IN A FLOOD PULSING ENVIRONMENT. Publicado em: 2011
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4. Caracterização computacional de padrões estruturais em seqüências de DNA relacionadas a processos em redes metabólicas / Characterization computational of the structural patterns in DNA sequence related with metabolic pathways.
Nas últimas décadas, uma enorme quantidade de informação sobre o funcionamento de sistemas biológicos foram disponibilizadas em bancos de dados de acesso público. A Computação Aplicada à Biologia ou Bioinformática tem contribuído para análise computacional de dados biológicos cada vez mais ricos em informação. Neste contexto, este trabalho tem
Publicado em: 2009
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5. Caracterização computacional de padrões estruturais em seqüências de DNA relacionadas a processos em redes metabólicas / Characterization computational of the structural patterns in DNA sequence related with metabolic pathways.
Nas últimas décadas, uma enorme quantidade de informação sobre o funcionamento de sistemas biológicos foram disponibilizadas em bancos de dados de acesso público. A Computação Aplicada à Biologia ou Bioinformática tem contribuído para análise computacional de dados biológicos cada vez mais ricos em informação. Neste contexto, este trabalho tem
Publicado em: 2009
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6. Simulation, analysis and computational characterization of fingering patterns in fluids displacement on porous media. / Simulação, análise e caracterização computacional de padrões de fingering em deslocamentos de fluidos em meios porosos
In this work, the patterns related to the displacement process of an interface between two ftuids of different mobilities are studied computationally. In the literature, the formation process of these patterns is known as fingering, a type of dynamic instability in the interface between two miscible fluids, where the fingers are classified in two types: dens
Publicado em: 2009
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7. A PRODUÇÃO DE FRICATIVAS E AS FUNÇÕES EXECUTIVAS ENTRE IDOSOS COM PRESBIACUSIA: UM ESTUDO EXPLORATÓRIO
Old people are ever more considered an object of study from a great many perspectives linked to health assistance policies and quality of life improvements. The present exploratory study aimed mainly to evaluate the performance of old people with presbiacusis using and not using hearing aid in the production of voiced and unvoiced alveolar and palatal fricat
Publicado em: 2009
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8. Análise espectral de padrões-gradiente de séries temporais curtas / Gradient spectral analysis for short time series
With the modernization of data collecting technology, in the time series format, new methodological challenges, for analyzing and interpreting variability patterns, have been growing. In general, such challenges are due to several collecting data problems when they are under extreme environmental variations, data satellite transmission and other inherent ins
Publicado em: 2008
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9. Análise espectral de padrões-gradiente de séries temporais curtas / Gradient spectral analysis for short time series
Com a modernização da tecnologia para coleta de dados, na forma de séries temporais, novos desafios metodológicos, para análise e interpretação dos padrões de variabilidade medidos, são crescentes. Em geral, desafios analíticos e interpretativos ocorrem devido aos diversos problemas de coleta de dados, quando sujeitos às variações extremas no me
Publicado em: 2008
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10. Sobre a velocidade de convergência da filtragem adaptativa IIR. / On the convergence speed of IIR adaptive filtering.
Adaptive filters with infinite impulse response (IIR) can replace with advantages the ones with finite impulse response (FIR). One of these advantages is the reduced number of parameters which leads to a smaller computational complexity giving similar responses. However, the use of adaptive IIR filters has some pratical issue, being the most prominent its sl
Publicado em: 2008
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11. Modelos prognósticos da temperatura mínima média numa região homogênea do Rio Grande do Sul / Prognostics nodels of minimum mean temperatures in a homogeneous region of Rio Grande do Sul
This work aims to study the minima mean monthly temperatures behave in RS state, Brazil, in 90 years (1913 2002) of observation. The data were cllected in 40 meteorological station distributed in the state, and the faults were completed by the correlation method. On the first step, five regions were determinated by Cluster Analysis, these regions present sim
Publicado em: 2005
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12. Preparation and Description of High-Molecular-Weight Soluble Surface Antigens from a Group A Streptococcus
High-molecular-weight proteins having M protein reactivity were isolated without acid or alkaline digestion. Treatment of a heat-killed group A Streptococcus with sonic vibration released antigens which reacted strongly and specifically with absorbed type-specific antiserum. This antigen preparation was released without diminishing the total yield of acid-ex