Long Range Correlation
Mostrando 1-12 de 96 artigos, teses e dissertações.
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1. SPEI and Hurst Analysis of Precipitation in the Amazonian Area of Brazil
Resumo A floresta amazônica controla, em certa medida, o ciclo hidrológico global. Os objetivos do presente trabalho foram (i) investigar padrões hidrológicos em uma área maior da floresta tropical brasileira por meio do SPEI baseado em 9-meses e (ii) buscar correlação de longo ou curto prazo dentro do número de dias com precipitaçãoe chuva mensal.
Rev. bras. meteorol.. Publicado em: 05/08/2019
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2. Propriedades Multifractais da Temperatura do Ar Diária no Nordeste do Brasil
Resumo A investigação da dinâmica das variáveis climáticas fornece informações importantes sobre a sua variabilidade espaço-temporal. Compreender esses processos é fundamental para o desenvolvimento de modelos climáticos que sirvam de base para a análise de cenários futuros e para a previsão das mudanças climáticas. Neste trabalho, analisaram-
Rev. bras. meteorol.. Publicado em: 30/05/2019
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3. Genetic parameters for type score traits and milk production in Brazilian Jersey herds
ABSTRACT This study aimed to estimate the heritability coefficients for ten functional type traits and milk production in the Jersey breed in Brazil, besides the genetic and phenotypic correlations between them. The present study utilised data from 1,567 records of linear type traits, including stature (ST), body depth (BD), loin strength (LS), rump width (R
R. Bras. Zootec.. Publicado em: 22/10/2018
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4. Spatial Distribution of Annual and Monthly Rainfall Erosivity in the Jaguarí River Basin
ABSTRACT The Jaguarí River Basin forms the main water supply sources for the São Paulo Metropolitan Region and other cities in the state. Since the kinetic energy of rainfall is the driving force of water erosion, the main cause of land and water degradation, we tested the hypothesis of correlation between the erosive potential of rainfall (erosivity) and
Rev. Bras. Ciênc. Solo. Publicado em: 09/11/2017
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5. Finite element analysis of high modal dynamic responses of a composite floor subjected to human motion under passive live load
Light weight and long span composite floors are common place in modern construction. A critical consequence of this application is undesired vibration which may cause excessive discomfort to occupants. This work investigates the composite floor vibration behavior of an existing building based on a comprehensive study of high modal dynamic responses, the rang
Lat. Am. j. solids struct.. Publicado em: 2013-05
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6. Apolipoprotein E4 influences growth and cognitive responses to micronutrient supplementation in shantytown children from northeast Brazil
OBJECTIVE: Apolipoprotein E4 may benefit children during early periods of life when the body is challenged by infection and nutritional decline. We examined whether apolipoprotein E4 affects intestinal barrier function, improving short-term growth and long-term cognitive outcomes in Brazilian shantytown children. METHODS: A total of 213 Brazilian shantytown
Clinics. Publicado em: 2012
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7. Sobre a evolução hidrodinâmica da matéria nuclear criada em colisões de íons pesados relativísticos - um estudo com condições iniciais flutuantes / On the hydrodynamic evolution of the nuclear matter created in relativistic heavy ion collisions - a study with fluctuating initial conditions
In this work we apply a hydrodynamic model with fluctuating initial conditions in a event by event basis to study some observables in relativistic heavy ion collisions. We show that the introduction of fluctuations, characterized by longitudinal high energy density tubes, turn the computation of the observables closer to data, in comparison to the traditiona
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2011
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8. Study of the photoluminescent properties of MgTiO3 powder and thin films obtained by the polimeric precursor method / Estudo das propriedades fotoluminescentes de pós e filmes finos de MgTiO3 obtidos pelo método dos precursores poliméricos
In this study, MgTiO3 (MTO) powders and thin films that crystallize in a perovskite ilmenite crystalline structure were obtained and characterized. MTO were synthesized by the polymeric precursor method (PPM), which allows obtaining structurally ordered and disordered structures. In addiction, the photoluminescent properties were investigated as a function o
Publicado em: 2011
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9. "Estudo do efeito da anarmonicidade e desordem induzida em filmes de GaAs1-xNx, por espectroscopia Raman"
Raman spectroscopy was used to investigate the vibrational properties in thermally treated and as grown thin films of GaAs1-xNx alloys, with 0,0144 ≤ ≤ 0,0370. Raman spectra exhibit the presence of two GaAs1-xNx characteristic modes. The redshift of the GaAs-like longitudinal-optic phonon (LO1) frequency and the blue shift of GaNlike longitudinal
Publicado em: 2010
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10. Distribution of recombination rates across the chromosome 4 of Arabidopsis thaliana and its association with genomic features / Distribuição de taxas de recombinação ao longo do cromossomo 4 de Arabidopsis thaliana e sua associação com elementos genômicos
Recombination is one of the most important factors in the evolution of genome organization. It provides the links between homologous chromosomes that ensure their proper segregation during the first meiotic division. It is responsible for the creation of novel allele combinations and yields genetic diversity on which evolutionary selection can act. Double-st
Publicado em: 2010
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11. Longevidade foliar, compostos fenolicos e nitrogenados em arvores e lianas de um fragmento de Cerrado na Estação Experimental de Itirapína, São Paulo / Leaf life span, nitrogenous and phenolic compunds in trees and lianas from a Cerrado fragment in the Itirapina experimental station in São Paulo
Trees and lianas present different strategies for allocating resources during the phonological cycle. Whereas Lianas are important floristic components and account for a significant number of rainforest species, few studies have been conducted in the Cerrado (a savanna like vegetation) biome. The duration of the leaf life span in different species reflects b
Publicado em: 2010
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12. DFA e análise de agrupamento aplicadas a perfis de porosidade neutrônico em poçosm de petróleo
Peng was the first to work with the Technical DFA (Detrended Fluctuation Analysis), a tool capable of detecting auto-long-range correlation in time series with non-stationary. In this study, the technique of DFA is used to obtain the Hurst exponent (H) profile of the electric neutron porosity of the 52 oil wells in Namorado Field, located in the Camp
Publicado em: 2009