Forecast
Mostrando 25-36 de 492 artigos, teses e dissertações.
-
25. Application of SAC-SMA and IPH II hydrological models in the Teles Pires River basin, Brazil
RESUMO A parametrização e a análise do desempenho de um modelo hidrológico permitem sua consolidação para avaliação de estratégias de gerenciamento de recursos hídricos e para previsão de eventos extremos. Nesse contexto, o objetivo do trabalho foi avaliar o desempenho dos modelos chuva-vazão Soil Moisture Accounting (SAC-SMA) e IPH II para pred
RBRH. Publicado em: 11/04/2019
-
26. Data assimilation using the ensemble Kalman filter in a distributed hydrological model on the Tocantins River, Brasil
RESUMO Neste trabalho, o método de assimilação de dados por filtro de Kalman por conjunto (EnKF) é aplicado na bacia do rio Tocantins. Esse método atualiza as vazões do rio usando um modelo hidrológico distribuído. O desempenho de EnKF é também comparado com um método de assimilação empírico a intervalos de tempo horário, onde duas aplicaçõ
RBRH. Publicado em: 04/04/2019
-
27. Evaluation of an iron ore price forecast using a geometric Brownian motion model
Abstract Mining projects are often budgeted in millions of dollars, making it of interest to the investor to measure a project’s uncertainties and risks, which include the changes in the commodity price. The simulation of asset prices is valid because it enables displaying, with a degree of certainty, the future behavior of a financial asset. One of the mo
REM, Int. Eng. J.. Publicado em: 2019-03
-
28. Uma Medida de PIB Mensal Para o Brasil Usando o Term Spread
Resumo Neste trabalho, construímos uma medida de PIB mensal brasileiro utilizando um modelo na forma espaço de estados, estimado via filtro de Kalman impondo uma restrição de agregação no tempo: a soma da taxa instantânea de crescimento do PIB mensal nos meses de cada trimestre é igual à taxa instantânea de crescimento trimestral do PIB divulgado p
Rev. Bras. Econ.. Publicado em: 2019-03
-
29. Analysis of the brazilian federal bridge inventory
Resumo A gestão de pontes promove suporte na tomada de decisões gerenciais, otimizando as intervenções necessárias sob limitações orçamentárias. Nessa perspectiva, o Departamento Federal de Transportes (DNIT) desenvolveu o Sistema Brasileiro de Gerenciamento de Pontes (SGO) e promoveu o mais abrangente inventário de pontes rodoviárias sob sua admi
Rev. IBRACON Estrut. Mater.. Publicado em: 2019-02
-
30. The use of intervention analysis of the mortality rates from breast cancer in assessing the Brazilian screening programme
Abstract Introduction There is a need to develop methods to evaluate public health interventions. Therefore, this work proposed an intervention analysis on time series of breast cancer mortality rates to assess the effects of an action of the Brazilian Screening Programme. Methods The analysed series was the monthly female breast cancer mortality rates f
Res. Biomed. Eng.. Publicado em: 08/11/2018
-
31. Electric power load in Brazil: view on the long-term forecasting models
Abstract Paper aims This paper aims to discuss how the energy load forecasts used by the System Operator and the main agents of the sector are made, and for what purposes, besides discuss the forecast deviations of the ONS’s and EPE’s models and their consequences and costs to the agents involved. Originality Fill a gap in the Brazilian literature wh
Prod.. Publicado em: 08/10/2018
-
32. Molecular screening of blue mussels indicated high mid-summer prevalence of human genogroup II Noroviruses, including the pandemic "GII.4 2012" variants in UK coastal waters during 2013
Abstract This molecular study is the first report, to the best of our knowledge, on identification of norovirus, NoV GII.4 Sydney 2012 variants, from blue mussels collected from UK coastal waters. Blue mussels (three pooled samples from twelve mussels) collected during the 2013 summer months from UK coastal sites were screened by RT-PCR assays. PCR products
Braz. J. Microbiol.. Publicado em: 2018-06
-
33. ANALYSIS OF THE PHENOLOGY DYNAMICS OF BRAZILIAN CAATINGA SPECIES WITH NDVI TIME SERIES
ABSTRACT In Brazil there are six well-defined biomes and the Caatinga represents 9.92% of the total area. This biome is exclusively Brazilian and very rich in biodiversity. Because it has low resistance to human interference is necessary to know the important factors in monitoring the biome. Vegetation coverage and climate are two of these factors, as they i
CERNE. Publicado em: 2018-03
-
34. Avaliação do Desempenho das Simulações por Conjunto do Modelo Eta-5km para o Caso de Chuva Intensa na Bacia do Rio Paraíba do Sul em Janeiro de 2000
Resumo O objetivo deste estudo é avaliar o desempenho das simulações por conjunto do modelo Eta-5km do Instituto Nacional de Pesquisas Espaciais para um caso de chuva intensa ocorrido na Bacia do Rio Paraíba do Sul em janeiro de 2000, durante um evento de Zona de Convergência do Atlântico Sul. O conjunto de simulações é formado por 5 membros, denomi
Rev. bras. meteorol.. Publicado em: 2018-03
-
35. Analysts' Consensus and Target Price Accuracy: A Study in Latin America
Abstract Market analysts, by means of issuance of their opinions (earnings per share, target prices, and recommendations), have been the object of several earlier studies. Previous literature identifies analysts as information intermediaries between companies and investors, and identifies their role in reducing the information asymmetry. This study investiga
BAR, Braz. Adm. Rev.. Publicado em: 18/12/2017
-
36. REFERENCE EVAPOTRANSPIRATION FORECASTING BY ARTIFICIAL NEURAL NETWORKS
ABSTRACT: Evapotranspiration (ET) is the main component of water balance in agricultural systems and the most active variable of the hydrological cycle. In the literature, few studies have used the forecast the day before via Artificial Neural Networks (ANNs) for the northern region of São Paulo state, Brazil. Therefore, this aimed to predict the reference
Eng. Agríc.. Publicado em: 2017-12