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Resultado 21-30 de 47813.
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Data de publicaçãoData de defesaTítuloAutor(es)Orientador(es)Coorientador(es)
Ago-2006-Coeficientes médios da equação de Angström-Prescott, radiação solar e evapotranspiração de referência em BrasíliaDornelas, Karla Daniele e Silva; Silva, Cícero Lopes da; Oliveira, Carlos Alberto da SilvaThe objective of this work was to estimate Angström-Prescott equation mean coefficients in Brasília, DF, Brazil, and their effects on the calculations of global radiation (Rs) and reference crop evapotranspiration (ETo). It was used meteorological data from Embrapa Hortaliças weather station, from 1978 to 2003. The mean coefficients were determined by linear regression analysis considering monthly, annual and total periods. Using the calculated coefficients for different periods and those provided by FAO (0.25 and 0.50), Rs and ETo were estimated and their performances were evaluated. Monthly mean coefficient a varied from 0.241 to 0.345, and b from 0.430 to 0.515. Annual mean coefficients a and b were 0.278 and 0.498, and total means were 0.282 and 0.490, respectively. These coefficients did not differ from each other on radiation estimates. The month of July provided the worse estimates and performance. When using calculated Rs estimates with monthly, annual, total and FAO coefficients, estimated values of ETo did not differ from observed ones, providing excellent performance, despite the mean coefficient used. Depending on the final application, it is suggested the use of total mean coefficients due to their easiness to estimate the shortwave radiation.-
6-Jun-202519-Dez-2024Percepção social da desigualdade de renda no BrasilLima Neta, Avelina AlvesNeves, Angela Vieira-
17-Jan-202318-Dez-2020Avaliação do Programa Mais Médicos : uma análise sob o enfoque da equidadeSantos, Wallace dosMerchan-Hamann, Edgar-
29-Jul-202416-Jan-2023Influência de variáveis executivas no comportamento mecânico de microestacas tubulares autoperfurantes em solo tropicalSilva, Lucas Gabriel Lopes daCunha, Renato Pinto daAlbuquerque, Paulo José Rocha de
Nov-2019-Dimensionamento de barras tracionadas de madeira tropical utilizando a densidade básicaPaula, José Humberto Matias de; Bessa, Marco Aurélio Souza; Melo, Julio Eustaquio de; Morales Sánchez, José Manoel; Oliveira, Camilla Silva Almeida de; Rodrigues, Ágnis Gabrielle Kühl--
2017-Entre o dever da toga e o apoio à farda : independência judicial e imparcialidade no STF durante o regime militarCarvalho, Alexandre Douglas Zaidan de--
13-Mai-20191984O que é comunicaçãoFarias, MarcílioPorto, Sérgio Dayrell-
2005-Políticas de precificação do setor de saneamento urbano no Brasil: as evidências do equilíbrio de baixo nívelFaria, Ricardo Coelho de; Nogueira, Jorge Madeira; Mueller, Bernardo Pinheiro Machado--
2002-Estilos de etnologia indígena na Austrália e no Canadá vistos do BrasilBaines, Stephen Grant--
Dez-2008-Causes of condemnation of carcasses from poultry in slaughterhouses located in State of Goiás, BrazilSantana, Ângela Patrícia; Murata, Luci Sayori; Freitas, Camila Guimarães de; Delphino, Marina Karina; Pimentel, Concepta Margaret McManus--

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