Availability Scenarios
Mostrando 1-12 de 47 artigos, teses e dissertações.
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1. Dinâmica do desmatamento na Amazônia e seus impactos na hidrologia: bacia do Rio Machadinho - Rondônia / Brasil
Resumo A bacia hidrográfica do rio Machadinho é um exemplo de ocupação desordenada presente na região amazônica, na qual foram desmatadas grandes áreas com consequente conversão da floresta em pastagens e em núcleos urbanos. O presente trabalho tem o objetivo de analisar os impactos na hidrologia (vazão, precipitação e evapotranspiração) da bac
Ciênc. Florest.. Publicado em: 02/12/2019
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2. Wood ash and water availability in the production of Paiaguás-grass
Resumo Objetivou-se avaliar a produção do capim-paiaguás (Urochloa brizantha) em função de doses de cinza vegetal e disponibilidades hídricas do Latossolo Vermelho do Cerrado. O experimento foi realizado em casa de vegetação com delineamento em blocos casualizados em esquema fatorial 5x5 fracionado, correspondendo a cinco doses de cinza vegetal (0; 8
Rev. Ambient. Água. Publicado em: 25/11/2019
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3. Increased atmospheric CO2 changes the photosynthetic responses of Acrocomia aculeata (Arecaceae) to drought
ABSTRACT Water availability is the main factor that explains current patterns of palm abundance. However, the interaction between water stress and increasing atmospheric CO2 concentrations caused by climatic change and its effects on palm physiology remain poorly known. Macauba palm is a widespread Neotropical species commonly found in ecosystems subjected t
Acta Bot. Bras.. Publicado em: 12/09/2019
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4. Deforestation impact on discharge regime in the Doce River Basin
Resumo A resposta hidrológica em bacias hidrográficas devido às mudanças do uso do solo pode ser avaliada por meio da construção de cenários, usando modelos hidrológicos. Nesse contexto, o objetivo desse trabalho foi analisar as consequências do desmatamento no comportamento hidrológico da bacia hidrográfica do rio Doce, que possui uma área de dr
Rev. Ambient. Água. Publicado em: 15/07/2019
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5. Multivariate adaptive regression splines (MARS) applied to daily reference evapotranspiration modeling with limited weather data
ABSTRACT. Estimation of reference evapotranspiration (ETo) is very relevant for water resource management. The Penman-Monteith (PM) equation was proposed by the Food and Agriculture Organization (FAO) as the standard method for estimation of ETo. However, this method requires various weather data, such as air temperature, wind speed, solar radiation and rela
Acta Sci., Agron.. Publicado em: 28/03/2019
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6. IMPACT OF LAND USE CHANGE ON THE WATER BALANCE IN A REPRESENTATIVE WATERSHED IN THE SEMIARID OF THE STATE OF PERNAMBUCO USING THE SWAT MODEL
ABSTRACT The Brazilian semiarid region present high rainfall variability and long dry periods. Thus, the main springs and streams are generally intermittent, and both native vegetation and human activities have a strong influence on hydrological processes and the water yield in the watershed. The aim of this study was to investigate the impacts of reforestat
Eng. Agríc.. Publicado em: 2019-02
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7. Study of the electricity consumption reduction of a compressed air system: the case of a steelmaking company
Abstract This work aims to reduce the energy consumption and thus increase the availability of blast furnace compressors of a steelmaking company, located in Alto Paraopeba region in Minas Gerais state, Brazil, through the elimination of waste points in the compressed air distribution. In order to develop this work, an ultrasound test in the compressed air l
REM, Int. Eng. J.. Publicado em: 2017-12
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8. Shallow aquifer response to climate change scenarios in a small catchment in the Guarani Aquifer outcrop zone
ABSTRACT Water availability restrictions are already a reality in several countries. This issue is likely to worsen due to climate change, predicted for the upcoming decades. This study aims to estimate the impacts of climate change on groundwater system in the Guarani Aquifer outcrop zone. Global Climate Models (GCM) outputs were used as inputs to a water b
An. Acad. Bras. Ciênc.. Publicado em: 2017-05
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9. How can dairies maximize their profits and properly remunerate their dairy farmers?
ABSTRACT The current pricing process of raw milk in Brazil discourages producers from improving milk composition, which affects both yield and quality of dairy products. Furthermore, small and medium-sized dairies face great difficulties when it comes to planning production. Thus, a linear programming model was developed to price the raw milk and determine t
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-02
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10. Network modelling of palm biodiesel plants to supply the isolated electric power systems of Pará state
Despite the great advance brought by the National Interconnected System (NIS), which is able to provide clean hydroelectric power to almost all Brazilian customers, there are still cities supplied by power generated from fossil fuel, which are subsidized by taxes, they are called Isolated Electric Power Systems (IEPS). Pará State, that has 34 cities with IE
Prod.. Publicado em: 01/10/2013
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11. Desafios e oportunidades da geração eólica e termelétrica a gás natural no Sistema Elétrico Peruano. / Challenges and opportunities of the wind generation and to natural gas thermal in the Peruvian Electricity System.
Several countries around the world have increasingly sought to diversify their electrical matrix in order to reduce dependence on fossil fuels and reduce emissions of gases responsible for worsening greenhouse effect in the atmosphere. As a result, has grown the participation of some renewable energy sources that until two decades ago did not occupied a prom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/02/2012
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12. Selecting the most adequate bedding material for broiler production in Brazil
Broiler chicken production is widely dispersed across the globe, and one important issue for growers is the selection of adequate bedding material, as the availability and price of substrates varies among countries and regions within a same country. This study aimed at applying a multiple criteria analysis approach for the selection of the most appropriate b
Revista Brasileira de Ciência Avícola. Publicado em: 2012-06