Hydroelectric Plant
Mostrando 1-12 de 84 artigos, teses e dissertações.
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1. Equipment for Monitoring Synchronous Generators Condition through External Magnetic Field Waveforms
Abstract This paper presents an equipment for monitoring synchronous generators condition through characteristics of the time derivative of the external magnetic field. The developed monitoring methodology allows the identification of established or incipient faults, by detecting changes in the magnetic signature of the synchronous generator. In this methodo
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. The discourse and coordination among advocacy coalitions: the case of Belo Monte
Abstract Purpose This study aims to analyze the use of discourse to solve issues related to coordination between advocacy coalitions in processes of gradual and transformative institutional change related to public policies. Design/methodology/approach Theoretical background is based on the advocacy coalition framework (ACF), new discursive institutionalis
RAUSP Manag. J.. Publicado em: 2020-03
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3. Checklist of the fishes from Jamari River basin, in areas under influence of dams, Rondônia, Brazil
Resumo: O rio Madeira é o mais extenso afluente do rio Amazonas e possui a maior biodiversidade de peixes do mundo. Em sua margem direita, o rio Madeira recebe o rio Jamari, no qual foi construída a primeira usina hidrelétrica (UHE) do estado de Rondônia, a UHE Samuel. Além desta, outros barramentos foram construídos no rio Jamari e em seus afluentes,
Biota Neotrop.. Publicado em: 13/12/2019
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4. Long-term behavior of mortars produced with sulfide-bearing aggregates
ABSTRACT The variety of sulfides (inorganic compounds formed by combining sulfur with a metal element) presented in earth crust is not small, which makes it difficult to avoid the use of sulfide-bearing aggregates in the concrete, especially in places where another source of material is non-existent or economically impracticable, as is the case of dams. With
Matéria (Rio J.). Publicado em: 25/11/2019
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5. Rabies virus monitoring in bat populations in Rondônia state, Brazil
Abstract INTRODUCTION: The Jirau hydroelectric power plant built in Rondônia state has environmental impacts that could be relevant to rabies outbreaks. METHODS: Bat populations were monitored for rabies by fluorescent antibody testing and simplified fluorescent inhibition microtesting between 2010 and 2015. RESULTS: All 1,183 bats tested negative for
Rev. Soc. Bras. Med. Trop.. Publicado em: 01/08/2019
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6. Long-term behavior of mortars produced with sulfide-bearing aggregates
ABSTRACT The variety of sulfides (inorganic compounds formed by combining sulfur with a metal element) present in earth crust is not small, which makes it difficult to avoid the use of sulfide-bearing aggregates in the concrete, especially in places where another source of material is non-existent or economically impracticable, as is the case of dams in Braz
Matéria (Rio J.). Publicado em: 10/06/2019
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7. Population structure of Macrobrachium amazonicum (Heller, 1862) (Decapoda: Palaemonidae) in Miranda Hydroelectric Plant Reservoir, Araguari river, Minas Gerais, Brazil
Resumo Objetivo O presente estudo analisou a estrutura populacional de M. amazonicum em um reservatório no “Triângulo Mineiro”, Brasil. Métodos Coletas mensais foram realizadas de abril/2012 a maio/2013 no reservatório da Usina Hidrelétrica de Miranda localizado no rio Araguari, estado de Minas Gerais. Um setor de amostragem de 100 m de compriment
Acta Limnol. Bras.. Publicado em: 16/05/2019
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8. The influence of a large reservoir on the reproductive activity of the white piranha, Serrasalmus brandtii (Lütken, 1875) in Southeast Brazil
Resumo: Com o objetivo de avaliar a influência da barragem de Três Marias na reprodução da piranha branca, Serrasalmus brandtii, foram analisados 1569 exemplares capturados de junho de 2011 a maio de 2012 em três trechos da bacia do rio São Francisco: seção 1 = reservatório de Três Marias (RTM); seção 2 = segmento do rio São Francisco (SRF) imed
Biota Neotrop.. Publicado em: 25/02/2019
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9. ESTIMATES OF MONTHLY AND ANNUAL EVAPORATION RATES AND EVAPORATED VOLUMES PER UNIT TIME IN THE TUCURUÍ-PA AND LAJEADO-TO HYDROELECTRIC POWER PLANT RESERVOIRS BASED ON DIFFERENT METHODS
ABSTRACT Evaporation rates in reservoirs influence the volume of water available for multiple uses. Thus, the objective of this study was to estimate the evaporation rates and the evaporated volumes per unit time in the Tucuruí-PA and Lajeado-TO reservoirs based on the methods in Linacre (1993), Kohler et al. (1955), Morton (1983), Bruin & Keijman (1979) an
Eng. Agríc.. Publicado em: 2018-01
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10. Richness and structure of ant assemblies (Hymenoptera: Formicidae) in Atlantic forest in southern Brazil
ABSTRACT Ant diversity is influenced by the structural complexity of the environment. Ants are thus an ecologically important group due to their potential to serve as indicators of environmental quality. The objective of this study was to evaluate ant diversity in areas with different land use histories and thus, within different stages of regeneration in th
An. Acad. Bras. Ciênc.. Publicado em: 11/12/2017
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11. Development of a Powder-feed Device and Procedures for the Application of an Experimental Alloy in Overhead PTA-P Welding
Abstract: When they are damaged by cavitation, hydroelectric power plant turbine blades must be repaired using operations that could benefit from developments in welding technologies. In light of this, the LABSOLDA welding laboratory at the Federal University of Santa Catarina is making efforts to enhance the flexibility and robustness of the powder-fed plas
Soldag. insp.. Publicado em: 2015-12
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12. The influence of the area of the Serra da Mesa Hydroelectric Plant, State of Goiás, on the frequency and diversity of anophelines (Diptera: Culicidae): a study on the effect of a reservoir
INTRODUCTION: Bioecological aspects of anophelines (Diptera: Culicidae) near areas under the direct influence of the hydroelectric plant reservoir of Serra da Mesa in Goiás, Brazil, were analyzed. METHODS: Samples were collected at the surrounding dam area during the phases before and after reservoir impoundment. The influence of climatic and environmental
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-01