Power Plant
Mostrando 1-12 de 329 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. Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
ABSTRACT Understanding the kinetics of Zn absorption by roots and its effect on morphology of this organ is relevant for improving crop management, but still poorly studied for common beans. Therefore, an experiment was conducted in a hydroponic system with five initial concentrations of Zn (CZnI): 0.0; 1.0; 4.0; 16.0 and 48.0 µmol L-1. The experiment was i
Rev. Ceres. Publicado em: 2021-08
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3. ACCURACY OF GENETIC PARAMETERS ESTIMATION AND PREDICTION OF GENOTYPIC VALUES IN EUCALYPTUS USING DIFFERENT PLOT TYPES
ABSTRACT A suitable experimental design should control the environmental effect and be capable of discriminating genotypes. Two clonal tests of Eucalyptus were planted side by side in a randomized block design with the same 32 treatments under two different plot designs. The first trial was designed with five plants per plot (linear plot, LP) and six block r
CERNE. Publicado em: 2020-12
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4. Pre-harvest desiccation in biomass sorghum with herbicides
ABSTRACT The purpose of this study was to assess the effect of different herbicide treatments on moisture removal and calorific power of biomass sorghum for co-generation of electric energy through burning. The experiment was conducted in randomized complete block design with four replicates per treatment and a 6x4 factorial scheme (six herbicide treatments
Rev. Ceres. Publicado em: 2020-10
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5. Antifungal activity of selected plant extracts based on an ethnodirected study
ABSTRACT Plants have been reported as used by local populations to treat various infections for a long time, which has directed several pharmacological studies. The main aim of this work was to evaluate three plant selection criteria with better predictive power to detect extracts with antifungal action: (1) medicinal plants that are not used for indications
Acta Bot. Bras.. Publicado em: 2020-06
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6. INCREASED ENERGY COGENERATION IN THE SUGAR-ENERGY SECTOR WITH THE USE OF SUGARCANE STRAW, ELECTRIFICATION OF DRIVES, AND HIGH-DRAINAGE ROLLERS IN THE EXTRACTION
ABSTRACT The sugar-energy sector stands out in the production of electrical energy in the Brazilian energy matrix. The updating of Law 9,427 allowed increasing the limit of power injected in the transmission or distribution systems of existing projects from 30 to 50 MW, encouraging studies of expansion and/or implementation of new cogeneration projects. This
Eng. Agríc.. Publicado em: 2020-04
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7. 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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8. 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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9. Seasonal performance of aquatic macrophytes in improving physicochemical parameters of swine wastewater
Resumo Os efluentes da suinocultura apresentam elevado teor de carga orgânica e de nutrientes, o que dificulta o seu tratamento. Dessa forma, as macrófitas aquáticas representam uma alternativa para a despoluição desses efluentes, devido ao alto poder de absorção que essas plantas possuem. Neste contexto, o objetivo deste estudo foi avaliar o desempen
Braz. J. Biol.. Publicado em: 09/12/2019
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10. RIVERINE COMMUNITIES AND BELO MONTE POWER PLANT: DETERRITORIALIZATION AND INFLUENCE ON THE CULTIVATION OF EDIBLE PLANTS1
Resumo A pesquisa objetivou avaliar a importância das plantas alimentícias na manutenção do modo de vida dos ribeirinhos afetados pela Hidrelétrica Belo Monte, num cenário de mudanças socioambientais. Com 60 Unidades Familiares, realizaram-se entrevistas semiestruturadas, observações participantes, turnês guiadas e coletas botânicas. Os dados fora
Ambient. soc.. Publicado em: 02/12/2019
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11. Lightweight high-strength concrete with the use of waste cenosphere as fine aggregate
RESUMO Cenosfera é um sub-produto da combustão do carvão que apresenta interessantes propriedades para ser usado na produção de materiais cimentícios, tais como estrutura oca, baixa densidade, baixa térmica condutividade e notável estabilidade térmica. Além disso, ela mostra reatividade pozolânica na cura térmica. Entretanto, o potencial da cenos
Matéria (Rio J.). Publicado em: 25/11/2019
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12. 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