Results 31 to 40 of about 321,073 (275)
The future of suitable habitats of an endangered Neotropical grassland bird: A path to extinction?
Ecology and Evolution, Volume 13, Issue 2, February 2023., 2023 The Campo Miner is a grassland bird of the Brazilian Cerrado and threatened with extinction that has been suffering from the reduction of habitat. Here, we use ecological niche models to understand the environmental suitability of the species in the present and in the future.
Ricardo C. Meireles +3 more
wiley +1 more source
An application of four‐wire grid‐forming power inverter in unbalanced distribution network
IET Generation, Transmission &Distribution, Volume 17, Issue 2, Page 324-336, January 2023., 2023 Abstract The modelling of a three‐phase four‐leg four‐wire grid‐forming inverter in a low voltage distribution system 18‐bus European Cigré under unbalanced conditions in an autonomous distribution network is presented. The case study has two types of inverters control strategy: (i) grid‐forming to supply all the system demand in the interval of the ...
Jéssica S. Döhler +5 more
wiley +1 more source
Revista Brasileira de Energia Solar, 2021 Diante da atual descentralização da geração de energia, destaca-se como potencial de melhoria o desenvolvimento no Brasil de temas relacionados à atribuição direta de energia elétrica na rede de distribuição, tanto fisicamente, como a renovação das redes
Solange Machado +3 more
semanticscholar +1 more source
Journal of Ecology, Volume 111, Issue 1, Page 263-275, January 2023., 2023 Our results highlight that the selective pressures and evolutionary routes in ant‐plant protective mutualisms may depend on the pool of traits exhibited by partner species. Although some studies have already reported some impact of species traits on the outcome of ant‐plant mutualisms, this is the first time that a generalization about the role of ...
Laura C. Leal +2 more
wiley +1 more source
A DFT‐based method for estimating interharmonics in wind power generation
IET Smart Grid, Volume 5, Issue 5, Page 332-346, October 2022., 2022 Abstract This paper introduces a discrete Fourier transform (DFT)‐based method for estimating the amplitudes and frequencies of interharmonics, which arise from the interaction between wind power generators and electric power systems. This method exploits the synergy of choosing signal enhancement, mains frequency estimation, and re‐sampling techniques.
Henrique L. M. Monteiro +4 more
wiley +1 more source
Previsão do Consumo de Energia Elétrica na Região Nordeste do Brasil
Revista de Engenharia e Pesquisa Aplicada, 2021 Sistemas elétricos de potência coletam grandes volumes de dados que podem fornecer informações valiosas sobre o consumo de energia. As empresas elétricas podem usar esses dados históricos de consumo para auxílio no processo de tomada de decisões no que ...
I. Marcos +1 more
semanticscholar +1 more source
Value of human‐modified forests for the conservation of canopy epiphytes
Biotropica, Volume 54, Issue 4, Page 958-968, July 2022., 2022 Although HMFs provide important refuge for many species, our results show that they do not provide suitable conditions for the maintenance of current or future canopy epiphyte communities. Our findings suggest that conserving large continuous old‐growth forests is the only viable conservation option for protecting most vascular epiphytes.
Edicson Parra‐Sanchez +1 more
wiley +1 more source
Revista de Administração, Contabilidade e Economia da Fundace, 2021 This study aims to analyze the differences in liquidity, indebtedness, profitability and return between companies in the electricity sector, belonging and not belonging to the Corporate Sustainability Index (ISE), in the time from 2008 to 2020.
Matheus Oliveira Fraga +3 more
semanticscholar +1 more source
Concepção de Inversor Multinível para Aplicação em UPS
Eletrônica de Potência, 2014 Este trabalho apresenta o modo rede de operação de um sistema ininterrupto de energia on-line monofásico de 3 kVA operando em baixa frequência, alta eficiência, alto fator de potência e com tensão de entrada e saída de 220 Vca.
Lincoln M. Oliveira +4 more
doaj +1 more source
Transformadores. Funcionamento em paralelo na rede elétrica [PDF]
, 2011 O crescimento do consumo de energia elétrica verificado nos últimos anos e o aparecimento e evolução dos sistemas de produção de energia por fontes de energia renováveis, como a eólica e fotovoltaica, levam a que sejam necessários ajustes no sistema ...
Silveira, Alexandre Miguel Marques da
core +2 more sources