Results 1 to 10 of about 98,527 (209)

Barrierless Electron Transfer in a Photosynthetic Reaction Center Model. [PDF]

open access: yesAngew Chem Int Ed Engl
Ultrafast IR absorption spectroscopy was utilized to interrogate excited‐state electron transfer in a strongly‐coupled, cyanide‐bridged photoinduced mixed‐valent system. Despite structural asymmetry, a flat excited‐state potential energy surface with a single minimum was found, showing a Class III behavior.
Ullrich T   +3 more
europepmc   +2 more sources

Energia Solar

open access: yesEventos Pedagógicos, 2011
Este projeto trata da implantação de células fotovoltaicas na forma de postes independentes na área externa da escola Oswaldo Cruz em Sinop- MT, mais especificamente no estacionamento do local, e também a implantação de placas solares nas guaritas e nos
Paulo Henrique Dias de Borba   +3 more
doaj   +1 more source

Secondary frequency control of islanded microgrid considering wind and solar stochastics [PDF]

open access: yesActa Energiae Solaris Sinica 45 (2024) 523-533, 2023
This paper proposed a model predictive control (MPC) secondary frequency control method considering wind and solar power generation stochastics. The extended state-space matrix including unknown stochastic power disturbance is established, and a Kalman filter is used to observe the unknown disturbance.
arxiv   +1 more source

DEVELOPMENT OF A FURNACE TO FABRICATE SILICON SOLAR CELLS [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2012
Solar cell world market had an exponential growth in the last decade and nowadays it continues in expansion. To produce solar cells, dopants need to be introduced into the crystalline silicon wafer in order to form the pn junction.
Sérgio Boscato Garcia   +2 more
doaj   +1 more source

Labeling of Installed Heating Appliances in Residential Buildings: An Energy Labeling Methodology for Improving Consumers’ Awareness

open access: yesEnergies, 2021
In the EU 28, the installed heating appliance stock is quite old, with an actual replacement rate of 4%. This is directly reflected in the average efficiency of the installed heating systems, where around 60% of the stock is rated with an energy class of
Diego Menegon   +3 more
doaj   +1 more source

ENERGIA SOLAR FOTOVOLTAICA: REVISÃO BIBLIOGRAFICA

open access: yesRevista Mythos, 2021
A demanda pela diversificação da matriz energética brasileira tem se tornado cada vez mais importante, sendo estimulado por dois principais fatores. Primeiro pelo atual panorama energético, pois a diminuição das chuvas vem acontecendo frequentemente e a consequência faz com que aconteça a redução de energia geradas pelas hidrelétricas.
Matheus Segundo da Silva   +3 more
openaire   +2 more sources

Layered metal halide perovskite solar cells: A review from structure‐properties perspective towards maximization of their performance and stability

open access: yesEcoMat, 2021
Perovskite solar cells (PSCs) technology is now reaching its full potential in terms of power conversion efficiency, but still presenting problems related to long‐term stability under operating conditions.
Matheus S. deHolanda   +4 more
doaj   +1 more source

ENERGIA SOLAR E SUA VIABILIZAÇÃO

open access: yesRevista Ibero-Americana de Humanidades, Ciências e Educação, 2021
Os painéis fotovoltaicos possibilitam a maneira mais inteligente de se converter a energia solar diretamente em energia elétrica, quando a luz solar atinge uma célula fotovoltaica, é formada uma corrente elétrica pequena, sendo assim recolhida e injetada para os outros componentes que formam o sistema.
Ronilson Jardim Sousa   +5 more
openaire   +2 more sources

Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid

open access: yesEnergies, 2019
Parabolic trough collector (PTC) technology is currently the most mature solar technology, which has led to the accumulation of relevant operational experience. The overall performance and efficiency of these plants depends on several components, and the
Cristina Prieto   +3 more
doaj   +1 more source

Energia solar na construção civil nos Gerais de Balsas, Maranhão: uma perspectiva de sustentabilidade

open access: yesRCT: Revista de Ciência e Tecnologia, 2022
Considerando a importância dos recursos energéticos renováveis, o objetivo desta pesquisa é analisar o uso de energia solar na construção civil nos Gerais de Balsas-MA.
Natália dos Santos Mota   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy