Results 1 to 10 of about 138,430 (225)
Interfacial Enrichment and Demetallation of a Zinc Porphyrin in the Ionic Liquid [C<sub>4</sub>C<sub>1</sub>Im][PF<sub>6</sub>]. [PDF]
ChemphyschemUpon dissolution of zinc porphyrins with long dodecyl chains in the ionic liquid [C4C1Im][PF6], partial [PF6]‐ hydrolysis occurs along spontaneous porphyrin demetallation. Driven by their buoy‐like chains, the free‐base porphyrins extremely enrich at the outermost surface as proven by angle‐resolved X‐ray photoelectron spectroscopy, an interesting ...
Ceccatto A +3 more
europepmc +2 more sources
Eventos 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
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Enclosure and Camouflage Design of a Prototype Remote Monitoring System for the Protection and Conservation of Territories in the Colombian Amazon Rainforest. [PDF]
Ecol EvolEnclosure and camouflage design to protect electronic equipment of a Remote Monitoring System used for the conservation of Colombian Amazon Rainforest. ABSTRACT Increasing pressure on the Amazon rainforest from illegal mining and deforestation threatens biodiversity.
Barajas M +4 more
europepmc +2 more sources
Revista (RE)DEFINIÇÕES DAS FRONTEIRAS, 2023 Em Vitória do Xingu, no Pará, segundo divulgação em meio digital, existe um projeto da Norte Energia que visa instalar placas solares flutuantes com sistema tracking, o qual conduz o rastreamento da luz solar possibilitando maior eficiência na captação de luz solar, sobre o Rio Xingu, nas dependências da Usina Hidrelétrica Belo Monte, região conhecida ...
Euclides Jacó Benke, Nilson Rosa Faria
openaire +2 more sources
Energies, 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
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DEVELOPMENT OF A FURNACE TO FABRICATE SILICON SOLAR CELLS [PDF]
Tecnologia 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
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EcoMat, 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
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Economia circular e a energia solar fotovoltaica
Colóquio, 2021 Esforços consideráveis estão sendo realizados na introdução gradual de fontes de energias sustentáveis para satisfazer as necessidades futuras de energia. A energia desempenha um papel essencial na economia circular porque as atividades circulares, como
Mario Roberto dos Santos +2 more
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ChemEngineering, 2021 Using a high-flux solar furnace, loosely compacted powders of Va-group transition metal (V, Nb, and Ta) were reacted with stream of NH3 gas (uncracked NH3 gas) being heated by concentrated solar beam to a temperature (T) range between 600 and 1000 °C ...
Nobumitsu Shohoji +6 more
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La energía solar: la solución para los hogares en Colombia
Episteme, 2022 Este artículo desarrolla la problemática de la falta de acceso a la energía eléctrica en cuatro partes, inicia con una contextualización de la energía solar en Colombia; luego viene una segunda parte, relacionada con la implementación de energía solar ...
Leidy Yojana Rivera Velásquez
doaj +1 more source