Results 1 to 10 of about 99,456 (251)
Levantamento dos recursos de energia solar no Brasil com o emprego de satélite geoestacionário: o Projeto Swera [PDF]
O conhecimento da radiação solar incidente na Terra desempenha papel fundamental em muitas atividades humanas como, por exemplo, a agricultura, a arquitetura e o planejamento energético.
Fernando Ramos Martins+2 more
doaj +2 more sources
Barrierless Electron Transfer in a Photosynthetic Reaction Center Model. [PDF]
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 +3 more sources
Deciphering the Energy Transfer Mechanism Across Metal Halide Perovskite-Phthalocyanine Interfaces. [PDF]
This study presents photophysical insights into the energy transfer mechanism between CsPbBr3 perovskite nanocrystals (NCs) interfaced with zinc phthalocyanine (ZnPc) dyes by an unusual Dexter‐type singlet energy transfer, generating singlet oxygen as a proof‐of‐concept, using an arsenal of key time‐resolved spectroscopic techniques, such as ...
Cortés-Villena A+6 more
europepmc +2 more sources
Panorama da energia solar fotovoltaica no Brasil
A matriz elétrica brasileira, composta em sua maior parte por hidrelétricas, depende de um nível estável de chuvas para manter seus reservatórios a níveis satisfatórios. Caso haja uma oscilação no regime das chuvas, e esta oscilação cause um impacto nos reservatórios, é necessário o acionamento das termoelétricas.
Antonio Robson Oliveira da Rosa+1 more
openaire +3 more sources
AQUECIMENTO DE ÁGUA POR ENERGIA SOLAR
Cefet-Sp (Ifsp)+1 more
openaire +3 more sources
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]
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
Electrified methane steam reforming on a washcoated SiSiC foam for low‐carbon hydrogen production
Abstract In view of largely available renewable electricity as a green future resource, here we report the electrification of a Rh/Al2O3 washcoated SiSiC foam for methane steam reforming (MSR). We show that, thanks to the suitable bulk resistivity of the SiSiC foam, its direct Joule heating up to relevant temperatures is feasible; the interconnected ...
Lei Zheng+5 more
wiley +1 more source
Abstract Social innovations are grassroots processes aiming to achieve impacts beyond an individual level and towards a broader societal good. The environmental dimension of impacts refers to any direct change to the environment resulting from social innovation activities, products, or services, which are not addressed by pre‐existing systems.
Valentino Marini Govigli+5 more
wiley +1 more source