Results: 33

Enfoque hacia el uso de energías alternativas en establecimientos de atención médica

Introducción: El tema del cambio climático y sus efectos, en la salud, educación y transporte, es un tema emergente, que pretende la optimización del consumo y la eficiencia energética. Esta investigación se plantea como objetivo,la caracterización del uso y aprovechamiento de energ...

Relationship of vitamin D intake and sun exposure with serum 25-hydroxyvitamin-D in schoolchildren with obesity

Arch. latinoam. nutr; 72 (2), 2022
The obesity worldwide has produced an increase in obesity-related diseases and can be associated with low concentrations of 25-hydroxyvitamin-D. Also obesity and low physical activity can decrease sun exposure, so the aim was to correlate vitamin D intake with serum 25-hydroxyvitamin-D levels and to asse...

Performance Estimation of Grid Connected Photovoltaic Systems in Different Regions in Paraná

Braz. arch. biol. technol; 64 (spe), 2021
Abstract The obtaining of electric energy from solar energy through photovoltaic systems shows great growth due to the solar potential present in the Brazilian territory. In the State of Paraná, studies are recurrent in public and private sectors on the development and performance of this technology. Th...

Integration of a Pilot PV Parking Lot and an Electric Vehicle in a University Campus Located in Curitiba: a Study Case

Braz. arch. biol. technol; 64 (spe), 2021
Abstract Considering the increasing adoption of Hybrid Plug-in and Electric Cars, there are concerns about recharging process of these vehicles considering the capacity of grid to provide sufficient energy to that purpose. In the past years, the growth of distributed energy generation from renewable and ...

Analysis of the technical feasibility of using artificial intelligence for smoothing active power in a photovoltaic system connected to the power system

Braz. arch. biol. technol; 64 (spe), 2021
Abstract Recent technological advances and increased participation of energy systems based on photovoltaic solar energy place this renewable energy source in a prominent position in the current scenario. With the increase in the share of solar photovoltaic systems, the impact of power fluctuations in the...

Analysis of Artificial Neural Networks for Forecasting Photovoltaic Energy Generation with Solar Irradiance

Braz. arch. biol. technol; 64 (spe), 2021
Abstract The growth in the use of solar energy has encouraged the development of techniques for short-term prediction of solar photovoltaic energy generation (PSPEG). Machine learning with Artificial Neural Networks (ANNs) is the most widely used technique to solve this problem. However, comparative stud...

Optimal Dispatch and Technical and Economic Feasibility Analysis of Residential Microgrids Considering Demand Side Management

Braz. arch. biol. technol; 64 (spe), 2021
Abstract The electrical system is becoming more robust with the insertion of distributed energy resources (DERs) and the need for energy autonomy by consumers, given that the current scenario is a growth in demand for electric energy. This paper aims to apply a computational model capable of determining ...

Analysis of PV Systems Installed in Paraná

HIGHLIGHTS Comparative study of the operation of eight real cases of systems installed in Paraná. There is a convergence between the values estimated by the Atlas and the ones calculated. It was possible to identify the cities that presented the greatest figures of merit....

Development and validation of an instrument to assess the knowledge of general practitioners and pediatricians about photoprotection and solar radiation

An. bras. dermatol; 94 (5), 2019
Abstract Background The knowledge of general practitioners about photoprotection is unknown. Objectives To develop and validate an instrument to evaluate the knowledge of general practitioners and pediatricians about photoprotection, gauging the knowledge of these professionals. Methods The study foll...