Results 11 to 20 of about 568,975 (342)

Quantifying the latitudinal representivity of in situ solar wind observations [PDF]

open access: yes, 2020
Advanced space-weather forecasting relies on the ability to accurately predict near-Earth solar wind conditions. For this purpose, physics-based, global numerical models of the solar wind are initialized with photospheric magnetic field and coronagraph ...
Lang, Matthew   +4 more
core   +1 more source

Ultraviolet Erythemal Irradiance (UVER) under Different Sky Conditions in Burgos, Spain: Multilinear Regression and Artificial Neural Network Models

open access: yesApplied Sciences, 2023
Different strategies for modeling Global Horizontal UltraViolet Erythemal irradiance (GHUVE) based on meteorological parameters measured in Burgos (Spain) have been developed. The experimental campaign ran from September 2020 to June 2022.
S. García-Rodríguez   +4 more
doaj   +1 more source

A Numerical Simulation of an Experimental Melting Process of a Phase-Change Material without Convective Flows

open access: yesApplied Sciences, 2022
The melting process of lauric acid in a square container heated from the top surface was numerically studied from an experimental case. Knowledge of this process is of special interest for computationally efficient modeling systems, such as PCM-enhanced ...
Manuel García-Fuente   +2 more
doaj   +1 more source

Photovoltaic Prediction Software: Evaluation with Real Data from Northern Spain

open access: yesApplied Sciences, 2021
Prediction of energy production is crucial for the design and installation of PV plants. In this study, five free and commercial software tools to predict photovoltaic energy production are evaluated: RETScreen, Solar Advisor Model (SAM), PVGIS, PVSyst ...
David González-Peña   +4 more
doaj   +1 more source

Evaluation of the Vertical Sky Component without Obstructions for Daylighting in Burgos, Spain

open access: yesApplied Sciences, 2020
Daylight availability knowledge is the first step for an energetic and visually efficient building and city design. It can be estimated with the Vertical Sky Component (VSC), which is defined as the ratio of the vertical diffuse illuminance over the ...
Diego Granados-López   +4 more
doaj   +1 more source

Research on multi-market strategies for virtual power plants with hydrogen energy storage

open access: yesFrontiers in Energy Research, 2023
As the main body of resource aggregation, Virtual Power Plant (VPP) not only needs to participate in the external energy market but also needs to optimize the management of internal resources.
Wenyu Zhang   +6 more
doaj   +1 more source

Control Method for Improving Voltage Response and Ripple of Isolated DC-DC Converter

open access: yesFrontiers in Energy Research, 2022
Affected by the abrupt changes of load and unregulated first-stage rectifiers, it is difficult for the output voltage of the isolated DC-DC converter with traditional proportional-integral (PI) control to meet the needs of industrial applications such as
Ming Li   +7 more
doaj   +1 more source

The radial evolution of solar wind speeds [PDF]

open access: yes, 2011
The WSA-ENLIL model predicts significant evolution of the solar wind speed. Along a flux tube the solar wind speed at 1.0 AU and beyond is found to be significantly altered from the solar wind speed in the outer corona at 0.1 AU, with most of the change ...
Arge, C. N.   +4 more
core   +3 more sources

Daily data of Global Vertical Insolation in the four cardinal orientations in Burgos, Spain

open access: yesData in Brief, 2018
Daily data of Global, Diffuse and Beam Horizontal Insolation and Global Vertical (North, South, East and West orientations) insolation recorded in Burgos, Spain, are presented in this paper.
M. Diez-Mediavilla   +4 more
doaj   +1 more source

Reconstruction of Helio-latitudinal Structure of the Solar Wind Proton Speed and Density [PDF]

open access: yes, 2015
The modeling of the heliosphere requires continuous three-dimensional solar wind data. The in-situ out-of-ecliptic measurements are very rare, so that other methods of solar wind detection are needed.
Bzowski, Maciej   +3 more
core   +2 more sources

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