Results 21 to 30 of about 2,436,355 (386)

Extension of PAR Models under Local All-Sky Conditions to Different Climatic Zones

open access: yesApplied Sciences, 2022
Four models for predicting Photosynthetically Active Radiation (PAR) were obtained through MultiLinear Regression (MLR) and an Artificial Neural Network (ANN) based on 10 meteorological indices previously selected from a feature selection algorithm.
Ana García-Rodríguez   +4 more
doaj   +1 more source

Solar Ultraviolet Irradiance Characterization under All Sky Conditions in Burgos, Spain

open access: yesApplied Sciences, 2022
Solar Ultraviolet Radiation (UVR), which is identified as a major environmental health hazard, is responsible for a variety of photochemical reactions with direct effects on urban and aquatic ecosystems, human health, plant growth, and the deterioration ...
Sol García-Rodríguez   +4 more
doaj   +1 more source

Modeling Horizontal Ultraviolet Irradiance for All Sky Conditions by Using Artificial Neural Networks and Regression Models

open access: yesApplied Sciences, 2023
In the present study, different models constructed with meteorological variables are proposed for the determination of horizontal ultraviolet irradiance (IUV), on the basis of data collected at Burgos (Spain) during an experimental campaign between March
M. I. Dieste-Velasco   +4 more
doaj   +1 more source

The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
The first two orbits of the Parker Solar Probe spacecraft have enabled the first in situ measurements of the solar wind down to a heliocentric distance of 0.17 au (or 36 ).
C. Chen   +24 more
semanticscholar   +1 more source

The Solar Orbiter Solar Wind Analyser (SWA) suite

open access: yesAstronomy & Astrophysics, 2020
The Solar Orbiter mission seeks to make connections between the physical processes occurring at the Sun or in the solar corona and the nature of the solar wind created by those processes which is subsequently observed at the spacecraft.
C. Owen   +128 more
semanticscholar   +1 more source

The multi-scale nature of the solar wind [PDF]

open access: yesLiving Reviews in Solar Physics, 2018
The solar wind is a magnetized plasma and as such exhibits collective plasma behavior associated with its characteristic spatial and temporal scales. The characteristic length scales include the size of the heliosphere, the collisional mean free paths of
D. Verscharen, K. Klein, B. Maruca
semanticscholar   +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

Electrons in the Young Solar Wind: First Results from the Parker Solar Probe [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
The Solar Wind Electrons Alphas and Protons experiment on the Parker Solar Probe (PSP) mission measures the three-dimensional electron velocity distribution function.
J. Halekas   +17 more
semanticscholar   +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

Proton-proton collisional age to order solar wind types [PDF]

open access: yesA&A 636, A103 (2020), 2020
The properties of a solar wind stream are determined by its source region and by transport effects. Independently of the solar wind type, the solar wind measured in situ is always affected by both. We consider the proton-proton collisional age as an ordering parameter for the solar wind at 1AU and explore its relation to the solar wind classification ...
arxiv   +1 more source

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