Results 11 to 20 of about 2,373,958 (343)
Algorithm for frequency capture and rectification in a low-orbit satellite IoT communication network
Mathematical Biosciences and Engineering, 2021 In satellite communication systems, due to relative motion between satellites and that between satellites and the ground, the resulting Doppler frequency offset adversely affects communication synchronization.
Jie Shen +3 more
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Mathematical Biosciences and Engineering, 2022 This paper investigates a left-hand circularly polarized (LHCP) antenna and a right-hand circularly polarized (RHCP) antenna on LEO Satellite, which is based on the phase-tuning metasurface. We overcome its inherent limitations in size, weight and power,
Jie Shen, Han-min Liu, Jing Wang
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Solar Ultraviolet Irradiance Characterization under All Sky Conditions in Burgos, Spain
Applied 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
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Applied 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
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Extension of PAR Models under Local All-Sky Conditions to Different Climatic Zones
Applied 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
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The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere [PDF]
Astrophysical 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
Applied 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
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Applied 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
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The Solar Orbiter Solar Wind Analyser (SWA) suite
Astronomy & 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
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The multi-scale nature of the solar wind [PDF]
Living 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