Results 41 to 50 of about 39,260 (307)

Solar Radiation Pressure Modeling and Application of BDS Satellites [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2020
Solar radiation pressure (SRP) model is the basis of high precise orbit determination and positioning of navigation satellites. At present, it is common to see the study of SRP model of BDS satellites.
Qiuli CHEN,Hui YANG,Zhonggui CHEN,Haihong WANG,Chen WANG
doaj   +1 more source

Solar Sailing: applications and technology advancement [PDF]

open access: yes, 2011
Harnessing the power of the Sun to propel a spacecraft may appear somewhat ambitious and the observation that light exerts a force contradicts everyday experiences.
Macdonald, Malcolm, Malcolm Macdonald
core   +1 more source

Pc5 Magnetic Pulsations during the Outer Electron Radiation Belt

open access: yesInternational Journal of Technology, 2014
Since the discovery of the radiation belt decades ago, there still remain some fundamental questions as to which one is the mechanism responsible for the acceleration of electrons. Ground-based Pc5 magnetic pulsation during the process of increasing of 2-
L. Muhammad Musafar K   +4 more
doaj   +1 more source

Evapotranspiration Estimation Using Machine Learning Methods

open access: yesJournal of Horticultural Research, 2023
The study examined the performance of four machine learning algorithms (regression trees, boosted trees, random forests, and artificial neural networks) for estimating evapotranspiration (ETo) based on incomplete meteorological data.
Treder Waldemar   +3 more
doaj   +1 more source

Atmospheric Factors Affecting Global Solar and Photosynthetically Active Radiation Relationship in a Mediterranean Forest Site

open access: yesAtmosphere, 2022
Light availability and its composition in components affecting plant growth as photosynthetically active radiation (PAR), are of critical importance in agricultural and environmental research.
Nikolaos D. Proutsos   +5 more
doaj   +1 more source

A Comparative Evaluation of Artificial Neural Network and Sunshine Based models in prediction of Daily Global Solar Radiation of Lalibela, Ethiopia

open access: yesCogent Engineering, 2022
Due to a lack of solar radiation measurement instruments in various regions across the world, particularly in Ethiopia, many empirical models have been developed to estimate global solar radiation. Reliable global solar radiation information is essential
Tegenu Argaw Woldegiyorgis   +3 more
doaj   +1 more source

Solar Radiation Pressure Enabled Femtosatellite-Based Earth Remote Sensing [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2020
Recent developments in electronics have pushed miniaturised satellites to the femto-scale, with masses between 10 and 100 g. Although femtosatellites have been proven as a feasible concept, most designs are limited in mission capacity and lifetime due to the lack of environmental protection and onboard propellant.
Cao, J.   +3 more
openaire   +4 more sources

Magnetic field at geosynchronous orbit during high-speed stream-driven storms: Connections to the solar wind, the plasma sheet, and the outer electron radiation belt [PDF]

open access: yes, 2010
Superposed-epoch analysis is performed on magnetic field measurements from five GOES spacecraft in geosynchronous orbit during 63 high-speed stream-driven storms in 1995–2005. The field strength and the field stretching angle are examined as functions of
Joseph E. Borovsky   +3 more
core   +1 more source

Solar Climate Features Taking into Account the Morphometric Conditions of the Area and the Possibility of Using Them in Heliotherapy on the Example of the Cieplice and Kołobrzeg Health Resorts (Poland)

open access: yesAtmosphere, 2021
Global solar radiation is an important atmospheric stimulus affecting the human body and has been used in heliotherapy for years. In addition to environmental factors, the effectiveness of global solar radiation is increasingly influenced by human ...
Dawid Szatten, Mirosław Więcław
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

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