Results 11 to 20 of about 4,608,934 (308)

Passive Sorting of Asteroid Material Using Solar Radiation Pressure [PDF]

open access: yesJournal of Guidance, Control, and Dynamics, 2014
Understanding dust dynamics in the vicinity of asteroids is key for future science missions and, in the long-term, for asteroid exploitation. This paper analyzes the feasibility of manipulating asteroid material by means of solar radiation pressure. A novel method is proposed for passively sorting material as a function of its grain size or density ...
Garcia Yarnoz, Daniel   +2 more
core   +11 more sources

Orbital Dynamics of "Smart-Dust" Devices with Solar Radiation Pressure and Drag [PDF]

open access: yesJournal of Guidance, Control, and Dynamics, 2011
This paper investigates how perturbations due to asymmetric solar radiation pressure, in the presence of Earth shadow, and atmospheric drag can be balanced to obtain long-lived Earth centred orbits for swarms of micro-scale 'smart dust' devices, without the use of active control.
COLOMBO, CAMILLA, Mcinnes, Colin
core   +8 more sources

Does Incident Solar Ultraviolet Radiation Lower Blood Pressure? [PDF]

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Hypertension remains a leading global cause for premature death and disease. Most treatment guidelines emphasize the importance of risk factors, but not all are known, modifiable, or easily avoided.
Richard B. Weller   +7 more
doaj   +5 more sources

A new analytical solar radiation pressure model for current BeiDou satellites: IGGBSPM. [PDF]

open access: yesSci Rep, 2016
An analytical solar radiation pressure (SRP) model, IGGBSPM (an abbreviation for Institute of Geodesy and Geophysics BeiDou Solar Pressure Model), has been developed for three BeiDou satellite types, namely, geostationary orbit (GEO), inclined ...
Tan B, Yuan Y, Zhang B, Hsu HZ, Ou J.
europepmc   +2 more sources

Solar radiation pressure resonances in Low Earth Orbits [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
The aim of this work is to highlight the crucial role that orbital resonances associated with solar radiation pressure can have in Low Earth Orbit. We review the corresponding literature, and provide an analytical tool to estimate the maximum eccentricity which can be achieved for well-defined initial conditions.
Elisa Maria Alessi   +3 more
openaire   +6 more sources

Model Predictive Control-Based Attitude Control of Under-Actuated Spacecraft Using Solar Radiation Pressure

open access: yesAerospace, 2022
An attitude control strategy for an under-actuated spacecraft with two reaction wheels is proposed, using the active assistance of solar radiation pressure torque.
Lei Jin, Yingjie Li
doaj   +3 more sources

Detecting solar chameleons through radiation pressure

open access: yesPhysics Letters B, 2014
Light scalar fields can drive the accelerated expansion of the universe. Hence, they are obvious dark energy candidates. To make such models compatible with tests of General Relativity in the solar system and “fifth force” searches on Earth, one needs to
S. Baum   +6 more
doaj   +6 more sources

A Priori Solar Radiation Pressure Model for BeiDou-3 MEO Satellites

open access: yesRemote Sensing, 2019
Due to the cuboid satellite body of BeiDou-3 satellites, the accuracy of their orbit showed a trend of systematic variation with the sun-satellite-earth angle (ε) using the Extend CODE Orbit Model (ECOM1).
Guanwen Huang   +2 more
exaly   +2 more sources

Analysis of Effect of Solar Radiation Pressure of Bigger Primary on the Evolution of Periodic Orbits

open access: yesInternational Journal of Astronomy and Astrophysics, 2016
Evolution of periodic orbits in Sun-Mars and Sun-Earth systems are analyzed using Poincare surface of section technique and the effects of solar radiation pressure of bigger primary and actual oblateness of smaller primary on these orbits areconsidered ...
Niraj Pathak
exaly   +2 more sources

Predicting Solar Power Generation Based on the Combination of Meteorological Parameters in Iran: Neural Networks Approach [PDF]

open access: yesJournal of Renewable Energy and Environment, 2023
Clean solar energy is one of the best sources of energy. Solar power plants can generate electricity in Iran due to their large number of sunny days. This paper presents a short-term forecasting approach based on artificial neural networks (ANNs) for ...
Abbas Ahmadi, Mahsa Zaman, Siab Mamipour
doaj   +1 more source

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