Results 11 to 20 of about 2,333,019 (349)
Temporal Variation of the Rotation in the Solar Transition Region
The Astrophysical Journal Letters, 2023 The temporal variations of solar rotation in the photosphere, chromosphere, and corona have been widely investigated, whereas the rotation of the solar transition region is rarely studied. Here, we perform a primary study about the long-term variation of
Xiaojuan Zhang +4 more
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The Centennial Evolution of Solar Chromospheric Rotation
The Astrophysical JournalRotation is a prominent feature of the Sun, and it plays a crucial role in the generation and dynamic evolution of solar magnetic fields. The daily composite time series of Ca II K plage areas from 1907 February 1 to 2023 December 31 is used to analyze ...
N. B. Xiang +5 more
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Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images
The Astrophysical Journal, 2023 To date, the rotational characteristics of the solar transition region remain unclear. In this work, by applying the flux modulation method to the images derived from the Solar Dynamics Observatory/Atmospheric Imaging Assembly between 2011 and 2022 at ...
Qian-Rui Wu +6 more
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Applied Animal Behaviour Science, 2022 Vegetation management on solar farms can be accomplished through targeted grazing with sheep. To the authors ’ knowledge, no research has been conducted to date on sheep grazing behavior on solar farms, yet such research is crucial to inform grazing ...
Emma W. Kampherbeek +7 more
semanticscholar +1 more source
Aerospace, 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
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Design of a deployment rotation mechanism for microsatellite [PDF]
International Journal for Simulation and Multidisciplinary Design Optimization, 2009 Solar array rotation mechanism provides a hinged joint between the solar panel and satellite body, smooth rotation of the solar array into deployed position and its fixation in this position.
Abdelal G. F., Bakr Elhady A., Kassab M.
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Fluids, 2023 Contemporary three-dimensional physics-based simulations of the solar convection zone disagree with observations. They feature differential rotation substantially different from the true rotation inferred by solar helioseismology and exhibit a conveyor ...
Parag Gupta +2 more
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Investigation of one-dimensional heat flow in a solarflat plate collector with sun tracing system [PDF]
Journal of Agricultural Machinery, 2016 Introduction Drying is one of the most common methods for storing food and agricultural products. During drying process, free water that causes the growth of microorganisms and spoilage of products is removed from the product.
H Samimi Akhijahani +2 more
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Solar rotation over solar cycle 21 [PDF]
International Astronomical Union Colloquium, 1991 Abstract Having measured the rotation rate of sunspots through solar cycle 21, from 1977 to 1983, we have found that the mean differential rotation averaged over this seven year record is similar to the grand average differential rotation determined by Howard et al. (1984) over the period 1921-1982.
Elisabeth Ribes +3 more
openaire +1 more source
SoHO/EIT, Stereo-A, and SDO/AIA View for Solar Coronal Differential Rotation [PDF]
Iranian Journal of Astronomy and AstrophysicsDifferential rotation of the solar corona is challenging due to the nature of short-wavelength emissions. In this study, we aim to measure coronal differential rotation from different perspectives using observations from SoHO/EIT at 195 Å, Stereo-A/EUVI ...
Zahra Shokri +4 more
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