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A Relationship Between the Solar Rotation and Activity Analysed by Tracing Sunspot Groups
, 2017The sunspot position published in the data bases of the Greenwich Photoheliographic Results (GPR), the US Air Force Solar Optical Observing Network and National Oceanic and Atmospheric Administration (USAF/NOAA), and of the Debrecen Photoheliographic ...
D. Ruždjak +4 more
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Differential rotation of short-lived solar filaments [PDF]
Solar Physics, 1977 We have measured the rotation rate of short-lived solar filaments as a function of their latitude. The resulting rotation curve appears to be somewhat flatter than the corresponding curve for long-lived ...
Frances Tang
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Solar Differential Rotation and Oblateness
Science, 1969An investigation of the time development of differential rotation produced by the solar wind torque indicates that the sun has a rapidly rotating core.
A, Clark, J H, Thomas, P A, Clark
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1986
It is pointed out that the solar rotation curve published by Duvall et al. has been obtained without considering the accuracy of the observations. When the limited accuracy, of the order of 10−2, is taken into account, it is found that the data are compatible with a nearly solid rotation and that they do not contain enough information to give any ...
M. Gabriel, F. Nemry
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It is pointed out that the solar rotation curve published by Duvall et al. has been obtained without considering the accuracy of the observations. When the limited accuracy, of the order of 10−2, is taken into account, it is found that the data are compatible with a nearly solid rotation and that they do not contain enough information to give any ...
M. Gabriel, F. Nemry
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2020
As the population of India grows exponentially day by day, there is an equal rise in energy demand to meet the needs of the masses. Moreover, we have very low amounts of non-renewable energy resources. So, the most viable alternative is to effectively use the renewable sources of energy.
Odugu Rama devi +2 more
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As the population of India grows exponentially day by day, there is an equal rise in energy demand to meet the needs of the masses. Moreover, we have very low amounts of non-renewable energy resources. So, the most viable alternative is to effectively use the renewable sources of energy.
Odugu Rama devi +2 more
openaire +1 more source
Rapid Rotation of the Solar Interior
Science, 1967A model proposed for the sun apparently can account for the maintenance of photospheric rotation against deceleration by the solar wind. The rotational period is about half a day near the top of the radiative mass, and 1.6 times shorter at the center.
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Solar Energy Materials and Solar Cells, 2018
Perovskite solar cells, mainly based on the prototypical CH3NH3PbI3, have recently emerged as a disruptive technology in the solar cell industry. Despite the great successes in the exceptional power conversion efficiency, many underlying mechanisms ...
Lei Zhang +4 more
semanticscholar +1 more source
Perovskite solar cells, mainly based on the prototypical CH3NH3PbI3, have recently emerged as a disruptive technology in the solar cell industry. Despite the great successes in the exceptional power conversion efficiency, many underlying mechanisms ...
Lei Zhang +4 more
semanticscholar +1 more source
Nature, 1982
In the continuing study of solar oscillation by means of optical resonant scattering1, two sets of data were obtained between June and August 1981. The first of these was at Haleakala on the island of Maui and consisted of 70 days of data over a period of 83 days, whilst at Izana on the island of Tenerife 85 days were obtained from an observing season ...
A. Claverie +5 more
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In the continuing study of solar oscillation by means of optical resonant scattering1, two sets of data were obtained between June and August 1981. The first of these was at Haleakala on the island of Maui and consisted of 70 days of data over a period of 83 days, whilst at Izana on the island of Tenerife 85 days were obtained from an observing season ...
A. Claverie +5 more
openaire +1 more source
Solar radiation and solar differential rotation
Solar Physics, 1988Areas of sunspots and their positions taken from the Greenwich Photoheliographic Results (1874–1976) and typical intensities of the umbrae and penumbrae are used to calculate daily values of the solar flux at a wavelength of about 500 nm. Using overlapping time series of 512 days each solar rotation periods are determined by Fourier transformation. The
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Journal of Renewable and Sustainable Energy
A rotary solar furnace is conceptually introduced. In contrast to a conventional solar furnace, where the concentrator is fixed, in a rotary solar furnace both the concentrator and the heliostat rotate in concentric circular path around the concentrator's focus such that at each instant of time they face each other.
M. Ebrahim Foulaadvand +1 more
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A rotary solar furnace is conceptually introduced. In contrast to a conventional solar furnace, where the concentrator is fixed, in a rotary solar furnace both the concentrator and the heliostat rotate in concentric circular path around the concentrator's focus such that at each instant of time they face each other.
M. Ebrahim Foulaadvand +1 more
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