Dynamics and Spatial Shape of Short-Period Meteoroid Streams
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AbstractAt the early stage of evolution the meteoroid streams may be considered as elliptical rings of relatively small thickness. The influence of planetary perturbations can essentially increase the stream width and its thickness. As a result one stream may produce several couples of meteor showers active in different seasons of the year. 22 short-period meteoroid streams under review may theoretically produce 104 meteor showers. The existence of 67 is confirmed by observations.
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Keyword(s):
Magnesium metabolism in the dairy cow IV. The availability of the magnesium in various feedingstuffs
1962 ◽
Vol 59
(2)
◽
pp. 225-232
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Keyword(s):
Keyword(s):
2021 ◽