Results 1 to 10 of about 4,544 (177)
Geophysical Research LettersLeveraging the unique perspective enabled by Global‐scale Observations of the Limb and Disk, we examined the characteristics of equinox transitions in the thermospheric column integrated ratio of atomic oxygen to molecular nitrogen (O/N2) in the Northern
Nicholas Pedatella +2 more
exaly +2 more sources
Astronomical Investigation to Verify the Calendar Theory of the Nasca Lines
Applied Sciences, 2021 As in many regions of the world, astronomy also played a major role in the ancient Peruvian cultures. However, the discussion of the astronomical relevance of the Nasca geoglyphs is very controversial.
Christiane Richter +2 more
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Stellar astronomy of the Bronze Age sanctuaries in North Khakassia [PDF]
Archaeoastronomy and Ancient Technologies, 2015 This publication presents the results of two studies of astroarchaeological monuments in North Khakassia confirming the existence of Siberia stellar astronomy in the Bronze age (andronovo culture, Khakassia, mid-II millennium BC).
Larichev, V.E. +2 more
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Sky on the rocks of Onega Lake according to data of the archaeoastronomy [PDF]
Archaeoastronomy and Ancient Technologies, 2016 The papers presents a study of symbolic images of disc-, crescent- and half-moon-shaped figures with one-two ray-like lines, directed to one aside. Taking into consideration the specifics of sacred place's location on the Onega Lake and peculiarities of ...
Potemkina, T.M.
doaj +1 more source
Energies, 2022 This work deals with controlling the solar radiation reception rate (SRRR) (ratio of the incident solar radiation on tilted panel to the global incident solar radiation).
Faris Alqurashi +4 more
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Determination of the satellite signals time delay caused by the ionospheric influence during the year 2022 [PDF]
Tehnika, 2023 Multi-frequency GNSS satellite signals and their availability enable research in undifferentiated and uncombined models in which a single signal at each frequency is a corresponding independent observation.
Petković Dušan S. +3 more
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Frontiers in Endocrinology, 2021 ContextThe safety and efficacy of feminizing hormone therapy in aging transgender (trans) individuals is unclear. Current recommendations suggest transdermal estradiol beyond the age of 45 years, especially if cardiometabolic risk factors are present ...
Matthew I. Balcerek +9 more
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Tarhatinsky megalytic complex: the petroglyphs, observed are astronomical phenomena and shadow of the megaliths [PDF]
Archaeoastronomy and Ancient Technologies, 2014 In this article, the results of recent studies of the Tarhatinsky megalithic complex (Gorny Altai, Kosh-Agach region) are presented. During 2010-2012, previously unpublished petroglyphic figures were copied and geodetic measurements were carried out, as ...
Matochkin, E.P., Gienko, E,G.
doaj +1 more source
Longitudinal Structure in the Altitude of the Sporadic E Observed by COSMIC in Low-Latitudes
Remote Sensing, 2021 The longitudinal structure in the altitude of the Sporadic E (Es) was investigated for the first time based on the S4 index provided by the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) in low latitudes.
Zhendi Liu +3 more
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Intriguing aspects of F-region plasma irregularities revealed by the Gadanki radar observations during the SAFAR campaign [PDF]
Annales Geophysicae, 2009 Intriguing new results of F-region irregularities observed using the Gadanki MST radar during the SAFAR campaigns, which were conducted during the equinox and summer of 2008 that corresponds to low solar activity condition, are presented.
A. K. Patra +2 more
doaj +1 more source