Results 21 to 30 of about 6,562 (255)
Long-term Monitoring of Solar Activity by Amateur Astronomers [PDF]
International Astronomical Union Colloquium, 1988 Professional solar astronomy concentrates on the study of the atmosphere and interior of the Sun. Little attention is given to “classical” programmes, mainly statistical investigations of solar activity. Although the main properties of phenomena associated with the solar cycle seem to be understood there are still enough details to be explained, making
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Long-term analysis of clear nights using satellite data considering astronomical sites in western China [PDF]
Research in Astronomy and Astrophysics, 2020 Abstract A large ground-based optical/infrared telescope is being planned for a world-class astronomical site in China. The cloud-free night percentage is the primary meteorological consideration for evaluating candidate sites. The data from GMS and NOAA satellites and the MODIS instrument were utilized in this research, covering the ...
Zi-Huang Cao +39 more
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Automatic Classification of Spectra with IEF-SCNN
Universe, 2023 Telescopes such as the Large Sky Area Multi-Object Spectroscopic Telescope and the Sloan Digital Sky Survey have produced an extensive collection of spectra, challenging the feasibility of manual classification in terms of accuracy and efficiency.
Jingjing Wu +4 more
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Ms. Hisako Koyama: From Amateur Astronomer to Long‐Term Solar Observer [PDF]
Space Weather, 2017 AbstractThe path to science for a girl of any nationality born in the early twentieth century was formidable‐to‐nonexistent. Yet paths were forged by a few. We present the little‐known story of one of Japan's premier solar observers and her contribution to the world's understanding of sunspots and space weather cycles. Ms.
Delores Knipp +2 more
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Astronomijos ir meteorologijos jungtys Arato Reiškiniuose. The Connections Between Astronomy and Meteorology in Aratus’ Phaenomena [PDF]
Literatūra (Vilnius), 2010 The author of the article focuses on the connections between astronomy and meteorology in the Phaenomena of Aratus of Soli (fl. 276 BC). Firstly, the attention is drawn to such connections that are apparent in the structure of the poem which has two ...
Naglis Kardelis
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Astronomical observation tasks short-term scheduling using PDDS algorithm [PDF]
Astronomy and Computing, 2016 A concept of the ground-based optical astronomical observations efficiency is considered in this paper. We believe that a telescope efficiency can be increased by properly allocating observation tasks with respect to the current environment state and probability to obtain the data with required properties under the current conditions.
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Mortality during Transport of Pigs Subjected to Long Journeys: A Study in a Large European Abattoir
Veterinary Sciences, 2022 To date, especially in Europe, few studies have analysed the implications of long journeys on pig welfare and economic losses, expressed in terms of transport mortality.
Eleonora Marti +6 more
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ASTRONOMICAL TERMS IN ALISHER NAVOI'S EPIC "LAYLI AND MAJNUN"
, 2022 The epic”Layli and Majnun” which is the third epic of “Khamsa” written by Alisher Navoi, the sultan of the word, consists of 3623 verses, in the text of this epic, Navoi used terms related to various sciences and professions of his time. In particular, terms related to the socio-political, military, economic, animal and plant world, related to the ...
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Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
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تحديد مطلع الهلال بالحساب الفلكي دراسة فقهية Determining The Beginning Of The Crescent By Astronomical Calculation – Jurisprudential Study [PDF]
مجلة البحوث الفقهیة والقانونیةهذا البحث يتناول - تحديد مطلع الهلال بالحساب الفلكي - وهذه المسألة تعد مِن المسائل الفقهية التي استجد عليها وحدث فيها من تطورات العصر ما قد يؤثر على حكمها السابق، فقد كان علم الفلك قديماً يتبناه المنجمين، ويكان مبناه على الحدس والتخمين، وأما لآن وبفضل ...
عميش الاسمري
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