Results 11 to 20 of about 11,976 (273)
SUNSPOTS AND CREDIT FRICTIONS [PDF]
Macroeconomic Dynamics, 2012 We examine a general equilibrium model with collateral constraints and increasing returns to scale in production. The utility function is nonseparable, with no income effect on the consumer's choice of leisure. Unlike this model without a collateral constraint, we find that indeterminacy of equilibria is possible.
Harrison, S., Weder, M.
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Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023 В статье проводится уточнение математической модели динамики солнечной активности методом решения обратной задачи. В качестве дополнительной информации используются экспериментальные данные по наблюдению за значениями числа Вольфа.
Твёрдый, Д.А. +1 more
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Multiple-scale Temporal Variability of Climatic Time Series in the Western Region of Iran [PDF]
Sustainable Earth Trends, 2023 The current research aims to carry out a multi-timescale variability analysis for the time series of sunspots (SN), precipitation (Pr), and maximum temperature (Tmax) in four main stations in the western area of Iran.
Abolfazl Neyestani
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PENGEMBANGAN ALAT PERAGA BINTIK MATAHARI MENGGUNAKAN LED BERBASIS ARDUINO
Spektra: Jurnal Fisika dan Aplikasinya, 2017 Abstrak Bintik matahari yang terjadi dalam kehidupan sehari-hari merupakan hal menarik untuk divisualisasikan melalui alat peraga dalam proses belajar menganjar.
Yoky Novra Silta, Yudhiakto Pramudya
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Journal of Water and Climate Change, 2023 The Haihe River basin is the main grain production base and the highland of economic strategic development in China. Based on daily meteorological data during 1960–2020, the characteristics of drought evolution in the Haihe River basin were analyzed by ...
Minhua Ling +4 more
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The transition region above sunspots
Geoscience Letters, 2018 Over decades, sunspots and their fine structures have been studied in detail at the photospheric level with different ground-based telescopes, as the surface of the Sun primarily emits light in the visible wavelengths.
Hui Tian, Tanmoy Samanta, Jingwen Zhang
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Investigation of the sunspots and GDP nexus: The case of Balkan countries [PDF]
Ekonomski Anali, 2023 The phenomenon known as sunspots refers to regions of the Sun’s photosphere that are darker than their surroundings because their surface temperature is lower.
Žmuk Berislav, Jošić Hrvoje
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Temporal variations of different solar activity indices through the solar cycles 21-23 [PDF]
Serbian Astronomical Journal, 2017 Here, we compare the sunspot counts and the number of sunspot groups (SGs) with variations of total solar irradiance (TSI), magnetic activity, Ca II K-flux, faculae and plage areas.
Gäoker Ü.D. +3 more
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Detecting the Sun’s active region using image processing techniques
Physical Sciences and Technology, 2021 The term ‘space weather’ refers to adverse conditions on the Sun that could affect the structures of space or terrestrial technology and risk human health or life. Flares produce effects that span the electromagnetic spectrum.
A. Sarsembayeva +4 more
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InsectsWhether there is a correlation between sunspots and an impact on insects has long been a subject of debate. As a worldwide pest, the cotton bollworm can feed on a variety of plants and cause great harm to agriculture.
Jian Huang, Xiaojun Wang
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