Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Alexander Shapoval"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Abstract A cellular automaton constructed by Bak, Tang, and Wiesenfeld (BTW) in 1987 to explain the 1/f noise was recognized by the community for the theoretical foundations of self-organized criticality (SOC). Their conceptual work gave rise to vari
Externí odkaz:
https://doaj.org/article/134d00dbcf304f4597d94b45e85280c3
Autor:
Alexander Shapoval, Mikhail Shnirman
Publikováno v:
Universe, Vol 9, Iss 6, p 271 (2023)
The purpose of this paper is to design tools that quantify the structure of the nonsymmetrical component of the solar magnetic field. With the Fourier transform and the machine learning identification of recurrent objects, we define the 27-day compon
Externí odkaz:
https://doaj.org/article/304e96cb9f114d0a9de69da4373cd763
Autor:
Alexander Shapoval
Publikováno v:
Universe, Vol 8, Iss 3, p 180 (2022)
We identify large sunspot nestlets (SN) mostly containing recurrent sunspot groups and investigate the indices of solar activity defined as the 11- or 22-year moving average of the daily areas of the SN. These nestlets, 667 in total, are constructed
Externí odkaz:
https://doaj.org/article/b60cf5fa21ea44c9a132302990855765
Publikováno v:
Entropy, Vol 22, Iss 9, p 945 (2020)
We establish the similarity in two model-based reconstructions of the coupling between the polar magnetic fields of the Sun represented by the solar faculae time series. The reconstructions are inferred from the pair of the coupled oscillators modell
Externí odkaz:
https://doaj.org/article/58138c9eae7b4ea4acba47590577ccd0
Autor:
Shnirman, Alexander Shapoval, Mikhail
Publikováno v:
Universe; Volume 9; Issue 6; Pages: 271
The purpose of this paper is to design tools that quantify the structure of the nonsymmetrical component of the solar magnetic field. With the Fourier transform and the machine learning identification of recurrent objects, we define the 27-day compon
Publikováno v:
FME Transactions. 50:674-682
The work aims to develop and research a stamp with a differentiated clamp of a rolled stock for cutting by shear. A new stamp design with a differentiated clamp of the rolled stock has been developed. In terms of their technical and economic indicato
Publikováno v:
Defect and Diffusion Forum. 410:155-160
The possibility of obtaining multilayer cylindrical waveguides by explosion welding is investigated. The fact that the technological welding scheme has a significant impact on the shaping of workpieces and the value of edge effects was established. T
Publikováno v:
Chaos (Woodbury, N.Y.). 32(8)
Substantiated explanations of the unpredictability regarding sandpile models of self-organized criticality (SOC) gave way to efficient forecasts of extremes in a few models. The appearance of extremes requires a preparation phase that ends with gener
Autor:
Sergii Shlyk, Volodymyr Drahobetskyi, Alexander Shapoval, Dmytro Savielov, Elena Naumova, Denys Bondar
Publikováno v:
Technology Audit and Production Reserves, Vol 4, Iss 1(60), Pp 31-36 (2021)
The object of research is the technology of metal processing by high-speed and high-energy methods, plastic deformation of layered metal compositions. Theoretical studies are based on the main provisions of the theory of joining metals in the solid p
Autor:
O. E. Markov, O. A. Khrebtova, V. V. Dragobetsky, Alexander Shapoval, Sergey Gorbatyuk, Denis Mospan
Publikováno v:
Metallurgist. 65:412-422
A direct electric resistance heating has been shown to be a preferable method capable of directly achieving the specified properties of the wire during annealing, as well as enabling an improved controllability of the annealing process by utilizing p