Zobrazeno 1 - 10
of 2 087
pro vyhledávání: '"A. A. Kostikov"'
Let $\mathbb{R}^{+}=[0, \infty)$ and let $d^+$ be the ultrametric on $\mathbb{R}^+$ such that $d^+ (x,y) = \max\{x,y\}$ for all different $x,y \in \mathbb{R}^+$. It is shown that the monomorphisms of the groupoid $(\mathbb{R}^+, d^+)$ coincide with t
Externí odkaz:
http://arxiv.org/abs/2407.00508
It is shown that a locally finite ultrametric space $(X, d)$ is generated by labeled tree if and only if, for every open ball $B \subseteq X$, there is a point $c \in B$ such that $d(x, c) = \operatorname{diam} B$ whenever $x \in B$ and $x \neq c$. F
Externí odkaz:
http://arxiv.org/abs/2308.06626
Autor:
Andrii O. Kostikov, Oleksandr L. Shubenko, Viktoriia O. Tarasova, Viktor A. Yakovliev, Andrii O. Mazur
Publikováno v:
Journal of Mechanical Engineering, Vol 26, Iss 4, Pp 6-16 (2023)
The approach to solving the applied problem of modernization of the 300 MW series power units produced by JSC "Ukrainian Energy Machines" by converting them from supercritical to ultra-supercritical steam parameters, provided that regenerative feed w
Externí odkaz:
https://doaj.org/article/952fb3439e0341389cfdd0519573667c
Autor:
Alexander Thiel, Alexey Kostikov, Hailey Ahn, Youstina Daoud, Jean-Paul Soucy, Stephan Blinder, Carolin Jaworski, Carmen Wängler, Björn Wängler, Freimut Juengling, Shirin A. Enger, Ralf Schirrmacher
Publikováno v:
EJNMMI Radiopharmacy and Chemistry, Vol 8, Iss 1, Pp 1-9 (2023)
Abstract Background Reduced expression or impaired signalling of tropomyosin receptor kinases (Trk receptors) are found in a vast spectrum of CNS disorders. [18F]TRACK is the first PET radioligand for TrkB/C with proven in vivo brain penetration and
Externí odkaz:
https://doaj.org/article/c2a2926d0215420eb0000e3e6b42c40c
Autor:
Andrii V. Rusanov, Valerii S. Fedoreiko, Dariusz Kardaś, Andrii O. Kostikov, Viktoriia O. Tarasova, Roman A. Rusanov, Maryna O. Chuhai, Mykhailo I. Sukhanov, Serhii P. Tretiak
Publikováno v:
Journal of Mechanical Engineering, Vol 26, Iss 3, Pp 6-14 (2023)
The thermal scheme of a power generating plant with a remote heat exchanger operating according to the Brayton cycle with energy recuperation is considered. It is assumed that the plant will work on non-certified (cheap) biofuel. It is shown that, in
Externí odkaz:
https://doaj.org/article/737765c7bceb4b94a35ce10da4a637a2
Publikováno v:
In Optical Materials December 2023 146
Publikováno v:
In Materials Chemistry and Physics 1 September 2023 305
Publikováno v:
Crystals, Vol 14, Iss 2, p 126 (2024)
A problem of efficacy of crystal growth methods for crystallization from solutions or melt has been investigated. The axial vibrational control (AVC) technique was considered as a perspective method to manage both heat-mass transfer and chemical comp
Externí odkaz:
https://doaj.org/article/3a22588b6c3d41c29179667dca116829
Autor:
Oleg Nefedov, Alexey Dovnarovich, Vladimir Kostikov, Elena Mozhevitina, Dmitry Bocharnikov, Igor Avetissov
Publikováno v:
Crystals, Vol 14, Iss 1, p 72 (2024)
The problem of intensification of the melt crystal growth process has been analyzed using CdTe as an actual material. Numerical simulation of 100 mm diameter CdTe crystal growth using the VGF technique has been carried out. The heat–mass transfer w
Externí odkaz:
https://doaj.org/article/945edeab59c74f959a30c2d79c2e5b71
Publikováno v:
Journal of Mechanical Engineering, Vol 25, Iss 3, Pp 40-45 (2022)
The paper considers the problem of adjusting the power of a nuclear power plant power unit reactor for those cases when equipment failure occurs. In such circumstances, sometimes it is sufficient to reduce the reactor power, while maintaining the pro
Externí odkaz:
https://doaj.org/article/1bd0ec520cc34bb8adc902eaccfc7393