Zobrazeno 1 - 10
of 6 955
pro vyhledávání: '"Kyiv (Ukraine)"'
Autor:
D.V. Pekur, Yu.E. Nikolaenko, V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 41, prosp. Nauky, 03680 Kyiv, Ukraine
Publikováno v:
Semiconductor Physics, Quantum Electronics & Optoelectronics, Vol 23, Iss 01, Pp 91-101 (2020)
Using the method of computer modelling, considered in this paper is optimization of a passive air system design for cooling the powerful LED luminaire based on heat pipes and cooling rings. Thermal and mass characteristics of the cooling system have
Externí odkaz:
https://doaj.org/article/aba81cc7e9484096b4e6b341ddf895e4
Autor:
V. Yu. Denisov, T. O. Margitych, Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Publikováno v:
Âderna Fìzika ta Energetika, Vol 18, Iss 2, Pp 136-145 (2017)
The influence for various parameterizations of the nuclear part of the interaction potential to the mass yields of fission fragments of highly excited nuclei for the reaction α+197Au → fission was studied. It is shown that using of various nuclear
Externí odkaz:
https://doaj.org/article/3464a978c8ae4054bf10f42617a77815
Autor:
V. I. Sugakov, A. A. Chernyuk, Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Publikováno v:
Âderna Fìzika ta Energetika, Vol 18, Iss 1, Pp 43-47 (2017)
Spatial distribution of implanted atoms and point defects created by irradiation is calculated beyond the range of ions in the crystal with impurities. Diffuse movement of defects and impurities, their capture by their effluents, the processes of rec
Externí odkaz:
https://doaj.org/article/b18db48ff5b842c8a22236c796ebee97
Autor:
Oleksandr Molodid, Sergey Bogdan, Llc \\'Mapei Ukraine\\', Kyiv, Ukraine, Iryna Rudnieva, Architecture, Kyiv, Ukraine
Publikováno v:
Dorogi i mosti. 2021:84-96
Introduction. Reinforcement methods, which are mainly used in domestic practice to strengthen metal structures, based on adding an additional section to metal elements by bolting or welding them. These methods, of course, are reliable and effective,
Autor:
A. V. Bushma, Bulvarno-Kudriavska str., Kyiv, Ukraine, A.O. Dudnyk, B.L. Holub, Llc 'Biosens Ukraine', A, Letter , Mahnitohorska str., Kyiv, Ukraine, O.V. Hudz, A.D. Karpiuk
Publikováno v:
Semiconductor Physics, Quantum Electronics and Optoelectronics. 24:227-233
The methods of detection of mycotoxins in agricultural products have been analyzed. The advantages of using the fluorescence methods for the express diagnostics of the presence of mycotoxins in samples have been shown. The development of an optical b
Autor:
Yu. V. Khomutinin, V. O. Kashparov, Ukrainian Institute of Agricultural Radiology of NUBiP of Ukraine, Kyiv, Ukraine
Publikováno v:
Âderna Fìzika ta Energetika, Vol 17, Iss 2, Pp 189-198 (2016)
Problem of optimization of sampling procedure for evaluating the median of specific activity and accumulation coefficients of the 137Cs and 90Sr for the populations of different species of fish lived in the pond was observed. Estimates of the geometr
Externí odkaz:
https://doaj.org/article/4e45382f33d1447daf5990c80cf3a4c2
Autor:
V. V. Davydovskyy, A. D. Foursat, Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Publikováno v:
Âderna Fìzika ta Energetika, Vol 17, Iss 2, Pp 111-121 (2016)
In the diffraction approximation generalized to the case of inelastic processes with longitudinal momentum transfer, the reaction of the deuteron break-up on nuclei at medium energies is studied, taking into account the Coulomb and nuclear interactio
Externí odkaz:
https://doaj.org/article/2682525843354f8787809fe0c0ae924a
Autor:
Economics, Kyiv, Ukraine, Industry, Kyiv, Ukraine, Ukraine Severodonetsk, I.V. Zablodska, V.O. Kozhevnikova, S.M. Chernovska
Publikováno v:
Economics and Law. :10-19
The article analyses the grounds for revision of the terms of a contract in connection with a significant change of circumstances, as a way to protect civil rights and interests, the need for which may be associated with a certain extraordinary circu
Autor:
O.V. Kovalchuk, Design, Nemirovich-Danchenko str., Kyiv, Ukraine, Ihor Studenyak, E.A. Ayryan, Milan Timko, T.M. Kovalchuk, Peter Kopčanský, K. Paulovičová
Publikováno v:
Semiconductor Physics, Quantum Electronics and Optoelectronics. 24:413-418
At the temperature 293 K, the influence of two types of nanoimpurities (carbon multiwall nanotubes and C60 fullerene) both separately and together on the dielectric properties of Shell oil transformer oil has been studied. It has been shown that thes
Autor:
Volodymyr K. Fedorchenko, Applied Preparation, Kyiv, Ukraine, Hospitality, Kyiv, Ukraine, Hotel, Ludmyla V. Hrybova, Ludmyla Yu. Krasavtceva, Oleg V. Parubets, Oleksandr A. Kruchek, Restaurant Business, Kyiv, Ukraine
Publikováno v:
Geo Journal of Tourism and Geosites, Vol 23, Iss 4, Pp 1229-1237 (2020)
Tourism systems can be defined as a component of a geographic information system or a regional economic development system. The article aims to study the tourist system as an element of the integration mechanism between states. To solve a wide range