Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Karpenko B."'
Publikováno v:
Технологія виробництва і переробки продуктів тваринництва, Vol 1, Iss 178, Pp 19-28 (2023)
The researches were conducted in the aspect of studying the problem of dairy cows lifetime depending on the linear traits assessment of the conformation type. By the linear classification method were estimated firstborn cows of the Ukrainian Black-an
Externí odkaz:
https://doaj.org/article/a920c790c84f41dba8643bae3447a610
Autor:
Khmelnychyi L., Karpenko B.
Publikováno v:
Технологія виробництва і переробки продуктів тваринництва, Vol 1, Iss 170, Pp 38-49 (2022)
The research was carried out in the aspect of studying features of conformation type cows of Ukrainian Black-and-White dairy and Holstein breeds estimated by linear classification method. As for the basis we took the herd of the company "Ukrlandfarmi
Externí odkaz:
https://doaj.org/article/9bc04c1881bb42c3acb105c9856b32a9
Autor:
Karpenko B.
Publikováno v:
Технологія виробництва і переробки продуктів тваринництва, Vol 2, Iss 166, Pp 48-56 (2021)
The aim of this study was to assess the correlation variability between linear traits of the first-born cows of Ukrainian Black-and-White dairy breed. The material of the study was based on the information about the linear classification of cows in t
Externí odkaz:
https://doaj.org/article/48187b0cdd62429c8db585c1b79eb700
The density of states and chemical potential as functions of temperature and filling degree of energy band were calculated. It was shown the peculiarity of concentration and temperature behavior of chemical potential is stipulated by Fermi statistics
Externí odkaz:
http://arxiv.org/abs/1205.1652
The various thermodynamic functions dependence on degree of energy band occupation and temperature was studied. The one-band tight binding approximation for the electron energy spectrum was used. The Fermi energy, density of states, degeneracy temper
Externí odkaz:
http://arxiv.org/abs/1010.1590
The behavior of various thermodynamic functions in the dependence of degree of energy band occupation and temperature in the one-band tight binding approximation for the crystal was studied. The Fermi energy, density of states, degeneracy temperature
Externí odkaz:
http://arxiv.org/abs/1003.2283
Autor:
Karpenko, B. V., Kuznetzov, A. V.
The spin-wave spectrum in the metallic ferromagnetic lantha-num cubic manganites was investigated. The interactions with four coordination spheres (32 neighbors) were taken into ac-count. The Heisenberg superexchange between all manganese ions as wel
Externí odkaz:
http://arxiv.org/abs/0805.3006
With use of homogeneous model for magnetic sub-lattice of compound La1-x CaxMnO3 allowing for Heisenberg superexchange and double exchange between nearest neighbors the temperature dependence of spontaneous magnetization on a separate site is investi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604161
Question about the appearance of different magnetic structures in the family of compounds La1-xCaxMnO3,is investigated theoretically. It is supposed that the whole series has GdFeO3 structure type. The problem is considered at absolute zero temperatu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0509507
Publikováno v:
Russian Physics Journal. Apr2012, Vol. 54 Issue 11, p1208-1217. 10p. 7 Graphs.