Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Galina Petkova"'
Autor:
Maya Benkova, Lyuba NENOVA, Tsetska SIMEONOVA, Galina PETKOVA, Angelina MIKOVA, Irena ATANASSOVA
Publikováno v:
Journal of Central European Agriculture, Vol 23, Iss 2, Pp 413-422 (2022)
A three-year field experiment with maize was carried out on fluvisol. The aim of the present study was to evaluate the impact of biochar on maize yield at different levels of water stress and its effect on the amount of soil microorganisms. The follo
Externí odkaz:
https://doaj.org/article/9a31249b3ca94125a64b3334aa132819
Publikováno v:
Bulgarian Journal of Soil Science, Vol 5, Iss 1, Pp 3-10 (2020)
Data on microbiology of water repellent (hydrophobic) soils in Bulgaria are scarce. This work aimed to find out relations between microbiological indicators, hydrophobicity level and other soil properties in a Spolic Technosol. Samples from 0-10 cm
Externí odkaz:
https://doaj.org/article/e0f359dc15da43deba74f7fedf7c662e
Autor:
Ira Stancheva, Kostadinka Nedyalkova, Maria Geneva, Radka Donkova, Marieta Hristozkova, Ionita Perfanova, Mariana Sichanova, Galina Petkova, Efrosina Djonova, Hristo Valchovski
Publikováno v:
Bulgarian Journal of Soil Science, Vol 1, Iss 2, Pp 112-121 (2016)
The study was performed to evaluate the nutritional value and antioxidant properties of cowpea grain, where plants were grown under conditions of tripartite symbiosis (cowpea plants, nitrogen-fixing bacteria (Bradyrhizobium japonicum) and arbuscular
Externí odkaz:
https://doaj.org/article/848082db8b8c4dfc857c8af6efc0212d
Publikováno v:
Bulgarian Journal of Soil Science, Vol 1, Iss 1, Pp 64-77 (2016)
The effect of inoculation with “Mycosym TRI-TON” biofertilizer applied singly or in combination with symbiotic and non-symbiotic N-fixing bacteria on the plant biomass, N and P content of some pasture grasses and soil and roots acid phopsphatase
Externí odkaz:
https://doaj.org/article/73aeb1ff3ac14afe8e26797502fb1013
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 7, Iss 1 - 2, Pp 44-47 (2008)
The paper presents the optimization of the transmitted signal form according to a number of quality energy criteria. It is the transmission efficiency that has been assessed for signals harmonized with the channel of connection in comparison to the c
Externí odkaz:
https://doaj.org/article/136ba391232f41bcb1a0c9c63b020ff6
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 7, Iss 3, Pp 437-439 (2008)
The deviations of the circuit characteristics from their nominal values are random quantities and appear as a result of different destabilizing factors. With designing frequency selective circuits, two mutually connected problems are solved. The one
Externí odkaz:
https://doaj.org/article/e5fecb2ef7ec4a5a837f24487524b70c
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 3, Iss 2, Pp 103-104 (2004)
To provide the stock electromagnetics compatibility is a serious problem with the contemporary development of the railway transport and implementation of lines for connection. The AS contact system is on of the main equipment of the electrify railway
Externí odkaz:
https://doaj.org/article/b1c1834c179243198b5c71b4fc6ff9db
Autor:
Galina Petkova
Publikováno v:
Philological Class. 27:194-199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c827efafc6e96fce3740a5220a50d619
https://doi.org/10.51762/1fk-2022-27-03-17
https://doi.org/10.51762/1fk-2022-27-03-17
Autor:
Gergana Petkova, Galina Petkova
Publikováno v:
Philological Class. 26:85-95
В данной статье автор пытается реконструировать творческую историю и вероятную концептуальную рамку готовившегося к изданию в Софии в
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3131ed6242ea30b874b4775a785be41e
https://doi.org/10.51762/1fk-2021-26-04-07
https://doi.org/10.51762/1fk-2021-26-04-07
Autor:
Galina Petkova
Publikováno v:
Филологический класс, Iss 2, Pp 33-47 (2020)
The present publication acquaints the reader with the hitherto unknown correspondence in 1931 and 1951 between the Nobel Laureate Ivan Bunin and the Bulgarian literary critic Malcho Nikolov (1883–1962). The letters were found in the private collect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::beeb9b706852792a7ef7f8ff563e3b9f
https://filclass.ru/en/archive/2020/vol-25-2/znayu-chto-o-vas-nuzhno-pisat-sderzhanno-i-prosto-neizvestnaya-perepiska-ivana-bunina-i-bolgarskogo-literaturnogo-kritika-malcho-nikolova
https://filclass.ru/en/archive/2020/vol-25-2/znayu-chto-o-vas-nuzhno-pisat-sderzhanno-i-prosto-neizvestnaya-perepiska-ivana-bunina-i-bolgarskogo-literaturnogo-kritika-malcho-nikolova