Zobrazeno 1 - 10
of 10
pro vyhledávání: '"O. G. Zakharova"'
Autor:
O. G. Zakharova, A. P. Chevychelov
Publikováno v:
Бюллетень Почвенного института им. В.В. Докучаева, Vol 0, Iss 118, Pp 309-332 (2024)
For the first time, the phosphate state of permafrost forest post-pyrogenic polycyclic soils of Central and Southern Yakutia, formed respectively in arid and humid climates, was studied and evaluated. These soils with a polycyclic profile, formed in
Externí odkaz:
https://doaj.org/article/140f3c4c738d49a6a15314ae86e7bada
Autor:
O. G. Zakharova
Publikováno v:
Научный вестник МГТУ ГА, Vol 0, Iss 199, Pp 95-100 (2017)
The concepts of electronic training sold in a context of specificity of preparation of the air personnel are considered. Is shown, that the introduction of technologies of electronic training is capable to introduce innovations, not used earlier appr
Externí odkaz:
https://doaj.org/article/34c6a32346a14e59a373398c6afd31c3
Publikováno v:
Arctic and Subarctic Natural Resources. 28:104-116
The phosphate state of six types of frozen soil in Central Yakutia (forest podzolic, pale brown and pale, meadowsteppe chernozems, meadow-chernozem, and chernozem-meadow) was studied for the first time. We estimated the total phosphorus content and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cccf4d1b7eaea1c3ba5fac96b28433f
https://doi.org/10.31242/2618-9712-2023-28-1-104-116
https://doi.org/10.31242/2618-9712-2023-28-1-104-116
Autor:
A. V. Kozlov, Alexander P. Filippov, Yu. D. Semchikov, Ekaterina R. Gasilova, O. G. Zakharova
Publikováno v:
Polymer Science Series A. 51:492-501
Fractions of the product resulting from the polymerization of methyl methacrylate in the presence of hyperbranched perfluorinated poly(phenylene germane) have been studied by dynamic and static light scattering and capillary viscometry in methyl ethy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dec4811a7cc5d64998c66aaad0facfb9
https://doi.org/10.1134/s0965545x09050022
https://doi.org/10.1134/s0965545x09050022
Publikováno v:
Polymer Science Series A. 51:512-517
Polymers of various structures, namely, the model PS with pentafluorophenyl groups, the linear-dendrite perfluorinated polyphenylenegermane-polystyrene, and diblock copolymer polystyrene-Ge(C6F5)2-polystyrene, have been prepared by radical polymeriza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c86ed83acc61583bba79ee88da30589
https://doi.org/10.1134/s0965545x09050046
https://doi.org/10.1134/s0965545x09050046
Publikováno v:
Russian Journal of Applied Chemistry. 82:644-649
Amphiphilic block copolymers of N-pyrrolidone and styrene were prepared by chain transfer to organogermanium compounds bis(pentafluorophenyl)germane and tris(pentafluorophenyl)germane. The relative chain-transfer constants were determined. The surfac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d3cea22369b1fb82aec0eb371c71d8a
https://doi.org/10.1134/s107042720904020x
https://doi.org/10.1134/s107042720904020x
Publikováno v:
Thermochimica Acta. 468:61-65
In the present work, temperature dependence of heat capacity of the block copolymer based on hyperbranched perfluorinated poly(phenylenegermane) and atactic polystyrene has been measured first in the range from 6 to 350 K and between 320 and 534 K, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57db291c93cb33fe3efff2c56bb5f25a
https://doi.org/10.1016/j.tca.2007.11.011
https://doi.org/10.1016/j.tca.2007.11.011
Autor:
Alexander P. Filippov, O. G. Zakharova, S. D. Zaitsev, M. A. Koblyakova, Yu. D. Semchikov, Ekaterina R. Gasilova
Publikováno v:
Polymer Science Series A. 48:989-996
The dilute solutions of the hyperbranched perfluorinated polyphenylenegermane-PMAA block copolymer have been studied by dynamic and static light scattering and viscometry. It has been demonstrated that macromolecules of the block copolymer aggregate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b93845a75c9474191c5f7dffe3ad45c8
https://doi.org/10.1134/s0965545x0609015x
https://doi.org/10.1134/s0965545x0609015x
Publikováno v:
Russian Journal of Applied Chemistry. 79:1338-1340
A method for determining the molecular weight of hyperbranched polymers is developed, based on the measurement of the area of the monolayer at the water/air interface.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::288706a7507d77ecfdf3a164227b9895
https://doi.org/10.1134/s1070427206080246
https://doi.org/10.1134/s1070427206080246
Publikováno v:
Russian Journal of Applied Chemistry. 76:431-433
Homo- and copolymers of 1-vinyl-1,2,4-triazole with acrylamide and quarternary salt of polyvinyltriazole were prepared. The flocculation power of these (co)polymers was studied using model kaolin suspensions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46e07938aad7e9a0c906643c8df4904f
https://doi.org/10.1023/a:1025656918971
https://doi.org/10.1023/a:1025656918971