Zobrazeno 1 - 10
of 16
pro vyhledávání: '"M. V. Kaverin"'
Publikováno v:
Russian chemical bulletin = Izvestiia Akademii nauk. Seriia khimicheskaia. 71(10)
We optimized the process of extraction and purification of betulin from birch bark and modified preparative syntheses of the simplest derivatives of betulin, namely, betulonic acid, betulonic aldehyde, and 3-aminobetulinic acid, as a platform for sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f20595f6c42b5af97a3ee03c07318c50
https://pubmed.ncbi.nlm.nih.gov/36405524
https://pubmed.ncbi.nlm.nih.gov/36405524
Publikováno v:
Russian Chemical Bulletin. 68:1787-1790
Cobaltocenium acetylsalicylate was synthesized and characterized for the first time. The concentration dependences observed in its interaction with the double helix of DNA have been studied by circular dichroism. In these spectra, changes in the posi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73f3fc157d9ffe6175e42191a8963522
https://doi.org/10.1007/s11172-019-2625-x
https://doi.org/10.1007/s11172-019-2625-x
Publikováno v:
Technical Physics. 59:85-92
A new approach to preparing superhard nanostructural Ti-Hf-Si-N coatings with high physicomechanical performance is developed and tested. Samples with Ti-Hf-Si-N nanocoatings obtained under different deposition conditions were investigated using nucl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f0c34908dd89e67d29d144467eb42cc
https://doi.org/10.1134/s1063784214010149
https://doi.org/10.1134/s1063784214010149
Publikováno v:
Russian Physics Journal. 56:532-541
(Ti–Zr–Hf–V–Nb)N multicomponent nanostructured coatings with thickness of 1.0–1.4 μm synthesized by the method of cathode arc-vapor deposition at temperatures of 250–300°С are investigated by various mutually complementary methods of e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8d964d846034b9e4c8cc4229fe2692f
https://doi.org/10.1007/s11182-013-0065-x
https://doi.org/10.1007/s11182-013-0065-x
Autor:
M. V. Kaverin, V. M. Beresnev, M. A. Bilokur, A. D. Pogrebnyak, K. Oyoshi, Y. Takeda, Reinhard Krause-Rehberg, V. N. Borisyuk, Alexander G. Ponomarev, Oleg Sobol
Publikováno v:
The Physics of Metals and Metallography. 114:672-680
Multicomponent nanostructured (Ti-Zr-Hf-V-Nb)N coatings produced by the cathodic-arc-vapor-deposition method have been studied using several complementary methods of elemental and structural analysis, such as those based on the use of slow positron b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c8c8f1160f3b5c874adf4e8e821849b
https://doi.org/10.1134/s0031918x13080061
https://doi.org/10.1134/s0031918x13080061
Autor:
Keiji Oyoshi, A. P. Shypylenko, A. D. Pogrebnyak, M. V. Kaverin, Alexander G. Ponomarev, Reinhard Krause-Rehberg, V. M. Beresnev, Yoshihiko Takeda, D. A. Kolesnikov
Publikováno v:
Technical Physics Letters. 39:280-283
Superhard nanostructured multielement coatings based on (Ti-Hf-Zr-V-Nb)N composition have been studied before and after thermal annealing at 600°C. It has been established that capture of positrons on defects takes place at the boundaries of nanogra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::549fce2a260225dd9634473ad0f97154
https://doi.org/10.1134/s1063785013030231
https://doi.org/10.1134/s1063785013030231
Autor:
V. S. Baidak, N. A. Makhmudov, D. A. Kolesnikov, M. V. Kaverin, V. M. Beresnev, A. A. Demianenko, Alexander D. Pogrebnjak, F. F. Komarov
Publikováno v:
Physics of the Solid State. 54:1882-1890
New superhard coatings based on Ti-Hf-Si-N with good physical and mechanical properties have been fabricated. A comparative analysis of the physical, mechanical, and tribomechanical characteristics of the coatings has been performed. The values of ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ee1c9abc1bb3ff7d73b499d7e767f0
https://doi.org/10.1134/s1063783412090247
https://doi.org/10.1134/s1063783412090247
Autor:
F. F. Komarov, V. M. Beresnev, M. V. Kaverin, Alexander G. Ponomarev, A. D. Pogrebnyak, D. A. Kolesnikov, S. S. Mel’nik
Publikováno v:
Technical Physics Letters. 38:623-626
Superhard nanostructured Ti-Hf-N(Fe) coatings are prepared. The formation of local regions of (Ti, Hf)N, FeN, and Hf is detected using μ-PIXE (ion microbeam). It is revealed that the synthesized coatings have a nanohardness of 48 ± 1 GPa and are co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b44cf2afdb58d860e29cc19d0fb90760
https://doi.org/10.1134/s1063785012070103
https://doi.org/10.1134/s1063785012070103
Autor:
F. F. Komarov, Akhmed M. Makhmud, G. V. Kirik, M. V. Kaverin, M. Yu. Smolyakova, U. S. Nemchenko, V. V. Grudnitskii, D. A. Kolesnikov, V. M. Beresnev
Publikováno v:
Journal of Friction and Wear. 33:167-173
The mechanical and triboengineering characteristics of nanocomposite Ti-Zr-Si-N and Ti-Si-N coatings are studied and the force of adhesion of the coatings is determined. It is shown that the Zr-Ti-Si-N coatings possess stronger wear resistance and lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bda26956413c8e51cb5df0ac7ab2ab11
https://doi.org/10.3103/s1068366612030026
https://doi.org/10.3103/s1068366612030026
Autor:
Oleg Sobol, Vladimir V. Uglov, G. V. Kirik, V. V. Grudnitskii, F. F. Komarov, V. M. Beresnev, N. A. Makhmudov, M. V. Kaverin, A. P. Shpak, A. D. Pogrebnyak, D. A. Kolesnikov, P. Konarskii
Publikováno v:
Russian Physics Journal. 54:1218-1225
Superhard nanostructured Ti–Hf–Si–N coatings (films) possessing high physical and mechanical properties have been produced. Nuclear and atomic physical analyses, such as RBS, SIMS, GDMS, SEM-EDXS, XRD, and nanoindentation were used to investiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2151cf5f6e9eac26d7caa4a392399e69
https://doi.org/10.1007/s11182-012-9734-4
https://doi.org/10.1007/s11182-012-9734-4