Zobrazeno 1 - 10
of 554
pro vyhledávání: '"Ragulya A."'
Autor:
Umerova S. O., Ragulya A. V.
Publikováno v:
Applied Rheology, Vol 28, Iss 4 (2018)
The temperature has a significant influence on the character of flow of polymer suspensions filled with BaTiO3 nanoparticles, changing its viscosity and rheology. The viscous flow of suspensions at lower temperature from 5 to 25°C began at higher ac
Externí odkaz:
https://doaj.org/article/f5c158bbcc1d45b1bc53dc979c3e12d7
Autor:
Vlasova M., Kakazey M., Aguilar Márquez P.A., Juarez-Arellano E.A., Tapia Guardian R., Stetsenko V., Bykov A., Lakiza S., Ragulya A.
Publikováno v:
Science of Sintering, Vol 45, Iss 3, Pp 247-259 (2013)
The phase formation, microstructure and surface texture of laser treated ternary powder mixtures of Al2O3-TiO2-Y2O3 had been studied. Rapid high temperature heating and subsequent rapid cooling due to the directed movement of the laser beam forms
Externí odkaz:
https://doaj.org/article/18c7e1f853d04ae38303fc60da13c522
Autor:
Vlasova M., Kakazey M., Coeto Sosa B., Aguilar Marquez P.A., Rosales I., Martinez Escobar A., Stetsenko V., Bykov A., Ragulya A.
Publikováno v:
Science of Sintering, Vol 44, Iss 1, Pp 17-24 (2012)
The phase formation process in the zone of laser irradiation of 60 wt.% Al2O3-40 wt.% TiO2 and 60 wt.% Al2O3- 40 wt.% Y2O3 compacts has been investigated by the XRD, electron microscopy, and atomic force microscopy methods. In the laser irradiation z
Externí odkaz:
https://doaj.org/article/a96587bbd1ae4b479ad879557d60e62e
Autor:
Vlasova M., Ragulya A., Stetsenko V., Kakazey M., Aguilar Marquez P.A., Timofeeva I., Tomila T., Arellano Juarez E.A.
Publikováno v:
Science of Sintering, Vol 42, Iss 1, Pp 3-13 (2010)
In the work, features of the layer-by-layer selective laser synthesis (SLS) of ruby from an Al2O3-Cr2O3 mixture are considered depending on the irradiation power, the laser beam traverse speed, the height and amount of the backfill of powder layers.
Externí odkaz:
https://doaj.org/article/40bd5e41e7a842ddb674665473e29be6
Publikováno v:
Science of Sintering, Vol 40, Iss 2, Pp 147-154 (2008)
Powded CxNy coatings were deposited from acetonitrile on Ni, Si, and C surfaces at a voltage 500-2000 V by the electrochemical method. Electrolysis products were analyzed by IR spectroscopy, X-ray phase analysis and electron microscopy. According to
Externí odkaz:
https://doaj.org/article/7f115ec0a55540b2a69b88932d15d465
Autor:
Vlasova M., Aguilar Márquez P.A., Reséndiz-González M.C., Kakazey M., Stetsenko V., Tomila T., Ragulya A.
Publikováno v:
Science of Sintering, Vol 40, Iss 1, Pp 69-78 (2008)
Using electron microscopy, atomic force microscopy, X-ray microanalysis, and IR spectroscopy, it was established that, in the regime of continuous laser irradiation of silicon at P = 170 W in different gaseous atmospheres with an oxygen impurity, SiO
Externí odkaz:
https://doaj.org/article/06f9f0a933d64457af2931caca3f1003
Publikováno v:
Science of Sintering, Vol 39, Iss 3, Pp 249-258 (2007)
Features of the microstructure formation of Cr-Cu composites under impregnation followed by liquid phase sintering of reduced and electrolytic chromium powders at 1200°C in a vacuum of (2-4)×10-3Pa have been studied. The refractory component partic
Externí odkaz:
https://doaj.org/article/7b8ff3782c5b4a5290780d249eb221a0
Publikováno v:
Science of Sintering, Vol 39, Iss 3, Pp 287-294 (2007)
Powded CxNy coatings were deposited from acetonitrile on Ni, Si, and C surfaces at a voltage of 500-2000 V by the electrochemical method. Electrolysis products were analyzed by IR spectroscopy, X-ray phase analysis and electron microscopy. According
Externí odkaz:
https://doaj.org/article/429bfd65b1234b25ab85c49e43027444
Autor:
O.P. Yavorovsky, V.M. Riabovol, T.O. Zinchenko, M.M. Zahornyi, A.V. Ragulya, N.I. Tyschenko, O.Yu. Povnitsa, L.O. Artiukh, S.D. Zahorodnia, D.D. Ostapiv
Publikováno v:
Medičnì Perspektivi, Vol 29, Iss 1, Pp 180-192 (2024)
In order to address safety concerns related to the acquisition and utilization of TiO2 and TiO2@Ag nanomaterials, as well as to investigate their disinfectant and biological effects, the structural-morphological, morphometry, toxicological, cytotox
Externí odkaz:
https://doaj.org/article/b97d2e207c7c4f218bc5deb04c960fed
Publikováno v:
Ukrainian Journal of Veterinary and Agricultural Sciences, Vol 7, Iss 1, Pp 94-101 (2024)
The cardiovascular system is one of the most critical animal systems. Its main functions are to supply organs and tissues with oxygen and nutrients and to remove metabolic products from tissues. Diseases of the cardiovascular system of animals cause
Externí odkaz:
https://doaj.org/article/2609052b065d4a43b3e4fc745e599db4