Zobrazeno 1 - 10
of 22
pro vyhledávání: '"S. A. Shtin"'
Publikováno v:
Атеротромбоз, Vol 12, Iss 1, Pp 60-68 (2022)
The paper presents the experience of treating a patient with acute coronary syndrome without ST segment elevation and underlying severe novel coronavirus infection (COVID-19) complicated by polysegmental viral pneumonia and significant respiratory ev
Externí odkaz:
https://doaj.org/article/1a18f6ff635d4962a6685fb6ad430d3b
Autor:
N. V. Rutkovskaya, Y. N. Lazarenko, S. R. Shtin, A. S. Samoylov, A. V. Sotnikov, E. A. Praskurnichy, O. V. Parinov, Y. D. Udalov
Publikováno v:
Неотложная медицинская помощь, Vol 9, Iss 1, Pp 148-158 (2020)
RELEVANCE. The increasing availability of invasive methods for assessing the coronary vessels contributes to the growth in the diagnosis of myocardial damage in intact coronary arteries. One of the least studied diseases that mimic the course of myoc
Externí odkaz:
https://doaj.org/article/85eb470473384c20a6ab5d5b8c807fa3
Publikováno v:
Industrial laboratory. Diagnostics of materials. 88:5-14
The influence of the mineral composition of water on the results of silicon determination by high-resolution atomic absorption spectrometry with a continuous spectrum source (HR-CS-ETAAS) and electrothermal atomization technique using a contrAA 700 s
Autor:
T. N. Shtin, V. B. Gurvich, O. E. Galasheva, I. G. Shelomentsev, L. K. Neudachina, S. A. Shtin
Publikováno v:
Industrial laboratory. Diagnostics of materials. 88:14-24
A method for the determination of polyorganosiloxanes (by silicon) in water using high-resolution electrothermal atomic absorption spectrometry with a continuous spectrum source and preliminary extraction of polyorganosiloxanes by benzene from the an
Publikováno v:
Industrial laboratory. Diagnostics of materials. 87:11-19
A technique for the determination of dissolved forms of silicon in water using high-resolution continuum-source electrothermal atomic absorption spectrometry (HR-CS-ETAAS) is proposed. The quantitative determination of the dissolved forms of silicon
Autor:
I. A. Shevyakova, S. A. Shtin, N. N. Zabolotskikh, A. L. Podkorytov, A. L. Timofeev, V. O. Mal’tseva
Publikováno v:
Inorganic Materials. 54:672-675
In this paper, we report the solid-state synthesis, characterization, and physicochemical properties of Pb4–xMxNb2O9 (M = Cu, Ni; x = 0–1.0) solid solutions. We have identified the stability limits of the solid solutions. Using the tolerance fact
Autor:
V. O. Mal’tseva, S. A. Shtin, S. N. Marshenya, A. D. Bamburov, A. L. Podkorytov, A. L. Timofeev
Publikováno v:
Inorganic Materials. 53:869-873
In this paper, we report the solid-state synthesis, characterization, and physicochemical properties of Ni4–x Zn x Nb2O9 (x = 0, 0.1, 0.3, 0.5, 0.75, 1.0) zinc-containing nickel niobates and Ni4Nb2–x Ta x O9 (x = 0.1, 0.3, 0.5, 1.0, 2.0) solid so
Publikováno v:
Inorganic Materials. 51:816-819
This paper reports the solid-state synthesis, characterization, and physicochemical properties of zirconium-containing Ni4Nb2O9-based nickel niobates with the general formula Ni4 − xZrx/2Nb2O9 (x = 0.05, 0.1, 0.15, 0.2). The materials have been ide
Autor:
S. V. Shtin, A. A. Lykasov
Publikováno v:
Russian Journal of Non-Ferrous Metals. 54:429-432
Equilibrium conditions of the wustite and spinel solutions in the Fe-Ge-O system in temperature range T = 1100–1300 K are investigated by measuring the emf of the galvanic element with solid electrolyte (the emf method). X-ray diffractometry and el
Publikováno v:
Inorganic Materials. 49:1044-1047
Gallium- and titanium-containing niobates with the compositions Ni4 − xGa2/3xNb2O9 and Ni4 − xTix/2Nb2O9 have been synthesized and their physicochemical properties have been studied. Their unitcell parameters have been determined by X-ray diffrac