Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Olga M. Fedorova"'
Autor:
Anna S. Tolkacheva, Sergey N. Shkerin, Sofya A. Petrova, Olga M. Fedorova, Svetlana G. Titova, Ivan I. Leonidov
Publikováno v:
Chimica Techno Acta, Vol 9, Iss 2 (2022)
The phase formation of the solid solution Ca5Mg4–xZnx(VO4)6 (0≤x≤4) was studied in situ using differential scanning calorimetry and high-temperature X-Ray powder diffraction (XRPD). XRPD analysis shows the appearance of unavoidable secondary py
Externí odkaz:
https://doaj.org/article/371c8b3a1bc44648a93da5e33ac948f5
Publikováno v:
Process. Appl. Ceram.
Processing and Application of Ceramics
Processing and Application of Ceramics, Vol 14, Iss 3, Pp 203-209 (2020)
Processing and Application of Ceramics
Processing and Application of Ceramics, Vol 14, Iss 3, Pp 203-209 (2020)
In this work neodymium manganites, Nd1-xAxMnO3±δ, doped with Ba or Sr (where x = 0.15 and 0.25) were obtained by ceramic technology at 1250 °C. In order to obtain materials with stable thermal and electrical properties, their structure and physico
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4531139d1e4eef881be889d3f0b4ba03
https://hdl.handle.net/10995/103145
https://hdl.handle.net/10995/103145
Autor:
Olga M. Fedorova
Publikováno v:
The Journal of Pacific History. 46:381-392
Makar I. Ratmanov's Diaries and Russian Accounts of the Marquesas In 1803, the first Russian round-the-world expedition, in the ships Nadezhda (Hope) and Neva under the command of Captain-Lieutenan...
Autor:
Jürgen Mattusch, Rainer Wennrich, Valerii M. Shkinev, Olga M. Fedorova, Boris Ya. Spivakov, Maritta Lohse
Publikováno v:
Analytica Chimica Acta. 327:167-174
Specially designed multistage membrane filtration devices for the size fractionation of suspended particles and solutes were tested and used for speciation studies of metals associated with natural water components. The separated fractions were adapt
Publikováno v:
AIP Conference Proceedings.
We report X‐ray and neutron diffraction study results for HTSC cuprates Hg0.8Tl0.2Ba2CaCu2Ox, Bi2Sr2CaCu2Oy and compare them with earlier studied AF phases CuO and Y2BaCuO5 in temperature range 100 – 300 K. For both HTSC systems at concentration