Zobrazeno 1 - 10
of 26
pro vyhledávání: '"S. S. Shevchuk"'
Publikováno v:
Литосфера, Vol 0, Iss 2, Pp 103-120 (2015)
Study results of accessory zinc-bearing chromespinelides from Middle Devonian psephites of Pizhemskaya suite (D2pg) of Ichet’yu placer-like occurrence (Middle Timan) are represented. According to electron microprobe analysis the most of chromespine
Externí odkaz:
https://doaj.org/article/9ac77b78563942bd842d066598e47890
Publikováno v:
Литосфера, Vol 0, Iss 1, Pp 75-85 (2015)
The results of study sulfide and noble metal mineralization in chrome ores of Lagortia-Kershor area, Voikar-Synya ultrabasic massif are given. Millerite, pentlandite, heazlewoodite, galena, arsenopyrite, cooper sulfides, mineral phases of osmium, rut
Externí odkaz:
https://doaj.org/article/87708aee22af4e61b238c4cf9a0f160c
Publikováno v:
Doklady Earth Sciences. 477:1363-1367
This work presents the results of studying the mineral composition of chromite ores of the Khoila area. For the first time, nickel antimonide (breithauptite), including an Au-bearing type (with intergrowths and microinclusions of auricuprides) was fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::282da63cf2363c943c1e8e5c57273e6b
https://doi.org/10.1134/s1028334x1711023x
https://doi.org/10.1134/s1028334x1711023x
Autor:
M. V. Filippova, D. A. Korolev, L. S. Feltsinger, Boris A. Makeev, A. N. Nizovtsev, A. V. Fedorova, Nadezhda A. Zhuk, N. V. Chezhina, V. P. Lutoev, S. S. Shevchuk
Publikováno v:
Russian Journal of General Chemistry. 87:2251-2257
A monoclinic distortion of tetragonal cell was found in the solid solutions with layered perovskite-like structure [Bi5Nb3–3xMn3xO15–δ (0.005 < х ≤ 0.06)]. In the ESR spectra absorption bands with g-factors ~4.3 and 2.1 assigned to Mn(II) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b04275642098933298986c30fad8aeb
https://doi.org/10.1134/s1070363217100012
https://doi.org/10.1134/s1070363217100012
Autor:
V. A. Butin, A. N. Nizovtsev, S. S. Shevchuk, N. A. Zhuk, Boris A. Makeev, N. V. Chezhina, D. A. Korolev, A. V. Fedorova, V. P. Lutoev
Publikováno v:
Russian Journal of General Chemistry. 87:899-905
Magnetic susceptibility and ESR properties of manganese-containing solid solutions of bismuth orthoniobate BiNb1–x MnxO4–δ have been studied. Mn(II), Mn(III), and Mn(IV) atoms as well as their dimers exhibiting antiferro- and ferromagnetic types
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb359c3470b43277566c42e2fb713f35
https://doi.org/10.1134/s1070363217050012
https://doi.org/10.1134/s1070363217050012
Autor:
T. G. Shumilova, S. I. Isaenko, V.A. Radaev, S. S. Shevchuk, Ye. A. Golubev, S.N. Tkachev, Joachim Mayer
Publikováno v:
Carbon. 114:724-730
A complex approach, which includes simultaneous data acquisition and processing, to analyze various physical parameters characteristics of the same sample cross-section at high resolution allows to extract information of much better quality and, thus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d9b8762a2e18c98beed130799735764
https://doi.org/10.1016/j.carbon.2016.12.032
https://doi.org/10.1016/j.carbon.2016.12.032
Autor:
A. V. Fedorova, A. N. Nizovtsev, N. V. Chezhina, V. A. Butin, D. A. Korolev, Nadezhda A. Zhuk, Boris A. Makeev, S. S. Shevchuk, V. P. Lutoev
Publikováno v:
Russian Journal of General Chemistry. 87:373-380
Magnetic susceptibility of Bi5Nb3–3x Fe3x O15–δ (х ≤ 0.06) iron-containing solid solutions with perovskite-like structure was studied. Exchange-bound aggregates of Fe(III) atoms with antiferro- and ferromagnetic exchange types are formed in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19679f434e313d6cf692fecaa3b85ea6
https://doi.org/10.1134/s1070363217030021
https://doi.org/10.1134/s1070363217030021
Autor:
Boris A. Makeev, Nadezhda A. Zhuk, D. A. Korolev, N. V. Chezhina, A. V. Fedorova, A. N. Nizovtsev, S. S. Shevchuk, V. P. Lutoev, V. A. Butin
Publikováno v:
Russian Journal of General Chemistry. 87:168-174
Magnetic susceptibility and ESR properties of iron-containing Bi2BaNb2–2xFe2xO9–δ solid solutions with layered perovskite-like structure have been studied. In the diluted solid solutions, iron atoms are combined into Fe(III) dimers and tetramers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::231c58a68619ba3896fe8a1cb9d86c33
https://doi.org/10.1134/s1070363217020037
https://doi.org/10.1134/s1070363217020037
Autor:
Nadezhda A. Zhuk, A. V. Fedorova, A. N. Nizovtsev, V. P. Lutoev, N. V. Chezhina, S. S. Shevchuk, D. A. Korolev, V. A. Butin, Boris A. Makeev
Publikováno v:
Russian Journal of General Chemistry. 86:2575-2580
From the data of magnetochemical study and ESR spectra of samples of the Bi3Nb1–xFexO7–δ (х ≤ 0.06) solid solutions iron atoms in the solid solutions of cubic modification of bismuth niobate were found to be located as Fe(III) monomers and ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e19bfefa9b8e788bdb1178e4e35a4f4e
https://doi.org/10.1134/s107036321612001x
https://doi.org/10.1134/s107036321612001x
Publikováno v:
Doklady Earth Sciences. 469:695-698
Here, the results of examination of black shale type rocks from the Urals for noble metal mineralization are presented for the first time: they have been obtained using atomic–absorption spectrometry along with data of a complex analysis of a carbo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfd3015450e80c69bc2b4c7d4e9de23c
https://doi.org/10.1134/s1028334x16070060
https://doi.org/10.1134/s1028334x16070060