Zobrazeno 1 - 10
of 204
pro vyhledávání: '"T. A. Pivovarova"'
Publikováno v:
Physics of the Solid State. 62:2412-2421
Solid solutions Gd2(1 – x)TbxEuxO3 (where x = 1 and 2.5 mol %) are prepared by the sol–gel method with subsequent annealing at 700–1200°C in air and hydrogen atmospheres. It is found by XRD and IR spectroscopy that the solutions undergo the ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106cf2edea8cb6b248e017f9e4c422c0
https://doi.org/10.1134/s1063783420120057
https://doi.org/10.1134/s1063783420120057
Autor:
I. V. Korol’kov, S. I. Kozhemyachenko, Olga V. Antonova, T. D. Pivovarova, I. P. Dolgovesova, V. V. Bakovets
Publikováno v:
Russian Journal of General Chemistry. 88:992-999
Sol-gel synthesis of the (GdxY1–x)2O3: Eu3+ solid solutions (3.5 mol %) allows for the increase in the energy efficiency of emission of the red luminophor. The study of distribution of the luminescence activator Eu3+ has revealed that these ions su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a06dbadbebbe2c01ef707aee9a3c2f36
https://doi.org/10.1134/s1070363218050262
https://doi.org/10.1134/s1070363218050262
Publikováno v:
Solid State Phenomena. 262:48-52
Microbial population performing biooxidation of flotation concentrate of gold bearing sulfide ore containing pyrite, arsenopyrite, and pyrrhotite was studied using cultural and molecular biological (metagenomics sequencing of V3-V4 fragments of 16S r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc40f09a6052ee051681600b1f920c51
https://doi.org/10.4028/www.scientific.net/ssp.262.48
https://doi.org/10.4028/www.scientific.net/ssp.262.48
Publikováno v:
Russian Journal of General Chemistry. 86:224-230
Evolution of the mother liquor pH in the course of the sol-gel precipitation of hydrogels of yttrium and europium oxohydroxides has been studied at different acidity of the system and the precipitant (NaOH) concentration. The optimal pH and component
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38e8b154098943f3dbe29ba265894d57
https://doi.org/10.1134/s1070363216020043
https://doi.org/10.1134/s1070363216020043
Autor:
P. V. Moshchanetskiy, A. V. Belyi, A. G. Bulaev, T. A. Pivovarova, V. S. Melamud, Tamara F. Kondrat'eva
Publikováno v:
Microbiology. 83:558-567
Optimal aeration conditions were determined and the effect of yeast extract on biooxidation of high-pyrrhotite sulfide ore flotation concentrate in the course of continuous cultivation of an acidophilic chemolithotrophic microbial community was studi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dd8d97d307e3219a21649d720ddde50
https://doi.org/10.1134/s0026261714050191
https://doi.org/10.1134/s0026261714050191
Publikováno v:
Microbiology. 83:255-261
Oxidation of flotation concentrate of a pyrrhotite-rich sulfide ore by acidophilic chemolithoautotrophic microbial communities at 35, 40, and 45°C was investigated. According to the physicochemical parameters of the liquid phase of the pulp, as well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0aff83ba7901f95c703026f15a357d6b
https://doi.org/10.1134/s0026261714030138
https://doi.org/10.1134/s0026261714030138
Autor:
I. V. Korol’kov, Olga V. Antonova, T. D. Pivovarova, M.I. Rakhmanova, S. V. Belaya, I. P. Dolgovesova, V. V. Bakovets
Publikováno v:
Journal of Luminescence. 215:116633
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf2a64e6926ef8a7515092aa486ebb3e
https://doi.org/10.1016/j.jlumin.2019.116633
https://doi.org/10.1016/j.jlumin.2019.116633
Autor:
L. N. Trushnikova, Pavel E. Plyusnin, S. A. Savintseva, Ilya V. Korolkov, T. D. Pivovarova, V. V. Bakovets, I. P. Dolgovesova
Publikováno v:
Russian Journal of General Chemistry. 83:1808-1814
The process of dehydration of Gd(OH)3·nH2O obtained by the sol-gel method from a solution of Gd(NO3)3, to Gd2O3 in the temperature range of 50–700°C was explored. The hydrogel and Gd2O3 structurization is shown to depend on the additives (AF-12 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e27d900e1f3b9fd69ab3e67f113f777b
https://doi.org/10.1134/s1070363213100034
https://doi.org/10.1134/s1070363213100034
Publikováno v:
Advanced Materials Research. 825:301-304
Mining and metallurgical treatments of sulphide ores are characterised by present significant losses of non-ferrous and precious metals as different types of waste. These elements are accumulated in heaps due to the lack of efficient technology for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::072e574a1c3375c5267b25f10bcbe075
https://doi.org/10.4028/www.scientific.net/amr.825.301
https://doi.org/10.4028/www.scientific.net/amr.825.301
Autor:
T. A. Pivovarova, V. S. Melamud, N. V. Grigor’eva, Iraida A. Tsaplina, A. G. Bulaev, A. E. Zhuravleva, P. V. Moshchanetskii, A. V. Belyi, Tamara F. Kondrat'eva
Publikováno v:
Applied Biochemistry and Microbiology. 49:495-501
A community of acidochemolithotrophic microorganisms with a high oxidation rate of pyrrhotite-containing sulphide ore flotation concentrate was selected. The Acidithiobacillus caldus OP-1 and Ferroplasma acidiphilum OP-2 cultures were identified to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b93cfd7b535b738cd793c091ad96cdb
https://doi.org/10.1134/s0003683813050050
https://doi.org/10.1134/s0003683813050050