Zobrazeno 1 - 10
of 34
pro vyhledávání: '"N. P. Ovchinnikov"'
Publikováno v:
Записки Горного института, Vol 241, Pp 53-53 (2020)
The northern part of the territory of the Republic of Sakha (Yakutia) is rich in vast deposits of diamonds. These deposits are developed by the mining company “Almazy Anabara”, which is engaged in the extraction of diamonds at seasonal processing
Externí odkaz:
https://doaj.org/article/efb5cb4772484c089469404471e4f56a
Autor:
N. P. Ovchinnikov
Publikováno v:
Записки Горного института, Vol 235, Pp 65-65 (2019)
When mining diamond-bearing raw materials and further extracting diamonds from it in the joint-stock company ALROSA, which is a city-forming enterprise in the north-east of the Russian Federation, various pumping equipment is used, in particular, cen
Externí odkaz:
https://doaj.org/article/f33ff6098caa483daceaa30a91561667
Autor:
N. P. Ovchinnikov
Publikováno v:
Записки Горного института, Vol 231, Pp 317-317 (2018)
High contamination of mine water leads to intensive siltation of water catchments of district water drainage installations of kimberlite mines in Russia, because of which their pumping equipment periodically works in non-stationary regimes. At presen
Externí odkaz:
https://doaj.org/article/d97f95a149e9442084384ee0ec25f125
Autor:
N. P. Ovchinnikov
Publikováno v:
Gornyi Zhurnal. :74-78
Autor:
N. P. Ovchinnikov
Publikováno v:
Obogashchenie Rud. :48-51
Autor:
N. P. Ovchinnikov, I. V. Zyryanov
Publikováno v:
Gornyi Zhurnal. :95-99
Autor:
N. P. Ovchinnikov
Publikováno v:
Obogashchenie Rud. :53-56
Autor:
N. P. Ovchinnikov
Publikováno v:
Obogashchenie Rud. :46-49
Publikováno v:
Journal of Analytical Methods in Chemistry, Vol 2017 (2017)
The thermal emission of alkali metal ions from Al30-pillared montmorillonite in comparison with its natural form was studied by mass spectrometry in the temperature range 770–930 K. The measurements were carried out on a magnetic mass spectrometer
Externí odkaz:
https://doaj.org/article/f56ce2b4abe948f29a1b7dca4af6e147
Autor:
N. P. Ovchinnikov
Publikováno v:
Obogashchenie Rud. :41-46
In practice, the difference between the actual and planned costs forthe maintenance of slurry pumps used at concentration and screening plants of Russian diamond mining companies is mainly represented by the costs of purchase and delivery of their ne