Results 41 to 50 of about 27,143 (281)
On fixed points of multivalued mappings [PDF]
English translation: Bulletin of the South Ural State University,
Series: Mathematical Modelling, Programming and Computer Software, 2016, 9,
20-31, 2014 The paper discusses the conditions for the existence of fixed points of multivalued mappings that are not based on the linear structure of the set. The descriptions for the sets of fixed points for mappings with closed graph in compact Hausdorff spaces and in metrizable spaces, as well as for continuous functions in spaces with convergence (Frechet ...
arxiv +1 more source
BISMUTH MINERALS OF SULFIDE-MAGNETITE ORES FROM THE AKTASH DEPOSIT (WESTERN KARAMAZAR, TAJIKISTAN) [PDF]
Минералогия, 2019 Bismuth mineralization is studied in sulfide-magnetite ores of the Aktash deposit in Western Karamazar (Northern Tajikistan), which is hosted in the Middle–Upper Paleozoic sedimentary and intrusive rocks.
U.A. Yatimov +3 more
doaj +1 more source
MINERALOGY AND ORE FORMATION CONDITIONS OF THE NAILY GOLD DEPOSIT (SOUTH URALS) [PDF]
МинералогияThe paper examines mineralogy of noble metals and ore formation conditions at the Naily gold deposit (South Urals), which is hosted in pyrite-bearing talc-carbonate, chlorite-quartz-carbonate and quartz-carbonate metasomatites after serpentinites and ...
A.D. Smirnitskaya +5 more
doaj +1 more source
Biodiversity of Terrestrial Cyanobacteria of the South Ural Region [PDF]
Cryptogamie, Algologie, 2018 South Ural is a territory with a unique geographical position and heterogeneous natural conditions. Unexplored biodiversity of the terrestrial cyanobacteria of this territory is very high. We undertook a floristic study covering all botanical-geographical zones of the Bashkiria and Bredinskiy district of the Chelyabinsk region.
Jeffrey R. Johansen +3 more
openaire +2 more sources
Sulfide breccias from the Semenov-3 hydrothermal field, Mid-Atlantic Ridge: authigenic mineral formation and trace element pattern [PDF]
, 2018 The aim of this paper is the investigation of the role of diagenesis in the transformation of clastic sulfide sediments such as sulfide breccias from the Semenov-3 hydrothermal field (Mid-Atlantic Ridge).
Artemyev, Dmitry +11 more
core +3 more sources
SUPPLEMENTARY TO THE COMPOSITION OF THE URAL BERYLS AND INCLUSIONS OF SYNGENETIC MINERALS IN THEM [PDF]
Минералогия, 2023 In addition to the data of predecessors, the chemical composition of zoned or zoned-sectorial beryl crystals from pegmatites of the Mariinsky and Kvartalny deposits of the Urals emerald mines in the Central Urals, granitic pegmatite of mine no.
V.I. Popova +2 more
doaj +1 more source
A computer simulation of the Volga River hydrological regime: a problem of water-retaining dam optimal location [PDF]
Bulletin of the South Ural State University, Series: Mathematical
Modelling, Programming and Computer Software, 2017, vol.10, no.3, 148-155, 2017 We investigate of a special dam optimal location at the Volga river in area of the Akhtuba left sleeve beginning (7 \, km to the south of the Volga Hydroelectric Power Station dam). We claim that a new water-retaining dam can resolve the key problem of the Volga-Akhtuba floodplain related to insufficient water amount during the spring flooding due to ...
arxiv +1 more source
MINERAL INCLUSIONS IN PLATINUM GRAINS FROM THE KAZAN PLACER (SOUTH URALS) [PDF]
Минералогия, 2020 Platinum grains from the Kazan placer in the South Urals contain inclusions of native metals (gold, osmium group alloys), as well as PGE chalcogenides: sulfides (laurite, erlichmanite, bauite), sulfoarsenides (irarsite and hollingworthite ...
E.V. Zaykova +2 more
doaj +1 more source
Extremely low-resource machine translation for closely related languages [PDF]
arXiv, 2021 An effective method to improve extremely low-resource neural machine translation is multilingual training, which can be improved by leveraging monolingual data to create synthetic bilingual corpora using the back-translation method. This work focuses on closely related languages from the Uralic language family: from Estonian and Finnish geographical ...
arxiv
STUDY OF SYNANTHROPIC PLANTS OF THE SOUTH URAL
International Journal of GEOMATE, 2017 The present study aimed to assess the long-term dynamics of the synanthropic vegetation of the road and path network of the Ilmen State Reserve. The analysis of the synanthropic species spread among coenofloras of the elements of the road and path network revealed an increasing synanthropization index in the gradient of the stress factor for all forest
Irina V. Mashkova +3 more
openaire +2 more sources