Results 111 to 120 of about 2,082,070 (319)
ABOUT THE COMPOSITION OF CASSITERITE AND WOLFRAMITE IN ORES FROM THE FAR EAST DEPOSITS [PDF]
The paper presents formulas, which reflect the variations in the composition of cassiterite, wolframite (ferberite and hübnerite) and associated minerals (silicates, phosphates, tantaloniobates, sulfides, etc.) from the Maly Khingan tin deposits (Khingan
V.I. Popova, V.A. Popov, I.A. Blinov
doaj +1 more source
External water exchange of reservoirs of South Ural
Abstract Reservoirs are building worldwide for the rational usage of water resources. Engineers create reservoirs for redistribution of runoff both in seasonal and multi-annual regime. The duration of stay of river water in slow water exchange condition is one of the major factors which influences the transformation of the river water ...
A I Vtorova +2 more
openaire +1 more source
Regional differentiation of human potential indicators [PDF]
The purpose of the study presented in this article is an interregional analysis of human potential. The quality of the population proper is investigated at the regional level far less than the quality of the population life.
Loksov, V. V. +2 more
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Oil and Product Price Dynamics in International Petroleum Markets [PDF]
In this paper we investigate crude oil and products price dynamics. We present a comparison among ten price series of crude oils and fourteen price series of petroleum products, considering four distinct market areas (Mediterranean, North Western Europe,
Alessandro Lanza +2 more
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Natural radioactive elements (TH, U) in fresh water salt sediments [PDF]
The article is a summary and review of data on TH and U content in salt deposits of natural fresh water in South Siberia, the Urals and Kazakhstan.
Арынова, Ш. Ж. +3 more
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South Ural Railway Intelligentsia in the Pages of Regional Periodicals (the Second Half of the XIX - the Beginning of the XX Century) [PDF]
Zlata Anatolyewna Shmidt +1 more
openalex +1 more source
On the ecology of species belonging to the genus Mesocyclops Sars (Crustacea, Copepoda) dwelling in the water-bodies of the Urals and Pri-Ural territory. [Translation from: Zoologicheskie Zhurnal 44(1) 127-130, 1965. ] [PDF]
In the waterbodies of central Russia, the Urals and western Siberia four species of Crustacea, related to the genus Mesocyclops, are widely distributed: M. (s.str.) leuckarti (Claus), M. (Thermocyclops) oithonoides Sars, [M.](Th.) crassus (Fisch.) and M.
Ulomskii, S.N.
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