Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Evgeny Yakovlev"'
Autor:
Igor Tokarev, Evgeny Yakovlev, Sergey Erokhin, Tamara Tuzova, Sergey Druzhinin, Andrey Puchkov
Publikováno v:
Water, Vol 16, Iss 11, p 1632 (2024)
Small intermountain river basins are most suitable for developing new methods to estimate water balance due to their well-defined catchment boundaries, relatively rapid runoff processes, and accessible landscapes for study. In general terms, dissecti
Externí odkaz:
https://doaj.org/article/216c09d0e0194f71862c3255c9c9383a
Autor:
Andrey Puchkov, Evgeny Yakovlev
Publikováno v:
Applied Sciences, Vol 13, Iss 23, p 12952 (2023)
The paper is devoted to the assessment of the content of anthropogenic radionuclides in tundra landscapes of the subarctic zone of Russia. The authors of the article studied the features of accumulation and migration of anthropogenic radionuclides an
Externí odkaz:
https://doaj.org/article/e20b3889e4b64dd1bae014dc2dbe7a0b
Publikováno v:
Applied Sciences, Vol 13, Iss 18, p 10486 (2023)
Dating young peatlands using the 210Pb dating procedure is a challenging task. The traditional 210Pb age models assume an exponential decline in radioactivity in line with depth in the peat profile. Lead exhibits considerable migratory capacity in Ar
Externí odkaz:
https://doaj.org/article/c20f586358434f55b267d9a592585d15
Publikováno v:
Water, Vol 15, Iss 10, p 1855 (2023)
In 2009–2018, the isotopic composition of oxygen and hydrogen in the atmospheric precipitation, groundwater and river and lake water of Lake Onega basin was studied. The weighted annual isotope composition of precipitation at Petrozavodsk was δ18O
Externí odkaz:
https://doaj.org/article/663d82c0135840a78c41b01af3565206
Publikováno v:
Applied Sciences, Vol 13, Iss 9, p 5778 (2023)
This paper reports on the research results of the radioactivity levels and upward dispersion of radionuclides of atmospheric fallout 210Pb, 137Cs, 241Am and 234,238U as well as key physicochemical parameters in a peat deposit subjected to drainage in
Externí odkaz:
https://doaj.org/article/2b38dd7a3be8406a9b542a5d887f3bcd
Publikováno v:
Applied Sciences, Vol 12, Iss 21, p 10870 (2022)
The article presents the results of a study of activity levels and features of the vertical distribution of 210Pb, 137Cs, 234U, 238U and their relationship with the physicochemical parameters of peat deposits. Analysis of the data showed that the ver
Externí odkaz:
https://doaj.org/article/7911b8f3129e4bc99c47c58f59df6773
Publikováno v:
Applied Sciences, Vol 12, Iss 14, p 6988 (2022)
(1) Background: The Quaternary river bank deposits of the European North of Russia contain several mollusk fossils that can give important past-climate information which is relevant to understand the evolution of climate in the Holocene period and pr
Externí odkaz:
https://doaj.org/article/d124fac8cab94f11bae12969ce8966f8
Autor:
Evgeny Yakovlev, Andrey Puchkov
Publikováno v:
Applied Sciences, Vol 11, Iss 24, p 11765 (2021)
We present the results of field and experimental studies to assess the influence on the formation of the radon field over the kimberlite pipes of the Arkhangelsk diamondiferous province. Measurements were made in the field to establish the radon radi
Externí odkaz:
https://doaj.org/article/f28fb31789e548bea77a12e1f7c4e9fd
Non-Equilibrium Uranium as an Indicator of Global Climate Variations—The World Ocean and Large Lakes
Autor:
Igor Tokarev, Evgeny Yakovlev
Publikováno v:
Water, Vol 13, Iss 24, p 3514 (2021)
In natural water, as a rule, there is a violation of radioactive equilibrium in the chain 238U … → 234U → 230Th →. Groundwater usually has a 234U/238U ratio in the range of 0.8–3.0 (by activity). However, in some regions, the 234U/238U rati
Externí odkaz:
https://doaj.org/article/dda64165690e4d17ae1bed4fed07c1ff
Publikováno v:
Water, Vol 13, Iss 13, p 1838 (2021)
The isotopic (234U/238U, 2H, 18O) and chemical composition of groundwater on the right bank of the Volga River along the middle reach (European Russia) was studied down to a depth of 400 m. These data allow diagnosis of the presence of a three-compon
Externí odkaz:
https://doaj.org/article/84ceef3ea01e4aca801897fb096c22a0