Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Sergey Grebenkin"'
Publikováno v:
Geosciences, Vol 13, Iss 11, p 347 (2023)
Arctic permafrost often contains gas-saturated horizons. The gas component in freezing and frozen soils can exist under different pressures, which are expected to affect their properties and behavior. The effect of pore gas pressure on the thermal co
Externí odkaz:
https://doaj.org/article/a3298dfaff2645afb6d7fcf87c73867a
Publikováno v:
Geosciences, Vol 13, Iss 10, p 316 (2023)
High-latitude permafrost, including hydrate-bearing frozen ground, changes its properties in response to natural climate change and to impacts from petroleum production. Of special interest is the behavior of thermal conductivity, one of the key para
Externí odkaz:
https://doaj.org/article/07b041f1836840e5b94e1c2a221c35c8
Publikováno v:
Geosciences, Vol 12, Iss 9, p 321 (2022)
Formation and dissociation of pore gas hydrates in permafrost can change its properties, including fluid flow capacity. Permeability is one of the most significant parameters in the study of hydrate-containing rocks, especially in the case of gas bur
Externí odkaz:
https://doaj.org/article/d58e3684f4ae4a62ba9a8c8271f41a7d
Autor:
Evgeny Chuvilin, Julia Stanilovskaya, Aleksey Titovsky, Anton Sinitsky, Natalia Sokolova, Boris Bukhanov, Mikhail Spasennykh, Alexey Cheremisin, Sergey Grebenkin, Dinara Davletshina, Christian Badetz
Publikováno v:
Geosciences, Vol 10, Iss 5, p 170 (2020)
Methane is a powerful greenhouse gas, and the abrupt degassing events that recently have formed large craters on the Russian Arctic Yamal and Gydan Peninsulas have caused major concern. Here we present field data on cover sediments and evolution of a
Externí odkaz:
https://doaj.org/article/7ee04b6f22ea47e89886b4163f002e4b
Autor:
Evgeny Chuvilin, Valentina Ekimova, Boris Bukhanov, Sergey Grebenkin, Natalia Shakhova, Igor Semiletov
Publikováno v:
Geosciences, Vol 9, Iss 4, p 188 (2019)
Destabilization of intrapermafrost gas hydrate is one possible reason for methane emission on the Arctic shelf. The formation of these intrapermafrost gas hydrates could occur almost simultaneously with the permafrost sediments due to the occurrence
Externí odkaz:
https://doaj.org/article/ff3294fb566d4084886bc5e24fa088c1
Publikováno v:
Geosciences, Vol 8, Iss 12, p 431 (2018)
Gases releasing from shallow permafrost above 150 m may contain methane produced by the dissociation of pore metastable gas hydrates, which can exist in permafrost due to self-preservation. In this study, special experiments were conducted to study t
Externí odkaz:
https://doaj.org/article/7ec6fb9482bc4d4896ff76d469fc00cd
Publikováno v:
Macromolecules. 54:10059-10067
Although the diffusion of small molecules in amorphous polymers attracts much attention due to a variety of applications of polymer materials, little is known about the mechanism of diffusion. In t...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1670ba27502e9aa504e162b273fec462
https://doi.org/10.1021/acs.macromol.1c01183
https://doi.org/10.1021/acs.macromol.1c01183
Publikováno v:
Energy & Fuels. 35:7874-7882
The gas permeability of sandy porous sediments is studied in freezing/thawing and pore gas hydrate formation/dissociation experiments using a specially designed system. The permeability of sandy so...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fed87d37e4910843360145e7ae6d8dc4
https://doi.org/10.1021/acs.energyfuels.1c00366
https://doi.org/10.1021/acs.energyfuels.1c00366
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 57:1097-1104
The diffusion of small molecules through amorphous polymers proceeds by the thermally activated jumps whose rate changes from one region to another due to polymer heterogeneity. Little is known at present about the origin of diffusion heterogeneity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64c0ff55a9bc4f2ffe77da80e5081fc2
https://doi.org/10.1002/polb.24864
https://doi.org/10.1002/polb.24864
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 56:288-296
Although gas sorption in glassy polymers is a well-studied phenomenon, no general microscopical model is developed which is able to describe the gas sorption in a wide temperature range using only characteristics of polymer and gas molecule. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a60efd80457e8bc94deef2e81a6a3c9
https://doi.org/10.1002/polb.24540
https://doi.org/10.1002/polb.24540