Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Mikhail Grigoriev"'
Autor:
Vladimir Kibitkin, Nickolai Savchenko, Mikhail Grigoriev, Andrey Solodushkin, Alexander Burlachenko, Ales Buyakov, Anna Zykova, Valery Rubtsov, Sergei Tarasov
Publikováno v:
Ceramics, Vol 6, Iss 1, Pp 102-131 (2023)
In this study, the two-dimensional digital image correlation (DIC) technique has been applied to sequences of images taken from the surfaces of porous, segmented alumina samples during uniaxial compression tests. The sintered alumina was structurally
Externí odkaz:
https://doaj.org/article/2f0ebf1d3ded45fa88fcfd3d8363addc
Autor:
Jens Strauss, Sebastian Laboor, Lutz Schirrmeister, Alexander N. Fedorov, Daniel Fortier, Duane Froese, Matthias Fuchs, Frank Günther, Mikhail Grigoriev, Jennifer Harden, Gustaf Hugelius, Loeka L. Jongejans, Mikhail Kanevskiy, Alexander Kholodov, Viktor Kunitsky, Gleb Kraev, Anatoly Lozhkin, Elizaveta Rivkina, Yuri Shur, Christine Siegert, Valentin Spektor, Irina Streletskaya, Mathias Ulrich, Sergey Vartanyan, Alexandra Veremeeva, Katey Walter Anthony, Sebastian Wetterich, Nikita Zimov, Guido Grosse
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Ice-rich permafrost in the circum-Arctic and sub-Arctic (hereafter pan-Arctic), such as late Pleistocene Yedoma, are especially prone to degradation due to climate change or human activity. When Yedoma deposits thaw, large amounts of frozen organic m
Externí odkaz:
https://doaj.org/article/837808cfa519472bbd62f36bf6dfebff
Autor:
Clara Rutkowski, Josefine Lenz, Andreas Lang, Juliane Wolter, Sibylle Mothes, Thorsten Reemtsma, Guido Grosse, Mathias Ulrich, Matthias Fuchs, Lutz Schirrmeister, Alexander Fedorov, Mikhail Grigoriev, Hugues Lantuit, Jens Strauss
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
We determine Hg concentrations of various deposits in Siberia’s deep permafrost and link sediment properties and Hg enrichment to establish a first Hg inventory of late Pleistocene permafrost down to a depth of 36 m below surface. As Arctic warming
Externí odkaz:
https://doaj.org/article/b0b02dfa4d1d468fbbdc3ba23e87c2db
Autor:
Bennet Juhls, Sofia Antonova, Michael Angelopoulos, Nikita Bobrov, Mikhail Grigoriev, Moritz Langer, Georgii Maksimov, Frederieke Miesner, Pier Paul Overduin
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Arctic deltas and their river channels are characterized by three components of the cryosphere: snow, river ice, and permafrost, making them especially sensitive to ongoing climate change. Thinning river ice and rising river water temperatures may af
Externí odkaz:
https://doaj.org/article/dd626472126c4642aa214086be31c56b
Autor:
Maren Jenrich, Michael Angelopoulos, Guido Grosse, Pier Paul Overduin, Lutz Schirrmeister, Ingmar Nitze, Boris K. Biskaborn, Susanne Liebner, Mikhail Grigoriev, Andrew Murray, Loeka L. Jongejans, Jens Strauss
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Permafrost region subsurface organic carbon (OC) pools are a major component of the terrestrial carbon cycle and vulnerable to a warming climate. Thermokarst lagoons are an important transition stage with complex depositional histories during which p
Externí odkaz:
https://doaj.org/article/bf15e37491734ef38097f579560facc3
Autor:
Nickolai Savchenko, Irina Sevostyanova, Mikhail Grigoriev, Tatiana Sablina, Ales Buyakov, Maxim Rudmin, Andrey Vorontsov, Evgeny Moskvichev, Valery Rubtsov, Sergei Tarasov
Publikováno v:
Lubricants, Vol 10, Iss 7, p 140 (2022)
WC/Y–TZP–Al2O3 hybrid ceramic–matrix composites (CMCs) with dispersed Hadfield steel particles were sintered and then tested at sliding speeds in the range of 7–37 m/s and contact pressure 5 MPa. Fast and low-temperature sinter-forging allowe
Externí odkaz:
https://doaj.org/article/de305feb17ef4224b480e4bc4a2f9902
Autor:
Pavel Nikitin, Ilya Zhukov, Aleksey Matveev, Sergei Sokolov, Mikhail Grigoriev, Alexander Vorozhtsov
Publikováno v:
Materials, Vol 14, Iss 19, p 5521 (2021)
AlMgB14-TiB2 composite materials were fabricated by self-propagating high-temperature synthesis (SHS) followed by spark plasma sintering of the obtained SHS products. It was found that, during the SHS, the AlMgB14 phase is formed at a donor (Ti + 2B)
Externí odkaz:
https://doaj.org/article/311a742800884bab81105a3ae2e44a04
Autor:
Vladimir Kibitkin, Mikhail Grigoriev, Alexander Burlachenko, Andrey Solodushkin, Nickolai Savchenko, Valery Rubtsov, Sergei Tarasov
Publikováno v:
Materials, Vol 14, Iss 13, p 3720 (2021)
Evaporation of paraffin and ultra-high-molecular-weight polyethylene admixed with alumina powder for the slip casting and sintering process allowed the obtainment of segmented porous alumina ceramics with 50% total porosity, whose deformation behavio
Externí odkaz:
https://doaj.org/article/8c95a581a5434962827f7d98ceb3848a
Autor:
Alfiya Safiulina, Nataliya Borisova, Mikhail Grigoriev, Dmitriy Baulin, Vladimir Baulin, Aslan Tsivadze
Publikováno v:
Molecules, Vol 26, Iss 8, p 2217 (2021)
With the aim to find new efficient extractants for recovery of f-block elements from processing wastes of different origin, we have compared a series of phosphoryl-containing podands, including (2-(diphenylphosphorylmethoxy)phenyl)diphenylphosphine o
Externí odkaz:
https://doaj.org/article/fe6289501ace4680bf283e0307077cdf
Autor:
Vladimir Promakhov, Alexey Matveev, Nikita Schulz, Mikhail Grigoriev, Andrey Olisov, Alexander Vorozhtsov, Alexander Zhukov, Victor Klimenko
Publikováno v:
Applied Sciences, Vol 11, Iss 5, p 2426 (2021)
Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis
Externí odkaz:
https://doaj.org/article/dac25bd80ed049a6b79c465c5eb5aa9d