Zobrazeno 1 - 10
of 452
pro vyhledávání: '"Sergei Alexandrov"'
Publikováno v:
Journal of Applied and Computational Mechanics, Vol 10, Iss 3, Pp 443-454 (2024)
The limit load is an important input parameter of analytical flaw assessment procedures. The accuracy of limit load solutions affects the accuracy of these procedures. The present paper evaluates the influence of a class of the work functions involve
Externí odkaz:
https://doaj.org/article/836228ebbf8c40ee94156964ecfa0324
Autor:
Sergei Alexandrov, Khalil Bendriss
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-47 (2024)
Abstract The metric on the hypermultiplet moduli space of Calabi-Yau compactifications of type II string theory is known to receive D-brane and NS5-brane instanton corrections. We compute explicit expressions for these corrections in the one-instanto
Externí odkaz:
https://doaj.org/article/97cf349aaed44673834ee0fe2a285e6e
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-75 (2024)
Abstract We compute instanton corrections to the partition function of sine-Liouville (SL) theory, which provides a worldsheet description of two-dimensional string theory in a non-trivial tachyon background. We derive these corrections using a matri
Externí odkaz:
https://doaj.org/article/5b293b4d3a0f48a383a92061d9bcb338
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-67 (2022)
Abstract We use string field theory to fix the normalization of the D-instanton corrections to the superpotential involving the moduli fields of type II string theory compactified on an orientifold of a Calabi-Yau threefold in the absence of fluxes.
Externí odkaz:
https://doaj.org/article/4afe07acba6f4abba5e18a860b8f6a99
Publikováno v:
Materials, Vol 16, Iss 23, p 7378 (2023)
Bulk ideal flows constitute a wide class of solutions in plasticity theory. Ideal flow solutions concern inverse problems. In particular, the solution determines part of the boundary of a region where it is valid. Bulk planar ideal flows exist in the
Externí odkaz:
https://doaj.org/article/1cf17921dad04faca7c7a662073c8260
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-52 (2021)
Abstract We compute the contribution of Euclidean D-branes in type IIB string theory on Calabi-Yau threefolds to the metric on the hypermultiplet moduli space in the large volume, weak coupling limit. Our results are in perfect agreement with the pre
Externí odkaz:
https://doaj.org/article/a98502d8369c409ab7d6a32e5f89b293
Publikováno v:
Mathematics, Vol 11, Iss 17, p 3726 (2023)
This paper develops the ideal plastic flow theory for the stationary planar flow of pressure-dependent materials. Two rigid plastic material models are considered. One of these models is the double-shearing model, and the other is the double slip and
Externí odkaz:
https://doaj.org/article/87dadf0eef9c411ca16bce2a3e3effce
Autor:
Daria Grabco, Olga Shikimaka, Constantin Pyrtsac, Daria Topal, Dragisa Vilotic, Marko Vilotic, Sergei Alexandrov
Publikováno v:
Metals, Vol 13, Iss 7, p 1278 (2023)
This work is devoted to the study of the tribological properties of AISI 316L austenitic steel and the effect of the relative velocity of rubbing bodies on the microstructure and mechanical properties. The specificity of the deformation is investigat
Externí odkaz:
https://doaj.org/article/51b79d4481f74ea2a3156a442722c3a9
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-58 (2021)
Abstract Type IIA string theory compactified on a Calabi-Yau threefold has a hypermultiplet moduli space whose metric is known to receive non-perturbative corrections from Euclidean D2-branes wrapped on 3-cycles. These corrections have been computed
Externí odkaz:
https://doaj.org/article/6e850e1d09b34828b4ad50e954d8f797
Publikováno v:
Symmetry, Vol 15, Iss 5, p 981 (2023)
The two families of principal stress trajectories can be regarded as an orthogonal curvilinear coordinate system under plane strain and axial symmetry. Under plane strain, the equilibrium equations in conjunction with a yield criterion comprise a sta
Externí odkaz:
https://doaj.org/article/3301ce7a9fa24779a882f22dc0adf676