Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Alexander Bekker"'
Autor:
Chang Xie, Li Zhou, Tiecheng Wu, Renwei Liu, Sijie Zheng, Vladimir G. Tsuprik, Alexander Bekker
Publikováno v:
Frontiers in Energy Research, Vol 10 (2022)
The brash ice channel formed with icebreaker navigation is a normal working scenario for ice-going vessels. Therefore, it is necessary to study brash ice resistance in this condition. In this study, CFD and DEM coupling methods were adopted to invest
Externí odkaz:
https://doaj.org/article/11cccf444ea34fd1a877b8917203f217
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 4, p 736 (2023)
At present, the calculation method of ice load on surface navigation ships has been very mature, but the calculation method of submarine ice load is very few. The reasonable evaluation of submarine ice load has become an urgent problem to be solved.
Externí odkaz:
https://doaj.org/article/59cf86b47e604eb9adf38afcb3782912
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Bose–Einstein condensates were demonstrated at low temperatures, mostly with ultracold bosonic atoms. Here, the authors demonstrate BEC of photons in a standard 1D erbium–ytterbium co-doped fiber cavity at, below and above room temperature.
Externí odkaz:
https://doaj.org/article/c9321cadc5a74eecbe56bbb081d2c994
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 11, p 870 (2020)
The estimation of ship resistance in ice is a fundamental area of research and poses a substantial challenge for the design and safe use of ships in ice-covered waters. In order to estimate the ice resistance with greater reliability, we develop in t
Externí odkaz:
https://doaj.org/article/c83487be83104d659257e9af777258ed
Publikováno v:
Continuum Mechanics and Thermodynamics. 34:1621-1639
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdd5952c4f5d79fb357c541a504e7753
https://doi.org/10.1007/s00161-022-01152-1
https://doi.org/10.1007/s00161-022-01152-1
Publikováno v:
Ocean Engineering. 269:113488
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dcbd12723a41aa3c1ab3d685525bb18
https://doi.org/10.1016/j.oceaneng.2022.113488
https://doi.org/10.1016/j.oceaneng.2022.113488
Publikováno v:
Optics express. 29(17)
We demonstrate photon Bose-Einstein condensation (photon-BEC) at a broad temperature range that is valid also in the long 1D fiber cavity limit. It is done with an erbium-ytterbium co-doped fiber (EYDF) cavity by overcoming the challenging requiremen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18807091a01ed2d52042f33bcd225039
https://pubmed.ncbi.nlm.nih.gov/34615189
https://pubmed.ncbi.nlm.nih.gov/34615189
Autor:
Elena Ivashkina, Emiliya Ivanchina, Igor Dolganov, Asem Nurmakanova, Irena Dolganova, Alexander Bekker
Publikováno v:
Catalysis Today. 329:206-213
The aim of this work is to increase the yield of isoalkanes and improve the quality of the alkylate produced by optimizing the operating conditions of the reactor using the unsteady mathematical model. The theoretical significance of this work consis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ad0cdb9b1102d3adab0bb66cc75d3bc
https://doi.org/10.1016/j.cattod.2018.11.076
https://doi.org/10.1016/j.cattod.2018.11.076
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Nature Communications
Nature Communications
Bose–Einstein condensation (BEC) is a special many-boson phenomenon that was observed in atomic particles at ultra-low temperatures. Later, BEC was also shown for non-atomic bosons, such as photons. Those experiments were usually done in micron-siz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5d4564d4529b7898973b1955310758e
http://link.springer.com/article/10.1038/s41467-019-08527-0
http://link.springer.com/article/10.1038/s41467-019-08527-0
Publikováno v:
Optics Communications. 431:151-157
We study wavelength selectable and switchable lasers with two kinds of fiber Bragg grating (FBG) reflectors, based on high harmonic mode-locking frequency addressing near 10 GHz and 25 GHz. We used fiber lasers and also show results with a cavity ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e1d673e805a1cbf3d634b924d34f519
https://doi.org/10.1016/j.optcom.2018.08.077
https://doi.org/10.1016/j.optcom.2018.08.077