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pro vyhledávání: '"Stationary phase approximation"'
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Autor:
Gölles Lukas, Zotter Franz
Publikováno v:
Acta Acustica, Vol 7, p 52 (2023)
To supply large audience areas uniformly with amplified direct sound, large-scale sound reinforcement often employs line-source loudspeaker arrays adapted to the listening area by either adjusting the angles or delays between their individual element
Externí odkaz:
https://doaj.org/article/424b7121ceee48729e9af79323ef0bb3
Autor:
Sanjay K. Mohanty
Publikováno v:
Acta Mechanica. 232:283-303
In the present manuscript, the time-dependent capillary gravity wave motion in the presence of a current and an undulated permeable bottom is analyzed. The spectral method is used to simulate the time-dependent surface elevation. Also, the Laplace–
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::546a1fa19139d7d5f599386ac7be6b09
https://doi.org/10.1007/s00707-020-02838-w
https://doi.org/10.1007/s00707-020-02838-w
Autor:
Yu V Chugui
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 56:350-355
The features of far field diffraction phenomena on cylindrical (metal) objects of small diameters (0.01–0.5 mm) are investigated taking into account their reflective properties within the framework of the Kirchhoff–Fresnel scalar theory of light
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d69132d4a7c31e6de606791333c1f45e
https://doi.org/10.3103/s8756699020040044
https://doi.org/10.3103/s8756699020040044
Publikováno v:
IET Microwaves, Antennas & Propagation. 14:1027-1037
Guided modes excited by a current source in a multilayer cylindrical structure is thoroughly investigated. The guidance condition in the multilayer structure is formulated. Based on this, three antenna configurations in cylindrical stratified media t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfeadd2a08fc68311f762daa8eb790ed
https://doi.org/10.1049/iet-map.2020.0044
https://doi.org/10.1049/iet-map.2020.0044
Autor:
V.V. Achkasov, M. Ye. Zhuravlev
Publikováno v:
Reports on Mathematical Physics. 85:375-385
Theoretical study of superluminal sources of electromagnetic radiation boosted after the discovery of Cherenkov-Vavilov radiation. Later, the way to create fictitious sources moving superluminally was suggested. Different approaches have been propose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d19be5bb50f4b6e47f8e00681bc38cbc
https://doi.org/10.1016/s0034-4877(20)30042-2
https://doi.org/10.1016/s0034-4877(20)30042-2
Publikováno v:
Bulletin of the Australian Mathematical Society. 103:132-144
We extend existing methods which treat the semilinear Calderón problem on a bounded domain to a class of complex manifolds with Kähler metric. Given two semilinear Schrödinger operators with the same Dirchlet-to-Neumann data, we show that the inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97272623da2270e17cae026dfebbfc26
https://doi.org/10.1017/s0004972720000428
https://doi.org/10.1017/s0004972720000428
Autor:
D.Q. Lu
Publikováno v:
Journal of Hydrodynamics. 31:1139-1147
The fundamental solutions of the Stokes/Oseen equations due to a point force in an unbounded viscous fluid are referred to as the Stokeslet/Oseenlet, for which a systematic derivation are analytically presented here in terms of a uniform expression.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ff530ca3611aac0899b1791984b492c
https://doi.org/10.1007/s42241-019-0087-0
https://doi.org/10.1007/s42241-019-0087-0
Akademický článek
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