Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Douglas G. Todoroff"'
Publikováno v:
The Journal of the Acoustical Society of America. 93:1762-1783
The scattering of sound by objects buried in underwater sediments is studied in the context of an exactly soluble model. The model consists of two fluid half‐spaces separated by a planar, fluid, transition layer of arbitrary thickness. Attenuation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fc709cdea4c366a6e4d7a6e613a25f4
https://doi.org/10.1121/1.406719
https://doi.org/10.1121/1.406719
Publikováno v:
The Journal of the Acoustical Society of America. 95:3001-3001
Theoretical calculations have shown that the high‐frequency scattering from a thin spherical shell is dominated by a single peak that occurs near the opening of the first symmetric Lamb wave. This peak is associated with a region of strong negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b93dc2d5cf681310ad37851889988a1
https://doi.org/10.1121/1.408839
https://doi.org/10.1121/1.408839
Autor:
Douglas G. Todoroff, Steven G. Kargl
Publikováno v:
The Journal of the Acoustical Society of America. 92:2425-2425
The Coastal Systems Station acoustic test facility has two facilities (pontoon barge and measurement pier) for providing calibrations and tests of underwater acoustic devices. Both facilities reside over a freshwater pond with a maximum depth of 25 f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6629977deb1a5fbd1ceb3a6de377104c
https://doi.org/10.1121/1.404618
https://doi.org/10.1121/1.404618
Autor:
Joseph L. Lopes, Douglas G. Todoroff
Publikováno v:
The Journal of the Acoustical Society of America. 88:S131-S131
A measurement was conducted to investigate the effect of sediment loading on the characteristic elastic response of an object. Backscattered form functions were obtained for free field and buried 2% and 11% spherical shells. The results have shown th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f60e8e7829f82dadb7a94b341c618fc8
https://doi.org/10.1121/1.2028597
https://doi.org/10.1121/1.2028597
Autor:
Roger H. Hackman, Douglas G. Todoroff
Publikováno v:
The Journal of the Acoustical Society of America. 78:1058-1071
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c63568ea7b9873591f69ce40a848a36
https://doi.org/10.1121/1.393024
https://doi.org/10.1121/1.393024
Publikováno v:
The Journal of the Acoustical Society of America. 77:S78-S78
Previously, an analysis [Roger H. Hackman and Douglas G. Todoroff, J. Acoust. Soc. Am. Suppl. 1 76, S8 (1984)] of scattering from a solid aluminum cylinder with an aspect ratio of 10:1 was presented based on a spheroidal coordinate T‐matrix formali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::917c62789c8aad067267dd3926a17750
https://doi.org/10.1121/1.2022511
https://doi.org/10.1121/1.2022511
Autor:
Douglas G. Todoroff, D. H. Trivett
Publikováno v:
The Journal of the Acoustical Society of America. 79:S85-S85
Underwater acoustic intensity measurements require the detection of both the acoustic pressure and the fluid particle velocity. The measurement of the acoustic pressure is easily obtained using conventional (pressure‐type) hydrophones. The particle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12e2045359d4b04da3f5b2812c695db2
https://doi.org/10.1121/1.2023429
https://doi.org/10.1121/1.2023429
Publikováno v:
The Journal of the Acoustical Society of America. 82:S50-S50
Previously, an analysis of the acoustically coupled, axisymmetric, elastic excitations of a fluid‐loaded, prolate spheroidal target was presented [D. H. Trivett, G. S. Sammelmann, and R. H. Hackman, J. Acoust. Soc. Am. Suppl. 1 81, S13 (1987)]. At
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb5ee5da9f87c05146dbeff17622ed83
https://doi.org/10.1121/1.2024849
https://doi.org/10.1121/1.2024849
Autor:
Roger H. Hackman, Douglas G. Todoroff
Publikováno v:
The Journal of the Acoustical Society of America. 82:S49-S49
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac21379b87c036d5ab2cad82905dd436
https://doi.org/10.1121/1.2024836
https://doi.org/10.1121/1.2024836
Autor:
Roger H. Hackman, Douglas G. Todoroff
Publikováno v:
The Journal of the Acoustical Society of America. 76:S8-S8
In a previous paper [R. H. Hackman, J. Acoust. Soc. Am. 75, 35–45 (1984)] a spheroidal‐coordinate‐based transition matrix formalism was established for acoustic and elastic wave scattering. In this paper, we consider the acoustic scattering by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc9b56e8f38e8087bc82a11271737484
https://doi.org/10.1121/1.2022083
https://doi.org/10.1121/1.2022083