Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Christopher Hakoda"'
Publikováno v:
Sensors, Vol 20, Iss 21, p 6344 (2020)
A piezoelectric-based method for information storage is presented. It involves engineering the polarization profiles of multiple piezoelectric wafers to enhance/suppress specific electromechanical resonances. These enhanced/suppressed resonances can
Externí odkaz:
https://doaj.org/article/e3b2b8be1b544419bb18d086db23ae86
Publikováno v:
Sensors, Vol 19, Iss 6, p 1391 (2019)
Lamb waves propagating within a waveguide often have similar frequency content. If there are multiple Lamb wave modes with the same frequency content, the wavenumber spectrum can be used to distinguish between them. As a result, the wavenumber spectr
Externí odkaz:
https://doaj.org/article/a8aba8f8a2f4431eb23f3437c4472c76
Publikováno v:
Applied Sciences, Vol 9, Iss 2, p 257 (2019)
A recent elastic metamaterial study found that resonators that “clamp” a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study inv
Externí odkaz:
https://doaj.org/article/95d73bbe1afa4f6b98f64a3fdd40bdfb
Autor:
Christopher Hakoda, Cliff J. Lissenden
Publikováno v:
Applied Sciences, Vol 8, Iss 6, p 966 (2018)
The partial-wave method takes advantage of the Christoffel equation’s generality to represent waves within a waveguide. More specifically, the partial-wave method is well known for its usefulness when calculating dispersion curves for multilayered
Externí odkaz:
https://doaj.org/article/741c818bb7024d92b06bbb2323f16091
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 69(4)
Multilevel information storage methods have the potential for increasing storage density and improving information security through obfuscation. Taking inspiration from the color quick response codes, we have developed a method for encoding layers of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::245d4dae8eaa3cce493baeadea37649f
https://pubmed.ncbi.nlm.nih.gov/35073261
https://pubmed.ncbi.nlm.nih.gov/35073261
The effect of a transducer's spatial averaging on an elastodynamic guided wave's wavenumber spectrum
Publikováno v:
Ultrasonics. 114
Elastodynamic guided waves propagate in an elastic solid which makes it difficult, if not impractical, to place a receiving transducer in the direct path of the propagating wave (as one would for an acoustic wave in a fluid medium). To account for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67e3413055eaae0cb88bb3d5a8f8bf83
https://pubmed.ncbi.nlm.nih.gov/33756221
https://pubmed.ncbi.nlm.nih.gov/33756221
Publikováno v:
Active and Passive Smart Structures and Integrated Systems IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d560b229947b052c79a046da26e729d0
https://doi.org/10.1117/12.2558801
https://doi.org/10.1117/12.2558801
Publikováno v:
Applied Acoustics. 188:108545
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2cc837de3df64d050548ccf7590fe2e
https://doi.org/10.1016/j.apacoust.2021.108545
https://doi.org/10.1016/j.apacoust.2021.108545
Publikováno v:
The Journal of the Acoustical Society of America. 149:A144-A145
In-field material analysis is an important area of analysis, having the great advantage that the analytical measurement is performed at the site where the material is located, leading to faster and more informed decision making. This turns out to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d711c6267cabc3878d2de913aed8aed1
https://doi.org/10.1121/10.0005357
https://doi.org/10.1121/10.0005357