Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Mark J. McKenna"'
Autor:
Philip J. Stimac, John W. Haas, Richard Demar, Gregory F. S. Hewitt, Mark J. McKenna, Matthew Fordham, Eric M. Jordan
Publikováno v:
SPIE Proceedings.
Tracking individuals in areas such as dense urban environments and building interiors is desirable for numerous critical applications, but has been problematic mainly because of the unreliability or unavailability of GPS in many locations of interest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b63f4e05e32c31772678120d7f8351d
https://doi.org/10.1117/12.2176978
https://doi.org/10.1117/12.2176978
Autor:
Mark J. McKenna, K. Kishio, H. Zhang, Moises Levy, Tatsumi Kimura, Bimal K. Sarma, Carsten Hucho, K. Kitazawa
Publikováno v:
Physica B: Condensed Matter. :554-557
Ultrasonic attenuation and sound velocity were measured at frequencies ranging from 25 to 305 MHz in a large single crystal of La 2 − x Sr x CuO 4 with nominal x of about 0.15. The observed features in attenuation and velocity suggest a relaxation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4641e0f4a30190781011325fb84b0d80
https://doi.org/10.1016/0921-4526(96)00172-x
https://doi.org/10.1016/0921-4526(96)00172-x
Autor:
Moises Levy, Carsten Hucho, Tatsumi Kimura, Bimal K. Sarma, H. Zhang, Mark J. McKenna, K. Kishio, K. Kitazawa
Publikováno v:
Physica B: Condensed Matter. :125-127
The ultrasonic attenuation and relative sound velocity measured at frequencies up to 305 MHz in the superconducting state of a La2-xSrxCuO4 single crystal. For longitudinal sound waves propagating along the c-axis, the attenuation increases with incr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::004fc9c7d17259582b258361dabe869b
https://doi.org/10.1016/0921-4526(95)00671-0
https://doi.org/10.1016/0921-4526(95)00671-0
Autor:
Mark J. McKenna
Publikováno v:
Handbook of Elastic Properties of Solids, Liquids, and Gases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20a66b3aa312ea091cc542d6593518a8
https://doi.org/10.1016/b978-012445760-7/50008-3
https://doi.org/10.1016/b978-012445760-7/50008-3
Publikováno v:
AIP Conference Proceedings.
Superheterodyne receivers are of particular interest for the study of nonlinear effects in materials, but a lack of absolute displacement calibration techniques has allowed only relative measurements on material nonlinearities with the equipment. Thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60d4e5463e2b9761a0b0b9a4a6ae79cc
https://doi.org/10.1063/1.1373903
https://doi.org/10.1063/1.1373903
Publikováno v:
The Journal of the Acoustical Society of America. 97:3394-3394
Pulsed surface acoustic waves (SAW’s) at 165 MHz are used to study the superconducting transition and an apparent structural phase transition in films of YBa2Cu3O7−δ (YBCO). The structural phase transition occurs in the temperature range 200–2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c73edd30dace1f98ef418619c16bc8df
https://doi.org/10.1121/1.412553
https://doi.org/10.1121/1.412553
Autor:
Mark J. McKenna, Bimal K. Sarma, Hong Zhang, K. Kishio, Tatsumi Kimura, Moises Levy, K. Kitazawa
Publikováno v:
The Journal of the Acoustical Society of America. 97:3326-3326
The temperature dependence of the ultrasonic attenuation and the relative sound velocity were measured in a single crystal of (La1−xSrx)2CuO4 (x=0.075, nominal) with dimensions of about 4×4×4 mm3, in a temperature range of 4.2 to 50 K. The superc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7661e8b798e2ac1d655156eff828b49a
https://doi.org/10.1121/1.412807
https://doi.org/10.1121/1.412807
Autor:
Bimal K. Sarma, Tatsumi Kimura, K. Kishio, Moises Levy, Hong Zhang, K. Kitazawa, Mark J. McKenna
Publikováno v:
The Journal of the Acoustical Society of America. 96:3226-3226
Measurements of the ultrasonic attenuation and sound velocity were made at frequencies of 32 and 87 MHz in a large single crystal of (La0.925Sr0.075)2CuO4 (∼4×4×4 mm3), which exhibits a sharp (ΔT∼1 K) superconducting transition at 37 K. For lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e90d90356070933e70dd245c837656f
https://doi.org/10.1121/1.411427
https://doi.org/10.1121/1.411427
Conference
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.