Zobrazeno 1 - 10
of 245
pro vyhledávání: '"James M. Sabatier"'
Autor:
James M. Sabatier
Publikováno v:
The Journal of the Acoustical Society of America. 146:2975-2978
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc0723c544c4b4995b139bbeb320a711
https://doi.org/10.1121/1.5137312
https://doi.org/10.1121/1.5137312
Autor:
James M. Sabatier, Brandon Hubbard
Publikováno v:
The Journal of the Acoustical Society of America. 150:A335-A335
The long term effects of natural weathering on the acoustic-to-seismic coupling ratio over buried containers is being investigated at a test site near the campus of the University of Mississippi. The weathering experiment has been carried out over fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edae5d8756191b9b1ca2159c62df1784
https://doi.org/10.1121/10.0008490
https://doi.org/10.1121/10.0008490
Autor:
James M. Sabatier
Publikováno v:
The Journal of the Acoustical Society of America. 148:2460-2460
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daf22f9d0b3a38f136e1a356745d3152
https://doi.org/10.1121/1.5146793
https://doi.org/10.1121/1.5146793
Autor:
James M. Sabatier
Publikováno v:
The Journal of the Acoustical Society of America. 146:2783-2783
The effects of rainfall on one type of buried container has been investigated at a test site near the University of Mississippi. Simulated and natural rainfall experiments were carried out over a three-year time period. The measurements allow for wea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::614b550302790aa905fd4c2399d4aa51
https://doi.org/10.1121/1.5136637
https://doi.org/10.1121/1.5136637
Autor:
Sabin Timsina, James M. Sabatier
Publikováno v:
The Journal of the Acoustical Society of America. 146:2784-2784
In-air Doppler ultrasound is used to measure human gait parameters as a person walks in a hallway. Single element, 10 mm diameter transmit and receive transducers are used for a walk range from 2–10 m in a continuous wave mode at 40 kHz. The person
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df0c29987cc22ad99df1c200c5bffeeb
https://doi.org/10.1121/1.5136643
https://doi.org/10.1121/1.5136643
Publikováno v:
IEEE Sensors Journal. 13:1464-1472
Personnel detection using inexpensive nonimaging sensors is becoming increasingly important for several applications, namely, border surveillance, perimeter protection, and urban operations. In this paper, we explore the utility of ultrasonic sensors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db937e0d72cbd7fccfc03f5e9727abe0
https://doi.org/10.1109/jsen.2012.2236550
https://doi.org/10.1109/jsen.2012.2236550
Publikováno v:
The Journal of the Acoustical Society of America. 132:EL243-EL249
Extraction of Doppler signatures that characterize human motion has attracted a growing interest in recent years. These Doppler signatures are generated by various components of the human body while walking, and contain unique features that can be us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::508761f3f7537b5086b17964fc9158e0
https://doi.org/10.1121/1.4746421
https://doi.org/10.1121/1.4746421
Autor:
Marshall R. Bradley, James M. Sabatier
Publikováno v:
The Journal of the Acoustical Society of America. 128:EL248-EL253
Observed human-gait features in Doppler sonar grams are explained by using the Boulic-Thalmann (BT) model to predict joint angle time histories and the temporal displacements of the body center of mass. Body segments are represented as ellipsoids. Te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a68db7abd6d2376c1e7d6862d47c29e9
https://doi.org/10.1121/1.3499702
https://doi.org/10.1121/1.3499702
Autor:
James M. Sabatier, Zhiqu Lu
Publikováno v:
Soil Science Society of America Journal. 73:1614-1625
To monitor and understand the temporal variations of sound speed due to the changes of soil physical properties such as soil water potential, moisture content, and soil temperature under natural conditions, a long-term field soil survey has been cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f51840e407f0b6e055859191a8a2a010
https://doi.org/10.2136/sssaj2008.0073
https://doi.org/10.2136/sssaj2008.0073
Autor:
Alexander Ekimov, James M. Sabatier
Publikováno v:
The Journal of the Acoustical Society of America. 121:EL114-EL119
Human footsteps generate broadband frequency vibrations in the ground/floor and sound in the air from a few Hertz up to ultrasonic frequencies due to striking and sliding contacts between a foot and the ground/floor. The high-frequency (above 1 kHz)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cab98d33fa449bd7c5d95fc7a10175b8
https://doi.org/10.1121/1.2437847
https://doi.org/10.1121/1.2437847