Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ralph Thomas Hoctor"'
Autor:
Scott Stephen Zelakiewicz, William David Smith, William Thomas Ross, Daniel Bruno McDevitt, Brian D. Milbrath, Adrian Ivan, Michael John Wittbrodt, Edward James Nieters, Ralph Thomas Hoctor
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 652:5-9
The detection of radiological and special nuclear material within the country's borders is a crucial component of the national security network. Being able to detect small amounts of radiological material at large distances is especially important fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9252d08d27c47d2017ec17fcfd86cce
https://doi.org/10.1016/j.nima.2011.02.068
https://doi.org/10.1016/j.nima.2011.02.068
Publikováno v:
Journal of Network and Systems Management. 14:7-13
We present a simple distributed concept that appears to insinuate SWARM behavior in a collection of mobile platforms. The control is based on the inter-mobile platform communication links' signal-to-noise ratio. This double use of communications is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::772efcadaddd038da65935ea40942ff8
https://doi.org/10.1007/s10922-005-9010-9
https://doi.org/10.1007/s10922-005-9010-9
Autor:
Ralph Thomas Hoctor, Jing Jin
Publikováno v:
SPIE Proceedings.
Aperture synthesis using a forward-looking ring array is an area of current interest in intracardiac imaging [1]. In general, data from multiple transmits are coherently combined to implement the synthesis, and schemes for the specification of the tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1181c79c0937dbdcc69172d6c7cbf74
https://doi.org/10.1117/12.2006953
https://doi.org/10.1117/12.2006953
Autor:
Scott Dianis, Ralph Thomas Hoctor
Publikováno v:
2011 IEEE International Ultrasonics Symposium.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed4d0ca48f6cb10b8d05d394d4bacc5d
https://doi.org/10.1109/ultsym.2011.0281
https://doi.org/10.1109/ultsym.2011.0281
Publikováno v:
Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2010
Hemodynamic monitoring provides vital information for diagnosing and treating patients in acute clinical settings. A method is investigated to non-invasively monitor changes in the hemodynamic state. The approach utilizes short-axis ultrasound color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bea2f2f08d24e54c2bbde6c0753ebe4b
https://pubmed.ncbi.nlm.nih.gov/21096065
https://pubmed.ncbi.nlm.nih.gov/21096065
Publikováno v:
The Journal of the Acoustical Society of America. 89:799-810
A planar antenna array, the elements of which are deployed on the boundary of some finite region in the aperture plane, is known as a boundary array. Such a deployment of array elements can produce a point spread function with a narrow mainlobe, but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97bb5fdc081f354581a41e7d734fbda6
https://doi.org/10.1121/1.1894640
https://doi.org/10.1121/1.1894640
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 54(5)
A new signal processing approach to estimation of local arterial pulse wave velocity (PWV) in superficial arterial segments using long-axis ultrasound measurements is proposed. The method is designed to be resistant to estimation bias due to pulse wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26e7d05d907fa0681a0b98e67ed55d5
https://pubmed.ncbi.nlm.nih.gov/17523566
https://pubmed.ncbi.nlm.nih.gov/17523566
Publikováno v:
Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006..
Computed spectroscopytrade (CS) is a new approach to hyperspectral imaging recently introduced by the authors (R.T. Hoctor et al., 2006). The CS technique uses an adjustable optical array, which can be considered to be a form of delay-and-sum passive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::592714cba43bf8f87c81cce973a97910
https://doi.org/10.1109/sam.2006.1706105
https://doi.org/10.1109/sam.2006.1706105
Publikováno v:
ICASSP (5)
Assessment of the arterial pulse wave velocity (PWV) has long been an area of interest in physiology, and ultrasound has long been used to provide measurements for such assessments. Recently, new signal processing approaches for ultrasound data have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82a4b9b9afad8e3d619c9d800a1fba7b
https://doi.org/10.1109/icassp.2005.1416471
https://doi.org/10.1109/icassp.2005.1416471
Publikováno v:
IEEE Ultrasonics Symposium, 2005..
In this paper we evaluate an improved version of a signal processing approach recently proposed by the authors for estimating arterial pulse wave velocity (PWV) in a uniform arterial segment based on ultrasound measurements. The modifications are des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b1270b3684c1e29952acddce511bade
https://doi.org/10.1109/ultsym.2005.1602789
https://doi.org/10.1109/ultsym.2005.1602789