Zobrazeno 1 - 10
of 608
pro vyhledávání: '"Fraser, T. A."'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Freehand optical ultrasound (OpUS) imaging is an emerging ultrasound imaging paradigm that uses an array of fibre-optic, photoacoustic ultrasound sources and a single fibre-optic ultrasound detector to perform ultrasound imaging without the
Externí odkaz:
https://doaj.org/article/26fc060505634ca2ba59110ab93f1367
Autor:
Woodfinden, Alex, Percival, Will J., Nadathur, Seshadri, Winther, Hans A., Fraser, T. S., Massara, Elena, Paillas, Enrique, Radinović, Slađana
We present the cosmological implications of measurements of void-galaxy and galaxy-galaxy clustering from the Sloan Digital Sky Survey (SDSS) Main Galaxy Sample (MGS), Baryon Oscillation Spectroscopic Survey (BOSS), and extended BOSS (eBOSS) luminous
Externí odkaz:
http://arxiv.org/abs/2303.06143
Autor:
Fraser T. Watt, Vivek Muthurangu, Jennifer Steeden, Eleanor C. Mackle, Adrien E. Desjardins, Edward Z. Zhang, Paul C. Beard, Erwin J. Alles
Publikováno v:
APL Photonics, Vol 9, Iss 9, Pp 096103-096103-11 (2024)
Optical ultrasound (OpUS) imaging is an ultrasound modality that utilizes fiber-optic ultrasound sources and detectors to perform pulse-echo ultrasound imaging. These probes can be constructed entirely from glass optical fibers and plastic components
Externí odkaz:
https://doaj.org/article/63b27646ed3f4c76a134cd15d5cc5334
Autor:
Watt, Fraser T.1,2 fraser.watt.20@ucl.ac.uk, Mackle, Eleanor C.1,2, Zhang, Edward Z.1,2, Beard, Paul C.1,2, Alles, Erwin J.1,2
Publikováno v:
Scientific Reports. 8/13/2024, Vol. 14 Issue 1, p1-11. 11p.
Akademický článek
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A fundamental pursuit of microwave metrology is the determination of the characteristic impedance profile of microwave systems. Among other methods, this can be practically achieved by means of time-domain reflectometry (TDR) that measures the reflec
Externí odkaz:
http://arxiv.org/abs/1804.04756
Autor:
Watson, Fraser T., Beck, Christian, Penn, Matthew J., Tritschler, Alexandra, Pillet, Valentin Martinez, Livingston, William C.
In this article we describe a recent effort to cross-calibrate data from an infrared detector at the McMath-Pierce Solar Telescope and the Facility InfraRed Spectropolarimeter (FIRS) at the Dunn Solar Telescope. A synoptic observation program at the
Externí odkaz:
http://arxiv.org/abs/1511.07315
Publikováno v:
The Astrophysical Journal, Volume 787, Issue 1, article id. 22, 9 pp. (2014)
The recent solar minimum and rise phase of solar cycle 24 have been unlike any period since the early 1900s. This article examines some of the properties of sunspot umbrae over the last 17 years with three different instruments on the ground and in s
Externí odkaz:
http://arxiv.org/abs/1511.07300
Autor:
Muñoz-Jaramillo, Andrés, Senkpeil, Ryan R., Windmueller, John C., Amouzou, Ernest C., Longcope, Dana W., Tlatov, Andrey G., Nagovitsyn, Yury A., Pevtsov, Alexei A., Chapman, Gary A., Cookson, Angela M., Yeates, Anthony R., Watson, Fraser T., Balmaceda, Laura A., DeLuca, Edward E., Martens, Petrus C. H.
Publikováno v:
The Astrophysical Journal, Volume 800, Issue 1, Page 48, (2015)
In this work we take advantage of eleven different sunspot group, sunspot, and active region databases to characterize the area and flux distributions of photospheric magnetic structures. We find that, when taken separately, different databases are b
Externí odkaz:
http://arxiv.org/abs/1410.6281
Autor:
Verbeeck, Cis, Higgins, Paul A., Colak, Tufan, Watson, Fraser T., Delouille, Veronique, Mampaey, Benjamin, Qahwaji, Rami
Since the Solar Dynamics Observatory (SDO) began recording ~ 1 TB of data per day, there has been an increased need to automatically extract features and events for further analysis. Here we compare the overall detection performance, correlations bet
Externí odkaz:
http://arxiv.org/abs/1109.0473