Results 31 to 40 of about 47,481 (322)

Linear Frequency Modulated Reverberation Suppression Using Non-Negative Matrix Factorization Methods, Dechirping Transformation and Modulo Operation

IEEE Access, 2020
In this study, we propose a reverberation suppression algorithm for linear frequency-modulated (LFM) pulse sonar systems using a non-negative matrix factorization (NMF) method.
Geunhwan Kim, Kyunkyung Lee, Seokjin Lee
doaj   +1 more source

The First Swift Intensive AGN Accretion Disk Reverberation Mapping Survey [PDF]

Astrophysical Journal, 2018
Swift intensive accretion disk reverberation mapping of four AGN yielded light curves sampled ∼200–350 times in 0.3–10 keV X-ray and six UV/optical bands.
R. Edelson, J. Gelbord, E. Cackett, B. Peterson, B. Peterson, K. Horne, A. Barth, D. Starkey, M. Bentz, W. Brandt, M. Goad, M. D. Joner, K. Korista, H. Netzer, K. Page, P. Uttley, S. Vaughan, A. Breeveld, S. B. Cenko, S. B. Cenko, C. Done, P. Evans, M. Fausnaugh, G. Ferland, D. González-Buitrago, J. Gropp, D. Grupe, J. Kaastra, J. Kaastra, J. Kennea, G. Kriss, S. Mathur, M. Mehdipour, D. Mudd, J. Nousek, T. Schmidt, M. Vestergaard, M. Vestergaard, C. Villforth   +38 more
semanticscholar   +1 more source

Effects of reverberation on speech intelligibility in noise for hearing-impaired listeners

Royal Society Open Science, 2022
Reverberation can have a strong detrimental effect on speech intelligibility in noise. Two main monaural effects were studied here: the temporal smearing of the target speech, which makes the speech less understandable, and the temporal smearing of the ...
Raphael Cueille, Mathieu Lavandier, Nicolas Grimault   +2 more
doaj   +1 more source

The Sloan Digital Sky Survey Reverberation Mapping Project: Sample Characterization [PDF]

Astrophysical Journal Supplement Series, 2018
We present a detailed characterization of the 849 broad-line quasars from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. Our quasar sample covers a redshift range of 0.1 < z < 4.5 and is flux-limited to iPSF < 21.7 without any ...
Yue Shen, P. Hall, K. Horne, G. Zhu, I. McGreer, T. Simm, J. Trump, K. Kinemuchi, W. Brandt, P. Green, C. Grier, Hengxiao Guo, L. Ho, Y. Homayouni, Linhua Jiang, J. I. Li, E. Morganson, P. Petitjean, G. Richards, D. Schneider, D. Starkey, Shu Wang, K. Chambers, N. Kaiser, R. Kudritzki, E. Magnier, C. Waters   +26 more
semanticscholar   +1 more source

Reverberation Measurements of the Inner Radii of the Dust Tori in Quasars [PDF]

Astrophysical Journal, 2019
We present the results of a dust-reverberation survey of quasars at redshifts z < 0.6. We found a delayed response of the K-band flux variation after the optical flux variation in 25 out of 31 targets, and obtained the lag time between them for 22 ...
T. Minezaki, Y. Yoshii, Yukiyasu Kobayashi, S. Sugawara, Y. Sakata, K. Enya, S. Koshida, H. Tomita, M. Suganuma, T. Aoki, B. Peterson   +10 more
semanticscholar   +1 more source

The Sloan Digital Sky Survey Reverberation Mapping Project: Hα and Hβ Reverberation Measurements from First-year Spectroscopy and Photometry [PDF]

, 2017
We present reverberation mapping results from the first year of combined spectroscopic and photometric observations of the Sloan Digital Sky Survey Reverberation Mapping Project.
C. Grier, J. Trump, Yue Shen, K. Horne, K. Kinemuchi, I. McGreer, D. Starkey, W. Brandt, P. Hall, C. Kochanek, Yuguang Chen, K. Denney, J. Greene, L. Ho, Y. Homayouni, J. I. Li, L. Pei, B. Peterson, P. Petitjean, D. Schneider, Mouyuan Sun, Y. Alsayyad, D. Bizyaev, J. Brinkmann, J. Brownstein, K. Bundy, K. Dawson, S. Eftekharzadeh, J. Fernández-Trincado, Yang Gao, T. Hutchinson, S. Jia, Linhua Jiang, D. Oravetz, K. Pan, I. Pâris, K. Ponder, C. Peters, Jesse Rogerson, A. Simmons, Robyn N. Smith, Ran Wang   +41 more
semanticscholar   +1 more source

Perceptual Similarities between Artificial Reverberation Algorithms and Real Reverberation

Applied Sciences, 2023
This paper presents a study evaluating the perceptual similarity between artificial reverberation algorithms and acoustic measurements. An online headphone-based listening test was conducted and data were collected from 20 expert assessors.
Huan Mi, Gavin Kearney, Helena Daffern
doaj   +1 more source

Can Reverberation-measured Quasars Be Used for Cosmology? [PDF]

Astrophysical Journal, 2019
Quasars have been proposed as a new class of standard candles analogous to supernovae, since their large redshift range and high luminosities make them excellent candidates.
M. Martínez–Aldama, B. Czerny, Damian Kawka, V. Karas, S. Panda, M. Zajaček, P. Zycki   +6 more
semanticscholar   +1 more source

WFUMB position paper on reverberation artefacts in lung ultrasound: B-lines or comet-tails?

Medical ultrasonography, 2020
The analysis of vertical reverberation artefacts is an essential component of the differential diagnosis in pulmonary ultra-sound. Traditionally, they are often, but not exclusively, called B-line artefacts (BLA) and/or comet tail artefacts (CTA), but ...
G. Mathis, R. Horn, S. Morf, H. Prosch, S. Rovida, G. Soldati, B. Hoffmann, M. Blaivas, C. Dietrich   +8 more
semanticscholar   +1 more source

Determination of the Reverberation Time Using the Measurement of Sound Decay Curves

Applied Sciences, 2023
In the measurements of reverberation time, measurement methods of different accuracy are used depending on the room. For ordinary rooms, the measurements are made using the interrupted noise method, which consists of determining the decay curve after ...
Artur Nowoświat
doaj   +1 more source