Results 61 to 70 of about 17,458,924 (340)

Reverberation suppression algorithm for LS beamforming based on Wiener post-filter

Dianzi Jishu Yingyong, 2018
Reverberation causes speech signal time and frequency to blur, and speech is difficult to understand when serious. In order to improve the speech quality, this paper presents a least squares beamforming reverberation suppression algorithm with Wiener ...
Zhang Xiuzai, Wang Ting, Guo Yecai, Chen Xiaoyan   +3 more
doaj   +1 more source

Horizontal Correlation of Long-Range Bottom Reverberation in Shallow Sloping Seabed

Journal of Marine Science and Engineering, 2021
The performance of active sonar detection systems is seriously affected by the reverberation at the bottom of the waveguide in shallow water. In order to improve the performance of active sonar detection, it is necessary to understand the horizontal ...
Nansong Li, Minghui Zhang, Bo Gao
doaj   +1 more source

Interleukin‐6 as a Key Biomarker in Facioscapulohumeral Dystrophy: Evidence From Longitudinal Analyses

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy type 1 (FSHD1) is a progressive neuromuscular disorder with no approved treatments. Identifying reliable biomarkers is critical to monitor disease severity, activity, and progression. Interleukin‐6 (IL‐6) has been proposed as a candidate biomarker, but longitudinal validation is limited ...
Jonathan Pini, Emanuela Martinuzzi, Sandra Dhifallah, Abderhmane Slioui, Angela Puma, Luisa Villa, Michele Cavalli, Andra Ezaru, Jérémy Garcia, Manuela Gambella, Federico Torre, Luca Jacopo Pavan, Nicolas Glaichenhaus, Sabrina Sacconi   +13 more
wiley   +1 more source

Bayesian decay time estimation in a reverberation chamber for absorption measurements.

Journal of the Acoustical Society of America, 2019
This work investigates the use of the initial decay time to obtain the Sabine absorption coefficient from measurements conducted in a reverberation chamber.
Jamilla Balint, Florian Muralter, M. Nolan, C. Jeong   +3 more
semanticscholar   +1 more source

Multi-time-scale X-ray reverberation mapping of accreting black holes [PDF]

, 2018
Accreting black holes show characteristic reflection features in their X-ray spectrum, including an iron Kα line, resulting from hard X-ray continuum photons illuminating the accretion disc. The reverberation lag resulting from the path-length difference
G. Mastroserio, A. Ingram, M. Klis
semanticscholar   +1 more source

Subsea Broadband Reverberation Modeling and Simulation of High-speed Motion Sonar

水下无人系统学报, 2023
Subsea reverberation is the main source of interference when torpedoes detect targets in shallow waters where the sound velocity approximately satisfies the negative gradient distribution.
Jiayi YANG, Yunchuan YANG, Yongsheng LI, Lei SHI, Xiangfeng YANG   +4 more
doaj   +1 more source

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez, Corinne Pettigrew, Yuxin Zhu, Claire Anderson, Guray Erus, Christos Davatzikos, Michael Miller, Abhay Moghekar, Sungtaek Oh, Chan‐Hyun Na, Marilyn Albert, Paul Worley, Anja Soldan   +12 more
wiley   +1 more source

X-Ray/UVOIR Frequency-resolved Time Lag Analysis of Mrk 335 Reveals Accretion Disk Reprocessing

The Astrophysical Journal, 2023
UV and optical continuum reverberation mapping is a powerful tool for probing the accretion disk and inner broad-line region. However, recent reverberation mapping campaigns in the X-ray, UV, and optical have found lags consistently longer than those ...
Collin Lewin, Erin Kara, Edward M. Cackett, Dan Wilkins, Christos Panagiotou, Javier A. García, Jonathan Gelbord   +6 more
doaj   +1 more source

Diffusion Tractography Biomarker for Epilepsy Severity in Children With Drug‐Resistant Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To develop a novel deep‐learning model of clinical DWI tractography that can accurately predict the general assessment of epilepsy severity (GASE) in pediatric drug‐resistant epilepsy (DRE) and test if it can screen diverse neurocognitive impairments identified through neuropsychological assessments.
Jeong‐Won Jeong, Min‐Hee Lee, Hiroshi Uda, Yoon Ho Hwang, Michael Behen, Aimee Luat, Csaba Juhász, Eishi Asano   +7 more
wiley   +1 more source

ANALYSIS OF ACOUSTIC FIELD DIFFUSIVITY FOR THE DETERMINATION OF THE SOUND ABSORPTION COEFFICIENT IN A REVERBERATION CHAMBER

Anales (Asociación Física Argentina)
The Laboratory of Acoustics and Vibrations of INTI is fine-tuning a system for determining the sound absorption coefficient in a reverberation chamber using the interrupted noise method following the guidelines of IRAM 4065:2019. The study focuses on two
F. Fernandez Criscuolo, F.A. Serrano, L. del Valle Álvarez, J. García Skabar   +3 more
doaj   +1 more source