Results 81 to 90 of about 606,792 (311)

Excessive Reverberation Time for Organs? [PDF]

The Journal of the Acoustical Society of America, 1967
Whether or not organists and organ builders are demanding excessively reverberant environment is posed as a problem for consideration. The point is brought up that too long reverberation periods could result in an undesirable coloring of what is heard.
openaire   +2 more sources

Cerebral Amyloid Angiopathy Is Associated With Higher R2 Relaxation Rate: An MRI and Pathology Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cerebral amyloid angiopathy (CAA) involves β‐amyloid deposition in the walls of cortical and leptomeningeal small vessels. Transverse relaxation rate (R2) is a major source of contrast in MRI. This study tested the hypothesis that CAA is associated with R2, extracted the spatial pattern of CAA‐related R2 abnormalities, and evaluated ...
Md Tahmid Yasar, Arnold M. Evia, Mahir Tazwar, Sue E. Leurgans, David A. Bennett, Julie A. Schneider, Konstantinos Arfanakis   +6 more
wiley   +1 more source

Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water

Journal of Marine Science and Engineering
Deep-water reverberation caused by multiple reflections from the seafloor and sea surface can affect the performance of active sonars. To detect a moving target under reverberation conditions, a reverberation suppression method using multipath Doppler ...
Jincong Dun, Shihong Zhou, Yubo Qi, Changpeng Liu   +3 more
doaj   +1 more source

Spinal Cord Abnormalities in Early Pediatric Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Spinal cord lesions and atrophy in the cervical region are common in adult multiple sclerosis (MS) and correlate with disability. Whether similar abnormalities occur in pediatric MS patients is largely unknown. Clinical and MRI evaluations were performed in 38 pediatric MS patients and 13 healthy controls (HC).
Monica Margoni, Paola Valsasina, Paolo Preziosa, Martina Rubin, Mor Gueye, Lucia Moiola, Maria Assunta Rocca, Massimo Filippi   +7 more
wiley   +1 more source

Improving acoustical characteristics of a Gothic cathedral using simple public address system: A case study of Myeong-dong Cathedral in Seoul, Korea

Frontiers of Architectural Research, 2017
In the present study, improving acoustical characteristics of a Gothic cathedral (Myeong-dong Cathedral, which is the first built Western Gothic-style architecture in Korea) using simple public address system were investigated.
In Hwan Hwang, Won Gab Choi
doaj   +1 more source

Very High‐Frequency Oscillations in Mesial Temporal Lobe Epilepsy: Identifying the Epileptogenic Zone

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the reliability of very high‐frequency oscillations (VHFOs, 500–2000 Hz) as biomarkers in identifying the epileptogenic zone (EZ) in mesial temporal lobe epilepsy (MTLE) patients. Methods We reviewed 19 MTLE patients who underwent stereo‐electroencephalography‐guided radiofrequency thermocoagulation.
Stéphane Jean, Yihai Dai, Yan Cui, Donghuo Deng, Zhe Qian, Panashe Tevin Tagu, Weitao Chen, Weihong Liu, Xiaoqiang Wei, Xinrong Fang, Shiwei Song   +10 more
wiley   +1 more source

Speech Dereverberation in the STFT Domain [PDF]

arXiv, 2015
Reverberation is damaging to both the quality and the intelligibility of a speech signal. We propose a novel single-channel method of dereverberation based on a linear filter in the Short Time Fourier Transform domain. Each enhanced frame is constructed from a linear sum of nearby frames based on the channel impulse response.
arxiv  

Deep Convolutional Neural Network-based Inverse Filtering Approach for Speech De-reverberation [PDF]

arXiv, 2020
In this paper, we introduce a spectral-domain inverse filtering approach for single-channel speech de-reverberation using deep convolutional neural network (CNN). The main goal is to better handle realistic reverberant conditions where the room impulse response (RIR) filter is longer than the short-time Fourier transform (STFT) analysis window. To this
arxiv  

Influence of Surface Scattering on Auditorium Acoustic Parameters

Buildings
Surface scattering greatly impacts and improves the acoustic quality of an auditorium, affecting properties such as the reverberation time, early decay time, definition, and sound strength.
Xiangdong Zhu, Guoqiang Xu, Jian Kang, Xiaoyan Xue, Yu Hao   +4 more
doaj   +1 more source

Barriers and Facilitators for Implementing Resilience Coaching for Youth With Chronic Musculoskeletal Pain: Pediatric Rheumatologists’ Perspectives

Arthritis Care &Research, EarlyView.
Objective Promoting Resilience in Stress Management (PRISM) is a resilience coaching program designed for adolescents with chronic illness. We aimed to examine the perceived feasibility, acceptability, and appropriateness of PRISM among pediatric rheumatologists treating adolescents with chronic musculoskeletal pain and obtain recommendations for ...
Sabrina Gmuca, Anyun Chatterjee, Mackenzie McGill, Nellie Butler, Katherine S. Kellom, Jami F. Young, Tonya M. Palermo, Pamela F. Weiss, Abby R. Rosenberg, Peter F. Cronholm   +9 more
wiley   +1 more source