Results 51 to 60 of about 7,593 (278)

Noise-Canceling Office Chair with Multiple Reference Microphones

Applied Sciences, 2018
Office employees are exposed to acoustic noise, especially in an open office environment. Passive or active headsets sufficiently reduce the level of noise, but their long-time wear is uncomfortable.
László Sujbert, Attila Szarvas
doaj   +1 more source

Structured Sparsity Models for Multiparty Speech Recovery from Reverberant Recordings [PDF]

, 2012
We tackle the multi-party speech recovery problem through modeling the acoustic of the reverberant chambers. Our approach exploits structured sparsity models to perform room modeling and speech recovery.
Asaei, Afsaneh, Bourlard, Hervé, Cevher, Volkan, Golbabaee, Mohammad   +3 more
core   +2 more sources

Beamforming Techniques for Multichannel audio Signal Separation

, 2012
Beamforming is a signal processing technique. It has been studied in many areas such as radar, sonar, seismology and wireless communications, to name but a few.
Adel, Hidri, Alaqeeli, Abdulqadir, Hamid, Amiri, Souad, Meddeb   +3 more
core   +1 more source

Reverberation Mapping and the Physics of Active Galactic Nuclei [PDF]

, 1997
Reverberation-mapping campaigns have revolutionized our understanding of AGN. They have allowed the direct determination of the broad-line region size, enabled mapping of the gas distribution around the central black hole, and are starting to resolve the
A Robinson, BM Peterson, BM Peterson, BM Peterson, BM Peterson, BM Peterson, BM Peterson, C Done, C Winge, C Winge, D Alloin, D Alloin, D Maoz, D Maoz, D Maoz, D Maoz, DM Crenshaw, E Pérez, FP Pijpers, GA Reichert, GJ Ferland, GM Stirpe, H Netzer, H Netzer, H Netzer, HL Marshall, I Wanders, I Wanders, I Wanders, J Clavel, JH Krolik, JH Krolik, K Horne, KT Korista, M Dietrich, M-H Ulrich, R Edelson, R Warwick, RD Blandford, RJ White, TE Carone, Th Boller, W Romanishin, W Welsh   +43 more
core   +2 more sources

Quantifying the Impact of Ocrelizumab on Paramagnetic Rim Lesions in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Paramagnetic rim lesions (PRLs) are a subset of chronic active multiple sclerosis (MS) lesions marked by iron‐laden microglia and macrophages. Ocrelizumab, a monoclonal antibody targeting CD20+ B cells, suppresses acute MS activity, but its effect on PRLs remains unclear. In a longitudinal study of 29 ocrelizumab‐treated patients with at least
Kimberly H. Markowitz, Neha V. Safi, Iliana Pliska‐Bloch, Ulrike W. Kaunzner, Ha Luu, Yi Wang, Thanh D. Nguyen, Sandra Hurtado Rúa, Susan A. Gauthier   +8 more
wiley   +1 more source

An evaluation of intrusive instrumental intelligibility metrics

, 2018
Instrumental intelligibility metrics are commonly used as an alternative to listening tests. This paper evaluates 12 monaural intrusive intelligibility metrics: SII, HEGP, CSII, HASPI, NCM, QSTI, STOI, ESTOI, MIKNN, SIMI, SIIB, and $\text{sEPSM}^\text ...
Hendriks, Richard C., Kleijn, W. Bastiaan, Van Kuyk, Steven   +2 more
core   +1 more source

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

Arthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez, Pinar Ozge Avar‐Aydin, Kelly Rogers, Daniel J. Lovell, Jennifer Huggins, Alexei Grom, Hermine I. Brunner, Grant S. Schulert, Sheila T. Angeles‐Han, Mekibib Altaye, Amy Cassedy, Arthur B. Meyers, Tracy V. Ting   +12 more
wiley   +1 more source

Experimental Study on Use of Sound Absorption Treatment for Reduction of Environmental Sound Propagation and Reverberation in Staircases: A Case Study in Housing

Buildings, 2017
In recent years, many open-plan houses have been proposed not only for comfort reasons, but also as a place to engage in family life. However, in contrast to the fact that this kind of plan makes it easy for people to interact, the daily life household ...
Toru Matsuda, Takafumi Shimizu, Hikaru Suminaga, Kimie Yoshitani, Masaru Koike, Yasutomi Matsushima   +5 more
doaj   +1 more source

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

Advanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang, Ying Chen, Chenyang Shi, Progyateg Chakma, James J. De Yoreo, Chun‐Long Chen   +5 more
wiley   +1 more source

Linear frequency modulated reverberation suppression using time series models

Indonesian Journal of Electrical Engineering and Computer Science, 2022
When active radar and <span>sonar systems are used for target detection and tracking, boosting target detection, and tracking efficiency is the most important challenge in real-time reverberation. To eliminate reverberation when transmitting linear frequency modulated (LFM) signals, this study employs time series techniques such as autoregressive
Jami Venkata Suman, Mamidipaka Hema, Bandi Jagadeesh   +2 more
openaire   +1 more source