Results 101 to 110 of about 60,931 (342)

Reverberation-Time Meter [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1939
A portable direct-reading apparatus for the measurement of rate of decay of sound will be described.
openaire   +2 more sources

An Engineered Recombinant Spider Silk Protein Providing Disulfide‐Locked Control over Self‐Assembly and Fiber Formation

open access: yesAdvanced Functional Materials, EarlyView.
Using atomic structure and local stability information, recombinant aciniform spider silk proteins are rationally engineered to incorporate a chemically switchable disulfide bond to prevent fiber formation. When disulfide‐locked, these proteins cannot form continuous fibers, whereas the unlocked (reduced) state can.
Anamika Sulekha   +7 more
wiley   +1 more source

Comparison Between Reverberation-Ray Matrix, Reverberation-Transfer Matrix, and Generalized Reverberation Matrix [PDF]

open access: yes, 2010
In conclusion, we present the formulations of the reverberation-ray matrix, reverberationtransfer matrix, and generalized reverberation matrix clearly. Their comparison shows that the application of the RRM formulation to the receiving sublayer and the SM and TM formulations to the other sublayers in the GRM and RTM methods yields a generalized ...
openaire   +3 more sources

Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level

open access: yesAdvanced Functional Materials, EarlyView.
High‐resolution, multi‐frequency continuous wave, and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy uncover the intricate Na ion storage mechanisms in hard carbon. This study reveals the coexistence of Na ion intercalation and solvent co‐intercalation, alongside a subsequent transition of Na ions from ionic to quasi‐metallic to metallic ...
Qingbing Xia   +5 more
wiley   +1 more source

Modulation-Domain Kalman Filtering for Monaural Blind Speech Denoising and Dereverberation [PDF]

open access: yesarXiv, 2018
We describe a monaural speech enhancement algorithm based on modulation-domain Kalman filtering to blindly track the time-frequency log-magnitude spectra of speech and reverberation. We propose an adaptive algorithm that performs blind joint denoising and dereverberation, while accounting for the inter-frame speech dynamics, by estimating the ...
arxiv  

Supramolecular Zwitterionic Hydrogels for Information Encryption, Soft Electronics and Energy Storage at Icy Temperature

open access: yesAdvanced Functional Materials, EarlyView.
A series of ACHPES‐based hydrogels are developed and realizing multiple functions like anti‐fouling properties, alkali‐induced color/fluorescence‐changing ability and strain sensing. Furthermore, the hydrogels show excellent anti‐freezing performance, whose optical, mechanical and electrical properties remain stable at −47.3 °C.
Gaopeng Wang   +9 more
wiley   +1 more source

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

open access: yesarXiv, 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  

Unlocking the Gates: A Novel Diagnostic Molecule for Quantifying Efflux Levels in Gram‐Positive Bacteria

open access: yesAdvanced Healthcare Materials, EarlyView.
Efflux‐mediated resistance compromises antibiotic efficacy, yet rapid detection remains elusive. This study presents a novel phenazinium‐based diagnostic molecule for quantifying bacterial efflux levels in Gram‐positive pathogens. The optimized compound enables precise, real‐time efflux assessment using fluorescence and colorimetric techniques ...
Mrunal Patil   +15 more
wiley   +1 more source

Auditory, Cognitive, and Linguistic Factors Predict Speech Recognition in Adverse Listening Conditions for Children With Hearing Loss

open access: yesFrontiers in Neuroscience, 2019
Objectives: Children with hearing loss listen and learn in environments with noise and reverberation, but perform more poorly in noise and reverberation than children with normal hearing.
Ryan W. McCreery   +4 more
doaj   +1 more source

Nonnative implicit phonetic training in multiple reverberant environments. [PDF]

open access: yes, 2019
Speech intelligibility is adversely affected by reverberation, particularly when listening to a foreign language. However, little is known about how phonetic learning is affected by room acoustics.
Kopčo, Norbert   +2 more
core  

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