Results 101 to 110 of about 425,127 (302)
Error Analysis and Correction of ADCP Attitude Dynamics under Platform Swing Conditions
Journal of Marine Science and EngineeringThe Acoustic Doppler Current Profiler (ADCP) on a platform generates rotational linear velocity due to dynamic factors in attitude changes, leading to measurement errors in vessel and water flow velocities.
Zhaowen Sun, Shuai Yao
doaj +1 more source
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
A Novel DBN Feature Fusion Model for Cross-Corpus Speech Emotion Recognition
Journal of Electrical and Computer Engineering, 2016 The feature fusion from separate source is the current technical difficulties of cross-corpus speech emotion recognition. The purpose of this paper is to, based on Deep Belief Nets (DBN) in Deep Learning, use the emotional information hiding in speech ...
Zou Cairong +3 more
doaj +1 more source
Stochastic analysis of spectral broadening by a free turbulent shear layer [PDF]
The effect of the time-varying shear layer between a harmonic acoustic source and an observer on the frequency content of the observed sound is considered.
Hardin, J. C., Preisser, J. S.
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Deep Long Short-Term Memory Adaptive Beamforming Networks For Multichannel Robust Speech Recognition
, 2017 Far-field speech recognition in noisy and reverberant conditions remains a challenging problem despite recent deep learning breakthroughs. This problem is commonly addressed by acquiring a speech signal from multiple microphones and performing ...
Erdogan, Hakan +3 more
core +1 more source
Advanced Materials, EarlyView.Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine +5 more
wiley +1 more source
Design of Acoustic Signal for Positioning of Smart Devices. [PDF]
Sensors (Basel), 2023 Hromadova V, Brida P, Machaj J.
europepmc +1 more source
Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration
Advanced Materials, EarlyView.A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang +7 more
wiley +1 more source
Gated compressor, distortionless signal limiter [PDF]
, 1973 Comparator/multiplier arrangement is capable of limiting input power to voice coil so that desired maximum current level is never exceeded. Overall test system consists of signal source which produces frequency spectrum required for acoustic test, gated ...
Woodbury, R. C.
core +1 more source