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761
Soft Metalens for Broadband Ultrasonic Focusing through Aberration Layers
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762
Evaluation of the influence of offshore wind farm noise on the fishes and dolphins in the Pearl River Estuary
Published 2025-01-01“…The operational noise from the wind farm was significantly lower in amplitude; therefore, our analysis primarily focused on the radiation of pile driving noise. Acoustic measurements taken at three different distances during pile driving events supported the development of an acoustic propagation model, which was then used to predict the sound exposure levels of pile driving pulses radiating from 5 m below the water surface. …”
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763
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764
Investigation of Low-Frequency Sound Radiation Characteristics and Active Control Mechanism of a Finite Cylindrical Shell
Published 2021-01-01“…In this paper, the radiation characteristics and active structural acoustic control of a submerged cylindrical shell at low frequencies are investigated. …”
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765
Molecular Association Studies on Polyvinyl Alcohol at Different Concentrations
Published 2018-01-01“…The variation of these acoustical parameters is explained in terms of solute-solvent interaction in a polymer solution.…”
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766
Transmissibilty-Based Operational Modal Analysis for Flight Flutter Testing Using Exogenous Inputs
Published 2012-01-01Get full text
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767
Optoacoustic lenses for lateral sub-optical resolution elasticity imaging
Published 2025-02-01“…Pump light illuminating the optoacoustic lens generates a focusing acoustic field, and Brillouin scattered probe light allows the acoustic field to be continuously monitored over time. …”
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768
Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers
Published 2014-01-01“…Echo and sound resonance in a conference room cause obscure speech and make listeners tired. Thus, the acoustical properties of a conference room are vitally important. …”
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769
Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters
Published 2021-01-01“…Different borehole diameters do not change the overall trend of acoustic emission evolution, but it will lead to different acoustic emission count characteristics of rock damage and failure, especially the maximum acoustic emission count characteristics and corresponding strain values. …”
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770
Research on Safety Risks of Speech Information
Published 2022-11-01“…It is shown that for speech information circulating in an acoustic form in a room, the main indicator of security is confidentiality. …”
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771
A New Technique to Identify Arbitrarily Shaped Noise Sources
Published 2006-01-01“…Acoustic intensity is one of the available tools for evaluating sound radiation from vibrating bodies. …”
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772
Ship Radiated Noise Recognition Using Resonance-Based Sparse Signal Decomposition
Published 2017-01-01Get full text
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773
Infrasound emitting at the start of a space rocket launch
Published 2023-06-01“… The analysis of acoustic radiation during the launch of a heavy space rocket is the main goal of this work. …”
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774
Prediction and Aerodynamic Analysis of Interior Noise and Wind Drag Generated by the Outside Rear-View Mirror for Commercial Vehicles
Published 2020-01-01“…The flow field is computed a priori with an incompressible flow solver. The acoustic field was then computed based on the information extracted from the CFD solver. …”
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775
Dual Mode Sensing with Low-Profile Piezoelectric Thin Wafer Sensors for Steel Bridge Crack Detection and Diagnosis
Published 2012-01-01“…After introducing the research background and piezoelectric sensing principles, PWAS crack detection in passive acoustic emission mode is first presented. Their acoustic emission detection capability has been validated through both static and compact tension fatigue tests. …”
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776
Effect of Modulation of the Inlet Velocity and Equivalence Ratio Gradients on the Stabilization of Stratified Axisymmetric Bluff-Body Flames
Published 2018-01-01“…An investigation of ultralean stratified, disk stabilized, propane flames operated with acoustic modulation of the inlet velocity and fuel-air mixture profiles is presented. …”
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777
Analytical Solution for the Sound Radiation Field of a Viscoelastically Supported Beam Traversed by a Moving Load
Published 2014-01-01“…Based on the Rayleigh integral approach, acoustic pressure distribution around the beam is obtained in the time domain. …”
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778
Prediction of Full-Frequency Deep-Sea Noise Based on Sea Surface Wind Speed and Real-Time Noise Data
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779
Simplified Target Strength Analysis Procedure of an Underwater Vehicle Considering Target Strength Absorbing Materials
Published 2025-01-01“…Among the design techniques to improve TS, absorbing materials attached to the surface of an underwater vehicle can play a key role by reducing the reflected and scattered acoustic waves. In this study, the acoustic performance of target strength absorbing materials (TSAMs) is first analyzed, and then the simplified procedure of TS analysis considering TSAMs is suggested. …”
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780
Analysis of Surface Sound Duct in the Northern Shelf of the South China Sea
Published 2018-01-01“…Furthermore, although the duct depth of a low-salinity SSD is usually less than 10 meters, it still can serve as an effective duct for acoustic propagation.…”
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