acoustic pressure
Acoustic pressure and particle motion thresholds in six sciaenid fishes
... to acoustic pressure measurements on five ...the pressure and particle acceleration thresholds of six sciaenid fishes commonly found in Chesapeake Bay, eastern USA: weakfish ( Cynoscion regalis ), ...
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Application of Vibration and Acoustic Pressure Monitoring Techniques for Detection of Gear Failures
... Abstract — Manufacturing industry drives the world. Every manufacturing industry is having number of machines and gearboxes, which are used for power conversion, speed, reduction and torque amplification, can control ...
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Comparison of metrics for the evaluation of similarity in acoustic pressure signals
... Time-frequency SSIM (WSSIM). Hines et al. [8], applied the SSIM to short- time Fourier transforms of acoustic signals, where the image ‘intensity’ was the modulus of the Fourier coefficients. In this work, a ...
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PubMedCentral-PMC5270505.pdf
... Activation Pressure Matching (APM) is to deliver pulses with the same rarefactional pressure to all activation locations in order to limit the delivered ...in pressure due to the elevational lens, ...
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Aeroacoustic Noise Source Identification Using Irregularly Sampled LDV Measurements Coupled with Beamforming (AIAA 2011 2719)
... In order to apply the coherence beamforming algorithm, the reference signal was attained by the LDV volume located in the near wake of the upstream rods as shown by the red dot in figure 11(a). Figure 14 presents the step ...
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Two-stage Looped-tube Thermoacoustic Cooler –
... the acoustic drivers. The acoustic pressure in front of the moving pistons of the acoustic drivers is measured with a dynamic pressure transducer (PCB Model 106B50), and the ...
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Coupling of a granular chain to an acoustic medium: Sensitivity analyses of the propagation of ultrasonic pulse trains
... resulting acoustic pressure radiated by the front face of the Sigradur® K cylinder was extracted at the post-processing stage, at 1 mm into the medium and along the axis of symmetry of the ...each ...
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Reconfigurable particle separation by dynamic acoustic fields in microfluidic devices
... surface acoustic standing wave for separating ...the acoustic contrast factor and the custom made mi- cro-particle move from node to antinode of the acoustic ...the acoustic standing wave and ...
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Design, characterization and evaluation of a laser-guided focused ultrasound system for preclinical investigations
... mm. Pressure field simulations were performed to demonstrate the effects of the coupling cone and the sealing membrane, as well as for determining the location of the focus and acoustic transmission across ...
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Modelling the Sound of a Golf Ball Impacting a Titanium Plate
... A model was developed to predict the sound of a ball impacting a USGA CoR plate, as a first step towards simulating the acoustics of a ball/driver impact. A ball was dropped from 2.5 m onto a free-free plate with the ...
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Vol 47, No 2 (2017)
... measuring acoustic pressure levels on a measuring surface that includes a noise source, under conditions close to those of a free field, near one or more reflecting planes, in order to calculate the ...
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NUMERICAL ANALYSIS OF ELECTRO-HYDRAULIC FORMING PROCESS, BY USING VOLUMEACCELERATION LOADING
... Electro-hydraulic forming is one of the unique processes of high-velocity forming. In this process, the electrical energy is converted into the mechanical energy in the form of shock waves within a liquid medium. This ...
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Finite Element Analysis for Acoustic Wave Transmission in Ultrasonic Tomography Application
... the acoustic pressure wave propagation behavior in water-crude oil two phase liquid flow in a ...the acoustic impedance of the phases ...of acoustic wave propagation behavior in a ...
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Assessment of Indoor and Outdoor Noise Pollution at a University Hospital Based on Acoustic Measurements and Noise Mapping
... The acoustic maps clearly show the existence of noise pollution mainly due to the traffic of light and heavy vehicles. The heavy vehicles counted during the sound pres- sure measurements were predominantly buses. ...
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Sonochemical Reactor for Water Treatment in the Food Industry
... The main factor of sonochemical reactions is the cavitation, at which in a fluid is generated a huge pulses of pressure from the cavitation bubbles. They in a phase of contraction is compressed to nanometer ...
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Feasibility of Non-contact Manipulation of a Small Object using Standing Wave Acoustic Levitation.
... using acoustic levitation of light objects such as Styrofoam balls in ...of acoustic radiation forces and their manipulable parameters were studied, and control schemes for precise manipulation were ...of ...
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Population level consequences of seismic surveys on fishes : an interdisciplinary challenge
... water. Acoustic propa- gationintheoceandependsonthelocalenvironment,including physicaloceanography(temperatureandsalinity),bathymetry,sea surfaceroughness,bubblesandsedimentfeatures(Brekhovskikh, ...the ...
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SPH Simulation of Acoustic Waves: Effects of Frequency, Sound Pressure, and Particle Spacing
... (3) Decreasing the particle spacing in the computation reduces the numerical error, while simultaneously increasing the CPU time. The trend of both changes is close to linear on a logarithmic scale. The Courant number ...
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Nondestructive Evaluation Of Corrosion Damage In Reinforced Concrete Aged Slab Specimen
... In Figure 5.38, the hoop stress vs. hoop strain curves were plotted. The strains were obtained with the DIC technique. All the samples follow approximately the same curve up to 400 µε and then separate. Clearly, the ...
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Piezoelectric Acoustic Sensor for Energy Harvesting
... the acoustic Sensor technology fully integrated acoustic sensor that combines high sensitivity, wide frequency range and low cost of batch processed miniaturized silicon components ...the acoustic ...
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