Results 21 to 30 of about 5,165,159 (345)
Liner Impedance Eduction Under Shear Grazing Flow at a High Sound Pressure Level
AIAA Journal, 2020 This paper investigates the combined effects of high sound pressure level and grazing flow on impedance eduction for acoustical liners.
Victor Lafont +4 more
semanticscholar +1 more source
The vibroacoustical indexes of the internal combustion engine when the mass of the details of the crankshaft device varies [PDF]
Transport, 2002 The vibroacoustical indexes of the internal combustion engine retrogress when the mass of the details of the crankshaft device increases. The blatancy of sound pressure, oscillation speed, the whole engine increase very fractionally when mass increases ...
E. Juodzevičius, V. Valiūnas
doaj +3 more sources
Force and Sound Pressure Sensors Used for Modeling the Impact of the Firearm with a Suppressor
Applied Sciences, 2020 In this paper, a mathematical model for projectiles shooting in any direction based on sensors distributed stereoscopically is put forward. It is based on the characteristics of a shock wave around a supersonic projectile and acoustical localization ...
Jaroslaw Selech +7 more
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Acoustic analysis of selected sacred buildings in Szczecin
Budownictwo i Architektura, 2021 The aim of this study was to assess acoustically selected sacred buildings located in Szczecin. The research part contains the research methodology and the results obtained. The research was carried out using two methods.
Agata Stolarska +2 more
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Noise from mechanical ventilation systems in residential buildings [PDF]
E3S Web of Conferences, 2023 Modern people spend up to 90% of their time indoors. Therefore, the research aimed to identify noise sources from engineering equipment, and developing recommendations for their elimination was an urgent scientific task.
Abramkina Darya
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Noise Mapping, 2022 The paper introduces a framework for comprehensive simulation workflow of the built environment using the Pachyderm Acoustics plugin inside the Grasshopper 3D interface. It aims to model the shared relationship between residential buildings and hardscape.
Kamel Tarek M.
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Sound Pressure Correlates of the Second Heart Sound [PDF]
Circulation, 1974 The sound pressure correlates of the second heart sound were studied in 22 patients during diagnostic cardiac catheterization. Simultaneous right ventricular and pulmonary artery pressures were recorded with equisensitive catheter-tip micromanometers together with the external phonocardiogram and ECG. In 12 patients having normal pulmonary
J A, Shaver +6 more
openaire +2 more sources
Diagnosis of Noise Inside Neonatal Incubators under Free-Field Conditions
Acoustics, 2023 The study aims to diagnose the sound pressure levels inside incubators in a controlled environment under free-field conditions. The tests were carried out in a semi-anechoic room under the standard UNE-EN ISO 3745:2012/A1:2018 in three different ...
Francisco Fernández-Zacarías +3 more
doaj +1 more source
Evaluation of the Oscillation Velocity in the Neck of the Helmholtz Resonator in Nonlinear Regimes
Acoustics, 2022 Methods for measuring the acoustic characteristics of orifices have been reviewed. Comparison of three methods for evaluating of oscillation velocity in the neck of the Helmholtz resonator are presented.
Alexandr Komkin +2 more
doaj +1 more source
Journal of Chemical and Engineering Data, 2020 We present experimental measurements of the density, speed of sound, vapor pressure, and dew-point pressure of cis-1,1,1,4,4,4-hexafluorobutene, which is also known as R-1336mzz(Z). Vapor pressures were measured at temperatures from 330 to 440 K; the dew-
M. McLinden, R. Akasaka
semanticscholar +1 more source