Results 31 to 40 of about 4,736 (119)
Sound pressure-dependent acoustic absorption by perforated rigid-frame porous materials
Acta AcusticaPorous materials are one of the most common classes of sound absorbers for acoustic treatments. However, thin layers of these classical materials are not efficient at absorbing low-frequency sound waves, which is a practical shortcoming.
Cavalieri Théo, Van Damme Bart
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Determination of Radiation Pressure in Acoustic Levitation by Optical Acoustic-Field Measurement
IEEE Access, 2019 Pulsed digital holography was used to determine the acoustic radiation force on objects suspended in a single-axis acoustic levitator. Digital holography provided both the object images and the optical phase data required to determine the instantaneous ...
James J. Scire
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Sensors, 2017 This work deals with a theoretical analysis about the possibility of using linear and nonlinear acoustic properties to modify ultrasound by adding gas bubbles of determined sizes in a liquid.
Christian Vanhille
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Archives of Acoustics, 2018 Nonlinear excitation of slow modes by the planar magnetosonic perturbations in a plasma is discussed. Plasma is an open system due to radiation and external heating.
Anna PERELOMOVA
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5th EAA International Symposium on Hydroacoustics
Archives of Acoustics, 2014 The 5th EAA International Symposium on Hydroacoustics together with domestic XXII Symposium on Hydroacoustics took place in Puck at the Sport and Training Centre DELFIN, May 16–19, 2005.
Editorial Board Archives of Acoustics
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Nonlinear acoustics in brass instruments using 2D complex modal bases
Acta AcusticaThe modelling approach presented here aims at developing accurate, yet computationally efficient, numerical models of brass instrument resonators including nonlinear propagation, viscothermal losses and radiation effects in 2D axisymmetric domains.
Soares Filipe +4 more
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Studies of Nonlinear Sound Dynamics in Fluids Based on the Caloric Equation of State
Archives of Acoustics, 2013 The sound speed and parameters of nonlinearity B/A, C/A in a fluid are expressed in terms of coefficients in the Taylor series expansion of an excess internal energy, in powers of excess pressure and density. That allows to conclude about features of the
Anna PERELOMOVA, Paweł WOJDA
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Simulating the Nonlinear Propagation Effects in Biological Materials Using Westervelt Equation [PDF]
Assiut University Journal of Multidisciplinary Scientific ResearchNonlinear acoustics has been a topic of research in the last years. Driven by a wide range and a large number of highly relevant industrial and medical applications, this area has expanded enormously in the last few decades. Numerical modeling of medical
Esraa rabie +2 more
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Unsteady Characteristics of Nonlinear Pressure Loss in a Flow through a Restrictor
Journal of Fluid Science and Technology, 2008 To elucidate the unsteady characteristics of a nonlinear pressure loss generated in a restricted flow, pressure drops across and flow rates through an orifice were precisely measured in sinusoidally oscillating oil flows.
Seiichi WASHIO +2 more
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Dependence of harmonic generation on primary wave pressure distribution
Archives of Acoustics, 2014 The aim of this paper is theoretical analysis of harmonic generation during finite amplitude wave propagation. The paper presents mathematical model and some results of numerical calculations.
Anna Baranowska
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