Results 101 to 110 of about 1,782,949 (343)
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
doaj +1 more source
, 1967 Derivation of equations describing nonlinear acoustics with emphasis on effect of first, second and bulk viscosity ...
Bracco, F. V.
core
A Low‐Cost, Handheld Optical Stiffness Sensor for Minimally Invasive Surgery
Advanced Robotics Research, EarlyView.A novel handheld stiffness sensor is presented for real‐time tissue stiffness characterization. By simultaneously sensing contact force and tissue deformation, the device enables accurate stiffness quantification without requiring precise manual control. This approach offers a promising solution for intraoperative tumor detection and minimally invasive
Qianyu Ma +4 more
wiley +1 more source
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
doaj
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
doaj +1 more source
Global and Koopman modes analysis of sound generation in mixing layers [PDF]
, 2013 It is now well established that linear and nonlinear instability waves play a significant role in the noise generation process for a wide variety of shear flows such as jets or mixing layers.
X. Gloerfelt +7 more
core +1 more source
Advanced Science, EarlyView.This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen +7 more
wiley +1 more source
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
doaj +1 more source
Ultrasound‐Actuated Gene Editing in Human Kidney Organoids
Advanced Science, EarlyView.Peptide‐stabilized nanoemulsions enable spatially controlled, ultrasound‐triggered delivery of gene‐editing proteins deep within human kidney organoid tissues. Focused acoustic pulses drive droplet vaporization, propelling cargo into target renal cells while preserving native tissue microarchitecture. This non‐viral platform improves both the depth and
Michael A. Miller +6 more
wiley +1 more source
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
doaj