Πλοήγηση ανά Θέμα "Resonance"
Αποτελέσματα 1-7 από 7
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The effect of resonance on transient microbubble acoustic response: Experimental observations and numerical simulations
(2018)A large number of acoustic signals from single lipid-shelled Definity® (Lantheus Medical Imaging, N. Billerica, MA) microbubbles have been measured using a calibrated microacoustic system, and a unique transient characteristic ... -
The effect of resonance on transient microbubble response; Response; experimental and theoretical observations
(2012)Nonlinear microbubble oscillations can be exploited by signal processing to provide contrast enhancement in ultrasound imaging. High-speed optical investigations have established that microbubbles resonate in-vitro, but ... -
The fate of resonant and off-resonant microbubble signals in response toconsecutive imaging pulses
(2010)The study of single microbubble (MB) acoustics has relevance to signal andimage processing of ultrasound (US) contrast imaging. The aim of this work is tostudy the effect of consecutive pulses on MB response. RF backscatter ... -
Nonlinear radial oscillations of encapsulated microbubbles subject to ultrasound: The effect of membrane constitutive law
(2008)The nonlinear radial oscillations of bubbles that are encapsulated in an elastic shell are investigated numerically subject to three different constitutive laws describing the viscoelastic properties of the shell: the ... -
Nonlinear resonance in viscous films on inclined wavy planes
(2009)We study nonlinear resonance in viscous gravity-driven films flowing over undulated substrates. Numerical solution of the full, steady Navier-Stokes equations is used to follow the emergence of the first few free-surface ... -
Prediction of collapse of the osteonecrosis of the hip by determining location and size of the lesion: A 2 to 17 years study
(2010)Osteonecrosis of the femoral head is a disease responsible for a large number of arthroplasties in young and active patients in the western world. Prediction of outcome of the disease remains a difficult task. The purpose ... -
Prognosis of collapse of the osteonecrosis of the femoral head for patients treated with a tantalum rod by determining location and size of the lesion
(2009)The purpose of this study is to predict the osteonecrosis of the femoral head by examining the location and size of the lesion of the femoral head. A triangulation approximation algorithm is used for the computation of the ...