There is always a range or distribution m relaxation times rather than a single value This range in acoustic (or ultrasonic) relaxation times can be understood using the concept of the bulk viscosity coefficient of a liquid, acoustic Cole-Cole plots and a distribution parameter, the ultrasonic relaxation time is found to be a function of ultrasonic velocity, absorption and the distribution parameter A suitable expression is obtained for the relaxation time which is evaluated at various frequencies for various values of the distribution parameter, These variations are tabulated and discussed
A mathematical model is developed and presented to capture the effect of viscoelastic nature of a ma...
The traditional volume viscosity, Stokes' hypothesis, and acoustical relaxation are reviewed. The lo...
Ultrasonic velocities, densities, and viscosities have been measured for the solution of polyvinyl a...
In this study, a mathematical model is developed for investigating the discrete sound propagation in...
The ultrasonic attenuation in liquid nonanoic acid (pelargonic) is measured between 16 and 55°C. A s...
The relaxation of gas and vapour cavitation in liquids subjected to ultrasonic waves. It is shown t...
In this paper the experimental values of acoustical parameters determined from ultrasonic spectrosco...
Dans un premier temps, nous rappelons l'expression du coefficient d'absorption ultrasonore lié à un ...
On présente une théorie sur l'absorption et la dispersion d'une onde ultrasonore dans un liquide fai...
This work extends the quasi-equilibrium relaxation theory of sound absorption in liquids to the cas...
This paper describes how molecular relaxation can be measured using ultrasound. The velocity and abs...
After a very brief review on the dispersion of acoustical and thermal properties of viscous liquids ...
In our previous work [Sens. Actuator B: Chem. 203 1-8 (2014)], a ultrasonic sensor has been proposed...
We have measured the ultrasonic velocity and attenuation in supercooled water to - 26°C. We have ded...
One of the main mechanisms of ultrasonic attenuation in molecular gases and liquids is due to a slow...
A mathematical model is developed and presented to capture the effect of viscoelastic nature of a ma...
The traditional volume viscosity, Stokes' hypothesis, and acoustical relaxation are reviewed. The lo...
Ultrasonic velocities, densities, and viscosities have been measured for the solution of polyvinyl a...
In this study, a mathematical model is developed for investigating the discrete sound propagation in...
The ultrasonic attenuation in liquid nonanoic acid (pelargonic) is measured between 16 and 55°C. A s...
The relaxation of gas and vapour cavitation in liquids subjected to ultrasonic waves. It is shown t...
In this paper the experimental values of acoustical parameters determined from ultrasonic spectrosco...
Dans un premier temps, nous rappelons l'expression du coefficient d'absorption ultrasonore lié à un ...
On présente une théorie sur l'absorption et la dispersion d'une onde ultrasonore dans un liquide fai...
This work extends the quasi-equilibrium relaxation theory of sound absorption in liquids to the cas...
This paper describes how molecular relaxation can be measured using ultrasound. The velocity and abs...
After a very brief review on the dispersion of acoustical and thermal properties of viscous liquids ...
In our previous work [Sens. Actuator B: Chem. 203 1-8 (2014)], a ultrasonic sensor has been proposed...
We have measured the ultrasonic velocity and attenuation in supercooled water to - 26°C. We have ded...
One of the main mechanisms of ultrasonic attenuation in molecular gases and liquids is due to a slow...
A mathematical model is developed and presented to capture the effect of viscoelastic nature of a ma...
The traditional volume viscosity, Stokes' hypothesis, and acoustical relaxation are reviewed. The lo...
Ultrasonic velocities, densities, and viscosities have been measured for the solution of polyvinyl a...