… mud, and bulk density, sound speed, and attenuation for sand. The … dependence of sound
speed and attenuation are obtained … size introduced by Krumbein [15] for sediments and soils. …

… with reduced attenuation. Lamb waves … soils from their direct experimental measure within
each layer [40]. Specifically, the authors measured the transverse response of a layered soil …

… to improve the reliability of soil tillage machine operations. This study mainly measures the
ultrasonic pulse velocity and attenuation coefficient of the soil medium buried with the hard …

… Establishing a connection between sound signal attenuation and soil water … for soil water
content measurement. The time–frequency spectrogram of sound signals penetrating the soil …

… captured the measured vibrations of the BE in air as well as inside transparent soils. More
… Furthermore, P wave attenuates with travelling distance and the identification of its full …

… in soil occurs the stronger, the greater the soil absorption … In the presence of irregularities in
soil, the size of which is … in the soil absorption coefficient and leads to a greater attenuation of …

… than 10 Hz are rapidly attenuated. This intrigues … size, type and dimensions of the throat
cavity. These differences leaded to product a sound waves various in some items such as; sound …

… signal that affects the attenuation model of the leakage … of soil particles and gas, and
establishes an attenuation model … amplitude obtained from the actual measurement in the field for …

… Therefore, measurement of physical parameters of frozen soil between any two freezing …
The acoustic parameters determined in this study are wave velocity, attenuation coefficient …

… the soil and attenuation of the soil strength [4]. Therefore, studying the damage characteristics
of expansive soil … was used to measure the wave velocities of expansive soil subjected to …