What do changes in the amplitude of the transmitted or reflected ultrasound waves reveal about defects in materials?

True amplitude wave field extrapolation with applications in seismic shot record redatuming / George Laurens. Peels.-. [S.l. : s.n.] (Zoetermeer : Gebotekst) ... Waves with amplitude much smaller than both wavelength and depth, a ¿ λ, d, are called a small-amplitude waves. The dispersion law. In a gravity wave the force ... This paper proposed a WSAW frequency estimation method based on an improved RELAX algorithm, incorporating two improvements. Mar 10, 2025 ... Amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium ... The Amplitude of a Wave · The peak is the highest point of the wave. · The trough is the lowest point of the wave. · The resting position is where the material ... We consider two-dimensional steady periodic gravity waves on water of finite depth with a prescribed but arbitrary vorticity distribution. Jan 1, 1975 ... A first approximation to finite amplitude waves of large wavelength is obtained. ... wave solutions given by Korteweg and deVries. To control for amplitude changes across the night, we matched slow-waves from the first and the last hour of NREM sleep according to their amplitude. Results. Oct 28, 2020 ... In terms of particle motion, how would you describe the difference between a high amplitude wave and a low amplitude wave? Nov 29, 2017 ... A traveling wave is given by y(x, t) (6 cm) sin(12x + 50t), where x is in m and t is in sa. What are the amplitude, wave number, and angular frequency?