Ultrasonic pulse propagation in inhomogeneous one-dimensional media

1998 ◽  
Vol 104 (1) ◽  
pp. 57-63 ◽  
Author(s):  
N. Cretu ◽  
P. P. Delsanto ◽  
G. Nita ◽  
C. Rosca ◽  
M. Scalerandi ◽  
...  
Keyword(s):  
Pulse Propagation ◽  
Ultrasonic Pulse ◽  
One Dimensional

Pulse propagation in one-dimensional nonlinear chains

1982 ◽  
Vol 1 (5) ◽  
pp. 697-715 ◽  
Author(s):  
M. Leo ◽  
R. A. Leo ◽  
G. Soliani ◽  
G. Mancarella ◽  
L. Martina
Keyword(s):  
Pulse Propagation ◽  
One Dimensional

Influence of Clutch Disc Waste (Grinding Dust) on Portland Cement Hydration

2019 ◽  
Vol 803 ◽  
pp. 284-288
Author(s):  
José da Silva Andrade Neto ◽  
Tiago Assunção Santos ◽  
Raphael Dias Mariano ◽  
Marcio Raymundo Morelli ◽  
Daniel Véras Ribeiro
Keyword(s):  
Portland Cement ◽  
Propagation Velocity ◽  
Pulse Propagation ◽  
Cement Hydration ◽  
Setting Time ◽  
Reference Sample ◽  
Ultrasonic Pulse ◽  
X Ray Diffraction ◽  
Copper Zinc ◽  
Portland Cement Hydration

This paper evaluates the effect of grinding dust (GD), a waste generated in the clutch disc finishing process, on Portland cement hydration. For this, pastes with additions of 5%, 10% and 15% GD, relative to cement weight, were molded and compared with a reference sample. Tests of setting time determination by Vicat needle, calorimetry, monitoring the ultrasonic pulse propagation velocity and mineralogical analysis (X-ray diffraction) in pastes with 1 day of hydration were carried out. It was observed that GD, due to the presence of copper, zinc and phenolic resin in its composition, is responsible for retarding cement hydration and thus increases the setting time and delays the evolution of heat release and pulse propagation velocity. However, the formation of new crystalline phases was not observed.

Compression and amplification of an ultrasonic pulse reflected from a one-dimensional layered structure

2007 ◽  
Vol 53 (2) ◽  
pp. 127-135 ◽  
Author(s):  
A. E. Ponomarev ◽  
S. I. Bulatitskiĭ ◽  
O. A. Sapozhnikov
Keyword(s):  
Layered Structure ◽  
Ultrasonic Pulse ◽  
One Dimensional

Simulation of ultrasonic pulse propagation through the abdominal wall

1997 ◽  
Vol 102 (2) ◽  
pp. 1177-1190 ◽  
Author(s):  
T. Douglas Mast ◽  
Laura M. Hinkelman ◽  
Michael J. Orr ◽  
Victor W. Sparrow ◽  
Robert C. Waag
Keyword(s):  
Abdominal Wall ◽  
Pulse Propagation ◽  
Ultrasonic Pulse

Simulation of ultrasonic pulse propagation, distortion, and attenuation in the human chest wall

1999 ◽  
Vol 106 (6) ◽  
pp. 3665-3677 ◽  
Author(s):  
T. Douglas Mast ◽  
Laura M. Hinkelman ◽  
Leon A. Metlay ◽  
Michael J. Orr ◽  
Robert C. Waag
Keyword(s):  
Chest Wall ◽  
Pulse Propagation ◽  
Ultrasonic Pulse
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