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Detection of the pulse wave velocity in an elastic tube
Chlup, Hynek ; Macková, H. ; Vilímek, M. ; Žitný, R. ; Konvičková, S.
The velocity of the pulse wave in blood vessels is one of the important hemodynamical parameters to detect health condition or a degree of damage of a diseased artery. To understand the problem, the physiological values must be known. In our laboratory, the velocity of pulsewave in elastic tubes and arteries is measured in vitro by non-invasive method. The method is based on optical measurements of displacement of the pulsating pipe wall. A crash test camera with high frame rate of 1000 Hz (fps) was used.
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Dispersion curves in plate of cubic anisotropy
Hora, Petr ; Červená, Olga
The mathematical technique for obtaining dispersion curves for stresswaves in free plates of arbitrary anisotropy is outlined. The dispersion relations forpropagation in a (001)-cut cubic plate are obtained. The dispersion curves for Cuare presented. These results are compared to the uncoupled SV and P modes.
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