Acoustic streaming in biological fluids (CROSBI ID 465070)
Prilog sa skupa u zborniku | ostalo | međunarodna recenzija
Podaci o odgovornosti
Žauhar, Gordana ; Starritt, Hazel ; Duck, Francis
engleski
Acoustic streaming in biological fluids
A method of investigating streaming in biological fluids is reported. A number of fluids were insonated using a 3.5 MHz single element diagnostic sonar transducer which was driven in pulsed mode with a total acoustic power of 150mW. Streaming was detected in each fluid using an 8 MHz continuous wave Doppler system and the maximum streaming velocity was obtained by spectral analysis of the Doppler signal. Using this system streaming was observed in water and 4.5% human serum albumen (HSA) solution, to both of which sephadex had been added as a scattering material, and also in blood. The maximum streaming velocities detected were: 9.3 cms-1 in water, 6.8 cms-1 in HSA and 4.9 cms-1 in blood. Streaming was also observed to occur in these fluids using a modern commercial Duplex scanner operating in pulsed Doppler mode. The observation that streaming values were greatest in water, in spite of its low attenuation, was attributed to the high degree of non-linearity.
biological fluids; streaming; acoustic; Doppler signal; spectral analysis
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Podaci o prilogu
23-25-x.
1996.
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objavljeno
Podaci o matičnoj publikaciji
Proceedings - 11th International Symposium on Biomedical Engineering '96
Croatian Medical and Bilogical Society
Zagreb: Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA)
Podaci o skupu
11th International Symposium on Biomedical Engineering '96
predavanje
07.11.1996-09.11.1996
Zagreb, Hrvatska