The nature of respiration noise and its multifractal properties
Анотація
Using a conventional and original technique of recording normal human vesicular and tracheal respiration noise and their fractal analysis, it has been established that noise has a multifractal character and the nature of the occurrence of vesicular and tracheal noise is different. It is been demonstrated that vesicular noise occurs as a result of expansion-contraction deformation of the lung parenchyma during act of respiration, and tracheal noise, as is known, occurs due to pressure pulsations on the internal surface of the trachea caused by nonstationary airflow in the glottal zone.
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