| Autor: |
L. P. L. de Oliveira, D. Faistauer, Bardo E. J. Bodmann |
| Rok vydání: |
2003 |
| Předmět: |
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| Zdroj: |
Physical review. E, Statistical, nonlinear, and soft matter physics. 69(1 Pt 1) |
| ISSN: |
1539-3755 |
| Popis: |
A general scheme is proposed to explain the observed spectral properties of high-frequency human respiratory sounds in terms of the interaction between the respiratory flux and a bronchial tree of fractal properties. The air flux is treated as composed of discrete decoupled elements while the tree is assumed to have a Cantor-based geometry. According to this model, the affine behavior often observed in the high-frequency (log-log) spectral range is a direct consequence of the fractal geometry of the bronchial tree in both qualitative and quantitative aspects. This strongly indicates that the dynamics underlying the high-frequency sound generation must have at most nondominant couplings between the relevant fluid components. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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