Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"airway closure"”.
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An investigation of the mechanisms responsible for pulmonary airway closure
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Analysis of Endogenous Particles in Exhaled Air
… are formed during the reopening of closed airways was tested by measuring particle number concentrations in the air exhaled by healthy volunteers performing different breathing maneuvers. This is the first study involving chemical analysis of particles in exhaled air. TOF-SIMS analysis …
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Stability analysis of a bilayer contained within a cylindrical tube
Airways in the lung are coated with a liquid bilayer consisting of a serous layer adjacent to a more viscous mucus layer which is contiguous with the air core. An instability due to surface tension at the interfaces may lead to the formation of a liquid plug that blocks the passage of air. This is …
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Lung mechanics in the aging lung and in acute lung injury. Studies based on sinusoidal flow modulation.
… by collapsing alveoli, while in younger subjects airway closure dominates. Expiratory R in relation to Pel decreased with age. When C and R were related to volume rather than to Pel no age dependence was observed. Accordingly, dimension of the lung rather than the distending pressure Pel seems to …