A High Performance Computer Model for Sound Propagation in Human Thorax
| dc.contributor.advisor | Dr G M Kumar, Chair | en_US |
| dc.contributor.advisor | Dr M Guddati, Co-Chair | en_US |
| dc.contributor.advisor | Dr J Baugh Jr, Member | en_US |
| dc.contributor.author | Narasimhan, Chandrasegaran | en_US |
| dc.date.accessioned | 2010-04-02T18:17:00Z | |
| dc.date.available | 2010-04-02T18:17:00Z | |
| dc.date.issued | 2001-12-19 | en_US |
| dc.degree.discipline | Civil Engineering | en_US |
| dc.degree.level | Master's Thesis | en_US |
| dc.degree.name | Master of | en_US |
| dc.description.abstract | The purpose of the research has been to develop a mathematical-computer model for sound propagation in human thorax. One of the major advantage of this model is the incorporation of the visible human male data set to have an accurate representation of human thorax. The visible human male data set consists of CT images of a human body at a resolution of 1mm by 1mm by 1mm. Various types of simulations were performed at 4mm by 4mm by 4mm CT image resolution and acoustic pressures were sampled at four different points with in the thorax. The results were analyzed in time and frequency domains. The results from the analysis suggest that frequencies of the order of 100Hz are most effectively transmitted through the thorax and there seems to be a resonance effect at 1500Hz. Further analysis indicates that the resonance frequency could be due to the spatial confinement of the sound waves within the thorax. The model also exhibits a spatial inhomogeneity of sound propagation. The results confirm that the size of the thorax can play a significant role in the type of sound generated at the chest wall. | en_US |
| dc.identifier.other | etd-20011217-204728 | en_US |
| dc.identifier.uri | http://www.lib.ncsu.edu/resolver/1840.16/2740 | |
| dc.rights | I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. | en_US |
| dc.title | A High Performance Computer Model for Sound Propagation in Human Thorax | en_US |
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