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    A Numerical Evidence of Biosonar Beam Formation of a Neonate Yangtze Finless Porpoise (Neophocaena asiaeorientalis)

    Access Status
    Fulltext not available
    Authors
    Wei, Chong
    Song, Zhongchang
    Au, Whitlow WL
    Zhang, Yu
    Wang, Ding
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wei, C. and Song, Z. and Au, W.W.L. and Zhang, Y. and Wang, D. 2018. A Numerical Evidence of Biosonar Beam Formation of a Neonate Yangtze Finless Porpoise (Neophocaena asiaeorientalis). Journal of Theoretical and Computational Acoustics. 26 (2): Article ID 1850009.
    Source Title
    Journal of Theoretical and Computational Acoustics
    DOI
    10.1142/S2591728518500093
    ISSN
    2591-7285
    Faculty
    Faculty of Science and Engineering
    School
    School of Earth and Planetary Sciences (EPS)
    URI
    http://hdl.handle.net/20.500.11937/76251
    Collection
    • Curtin Research Publications
    Abstract

    Yangtze finless porpoises (Neophocaena asiaeorientalis) are known to use the narrowband signals for echolocation. In this study, a finite-element model was configured based on computed tomography imaging technique and tissue physical properties measurement to simulate biosonar signal emission and transmission processes through animal’s head. The roles of the main structures in the head such as the air sacs, melon, bony structures, connective tissue, blubber, mandibular fat on the biosonar beam formation were investigated, and the relative importance of these structures was compared. The biosonar beam properties of this neonate porpoise were compared with those of adult ones. The method in this paper suggested an effective way for investigating the acoustic processes in the heads of the neonate odontocetes.

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