Abstract:
:The finite element modeling (FEM) space reported here contains the head of a simulated whale based on CT data sets as well as physical measurements of sound-propagation characteristics of actual tissue samples. Simulated sound sources placed inside and outside of an adult male Cuvier's beaked whale (Ziphius cavirostris) reveal likely sound propagation pathways into and out of the head. Two separate virtual sound sources that were located at the left and right phonic lips produced beams that converged just outside the head. This result supports the notion that dual sound sources can interfere constructively to form a biologically useful and, in fact, excellent sonar beam in front of the animal. The most intriguing FEM results concern pathways by which sounds reach the ears. The simulations reveal a previously undescribed 'gular pathway' for sound reception in Ziphius. Propagated sound pressure waves enter the head from below and between the lower jaws, pass through an opening created by the absence of the medial bony wall of the posterior mandibles, and continue toward the bony ear complexes through the internal mandibular fat bodies. This new pathway has implications for understanding the evolution of underwater hearing in odontocetes. Our model also provides evidence for receive beam directionality, off-axis acoustic shadowing and a plausible mechanism for the long-standing orthodox sound reception pathway in odontocetes. The techniques developed for this study can be used to study acoustic perturbation in a wide variety of marine organisms.
journal_name
Bioinspir Biomimjournal_title
Bioinspiration & biomimeticsauthors
Cranford TW,Krysl P,Hildebrand JAdoi
10.1088/1748-3182/3/1/016001subject
Has Abstractpub_date
2008-03-01 00:00:00pages
016001eissn
1748-3182issn
1748-3190pii
S1748-3182(08)56067-4journal_volume
3pub_type
杂志文章abstract::Many kinds of bio-inspired tasks have been tested with swarm robotics and task partitioning is one of the challenging subjects. In nature, it is well known that some colonies of social insects such as honeybees, termites, and ants use task partitioning strategies for their survival. In this paper, we demonstrate an ef...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa8293
更新日期:2017-10-16 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/7/1/015003
更新日期:2012-03-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/2/4/002
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa8f33
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/4/3/036001
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/11/1/016006
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journal_title:Bioinspiration & biomimetics
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aae23f
更新日期:2018-10-16 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aaa2cd
更新日期:2018-02-02 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab2298
更新日期:2019-07-03 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/3/3/034002
更新日期:2008-09-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa7ea3
更新日期:2017-09-26 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/7/3/036017
更新日期:2012-09-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/4/1/015006
更新日期:2009-03-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/2/3/002
更新日期:2007-09-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab1621
更新日期:2019-04-24 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章,评审
doi:10.1088/1748-3190/aa806e
更新日期:2017-11-08 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aada54
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aabe15
更新日期:2018-05-25 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/9/1/016001
更新日期:2014-03-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/6/1/016003
更新日期:2011-03-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/7/2/025007
更新日期:2012-06-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/11/5/055005
更新日期:2016-09-07 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/9/3/036004
更新日期:2014-09-01 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab3e2a
更新日期:2019-09-24 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab0fbe
更新日期:2019-04-10 00:00:00
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journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/10/5/056011
更新日期:2015-09-28 00:00:00