DOAJ Open Access 2017

Numerical Study of the Effect of Furrows on Biosonar Beamforming in Aselliscus Stoliczkanus Bat

Weikai HE Jianxiong FENG Li GAO Zhiwei ZHANG Hongwang LU

Abstrak

The Aselliscus Stoliczkanus bat, studied here, has intricately shaped structures surrounding the nostrils. These structures are hypothesised to have influence on animals’ acoustic radiation patterns. Using micro-tomography scanning technique, a 3D digital model of the noseleaf is reconstructed and biosonar beam pattern is analysed using a finite element method based on the 3D noseleaf model. The present research focuses on the conspicuous furrows in noseleaf, and our analysis allows to conclude the followings: a) structural details in noseleaf of Aselliscus Stoliczkanus bat can produce acoustic effects even if it is not adjacent to the nostrils, b) the furrows possess frequency-selective characteristics, c) the furrows have the function to manipulate the direction and width of the outgoing ultrasound wave.

Topik & Kata Kunci

Acoustics. Sound

Penulis (5)

Weikai HE

Jianxiong FENG

Li GAO

Zhiwei ZHANG

Hongwang LU

Format Sitasi

APA MLA BibTeX

HE, W., FENG, J., GAO, L., ZHANG, Z., LU, H. (2017). Numerical Study of the Effect of Furrows on Biosonar Beamforming in Aselliscus Stoliczkanus Bat. https://doi.org/10.1515/aoa-2017-0041

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Informasi Jurnal

Tahun Terbit: 2017
Sumber Database: DOAJ
DOI: 10.1515/aoa-2017-0041
Akses: Open Access ✓