Buscar
Mostrando ítems 1-10 de 98
Handwritten Signatures Verification Through Their Acoustic Patterns Based on the Discrete Wavelet-Packet Transform and Semantic-Matching Classifiers
(World Scientific Publ Co Pte Ltd, 2016-12-01)
Biometric authentication based on fingerprints, voice, hand shape, facial measurements and iris analysis, among others, are quite common nowadays. In a similar manner, the analysis of acoustic patterns generated during the ...
Handwritten Signatures Verification Through Their Acoustic Patterns Based On The Discrete Wavelet-packet Transform And Semantic-matching Classifiers
(World Scientific Publ Co Pte LtdSingapore, 2016)
Construção e estudo de uma caixa acústica bookshelf
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Engenharia de Controle e AutomaçãoUTFPR, 2018-12-04)
In order to bring the context of DIY (do it yourself) acoustic boxes closer to the brazilian reality, this paper intends to be used as help for a better understanding of this vast and complex subject. Starting off of the ...
Acoustic Imaging of In-Duct Aeroengine Noise Sources Using Rotating Beamforming and Phased Arrays
(Ieee-inst Electrical Electronics Engineers Inc, 2017-09-01)
An in-duct rotating beamforming technique, using a wall-mounted array of microphones placed within a long duct, was developed for locating broadband noise sources from an aeroengine fan. The technique was experimentally ...
Interpreting underwater acoustic images of the upper ocean boundary layer
(2007)
A challenging task in physical studies of the upper ocean using underwater sound is the interpretation of high-resolution acoustic images. This paper covers a number of basic concepts necessary for undergraduate and ...
Strong individual signatures and weaker group signatures in contact calls of Spix’s disc-winged bat, Thyroptera tricolor
(2012-01)
Spix’s disc-winged bats, Thyroptera tricolor, form small, long-term social groups in which members are
loyal to a patch of forest but move on a daily basis between highly ephemeral roosting sites (partly unfurled Heliconia ...