Now showing items 1-10 of 3391
Influence of nonlinear effects on the acoustic levitation of small spheres
(IEEEChicago, Illinois, 2014-09-03)
This paper presents the nonlinear characterization of a single-axis acoustic levitator and the analysis of the influence of nonlinear effects on the acoustic levitation of small spheres. First, the nonlinear characterization ...
Energy method to calculate the density of liquids using ultrasonic reflection techniques
In this work it is introduced a new approach to calculate the density of liquids in terms of the energies of the acoustic signals. This method is compared to other methods in the time domain (peak-to-peak amplitudes) and ...
In-process grinding monitoring through acoustic emission
This work aims to investigate the efficiency of digital signal processing tools of acoustic emission signals in order to detect thermal damages in grinding processes. To accomplish such a goal, an experimental work was ...
SIMULAÇÃO ACÚSTICA DE SALAS DE AULA EM ESCOLAS DE EDUCAÇÃO BÁSICA: UMA PROPOSTA TIPOLÓGICA PARA PRÁTICA MUSICAL
(Universidade Federal de Santa MariaBREngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia Civil, 2012-09-24)
The study of room acoustics is linked to the importance of sound inside a room, so the architectural characteristics of the internal space determine the acoustic behavior. To get better acoustics of a room there are ...
Analytical study of the acoustic field in a spherical resonator for single bubble sonoluminescence
(Acoustical Society of America Institute of Physics, 2009-09)
The acoustic ﬁeld in the liquid within a spherical solid shell is calculated. The proposed model takes into account Stoke?s wave equation in the viscous ﬂuid, the membrane theory to describe the solid shell motion and the ...
AcMus: an Open, Integrated Platform for Room Acoustics Research
This article describes the design, implementation, and experiences with AcMus, an open and integrated software platform for room acoustics research, which comprises tools for measurement, analysis, and simulation of rooms ...