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SOUND PRESSURE AS A TOOL IN THE ASSESSMENT OF THE SURFACE ROUGHNESS ON MEDIUM DENSITY FIBREBOARD RIP SAWING PROCESS
(Universidad del Bío-Bío, 2010)
Medidor de pressão e dose sonora
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2009-02-26)
The study of sounds and the influence it exerts in humans has intensified in recent decades due to the large number of vehicles and industries in the centers of large cities. The equipment used to characterize the sound ...
Medição de potência acústica de fontes sonoras através dos métodos da pressão e da intensidade
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2018-06-28)
In order to analyze and better understand the acoustic phenomenon and some of the current standards related to the theme, measurements of the sound power level of a sound source were carried out using pressure and intensity ...
Projeto e protótipo de dispositivo para reduzir o som percebido por cães
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2018-06-02)
Grounded on the analysis of dogs reacting negative to loud noises, it is possible identify the opportunity of development a product aimed to minimize stress on animals. Was analyses the relationship between humans and dogs ...
Sound And Sources Of Sound In A Model Problem With Wake Interaction
(AMER INST AERONAUTICS ASTRONAUTICSRESTON, 2015)
Laser ultrasonics system for measurement of speed of sound in gases
(2012-06-21)
In this work we developed a setup to measure the speed of sound in gases using a laser ultrasonics system. The mentioned setup is an all optical system composed by a Q-switched Nd:YAG laser to generate the sound waves, and ...
Laser ultrasonics system for measurement of speed of sound in gases
(2012-06-21)
In this work we developed a setup to measure the speed of sound in gases using a laser ultrasonics system. The mentioned setup is an all optical system composed by a Q-switched Nd:YAG laser to generate the sound waves, and ...
Frog call intensities and sound propagation in the South American temperate forest region
(1998)
Sound pressure levels and the spectral structure of the advertisement calls of five species of frogs from the South American temperate austral forest were analyzed. Males of Eupsophus emiliopugini, Batrachyla antartandica ...