Results 21 to 30 of about 108,028 (167)
Sensors, 2019 In this work, we present an integrated photogrammetric-acoustic technique that, together with the construction of a scaled wind tunnel, allows us to experimentally analyze the permeability behavior of a new type of acoustic screen based on a material ...
José M. Bravo +4 more
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A tunable acoustic barrier based on periodic arrays of subwavelength slits
AIP Advances, 2015 The most usual method to reduce undesirable enviromental noise levels during its transmission is the use of acoustic barriers. A novel type of acoustic barrier based on sound transmission through subwavelength slits is presented.
Constanza Rubio +4 more
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Cylindrical 3D printed configurable ultrasonic lens for subwavelength focusing enhancement
Scientific Reports, 2020 In this study, we report the characteristics of acoustic jets obtained through a mesoscale (radius less than 5 wavelengths) ABS cylinder made with a 3D printer.
Sergio Castiñeira-Ibáñez +5 more
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Frontiers in Psychology, 2017 Previous studies on the effect of spectral content on auditory distance perception (ADP) focused on the physically measurable cues occurring either in the near field (low-pass filtering due to head diffraction) or when the sound travels distances >15 ...
Ignacio Spiousas +5 more
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Sensors, 2022 This paper presents the implementation of a measurement system that uses a four microphone array and a data-driven algorithm to estimate depth of cut during end milling operations. The audible range acoustic emission signals captured with the microphones
Andrés Sio-Sever +4 more
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Discover Environment, 2023 Fireworks are widely celebrated worldwide but have raised environmental concerns due to pollutant emissions. This has prompted evolving legislation in many countries, necessitating scientific evidence for policy development.
Esteban N. Lombera +2 more
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Pausas en la lectura de textos expresivos: métricas de evaluación
Langue(s) & Parole, 2023 El desarrollo de las competencias de expresión oral es uno de los objetivos que se establecen en el currículo oficial de lengua española para los dos cursos de Bachillerato en España.
Eva Estebas-Vilaplana +2 more
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Acoustic properties of reed panels
Materiales de Construccion, 2012 Reed is a plant species very similar to common cane which is widespread all over the Earth. It is an ecological and sustainable material which is low-cost, aesthetically attractive, easy to obtain and install, and can be used in different construction ...
César Díaz +3 more
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Variación sociofonética: comparación de análisis graduales y categórico
Cuadernos de Lingüística Hispánica, 2021 En este artículo se comparan los resultados de dos modelos de análisis sociofonético diferentes: un modelo continuo y uno categórico. La variable sociofonética investigada es la producción de /d/ intervocálica en Madrid.
FERNANDO MELERO GARCÍA
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Física experimental com Arduino: ondas em uma corda tensionada [PDF]
Revista Brasileira de Ensino de Física, 2020 Resumo Neste trabalho foi desenvolvido um aparato para estudo do som emitido por cordas vibrantes utilizando a plataforma Arduino. Cordas de aço e nylon foram fixadas a um dispositivo que permitia aplicar uma força de tração às cordas e investigar a ...
Itamar V. de Sousa Jr. +3 more
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