Search Results - "Boullosa, Ricardo R."

Transfer of angular momentum to matter from acoustical vortices in free space by Volke-Sepúlveda, Karen, Santillán, Arturo O, Boullosa, Ricardo R

“…An experimental demonstration of the mechanical transfer of orbital angular momentum to matter from acoustical vortices in free field is presented. Vortices…”
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An airborne parametric array by R. Boullosa, Ricardo, Pérez-López, A., Dorantes-Escamilla, R., L. Rendón, P.

“…The development of a prototype parametric speaker comprised of 37 piezo-speakers, also known as “acoustic flashlight” is described. The sound pressure along…”
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Acoustics of the jarana jarocha by Boullosa, Ricardo R., Gómez, Sara R.

“…Some acoustical measurements on the jarana jarocha primera (first), a traditional Mexican instrument, a “one-piece” body instrument, in the coastal region of…”
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Influence of the bridge on the vibrations of the top plate of a classical guitar by Torres, Jesús Alejandro, Boullosa, Ricardo R.

“…In this work the effect of two different bridge configurations on the vibrations of the top plate of a classical guitar is presented. Experimental harmonic…”
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Radiation efficiency of a guitar top plate linked with edge or corner modes and intercell cancellation by Torres, Jesús Alejandro, Boullosa, Ricardo R.

“…This paper was based on a theoretical framework to determine strong and weak radiation by a guitar top plate, vibrating through deflections hard to analyze:…”
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Sound Radiation from Thermal Non-resonant Sources: Planar and Nonplanar Geometries by Boullosa, Ricardo R., Santillán, Arturo O.

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Some acoustical properties of the anechoic chamber at the Centro de Instrumentos, Universidad Nacional Autónoma de México by Boullosa, Ricardo R, Pérez López, A

“…Some of the basic acoustical properties of an anechoic chamber recently brought to operation are described. The background noise levels and sound insulation of…”
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A simple measuring system for vibrations at low amplitudes by Boullosa, Ricardo R., López, A.Pérez

“…A simple laser system for the measurement of low amplitudes of vibration is presented which can be used for calibration purposes in vibration pickups. It is…”
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The reaction force on a Helmholtz resonator driven at high sound pressure amplitudes by Boullosa, Ricardo R., Orduña‐Bustamante, Felipe

“…A review of the simple oscillator model of the Helmholtz resonator is presented and the nonlinear behavior of the elastic force is analyzed in terms of the…”
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Acoustics of the guitar at the National Autonomous University of Mexico by Boullosa, Ricardo R.

“…Ongoing work in the field of Musical Acoustics (among other areas of interest) has been carried out at the Acoustics Laboratory at the Centro de…”
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Vibration measurements in the classical guitar by Boullosa, Ricardo R.

“…Some measurements are described that pertain to the high frequency behaviour of the vibrations of the string and soundboard of the guitar.Three isolated…”
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Use of measured data in the physical modeling of the classical guitar by Boullosa, Ricardo R., Orduña-Bustamante, Felipe

“…A simple physical model consisting of a delay-network representation of the string and a radiation filter (which transduces bridge motion into sound pressure…”
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Subjective evaluation of classical guitars by Orduña-Bustamante, Felipe, Boullosa, Ricardo R.

“…An analysis is presented of two methods for the subjective evaluation of a set of classical guitars. One is based on ‘‘blind’’ listening tests by a general…”
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A multi-processor system for the production of virtual sound fields by Ordunã-Bustamante, Felipe, Boullosa, Ricardo R., López, Antonio P.

“…A multi-processor system is described for the production of virtual sound fields using small arrays of up to four high-quality loudspeakers and up to four…”
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Acoustic power and heat fluxes in the thermoacoustic effect due to a travelling plane wave by Santillán, Arturo O., Boullosa, Ricardo R.

“…The thermoacoustic effect in a single plate due to a travelling plane wave is analyzed with respect to the conditions for the refrigerator or prime mover cycle…”
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Tuning characteristics, radiation efficiency and subjective quality of a set of classical guitars by Boullosa, Ricardo R., Orduña-Bustamante, Felipe, Pérez López, A.

“…This paper is an exploratory study of the influence of tuning and radiation properties on the subjective quality of a small set of classical guitars. It is…”
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Space dependence of acoustic power and heat flux in the thermoacoustic effect by Santillán, Arturo O., Boullosa, Ricardo R.

“…The dependence of heat flux with the perpendicular distance to a single plate in a stationary plane wave and of the acoustic power absorbed or generated is…”
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Error estimates for free-decay damping measurements by ORDUNA-BUSTAMANTE, F, BOULLOSA, R. R

“…An estimate is presented of the errors introduced by digital sampling of an analog time signal when the logarithmic decrement method is used to measure…”
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