Results 21 to 30 of about 4,760,883 (304)
On the physical origin of the electro-mechano-acoustical analogy
, 2022 The electro-mechano-acoustical (EMA) analogy, introduced in the early 1900s, allows for the modeling of mechanical, acoustical, and EMA devices and systems using schematics of basic electrical elements, making possible the application of the well ...
Giuseppe Bertuccio, Bertuccio G.
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Acoustical characterization of touristic caves in Portugal [PDF]
, 2015 Since the Palaeolithic, Mankind has been taking advantage of the acoustical characteristics of natural caves to perform its rituals. Nowadays many of these spaces are used as touristic attractions or even as stages for musical performances.
António P. Carvalho +2 more
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Journal of Saudi Chemical Society, 2014 The ultrasonic velocity (u), density (ρ) and viscosity (η) of Fructose, Lactose and Sucrose in 0.4 M of Hydroxy Propyl Methyl Cellulose (HPMC) solutions have been investigated at 303, 313 and 323 K, respectively.
S. Punitha +3 more
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Measurements of Acoustical Parameters in the Ancient Open-Air Theatre of Tyndaris (Sicily, Italy)
Applied Sciences, 2020 The emerging field of archaeoacoustics is attracting increasing research attention from scholars of different disciplines: the investigation of the acoustic features of ancient open-air theatres is possibly one of its main themes.
Arianna Astolfi +3 more
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Influence of Acoustical Adaptation on Classroom's Acoustical Enviroment [PDF]
, 2012 A number of objective ana subjective acoustical parameters, referring to the reverberance, and spatial distribution of sound and speech intelligibility, were measured before and after the acoustical adaptation of a classroom.
Wróblewska, D., Leo, K.
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Frontiers of Architectural Research, 2017 In the present study, improving acoustical characteristics of a Gothic cathedral (Myeong-dong Cathedral, which is the first built Western Gothic-style architecture in Korea) using simple public address system were investigated.
In Hwan Hwang, Won Gab Choi
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Ultrasonic Investigation of Molecular Interactions in Binary Mixtures at 303 K
E-Journal of Chemistry, 2009 The ultrasonic velocity, density and viscosity at 303 K have been measured in the binary systems of toluene with benzene and o-xylone with benzene. The acoustical parameters such as adiabatic compressibility, free length, free volume and acoustical ...
R. Nithya +3 more
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Molecular Association Studies on Polyvinyl Alcohol at Different Concentrations
Advances in Materials Science and Engineering, 2018 Ultrasonic velocities, densities, and viscosities have been measured for the solution of polyvinyl alcohol in water at concentration range of 0.3% to 1% at temperature 35°C.
Richa Saxena, S. C. Bhatt
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A 3-parameter analytical model for the acoustical properties of porous media
, 2019 Many models for the prediction of the acoustical properties of porous media require non-acoustical parameters few of which are directly measurable. One popular prediction model by Johnson, Champoux, Allard and Lafarge [Champoux et al, J. Appl. Phys, 70(4)
Hurrell, A. +8 more
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Orbital: The Electronic Journal of Chemistry, 2014 In the present study, ultrasonic velocity (U), density (ρ), and viscosity (η) have been measured at frequency 1 MHz in the binary mixtures of methyl cobalamine with water in the concentration range (0.1 to 0.0125%) at 303 K, 308 K, and 313 K using a ...
Ritesh R. Naik, Sheshrao V. Bawankar
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