Results 11 to 20 of about 1,805,737 (314)

Constitution Method for Broadband Acoustic Metamaterials Based on the Design Theory of a One-Dimensional Distributed Transmission-Line Model

open access: yesCrystals, 2022
A method for realizing broadband acoustic metasurfaces composed of a one-dimensional distributed transmission-line model is proposed. There are no design formulas for determining the structural parameters of the structure constituting acoustic ...
Tomoya Nakagawa   +3 more
doaj   +1 more source

One, Two, Three! Can Everybody Hear Me? Acoustics of Roman Contiones. Case Studies of the Capitoline Hill and the Temple of Bellona in Rome

open access: yesOpen Archaeology, 2023
Rhetoric was one of the cornerstones of Roman education and public speaking, the essence of being a Roman politician. The speakers attempted to captivate the audience with their style and convince them of their arguments.
Kopij Kamil   +3 more
doaj   +1 more source

Acoustic ring resonator: Experiments and simulations

open access: yesAIP Advances, 2022
The application of acoustic ring resonator structures for the manipulation of audio frequency acoustic waves is demonstrated experimentally and via numerical simulation.
William M. Robertson   +5 more
doaj   +1 more source

Auditorium Acoustics Simulator [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1970
An acoustics simulator is a complex of signal processing equipment by which the acoustical characteristics of one space may be simulated in another. Artificial reverberation systems, theater surround systems, and four-channel stereo systems are familiar examples of relatively simple simulators. A more comprehensive simulator can be useful in auditorium
T. R. Horrall   +2 more
openaire   +1 more source

Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes [PDF]

open access: yes, 2013
We present observational evidence for the presence of MHD (magnetohydrodynamic) waves in the solar photosphere deduced from SOHO/MDI (Solar and Heliospheric Observatory/Michelson Doppler Imager) Dopplergram velocity observations.
Shelyag, S.   +14 more
core   +2 more sources

Acoustic waveguide based on cascaded Luneburg lens [PDF]

open access: yesJASA Express Letters, 2022
This paper investigates the acoustic Luneburg Lens (ALL) as a design framework for guiding acoustic wave propagation. In this study, an acoustic waveguide is proposed based on the characteristics of both acoustic wave focusing and collimation of cascaded
Liuxian Zhao, Timothy Horiuchi, Miao Yu
doaj   +1 more source

Experimental investigations and computer simulations to solve acoustic problems in the modern church

open access: yesEngineering Structures and Technologies, 2018
Architectural acoustics of contemporary sacred buildings is still an under-appreciated issue. Many contemporary churches are not functional enough due to acoustic defects which occur there.
Anna Sygulska   +2 more
doaj   +1 more source

Simulation studies for large scale acoustic neutrino detectors [PDF]

open access: yesEPJ Web of Conferences, 2019
The AMADEUS system is a submarine acoustic array that was operated from 2008 until 2015 as a part of the ANTARES neutrino telescope in the Mediterranean Sea.
Kieβling Dominik, Lahmann Robert
doaj   +1 more source

Interacting with Acoustic Simulation and Fabrication [PDF]

open access: yesAdjunct Publication of the 30th Annual ACM Symposium on User Interface Software and Technology, 2017
ACM UIST 2017 Doctoral ...
openaire   +2 more sources

Simulation of Surface Acoustic Wave Devices [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2004
The Mason crossed-field circuit model is generalized to simulate apodized interdigital transducers without channel division. The apodized transducer model is based on the transmission line model, and the artificial transformer with different voltage and current coupling ratios is used to independently obtain the transfer function and radiation ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy