Results 101 to 110 of about 1,334 (158)

150 MHz polymer resonator for optoacoustic mesoscopy based on a tapered optical fiber. [PDF]

Nat Commun
Ülgen O, La TA, Zakian C, Gotsch M, Ntziachristos V.   +4 more
europepmc   +1 more source

Acoustic multiple transmission peaks in Thue-Morse structures based on lateral resonators. [PDF]

Sci Rep
Zaky ZA, Hennache A, Antraoui I, El Malki M, Khettabi A, Zaky MA.   +5 more
europepmc   +1 more source

Emergent polar order from interlayer microstrain in layered perovskites. [PDF]

Sci Adv
Zhang H, Saunders TG, Christogeorgos O, Yan H, Hao Y.   +4 more
europepmc   +1 more source

Study on Acoustic Properties of Helmholtz-Type Honeycomb Sandwich Acoustic Metamaterials. [PDF]

Materials (Basel)
Gai XL, Li XH, Guan XW, Xing T, Cai ZN, Hu WC.   +5 more
europepmc   +1 more source

From Fixed-Frequency to Tunable: Advances in Acoustic Sensors for Physiological Acoustic Monitoring. [PDF]

Sensors (Basel)
Wang J, Liu C, Dong P, Li J, Tan K, Li B, Zhou J, Qiao Y.   +7 more
europepmc   +1 more source

Road transport of trapped antiprotons. [PDF]

Nature
Leonhardt M, Morgner J, Abbass F, Anjum KK, Arndt B, Czampiel RP, Daehnhardt N, Endoh S, Imamura T, Jäger JI, Kürschner L, Latacz BM, Micke P, Natakala D, Rahner R, Schweitzer D, Stahl S, Völksen F, Yildiz H, Blaum K, Devlin JA, Matsuda Y, Ospelkaus C, Quint W, Soter A, Walz J, Yamazaki Y, Ulmer S, Smorra C.   +28 more
europepmc   +1 more source

Optical Helmholtz resonators [PDF]

Applied Physics Letters, 2014
Helmholtz resonators are widely used acoustic components able to select a single frequency. Here, based on an analogy between acoustics and electromagnetism wave equations, we present an electromagnetic 2D Helmholtz resonator made of a metallic slit-box structure.
Paul Chevalier, Patrick Bouchon, Riad Haidar   +2 more
exaly   +2 more sources

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METHOD FOR ADJUSTING A HELMHOLTZ RESONATOR AND AN ADJUSTABLE HELMHOLTZ RESONATOR

The Journal of the Acoustical Society of America, 2013
In a method for adjusting a Helmholtz resonator ( 10 ), in which a resonator volume ( 11 ) is connected to a space ( 13 ) to be provided with damping along an axis ( 29 ) via a constriction ( 12 ) having an acoustic impedance, the acoustic impedance of the constriction ( 12 ) is altered in order to adjust the Helmholtz resonator ( 10 ).
Bruno Schuermans, Jaan Hellat
openaire   +1 more source

Helmholtz resonator with extended neck

The Journal of the Acoustical Society of America, 2003
Acoustic performance of a concentric circular Helmholtz resonator with an extended neck is investigated theoretically, numerically, and experimentally. The effect of length and shape of, and the perforations on the neck extension is examined on the resonance frequency and the transmission loss.
Ahmet, Selamet, Iljae, Lee
openaire   +2 more sources

Leakage effect in Helmholtz resonators

The Journal of the Acoustical Society of America, 2009
The effect of leakage in Helmholtz resonators has been investigated in this predominantly experimental study combined with a computational effort. A prototype has been built with varying levels of intentional leakage due to holes in the baffle and gaps between the baffle and the housing.
Ahmet, Selamet, Hyunsu, Kim, Norman T, Huff   +2 more
openaire   +2 more sources