Relevant bibliographies by topics / Acoustic field effects

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Acoustic field effects'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Acoustic field effects.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Acoustic field effects"

1

Xu, Guo Liang, Qi Wei He, Shao Chun Ding, and Hai Bo Wan. "Effects of Quay Wall and Seabed Reflection on the AUV Acoustic Radiation Test Analysis." Applied Mechanics and Materials 599-601 (August 2014): 922–26. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.922.

Full text
Abstract:
To analyze effects of quay environment on the AUV radiated acoustic field test, the PNAH (PNAH: planar near-field acoustical holography) was used to simulate acoustic field. By simulating the free and non-free acoustic field and comparing amplitudes and angles of complex sound pressure, Analyze effects of quay wall and seabed reflection on the AUV radiated acoustic field test to determine the standard of quay wall and seabed environment which meets testing. The work would provide a certain reference for the AUV radiated acoustic field test.
APA, Harvard, Vancouver, ISO, and other styles
2

Bálek, R., M. Červenka, and S. Pekárek. "Acoustic field effects on a negative corona discharge." Plasma Sources Science and Technology 23, no. 3 (May 15, 2014): 035005. http://dx.doi.org/10.1088/0963-0252/23/3/035005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Walker, John S., Gita Talmage, Samuel H. Brown, and Neal A. Sondergaard. "Acoustic End Effects in Magnetohydrodynamic Submerged Vehicular Propulsors." Journal of Ship Research 36, no. 01 (March 1, 1992): 69–76. http://dx.doi.org/10.5957/jsr.1992.36.1.69.

Full text
Abstract:
This paper treats the effects near the ends of the channel on the transmission and reflection of periodic acoustic waves generated at some cross section inside a magnetohydrodynamic (MHD) seawater propulsion system. A region of high uniform magnetic field inside the MHD submerged vehicular propulsor is separated from the essentially zero magnetic field outside the channel by a nonuniform, fringing magnetic field at each end of the channel. The channel configuration chosen here is that of a straight, rectangular duct with electrically insulating top and bottom walls perpendicular to the magnetic field and highly conducting sidewalls parallel to the field. In particular, the mathematical analysis focuses on determining the percentage of the incident wave which is reflected by the fringing-field region back into the uniform-field region and the percentage which is transmitted through the fringing-field region into the zero-field region. The key parameter is the acoustic interaction parameter N, which is the characteristic ratio of the electromagnetic body force opposing motions across magnetic field lines to the inertial "force" in the acoustic wave. Solutions are presented for the fundamental, plane acoustic mode for arbitrary values of Ν and for all acoustic modes for Ν < 1. The amplitudes of the reflected and transmitted waves depend on the wave frequency, the length of the fringing-field region, N, and the type of wave mode. The magnetic field introduces a strong anisotropy with strong damping of modes involving transverse motions across magnetic field lines and with weak damping of modes involving transverse motions along field lines. This is the third in a series of articles on MHD marine propulsion from the David Taylor Research Center MHD propulsion program [Brown et al (1990), Tempelmeyer (1990)].
APA, Harvard, Vancouver, ISO, and other styles
4

ARIAS, E., C. H. G. BÉSSA, and N. F. SVAITER. "AN ANALOG FLUID MODEL FOR SOME TACHYONIC EFFECTS IN FIELD THEORY." Modern Physics Letters A 26, no. 31 (October 10, 2011): 2335–44. http://dx.doi.org/10.1142/s0217732311036784.

Full text
Abstract:
We consider the sound radiation from an acoustic point-like source moving along a supersonic ("space-like") trajectory in a fluid at rest. We call it an acoustic "tachyonic" source. We describe the radiation emitted by this supersonic source. After quantizing the acoustic perturbations, we present the distribution of phonons generated by this classical tachyonic source and the classical wave interference pattern.
APA, Harvard, Vancouver, ISO, and other styles
5

BAILLOT, F., J. B. BLAISOT, G. BOISDRON, and C. DUMOUCHEL. "Behaviour of an air-assisted jet submitted to a transverse high-frequency acoustic field." Journal of Fluid Mechanics 640 (December 2, 2009): 305–42. http://dx.doi.org/10.1017/s002211200999139x.

Full text
Abstract:
Acoustic instabilities with frequencies roughly higher than 1 kHz remain among the most harmful instabilities, able to drastically affect the operation of engines and even leading to the destruction of the combustion chamber. By coupling with resonant transverse modes of the chamber, these pressure fluctuations can lead to a large increase of heat transfer fluctuations, as soon as fluctuations are in phase. To control engine stability, the mechanisms leading to the modulation of the local instantaneous rate of heat release must be understood. The commonly developed global approaches cannot identify the dominant mechanism(s) through which the acoustic oscillation modulates the local instantaneous rate of heat release. Local approaches are being developed based on processes that could be affected by acoustic perturbations. Liquid atomization is one of these processes. In the present paper, the effect of transverse acoustic perturbations on a coaxial air-assisted jet is studied experimentally. Here, five breakup regimes have been identified according to the flow conditions, in the absence of acoustics. The liquid jet is placed either at a pressure anti-node or at a velocity anti-node of an acoustic field. Acoustic levels up to 165 dB are produced. At a pressure anti-node, breakup of the liquid jet is affected by acoustics only if it is assisted by the coaxial gas flow. Effects on the liquid core are mainly due to the unsteady modulation of the annular gas flow induced by the acoustic waves when the mean dynamic pressure of the gas flow is lower than the acoustic pressure amplitude. At a velocity anti-node, local nonlinear radiation pressure effects lead to the flattening of the jet into a liquid sheet. A new criterion, based on an acoustic radiation Bond number, is proposed to predict jet flattening. Once the sheet is formed, it is rapidly atomized by three main phenomena: intrinsic sheet instabilities, Faraday instability and membrane breakup. Globally, this process promotes atomization. The spray is also spatially organized under these conditions: large liquid clusters and droplets with a low ejection velocity can be brought back to the velocity anti-node plane, under the action of the resulting radiation force. These results suggest that in rocket engines, because of the large number of injectors, a spatial redistribution of the spray could occur and lead to inhomogeneous combustion producing high-frequency combustion instabilities.
APA, Harvard, Vancouver, ISO, and other styles
6

Martinelli, Sheri, and Charles Holland. "Effects of seabed curvature on the scattered acoustic field." Journal of the Acoustical Society of America 139, no. 4 (April 2016): 2168. http://dx.doi.org/10.1121/1.4950432.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Golak, Slawomir, and Roman Przylucki. "Modeling Acoustic Effects During Casting Nanocomposites Under Electromagnetic Field." IEEE Transactions on Magnetics 50, no. 2 (February 2014): 289–92. http://dx.doi.org/10.1109/tmag.2013.2279273.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sarıgül, A. Saide, and Erkan Karagözlü. "Vibro-acoustic coupling in composite plate-cavity systems." Journal of Vibration and Control 24, no. 11 (January 10, 2017): 2274–83. http://dx.doi.org/10.1177/1077546316685209.

Full text
Abstract:
Composite materials are extensively utilized today as strategic products. Although this widespread use, their vibro-acoustics characteristics have not been examined extensively. Specifically, the interactive coupling between the vibration and acoustics of composite plate- cavity systems is an untapped field. In this paper, the results of a modal structural-acoustic coupling analysis for plates with different composite parameters are presented. Natural frequencies of the coupled systems are tabulated. The effects of material, ply angle and number of layers on the coupled vibro-acoustic characteristics of composite plate-cavity systems have been examined and compared with the behaviour of isotropic plate systems.
APA, Harvard, Vancouver, ISO, and other styles
9

Ye, S. G., X. F. Gong, and X. Z. Liu. "Nonlinear effects on acoustic field measurement in biomedical frequency range." Journal of the Acoustical Society of America 99, no. 4 (April 1996): 2539–74. http://dx.doi.org/10.1121/1.415832.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Qu, Xiaopeng, and Huihe Qiu. "Thermal Bubble Dynamics Under the Effects of an Acoustic Field." Heat Transfer Engineering 32, no. 7-8 (June 2011): 636–47. http://dx.doi.org/10.1080/01457632.2010.509757.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Acoustic field effects"

1

Taracila, Victor. "HIGH-FIELD MRI ISSUES: FINITE WAVELENGTH EFFECTS, TRANSVERSE COIL DESIGN AND ACOUSTIC NOISE REDUCTION." online version, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1151698057.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kerechanin, Charles William II. "The effects of nozzle trailing edge modifications on the acoustic far field of Mach 2 Rectangular Jet." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204058108.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Shepherd, Micah Raymond. "The Effect of Nonlinear Propagation on Near-field Acoustical Holography." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2072.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sorasio, Gianfranco. "Nonlinear Dust Particle Dynamics and Collective Effects in Complex Plasmas." Doctoral thesis, Umeå : Univ, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-74.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Fouts, John Lyle. "Forming Screen Effect on Ultrasonic Beam Field." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/10423.

Full text
Abstract:
The aim of this study was to characterize the interaction between a pulsed ultrasonic wave and a paper forming screen for potential development of a smart paper forming sensor to measure velocity profile of the forming jet as it impinges on the wire. To achieve this goal, a Signal-Processing DOP 2000 pulsed ultrasonic Doppler velocimeter was used to generate a pulsed ultrasonic signal. The signal was transmitted and received using four different ultrasonic transducers: a 2 MHz 10 mm, 4 MHz 5 mm, 4MHz 8 mm focused, and 8 MHz 5 mm. The ultrasonic signals were then analyzed in order to determine the ultrasonic beam echo amplitude and shape. These tests were performed with and without various paper forming screens placed between the ultrasonic transducer and an ultrasonic signal target. Two different paper forming screens were utilized to study the interaction of the ultrasonic beam with the forming screens. The tests showed that the ultrasonic signal passing through the forming screens is greatly attenuated causing a sharp decrease in echo amplitude. To overcome the attenuation of the signal, a much higher amplification of the signal was used causing an increase in the saturation region around the forming screen. This increased the minimum distance that a target had to be away from the forming screen. The closest distance from the plastic sphere to the screen over the widest range of transducer-screen-distances that produced detectable echoes was achieved with the 4 MHz 5 mm transducer. The tests showed for both screens that there is more variation in beam width when the screen is moved laterally than when it is not moved at all. They also show that even though the pores in the forming screen are very small, they seem to have a great effect on the beam width measurements of the ultrasonic transducer.
APA, Harvard, Vancouver, ISO, and other styles
6

Wanklyn, Kevin Michael. "Experiments involving second order effects in high-intensity, high-frequency acoustic fields." Diss., Kansas State University, 2008. http://hdl.handle.net/2097/12200.

Full text
Abstract:
Doctor of Philosophy
Department of Mechanical and Nuclear Engineering
Sameer I. Madanshetty
Cavitation is a long studied phenomenon, fascinating and varied. Observed cavitation thresholds vary, typically ranging from the vapor pressure of the liquid to several atmospheres. Recent studies in cavitation involving very clean liquids give rise to thresholds that surpass 100 atmospheres. Calibrating such high intensity, high frequency, focused acoustic fields presents a significant challenge. The present investigation describes how it is possible to exploit the second order acoustic effect of radiation pressure to seek reliable calibration of the high intensity acoustic fields. Experiments describe how to account for the attendant second order effect of acoustic streaming in the evaluation of the radiation force to accomplish meaningful calibration. Beyond the measurement of the second order quantities associated with cavitation, the work also presents a first investigation of a direct estimation of implosion energies of collapsing bubbles near well-characterized surfaces.
APA, Harvard, Vancouver, ISO, and other styles
7

Wang, Bin. "Reduction of acoustic fields of horn-like structures by optimization of network resonators." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1155/document.

Full text
Abstract:
Le bruit généré dans la zone de contact entre un pneumatique et une route peut être amplifié par des dièdres constitués des surfaces du pneumatique et la route. Cette étude est consacrée à l'optimisation et à la conception de bandes de roulement et de textures de la route pour réduire l'amplification de l'effet dièdre sur la base de l'annulation de sons. Les bandes de roulement et les textures de la route peuvent être considérées comme deux réseaux dans la zone de contact. Les surfaces du pneumatique et de la route peuvent être considérées comme des baffles. Un modèle de réseau à baffle est constitué pour le système pneumatique / chaussée, et des procédés de couplage multi-domaines sont développés pour le calcul des champs acoustiques autour des réseaux à baffles. Avec ce modèle, la réduction des amplifications de l'effet dièdre par les réseaux peut être estimée. Étant donné que les réductions sont autour des fréquences de résonance de l'air à l'intérieur des réseaux, des méthodes numériques simples pour estimer les fréquences de résonance sont développées. Afin de concevoir des réseaux pour obtenir les fréquences de résonance recherchées, une méthode d'optimisation sur la base des algorithmes génétiques est proposée. Les méthodes d'estimation des fréquences de résonance sont validées avec des mesures. Les méthodes d'optimisation et le modèle des réseaux bafflés sont également vérifiées par les expériences. Une structure avec un cylindre en bois et une feuille de contreplaqué est construite pour les validations. Un vrai pneumatique sur une feuille de contreplaqué est également mesuré et calculé avec les méthodes proposées. Les bandes de roulement sont optimisées avec les méthodes proposées. Plusieurs réductions des amplifications de l'effet dièdre peuvent être vues et sont estimées avec les méthodes de couplage multi-domaines. La dimension des motifs de texture de la route est également étudiée afin de trouver les réductions maximales des amplifications
The noise generated in the contact zone between a tire and a road can be amplified by horns constituted of the surfaces of the tire and the road. This study is devoted to the optimization and the design of tire treads and road textures for reducing the amplification of horn effect based on the sound cancellation. The tire treads and the road textures can be considered as two dimensional networks in the contact zone. The surfaces of the tire and the road can be seen as flanges. A model of flanged networks is established for the tire/road system, and multi-domain coupling methods are developed for the calculation of the acoustic fields around the flanged networks. With this model the reductions of the amplifications of horn effect by the networks can be estimated. Since the reductions are around the resonant frequencies of air inside the networks, simple numerical methods for estimating the resonant frequencies are developed. In order to design the networks to get wanted resonant frequencies, an optimization method based on genetic algorithms is proposed. The methods for estimating the resonant frequencies are validated with measurements. The optimization methods and the model of the flanged networks are also proved to be effective by the experiments. The wooden networks between a wooden cylinder and a sheet of plywood are built for the validation. A real tire on a sheet of plywood is also measured and calculated with the proposed methods. Last the tire treads are optimized with the optimization methods. Multiple reductions of the amplifications of horn effect can be seen and are estimated with the multi-domain coupling methods. The road brick dimension is also investigated in order to find the maximum reductions of the amplifications
APA, Harvard, Vancouver, ISO, and other styles
8

Narra, Venkateswarlu. "High Frequency Acoustic Wave Scattering From Turbulent Premixed Flames." Diss., Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22689.

Full text
Abstract:
This thesis describes an experimental investigation of high frequency acoustic wave scattering from turbulent premixed flames. The objective of this work was to characterize the scattered incoherent acoustic field and determine its parametric dependence on frequency, flame brush thickness, incident and measurement angles, mean velocity and flame speed. The experimental facility consists of a slot burner with a flat flame sheet that is approximately 15 cm wide and 12 cm tall. The baseline cold flow characteristics and flame sheet statistics were extensively characterized. Studies were performed over a wide range of frequencies (1-24 kHz) in order to characterize the role of the incident acoustic wave length. The spectrum of the scattered acoustic field showed distinct incoherent spectral sidebands on either side of the driving frequency. The scattered incoherent field was characterized in terms of the incoherent field strength and spectral bandwidth and related to the theoretical predictions. The role of the flame front wrinkling scale, i.e., flame brush thickness, was also studied. Flame brush thickness was varied independent of the mean velocity and flame speed by using a variable turbulence generator. Results are reported for five flame brush thickness cases, ranging from 1.2 mm to 5.2 mm. Some dependence of scattered field characteristics on flame brush thickness was observed, but the magnitude of the effect was much smaller than expected from theoretical considerations. The spatial dependence of the scattered field was investigated by measuring the scattered field at four measurement angles and exciting the flame at four incident angles. Theory predicts that these variations influence the spatial scale of the acoustic wave normal to the flame, a result confirmed by the measurements. Measurements were performed for multiple combinations of mean velocities and flame speeds. The scattered field was observed to depend strongly on the flame speed. Further analysis suggested that the change in orientation angle distribution with flame speed had a large influence on the scattered field. The scattered field characteristics did not show any appreciable change with mean velocity. This result was expected since flame brush thickness characteristics themselves exhibit a weak velocity dependence.
APA, Harvard, Vancouver, ISO, and other styles
9

LI, ZHISONG. "NUMERICAL SIMULATION OF SIDEWALL EFFECTS ON ACOUSTIC FIELDS IN TRANSONIC CAVITY FLOW." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1172869775.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rockliff, Dawn. "Application of particle image velocimetry to the measurement of non-linear effects generated by high-intensity acoustic fields." Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/11329.

Full text
Abstract:
Non-linear effects are known to occur in high intensity sound fields and have important consequences in the study of a diverse range of applications from medical imaging to musical instruments. Particle Image Velocimetry (PIV) is used to obtain full-field instantaneous velocity information without physical intrusion into the acoustic field. After a review of the theory of PIV, the technique is applied to the investigation of non-linear effects on acoustic streaming in a closed-end cylindrical tube. A distortion of the streaming motion is observed with increasing sound intensity and a comparison to theoretical work is presented. PIV is then used in conjunction with pressure measurements to examine the non-linear behaviour at the termination of a open-ended cylindrical tube. The results are compared to acoustic measurements of the non-linear radiation impedance using conventional techniques. The work is then extended through the introduction of side holes into the open tube. PIV measurements of the streaming motion as a function of frequency and intensity are made and used to draw comparisons with the streaming behaviour present at the toneholes of a modern Boehm flute under normal playing conditions. The results from this work clearly show that PIV has the potential to provide a better understanding of acoustical fields in situations where non-linear effects can have a significant influence, such as that found on musical instruments.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Acoustic field effects"

1

Holmes, Christopher David. Acoustic Casimir effect. Monterey, Calif: Naval Postgraduate School, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

S, Childress Otis, Hardesty Mark, and Langley Research Center, eds. Helicopter main-rotor speed effects on far-field acoustic levels. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, [Springfield, Va., 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

S, Childress Otis, Hardesty Mark, and Langley Research Center, eds. Helicopter main-rotor speed effects on far-field acoustic levels. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, [Springfield, Va., 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

S, Childress Otis, Hardesty Mark, and Langley Research Center, eds. Helicopter main-rotor speed effects on far-field acoustic levels. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, [Springfield, Va., 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Römer, Heiner. Acoustic communication. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198797500.003.0012.

Full text
Abstract:
This chapter, takes a broad look at insect acoustic communication, by including near-field and far-field sound, as well as substrate vibration, as signals. These mechanical disturbances differ greatly in their physical properties—they propagate in their natural environments over distances that can span from a few millimetres up to several hundred metres. Therefore, background information is provided to understand how the insect sound-emitting systems for the different signals work and in which behavioral contexts they are used. Evidence is also provided to describe the substantial changes signals undergo on their way to receivers, the effects of background noise on communication and how unintended receivers may represent costs in this system. Finally, a short overview of the structure and evolution of the tremendous diversity of sensory receptors is presented.
APA, Harvard, Vancouver, ISO, and other styles
6

Condon, Barrie, and Jennifer MacFarlane. Magnetic resonance imaging. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199655212.003.0024.

Full text
Abstract:
Magnetic resonance imaging employs strong electromagnetic fields that present a variety ofhazards. This chapter considers the interaction of the strong magnetic field with externalferromagnetic objects and those implanted in the body. The interaction of strong RF fieldscan induce currents in wires and cables which can, in certain circumstances, result in burns.By the same mechanism, excessive heating can be caused in passive implanted devicesand the operation of active implants can fail or be critically altered. The direct impact of theMR environment on the human body is described in terms of the effect of (i) the staticmagnetic field, (ii) movement through the static magnetic field, (iii) the heating effects of theRF field, and (iv) the acoustic noise. The risks involved in the use of cryogens are brieflydiscussed. Finally, practical safety procedures are recommended.
APA, Harvard, Vancouver, ISO, and other styles
7

Ducted fan acoustic radiation including the effects of nonuniform mean flow and acoustic treatment. Rolla, Mo: Dept. of Mechanical and Aerospace Engineering and Engineering Mechanics, Univ. of Missouri-Rolla, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

The potential use of underwater acoustics for control of zebra mussels: Field studies : RAC Project No. 690C : final report. [Toronto]: Ministry of Environment and Energy, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bouteneff, Peter C., Jeffers Engelhardt, and Robert Saler, eds. Arvo Pärt. Fordham University Press, 2020. http://dx.doi.org/10.5422/fordham/9780823289752.001.0001.

Full text
Abstract:
Scholarly writing on the music of Arvo Pärt is situated primarily in the fields of musicology, cultural and media studies, and, more recently, in terms of theology/spirituality. Arvo Pärt: Sounding the Sacred focuses on the representational dimensions of Pärt’s music (including the trope of silence), writing and listening past the fact that its storied effects and affects are carried first and foremost as vibrations through air, impressing themselves on the human body. In response, this ambitiously interdisciplinary volume asks: What of sound and materiality as embodiments of the sacred, as historically specific artifacts, and as elements of creation deeply linked to the human sensorium in Pärt studies? In taking up these questions, the book “de-Platonizes” Pärt studies by demystifying the notion of a single “Pärt sound.” It offers innovative, critical analyses of the historical contexts of Pärt’s experimentation, medievalism, and diverse creative work; it re-sounds the acoustic, theological, and representational grounds of silence in Pärt’s music; it listens with critical openness to the intersections of theology, sacred texts, and spirituality in Pärt’s music; and it positions sensing, performing bodies at the center of musical experience. Building on the conventional score-, biography-, and media-based approaches, this volume reframes Pärt studies around the materiality of sound, its sacredness, and its embodied resonances within secular spaces.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Acoustic field effects"

1

Auger, J. M., and J. M. Ville. "Flow Effects on Measurement of the Modal Decomposition of Acoustic Field in a Hard Wall Cylindrical Duct." In Aero- and Hydro-Acoustics, 437–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82758-7_41.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Warnke, Ulrich. "ELF-Pulsating Magnetic Field (PEMF)-Induced Acoustic Effects in Vessel Walls — an Adequate Stimulation of Baroreceptors ?" In Electromagnetic Fields and Biomembranes, 117–27. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4615-9507-6_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Guerra, Melania, Peter J. Dugan, Dimitri W. Ponirakis, Marian Popescu, Yu Shiu, Aaron N. Rice, and Christopher W. Clark. "High-Resolution Analysis of Seismic Air Gun Impulses and Their Reverberant Field as Contributors to an Acoustic Environment." In The Effects of Noise on Aquatic Life II, 371–79. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-2981-8_44.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sobotka, Jerzy. "Effects of Electric and Acoustic Field Interaction in Porous Media Saturated with Water or Hydrocarbons: Laboratory Modeling." In Reservoir Rock Diagnostics for Water or Hydrocarbon Exploration, 21–36. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31049-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ando, Yoichi. "Subjective Effects of Sound Field on Performers." In Architectural Acoustics, 109–19. New York, NY: Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4612-0609-5_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mozhaev, Vladimir. "Effects of Self-Action — Unexplored Field of Nonlinear Acoustics of Solid Surfaces." In Physical Acoustics, 523–27. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9573-1_69.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Smith, J. F., O. Diachok, R. Heitmeyer, and E. Livingston. "Stochastic Bathymetric Effects on Matched Field Processing." In Full Field Inversion Methods in Ocean and Seismo-Acoustics, 273–78. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_44.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Mcdonald, B. Edward, Joe Lingevitch, and Michael Collins. "Effects of Environmental Variability on Focused Acoustic Fields." In Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance, 377–83. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0626-2_47.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gubbini, A., C. Lamberti, P. Palchetti, and A. Sarti. "The Effect of Cross-Coupling in the Acoustic Field Generated by a Phased Array Transducer." In Acoustical Imaging, 479–82. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4419-8772-3_77.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Halloran, Andrew R., and Sarah Mancz. "Acoustic Determinants to Group-Specific Vocalizations and Dialect: The Effects of Environment on Infant Vocalizations of Cebus capucinus, and Utilizing Two Field Sites with a Shared Taxon for a Comparative Ecological Study." In Central American Biodiversity, 487–93. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2208-6_20.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Acoustic field effects"

1

Ficuciello, Antonio, Françoise J. Baillot, Jean Bernard Blaisot, Christine Richard, and Marie Théron. "High Amplitude Acoustic Field Effects on Air-Assisted Liquid Jet." In 52nd AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-5085.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Gikadi, Jannis, Thomas Sattelmayer, and Antonio Peschiulli. "Effects of the Mean Flow Field on the Thermo-Acoustic Stability of Aero-Engine Combustion Chambers." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69612.

Full text
Abstract:
This paper presents a finite element methodology to predict the thermoacoustic eigenmodes of combustion chambers using the linearized Navier-Stokes equations (LNSE) in frequency space. The effect of the mean flow on the acoustics is accounted for. Besides scattering and refraction of acoustic waves in shear layers, this set of equation describes two main damping mechanisms. One is related to the generation of entropy waves, so called hot-spots, in flame regions. The other is related to the transformation of acoustic energy into vorticity waves at sharp leading or trailing edges. Both fluctuation types, i.e. entropy and vorticity, are convected by the mean flow, leading to significant damping when the fluid discharges into an open outlet. In combustion chamber environments these waves are accelerated in the downstream high pressure distributor and are partially transformed back into acoustic waves constituting to the feedback loop of thermo-acoustic instabilities. Accurate prediction of the eigenmodes and eigenfrequencies of instability require therefore to take these interaction effects into account. First, the accuracy of the LNSE approach, to capture the damping generated by the first mechanism of entropy generation and convection, is investigated for a generic premixed flame configuration. Solutions of the LNSE are compared to the analytic solutions as well as eigenvalues determined by an Helmholtz ansatz. Later methodology assumes a quiescent medium and neglects all interactions of acoustics with the mean flow. It is shown that large errors are introduced with increasing Mach-number. To illustrate errors assuming a quiescent medium for realistic combustion chambers, the LNSE are used to assess the eigenmodes of a two-dimensional aero-engine combustor including strong shear regions, in the next step. The non-isothermal mean flow field is obtained performing an incompressible RANS simulation. It features an expanding jet with inner and outer recirculation zones. The acoustic computations using LNSE reveal a set of unstable and neutral hydrodynamic modes in addition to acoustic modes. Both damping mechanisms are present and contribute to the overall system stability. Again the obtained solution is compared to the solution of an Helmholtz code and differences are discussed.
APA, Harvard, Vancouver, ISO, and other styles
3

Wagner, S. R., C. MacBeth, and W. D. Pennington. "Effects of Spectral Content on Inversion for Acoustic Impedance, Foinaven Field." In 65th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.6.d24.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kuo, Ching-Wen, Jeremy Veltin, and Dennis McLaughlin. "Effects of Jet Noise Source Distribution on Acoustic Far-Field Measurements." In 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-474.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Burd, David, Walter Eversman, Judith Gallman, and Mary Drouin. "Effects of Two DOF Liner Tolerances on Modeled Far Field Acoustic Attenuation." In 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference). Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-3109.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Chehroudi, Bruce, Dustin Davis, and Doug Talley. "The Effects of Pressure and Acoustic Field on a Cryogenic Coaxial Jet." In 42nd AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-1330.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Li, Zhisong, Awatef Hamed, and Debashis Basu. "Numerical Simulation of Sidewall Effects on the Acoustic Field in Transonic Cavity." In 45th AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-1456.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sun, Deshuai, and Qingjie Guo. "Combination Effects of Acoustic Field and Humidity on Removal of Inhalable Particles." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162524.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Escudero, David R., and Theodore J. Heindel. "Acoustic Field Effects on Minimum Fluidization Velocity in a 3D Fluidized Bed." In ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72041.

Full text
Abstract:
Fluidized beds are used in a variety of process industries because they provide uniform temperature distributions, low pressure drops, and high heat/mass rates. Minimum fluidization velocity is an important factor in understanding the hydrodynamic behavior of fluidized beds, and this characteristic may be modified through high frequency (sound) vibrations. The effects caused by sound wave frequency on the minimum fluidization velocity in a 3D fluidized bed are investigated in this study. Experiments are carried out in a 10.2 cm ID cold flow fluidized bed filled with glass beads with material density of 2600 kg/m3, and particles sizes ranging between 212–600 μm. In this study, four different bed height-to-diameter ratios are examined: H/D = 0.5, 1, 1.5, and 2. Moreover, the sound frequency of the loudspeaker used as the acoustic source ranges between 50–200 Hz, with a sound pressure level fixed at 110 dB. Results show that the minimum fluidization velocity is influenced by the frequency change. As the frequency increases, the minimum fluidization velocity decreases until a specific frequency is reached, beyond which the minimum fluidization velocity increases. Thus, acoustic fields provide an improvement in the ease of fluidization of these particles.
APA, Harvard, Vancouver, ISO, and other styles
10

Mihaˇescu, Mihai, Ro´bert-Zolta´n Sza´sz, Laszlo Fuchs, and Ephraim Gutmark. "Flow and Noise Investigations of a Separate Flow Exhaust System." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68164.

Full text
Abstract:
A major component of aircraft noise is the jet noise created by the high velocity hot stream exhausting from a jet engine, interacting with itself and with the surrounding cold air. In the present paper the flow and acoustic fields that are generated by two coaxial jets are considered. Numerically, the problem is divided into a flow related part (Navier-Stokes system of equation) and an acoustic part (an inhomogeneous wave equation). The flow field is handled by well resolved Large Eddy Simulation (LES). The acoustical sources can then be computed from the flow field calculations, on the near-field “source” grid. The acoustic field is solved, on the same or even on a larger separate grid, by using an acoustic approximation with appropriate acoustic boundary conditions. The computed flow and acoustical fields are compared to those measured on the separate flow nozzle test facility. The comparisons in terms of velocity and sound pressure levels are shown to validate the used approach. Frequency spectra of the acoustic density fluctuation are presented in order to indicate the locations where the high- or low- frequency noise dominates. The numerical study is focused as well on the Reynolds number effects on the flow and acoustics.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Acoustic field effects"

1

Quinn, Meghan. Geotechnical effects on fiber optic distributed acoustic sensing performance. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41325.

Full text
Abstract:
Distributed Acoustic Sensing (DAS) is a fiber optic sensing system that is used for vibration monitoring. At a minimum, DAS is composed of a fiber optic cable and an optic analyzer called an interrogator. The oil and gas industry has used DAS for over a decade to monitor infrastructure such as pipelines for leaks, and in recent years changes in DAS performance over time have been observed for DAS arrays that are buried in the ground. This dissertation investigates the effect that soil type, soil temperature, soil moisture, time in-situ, and vehicle loading have on DAS performance for fiber optic cables buried in soil. This was accomplished through a field testing program involving two newly installed DAS arrays. For the first installation, a new portion of DAS array was added to an existing DAS array installed a decade prior. The new portion of the DAS array was installed in four different soil types: native fill, sand, gravel, and an excavatable flowable fill. Soil moisture and temperature sensors were buried adjacent to the fiber optic cable to monitor seasonal environmental changes over time. Periodic impact testing was performed at set locations along the DAS array for over one year. A second, temporary DAS array was installed to test the effect of vehicle loading on DAS performance. Signal to Noise Ratio (SNR) of the DAS response was used for all the tests to evaluate the system performance. The results of the impact testing program indicated that the portions of the array in gravel performed more consistently over time. Changes in soil moisture or soil temperature did not appear to affect DAS performance. The results also indicated that time DAS performance does change somewhat over time. Performance variance increased in new portions of array in all material types through time. The SNR in portions of the DAS array in native silty sand material dropped slightly, while the SNR in portions of the array in sand fill and flowable fill material decreased significantly over time. This significant change in performance occurred while testing halted from March 2020 to August 2020 due to the Covid-19 pandemic. These significant changes in performance were observed in the new portion of test bed, while the performance of the prior installation remained consistent. It may be that, after some time in-situ, SNR in a DAS array will reach a steady state. Though it is unfortunate that testing was on pause while changes in DAS performance developed, the observed changes emphasize the potential of DAS to be used for infrastructure change-detection monitoring. In the temporary test bed, increasing vehicle loads were observed to increase DAS performance, although there was considerable variability in the measured SNR. The significant variation in DAS response is likely due to various industrial activities on-site and some disturbance to the array while on-boarding and off-boarding vehicles. The results of this experiment indicated that the presence of load on less than 10% of an array channel length may improve DAS performance. Overall, this dissertation provides guidance that can help inform the civil engineering community with respect to installation design recommendations related to DAS used for infrastructure monitoring.
APA, Harvard, Vancouver, ISO, and other styles
2

Rodriguez, Juan I., Ivett A. Leyva, Douglas Talley, and Bruce Chehroudi. Effects of a Variable-Phase Transverse Acoustic Field on a Coaxial Injector at Subcritical and Near-Critical Conditions (Preprint). Fort Belvoir, VA: Defense Technical Information Center, May 2008. http://dx.doi.org/10.21236/ada482957.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Muhlestein, Michael, and Carl Hart. Geometric-acoustics analysis of singly scattered, nonlinearly evolving waves by circular cylinders. Engineer Research and Development Center (U.S.), October 2020. http://dx.doi.org/10.21079/11681/38521.

Full text
Abstract:
Geometric acoustics, or acoustic ray theory, is used to analyze the scattering of high-amplitude acoustic waves incident upon rigid circular cylinders. Theoretical predictions of the nonlinear evolution of the scattered wave field are provided, as well as measures of the importance of accounting for nonlinearity. An analysis of scattering by many cylinders is also provided, though the effects of multiple scattering are not considered. Provided the characteristic nonlinear distortion length is much larger than a cylinder radius, the nonlinear evolution of the incident wave is shown to be of much greater importance to the overall evolution than the nonlinear evolution of the individual scattered waves.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Acoustic field effects' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography