Academic literature on the topic 'Acoustic wave diffraction'

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Journal articles on the topic "Acoustic wave diffraction"

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Devaney, Anthony J. "Acoustic wave diffraction tomography." Journal of the Acoustical Society of America 110, no. 5 (2001): 2659. http://dx.doi.org/10.1121/1.4777061.

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Belyi, V. N., P. A. Khilo, N. S. Kazak, and N. A. Khilo. "Some features of acousto-optic interaction of optical and acoustic Bessel beams in transversely isotropic optically positive crystals." Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 55, no. 4 (2020): 479–88. http://dx.doi.org/10.29235/1561-2430-2019-55-4-479-488.

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Some basic properties of acousto-optical (AO) diffraction involving Bessel light and acoustic beams in anisotropic crystals are investigated. Hexagonal symmetry crystals are considered and are optically uniaxial and positive and acoustically transversely isotropic. It is shown that, unlike the case of AO diffraction of plane waves, the transition to Bessel beams allows one to realize a number of new diffraction channels having specific configurations of the wave vectors of interacting waves while maintaining the axial symmetry of the optical scheme as a whole. The diffraction channels for anis
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Wijewardena Gamalath, K. A. I. L., and G. L. A. U. Jayawardena. "Diffraction of Light by Acoustic Waves in Liquids." International Letters of Chemistry, Physics and Astronomy 4 (September 2013): 39–57. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.4.39.

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For the acusto-optic interactions in liquids, an equation for the diffraction light intensity was obtained in terms of Klein Cook parameter Q. With optimized parameters for Q, incident light wave length of λ = 633 nm, sound wave length of Λ = 0.1 mm, acusto-optic interaction length L=0.1 m, and refractive index of the liquid in the range of 1 to 2, the existence of ideal Raman-Nath and Bragg diffractions were investigated in terms of phase delay and incident angle. The ideal Raman-Nath diffraction slightly deviated when the Klein Cook parameter was increased from 0 to 1 for low phase delay val
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Minin, Igor, and Oleg Minin. "Mesoscale Acoustical Cylindrical Superlens." MATEC Web of Conferences 155 (2018): 01029. http://dx.doi.org/10.1051/matecconf/201815501029.

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We demonstrate experimentally for the first time the acoustojet (acoustic jets) formed from acoustic plane wave scattering by a penetrable cylindrical particle with dimensions of several wavelengths. It acts as a superlens with subwavelength localization of acoustical wave. During the scattering by elastic solid particles, additional internal shear waves are excited due to modes conversion. This mechanism allows achieving sharp focusing in the near-field zone. Such mesoscale single particle cylindrical lens may be considered as acoustic metamaterials free superlenses with resolution beyond the
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Devendran, Citsabehsan, Kyungyong Choi, Jongyoon Han, Ye Ai, Adrian Neild, and David J. Collins. "Diffraction-based acoustic manipulation in microchannels enables continuous particle and bacteria focusing." Lab on a Chip 20, no. 15 (2020): 2674–88. http://dx.doi.org/10.1039/d0lc00397b.

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We explore a unique diffractive acoustic phenomenon arising from a surface acoustic wave and channel elements, which we term diffractive acoustic surface acoustic waves (DASAW), which can be applied robustly for all channel orientations.
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Uzair, Mohammad, Xiao Li, Yangyang Fu, and Chen Shen. "Diffraction in phase gradient acoustic metagratings: multiple reflection and integer parity design." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (2021): 3167–75. http://dx.doi.org/10.3397/in-2021-2320.

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Diffraction occurs when acoustic waves are incident on periodic structures such as graded metasurfaces. While numerous interesting diffraction phenomena have been observed and demonstrated, the underlying mechanism of diffraction in these structures is often overlooked. Here we provide a generic explanation of diffraction in phase gradient acoustic metagratings and relate high-order diffractions to multiple reflections in the unit cells. As such, we reveal that the number of unit cells within the metagrating plays a dominant role in determining the diffraction patterns. It is also found that t
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Fedoseeva, E. V., V. V. Bulkin, and M. V. Kalinichenko. "TECHNIQUE FOR ESTIMATING THE EFFICIENCY OF NOISE PROTECTIVE ACOUSTIC SCREENS IN THE PRESENCE OF FLAT ANTI-DIFFRACTORS." Akustika, VOLUME 40 (2021): 22–28. http://dx.doi.org/10.36336/akustika20214022.

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To increase the efficiency of acoustic screens when protecting against acoustic noise, anti-diffractors are used to reduce the diffraction level on the upper edge of the screen. The aim of the work is to refine the mathematical model used to assess noise protection efficiency with the help of an acoustic screen with an installed one-sided flat-type anti-diffractor. The well-known techniques based on the principle of the amplitude dependence of the sound wave intensity from two sources are analyzed: a point-type noise source and a secondary cylindrical wave source - the screen edge, on which th
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Hakiri, Kentaro, Masashi Suzuki, and Shoji Kakio. "Acousto-optic Bragg diffraction using longitudinal leaky surface acoustic wave." Japanese Journal of Applied Physics 57, no. 7S1 (2018): 07LD01. http://dx.doi.org/10.7567/jjap.57.07ld01.

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WANG ZUO-QING, WANG CHENG-HAO, and ZHOU SU-HUA. "EXTRAORDINARY BRAGG DIFFRACTION OF SURFACE ACOUSTIC WAVE ON ACOUSTIC GRATING." Acta Physica Sinica 37, no. 3 (1988): 379. http://dx.doi.org/10.7498/aps.37.379.

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Vadilonga, Simone, Ivo Zizak, Dmitry Roshchupkin, et al. "Observation of sagittal X-ray diffraction by surface acoustic waves in Bragg geometry." Journal of Applied Crystallography 50, no. 2 (2017): 525–30. http://dx.doi.org/10.1107/s1600576717002977.

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X-ray Bragg diffraction in sagittal geometry on a Y-cut langasite crystal (La3Ga5SiO14) modulated by Λ = 3 µm Rayleigh surface acoustic waves was studied at the BESSY II synchrotron radiation facility. Owing to the crystal lattice modulation by the surface acoustic wave diffraction, satellites appear. Their intensity and angular separation depend on the amplitude and wavelength of the ultrasonic superlattice. Experimental results are compared with the corresponding theoretical model that exploits the kinematical diffraction theory. This experiment shows that the propagation of the surface acou
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Dissertations / Theses on the topic "Acoustic wave diffraction"

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Tew, R. "Imaging theory of surface-breaking discontinuities." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380008.

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Kearns, James A. "An investigation of the diffraction of an acoustic plane wave by a curved surface of finite impedance." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/16749.

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Millerat, Pierre. "Modélisation de la diffusion acoustique par un objet cylindrique : Application de la théorie géométrique de la diffraction." Valenciennes, 1994. https://ged.uphf.fr/nuxeo/site/esupversions/428e39ca-af7d-46a9-bb68-62b53d7f829e.

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Nous cherchons à appréhender le problème de la diffusion acoustique par un objet cylindrique. Cet objet étant soumis à une onde incidente plane normale au cylindre, nous établissons les relations théoriques indépendantes de la nature de l'objet et caractérisant le type de propagation. En utilisant la théorie géométrique de la diffraction, nous justifions la notion d'ondes de surface. Dans un second temps, nous étudions d'un point de vue théorique puis numérique les ondes diffusées par un cylindre fluide, un cylindre élastique et un tube élastique. Nous insistons plus particulièrement sur les c
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Uhrig, Matthias Pascal. "Numerical simulation of nonlinear Rayleigh wave beams evaluating diffraction, attenuation and reflection effects in non-contact measurements." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54368.

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Although several studies have proven the accuracy of using a non-contact, air-coupled receiver in nonlinear ultrasonic (NLU) Rayleigh wave measurements, inconsistent results have been observed when working with narrow specimens. The objectives of this research are first, to develop a 3D numerical finite element (FE) model which predicts nonlinear ultrasonic measurements and second, to apply the validated model on the narrow waveguide to determine causes of the previously observed experimental issues. The commercial FE-solver ABAQUS is used to perform these simulations. Constitutive law and e
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Du, Xinpeng. "Laser-Ultrasonic Measurement of Single-Crystal Elastic Constants from Polycrystalline Samples by Measuring and Modeling Surface Acoustic Wave Velocities." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524177819455643.

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Sahed, Hocine. "Détection et étude de la perturbation dûe à un défaut dans la paroi d'un réservoir cylindrique sous pression." Valenciennes, 1995. https://ged.uphf.fr/nuxeo/site/esupversions/f640c3d5-db1c-4f28-b1d6-8a393ac30dd2.

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L’expérience a montré que la présence d'un défaut peut modifier considérablement les caractéristiques mécaniques d'une structure et dans certains défavorables, la rendre critique. Le défaut peut souvent être détecté par l'observation de ses effets sur un champ extérieur appliqué. Pour cela, plusieurs techniques non-destructives (rayons x, ultrasonores, etc. ) ont été développées. L’objectif de notre travail est l'analyse théorique de la détection d'un défaut et du problème de singularité posé dans un réservoir cylindrique, à pression. Ce mémoire présente les deux aspects du problème. En contrô
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Malyarenko, Eugene V. "Lamb wave diffraction tomography." W&M ScholarWorks, 2000. https://scholarworks.wm.edu/etd/1539623991.

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As the worldwide aviation fleet continues to age, methods for accurately predicting the presence of structural flaws, such as hidden corrosion and disbonds, that compromise air worthiness become increasingly necessary. Ultrasonic guided waves, Lamb waves, allow large sections of aircraft structures to be rapidly inspected. However, extracting quantitative information from Lamb wave data has always involved highly trained personnel with a detailed knowledge of mechanical waveguide physics. In addition, human inspection process tends to be highly subjective, slow and prone to errors. The only pr
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Hofmann, Matthias. "TEM-Untersuchungen zum Gefüge und zu mechanischen Spannungen in Metallisierungen für SAW-Bauelemente." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1189001442992-14894.

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Higher frequencies in the MHz and GHz range and the increasing miniaturization lead to a higher load of the SAW (surface acoustic wave) metallizations. This higher SAW load and the intrinsic stresses result in a stress induced material transport, called acoustomigration. These microstructural changes can destroy the characteristic of the SAW device. Different Al based material combinations were investigated by different authors to improve the reliability of the metallizations and to delay the cost-intensive change to Cu based metallizations. The Cu based metallizations with TaSiN diffusion bar
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Rogoff, Zigmund M. "Diffraction of acoustic waves at fluid-solid boundaries." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319952.

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Hofmann, Matthias. "TEM-Untersuchungen zum Gefüge und zu mechanischen Spannungen in Metallisierungen für SAW-Bauelemente." Doctoral thesis, Technische Universität Dresden, 2006. https://tud.qucosa.de/id/qucosa%3A25031.

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Higher frequencies in the MHz and GHz range and the increasing miniaturization lead to a higher load of the SAW (surface acoustic wave) metallizations. This higher SAW load and the intrinsic stresses result in a stress induced material transport, called acoustomigration. These microstructural changes can destroy the characteristic of the SAW device. Different Al based material combinations were investigated by different authors to improve the reliability of the metallizations and to delay the cost-intensive change to Cu based metallizations. The Cu based metallizations with TaSiN diffusion bar
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Books on the topic "Acoustic wave diffraction"

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Medvedskiĭ, A. L. Metod poverkhnostnykh funkt︠s︡iĭ vlii︠a︡nii︠a︡ v nestat︠s︡ionarnykh zadachakh difrakt︠s︡ii. Moskovskiĭ gos. aviat︠s︡ionnyĭ in-t, 2007.

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Kleshchev, A. A. Gidroakusticheskie rasseivateli. "Sudostroenie", 1992.

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L, Dyshko A., and Maksimova N. O, eds. Difrakt͡s︡ii͡a︡ ploskoĭ zvukovoĭ volny na tonkom uprugom tele vrashchenii͡a︡. Vychislitelʹnyĭ t͡s︡entr AN SSSR, 1986.

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V, Pak T., ed. Difrakt͡sii͡a ploskoĭ zvukovoĭ volny na zhestkom vyti͡anutom sferoide. Vychislitelʹnyĭ t͡sentr AN SSSR, 1985.

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Abrahams, I. David. IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity: Proceeding of the IUTAM Symposium held in Manchester, United Kingdom, 16-20 July 2000. Springer Netherlands, 2002.

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United States. National Aeronautics and Space Administration., ed. An investigation of the diffraction of an acoustic plane wave by a curved surface of finite impedance: A thesis. Georgia Institute of Technology, 1990.

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An investigation of the diffraction of an acoustic plane wave by a curved surface of finite impedance: A thesis. Georgia Institute of Technology, 1990.

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Matula, Thomas John. Generation, diffraction and radiation of subsonic flexural waves on membranes and plates: Observations of structural and acoustical wavefields. 1993.

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Book chapters on the topic "Acoustic wave diffraction"

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Dhia, Anne-Sophie Bonnet-Ben, and Karim Ramdani. "Diffraction by a Locally Perturbed Acoustic Grating." In Mathematical and Numerical Aspects of Wave Propagation WAVES 2003. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55856-6_35.

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Merlen, A., S. Ben-Khelil, V. Preobrazhensky, and P. Pernod. "Acoustic Wave Phase Conjugation in Active Media." In IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-0087-0_15.

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Lasota, Henryk, and Bernard Delannoy. "Time — Domain Analysis of Acoustic Wave Propagation, Diffraction And Radiation." In Acoustical Imaging. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2523-9_61.

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Muskens, O. L., and J. I. Dijkhuis. "Propagation and Diffraction of Picosecond Acoustic Wave Packets in the Soliton Regime." In Optical Solitons. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-36141-3_18.

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Leroy, O., and G. N. Shkerdin. "The Mode Method in the Theory of Acoustic Wave Diffraction on Division Boundaries Between Different Structures." In Physical Acoustics. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9573-1_57.

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Sugimoto, N., and K. Tsujimoto. "Effects of Temperature Gradient on the Propagation of an Acoustic Solitary Wave in an Air-Filled Tube." In IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-0087-0_21.

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Tinel, Alain, Jean Duclos, and Michel Leduc. "Scholte Wave Diffraction by a Periodically Rough Surface." In Physical Acoustics. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9573-1_86.

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Wade, Glen. "Bulk-Wave Acousto-Optic Bragg Diffraction." In Springer Series in Electronics and Photonics. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75225-4_2.

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Mandelis, Andreas, and Kwan F. Leung. "Photothermal-Wave Diffraction and Interference in Condensed Media: Experimental Evidence in Aluminum." In Physical Acoustics. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9573-1_64.

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Hauser, M. R., R. L. Weaver, and J. P. Wolfe. "Internal Diffraction of Acoustic Waves in Silicon." In Springer Series in Solid-State Sciences. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84888-9_29.

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Conference papers on the topic "Acoustic wave diffraction"

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Demchenko, M. N. "Reconstruction of acoustic wave eld from boundary measurements." In International Conference 2017 Days on Diffraction (DD). IEEE, 2017. http://dx.doi.org/10.1109/dd.2017.8168002.

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Mohamed-Guled, I. M., and J. B. Lawrie. "Acoustic transmission through a silencer with wave-bearing boundaries." In International Seminar Day on Diffraction 2003. IEEE, 2003. http://dx.doi.org/10.1109/dd.2003.238184.

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Blagovestchenskii, A., and D. Fedorenko. "Inverse problem of acoustic wave propagation in a structure with weak lateral inhomogeneity." In DAYS on DIFFRACTION 2006. IEEE, 2006. http://dx.doi.org/10.1109/dd.2006.348169.

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Lapin, Victor. "Scattering of electromagnetic impulse on the standing ion-acoustic wave forced by the powerful electromagnetic wave in the liner plasma layer." In DAYS on DIFFRACTION 2006. IEEE, 2006. http://dx.doi.org/10.1109/dd.2006.348180.

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Gusev, Vladimir A. "Nonlinear acoustic wave propagation in the waveguide formed by the bottom bubble layer." In Days on Diffraction 2014 (DD). IEEE, 2014. http://dx.doi.org/10.1109/dd.2014.7036433.

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Gusev, Vladimir A., and Ruslan A. Zhostkow. "Analytical solutions for diffraction problem of nonlinear acoustic wave beam in the stratified atmosphere." In Days on Diffraction 2011 (DD). IEEE, 2011. http://dx.doi.org/10.1109/dd.2011.6094370.

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Liu, Yuan, Nazih Mechbal, Jean-Pierre Nikolovski, Moustapha Hafez, and Michel Verge. "Thin shell tactile sensing by acoustic wave diffraction patterns." In 2011 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2011. http://dx.doi.org/10.1109/icra.2011.5979883.

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Brooks, R. E. "Saw RF Spectrum Analyzer/Channelizer Using Acoustic Wave Diffraction." In 1986 Technical Symposium Southeast, edited by Dennis R. Pape. SPIE, 1986. http://dx.doi.org/10.1117/12.964337.

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Glushkov, E. V., N. V. Glushkova, and O. A. Miakisheva. "Guided wave generation and source energy partition in acoustic fluid with an immersed elastic plate." In 2016 Days on Diffraction (DD). IEEE, 2016. http://dx.doi.org/10.1109/dd.2016.7756835.

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Burova, Marina, Andreana Andreeva, Julian Burov, Angelos Angelopoulos, and Takis Fildisis. "Diffraction of acoustic wave through a slit with a finitethickness." In ORGANIZED BY THE HELLENIC PHYSICAL SOCIETY WITH THE COOPERATION OF THE PHYSICS DEPARTMENTS OF GREEK UNIVERSITIES: 7th International Conference of the Balkan Physical Union. AIP, 2010. http://dx.doi.org/10.1063/1.3322552.

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Reports on the topic "Acoustic wave diffraction"

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Marston, Philip L., and Curtis F. Osterhoudt. Evanescent Acoustic Wave Scattering by Targets and Diffraction by Ripples. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada612236.

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Marston, Philip L., and Curtis F. Osterhoudt. Evanescent Acoustic Wave Scattering By Targets and Diffraction by Ripples. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada573194.

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Osterhoudt, Curtis F., and Philip L. Marston. Evanescent Acoustic Wave Scattering by Targets and Diffraction by Ripples Graduate Traineeship Award in Ocean Acoustics. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada471354.

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