Results 11 to 20 of about 2,227,132 (290)
Computational modelling of acoustic scattering of a sound source in the vicinity of the ground [PDF]
, 2009 The paper presents a computational model for acoustic scattering of a near-the- ground sound source around a body moving in a uniform flow. Using the method of images and the concept of reflection coefficient, the half space Green's function in a ...
Pantazopoulou, Panagiota +1 more
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The scattering of sound waves in two-dimensional ducts with discontinuities in height and material property [PDF]
, 1999 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Eigen-mode matching techniques offer a versatile approach for solving acoustic scattering problems in ducts.
Warren, Daniel
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Emergence of liquid following laser melting of gold thin films
IUCrJ, 2023 X-ray structural science is undergoing a revolution driven by the emergence of X-ray Free-electron Laser (XFEL) facilities. The structures of crystalline solids can now be studied on the picosecond time scale relevant to phonons, atomic vibrations which ...
Ian K. Robinson +23 more
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Sound Scattering and Its Reduction by a Janus Sphere Type [PDF]
, 2014 Copyright © 2014 Delyia Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Sound
Kim, D, Miloh, T, AVITAL, E
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Acoustics, 2020 Several room acoustic parameters have to be considered in ordinary public rooms, such as offices and classrooms, in order to present the actual conditions, thus increasing demands on the acoustic treatment.
Emma Arvidsson +3 more
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Shock and Vibration, 2023 To alleviate the problem of unsatisfactory target strength and scattering stability of an underwater corner reflector, a method to enhance the acoustic scattering characteristics using a vacuum cavity as an acoustic reflecting layer is proposed. According to the principle of acoustic impedance mismatch of a water-reflecting layer, a vacuum cavity ...
Jingzhuo Zhang, Dawei Xiao, Taotao Xie
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Halide Perovskite: A Rich Source of Thermal Insulator. [PDF]
Adv Sci (Weinh)Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Ye H, Ge B, Yu Y, Zhou C.
europepmc +2 more sources
Journal of Marine Science and Engineering, 2021 Acoustic technology, as an important investigation method for fishery resources, has been widely used in zooplankton surveys. Since the Kuroshio–Oyashio confluence region has an extensive distribution of zooplankton, describing and analyzing the ...
Minghua Xue +3 more
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Acoustic scattering characteristics of several zooplankton groups [PDF]
ICES Journal of Marine Science, 1996 The acoustic echo levels from zooplankton are strongly dependent upon the acoustic frequency and size, shape, orientation, and material properties of the animals. Because of the great number of species of zooplankton, it is practical to study the acoustic properties of species grouped by their gross anatomical similarity. Zooplankton from several major
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مجلة بغداد للعلوم, 2007 We demonstrate the results of a mathematical model for investigation the nonlinear Stimulated Brillouin Scattering (SBS), which can be employed to achieve high optical amplifier.
Baghdad Science Journal
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