Results 21 to 30 of about 1,103,393 (248)
Parametric resonance in the ultracold Rydberg plasma under the influence of an acoustic wave
Геофизический журнал, 2020 The article considers weakly ionized ultracold Rydberg plasma under the influence of an acoustic wave of the terahertz range. The effect of an acoustic wave on Langmuir oscillations of Rydberg plasma is described using a hydrodynamic approach.
V.M. Rylyuk, L.M. Kuzmina, M.I. Skipa
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Dispersive coherent Brillouin scattering spectroscopy
Photoacoustics, 2023 Frequency- and time-domain Brillouin scattering spectroscopy are powerful tools to read out the mechanical properties of complex systems in material and life sciences.
Ayumu Ishijima +3 more
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Investigation into a prominent 38 kHz scattering layer in the North Sea [PDF]
, 2008 The aim of this study was to investigate the composition of an acoustic scattering layer in the North Sea that is particularly strong at 38 kHz. A full definition of the biological composition of the layer, along with its acoustic properties, would allow
Mair, Angus MacDonald
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Simulation and analysis on low-frequency scattering characteristics of the finite cylindrical shell in shallow water [PDF]
MATEC Web of Conferences, 2019 Low-frequency acoustic scatterings from a finite cylindrical shell are numerically analyzed by FEM. The simulation results show that the acoustic-scattering field in waveguide has lots of frequency-related sidelobes, while no sidelobes exist in free ...
Li Jinyu, Shang Dejiang, Xiao Yan
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Acoustic Scattering Characteristics of a Diver Propulsion Vehicle
水下无人系统学报, 2022 The acoustic stealth performance of a diver propulsion vehicle(DPV) is one of the key technologies of special operations that determines whether diver troops can penetrate secretly.
Jie LI, Jun FAN, Bing LI
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Research Progress of Locally Resonance Acoustic Metamaterials [PDF]
E3S Web of Conferences, 2021 Bragg scattering phonon crystal and locally resonant acoustic metamaterials were introduced. In order to generate noise reduction, the lattice constant of Bragg scattering phonon crystal should be of the same order of magnitude as the wave length of the ...
Zhehua Du
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Ilmu Kelautan, 2015 Underwater acoustic sampling techniques provide an advantage over traditional net-sampling for zooplankton research. The research presents a methodology for extracting both biological and physical information from high frequency sonar.
Henry M Manik
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An Open Access Chamber Designed for the Acoustic Characterisation of Microbubbles
Applied Sciences, 2022 Microbubbles are used as contrast agents in clinical ultrasound for Left Ventricular Opacification (LVO) and perfusion imaging. They are also the subject of promising research in therapeutics as a drug delivery mechanism or for sonoporation and co ...
Elliott Smith +8 more
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Research on the Modified Echo Highlight Model for Underwater Vehicles with Combined Structures
Polish Maritime Research, 2023 The highlight model is widely used as a simple and convenient method in the radar field but its accuracy is not high. Based on the traditional highlight model, the algorithm has been improved to address the acoustic scattering problems of underwater ...
Xie Xin +5 more
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Zhongguo Jianchuan YanjiuObjectiveTo design a compact underwater passive acoustic decoy with high target strength, this study proposes a novel structure in which a specific number of corner reflectors are uniformly embedded on a sphere following a spherical spiral pattern.
Zihao LIU +5 more
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