Results 11 to 20 of about 5,639 (310)
Frontiers in Physics, 2022 We report the numerical and experimental realization of a type of ultrathin planar wall with low-frequency dual-band sound absorption. The proposed planar wall is constructed by a periodic subwavelength unit cell (with a thickness of λ/19) which consists
Yu-wei Xu +10 more
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Acoustic analogs for solving problems in solid-state physics [PDF]
The Journal of the Acoustical Society of America, 1990 A basic problem in theoretical solid-state physics is to solve the Schrödinger equation for an electron in the scattering field of some very large number of ions, which is certainly a formidable problem. Fortunately, for a crystal the scattering field is periodic, and one may use Bloch's theorem and obtain a manageable calculation.
J. D. Maynard, M. J. McKenna
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50th Jubilee Winter School on Wave and Quantum Acoustics XLIXth Winter School on Environmental Acoustics and Vibroacoustics Szczyrk, Poland, 28 February – 3/4 March, 2022 [PDF]
Archives of Acoustics, 2022 On behalf of Upper Silesian Division of the Polish Acoustical Society (main organizer) and Committee of Acoustics of the Polish Academy of Sciences (coorganizers) we are pleased to announce that according to many years of tradition the above-mentioned ...
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Nature Communications, 2021 CO2 conversion driven by light is a promising strategy to synchronously overcome global warming and energy-supply issues. Here the authors show that the sulfur defect engineering on a quaternary AgInP2S6 atomic layer can excitingly change the CO2 ...
Wa Gao +11 more
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Hydrodynamics, acoustics and scaling of traveling bubble cavitation [PDF]
, 1994 Recent observations of the geometries of growing and collapsing bubbles over axisymmetric headforms have revealed the complexity of the "microfluidmechanics" associated with these flows (Hamilton et al., 1982, Briancon Marjollet and Franc, 1990, Ceccio ...
Kuhn de Chizelle, Yan P.
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Acoustics of Drop Impact on Hydrophobic Surfaces and Liquid Pools [PDF]
, 2022 Drop impact on surfaces has been studied comprehensively as it has a wide range of fundamental and practical implications. The splash, spreading, and rebound have been investigated with respect to substrate interfaces with hydrophobic surfaces being of ...
Kiyama, Akihito +7 more
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AIP Advances, 2015 SiO2/Si core-shell nanowires array coated with gap-rich silver nanoparticles were demonstrated as a highly reproducible surface-enhanced Raman scattering (SERS) substrate.
Xiao-Ying Liu +4 more
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Broadband low-frequency sound absorption in open tunnels with deep sub-wavelength Mie resonators
Frontiers in Physics, 2022 We report both experimentally and numerically that near-perfect absorption of low-frequency sound is realized in an open tunnel embedded with two deep sub-wavelength (0.085 λ) Mie resonators. The resonators are composed of a multiple-cavity structure and
Jianping Xia +14 more
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Non-contact ultrasonic measurements of the elastic constants of magnetic materials [PDF]
, 2011 Ultrasonic testing using contacting transducers such as quartz or PZT is well established. However, standard measurement techniques used require physical contact of the sample and ultrasonic transducer and some sort of couplant between the two. With this
D Stone +13 more
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Analytical investigation of nonreciprocal response in 1D nonlinear photonic crystals
Scientific Reports, 2017 The nonreciprocal response of the SHG process in 1D periodical nonlinear photonic crystals with a defect embedded has been theoretically studied by solving the nonlinear coupled equations. The nonreciprocal response has been deduced analytically with the
Ronger Lu +7 more
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