Results 81 to 90 of about 1,129,305 (370)
Advanced Functional Materials, EarlyView.The THz drive of the Mott insulating state of a rare‐earth nickelate induces instantaneous insulator‐metal transition via quantum tunneling of valence electrons across the bandgap. This transition is pure electronic and highly non‐thermal, which may find its applications in ultrafast opto‐electronics with enhanced performance and minimal device size ...
Gulloo Lal Prajapati +7 more
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Notes on Acoustic Impedance Measurement [PDF]
The Journal of the Acoustical Society of America, 1942 Considerable interest has been shown recently in tube methods for measurement of acoustic impedance and sound absorption coefficients. Construction details of a tube of the “fixed length, movable pickup” type are described, and direct reading charts for the determination of impedance and normal-incidence absorption coefficient are presented.
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Advanced Functional Materials, EarlyView.Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana +2 more
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Measurement of Specific Acoustic Impedance [PDF]
The Journal of the Acoustical Society of America, 1966 The theory of an experimental procedure that can be used to measure specific acoustic impedance is presented in this paper. No moving parts are required. Only two measurements need be made. A sequence of simple calculations is presented for reduction of these data.
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, 2004 Radiation of sound from a spherical piston, set in the side of a rigid sphere, undergoing harmonic radial surface vibrations in an acoustic halfspace is analyzed in an exact fashion using the classical method of separation of variables.
Azarpeyvand, M., Hasheminejad, S.M.
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Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications
Advanced Functional Materials, EarlyView.Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai +8 more
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Journal of the Acoustical Society of America, 2017 The ear-canal acoustic impedance and reflectance are useful for assessing conductive hearing disorders and calibrating stimulus levels in situ. However, such probe-based measurements are affected by errors due to the presence of evanescent modes and ...
Kren Rahbek Nørgaard +2 more
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Advanced Functional Materials, EarlyView.A visible light‐responsive polyacrylamide‐azobenzene hydrogel enables safe, reversible stiffness control for studying cell mechanobiology without harmful UV exposure. This approach reveals stem cells respond rapidly to mechanical changes, showing altered shape and protein distribution within one hour.
Aafreen Ansari +11 more
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Digital waveguide modeling for wind instruments: building a state-space representation based on the Webster-Lokshin model [PDF]
, 2010 This paper deals with digital waveguide modeling of wind instruments. It presents the application of state-space representations for the refined acoustic model of Webster-Lokshin.
Hélie, Thomas +2 more
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Journal of the Acoustical Society of America, 2016 The classic analytical model for the sound absorption of micro perforated materials is well developed and is based on a boundary condition where the velocity of the material is assumed to be zero, which is accurate when the material vibration is ...
Chenxi Li, B. Cazzolato, A. Zander
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