Results 21 to 30 of about 555,673 (291)
Communications, 2023 Adaptive algorithms are used in updating the filter coefficients for active noise cancellation applications in reduction of vehicle cabin noise. The performance of the adaptive algorithms in low-frequency noise cancellation depends on how efficiently it ...
Janak Kapoor +3 more
doaj +1 more source
Jute Felt for Noise Reduction: Understanding Effect of Pore Size Distribution
Journal of Natural Fibers, 2022 Effect of pore size and its distribution on the noise reduction coefficient of jute felt were studied through capillary flow porometer and impedance tube.
Gautam Basu +4 more
doaj +1 more source
International Journal of Aerospace Engineering, 2022 This paper presents a numerical investigation of unsteady surface blowing using periodic variations of jet velocity with azimuthal angle to reduce helicopter rotor blade-vortex interaction (BVI) noise.
Yan Sun, Guohua Xu, Yongjie Shi
doaj +1 more source
Frequency stabilization of a monolithic Nd:YAG ring laser by controlling the power of the laser-diode pump source [PDF]
, 2000 The frequency of a 700mW monolithic non-planar Nd:YAG ring laser (NPRO) depends with a large coupling coefficient (some MHz/mW) on the power of its laser-diode pump source.
Brozek, O. S. +4 more
core +2 more sources
Low multiplication noise thin Al0.6Ga0.4As avalanche photodiodes [PDF]
, 2001 Avalanche multiplication and excess noise were measured on a series of Al0.6Ga0.4As p+in+ and n+ip+ diodes, with avalanche region thickness, w ranging from 0.026 μm to 0.85 μm.
David, J.P.R. +5 more
core +1 more source
Advances in Mechanical Engineering, 2022 Due to the fault vibration signal of the rolling bearing is greatly interfered by the background noise, the fault features are easily submerged and result in a low fault diagnosis accuracy.
Jinghua Ma +5 more
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Aeroacoustic and aerodynamic performances of an aerofoil subjected to sinusoidal leading edges [PDF]
, 2015 This paper presents the preliminary results on the aeroacoustic and aerodynamic performances of a NACA65-(12)10 aerofoil subjected to 12 sinusoidal leading edges.
Chong, TP +5 more
core +1 more source
Numerical study on hydrodynamic performance and flow noise of a hydrofoil with wavy leading-edge
AIP Advances, 2021 Flow control based on bionics provides new research ideas for noise reduction. As one of the flow control methods, the wavy leading edge (WLE) inspired by the leading edge tubercles of the humpback whale is proposed in this paper.
Fang Li +3 more
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Quantum Kramers' equation for energy diffusion and barrier crossing dynamics in the low friction regime [PDF]
, 2002 Based on a true phase space probability distribution function and an ensemble averaging procedure we have recently developed [Phys. Rev. E 65, 021109 (2002)] a non-Markovian quantum Kramers' equation to derive the quantum rate coefficient for barrier ...
Bag, Bidhan Chandra +3 more
core +2 more sources
Experimental Study of Orifice Shape Effect on Noise Reduction of Silencer
Wasit Journal of Engineering Sciences, 2020 : Noise pollution is one of the most problems caused by internal combustion engines. In this study, the reduction of noise by changing the orifice shapes and inserting tape is experimentally investigation.
Muna S. Kassim +2 more
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