Broadband Terahertz Detection by Laser Plasma with Balanced Optical Bias
Sensors, 2022 Using a controlled optical bias and balanced geometry, we propose a new scheme for broadband terahertz detection by laser-gas interaction without high-voltage manipulation. Compared to the conventional optical bias scheme, the common noise is reduced and
Xu Sun +8 more
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Reduced dimension modeling of leading edge turbulent interaction noise [PDF]
, 2014 A computational aeroacoustics approach is used to model the effects of real airfoil geometry on leading edge turbulent interaction noise for symmetric airfoils at zero angle of attack.
Zhang, Xin +7 more
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Trailing Edge Noise Reduction by Passive and Active Flow Controls [PDF]
, 2014 This paper presents the results on the use of porous metal foams (passive control) and dielectric barrier surface plasma actuations (active control) for the reduction of vortex shedding tonal noises from the nonflat plate type trailing edge serration in ...
Kim, JH +7 more
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Large Eddy Simulation of the ACAT1 fan stage for broadband noise prediction
, 2023 International audienceA numerical study is carried out to assess the aerodynamic and noise radiation specific features of the ACAT1 fan stage, which was tested in the framework of the European project TurbonoiseBB. This study deals with the prediction of
Jacob, Marc +7 more
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Turbine Broadband Noise Predictions Using Linearised Frequency Domain Navier-Stokes Solvers
International Journal of Turbomachinery, Propulsion and Power, 2021 A linear frequency domain Navier-Stokes solver is used to retain the influence of turning, thickness, and main geometric parameters on turbine broadband noise.
Ricardo Blázquez-Navarro, Roque Corral
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Extraction method research on characteristic frequency band of underwater acoustic monitoring signal
Dianzi Jishu Yingyong, 2020 The underwater acoustic monitoring acquires a wide range of frequency bands, including multi-band feature information in the recording process, and doped with various kinds of noise.
Zhao Jie +4 more
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Active Noise Control Scheme for Smart Beds Based on a Wide and Narrow Band Hybrid Control Algorithm
IEEE Access, 2023 The importance of information intelligence in today’s society is growing as a result of advances in science and technology, and as intelligent technology is now a part of almost every aspect of people’s lives, demand for data collection ...
Guoqiang Lu, Renwen Chen, Hao Liu
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Journal of Computer Networks and Communications, 2016 This paper considers broadband potential of distribution Broadband over Power Lines (BPL) networks when different well-known noise models of the BPL literature are applied. The contribution of this paper is twofold.
Athanasios G. Lazaropoulos
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Prediction of contra-rotating open rotor broadband noise in isolated and installed configurations
, 2014 Broadband noise is a significant part of the noise emitted by contra-rotating open rotors. Several noise sources can contribute to the total broadband sound field, with the most dominant ones probably being trailing edge noise, rotor-wake interaction ...
Zhang, Xin +17 more
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Combination of Robust Algorithm and Head-Tracking for a Feedforward Active Headrest
Applied Sciences, 2019 Active headrest can reduce the low-frequency noise around ears based on the principle of active noise control. This paper presents a combination of robust algorithm and head-tracking for a feedforward active headrest to reduce the broadband noise for a ...
Rong Han +6 more
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