Results 11 to 20 of about 11,582,841 (294)
Effects of low frequency noise on sleep.
Noise & health, 2004 Low frequency noise (20-200 Hz) is emitted by numerous sources in the society. As low frequencies propagate with little attenuation through walls and windows, many people may be exposed to low frequency noise in their dwellings. Sleep disturbance, especially with regard to time to fall asleep and tiredness in the morning, are commonly reported in case ...
Persson Waye, Kerstin,
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Extremely low frequency based communication link [PDF]
, 2009 The paper discusses the literature review and the possibility of using the ground itself as transmission medium for various users’ transceivers and an administrator transceiver using Multi-Carrier-Direct Sequence-Code Division Multiple Access (MC-DS-CDMA)
Holmes, Violeta +3 more
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Design of multi-channel low phase noise synchronous frequency source
Dianzi Jishu Yingyong, 2021 In order to meet the requirement of high stability frequency source when DRFM(Digital Radio Frequency Memory) system collects external input signals, a design method of multi-channel, low phase noise synchronous frequency source based on two-stage PLL is
Xu Wei, Pan Minghai, Zhang Yanjing
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Low frequency noise and annoyance in classroom [PDF]
Noise Notes, 2000 The most common method for noise assessment is the A-weighted sound pressure level. The question has been raised as to whether the frequency weighting with an A-filter gives a correct result when assessing the annoyance response to noise containing strong low frequency noise (LFN) components.
Pär Lundquist +2 more
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Low-frequency noise characterization of strained germanium pMOSFETs [PDF]
, 2011 Low-frequency noise in strained Ge epitaxial layers, which are grown on a reverse-graded relaxed SiGe buffer layer, has been evaluated for different front-end processing conditions.
Eneman, G. +21 more
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Vascular endothelium as a target tissue for short-term exposure to low-frequency noise that increases cutaneous blood flow [PDF]
, 2022 Harmful health effects of exposure to low-frequency noise (LFN) defined as noise with frequencies at ≤100 Hz on the circulatory system have been a concern.
Tazaki, Akira +10 more
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Low frequency noise in Josephson junctions [PDF]
IEEE Transactions on Magnetics, 1975 Using a high resolution SQUID voltmeter, we have measured the spectrum of low frequency voltage fluctuations across a thin-film Josephson tunnel junction biased at a constant current I greater than the junction critical current I c . We find that the frequency dependence of the voltage spectrum V^{2}(f) may be accurately represented by the power law V^{
Clarke, J., Hawkins, G.
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A Proposal for Risk Assessment of Low-Frequency Noise in the Human–Machine–Environment System
Applied Sciences, 2023 Low-frequency noise, the frequency range from approximately 10 Hz to 200 Hz, has been recognized as a special environmental noise problem. The World Health Organization recognizes the special place of low-frequency noise as an environmental problem ...
Michaela Balážiková +2 more
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Low-frequency noise control using layered granular aerogel and limp porous media
, 2021 Click on the DOI link to access the conference paper (may not be free).The acoustic absorption of granular aerogel layers with a granule sizes in the range of 2 to 40 μm is dominated by narrow-banded, high absorption regions in the low-frequency range ...
Xue, Yutong +3 more
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Differential ultra low noise amplifier for low frequency noise measurements
AIP Advances, 2011 Almost all low noise voltage preamplifier suitable for application in the field of Low Frequency Noise Measurements (either commercially available or proposed in the literature) are single ended input amplifiers.
Graziella Scandurra +2 more
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