Results 51 to 60 of about 3,066,557 (335)

Low Frequency Noise in Tantalum Capacitors

open access: yesActive and Passive Electronic Components, 1987
Noise has been measured in a number of biased solid tantalum capacitors at frequencies down to 0.01 Hz. The noise current was found to have a 1/f power spectrum, and the amplitude varied with the bias voltage with a law in the range 1st to 4th power ...
D. T. Smith
doaj   +1 more source

A study on the contribution of body vibrations to the vibratory sensation induced by high-level, complex low-frequency noise

open access: yesNoise and Health, 2011
To investigate the contribution of body vibrations to the vibratory sensation induced by high-level, complex low-frequency noise, we conducted two experiments.
Yukio Takahashi
doaj   +1 more source

Low-Frequency Electronic Noise in Quasi-1D TaSe3 van der Waals Nanowires. [PDF]

open access: yesNano letters (Print), 2016
We report results of investigation of the low-frequency electronic excess noise in quasi-1D nanowires of TaSe3 capped with quasi-2D h-BN layers. Semimetallic TaSe3 is a quasi-1D van der Waals material with exceptionally high breakdown current density. It
Guanxiong Liu   +5 more
semanticscholar   +1 more source

Low-noise frequency-agile photonic integrated lasers for coherent ranging

open access: yesNature Communications, 2022
Frequency modulated continuous wave laser ranging (FMCW LiDAR) enables distance mapping with simultaneous position and velocity information, is immune to stray light, can achieve long range, operate in the eye-safe region of 1550 nm and achieve high ...
G. Lihachev   +12 more
semanticscholar   +1 more source

Near surface sediments introduce low frequency noise into gravity models

open access: yesApplied Computing and Geosciences, 2023
3D geologic modeling and mapping often relies on gravity modeling to identify key geologic structures, such as basin depth, fault offset, or fault dip.
G.A. Phelps, C. Cronkite-Ratcliff
doaj   +1 more source

Low Frequency Systemic Hemodynamic “Noise” in Resting State BOLD fMRI: Characteristics, Causes, Implications, Mitigation Strategies, and Applications

open access: yesFrontiers in Neuroscience, 2019
Advances in functional magnetic resonance imaging (fMRI) acquisition have improved signal to noise to the point where the physiology of the subject is the dominant noise source in resting state fMRI data (rsfMRI).
Y. Tong, L. Hocke, B. Frederick
semanticscholar   +1 more source

Low-frequency noise attenuation in seismic and microseismic data using mathematical morphological filtering

open access: yesGeophysical Journal International, 2017
Low-frequency noise is one of the most common types of noise in seismic and microseismic data. Conventional approaches, such as the high-pass filtering method, utilize the low-frequency nature and distinguish between signal and noise based on their ...
Weilin Huang   +3 more
semanticscholar   +1 more source

On the Control of Low-Frequency Audible Noise from Electrical Substations: A Case Study

open access: yesApplied Sciences, 2020
With the world facing the urgency of energy transition, the development of efficient and quiet electrical infrastructures is of topical importance in the construction of the environment of the future.
Edoardo Alessio Piana   +1 more
doaj   +1 more source

Measuring low-frequency noise indoors [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2008
At low frequencies, the sound pressure level may vary 20-30 dB in a room due to standing waves. For assessment of annoyance, mainly areas with the highest occurring levels are relevant, since persons present in such areas are not helped by the existence of lower levels in other areas.
Pedersen, Steffen   +2 more
openaire   +4 more sources

Development and Validation of a Masking System for Mitigation of Low-Frequency Audible Noise from Electrical Substations

open access: yesApplied Sciences, 2021
Low-frequency audible noise generated by the magnetostriction effect inherent to the operation of power transformers has become a major drawback, especially in cases where the electrical substation is located in urban areas subject to strict ...
Rogerio Regazzi   +7 more
doaj   +1 more source

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