Results 31 to 40 of about 3,066,557 (335)
Low frequency cultural noise [PDF]
Geophysical Research Letters, 2009 Abnormal cultural seismic noise is observed in the frequency range of 0.01–0.05 Hz. Cultural noise generated by human activities is generally observed in frequencies above 1 Hz, and is greater in the daytime than at night. The low‐frequency noise presented in this paper exhibits a characteristic amplitude variation and can be easily identified from ...
Dong‐Hoon Sheen +3 more
openaire +1 more source
Nonlinear energy sink applied for low-frequency noise control inside acoustic cavities: A review
Journal of Low Frequency Noise Vibration and Active Control, 2020 In recent years, the research of nonlinear energy sink on low-frequency noise control has become a hotspot. By adding a nonlinear energy sink into one primary system, it is possible to obtain the significant target energy transfer characteristics.
J. Shao, Jinmeng Yang, Xian Wu, Tao Zeng
semanticscholar +1 more source
Low-frequency active noise control of an underwater large-scale structure with distributed giant magnetostrictive actuators [PDF]
, 2017 A light and thin underwater large-plate active acoustic structure is developed that satisfies the particular requirements of high pressure resilience, low frequency and high efficiency encountered in underwater work environments.
Thomas, P. J. (Peter J.), Wang, Wenjie
core +1 more source
Low-frequency spin qubit energy splitting noise in highly purified 28Si/SiGe [PDF]
npj Quantum Information, 2019 We identify the dominant source for low-frequency spin qubit splitting noise in a highly isotopically-purified silicon device with an embedded nanomagnet and a spin echo decay time T2echo\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage ...
Tom Struck +10 more
semanticscholar +1 more source
Sprites in low‐frequency radio noise [PDF]
Geophysical Research Letters, 2013 Low‐frequency radio noise is the electromagnetic background radiation which is compared here to the luminosity of 39 sprites recorded with a low‐light video camera. It is found that the sprite luminosities coincide with ∼10–30 ms long sudden enhancements of the electromagnetic background radiation ∼6–8 μV m−1Hz−1/2(∼6–9 dB) with a relative maximum near
Füllekrug, M. +4 more
openaire +1 more source
Constant and switched bias low frequency noise in p-MOSFETs with varying gate oxide thickness [PDF]
, 2002 The low-frequency noise power spectral density of MOSFETs is decreased if the MOSFETs are periodically switched 'off' (switched bias conditions). The influence of the gate oxide thickness on fixed bias and switched biased low frequency drain current ...
Knitel, M.J. +3 more
core +2 more sources
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
doaj +1 more source
The X-ray fast-time variability of Sco X-2 (GX 349+2) with RXTE [PDF]
, 2001 Sco X-2 (GX 349+2) is a low-mass X-ray binary and Z source. We have analysed 156 ks of Rossi X-ray Timing Explorer data, obtained in 1998 January, on this source. We investigated the fast-time variability as a function of position on the Z track.
Agrawal +59 more
core +2 more sources
QUBIT DECOHERENCE BY LOW-FREQUENCY NOISE [PDF]
Realizing Controllable Quantum States, 2005 4 pages, 2 ...
Rabenstein, K. +2 more
openaire +2 more sources
Noise characterization of an atomic magnetometer at sub-millihertz frequencies [PDF]
, 2015 Noise measurements have been carried out in the LISA bandwidth (0.1 mHz to 100 mHz) to characterize an all-optical atomic magnetometer based on nonlinear magneto-optical rotation.
Budker, D. +5 more
core +3 more sources