Results 111 to 120 of about 5,309,030 (392)

Spin-flip scattering engendered negative $Δ_T$ noise [PDF]

open access: yesarXiv, 2023
$\Delta_T$ noise generated due to a temperature gradient in the absence of charge current has recently attracted much interest. In this paper, for the first time, we derive spin-polarised charge $\Delta_T$ noise and spin $\Delta_T$ noise along with its shot noise-like and thermal noise-like contributions.
arxiv  

WHO Environmental Noise Guidelines for the European Region: A Systematic Review on Environmental Noise and Effects on Sleep

open access: yesInternational Journal of Environmental Research and Public Health, 2018
To evaluate the quality of available evidence on the effects of environmental noise exposure on sleep a systematic review was conducted. The databases PSYCINFO, PubMed, Science Direct, Scopus, Web of Science and the TNO Repository were searched for non ...
M. Basner, S. Mcguire
semanticscholar   +1 more source

Noise suppressor [PDF]

open access: yes, 1974
Suppressor reduces noise propagated through ducts. It provides high attenuation in given duct length. Entire device forms acoustic trap which utilizes reflective elements on ends to direct sound energy into sound-dissipating element in center.
Zorumski, W. E.
core   +2 more sources

Dynamics of a FitzHugh-Nagumo system subjected to autocorrelated noise [PDF]

open access: yes, 2008
We analyze the dynamics of the FitzHugh-Nagumo (FHN) model in the presence of colored noise and a periodic signal. Two cases are considered: (i) the dynamics of the membrane potential is affected by the noise, (ii) the slow dynamics of the recovery ...
Augello, G., Spagnolo, B., Valenti, D.
core   +4 more sources

Learning to measure resistance noise demystifies the ubiquitous 1/f excess noise [PDF]

open access: yesarXiv, 2019
To study resistance noise (DeltaR) by a spectrum analyzer we must convert this noise into a noise voltage (DeltaV) at the reach of such generalized voltmeter. Whenever a current Iconv is set in a resistor to convert its resistance noise into noise voltage by Ohm's Law: DeltaV=DeltaR*Iconv, the converted noise thus obtained does not track DeltaRte (its ...
arxiv  

Feature Noise Boosts DNN Generalization under Label Noise [PDF]

open access: yesarXiv, 2023
The presence of label noise in the training data has a profound impact on the generalization of deep neural networks (DNNs). In this study, we introduce and theoretically demonstrate a simple feature noise method, which directly adds noise to the features of training data, can enhance the generalization of DNNs under label noise.
arxiv  

Performance evaluation of a novel intelligent distributed mounting system for marine mechanical equipment

open access: yesInternational Journal of Advanced Robotic Systems, 2019
Machinery mounting system is one of the most significant vibration and noise attenuation technology for marine mechanical equipment. A novel intelligent mounting system having distributed intermediate mass light in weight, intelligent in function and ...
Yuanran Qiu, Wei Xu, Zhengmin Li
doaj   +1 more source

AiResearch QCGAT engine: Acoustic test results [PDF]

open access: yes, 1980
The noise levels of the quiet, general aviation turbofan (QCGAT) engine were measured in ground static noise tests. The static noise levels were found to be markedly lower than the demonstrably quiet AiResearch model TFE731 engine.
Kisner, L. S.
core   +1 more source

Noise Flow: Noise Modeling with Conditional Normalizing Flows [PDF]

open access: yesarXiv, 2019
Modeling and synthesizing image noise is an important aspect in many computer vision applications. The long-standing additive white Gaussian and heteroscedastic (signal-dependent) noise models widely used in the literature provide only a coarse approximation of real sensor noise.
arxiv  

Modal analysis of noise propagation in a femtosecond oscillator [PDF]

open access: yes, 2019
We study noise propagation dynamics in a femtosecond oscillator by injecting external noise on the pump intensity. We utilize a spectrally-resolved homodyne detection technique that enables simultaneous measurement of amplitude and phase quadrature noises of different spectral bands of the oscillator.
arxiv   +1 more source

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