Results 21 to 30 of about 326,128 (298)

Time-scale analysis of abrupt changes corrupted by multiplicative noise [PDF]

open access: yes, 2000
Multiplicative Abrupt Changes (ACs) have been considered in many applications. These applications include image processing (speckle) and random communication models (fading).
Chabert, Marie   +5 more
core   +1 more source

Histopathological changes caused by noise exposure in lung, heart, kidney, and liver tissues in New Zealand white rabbits

open access: yesJournal of Air Pollution and Health, 2022
Introduction: Noise exposure is a common phenomenon in all personal life activities. Due to the prevalence of exposure to noise, many people are exposed to noise. Some of the harmful effects of noise on human health have been proven so far. The purpose
Amirreza Abouee Mehrizi   +3 more
doaj   +1 more source

DTI denoising for data with low signal to noise ratios [PDF]

open access: yes, 2005
Low signal to noise ratio (SNR) experiments in diffusion tensor imaging (DTI) give key information about tracking and anisotropy, e. g., by measurements with small voxel sizes or with high b values.
Prigarin, Sergej M.   +6 more
core   +1 more source

Using The Probabilistic Fractal Dimension to Decide if a Time Series is Chaotic [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2009
In this paper, we use several ways to distinguish between the deterministic time series and stochastic white noise by using correlation exponent test and the BDS test ( Brock Deckert Scheinkman ) ,through simulating a large number of data for testing the
doaj   +1 more source

Synaptic shot noise and conductance fluctuations affect the membrane voltage with equal significance [PDF]

open access: yes, 2005
The subthresholdmembranevoltage of a neuron in active cortical tissue is a fluctuating quantity with a distribution that reflects the firing statistics of the presynaptic population.
Wulfram Gerstner   +5 more
core   +1 more source

Reduction of magnetic noise limits of orthogonal fluxgate sensor

open access: yesAIP Advances, 2021
We have further lowered the white noise of an orthogonal fluxgate to about 0.3 pT/√Hz @ 8 Hz. So far, this is the lowest noise reported for a fluxgate magnetometer.
Michal Dressler   +2 more
doaj   +1 more source

Spatial Smoothing for Diffusion Tensor Imaging with low Signal to Noise Ratios [PDF]

open access: yes, 2003
Though low signal to noise ratio (SNR) experiments in DTI give key information about tracking and anisotropy, e.g. by measurements with very small voxel sizes, due to the complicated impact of thermal noise such experiments are up to now seldom analysed.
Prigarin, Sergej M.   +4 more
core   +1 more source

Differential effects of white noise in cognitive and perceptual tasks

open access: yesFrontiers in Psychology, 2015
Beneficial effects of noise on higher cognition have recently attracted attention. Hypothesizing an involvement of the mesolimbic dopamine system and its functional interactions with cortical areas, the current study aimed to demonstrate a facilitation ...
Nora Alicia Herweg   +2 more
doaj   +1 more source

How to Use White Noise Analysis to Make Feynman Integrals Mathematically Rigorous

open access: yes, 2017
In this chapter we summarize applications of White Noise Analysis within the framework of Feynman Path Integrals. With more than 30 years of intensive study this field can be seen as one of the most important applications.
Wolfgang Bock, Bock, Wolfgang,
core   +1 more source

Compact conversion and cyclostationary noise modelling of pn junction diodes in low-injection - Part II: Discussion [PDF]

open access: yes, 2004
Starting from the compact conversion and cyclostationary pn diode noise model presented in the companion paper, we present an extensive validation based on comparisons with physics-based numerical simulations.
Bonani, Fabrizio   +2 more
core   +1 more source

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