Results 101 to 110 of about 265,367 (299)

Iron and Nickel Substituted Perovskite Cobaltites for Sustainable Oxygen Evolving Anodes in Alkaline Environment

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Perovskite oxide catalysts with reduced Co content, substituted by Fe and Ni, are synthesized and studied for their activity in the oxygen evolution reaction in alkaline media. An increase in the intrinsic catalytic activity (obtained by the (RctCdl)−1 product) of the base material (Ba0.5Gd0.8La0.7Co2O6‐δ) is seen for an as high as 70 % substitution of
Henrik Petlund   +6 more
wiley   +1 more source

Uncovering beam position monitor noise at the Relativistic Heavy Ion Collider

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2015
We apply the independent component analysis (ICA) algorithm to uncover intrinsic noise in the beam position monitor (BPM) system. Numerical simulations found that ICA is efficient in the BPM noise estimation.
X. Shen, S. Y. Lee, M. Bai
doaj   +1 more source

Glymphatic dysfunction couples with cortical excitation–inhibition imbalance in epilepsy: Evidence from Rasmussen encephalitis

open access: yesEpilepsia, EarlyView.
Cong Fu et al. demonstrate that glymphatic system dysfunction is linked to enhanced inhibitory cortical activity using diffusion MRI and EEG. These findings highlight a mechanistic link between perivascular fluid dynamics and neuronal activity, suggesting a role for glymphatic function in maintaining cortical stability in epilepsy.
Cong Fu   +11 more
wiley   +1 more source

FACE RECOGNITION USING PCA, LDA AND ICA APPROACHES ON COLORED IMAGES

open access: yesElectrica, 2002
In this paper, the performances of appearance-based statistical methods such as Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) and Independent Component Analysis (ICA) are tested and compared for the recognition of colored face ...
Önsen TOYGAR, Adnan ACAN
doaj   +2 more sources

Measuring the accuracy of ICA-based artifact removal from TMS-evoked potentials

open access: yesBrain Stimulation
Background: The analysis and interpretation of transcranial magnetic stimulation (TMS)-evoked potentials (TEPs) relies on successful cleaning of the artifacts, which typically mask the early (0–30 ms) TEPs.
Iiris Atti   +3 more
doaj   +1 more source

Determining Number of Independent Sources in Undercomplete Mixture

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
Separation of independent sources using independent component analysis (ICA) requires prior knowledge of the number of independent sources. Performing ICA when the number of recordings is greater than the number of sources can give erroneous results.
Dinesh K. Kumar, Ganesh R. Naik
doaj   +1 more source

[Independent Components Analysis (ICA) in the study of electroencephalographic signals].

open access: yesNeurologia (Barcelona, Spain), 2005
Independent Component Analysis (ICA) is a mathematical tool able to separate complex signals in statistically independent components. It solves the blind source separation problem (BSS). The EEG satisfies most of the assumptions of ICA, so it may be an adequate signal for ICA for its use.
E, Urrestarazu, J, Iriarte
openaire   +1 more source

Cardiac remodeling and arrhythmia in a mouse model of Depdc5 haploinsufficiency

open access: yesEpilepsia, EarlyView.
Abstract Objective Some ion channel genes linked to developmental and epileptic encephalopathy (DEE) are also linked to cardiac arrhythmia, leading to the hypothesis that predisposition to cardiac arrhythmias may contribute to the complex disease presentation of DEE and possibly to the mechanism of sudden unexpected death in epilepsy.
Roberto Ramos‐Mondragon   +9 more
wiley   +1 more source

Scatter Matrices and Independent Component Analysis

open access: yesAustrian Journal of Statistics, 2016
In the independent component analysis (ICA) it is assumed that the components of the multivariate independent and identically distributed observations are linear transformations of latent independent components.
Hannu Oja, Seija Sirkiä, Jan Eriksson
doaj   +1 more source

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