Results 51 to 60 of about 1,897,301 (192)
Discovery of a QPO in the X-ray pulsar 1A 1118-615: correlated spectral and aperiodic variability
, 2010 Our goal is to investigate the X-ray timing and spectral variability of the high-mass X-ray binary 1A 1118-615 during a type-II outburst. We performed a detailed color, spectral and timing analysis of a giant outburst from 1A 1118-615, using RXTE data ...
Alpar +47 more
core +1 more source
Spectral analysis of sphygmogram
Фотобіологія та фотомедицина, 2019 Actuality. The heart system executes the important role in the organism. It is important task of medicine to diagnose of the state of this system. Electrocardiogram is the one of methods of control its state. Cardiointervalgram is another way of study of
He Shi +3 more
doaj +1 more source
Advances in Electrical and Computer Engineering, 2020 Shannon energy-based algorithm has been implemented in peak detection method of various physiological signals including electrocardiogram, which is used to enhance significant peaks for accurate peak detection.
SUBOH, M. Z. +3 more
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Spectral ergodicity and normal modes in ensembles of sparse matrices
, 2000 We investigate the properties of sparse matrix ensembles with particular regard for the spectral ergodicity hypothesis, which claims the identity of ensemble and spectral averages of spectral correlators.
A.D. Jackson +35 more
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Spectral analysis of lithium tremor
Archives of Neuropsychiatry, 2020 Lithium has proven efficacy in bipolar affective disorder (BAD) but induces tremor as a side effect in a quarter of patients. Lithium tremor (LT) shares some clinical characteristics of essential tremor (ET) and Parkinson's disease tremor (PT), which might cause difficulties in differential diagnosis.
ÇAKMAKLI, Gül Yalçin +4 more
openaire +3 more sources
The spectral analysis of nonstationary categorical time series using local spectral envelope [PDF]
, 2012 Most classical methods for the spectral analysis are based on the assumption that the time series is stationary. However, many time series in practical problems shows nonstationary behaviors.
Jeong, Hyewook, Jeong, Hyewook
core
The Synchrosqueezing transform for instantaneous spectral analysis [PDF]
, 2014 The Synchrosqueezing transform is a time-frequency analysis method that can decompose complex signals into time-varying oscillatory components. It is a form of time-frequency reassignment that is both sparse and invertible, allowing for the recovery of ...
Thakur, Gaurav
core
Advances in Difference Equations, 2018 This paper investigates the stability of bifurcating steady states of a spatially heterogeneous cooperative system with cross-diffusion. According to the spectral analysis and the principle of exchange of stability, we show that the bifurcating steady ...
Qian Xu, Guangping Chang
doaj +1 more source
Spectral Analysis of Gluonic Pole Matrix Elements
, 2008 We use a spectator framework to investigate the spectral properties of quark-quark-gluon correlators and use this to study gluonic pole matrix elements. Such matrix elements appear in principle both for distribution functions such as the Sivers function ...
Gamberg, L. P. +2 more
core +1 more source
Frontiers in Human Neuroscience, 2014 When humans perform a response task or timing task repeatedly, fluctuations in measures of timing from one action to the next exhibit long-range correlations known as 1/f noise. The origins of 1/f noise in timing have been debated for over twenty years,
Lillian M. Rigoli +3 more
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