Articles with "frequency domain" as a keyword



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Associations of coronary plaque characteristics by integrated backscatter intravascular ultrasound with detectability of vessel external elastic lamina using optical frequency domain imaging in human coronary arteries: A sub‐analysis of the MISTIC‐1 trial

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Published in 2019 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.28218

Abstract: We sought to examine associations between plaque characteristics by intravascular ultrasound (IVUS) and detectability of external elastic lamina (EEL) by optical frequency domain imaging (OFDI) in human coronary arteries. read more here.

Keywords: elastic lamina; intravascular ultrasound; optical frequency; external elastic ... See more keywords
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Residual atherothrombotic burden after primary percutaneous coronary intervention and myocardial reperfusion—An optical frequency domain imaging study

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Published in 2019 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.28429

Abstract: We aimed to assess the relationship between residual in‐stent atherothrombotic burden (ATB) after primary percutaneous coronary intervention (PCI) measured by optical frequency domain imaging (OFDI) using different measurement methods and myocardial blush grade (MBG). read more here.

Keywords: atherothrombotic burden; primary percutaneous; optical frequency; percutaneous coronary ... See more keywords
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Eicosapentaenoic acid therapy is associated with decreased coronary plaque instability assessed using optical frequency domain imaging

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Published in 2019 at "Clinical Cardiology"

DOI: 10.1002/clc.23185

Abstract: The relationship between eicosapentaenoic acid (EPA) therapy and coronary plaque stability assessed by optical frequency domain imaging (OFDI) has not been thoroughly described. read more here.

Keywords: eicosapentaenoic acid; therapy; optical frequency; coronary plaque ... See more keywords
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Accurate Monte Carlo simulation of frequency‐domain optical coherence tomography

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Published in 2019 at "International Journal for Numerical Methods in Biomedical Engineering"

DOI: 10.1002/cnm.3177

Abstract: Abstract Optical coherence tomography (OCT) relies on optical interferometry to provide noninvasive imaging of living tissues. In addition to its 3D imaging capacity for medical diagnosis, its potential use for recovering optical parameters of biological… read more here.

Keywords: optical coherence; monte carlo; oct; coherence tomography ... See more keywords
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Utilizing the spatial frequency domain imaging to investigate change in optical parameters of skin exposed to thermal‐hydrotherapy: Ex‐vivo study

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Published in 2022 at "International Journal of Imaging Systems and Technology"

DOI: 10.1002/ima.22731

Abstract: Hydrotherapy is a traditional clinical practice that has been widely used for pain relief. However, immersion in hot water influences skin's moisture and morphology. In this study, we investigate the physiological changes of ex‐vivo chicken… read more here.

Keywords: frequency domain; domain imaging; spatial frequency; optical parameters ... See more keywords
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Toward feature space adversarial attack in the frequency domain

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Published in 2022 at "International Journal of Intelligent Systems"

DOI: 10.1002/int.23031

Abstract: Recent researchers have shown that deep neural networks (DNNs) are vulnerable to adversarial exemplars, making them unsuitable for security‐critical applications. Transferability of adversarial examples is crucial for attacking black‐box models, which facilitates adversarial attacks in… read more here.

Keywords: frequency domain; space; adversarial attack; feature space ... See more keywords
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Mixed model identification for linear time‐invariant systems with mixed noises in frequency domain

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Published in 2019 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.5837

Abstract: In this paper, we present a new method for frequency domain identification of discrete linear time‐invariant systems. We take consideration of the case where the output noises are mixed or unknown. In order to deal… read more here.

Keywords: linear time; mixed model; invariant systems; frequency domain ... See more keywords
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Adaptive LFT control of a civil aircraft with online frequency‐domain parameter estimation

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Published in 2019 at "International Journal of Robust and Nonlinear Control"

DOI: 10.1002/rnc.3993

Abstract: This paper describes the application of an indirect linear fractional transformation (LFT)–based state‐space adaptive control scheme to a transport aircraft, within the context of the European project REconfiguration of CONtrol in Flight for Integral Global… read more here.

Keywords: controller; lft; online; estimation ... See more keywords
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A New Hybrid Active Noise Control System with Convex Combination of Time and Frequency Domain Filtered-X LMS Algorithms

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Published in 2018 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-018-0784-x

Abstract: A conventional single-channel feedforward active noise control (ANC) system encounters noise from multiple sources. In many cases, there is a reference signal that is independently available which is correlated with the ambient noise. However, in… read more here.

Keywords: system; control; time; noise ... See more keywords
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A Bootstrap Method to Test Granger-Causality in the Frequency Domain

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Published in 2021 at "Computational Economics"

DOI: 10.1007/s10614-021-10112-x

Abstract: We propose a bootstrap test for unconditional and conditional Granger-causality spectra in the frequency domain. Our test aims to detect if the causality at a particular frequency is systematically different from zero. In particular, we… read more here.

Keywords: bootstrap; test; causality; granger causality ... See more keywords
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Frequency-Domain Multiplexing Readout with a Self-Trigger System for Pulse Signals from Kinetic Inductance Detectors

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Published in 2018 at "Journal of Low Temperature Physics"

DOI: 10.1007/s10909-018-1911-6

Abstract: We present the development of a frequency-domain multiplexing readout of kinetic inductance detectors (KIDs) for pulse signals with a self-trigger system. The KIDs consist of an array of superconducting resonators that have different resonant frequencies… read more here.

Keywords: system; pulse signals; kinetic inductance; frequency domain ... See more keywords