Results 31 to 40 of about 9,436,750 (310)
ENTROPY OF FREQUENCY DOMAIN OF HEART RATE VARIABILITY
Journal of V. N. Karazin Kharkiv National University: Series Medicine, 2022 Introduction. The heart rate variability (HRV) is based on measuring (time) intervals between R-peaks (of RR-intervals) of an electrocardiogram (ECG) and plotting a rhythmogram on their basis with its subsequent analysis by various mathematical methods ...
Oleksandr Martynenko +3 more
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Psychophysiology, 2022 Since its beginnings in the early 20th century, the psychophysiological study of human brain function has included research into the spectral properties of electrical and magnetic brain signals.
A. Keil +10 more
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Learning Frequency Domain Priors for Image Demoireing
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021 Image demoireing is a multi-faceted image restoration task involving both moire pattern removal and color restoration. In this paper, we raise a general degradation model to describe an image contaminated by moire patterns, and propose a novel multi ...
Bolun Zheng +8 more
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Frequency Domain Image Translation: More Photo-realistic, Better Identity-preserving [PDF]
IEEE International Conference on Computer Vision, 2020 Image-to-image translation has been revolutionized with GAN-based methods. However, existing methods lack the ability to preserve the identity of the source domain.
Mu Cai +4 more
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Numerical Study of the Influence of Fishnet Mesh Size on a Floating Platform
Journal of Marine Science and Engineering, 2020 This study aims to investigate the influence of fishnet mesh size on a floating platform. A self-developed, time-domain numerical model was used for the evaluation.
Hung-Jie Tang +2 more
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A Comprehensive Study of Optical Frequency Domain Reflectometry
IEEE Access, 2021 Optical frequency domain reflectometry (OFDR) is a kind of distributed optical fiber sensors (DOFS) which has attracted an increasing amount of research attention.
Changshuo Liang +5 more
semanticscholar +1 more source
Two-dimensional fast imaging of airborne EM data based on U-net
Frontiers in Earth Science, 2023 As an efficient geophysical exploration tool, the airborne electromagnetic (AEM) method has been widely used in mineral exploration, geological mapping, environmental and engineering investigation, etc.
Qiang Liu +6 more
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Harmonics Signal Feature Extraction Techniques: A Review
Mathematics, 2023 Harmonic estimation is essential for mitigating or suppressing harmonic distortions in power systems. The most important idea is that spectrum analysis, waveform estimation, harmonic source classification, source location, the determination of harmonic ...
Minh Ly Duc, Petr Bilik, Radek Martinek
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Multi-Distance Frequency-Domain Optical Measurements of Coherent Cerebral Hemodynamics
Photonics, 2019 We report non-invasive, bilateral optical measurements on the forehead of five healthy human subjects, of 0.1 Hz oscillatory hemodynamics elicited either by cyclic inflation of pneumatic thigh cuffs, or by paced breathing. Optical intensity and the phase
Giles Blaney +4 more
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Cointegration in frequency domain [PDF]
Journal of Time Series Analysis, 2002 Existence of a cointegration relationship between two time series in the time domain imposes restrictions on the series zero‐frequency behaviour in terms of their squared coherence, phase and gain, in the frequency domain. I derive these restrictions by studying cross‐spectral properties of a cointegrated bivariate system.
openaire +8 more sources