Results 21 to 30 of about 27,875,543 (317)
Pharmaceutics, 2021 Terahertz spectroscopy allows for the analysis of vibrations corresponding to the large-scale structural movements and collective dynamics of hydrogen-bonded water molecules. Previously, differences had been detected in the emission spectra of interferon-
Nikita Penkov
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Spectral analysis for nonstationary audio [PDF]
, 2018 A new approach for the analysis of nonstationary signals is proposed, with a focus on audio applications. Following earlier contributions, nonstationarity is modeled via stationarity-breaking operators acting on Gaussian stationary random signals.
Meynard, Adrien, Torrésani, Bruno
core +2 more sources
Advances in Mathematical Physics, 2017 We consider the special magnetic Laplacian given by Δν,μ=4∑j=1n∂2/∂zj∂zj¯+2iνE+E¯+n+2μE-E¯-ν2+μ2z2. We show that Δν,μ is connected to the sub-Laplacian of a group of Heisenberg type given by C ×ω Cn realized as a central extension of the real Heisenberg ...
Aymane El Fardi +2 more
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LncRNAs and Rheumatoid Arthritis: From Identifying Mechanisms to Clinical Investigation
Frontiers in Immunology, 2022 Rheumatoid arthritis (RA) is a systemic chronic autoinflammatory disease, and the synovial hyperplasia, pannus formation, articular cartilage damage and bone matrix destruction caused by immune system abnormalities are the main features of RA. The use of
Wentao Huang +11 more
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Spectral Analysis of the Dirac Polaron [PDF]
, 2013 A system of a Dirac particle interacting with the radiation field is considered. The Hamiltonian of the system is defined by $H = \alpha\cdot(\hat\mathbf{p}-q\mathbf{A}(\hat\mathbf{x}))+m\beta + H_f$ where $q\in\mathbb{R}$ is a coupling constant ...
Sasaki, Itaru
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Prospects of microwave-induced thermoacoustic imaging
Journal of Electronic Science and Technology, 2023 Microwave-induced thermoacoustic imaging (MTAI) has advantages including the large imaging depth, high imaging resolution, high imaging contrast, and fast imaging speed.
Xing-Hua Wang, Huan Qin
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Data-driven spectral analysis of the Koopman operator [PDF]
Applied and Computational Harmonic Analysis, 2017 Starting from measured data, we develop a method to compute the fine structure of the spectrum of the Koopman operator with rigorous convergence guarantees.
Milan Korda, M. Putinar, Igor Mezi'c
semanticscholar +1 more source
xkl: A legacy software for detailed acoustic analysis of speech made modern
SoftwareX, 2023 The determination of the fundamental properties of speech relies on a fine and precise estimation of temporal and spectral properties of speech segments.
Luca De Nardis +3 more
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Spectral Analysis of Heart Rate Variability: Time Window Matters
Frontiers in Neurology, 2019 Spectral analysis of heart rate variability (HRV) is a valuable tool for the assessment of cardiovascular autonomic function. Fast Fourier transform and autoregressive based spectral analysis are two most commonly used approaches for HRV analysis, while ...
Kai Li, Heinz Rüdiger, T. Ziemssen
semanticscholar +1 more source
Convolutional Edge Constraint-Based U-Net for Salient Object Detection
IEEE Access, 2019 The salient object detection is receiving more and more attention from researchers. An accurate saliency map will be useful for subsequent tasks. However, in most saliency maps predicted by existing models, the objects regions are very blurred and the ...
Le Han, Xuelong Li, Yongsheng Dong
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