Results 31 to 40 of about 25,686,348 (370)

Cocktail Therapy of Fosthiazate and Cupric-Ammoniun Complex for Citrus Huanglongbing

open access: yesFrontiers in Plant Science, 2021
Huanglongbing (HLB) is a destructive citrus bacterial disease caused by Candidatus Liberibacter asiaticus (Ca.Las) and cannot be cured by current pesticides.
Jingwei Duan   +15 more
doaj   +1 more source

Spectral analysis of jet turbulence [PDF]

open access: yesJournal of Fluid Mechanics, 2017
Informed by large-eddy simulation (LES) data and resolvent analysis of the mean flow, we examine the structure of turbulence in jets in the subsonic, transonic and supersonic regimes.
O. Schmidt   +4 more
semanticscholar   +1 more source

Spectral analysis for nonstationary audio [PDF]

open access: yes, 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

On Concrete Spectral Properties of a Twisted Laplacian Associated with a Central Extension of the Real Heisenberg Group

open access: yesAdvances 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
doaj   +1 more source

LncRNAs and Rheumatoid Arthritis: From Identifying Mechanisms to Clinical Investigation

open access: yesFrontiers 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
doaj   +1 more source

Prospects of microwave-induced thermoacoustic imaging

open access: yesJournal 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
doaj   +1 more source

Spectral Analysis of the Dirac Polaron [PDF]

open access: yes, 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
core   +3 more sources

xkl: A legacy software for detailed acoustic analysis of speech made modern

open access: yesSoftwareX, 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
doaj   +1 more source

Spectral Analysis of Heart Rate Variability: Time Window Matters

open access: yesFrontiers 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

open access: yesIEEE 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
doaj   +1 more source

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