Results 81 to 90 of about 163,902 (301)
Rolling Bearing Fault Diagnosis Based on an Improved HTT Transform
Sensors, 2018 When rolling bearing failure occurs, vibration signals generally contain different signal components, such as impulsive fault feature signals, background noise and harmonic interference signals.
Bin Pang +3 more
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Some new discrete Hilbert’s inequalities involving Fenchel–Legendre transform
Journal of Inequalities and Applications, 2020 Some new Hilbert-type inequalities involving Fenchel–Legendre transform are introduced. These inequalities give more general forms of some previously proved inequalities.
A. Hamiaz, W. Abuelela
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The Hilbert transform of Schwartz distributions [PDF]
Proceedings of the American Mathematical Society, 1983 Let D \mathcal {D} be the Schwartz space of infinitely differentiable complex-valued functions defined on the real line with compact supports equipped with the usual topology. Assume H ( D ) H(\mathcal {D}) to be the space of C
openaire +3 more sources
Advanced Intelligent Systems, EarlyView.This work presents a deep learning model to autonomously recognize and classify the secretion retention into three levels for patients receiving invasive mechanical ventilation, achieving 89.08% accuracy. This model can be implemented to ventilators by edge computing, whose feasibility is approved.
Shuai Wang +6 more
wiley +1 more source
Excited States of Coherent Harmonic Qubits With Long‐Range Photon Coupling and Dissipation
Annalen der Physik, EarlyView.When N qubits are strongly coupled with photons in a cavity, they can condense into a ground state with negative energy gap. Some new information is found on coherent transitions among excited states of this system, by simulating them numerically for small N.
L. Gamberale, G. Modanese
wiley +1 more source
Continuity properties of the Hilbert transform
Journal of Functional Analysis, 1971 AbstractIt is shown that for certain measures μ(dx), −∞ < x < ∞, the Hilbert transform Hf = P.V.1x ∗ f is continuous in Lp(μ(dx)) whenever 1 < p < ∞. To accomplish this it is proved that for any measurable set Eμ{x; ¦H1E¦ > λ} ⩽ μ(E)σ(λ), λ > 0, holds, where σ(λ) is a positive function that grows exponentially when λ → ∞ and σ(λ) ~ λ when λ → 0.
A. Benedek, R Panzone
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Quantum Jumps in Amplitude Bistability: Tracking a Coherent and Invertible State Localization
Annalen der Physik, EarlyView.A notable asymmetry is shown to characterize the bistable switching between macroscopic metastable states of light in the strong‐coupling limit of radiation–matter interaction. Transitions from the vacuum to a highly excited state correlate with a highly bunched sequence of emitted photons, while a downward switch to the vacuum involves a coherent ...
Th. K. Mavrogordatos
wiley +1 more source
Measurement of Phase Shift by Using a DSP [PDF]
Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2009 The paper deals with design of the computer system for measurements of the phase shift between two harmonic signals using the Digital Signal Processor (DSP).
Petr KOČÍ, David FOJTÍK, Jiří TŮMA
doaj
Shock and Vibration, 2016 In spark ignition engines, knock onset limits the maximum spark advance. An inaccurate identification of this limit penalises the fuel conversion efficiency.
Fengrong Bi +4 more
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Propagation characteristics of acoustic emission wave in reinforced concrete
Results in Physics, 2017 Due to the complexity of components and damage mechanism of reinforced concrete, the wave propagation characteristics in reinforced concrete are always complicated and difficult to determine.
Haoxiong Feng, Weijian Yi
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