Results 81 to 90 of about 17,761 (290)
Synthesis of Spatially Correlated Earthquake Ground Motions Based on Hilbert Transform
Modelling and Simulation in Engineering, 2017 A simplified method for synthesizing spatially correlated earthquake ground motions is developed based on Hilbert transform and a reference earthquake record. In this method, one reference earthquake record is treated as the original ground motion, based
Erlei Yao, Yu Miao, Guobo Wang
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Nonlinear analysis of the electroencephalogram in depth of anesthesia
Revista Facultad de Ingeniería Universidad de Antioquia, 2015 Digital signal processing of the electroencephalogram (EEG) became important in monitoring depth of anesthesia (DoA) being used to provide a better anesthetic technique.
Oscar Leonardo Mosquera-Dusan +3 more
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Global and microlocal aspects of Dirac operators: Propagators and Hadamard states
Mathematische Nachrichten, EarlyView.Abstract We propose a geometric approach to construct the Cauchy evolution operator for the Lorentzian Dirac operator on Cauchy‐compact globally hyperbolic 4‐manifolds. We realize the Cauchy evolution operator as the sum of two invariantly defined oscillatory integrals—the positive and negative Dirac propagators—global in space and in time, with ...
Matteo Capoferri, Simone Murro
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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
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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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Estimation of the respiratory rate from ballistocardiograms using the Hilbert transform. [PDF]
Biomed Eng Online, 2022 Linschmann O +3 more
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Mathematical Methods in the Applied Sciences, EarlyView.A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay +2 more
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Seismic Signal Analysis Based on Variational Mode Decomposition and Hilbert Transform for Ground Intrusion Activity Classification. [PDF]
Sensors (Basel), 2023 Sun Y, Qian D, Zheng J, Liu Y, Liu C.
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Application of Variable Step‐Size Hybrid Methods for Solving Third‐Order Lane‐Emden Equations
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This manuscript introduces a pair of variable step‐size hybrid methods (PVSHM) to efficiently solve third‐order initial value problems of Lane‐Emden‐type equations (LETE). These equations are extensively used across various disciplines, including chemical engineering, fluid mechanics, physics, and astrophysics, to model a wide range of real ...
Mufutau Ajani Rufai +3 more
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Jixie chuandong, 2012 According to the nonstationarity and nonlinearity of the broken teeth fault of gear,the Hilbert-Huang transform is employed.Firstly,the a series of Intrinsic Mode Functions（IMFs） are obtained by the Empirical Mode Decomposition （EMD）method.Secondly,the ...
严作堂, 陈宏
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