Results 11 to 20 of about 198,137 (312)

Empirical Mode Decomposition Aided by Adaptive Low Pass Filtering [PDF]

open access: yes, 2012
Empirical Mode Decomposition (EMD) is an adaptive signal analysis technique which derives its basis functions from the signal itself. EMD is realized through successive iterations of a sifting process requiring local mean computation.
Arıkan, Orhan   +6 more
core   +1 more source

Mode-mixing delle perturbazioni cosmologiche non-lineari [PDF]

open access: yes, 2022
Scopo di questa tesi è l’analisi dell’evoluzione di perturbazioni relativistiche in un modello cosmologico di Einstein-de Sitter, fino al secondo ordine.
Vanzan, Eleonora
core  

Orbital Angular Momentum (OAM) Mode Mixing in a Bent Step Index Fiber in Perturbation Theory: Multiple Bends

open access: yesIEEE Photonics Journal, 2020
In this article, we address the impact of multiple fiber bends on orbital angular momentum (OAM) mode propagation in a fiber. In particular, we extend the OAM mode-mixing due to a single-fiber bend studied earlier in detail for the step-index fiber, to ...
Ramesh Bhandari
doaj   +1 more source

EMD Mode Mixing Separation of Signals with Close Spectral Proximity in Smart Grids [PDF]

open access: yes, 2018
The Empirical Mode Decomposition (EMD) is a signal analysis method that separates multi-component signals into single oscillatory modes called intrinsic mode functions (IMFs).
Fosso, Olav B   +3 more
core   +1 more source

A Novel Rolling Bearing Defect Detection Method Based on Bispectrum Analysis and Cloud Model-Improved EEMD

open access: yesIEEE Access, 2020
Mechanical signals are not only disturbed by Gaussian noise, but also by non-Gaussian noise. These Gaussian noise and non-Gaussian noise have gravely impeded detecting of rolling bearing defects using traditional methods.
Yonghua Jiang   +5 more
doaj   +1 more source

Global and Koopman modes analysis of sound generation in mixing layers [PDF]

open access: yes, 2013
It is now well established that linear and nonlinear instability waves play a significant role in the noise generation process for a wide variety of shear flows such as jets or mixing layers.
X. Gloerfelt   +7 more
core   +1 more source

EEMD Independent Extraction for Mixing Features of Rotating Machinery Reconstructed in Phase Space

open access: yesSensors, 2015
Empirical Mode Decomposition (EMD), due to its adaptive decomposition property for the non-linear and non-stationary signals, has been widely used in vibration analyses for rotating machinery.
Zaichao Ma, Guangrui Wen, Cheng Jiang
doaj   +1 more source

Theoretical Investigation of the Circularly Polarized Luminescence of a Chiral Boron Dipyrromethene (BODIPY) Dye

open access: yesFrontiers in Chemistry, 2020
Over the last decade, molecules capable of emitting circularly polarized light have attracted growing attention for potential technological and biological applications.
Qin Yang, Marco Fusè, Julien Bloino
doaj   +1 more source

Mixed mode matrix multiplication [PDF]

open access: yesProceedings. IEEE International Conference on Cluster Computing, 2003
In modern clustering environments where the memory hierarchy has many layers (distributed memory, shared memory layer, cache, ...), an important question is how to fully utilize all available resources and identify the most dominant layer in certain computation.
Wu, Meng-Shiou   +2 more
openaire   +1 more source

The location of diapycnal mixing and the meridional overturning circulation [PDF]

open access: yes, 2002
The large-scale consequences of diapycnal mixing location are explored using an idealized threedimensional model of buoyancy-forced flow in a single hemisphere. Diapycnal mixing is most effective in supporting a strong meridional overturning circulation (
Jeffery R. Scott   +3 more
core   +1 more source

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