Results 31 to 40 of about 858,701 (293)

Pressure fluctuation signal analysis of pump based on ensemble empirical mode decomposition method

open access: yesWater Science and Engineering, 2014
Pressure fluctuations, which are inevitable in the operation of pumps, have a strong non-stationary characteristic and contain a great deal of important information representing the operation conditions.
Hong Pan, Min-sheng Bu
doaj   +1 more source

Wavelet transform-based mode decomposition for EEG signals under general anesthesia [PDF]

open access: yesPeerJ
Background Mode decomposition methods are used to extract the characteristic intrinsic mode function (IMF) from various multidimensional time series signals.
Shoko Yamochi   +6 more
doaj   +2 more sources

Anomalous enhancement of the coupling to the magnetic resonance mode in underdoped Pb-Bi2212 [PDF]

open access: yes, 2003
High-resolution angle-resolved photoemission with variable excitation energies is used to disentangle bilayer splitting effects and intrinsic (self-energy) effects in the electronic spectral function near the (π,0) point of differently doped (Pb,Bi ...
Berger, H   +9 more
core   +4 more sources

The research progress of empirical mode decomposition and mode mixing elimination

open access: yesDianzi Jishu Yingyong, 2019
The Empirical Mode Decomposition(EMD) algorithm proposed by Huang is a data driven adaptive analysis method for nonlinear time-varying signals. The signals can be decomposed into a few Intrinsic Mode Functions(IMFs) components with physical meaning ...
Dai Ting   +5 more
doaj   +1 more source

Experimental Evidence for Resonant-Tunneling in a Luttinger-Liquid

open access: yes, 1999
We have measured the low temperature conductance of a one-dimensional island embedded in a single mode quantum wire. The quantum wire is fabricated using the cleaved edge overgrowth technique and the tunneling is through a single state of the island. Our
A. Furusaki   +23 more
core   +1 more source

Interfacial friction between semiflexible polymers and crystalline surfaces [PDF]

open access: yes, 2012
The results obtained from molecular dynamics simulations of the friction at an interface between polymer melts and weakly attractive crystalline surfaces are reported.
Allen M. P.   +3 more
core   +3 more sources

Spectral Correlation Measure for Selecting Intrinsic Mode Functions [PDF]

open access: yes, 2014
Time series analysis implies extracting relevant features from real-world applications to improve pattern recognition tasks. In that sense, representation methods based on time series decomposition and similarity measures are combined to select representative features with physical interpretability.
Edgar F. Sierra-Alonso   +3 more
openaire   +1 more source

Gear Fault Diagnosis Based on Empirical Mode Decomposition and 1.5 Dimension Spectrum

open access: yesShock and Vibration, 2016
Aiming at the nonlinear and nonstationary feature of mechanical fault vibration signal, a new fault diagnosis method, which is based on a combination of empirical mode decomposition (EMD) and 1.5 dimension spectrum, is proposed.
Jianhua Cai, Xiaoqin Li
doaj   +1 more source

Empirical mode decomposition based on Fourier transform and band-pass filter

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
A novel empirical mode decomposition strategy based on Fourier transform and band-pass filter techniques, contributing to efficient instantaneous vibration analyses, is developed in this study. Two key improvements are proposed.
Zheng-Shou Chen   +2 more
doaj   +1 more source

Optical Kerr effect of liquid and supercooled water: the experimental and data analysis perspective

open access: yes, 2014
The time-resolved optical Kerr effect spectroscopy (OKE) is a powerful experimental tool enabling accurate investigations of the dynamic phenomena in molecular liquids.
Bartolini, P.   +4 more
core   +1 more source

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