Results 1 to 10 of about 91,311 (188)

Power-line Interference Removal from High Sampled ECG Signals Using Modified Version of the Subtraction Procedure [PDF]

open access: yesInternational Journal Bioautomation, 2020
The acquired ECG signals are often contaminated by residual Power-line Interference (PLI). A lot of methods, algorithms and techniques for PLI reduction have been published over the last few decades.
Ivan Dotsinsky   +2 more
doaj   +1 more source

Cutoff wavenumber analysis of arbitrarily shaped waveguides using regularized method of fundamental solutions with excitation sources

open access: yesElectronics Letters, 2023
The method of fundamental solutions with excitation source (MFS‐ES) is a reliable method for determining the eigenvalues of a two‐dimensional hollow waveguide. However, the accuracy in MFS‐ES is extremely dependent on the choice of the auxiliary boundary.
Tingting Yan   +4 more
doaj   +1 more source

Better Foreground Segmentation Through Graph Cuts [PDF]

open access: yes, 2004
For many tracking and surveillance applications, background subtraction provides an effective means of segmenting objects moving in front of a static background.
Aggarwal   +10 more
core   +4 more sources

Numerical analysis of microwave detection of breast tumours using synthetic focussing techniques [PDF]

open access: yes, 2004
Microwave detection of breast tumours is a non-ionising and potentially low-cost and more certain alternative to X-ray mammography. Analogous to ground penetrating radar (GPR), microwaves are transmitted using an antenna array and the reflected signals ...
Benjamin, R   +4 more
core   +2 more sources

Semi-blind speech-music separation using sparsity and continuity priors [PDF]

open access: yes, 2010
In this paper we propose an approach for the problem of single channel source separation of speech and music signals. Our approach is based on representing each source's power spectral density using dictionaries and nonlinearly projecting the mixture ...
Erdogan, Hakan   +2 more
core   +2 more sources

The Algebraic Method [PDF]

open access: yes, 2001
Combining the effect of an intermediate renormalization prescription (zero momentum subtraction) and the background field method (BFM), we show that the algebraic renormalization procedure needed for the computation of radiative corrections within non ...
Grassi, P. A.   +2 more
core   +3 more sources

The Properties of Field Elliptical Galaxies at Intermediate Redshift. I: Empirical Scaling Laws [PDF]

open access: yes, 1999
We present measurements of the Fundamental Plane (FP) parameters (the effective radius, the mean effective surface brightness, and the central velocity dispersion) of six field elliptical galaxies at intermediate redshift.
Bender R.   +24 more
core   +3 more sources

GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging

open access: yes, 2014
To directly image exoplanets and faint circumstellar disks, the noisy stellar halo must be suppressed to a high level. To achieve this feat, the angular differential imaging observing technique and the least-squares Locally Optimized Combination of ...
Correia, Carlos   +6 more
core   +1 more source

3D Spectrophotometry of Planetary Nebulae in the Bulge of M31 [PDF]

open access: yes, 2003
We introduce crowded field integral field (3D) spectrophotometry as a useful technique for the study of resolved stellar populations in nearby galaxies. As a methodological test, we present a pilot study with selected extragalactic planetary nebulae (XPN)
Andreas Kelz   +17 more
core   +1 more source

Foreground Contamination in Interferometric Measurements of the Redshifted 21 cm Power Spectrum

open access: yes, 2009
Subtraction of astrophysical foreground contamination from "dirty" sky maps produced by simulated measurements of the Murchison Widefield Array (MWA) has been performed by fitting a 3rd-order polynomial along the spectral dimension of each pixel in the ...
  +45 more
core   +2 more sources

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