Results 51 to 60 of about 702 (70)

Improving the false nearest neighbors method with graphical analysis

open access: yes, 1998
We introduce a graphical presentation for the false nearest neighbors (FNN) method. In the original method only the percentage of false neighbors is computed without regard to the distribution of neighboring points in the time-delay coordinates.
Aittokallio, T.   +4 more
core   +1 more source

Determining the Spectral Signature of Spatial Coherent Structures

open access: yes, 2005
We applied to an open flow a proper orthogonal decomposition (pod) technique, on 2D snapshots of the instantaneous velocity field, to reveal the spatial coherent structures responsible of the self-sustained oscillations observed in the spectral ...
B. Podvin   +8 more
core   +2 more sources

Cryptotomography: reconstructing 3D Fourier intensities from randomly oriented single-shot diffraction patterns

open access: yes, 2010
We reconstructed the 3D Fourier intensity distribution of mono-disperse prolate nano-particles using single-shot 2D coherent diffraction patterns collected at DESY's FLASH facility when a bright, coherent, ultrafast X-ray pulse intercepted individual ...
A. Barty   +21 more
core   +1 more source

Identification of robust and reproducible CT-texture metrics using a customized 3D-printed texture phantom. [PDF]

open access: yesJ Appl Clin Med Phys, 2021
Varghese BA   +7 more
europepmc   +1 more source

Simultaneous Least Squares Treatment of Statistical and Systematic Uncertainties

open access: yes, 2005
We present a least squares method for estimating parameters from measurements of event yields in the presence of background and crossfeed. We adopt a unified approach to incorporating the statistical and systematic uncertainties on the experimental ...
Golub, Lefebvre, Werner M. Sun
core   +1 more source

Gravitational wave burst vetoes in the LIGO S2 and S3 data analyses

open access: yes, 2005
The LIGO detectors collected about 4 months of data in 2003-2004 during two science runs, S2 and S3. Several environmental and auxiliary channels that monitor the instruments' physical environment and overall interferometric operation were analyzed in ...
  +10 more
core   +1 more source

Extracting the differential phase in dual atom interferometers by modulating magnetic fields

open access: yes, 2016
We present a new scheme for measuring the differential phase in dual atom interferometers. The magnetic field is modulated in one interferometer, and the differential phase can be extracted without measuring the amplitude of the magnetic field by ...
Chen, Xi   +8 more
core   +1 more source

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