400 research outputs found
Recommended from our members
Near real-time flood detection in urban and rural areas using high resolution Synthetic Aperture Radar images
A near real-time flood detection algorithm giving a synoptic overview of the extent of flooding in both urban and rural areas, and capable of working during night-time and day-time even if cloud was present, could be a useful tool for operational flood relief management. The paper describes an automatic algorithm using high resolution Synthetic Aperture Radar (SAR) satellite data that builds on existing approaches, including the use of image segmentation techniques prior to object classification to cope with the very large number of pixels in these scenes. Flood detection in urban areas is guided by the flood extent derived in adjacent rural areas. The algorithm assumes that high resolution topographic height data are available for at least the urban areas of the scene, in order that a SAR simulator may be used to estimate areas of radar shadow and layover. The algorithm proved capable of detecting flooding in rural areas using TerraSAR-X with good accuracy, and in urban areas with reasonable accuracy. The accuracy was reduced in urban areas partly because of TerraSAR-Xâs restricted visibility of the ground surface due to radar shadow and layover
Panel 3: Pilot Source Study 2015 & Discussion
An interactive discussion of critical pilot supply factors and performance of new pilots; research by a consortium of universities and airlines. Update for all participants on the Pilot Source Study 2015; Engage regional airline reps in dialog about the study, new pilot performance, comparisons with past generations of new pilots, etc
VAC14 GeneâRelated ParkinsonismâDystonia With Response to Deep Brain Stimulation
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/150504/1/mdc312797-sup-0001-TableS1.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/150504/2/mdc312797.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/150504/3/mdc312797_am.pd
Asteroseismology of the Hyades with K2: first detection of main-sequence solar-like oscillations in an open cluster
The Hyades open cluster was targeted during Campaign 4 (C4) of the NASA K2
mission, and short-cadence data were collected on a number of cool
main-sequence stars. Here, we report results on two F-type stars that show
detectable oscillations of a quality that allows asteroseismic analyses to be
performed. These are the first ever detections of solar-like oscillations in
main-sequence stars in an open cluster.Comment: 12 pages, 8 figures, 2 tables; accepted for publication in MNRA
Sharp optical phonon softening close to optimal doping in LaBaCuO
We report a direct observation of a sharp Kohn-like anomaly in the doubly
degenerate copper-oxygen bond-stretching phonon mode occurring at
in LaBaCuO with
, thanks to the high resolution of
inelastic x-ray scattering. This anomaly is clearly seen when the inelastic
signal is analysed using a single mode but is also consistent with a two mode
hypothesis possibly due to a splitting of the degenerate modes due to symmetry
breaking stripes. Our observation shows that the effect persists at the stripe
propagation vector in a superconducting system close to optimal doping
- âŠ