1,391 research outputs found
Constraints on SUSY Seesaw from Leptogenesis and LFV
We study constraints on the fundamental parameters of supersymmetric type I
seesaw models imposed by neutrino data, charged lepton flavor violation,
thermal leptogenesis and perturbativity of the neutrino Yukawa couplings.Comment: 4 pages, 2 figures, to appear in Proceedings of SUSY06, the 14th
International Conference on Supersymmetry and the Unification of Fundamental
Interactions, UC Irvine, California, 12-17 June 200
Distinct magnetic signatures of fractional vortex configurations in multiband superconductors
Vortices carrying fractions of a flux quantum are predicted to exist in
multiband superconductors, where vortex core can split between multiple
band-specific components of the superconducting condensate. Using the
two-component Ginzburg-Landau model, we examine such vortex configurations in a
two-band superconducting slab in parallel magnetic field. The fractional
vortices appear due to the band-selective vortex penetration caused by
different thresholds for vortex entry within each band-condensate, and
stabilize near the edges of the sample. We show that the resulting fractional
vortex configurations leave distinct fingerprints in the static measurements of
the magnetization, as well as in ac dynamic measurements of the magnetic
susceptibility, both of which can be readily used for the detection of these
fascinating vortex states in several existing multiband superconductors.Comment: 5 pages, 4 figure
The Application of Convolutional Neural Networks to Detect Slow, Sustained Deformation in InSAR Time Series
Automated systems for detecting deformation in satellite InSAR imagery could
be used to develop a global monitoring system for volcanic and urban
environments. Here we explore the limits of a CNN for detecting slow, sustained
deformations in wrapped interferograms. Using synthetic data, we estimate a
detection threshold of 3.9cm for deformation signals alone, and 6.3cm when
atmospheric artefacts are considered. Over-wrapping reduces this to 1.8cm and
5.0cm respectively as more fringes are generated without altering SNR. We test
the approach on timeseries of cumulative deformation from Campi Flegrei and
Dallol, where over-wrapping improves classication performance by up to 15%. We
propose a mean-filtering method for combining results of different wrap
parameters to flag deformation. At Campi Flegrei, deformation of 8.5cm/yr was
detected after 60days and at Dallol, deformation of 3.5cm/yr was detected after
310 days. This corresponds to cumulative displacements of 3 cm and 4 cm
consistent with estimates based on synthetic data
Como produzir suĂnos sem milho?
bitstream/item/46548/1/-www.porkworld.com.br-artigos-post-como-produzir-suinos-s.pdfProjeto: 11.11.11.111
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