6,616 research outputs found
Prediction of reactionary delay and cost using machine learning
Estimating the potential propagation of delay (and its associated cost) is crucial for the management of the fleet the day of operations. As the flight departure approaches, these estimations need to be as accurate as possible to support pre-tactical and tactical interventions aiming at minimising the network disruption. Dispatcher3 project aims at the use of machine learning models for the prediction and analysis of differences between planned and executed flight plans. Models corresponding to different time-horizons (from departure time to 15 hours before) are developed to predict the flying and turnaround times. These models are combined (with other operational parameters) to estimate reactionary delay and associated expected costs (including potential breaching of curfews). The outcome (delay and costs) is presented as probability distributions. This information could be used to support the flight planning process and the management of the fleet
The Rise of the Rams
The Fordham University Rugby Football Club (F.U.R.F.C) has been on a five-year conference losing streak. Since the fall of 2011, the Rams have slowly eroded. Despite consistent donations from alumni and an ever-growing roster, the team’s steep decline resulted in the dismissal of four head coaches. But they believe that the fall of 2016 will be their turnaround.
http://www.anthonypfalco.com/capstone
Crossover temperature of Bose-Einstein condensation in an atomic Fermi gas
We show that in an atomic Fermi gas near a Feshbach resonance the crossover
between a Bose-Einstein condensate of diatomic molecules and a Bose-Einstein
condensate of Cooper pairs occurs at positive detuning, i.e., when the
molecular energy level lies in the two-atom continuum. We determine the
crossover temperature as a function of the applied magnetic field and find
excellent agreement with the experiment of Regal et al. [Phys. Rev. Lett. 92,
040403 (2004)] that has recently observed this crossover temperature.Comment: 4 pages, 2 figure
J06587-5558 -- A Very Unusual Polarised Radio Source
We have found a peculiar radio source in the field of one of the hottest
known clusters of galaxies 1E0657-56. It is slightly extended, highly polarised
(54% at 8.8GHz) and has a very steep spectrum, with alpha ~ -1 at 1.3 GHz,
steepening to ~ -1.5 at 8.8GHz (S \propto nu^alpha). No extragalactic sources
are known with such high integrated polarisation, and sources with spectra as
steep as this are rare. In this paper, we report the unusual properties of the
source J06587-5558 and speculate on its origin and optical identification.Comment: 5 pages, 6 figures, accepted by MNRAS letter
Dispatcher3 D7.1 - Project communication, dissemination and exploitation plan
This document is the Communication, Dissemination and Exploitation Plan (D7.1) of the Clean Sky 2 Innovation Action Dispatcher3. The document defines the communication and dissemination actions to be performed during the project, and the potential exploitation of the project results. A complete strategy of communication is presented, as well as the items and content already prepared for it
Analyticity of the SRB measure for a class of simple Anosov flows
We consider perturbations of the Hamiltonian flow associated with the
geodesic flow on a surface of constant negative curvature. We prove that, under
a small perturbation, not necessarely of Hamiltonian character, the SRB measure
associated to the flow exists and is analytic in the strength of the
perturbation. An explicit example of "thermostatted" dissipative dynamics is
constructed.Comment: 23 pages, corrected typo
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