Now showing items 39-58 of 921

  • Anyon exciton revisited: Exact solutions for a few-particle system 

    Parfitt, D.G.W.; Portnoi, M.E. (American Physical Society, 2003)
    The anyon exciton model is generalized to the case of a neutral exciton consisting of a valence hole and an arbitrary number N of fractionally charged quasielectrons (anyons). A complete set of exciton basis functions is ...
  • Anyon excitons 

    Rashba, E.I.; Portnoi, M.E. (American Physical Society, 1993)
    We propose a model of an anyon exciton consisting of a hole and several anyons, and apply it to the spectroscopy of an incompressible quantum liquid. Fractionalization of the electron charge makes properties of such entities ...
  • The appropriate spatial resolution of future weather files for building simulation 

    Eames, M; Kershaw, T; Coley, D (Taylor & Francis, 2011-08-31)
    Building thermal modelling packages require weather data to predict representative internal conditions. Typically, around the world, reference weather years of various forms are used which are created from observations at ...
  • Are pre-main-sequence stars older than we thought? 

    Naylor, Tim (Oxford University Press / Royal Astronomical Society, 2009)
    We fit the colour–magnitude diagrams of stars between the zero-age main-sequence and terminal-age main sequence in young clusters and associations. The ages we derive are a factor of 1.5–2 longer than the commonly used ...
  • Are turbulent spheres suitable initial conditions for star-forming clouds? 

    Rey-Raposo, Ramon; Dobbs, Clare; Duarte-Cabral, A. (Oxford University Press for Royal Astronomical Society, 2014)
    To date, most numerical simulations of molecular clouds, and star formation within them, assume a uniform density sphere or box with an imposed turbulent velocity field. In this work, we select molecular clouds from galactic ...
  • Assessing molecular line diagnostics of triggered star formation using synthetic observations 

    Haworth, TJ; Harries, TJ; Acreman, DM; Rundle, DA (Oxford University Press (OUP), 2013-04-04)
    We investigate observational signatures of triggered star formation in bright rimmed clouds (BRCs) by using molecular line transfer calculations based on radiation-hydrodynamic radiatively driven implosion models. We find ...
  • Assessing the risk of climate change for buildings: A comparison between multi-year and probabilistic reference year simulations 

    Kershaw, Tristan; Eames, Matthew E.; Coley, David (Elsevier, 2011)
    Given a changing climate, there is a need to provide data for future years so that practicing engineers can investigate the impact of climate change on particular designs and examine any risk the client might be exposed ...
  • Asymmetric dot dimers – optical properties and interactions 

    Meinzer, Nina; Humphrey, Alastair D.; Barnes, William L. (2015-01-06)
    We present a study of the rich optical behaviour of the dark (grey) modes exhibited by asymmetric dot dimers and how this behaviour is modified upon interaction between dimers.
  • Asymmetry of spin wave dispersions in a hexagonal magnonic crystal 

    Montoncello, F; Tacchi, S; Giovannini, L; Madami, M; Gubbiotti, G; Carlotti, G; Sirotkin, E; Ahmad, E; Ogrin, FY; Kruglyak, VV (American Institute of Physics (AIP), 2013-05-24)
    We report a study of the dispersion of spin waves in a hexagonal array of interacting ferromagnetic nanodisks for two orthogonal orientations of the in-plane applied magnetic field, i.e., either parallel or perpendicular ...
  • Atmospheres and radiating surfaces of neutron stars with strong magnetic fields 

    Potekhin, AY; Ho, WCG; Chabrier, G (SISSA, the International School for Advanced Studies, 2015)
    We review the current status of the theory of thermal emission from the surface layers of neutron stars with strong magnetic fields $B\sim 10^{10}-10^{15}$ G, including formation of the spectrum in a partially ionized ...
  • The atmospheric circulation of a nine-hot Jupiter sample: probing circulation and chemistry over a wide phase space 

    Kataria, T; Sing, David K.; Lewis, N; Visscher, C; Showman, A.P.; Fortney, J.J.; Marley, M (American Astronomical Society, 2016)
    We present results from an atmospheric circulation study of nine hot Jupiters that comprise a large transmission spectral survey using the Hubble and Spitzer Space Telescopes. These observations exhibit a range of spectral ...
  • Atmospheric escape from HD 189733b observed in H i Lyman-α: Detailed analysis of HST/STIS September 2011 observations 

    Bourrier, V.; Lecavelier des Etangs, A.; Dupuy, H.; Ehrenreich, D.; Vidal-Madjar, A.; Hebrard, G.; Ballester, G.; Desert, J.-M.; Ferlet, R.; Sing, David K.; Wheatley, P.J. (EDP Sciences for European Southern Observatory (ESO), 2013)
    Observations of transits of the hot giant exoplanet HD 189733b in the unresolved H i Lyman-α line show signs of hydrogen escaping the upper atmosphere of the planet. New resolved Lyman-α observations obtained with the STIS ...
  • Axial speed of sound for the monitoring of injured equine tendons: a preliminary study. 

    Vergari, C; Pourcelot, P; Ravary-Plumioën, B; Dupays, AG; Jacquet, S; Audigié, F; Denoix, JM; Laugier, P; Mitton, D; Crevier-Denoix, N (Elsevier, 2011-10-22)
    Equine superficial digital flexor tendons (SDFT) are often injured, and they represent an excellent model for human sport tendinopathies. While lesions can be precisely diagnosed by clinical evaluation and ultrasonography, ...
  • Axial speed of sound is related to tendon's nonlinear elasticity. 

    Vergari, C; Ravary-Plumioën, B; Evrard, D; Laugier, P; Mitton, D; Pourcelot, P; Crevier-Denoix, N (Elsevier, 2011-11-10)
    Axial speed of sound (SOS) measurements have been successfully applied to noninvasively evaluate tendon load, while preliminary studies showed that this technique also has a potential clinical interest in the follow up of ...
  • Babinet’s principle and the band structure of surface waves on patterned metal arrays 

    Edmunds, James D.; Taylor, Melita C.; Hibbins, Alastair P.; Sambles, J. Roy; Youngs, I.J. (American Institute of Physics, 2010)
    The microwave response of an array of square metal patches and its complementary structure, an array of square holes, has been experimentally studied. The resonant phenomena, which yield either enhanced transmission or ...
  • Backflow in the relaxation of a hybrid aligned nematic cell 

    Jewell, Sharon A.; Sambles, J. Roy (American Institute of Physics, 2003)
    The optical convergent-beam technique has been used to measure the changing director profile in a 4.6 µm ZLI-2293 filled hybrid aligned nematic cell when a 7 Vrms ac voltage was removed. The relaxation process has been ...
  • Bayesian detection of planetary transits. A modified version of the Gregory-Loredo method for Bayesian periodic signal detection 

    Aigrain, Suzanne; Favata, F. (EDP Sciences, 2002)
    The detection of planetary transits in stellar photometric light-curves is poised to become the main method for finding substantial numbers of terrestrial planets. The French-European mission COROT (foreseen for launch in ...
  • Bayesian matching for X-ray and infrared sources in the MYStIX project 

    Naylor, T; Broos, PS; Feigelson, ED (American Astronomical Society, 2013-11-14)
    Identifying the infrared counterparts of X-ray sources in Galactic plane fields such as those of the MYStIX project presents particular difficulties due to the high density of infrared sources. This high stellar density ...
  • Benchmarking the Multi-dimensional Stellar Implicit Code MUSIC 

    Goffrey, T; Pratt, J; Viallet, M; Baraffe, I; Popov, MV; Walder, R; Folini, D; Geroux, C; Constantino, T (arXiv.org, 2016-10-31)
    We present the results of a numerical benchmark study for the MUlti-dimensional Stellar Implicit Code (MUSIC) based on widely applicable two- and three-dimensional compressible hydrodynamics problems relevant to stellar ...
  • Bio-inspired band-gap tunable elastic optical multilayer fibers. 

    Kolle, M; Lethbridge, A; Kreysing, M; Baumberg, JJ; Aizenberg, J; Vukusic, P (Wiley, 2013-01-27)
    The concentrically-layered photonic structure found in the tropical fruit Margaritaria nobilis serves as inspiration for photonic fibers with mechanically tunable band-gap. The fibers show the spectral filtering capabilities ...