Now showing items 128-147 of 1216

  • Chaos in symmetric phase oscillator networks 

    Bick, Christian; Timme, Marc; Paulikat, Danilo; Rathlev, Dirk; Ashwin, Peter (American Physical Society, 2011)
    Phase-coupled oscillators serve as paradigmatic models of networks of weakly interacting oscillatory units in physics and biology. The order parameter which quantifies synchronization so far has been found to be chaotic ...
  • Characterising stellar micro-variability for planetary transit searches 

    Aigrain, Suzanne; Favata, F.; Gilmore, G. (EDP Sciences, 2004)
    A method for simulating light curves containing stellar micro-variability for a range of spectral types and ages is presented. It is based on parameter-by-parameter scaling of a multi-component fit to the solar irradiance ...
  • Characteristic matrices for linear periodic delay differential equations 

    Sieber, J.; Szalai, R. (2011)
    Szalai, Stépán, and Hogan [SIAM J. Sci. Comput., 28 (2006), pp. 1301–1317] gave a general construction for characteristic matrices for systems of linear delay differential equations with periodic coefficients. First, we ...
  • Characterization of spin-valves fabricated on opaque substrates by optical ferromagnetic resonance 

    Barman, A.; Kruglyak, V.V.; Hicken, R.J.; Marrows, C.H.; Ali, M.; Hindmarch, A.T.; Hickey, B.J. (American Institute of Physics, 2002)
    We have used a transmission line deposited on a transparent substrate to deliver an optically triggered magnetic field pulse to a spin valve structure deposited upon an opaque substrate. The ensuing ferromagnetic resonance ...
  • Characterizing the shape of the lumbar spine using an active shape model: reliability and precision of the method 

    Meakin, Judith R.; Gregory, Jennifer S.; Smith, Francis W.; Gilbert, Fiona J.; Aspden, Richard M. (Lippincott, Williams & Wilkins, 2008)
    Study Design. Analysis of positional magnetic resonance images of normal volunteers. Objective. To compare the reliability and precision of an active shape model to that of conventional lordosis measurements. Summary ...
  • The chronology and kinematics of late Palaeozoic deformation in the NW contact metamorphic aureole of the Land's End Granite 

    Hughes, S.P.; Strickland, R.J.; Shail, R.K.; LeBoutillier, N.G.; Alexander, A.C.; Thomas, M. (The Ussher Society, 2009)
    A structural investigation of coastal exposures between Cape Cornwall and Pendeen Watch, in the NW contact metamorphic aureole of the Land’s End Granite, has confirmed a similar deformation chronology as in a reference ...
  • Circularly polarized colour reflection from helicoidal structures in the beetle Plusiotis boucardi 

    Jewell, Sharon A.; Vukusic, Peter; Roberts, N. W. (Institute of Physics and Deutsche Physikalische Gesellschaft, 2007)
    A detailed optical study of the iridescent outer-shell of the beetle Plusiotis boucardi has revealed a novel microstructure which controls both the polarization and wavelength of reflected light. A previously unreported ...
  • A class of exactly solvable models for the Schrodinger equation 

    Downing, C.A. (Springer Verlag, 2013)
    We present a class of confining potentials which allow one to reduce the one-dimensional Schroodinger equation to a named equation of mathematical physics, namely either Bessel's or Whittaker's differential equation. In ...
  • Classification of robust heteroclinic cycles for vector fields in R3 with symmetry 

    Hawker, David; Ashwin, Peter (Institute of Physics, 2005)
    We consider a classification of robust heteroclinic cycles in the positive octant of R3 under the action of the symmetry group (Z2)3. We introduce a coding system to represent different classes up to a topological equivalence, ...
  • Classification of wave regimes in excitable systems with linear cross diffusion 

    Tsyganov, M. A.; Biktashev, V. N. (American Physical Society, 2014)
    We consider principal properties of various wave regimes in two selected excitable systems with linear cross diffusion in one spatial dimension observed at different parameter values. This includes fixed-shape propagating ...
  • Climate impacts of geoengineering marine stratocumulus clouds 

    Jones, Andy; Haywood, James M.; Boucher, Olivier (American Geophysical Union (AGU), 2009)
    [1] Theoretical potential geoengineering solutions to the global warming problem have recently been proposed. Here, we present an idealized study of the climate response to deliberately seeding large-scale stratocumulus ...
  • Climate impacts of the southern annular mode simulated by the CMIP3 models 

    Karpechko, Alexey Yu; Gillett, Nathan P.; Marshall, Gareth J.; Screen, James A. (American Meteorological Society, 2009)
    The southern annular mode (SAM) has a well-established impact on climate in the Southern Hemisphere. The strongest response in surface air temperature (SAT) is observed in the Antarctic, but the SAM’s area of influence ...
  • Climate predictions: the influence of nonlinearity and randomness 

    Thompson, J.M.; Sieber, J. (Royal Society, 2012)
    The current threat of global warming and the public demand for confident projections of climate change pose the ultimate challenge to science: predicting the future behaviour of a system of such overwhelming complexity as ...
  • Climate tipping as a noisy bifurcation: a predictive technique 

    Thompson, J.M.; Sieber, J. (Oxford University Press for Institute of Mathematics and its Applications, 2011)
    It is often known, from modelling studies, that a certain mode of climate tipping (of the oceanic thermohaline circulation, for example) is governed by an underlying fold bifurcation. For such a case, we present a scheme ...
  • Climate–carbon cycle feedback analysis: results from the C4MIP model intercomparison 

    Friedlingstein, P.; Cox, Peter M.; Betts, R. A.; Bopp, L.; Von Bloh, W.; Brovkin, V.; Cadule, P.; Doney, S.; Eby, M.; Fung, I.; Bala, G.; John, J.; Jones, Chris D.; Joos, F.; Kato, T.; Kawamiya, M.; Knorr, W.; Lindsay, K.; Matthews, H. D.; Raddatz, T.; Rayner, P.; Reick, C.; Roeckner, E.; Schnitzler, K.-G.; Schnur, R.; Strassmann, K.; Weaver, A. J.; Yoshikawa, C.; Zeng, N. (American Meteorological Society, 2006)
    Eleven coupled climate-carbon cycle models used a common protocol to study the coupling between climate change and the carbon cycle. The models were forced by historical emissions and the Intergovernmental Panel on Climate ...
  • Clostridium perfringens epsilon toxin H149A mutant as a platform for receptor binding studies 

    Bokori-Brown, Monika; Kokkinidou, Maria C.; Savva, Christos G.; Fernandes da Costa, Sérgio P.; Naylor, Claire E.; Cole, Ambrose R.; Moss, David S.; Basak, Ajit K.; Titball, Richard W. (Wiley, 2013-05)
    Clostridium perfringens epsilon toxin (Etx) is a pore-forming toxin responsible for a severe and rapidly fatal enterotoxemia of ruminants. The toxin is classified as a category B bioterrorism agent by the U.S. Government ...
  • Cluster observations of the mid-altitude cusp under strong northward Interplanetary magnetic field 

    Hu, Renyu; Bogdanova, Yulia V.; Owen, Christopher J.; Foullon, Claire; Fazakerley, Andrew; Reme, Henri (American Geophysical Union (AGU), 2008)
    We report on a multispacecraft cusp observation lasting more than 100 min. We determine the cusp boundary motion and reveal the effect on the cusp size of the interplanetary magnetic field (IMF) changing from southward to ...
  • A coarse-grid approach to representing building blockage effects in 2D urban flood modelling 

    Chen, Albert S.; Evans, Barry; Djordjevic, Slobodan; Savic, Dragan (Elsevier, 2012)
    The latest information and communications technology has enabled flood modelling in urban areas using high quality terrain data to simulate the detailed flow dynamics in local areas. However, the computational cost rises ...
  • Coastal landsliding in Cornwall, UK: mechanisms, modelling and implications 

    Shail, R.K.; Coggan, J.S.; Stead, D. (1998)
    Cornwall forms the westernmost part of the South West peninsula and has an Atlantic coastline in excess of 500 km. The coastal zone provides significant leisure and recreational activities for visitors to the region. ...
  • Coexisting Nematic and Smectic- A Phases in a Twisted Liquid-Crystal Cell 

    Ruan, Lizhen; Osipov, M. A.; Sambles, J. Roy (American Physical Society, 2001)
    Twisted homogeneously planar-aligned nematic liquid-crystal cells are cooled into the smectic- A phase. The expected defective structure does not form. Instead the cells still show good optical-guiding characteristics. ...