Now showing items 360-379 of 3098

  • 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 ...
  • A class of invisible inhomogeneous media and the control of electromagnetic waves 

    Vial, B; Liu, Y; Horsley, SAR; Philbin, TG; Hao, Y (American Physical Society, 2016)
    We propose a general method to arbitrarily manipulate an electromagnetic wave propagating in a two-dimensional medium, without introducing any scattering. This leads to a whole class of isotropic spatially varying permittivity ...
  • Classification of fracture and non-fracture groups by analysis of coherent X-ray scatter. 

    Dicken, AJ; Evans, JP; Rogers, KD; Stone, N; Greenwood, C; Godber, SX; Clement, JG; Lyburn, ID; Martin, RM; Zioupos, P (Nature Publishing Group, 2016-07-01)
    Osteoporotic fractures present a significant social and economic burden, which is set to rise commensurately with the aging population. Greater understanding of the physicochemical differences between osteoporotic and ...
  • Classification of peacock feather reflectance using principal component analysis similarity factors from multispectral imaging data 

    Medina, JM; Díaz, JA; Vukusic, P (Optical Society of America, 2015-04-20)
    Iridescent structural colors in biology exhibit sophisticated spatially-varying reflectance properties that depend on both the illumination and viewing angles. The classification of such spectral and spatial information ...
  • 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 model response from the Geoengineering Model Intercomparison Project (GeoMIP) 

    Kravitz, B; Caldeira, K; Boucher, O; Robock, A; Rasch, PJ; Alterskjær, K; Karam, DB; Cole, JNS; Curry, CL; Haywood, JM; Irvine, PJ; Ji, D; Jones, A; Kristjánsson, JE; Lunt, DJ; Moore, JC; Niemeier, U; Schmidt, H; Schulz, M; Singh, B; Tilmes, S; Watanabe, S; Yang, S; Yoon, JH (American Geophysical Union, 2013-08-09)
    Solar geoengineering - deliberate reduction in the amount of solar radiation retained by the Earth - has been proposed as a means of counteracting some of the climatic effects of anthropogenic greenhouse gas emissions. We ...
  • 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 simulations for 1880-2003 with GISS modelE 

    Hansen, J; Sato, M; Ruedy, R; Kharecha, P; Lacis, A; Miller, R; Nazarenko, L; Lo, K; Schmidt, GA; Russell, G; Aleinov, I; Bauer, S; Baum, E; Cairns, B; Canuto, V; Chandler, M; Cheng, Y; Cohen, A; Genio, AD; Faluvegi, G; Fleming, E; Friend, A; Hall, T; Jackman, C; Jonas, J; Kelley, M; Kiang, NY; Koch, D; Labow, G; Lerner, J; Menon, S; Novakov, T; Oinas, V; Perlwitz, J; Perlwitz, J; Rind, D; Romanou, A; Schmunk, R; Shindell, D; Stone, P; Sun, S; Streets, D; Tausnev, N; Thresher, D; Unger, N; Yao, M; Zhang, S (Springer Verlag (Germany), 2007)
    We carry out climate simulations for 1880-2003 with GISS modelE driven by ten measured or estimated climate forcings. An ensemble of climate model runs is carried out for each forcing acting individually and for all forcing ...
  • 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-Ozone Connections 

    Baldwin, M; Dameris, M (World Meteorological Organization, 2006)
  • 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, Victor; 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 ...
  • Climatic and palaeoceanographic changes during the Pliensbachian (Early Jurassic) 2 inferred from clay mineralogy and stable isotope (C-O) geochemistry (NW Europe) 

    Bougeault, C; Pellenard, P; Deconinck, J-F; Hesselbo, SP; Dommergues, J-L; Bruneau, L; Cocquerez, T; Laffont, R; Huret, E; Thibault, N (Elsevier, 2017-01-17)
    The Early Jurassic was broadly a greenhouse climate period that was punctuated by short warm and cold climatic events, positive and negative excursions of carbon isotopes, and episodes of enhanced organic matter burial. ...
  • Climatic impacts of land-use change due to crop yield increases and a universal carbon tax from a scenario model 

    Davies-Barnard, Taraka; Valdes, P.J.; Singarayer, J.S.; Jones, Chris D. (American Meteorological Society, 2014-02)
    Future land cover will have a significant impact on climate and is strongly influenced by the extent of agricultural land use. Differing assumptions of crop yield increase and carbon pricing mitigation strategies affect ...
  • Climatic impacts of stratospheric geoengineering with sulfate, black carbon and titania injection 

    Jones, AC; Haywood, James M.; Jones, A (European Geosciences Union (EGU) / Copernicus Publications, 2015-11-03)
    In this paper, we examine the potential climatic effects of geoengineering by sulfate, black carbon and titania injection against a baseline RCP8.5 scenario. We use the HadGEM2-CCS model to simulate scenarios in which the ...
  • Closed loop frequency tuning of a vibration-based micro-generator 

    Zhu, D; Roberts, S; Tudor, J; Beeby, S (PowerMEMS, 2008-11)
    This paper presents a tunable electromagnetic vibration-based micro-generator with closed loop frequency tuning. Frequency tuning is realized by applying an axial tensile force to the micro-generator. A closed-loop frequency ...
  • 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 ...
  • Clostridium perfringens α-toxin interaction with red cells and model membranes. 

    Jewell, Sharon A.; Titball, Richard W.; Huyet, J; Naylor, Claire E.; Basak, Ajit K.; Gologan, Petre; Winlove, C. Peter; Petrov, Peter G. (Royal Society of Chemistry, 2015-08-18)
    The effects of Clostridium perfringens α-toxin on host cells have previously been studied extensively but the biophysical processes associated with toxicity are poorly understood. The work reported here shows that the ...