Now showing items 81-100 of 3575

  • All-Optical Generation of Surface Plasmons in Graphene 

    Constant, Thomas J.; Hornett, Samuel M.; Chang, D.E.; Hendry, Euan (Cornell University, 2015-05-01)
    Here we present an all-optical plasmon coupling scheme, utilising the intrinsic nonlinear optical response of graphene. We demonstrate coupling of free-space, visible light pulses to the surface plasmons in a planar, ...
  • Alleviating health risks associated with rainwater harvesting 

    Ward, SL; Butler, D; Daly, B; Deegan, AM; Maganha de Almeida, AC; Lennox, I (NRC Research Press, 2017-03-31)
    Perceived and real public health risks associated with the quality of water from alternative water sources and supply systems, such as rainwater harvesting (RWH) and grey water reuse, continue to restrict their uptake in ...
  • Almost sure convergence of maxima for chaotic dynamical systems 

    Holland, Mark P.; Nicol, Matthew; Török, János (Cornell University Library, 2016-03-21)
    Suppose (f,X,ν) is a measure preserving dynamical system and ϕ:X→R is an observable with some degree of regularity. We investigate the maximum process M n :=max{X 1 ,…,X n } , where X i =ϕ∘f i is a time series of observations ...
  • Alteration and vein mineralisation within the Lizard complex, south Cornwall: Constraints on the timing of serpentinisation. 

    Power, M.R.; Shail, R.K.; Alexander, A.C.; Scott, P.W. (The Ussher Society, 1997-02)
    Two distinct episodes of serpentinisation have been identified within the peridotites of the Lizard complex. The first episode (primary serpentinisation) is represented by the complex and pervasive hydration of the Lizard ...
  • Altered intrinsic excitability of hippocampal CA1 pyramidal neurons in aged PDAPP mice 

    Tamagnini, F; Novelia, J; Kerrigan, TL; Brown, JT; Tsaneva-Atanasova, Krasimira; Randall, AD (Frontiers, 2015-10-14)
    Amyloidopathy involves the accumulation of insoluble amyloid b (Ab) species in the brain’s parenchyma and is a key histopathological hallmark of Alzheimer’s disease (AD). Work on transgenic mice that overexpress Ab ...
  • Altered intrinsic pyramidal neuron properties and pathway-specific synaptic dysfunction underlie aberrant hippocampal network function in a mouse model of Tauopathy. 

    Booth, Clair A.; Witton, J; Nowacki, J; Tsaneva-Atanasova, Krasimira; Jones, MW; Randall, AD; Brown, JT (Society for Neuroscience -, 2016-01-13)
    The formation and deposition of tau protein aggregates is proposed to contribute to cognitive impairments in dementia by disrupting neuronal function in brain regions, including the hippocampus. We used a battery of in ...
  • An alternative calculation of the Casimir forces between birefringent plates 

    Philbin, Thomas G.; Leonhardt, Ulf (American Physical Society, 2008)
    Barash has calculated the Casimir forces between parallel birefringent plates with optical axes parallel to the plate boundaries [Izv. Vyssh. Uchebn.\ Zaved., Radiofiz., {\bf 12}, 1637 (1978)]. The interesting new feature ...
  • Alternative Infill Strategies for Expensive Multi-Objective Optimisation 

    Rahat, A; Everson, RM; Fieldsend, JE (Association for Computing Machinery (ACM), 2017-07-15)
    Many multi-objective optimisation problems incorporate computationally or financially expensive objective functions. State-of-the-art algorithms therefore construct surrogate model(s) of the parameter space to objective ...
  • Alternative stable scroll waves and conversion of autowave turbulence 

    Foulkes, A. J.; Barkley, D.; Biktashev, V. N.; Biktasheva, I. V. (American Institute of Physics, 2010)
    Rotating spiral and scroll waves (vortices) are investigated in the FitzHugh-Nagumo model of excitable media. The focus is on a parameter region in which there exists bistability between alternative stable vortices with ...
  • Amazon Basin climate under global warming: the role of the sea surface temperature. 

    Harris, PP; Huntingford, C; Cox, PM (Royal Society, 2008-05-27)
    The Hadley Centre coupled climate-carbon cycle model (HadCM3LC) predicts loss of the Amazon rainforest in response to future anthropogenic greenhouse gas emissions. In this study, the atmospheric component of HadCM3LC is ...
  • AMBER/VLTI high spectral resolution observations of the Brγ emitting region in HD 98922. A compact disc wind launched from the inner disc region 

    Caratti o Garatti, A; Tambovtseva, LV; Garcia Lopez, R; Kraus, Stefan; Schertl, D.; Grinin, VP; Weigelt, Gerd; Hofmann, Karl-Heinz; Massi, F.; Lagarde, S.; Vannier, M.; Malbet, F. (EDP Sciences, 2015-10)
    Context. High angular and spectral resolution observations can provide us with fundamental clues to the complex circumstellar structure of young stellar objects (YSOs) and to the physical processes taking place close to ...
  • AMBER/VLTI observations of the B[e] star MWC 300 

    Wang, Y.; Weigelt, Gerd; Kreplin, Alexander; Hofmann, Karl-Heinz; Kraus, Stefan; Miroshnichenko, A.S.; Schertl, D.; Chelli, A.; Domiciano de Souza, A.; Massi, F.; Robbe-Dubois, S. (EDP Sciences for European Southern Observatory (ESO), 2012)
    Aims. We study the enigmatic B[e] star MWC 300 to investigate its disk and binary with milli-arcsecond-scale angular resolution. Methods. We observed MWC 300 with the VLTI/AMBER instrument in the H and K bands and ...
  • Ambient vibration re-testing and operational modal analysis of the Humber Bridge 

    Brownjohn, James; Magalhaes, Felipe; Caetano, Elsa; Cunha, Alvaro (Elsevier, 2010-08)
    An ambient vibration survey of the Humber Bridge was carried out in July 2008 by a combined team from the UK, Portugal and Hong Kong. The exercise had several purposes that included the evaluation of current technology ...
  • Ambient vibration studies for system identification of tall buildings 

    Brownjohn, James (Wiley, 2002-10-29)
    The performance of a building under wind and seismic loads depends on stiffness and mass distribution, and may be estimated using finite element codes. Experience has, however, shown that such finite element models often ...
  • Ambient vibration survey of the Bosporus Suspension Bridge 

    Brownjohn, James; Dumanoglu, AA; Severn, RT; Blakeborough, AB (Wiley, 1989-02)
    Traffic and wind excitation has been used to obtain the dynamic characteristics of the first Bosporus (Bogazici) Suspension Bridge. Structural symmetry and the absence of suspended side-spans allowed attention to be focused ...
  • Ambient vibration survey of the Fatih Sultan Mehmet (Second Bosporus) Suspension Bridge 

    Brownjohn, James; Dumanoglu, AA; Severn, RT (Wiley, 1992)
    Ambient accelerations due to dynamic excitation by wind and traffic were measured on the deck, towers, cables and hangers of the Fatih suspension bridge. From these measurements it was possible to obtain natural frequencies, ...
  • Ambipolar diffusion in low-mass star formation. I. General comparison with the ideal MHD case 

    Masson, J; Chabrier, G; Hennebelle, P; Vaytet, N; Commerçon, B (EDP Sciences, 2016-02-12)
    In this paper, we provide a more accurate description of the evolution of the magnetic flux redistribution during prestellar core collapse by including resistive terms in the magnetohydrodynamics (MHD) equations. We focus ...
  • AMI-LA radio continuum observations of Spitzer c2d small clouds and cores: Perseus region 

    Scaife, Anna M.M.; Hatchell, Jennifer; Davies, Matthew; Franzen, Thomas M.O.; Grainge, Keith J.B.; Hobson, Michael P.; Hurley-Walker, Natasha; Lasenby, Anthony N.; Olamaie, Malak; Perrott, Yvette C.; Pooley, Guy G.; Rodríguez-Gonzálvez, Carmen; Saunders, Richard D.E.; Schammel, Michel P.; Scott, Paul F.; Shimwell, Timothy; Titterington, David; Waldram, Elizabeth (Oxford University Press / Royal Astronomical Society, 2011)
    We present deep radio continuum observations of the cores identified as deeply embedded young stellar objects in the Perseus molecular cloud by the Spitzer c2d programme at a wavelength of 1.8 cm with the Arcminute Microkelvin ...
  • Amplified mid-latitude planetary waves favour particular regional weather extremes 

    Screen, James A.; Simmonds, Ian (Nature Publishing Group, 2014)
    There has been an ostensibly large number of extreme weather events in the Northern Hemisphere mid-latitudes during the past decade [1]. An open question that is critically important for scientists and policy makers is ...
  • Analog wormholes and black hole laser effects in hydrodynamics 

    Peloquin, C; Euvé, L-P; Philbin, T; Rousseaux, G (American Physical Society, 2016-04-18)
    We numerically study water wave packets on a spatially varying countercurrent in the presence of surface tension. Depending on the details of the velocity profile, we show that traversable and bidirectional analogue wormholes ...