Now showing items 303-322 of 3760

  • Bifurcation to heteroclinic cycles and sensitivity in three and four coupled phase oscillators 

    Ashwin, Peter; Burylko, Oleksandr; Maistrenko, Yuri (Elsevier, 2008)
    We study the bifurcation and dynamical behaviour of the system of N globally coupled identical phase oscillators introduced by Hansel, Mato and Meunier, in the cases N=3 and N=4. This model has been found to exhibit robust ...
  • 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 ...
  • Bio-inspired iridescent layer-by-layer assembled cellulose nanocrystal Bragg stacks 

    Tzeng, P.; Hewson, D.J.; Vukusic, Peter; Eichhorn, Stephen J.; Grunlan, J.C. (Royal Society of Chemistry, 2015)
    Layer-by-layer (LbL) assembly was used to fabricate a synthetic analogue of the color producing multilayered structure commonly found in many biological systems, particularly Coleoptera. The resulting iridescent films ...
  • Bioavailability of nanoscale metal oxides TiO(2), CeO(2), and ZnO to fish 

    Johnston, B.D.; Scown, Tessa M.; Moger, Julian; Cumberland, Susan A.; Baalousha, Mohamed; Linge, Kathryn; van Aerle, Ronny; Jarvis, Kym; Lead, Jamie R.; Tyler, Charles R. (American Chemical Society, 2010-02-01)
    Nanoparticles (NPs) are reported to be a potential environmental health hazard. For organisms living in the aquatic environment, there is uncertainty on exposure because of a lack of understanding and data regarding the ...
  • Biomass burning related ozone damage on vegetation over the Amazon forest: A model sensitivity study 

    Pacifico, F; Folberth, GA; Sitch, S; Haywood, JM; Rizzo, LV; Malavelle, FF; Artaxo, P (European Geosciences Union, 2015-03-10)
    The HadGEM2 earth system climate model was used to assess the impact of biomass burning on surface ozone concentrations over the Amazon forest and its impact on vegetation, under present-day climate conditions. Here we ...
  • Biomechanics of fibrous proteins of the extracellular matrix studied by Brillouin scattering 

    Palombo, F; Winlove, CP; Edginton, RS; Green, E; Stone, N; Caponi, S; Madami, M; Fioretto, D (Royal Society, 2014-10-08)
    Brillouin light scattering (BLS) spectroscopy is a technique that is able to detect thermally excited phonons within a material. The speed of propagation of these phonons can be determined from the magnitude of the Brillouin ...
  • Bistability in feedback circuits as a byproduct of evolution of evolvability 

    Kuwahara, Hiroyuki; Soyer, Orkun S. (2012)
    Noisy bistable dynamics in gene regulation can underlie stochastic switching and is demonstrated to be beneficial under fluctuating environments. It is not known, however, if fluctuating selection alone can result in ...
  • Black Hole Lasers Revisited 

    Leonhardt, Ulf; Philbin, Thomas G. (Springer, 2007)
    The production of Hawking radiation by a single horizon is not dependent on the high-frequency dispersion relation of the radiated field. When there are two horizons, however, Corley and Jacobson have shown that superluminal ...
  • Blind source separation for non-stationary mixing 

    Everson, Richard M.; Roberts, Stephen (2000)
    Blind source separation attempts to recover independent sources which have been linearly mixed to produce observations. We consider blind source separation with non-stationary mixing, but stationary sources. The linear ...
  • Blowout bifurcation in a system of coupled chaotic lasers 

    Ashwin, Peter; Terry, John R.; Thornburg, K. Scott; Roy, Rajarshi (American Physical Society, 1998)
    We show that loss of synchronization of two identical coupled chaotic class B lasers can occur via a blowout bifurcation. This occurs when a transverse Lyapunov exponent governing the stability of a synchronized subspace ...
  • Blue, surface-emitting, distributed feedback polyfluorene lasers 

    Heliotis, G.; Xia, R.; Bradley, D. D. C.; Turnbull, G. A.; Samuel, I. D. W.; Andrew, P.; Barnes, William L. (American Institute of Physics, 2003)
    We report the fabrication of optically-pumped solid-state distributed feedback lasers utilizing two blue-light-emitting semiconducting polyfluorenes as gain media. The lasers were readily fabricated by solution deposition ...
  • Boron nitride encapsulated graphene infrared emitters 

    Barnard, HR; Zossimova, E; Mahlmeister, NH; Lawton, LM; Luxmoore, IJ; Nash, GR (AIP Publishing, 2016-03-28)
    The spatial and spectral characteristics of mid-infrared thermal emission from devices containing a large area multilayer graphene layer, encapsulated using hexagonal boron nitride, have been investigated. The devices were ...
  • Boron-Doped Diamond Dual-Plate Deep-Microtrench Device for Generator-Collector Sulfide Sensing 

    Harvey, HM; Gross, AJ; Brooksby, P; Downard, AJ; Green, SJ; Winlove, CP; Benjamin, N; Winyard, PG; Whiteman, M; Hammond, JL; Estrela, P; Marken, F (Wiley, 2015-07-14)
    A BDD-BDD dual-plate microtrench electrode with 6μm inter-electrode spacing is investigated using generator-collector electrochemistry and shown to give microtrench depth-dependent sulfide detection down to the μM levels. ...
  • The Bottaccione section at Gubbio, central Italy: a classical Paleocene Tethyan setting revisited 

    Galeotti, S; Moretti, M; Cappelli, C; Phillips, J; Lanci, L; Littler, K; Monechi, S; Petrizzo, MR; Premoli Silva, I; Zachos, JC (Schweizerbart Science Publishers, 2015-08-03)
    The Upper Cretaceous to Paleocene succession cropping out at the Bottaccione section (Gubbio, central Italy) represents a classical Tethyan setting that served as a standard for the construction of the geomagnetic polarity ...
  • Boundary-layer effects on acoustic transmission through narrow slit cavities 

    Ward, GP; Lovelock, RK; Murray, AR; Hibbins, Alastair P.; Sambles, J. Roy; Smith, JD (American Physical Society, 2015-07-21)
    We explore the slit-width dependence of the resonant transmission of sound in air through both a slit array formed of aluminum slats and a single open-ended slit cavity in an aluminum plate. Our experimental results accord ...
  • Bounded Lüroth expansions: applying Schmidt games where infinite distortion exists 

    Mance, B; Tseng, J (Polskiej Akademii Nauk, Instytut Matematyczny, 2013)
    We show that the set of numbers with bounded L uroth expansions (or bounded L uroth series) is winning and strong winning. From either winning property, it immediately follows that the set is dense, has full Hausdor ...
  • Bounded real and positive real balanced truncation for infinite-dimensional systems 

    Guiver, Chris; Opmeer, Mark R. (American Institute of Mathematical Sciences, 2013)
    Bounded real balanced truncation for infinite-dimensional systems is considered. This provides reduced order finite-dimensional systems that retain bounded realness. We obtain an error bound analogous to the finite-dimensional ...
  • Bounds on the dynamics of sink populations with noisy immigration 

    Eager, Eric Alan; Guiver, Chris; Hodgson, David J.; Rebarber, Richard; Stott, Iain; Townley, Stuart (Elsevier, 2014)
    Sink populations are doomed to decline to extinction in the absence of immigration. The dynamics of sink populations are not easily modelled using the standard framework of per capita rates of immigration, because numbers ...
  • Bovine and degenerated human annulus fibrosus: a microstructural and micromechanical comparison 

    Vergari, C; Chan, D; Clarke, A; Mansfield, J; Meakin, JR; Winlove, PC (Springer Verlag, 2017-04-04)
    The complex structure of the annulus fibrosus is strongly related to its mechanical properties. Recent work showed that it is possible to observe the relative movement of fibre bundles in loaded cow tail annulus; the aim ...
  • The breakdown of static and evolutionary allometries during climatic upheaval 

    Brombacher, A; Wilson, PA; Bailey, I; Ezard, THG (University of Chicago Press, 2017-06-09)
    The influence of within-species variation and covariation on evolutionary patterns is well established for generational and macroevolutionary processes, most prominently through genetic lines of least resistance. However, ...