Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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  • Greaves, George; Sen, S. (2007-01)
    We take familiar inorganic oxide glasses and non-oxide glasses and the liquids from which they derive to review the current understanding of their atomic structure, ranging from the local environments of individual atoms ...
  • Wilding, Martin Charles; Benmore, Chris J.; Weber, J. K. Richard (2008-07)
    Primitive MgO–SiO2 liquids dominate the early history of the Earth and Terrestrial planets. The structures of these liquids and structure-dependent properties, such as viscosity and diffusion, are considered important in ...
  • Barnardo, Twilight; Winter, Rudolf; Hoydalsvik, Kristin (American Chemical Society, 2009-05-15)
    Yttria stabilised zirconia xerogels are heat treated to temperatures of 1000°C, and the evolving structures are analysed using anomalous small-angle X-ray scattering (ASAXS) across two absorption edges. Homogeneous ...
  • Wilding, M. C.; Benmore, C. J.; Weber, J. K. R.; Parise, J. B. (2011)
    This paper will describe the results of in situ high-energy X-ray measurements performed on stable and supercooled oxide liquids using containerless techniques. As will be discussed in the companion paper (Weber et al.), ...
  • Le Messurier, Daniel; Winter, Rudolf; Martin, Christopher M. (2006-07)
    Small-Angle X-ray Scattering (SAXS) is used at two energies, one either side of the zirconium K-edge, to probe the in-situ formation of an alumina-zirconia-silicate ceramic. The use of energies either side of the edge ...
  • Weber, Richard; Benmore, Christopher; Mei, Qiang; Wilding, Martin (American Institute of Physics, 2009)
    High energy, high flux X-ray sources enable new measurements of liquid and amorphous materials in extreme conditions. Aerodynamic levitation in combination with laser beam heating can be used to access high purity and ...
  • Fortes, M. A.; Vaz, M. Fatima; Cox, Simon; Teixeira, Paulo (2007-11)
    We assess the stability of simple two-dimensional clusters of bubbles relative to small displacements of the vertices, at fixed bubble areas. The clusters analysed are: 1) flower clusters consisting of a central bubble of ...
  • Weber, J. K. R.; Benmore, C. J.; Jennings, G.; Wilding, M. C.; Parise, J. B. (2010-12-21)
    Probing the structure of non-equilibrium melts is important to advance the fundamental understanding of liquids and glass formation and development of new materials Combined use of high flux high energy X-rays and fast ...
  • Piccolroaz, A.; Mishuris, G. (2013-02)
    The paper is concerned with the problem of a semi-infinite crack at the interface between two dissimilar elastic half-spaces, loaded by a general asymmetrical system of forces distributed along the crack faces. On the basis ...
  • Breen, Andrew; Jones, R. A.; Fallows, Richard A.; Canals, A. (American Geophysical Union, 2007-08)
    Observations suggest that the interplanetary extensions of coronal mass ejections (iCMEs) may be accelerated or decelerated in their passage through the solar wind. Interplanetary scintillation measurements (IPS) can detect ...
  • Jones, R. A.; Breen, A. R.; Fallows, R. A.; Canals, A.; Bisi, M. M.; Lawrence, G. (2007-08)
    Observations suggest that the interplanetary extensions of coronal mass ejections (iCMEs) may be accelerated or decelerated in their passage through the solar wind. Interplanetary scintillation measurements (IPS) can detect ...
  • Mishuris, Gennady; Movchan, Natasha; Movchan, Alexander; Piccolroaz, Andrea (2012-05-14)
    The interaction of an interfacial crack with small impurities is analysed on the basis of an asymptotic formula derived by the authors. The interaction between the main crack and the defects (e.g. small cracks or inclusions) ...
  • Jones, D. G.; Brieva, A. C.; Jenkins, Tudor; Evans, D. A. (2006-04)
    The internal structure of copper(II)-phthalocyanine (CuPc) thin films grown on SiO2/Si by organic molecular beam deposition has been studied by grazing incidence x-ray reflectometry (GIXR) and atomic force microscopy. The ...
  • Finlayson, Christopher Edward; Haines, Andrew I.; Snoswell, David R. E.; Kontogeorgos, Andreas; Vignolini, Silvia; Baumberg, Jeremy J.; Spahn, Peter; Hellmann, G. Peter (2011)
    We report how the strength of resonant Bragg reflection from polymeric photonic crystals (polymer opals) varies linearly with the refractive-index contrast, Δn, in contrast to the quadratic buildup of Fresnel reflections ...
  • Bronstein, Hugo A.; Finlayson, Christopher Edward; Kirov, Kiril R.; Friend, Richard H.; Williams, Charlotte K. (2008-07-14)
    A series of heteroleptic cyclometalated Ir(III) complexes with the general structure [Ir(piq-X)(2)(acac)] (where piq = 1-phenylisoquinolato, X = bromine, 9,9-dioctyl-2-fluorenyl, poly(9,9-dioctyl-2,7-fluorene), acac = ...
  • Li, Xing; Lu, Q. M.; Li, B. (2007-04-24)
    Two scenarios of possible ion heating due to finite amplitude parallel propagating Alfvén waves in the solar atmosphere are investigated using a one-dimensional test particle approach. (1) A finite amplitude Alfvén wave ...
  • Skinner, Lawrie B.; Barnes, Adrian C.; Salmon, Philip S.; Hennet, Louis; Fischer, Henry E.; Benmore, Chris J.; Kohara, Shinji; Weber, J. K. Richard; Bytchkov, Aleksei; Wilding, Martin C.; Parise, John B.; Farmer, Thomas O.; Pozdnyakova, Irina; Tumber, Sonia K.; Ohara, Koji (2013-01-03)
    The structure of liquid alumina at a temperature similar to 2400 K near its melting point was measured using neutron and high-energy x-ray diffraction by employing containerless aerodynamic-levitation and laser-heating ...
  • Miguel, M. Carmen; Mughal, Adil; Zapperi, Stefano (2011)
    We consider the laminar flow of a vortex crystal in the Corbino disk geometry. Laminar flow can be induced by thermal fluctuations melting the crystal, but also by shear stress after applying a large current at zero ...
  • Cullen, M. J. P.; Douglas, Robert J. (2003-04)
    It is shown how large-amplitude stability results for flows governed by potential-vorticity conservation can be obtained by geometric arguments using rearrangements of functions. The method allows for non-smooth solutions, ...
  • Dorrian, Gareth (Aberystwyth UniversityMathematical and Physical Sciences, 2009)
    This thesis discusses new observations made of large scale solar wind structure during solar minimum conditions. The phenomena of interplanetary radio scintillation (IPS) is exploited and used in conjunction with white ...

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