Department of Materials Science and Metallurgy: Recent submissions

Now showing items 161-180 of 648

  • On superconformal anyons 

    Doroud, Nima; Tong, David; Turner, Carl (SpringerJournal of High Energy Physics, 2016-01-22)
    In d = 2+1 dimensions, there exist field theories which are non-relativistic and superconformal. These theories describe two species of anyons, whose spins differ by 1/2, interacting in a harmonic trap. We compute the ...

  • Acoustic Scattering by a Finite Rigid Plate with a Poroelastic Extension 

    Ayton, Lorna Jane (Cambridge University PressJournal of Fluid Mechanics, 2016-02-24)
    The scattering of sound by a finite rigid plate with a finite poroelastic extension interacting with an unsteady acoustic source is investigated to determine the effects of porosity, elasticity, and the length of the ...

  • Research data supporting "Diffusion tensor imaging with deterministic error bounds" 

    Gorokh, Artur; Korolev, Yury; Valkonen, Tuomo (2016-01-22)

  • Three-dimensional flow in Kupffer's Vesicle 

    Montenegro-Johnson, Thomas Douglas; Baker, DI; Smith, DJ; Lopes, SS (SpringerJournal of Mathematical Biology, 2016-01-29)
    Whilst many vertebrates appear externally left-right symmetric, the arrangement of internal organs is asymmetric. In zebrafish, the breaking of left-right symmetry is organised by Kupffer’s Vesicle (KV): an approximately ...

  • Using stratification to mitigate end-effects in quasi-Keplerian Taylor-Couette flow 

    Leclercq, Colin; Partridge, Jamie L; Augier, Pierre; Dalziel, Stuart Bruce; Kerswell, Richard Rodney (Cambridge University PressJournal of Fluid Mechanics, 2016-02-24)
    Efforts to model accretion disks in the laboratory using Taylor–Couette flow apparatus are plagued with problems due to the substantial impact the end-plates have on the flow. We explore the possibility of mitigating the ...

  • Research data supporting: "Using stratification to mitigate end-effects in quasi-Keplerian Taylor-Couette flow" 

    Leclercq, Colin; Partridge, Jamie. L.; Augier, Pierre; Dalziel, Stuart B.; Kerswell, Rich. R. (2016-01-19)

  • Gravity-dominated unequal-mass black hole collisions 

    Sperhake, Ulrich; Berti, Emanuele; Cardoso, Vitor; Pretorius, Frans (APSPhysical Review D, 2016-02-04)
    We continue our series of studies of high-energy collisions of black holes investigating unequalmass, boosted head-on collisions in four dimensions. We show that the fraction of the center-of-mass energy radiated as ...

  • Twistors and the massive spinning particle 

    Mezincescu, Luca; Routh, Alasdair J; Townsend, Paul Kingsley (IOP ScienceJournal of Physics A: Mathematical and Theoretical, 2015-12-07)
    Gauge-invariant twistor variables are found for the massive spinning particle with N-extended local worldline supersymmetry, in spacetime dimensions D = 3, 4, 6. The twistor action is manifestly Lorentz invariant but the ...

  • Motility of Colonial Choanoflagellates and the Statistics of Aggregate Random Walkers 

    Kirkegaard, Julius Bier; Marron, Alan Oliver; Goldstein, Raymond Ethan (American Physical SocietyPhysical Review Letters, 2016-01-22)
    We illuminate the nature of the three-dimensional random walks of microorganisms composed of individual organisms adhered together. Such aggregate random walkers are typified by choanoflagellates, eukaryotes that are the ...

  • Exploiting the Feller Coupling for the Ewens Sampling Formula 

    Arratia, Richard; Barbour, AD; Tavaré, Simon (Institute of Mathematical StatisticsStatistical Science, 2016-02-10)

  • Convective mass transfer from a submerged drop in a thin falling film 

    Landel, Julien R; Thomas, AL; McEvoy, H; Dalziel, Stuart Bruce (Cambridge University PressJournal of Fluid Mechanics, 2016-01-25)
    We study the fluid mechanics of removing a passive tracer contained in small, viscous drops attached to a flat inclined substrate using thin gravity-driven film flows. A convective mass transfer establishes across the ...

  • Periodization, translation, prescription and the emergence of Classical French 

    Ayres-Bennett, Wendy Margaret; Caron, Philippe (WileyTransactions of the Philological Society, 2016-03-17)
    In this article we demonstrate how fine-grained analysis of salient features of linguistic change over a relatively short, but significant period can help refine our notions of periodization. As our case study, we consider ...

  • The synthesis of di-carboxylate esters using continuous flow vortex fluidics 

    Britton, Joshua; Dalziel, Stuart Bruce; Raston, Colin L (Royal Society of ChemistryGreen Chemistry, 2015-12-01)
    A vortex fluidic device (VFD) is effective in mediating the synthesis of di-esters at room temperature. Processing under ambient conditions allows for a simple and efficient synthesis, whilst operating under continuous ...

  • Vortices and Monopoles in a Harmonic Trap 

    Tong, David; Turner, Carl (SpringerJournal of High Energy Physics, 2015-12-15)
    The Ω-deformation is a harmonic trap, penning certain excitations near the origin in a manner consistent with supersymmetry. Here we explore the dynamics of BPS monopoles and vortices in such a trap. We pay particular ...

  • Dependence on aspect ratio of symmetry breaking for oscillating foils: implications for flapping flight 

    Deng, Jian; Caulfield, Colm-cille Patrick (Cambridge University PressJournal of Fluid Mechanics, 2015-12-07)
    Using two-dimensional direct numerical simulations, we investigate the flow in a fluid of kinematic viscosity ν and density ρ around elliptical foils of density ρ_s with major axis c and minor axis b for three different ...

  • The Quantum Hall Effect in Supersymmetric Chern-Simons Theories 

    Tong, David; Turner, Carl (APSPhysical Review B, 2015-12-15)
    We introduce a supersymmetric Chern-Simons theory whose low energy physics is that of the fractional quantum Hall effect. The supersymmetry allows us to solve the theory analytically. We quantise the vortices and, by ...

  • Dynamics of buoyant releases in confined spaces. 

    Barnett, Steven John. (University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 1992-01-28)
    The flows that may result from the release of a buoyant fluid from a small source in a confined space are varied and complex, depending on the source characteristics, the confining geometry and container ventilation. ...

  • Graviton time delay and a speed limit for small black holes in Einstein-Gauss-Bonnet theory 

    Papallo, Giuseppe; Reall, Harvey Stephen (SpringerJournal of High Energy Physics, 2015-11-17)
    Camanho, Edelstein, Maldacena and Zhiboedov have shown that gravitons can experience a negative Shapiro time delay, i.e. a time advance, in Einstein-Gauss-Bonnet theory. They studied gravitons propagating in singular ...

  • Geometric algebra and its application to mathematical physics 

    Doran, Christopher John Leslie (University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 1994)

  • Elasticity and Glocality: Initiation of Embryonic Inversion in Volvox 

    Haas, Pierre; Goldstien, Raymond E (Royal Society PublishingJournal of the Royal Society Interface, 2015-10-21)
    Elastic objects across a wide range of scales deform under local changes of their intrinsic properties, yet the shapes are glocal, set by a complicated balance between local properties and global geometric constraints. ...