Browsing Cambridge University by Title

Now showing items 343-362 of 1268

  • Einstein–Weyl spaces and near-horizon geometry 

    Dunajski, Maciej Lukasz; Gutowski, J; Sabra, W (IOP PublishingClassical and Quantum Gravity, 2017-02-02)
    We show that a class of solutions of minimal supergravity in five dimensions is given by lifts of three-dimensional Einstein–Weyl structures of hyper-CR type. We characterise this class as most general near-horizon limits ...

  • 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. ...

  • Elastocapillarity: adhesion and large deformations of thin sheets 

    Wagner, Till Jakob Wenzel (University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 2013-09-03)
    This thesis is concerned with the deformation and adhesion of thin elastic sheets that come into contact with an underlying substrate. The focus of this work is on the interplay between material and geometric properties ...

  • Elastohydrodynamic synchronization of adjacent beating flagella 

    Goldstein, Raymond Ethan; Lauga, Eric Jean-Marie; Pesci, Adriana Irma; Proctor, Michael Richard (American Physical SocietyPhysical Review Fluids, 2016-11-01)
    It is now well established that nearby beating pairs of eukaryotic flagella or cilia typically synchronize in phase. A substantial body of evidence supports the hypothesis that hydrodynamic coupling between the active ...

  • Electromagnetic transition strengths for light nuclei in the Skyrme model 

    Haberichter, M; Lau, PHC; Manton, Nicholas Stephen (American Physical SocietyPhysical Review C, 2016-03-07)
    We calculate reduced B(E2) electromagnetic transition strengths for light nuclei of mass numbers B = 8,12,16,20,24, and 32 within the Skyrme model. We find that the predicted transition strengths are of the correct order ...

  • Elliptic curves over Q$_{∞}$ are modular 

    Thorne, Jack Arfon
    We show that if $\textit{p}$ is a prime, then all elliptic curves de ned over the cyclotomic $\mathbb{Z}$$_{p}$-extension of Q are modular.

  • Embedded discontinuities for softening solids 

    Wells, Garth Nathan; Sluys, LJ (Proceedings of the 4th Asia-Pacific Conference on Computational Mechanics (APCOM '99)Proceedings of the 4th Asia-Pacific Conference on Computational Mechanics (APCOM '99), 1999-12-06)
    Additional, discontinuous functions are added to the displacement field of standard finite elements in order to capture highly localised zones of intense straining. By embedding discontinuities within an element it is ...

  • Emission-angle and polarization-rotation effects in the lensed CMB 

    Lewis, A; Hall, A; Challinor, Anthony David
    Lensing of the CMB is an important effect, and is usually modelled by remapping the unlensed CMB fields by a lensing deflection. However the lensing deflections also change the photon path so that the emission angle is no ...

  • Empirical Bayes method for reducing false discovery rates of correlation matrices with block diagonal structure 

    Pacini, Clare; Ajioka, JW; Micklem, Gos (BioMed CentralBMC Bioinformatics, 2017-04-12)
    $\textbf{Background:}$ Correlation matrices are important in inferring relationships and networks between regulatory or signalling elements in biological systems. With currently available technology sample sizes for ...

  • Empirical modelling of contagion: a review of methodologies 

    Dungey, Mardi; Fry, Renee; Gonzalez-Hermosillo, Brenda; Martin, Vance L (CFAP, Cambridge Judge Business School, University of Cambridge, 2003-10)
    The existing literature promotes a number of alternative methods to test for the presence of contagion during financial market crises. This paper reviews those methods and shows how they are related in a unified framework. ...

  • End point of Black Ring Instabilities and the Weak Cosmic Censorship Conjecture 

    Figueras, Pau; Kunesch, Markus; Tunyasuvunakool, Saran (American Physical SocietyPhysical Review Letters, 2016-02-18)
    We produce the first concrete evidence that violation of the weak cosmic censorship conjecture can occur in asymptotically flat spaces of five dimensions by numerically evolving perturbed black rings. For certain thin ...

  • End Point of the Ultraspinning Instability and Violation of Cosmic Censorship 

    Figueras, P; Kunesch, Markus; Lehner, L; Tunyasuvunakool, Saran (American Physical SocietyAmerican Physical SocietyPhysical Review Letters, 2017-04-14)
    We determine the end point of the axisymmetric ultraspinning instability of asymptotically flat Myers-Perry black holes in D = 6 spacetime dimensions. In the nonlinear regime, this instability gives rise to a sequence of ...

  • Endogenous contagion – a panel data analysis 

    Baur, Dirk; Fry, Renee (CFAP, Cambridge Judge Business School, University of Cambridge, 2006)
    This paper proposes a panel data model to analyze contagion in a multivariate framework. The model distinguishes between vulnerability and contagion, and provides a time series of contagion. The most important feature of ...

  • Endogenous Market Turbulence 

    Tambakis, Demosthenes N (CFAP, Cambridge Judge Business School, University of Cambridge, 2006-04)
    In this paper I study a nonlinear feedback trading model which can generate stable, unstable, turbulent or chaotic asset returns depending on market conditions. The dynamics are driven by the stochastic price impact of net ...

  • Energy dissipation rate limits for flow through rough channels and tidal flow across topography (vol 808, pg 562, 2016) 

    Kerswell, Richard Rodney (JOURNAL OF FLUID MECHANICS, 2018-01-10)
    This is a corrigendum

  • Energy requirement for a working dynamo 

    Proctor, Michael Richard (Taylor & FrancisGeophysical & Astrophysical Fluid Dynamics, 2015-10-13)
    There has for many years been interest in finding necessary conditions for dynamo action. These are usually expressed in terms of bounds on integrated properties of the flow. The bounds can clearly be improved when the ...

  • Engineering Fundamentals of Energy Efficiency 

    Cullen, Jonathan M. (University of CambridgeDepartment of Engineering, 2010-03-16)
    Using energy more efficiently is essential if carbon emissions are to be reduced. According to the International Energy Agency (IEA), energy efficiency improvements represent the largest and least costly savings in carbon ...

  • Enhanced active swimming in viscoelastic fluids 

    Riley, Emily E; Lauga, Eric Jean-Marie (IOP PublishingEurophysics Letters, 2014-11-05)
    Swimming microorganisms often self-propel in fluids with complex rheology. While past theoretical work indicates that fluid viscoelasticity should hinder their locomotion, recent experiments on waving swimmers suggest a ...

  • Entrainment by turbulent fountains 

    Burridge, H. C.; Hunt, G. R. (Cambridge University PressJournal of Fluid Mechanics, 2016-02-04)
    Experimental measurements of entrainment by turbulent fountains from circular sources in quiescent uniform environments are presented. Our results span almost four orders of magnitude in the source Froude number (0.004 ≤ ...

  • Entrainment in two coalescing axisymmetric turbulent plumes 

    Cenedese, Claudia; Linden, Paul Frederick (Journal of Fluid Mechanics, 2014-07-11)
    A model of the total volume flux and entrainment occurring in two coalescing axisym-metric turbulent plumes is developed and compared to laboratory experiments. The dynamical evolution of the two plumes is divided into three ...