Browsing Cambridge University by Title
Now showing items 41-60 of 1268
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A Quantum Paradox of Choice: More Freedom Makes Summoning a Quantum State Harder
(American Physical SocietyPhysical Review A, 2016)The properties of quantum information in space-time can be investigated by studying operational tasks, such as ‘summoning’, in which an unknown quantum state is supplied at one point, and a call is made at another for it ...
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A regularised singularity approach to phoretic problems
(SpringerThe European Physical Journal E, 2015-12-28)An efficient, accurate, and flexible numerical method is proposed for the solution of the swimming problem of one or more autophoretic particles in the purely diffusive limit. The method relies on successive boundary element ...
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A sensor for combustion thermometry based on blue diode lasers.
(University of CambridgeMagdalene College, 2006-05-23)Spatially-resolved measurements of flame temperature have been demonstrated with diode lasers for the first time. The technique is based on the use of blue diode lasers to perform laser-induced fluorescence on indium atoms ...
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A short proof that every finite graph has a tree-decomposition displaying its tangles
(ElsevierEuropean Journal of Combinatorics, 2016-06-08)We give a short proof that every finite graph (or matroid) has a tree-decomposition that displays all maximal tangles. This theorem for graphs is a central result of the graph minors project of Robertson and Seymour and ...
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A simple Bayesian estimate of direct RNAi gene regulation events from differential gene expression profiles
(2011-05-20)Abstract Background Microarrays are commonly used to investigate both the therapeutic potential and functional effects of RNA interfering (RNAi) oligonucleotides such as microRNA (miRNA) and small interfering RNA (siRNA). ...
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A squirmer across Reynolds numbers
(Cambridge University PressJournal of Fluid Mechanics, 2016)The self-propulsion of a spherical squirmer - a model swimming organism that achieves locomotion via steady tangential movement of its surface - is quantified across the transition from viscously to inertially dominated ...
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A study of discontinuous Galerkin methods for thin bending problems
(Computational Mechanics: Solids Structures and Coupled ProblemsComputational Mechanics: Solids Structures and Coupled Problems, 2006)Various continuous/discontinuous Galerkin formulations are examined for the analysis of thin plates. These methods rely on weak imposition of continuity of the normal slope across element boundaries. We draw here upon ...
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A Symplectic Prolegomenon
(American Mathematical SocietyBulletin of the American Mathematical Society, 2014)A symplectic manifold gives rise to a triangulated A∞-category, the derived Fukaya category, which encodes information on Lagrangian submanifolds and dynamics as probed by Floer cohomology. This survey aims to give some ...
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A systems approach to improving patient safety through medical device purchasing
(University of CambridgeDepartment of EngineeringSt John's College, 2010-10-12)The purchase of medical devices involves engaging various stakeholders as well as balancing clinical, technical and financial requirements. Failure to consider these requirements can lead to wider consequences in the ...
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A Tool for the Spectral Analysis of the Laser Doppler Anemometer Data of the Cambridge Stratified Swirl Burner
(Department of Engineering, University of Cambridge, 2012-06-08)A series of flow fields generated by a turbulent methane/air stratified swirl burner are investigated using laser Doppler anemometer (LDA). The LDA provides flow field measurements with comparatively high temporal resolutions. ...
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A two-fluid model for locomotion under self-confinement
(American Physical SocietyPhysical Review Fluids, 2017-09-01)The bacterium Helicobacter pylori causes ulcers in the stomach of humans by invading mucus layers protecting epithelial cells. It does so by chemically changing the rheological properties of the mucus from a high-viscosity ...
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A two-zone model for natural cross-ventilation
(ElsevierBuilding and Environment, 2015-07-01)Cross-ventilation flows (CV) are characterized by significant inflow momentum conservation as fluid flows across an enclosed rectangular volume as a confined jet. When the inflow area is smaller than the volume cross-sectional ...
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A unified framework for resource-bounded autonomous agents interacting with unknown environments
(University of CambridgeDepartment of Engineering, 2011-07-12)The aim of this thesis is to present a mathematical framework for conceptualizing and constructing adaptive autonomous systems under resource constraints. The first part of this thesis contains a concise presentation of ...
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A Variational Model for Joint Motion Estimation and Image Reconstruction
(Society for Industrial and Applied MathematicsSIAM Journal on Imaging Sciences, 2018-01)The aim of this paper is to derive and analyze a variational model for the joint estimation of motion and reconstruction of image sequences, which is based on a time-continuous Eulerian motion model. The model can be set ...
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A WKB approximation of elastic waves travelling on a shell of revolution
(ElsevierJournal of Sound and Vibration, 2016-08-04)This paper is concerned with the elastic waveguide properties of an infinite pipe with circular cross section whose radius varies slowly along its length. The equations governing the elastodynamics of such shells are derived ...
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A Yellow Polariton Condensate in a Dye Filled Microcavity
(WileyAdvanced Optical Materials, 2017-09-18)Polariton condensation in the yellow part of the visible spectrum from a planar organic semiconductor microcavity containing the molecular dye bromine-substituted boron-dipyrromethene is observed. This study provides ...
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Abelian quotients of mapping class groups of highly connected manifolds
(SpringerMathematische Annalen, 2015-10-12)We compute the abelianisations of the mapping class groups of the manifolds W²ⁿ_g = g(Sⁿ × Sⁿ) for n ≥ 3 and g ≥ 5. The answer is a direct sum of two parts. The first part arises from the action of the mapping class group ...
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Abstracting information on body area networks
(University of CambridgeFaculty of Computer Science and TechnologyComputer LaboratoryMagdalene College, 2012-01-10)Healthcare is changing, correction...healthcare is in need of change. The population ageing, the increase in chronic and heart diseases and just the increase in population size will overwhelm the current hospital-centric ...
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Accelerated Gravitational Wave Parameter Estimation with Reduced Order Modeling
(APSPhysical Review Letters, 2015-02-20)Inferring the astrophysical parameters of coalescing compact binaries is a key science goal of the upcoming advanced LIGO-Virgo gravitational-wave detector network and, more generally, gravitational-wave astronomy. However, ...
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Acoustic boundary conditions at an impedance lining in inviscid shear flow
(Cambridge University PressJournal of Fluid Mechanics, 2016)The accuracy of existing impedance boundary conditions is investigated, and new impedance boundary conditions are derived, for lined ducts with inviscid shear flow. The accuracy of the Ingard–Myers boundary condition is ...