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Now showing items 81-90 of 132
Adjoint-based optimization of displacement ventilation flow
(ElsevierBuilding and Environment, 2017-11-01)
We demonstrate the use of the ‘Direct-Adjoint-Looping method’ for the identification of optimal buoyancy-driven ventilation flows governed by Boussinesq equations. We use the incompressible Reynolds-averaged Navier-Stokes ...
Entropic Comparison of Atomic-Resolution Electron Tomography of Crystals and Amorphous Materials
(American Physical SocietyPhysical Review Letters, 2017-10-20)
Electron tomography bears promise for widespread determination of the three-dimensional arrangement of atoms in solids. However, it remains unclear whether methods successful for crystals are optimal for amorphous solids. ...
Zonal flows in accretion discs and their role in gravito-turbulence
(University of CambridgeDepartment of Applied Mathematics and Theoretical Physics (DAMTP)St Edmund's, 2017-10-01)
This thesis focuses on the evolution of zonal flows in self-gravitating accretion discs and their resulting effect on disc stability; it also studies the process of disc gravito-turbulence, with particular emphasis given ...
Spontaneous oscillations of elastic filaments induced by molecular motors.
(The Royal SocietyJournal of the Royal Society, Interface, 2017-11)
It is known from the wave-like motion of microtubules in motility assays that the piconewton forces that motors produce can be sufficient to bend the filaments. In cellular phenomena such as cytosplasmic streaming, molecular ...
Newtonian Twistor Theory
(University of CambridgeDAMTPTrinity College, 2017-10-01)
In twistor theory the nonlinear graviton construction realises four-dimensional antiself-
dual Einstein manifolds as Kodaira moduli spaces of rational curves in threedimensional
complex manifolds. We establish a Newtonian ...
The Complexity of Translationally Invariant Spin Chains with Low Local Dimension
(Annales Henri Poincaré, 2017-11)
We prove that estimating the ground state energy of a
translationally-invariant, nearest-neighbour Hamiltonian on a 1D spin chain is
QMAEXP-complete, even for systems of low local dimension (roughly 40). This is
an improvement ...
Symmetries and geometrical properties of dynamical fluctuations in molecular dynamics
(Entropy, 2017-10-01)
We describe some general results that constrain the dynamical fluctuations that can occur in non-equilibrium steady states, with a focus on molecular dynamics. That is, we consider Hamiltonian systems, coupled to external ...
Alternating Direction Implicit (ADI) schemes for a PDE-based image osmosis model
(Journal of Physics: Conference Series, 2017-10-22)
© Published under licence by IOP Publishing Ltd. We consider Alternating Direction Implicit (ADI) splitting schemes to compute efficiently the numerical solution of the PDE osmosis model considered by Weickert et al. in ...
A new class of de Sitter vacua in type IIB large volume compactifications
(JOURNAL OF HIGH ENERGY PHYSICS, 2017-10-26)
Mathematical modelling of asymmetrical metal rolling processes
(University of CambridgeDAMTPJesus College, 2017-12-05)
This thesis explores opportunities in the mathematical modelling of metal rolling processes, specifically asymmetrical sheet rolling. With the application of control systems in mind, desired mathematical models must make ...