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Now showing items 151-160 of 221
Asymptotic analysis of cold sandwich rolling
(ElsevierInternational Journal of Mechanical Sciences, 2015-12-22)
An analytical model for the cold rolling of sandwich sheets is proposed, assuming a rigid-plastic flow rule and Coulomb friction. Asymptotic analysis is used to solve the equations based on the assumptions of small aspect ...
Energy requirement for a working dynamo
(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 ...
Standard model physics from an algebra?
(2015)
This thesis constitutes a first attempt to derive aspects of standard model particle physics from little more than an algebra. Here, we argue that physical concepts such as particles, causality, and irreversible time may ...
Charge quantization from a number operator
(ElsevierPhysics Letters B, 2015-01-26)
We explain how an unexpected algebraic structure, the division algebras, can be seen to underlie a generation of quarks and leptons. From this new vantage point, electrons and quarks are simply excitations from the neutrino, ...
Optimal amount of entanglement to distinguish quantum states instantaneously
(American Physical SocietyPhysical Review A, 2015-11-30)
We introduce an aspect of nonlocality which arises when the task of quantum states distinguishability is considered under local operations and shared entanglement in the absence of classical communication. We find the ...
Graviton time delay and a speed limit for small black holes in Einstein-Gauss-Bonnet theory
(Journal of High Energy Physics, 2015-11-17)
The Evolution of a Supermassive Retrograde Binary Embedded in an Accretion Disk
(Open Astronomy, 2015-01-01)
The effects of an opposing buoyancy force on the performance of an air curtain in the doorway of a building
(ElsevierEnergy and Buildings, 2015-06-01)
We investigate the effects of an opposing buoyancy force on the performance of an air curtain in the doorway which separates a warm indoor environment from the cold exterior. Such an opposing buoyancy force arises for ...
The contact property for magnetic flows on surfaces
(University of CambridgeDepartment of Pure Mathematics and Mathematical StatisticsTrinity College, 2015-01-06)
This work investigates the dynamics of magnetic flows on closed orientable Riemannian surfaces. These flows are determined by triples (M, g, σ), where M is the surface, g is the metric and σ is a 2-form on M . Such dynamical ...
Hypergraph containers
(SpringerInventiones Mathematicae, 2015-01-08)
We develop a notion of containment for independent sets in hypergraphs. For every r-uniform hypergraph G, we find a relatively small collection C of vertex subsets, such that every independent set of G is contained within ...