Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"topological change"”.
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A Hybrid Variational-Level Set Approach to Handle Topological Changes
… allowing explicit, Lagrangian meshes to undergo topological changes in an automatic way. We employ a method for detecting when topological changes are imminent. When a change occurs, we use a level set method to guide the change of topology of the domain mesh. This is then followed by an …
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Registration of Images with Varying Topology using Embedded Maps
In medical images, intensity changes caused by certain pathology can change the topology of image level-sets and are thus commonly referred to as topological changes. Topological changes cause false deformation in existing deformable registration algorithms, which in turn leads to unreliable …
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FORMATION, REFINEMENT, AND REORGANISATION OF COMPLEX BRAIN NETWORK TOPOLOGY ACROSS THE LIFESPAN
… the organisation of these connections form and changes across the lifespan. In Chapter 1, I provide theoretical background about the study of complex systems and the common properties observed across them – small-worldness, scale-free degree distributions and modularity. Diving deeper in brain …
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A unified multi-physics formulation for combustion modelling
… shared interfaces, which may undergo severe topological change. We also wish to consider elastic and plastic structural response of the confiners, rather than make a hydrodynamic assumption for their behaviour. Recently developed methodologies meet these requirements by means of the …
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Lifshitz transitions in RCo5 (R=Y, La) and in Osmium
… find anomalies of elastic properties induced by topological changes of the Fermi surface. The latter are called "Lifshitz transitions". Lifshitz transitions are an interesting subject to study because a topological change of the Fermi surface results in a van Hove singularity of the …