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 6 of 6 for “"density regime"”.
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Provable Algorithms for Learning and Variational Inference in Undirected Graphical Models
… inference on an Ising model in the optimal density regime. These different problems illustrate a set of key principles, such as the diverse algorithmic applications of “pinning” variables in graphical models. We also show in some cases that these results are nearly optimal due to matching …
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Flow regimes in canopy turbulence
This thesis investigates turbulent flow regimes over canopies using direct numerical simulations. The term `canopy' refers to a group of substantial roughness elements protruding into the flow, which generally results in two distinct regions of interest: the near-canopy region, where the flow is …
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Full-wave modeling of lower hybrid waves on Alcator C-Mod
… ponderomotive forces to be compatible with the density depletion which is measured in front of the antenna in presence of high power LH waves. The second code, named LHEAF, solves the problem of LH wave propagation in a hot non- Maxwellian plasma. The electron Landau damping (ELD) effect was …
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Characterization of the Transition Region in the QCD Phase Diagram
… through lattice simulations in the low density regime. The transition between ordinary matter and a deconfined Quark Gluon Plasma was shown from lattice QCD to be a smooth crossover. It is probed experimentally in relativistic heavy-ion collisions at the Brookhaven National Laboratiory …
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Pulsed-Laser-Induced Melting and Solidification of Thin Metallic Films
… as a function of increasing incident energy density. This observation is consistent with the findings that were made previously using other materials, and basically indicates that lateral solidification continues until the interface is halted by the interfaces growing from nucleated solids, …
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Study of ergodic divertor edge density regimes on the tokamaks Tore Supra and TEXTOR, and sensitivity of tunnel probe electron temperature measurements to a suprathermal electron component
… magnetic topology to changes in the central density. A second topic of this thesis concerns certain interpretation issues regarding the current-voltage characteristics obtained by a newly developed type of Langmuir probe for the investigation of edge plasmas. More in particular, the …