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 20 of 272 for “"non-local"”.
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Non-local gauge field theory
This is a study of Non-Local Gauge Invariant Quantum Field Theory. NonLocal gauge invariance is an extension of the group of local gauge transformations that has been extensively used in construction of physical theories. We show how this larger group is rich enough to accommodate a new theory of …
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Algoritmo Non-Local Means e Otimizações.
… to enhance the visualization of images. The Non-Local Means algorithm has great results in noise removal, although its computational complexity is high, making the algorithm not viable for practical use. Many papers have been presented with the objective of enhance the performance of the …
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Non-Local Thermodynamic Equilibrium in Laser-Sustained Plasmas
… studied spectroscopically and the existence of a non-local thermodynamic state has been determined. The spectroscopic data consist of several argon neutral and ion line emissions used to spatially resolve electronic energy level population densities in each plasma species. A hydrogen seed in added …
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A tensor product approach to non-local differential complexes
… spaces associated with (generally) unbounded non-local operators, such as operators of fractional Laplacian type. We show that these complexes can be used to approximate complexes of differential forms in a non-local-to-local convergence on the level of cores. Under an absolute continuity …
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Entangled protocols and non-local games for testing quantum systems.
… of bounding the role of quantum entanglement in non-local processes. This is important for understanding the upper limit on the power of multi-prover interactive proof systems with entangled provers. In particular it establishes that, assuming the Strong Kirchberg Conjecture, one can provide a …
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Machine learning non-local closures for turbulent anisotropic multiphase flows
In this thesis we formulate a data-driven, nonlocal closure scheme for turbulent multiphase fluid flows. In more detail, we use the predictions of neural nets to actively integrate in time the evolution of a turbulent anisotropic fluid flow on which bubbles that act as passive inertial tracers are …
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Thermal Effects on Spin Currents in Non-Local Metallic Spin Valves
<p>The study of non-local spin valves (NLSVs) has recently proven to be a fertile area for both applied and fundamental research in nanomagnetism due to the unique ability to separate charge currents and spin currents. NLSVs may also prove essential for a new class of high-density hard disk read …
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On the derivation of non-local diffusion equations in confined spaces
The subject of the thesis is the derivation of non-local diffusion equations from kinetic models with heavy-tailed equilibrium in velocity. We are particularly interested in confining the kinetic equations and developing methods that allow us, from the confined kinetic models, to derive confined …
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A novel uterine manipulator incorporating non-local controls and lateral motion
… Second, our manipulator features a cable-driven "non-local control" handle that can be clamped anywhere along the side of the operating table. Besides these two essential improvements, the surgeons are able to adjust the in and out motion of the manipulator from the foot pedal. With the improved …
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Intrinsic contractivity for some non-symmetric Lévy processes with non-local operators
In this thesis we consider two types of non-symmetric processes, which are similar to the symmetric α-stable process. We derive sharp estimates for the eigenfunctions of the Feynman- Kac semigroups of these two types of processes and established their intrinsic contractivities. Our methods are …
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Stability of large-scale oceanic flows and the importance of non-local effects
… largescale oceanic flows and the importance of non-local effects. The first problem examines the stability of meridional boundary currents, which are found on both sides of most ocean basins because of the presence of continents. A linear stability analysis of a meridional boundary current on …
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Stability of large-scale oceanic flows and the importance of non-local effects
… largescale oceanic flows and the importance of non-local effects. The first problem examines the stability of meridional boundary currents, which are found on both sides of most ocean basins because of the presence of continents. A linear stability analysis of a meridional boundary current on …
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Comparison of classical and non-local transport theories in a "perfectly" sampled sandstone slab
Includes bibliographical references (pages 95-100).
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Precipitation Recycling as a Mechanism for Ecoclimatological Stability Through Local and Non-Local Interactions
Different physical mechanisms drive precipitation recycling in each region. In the Midwestern United States, evapotranspiration is not significantly affected by soil moisture anomalies, and there is a high recycling ratio during periods of reduced total precipitation. The reason is that, during …
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The structure of optimal and nearly-optimal quantum strategies for non-local XOR games
… and nearly-optimal quantum strategies for non-local XOR games. First, we prove the following general result: for every non-local XOR game, there exists a set of relations with the properties: (1) a quantum strategy is optimal for the game if and only if it satisfies the relations, and (2) a …
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A Hartree-Fock calculation for finite nuclei with a non-local two-body potential.
Massachusetts Institute of Technology. Dept. of Physics. Thesis. 1965. Ph.D.
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Wittgenstein and irreducible uncertainty: therapeutic implications for education of a non-local model of mind
… the same acceptance. Moreover it is claimed that local, hidden mental states can not explain human rule-following. Even if we had access to the full array of mental states and a complete list of previous examples it is argued that there could still be no local e planation or prediction of future …
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Analysis of performance and robustness of biological switches: local tools for non-local dynamical phenomena.
… switches are often high dimensional and nonlinear. Therefore, an analysis of these systems is challenging. In this dissertation, we try to identify principles and tools to study the performance and robustness of biological switches. Our first contribution is to highlight the dynamical …
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Scalable High-Resolution Simulation of the Prey-Predator Model, with a Non-Local Consumption of Prey
… model’s integral predation term produces stiff, non-local dynamics that present a challenge to traditional explicit or fully implicit solvers. This study overcome this barrier by incorporating a third-order Krylov Subspace Spectral (KSS) time integrator into a Fourier spectral spatial …
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