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 18 of 18 for “"strong mixing"”.
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Asymptotic stochastic analysis of a gravity model for inertial navigation systems
… random fluctuations are assumed to satisfy a strong mixing (asymptotic independence) property; no a priori stationary or isotropy assumptions are made. Results of Khas'minskii (Theory of Probability and Its Applications, Vol. XI, No. 2, 1966, pp 211-228) are extended and applied. In an …
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Mixing by ocean eddies
… lack a, comprehensive understanding of what sets mixing rates. This thesis seeks to advance this understanding through three related studies. First, mixing rates are diagnosed from an eddy-resolving state estimate of the Southern Ocean, revealing a meridional cross-section of effective diffusivity …
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Rotation-Vibration States of Weakly Bound Linear Symmetric Triatomic Molecules: Helium-Hydride and Helium-Deuteride (Hamiltonian, Variation, Direct Coordinate Transformation)
… of internal coordinates. These results show strong mixing between the vibrational modes, especially between symmetric stretch and bend modes for He(,2)H('+). The effect of the motion of the nuclei on the binding energy are examined by calculating the zero point energies in the diatomics and …
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The Effects of Peltier Marking on Semiconductor Growth in a Magnetic Field
… of Peltier marking. The magnetic field is strong enough that inertial effects can be neglected and that viscous effects are confined to boundary layers. The objective of this research is a first step in the development of a method to accurately predict the distribution of dopants and …
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Mechanisms for enhanced turbulence in the Drake Passage region of the Southern Ocean
… ocean due to intense winds and storm forcing, strong currents in the form of the Antarctic Circumpolar Current (ACC) interacting with steep topography, and enhanced mesoscale activity. Consequently, the Southern Ocean is believed to be a hotspot for enhanced oceanic mixing. Due to the remote …
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Mechanisms for enhanced turbulence in the Drake Passage Region of the Southern Ocean
… ocean due to intense winds and storm forcing, strong currents in the form of the Antarctic Circumpolar Current (ACC) interacting with steep topography, and enhanced mesoscale activity. Consequently, the Southern Ocean is believed to be a hotspot for enhanced oceanic mixing. Due to the remote …
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Stochastic Algorithms in Riemannian Manifolds and Adaptive Networks
The combination of adaptive network algorithms and stochastic geometric dynamics has the potential to make a large impact in distributed control and signal processing applications. However, both literatures contain fundamental unsolved problems. The thesis is thus in two main parts. In part I, we …
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Dynamics of irreducible endomorphisms of F_n
… \curvearrowright T is indecomposable--this is a strong mixing property introduced by Guirardel. In this case, we show that the action of H on its minimal invariant subtree T_H has dense orbits if and only if H is finite index in F_n. There is an interesting application to dual algebraic …
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The role of impeller outflow conditions on the performance and stability of airfoil vaned radial diffusers
… vane exit metal angle. This is reflective of the strong mixing processes that occur in the diffuser inlet region. Utilizing effectiveness captures density changes through the diffuser at higher Mach numbers; a 10% increase in pressure recovery is observed as the inlet Mach number is increased from …
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Dipole moment effects in photodetachment from cluster anions
… photodetachment. The results show strong dipole moment effects in the vicinity of direct detachment thresholds due to the presence of dipole-supported states, [I: <super>2</super>P<sub>3/2</sub>)·(Y)<sub><italic>n</italic></sub>] <super>−</super> and …
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Biogenic buildups and carbonate sedimentation, Dry Tortugas Reef Complex, Florida
… fine sand-to silt-sized suspension population. Strong mixing occurs between the gravel and sand population on the storm-degraded shoals, and between the sand and silt population on the lagoon bottom. Sands flanking the reefs and reef banks show minimum mixing hence good degree of sorting. …
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Investigation of PM Formation and Evolution in Plumes Emitted by Heavy-Duty Diesel Vehicles: Wind Tunnel Study
… areas with high turbulence intensity (TI), where strong mixing phenomena occurs and the nucleation mode of the PM is formed. On the other hand, the core of the plume observes a slower cooling and dilution rate. This difference is reflected in the PM formation and evolution of these two distinct …
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The evolution of ocean fronts in the presence of mixed layer turbulence
… various simple parametrisations to describe the mixing properties of this turbulence and hence its effect on the frontal evolution. Here, we use idealised models to examine the influence of this small-scale turbulence on the evolution of ocean fronts in the case of strong mixing. First we …
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Structure of 2-D and 3-D Turbulent Boundary Layers with Sparsely Distributed Roughness Elements
… show that the surface pressure gradient is not strongly influenced by the roughness elements. In general, for both 2-D and 3-D rough-wall TBL, the differences between the two roughness patterns (straight and diagonal), as regards the mean velocities and the Reynolds stresses, are limited to …
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Modelling the transmission dynamics of RSV and the impact of routine vaccination
… using social contact data from 1) a synthetic mixing matrix generated from primarily household occupancy data and 2) a diary study that we conducted in the Kilifi Health and Demographic Surveillance System (KHDSS). The vaccine was assumed to elicit partial immunity equivalent to wild type …
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Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser
… combustion and petroleum refinery because of the strong mixing of gas and solids that yields high heat and mass transfer rates, and reaction rates. In a Fluid Catalytic Cracking (FCC) process, the performance of riser reactor is strongly dependent on the interaction between the fluid and …
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Die Methode der nichtlokalen effektiven Wirkung in höherdimensionalen Raumzeitmodellen
… from the <br>negative tension brane exhibit strong oscillations on the positive tension <br>brane. Although these waves seem strongly suppressed at first sight by the <br>geometry of the bulk M-theory scaling arguments suggest that oscillations of <br>gravitational waves from the …
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Dynamics of water and aqueous protons studied using ultrafast multi-dimensional infrared spectroscopy
… in water, and the transport of excess protons in strong acid solutions. We use ultrafast nonlinear infrared spectroscopy to study hydrogen bond and proton transfer dynamics in water and acids since vibrational frequencies, intensities and line shapes are closely associated with chemical structure …