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 17 of 17 for “"density current"”.
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Initial characteristics of density current flow
Thesis: M.S., Massachusetts Institute of Technology, Department of Civil Engineering, 1950
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Particle Image Velocimetry Study of Density Current Fronts
… while for the latter the interaction between the current and the channel bed can be examined. Results from these experiments are presented, which characterize the flow in terms of the front velocity, the dimensions of the front, the mixing rate and the bed friction coefficient; the variability of …
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Application of a density current model to aircraft observations of the New England coastal front
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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Experiments on transitional regime sediment density flows and resulting deposits
… regarding the sedimentary deposits of submarine density flows. Certain density flows may transition from a more turbulent to a more coherent flow regime e.g. by a loss of velocity in flows with large concentrations of suspended sediment. Such transitional flows are produced when turbulence …
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The influence of steps topography on the behavior of density currents – a numerical study
… These bed features are formed by turbidity currents, and in turn, influence the flow characteristics of the density currents and their sediment transport behavior, thus affecting sedimentation in the oceans. To explore the interaction between density currents and stepped topographies, a …
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Origin, Maintenance and Fine-Scale Structure of 14-15 February 1992 Mesoscale Gravity Wave Observed During Storm-Fest
… The dry surge, which had the characteristics of density current, originated as a foehn-like downslope flow over the Rocky Mountains of southern Colorado and New Mexico. The advancing dry surge provided a continuous energy source for both the mesoscale gravity wave and convection. Internal …
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Multi-Scale Atmospheric Dynamics of Extreme Saharan Dust Storms Resulting in Dust Transport Out of Africa to Iberia and the Atlantic
… with Chemistry (WRF-Chem) simulation. The current new findings include: (1) a double Rossby wave breaking (RWB) process in the polar jet stream linked through nonlinear wave reflection as an upper-level synoptic precursor prior to forming strong dust plumes and (2) the downscale dust plume …
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Attitude Dynamics of Debris Resulting From Upper Stage Fragmentation in Low Earth Orbit
… body in a magnetic field generates eddy currents which create a torque in the opposite direction of the change in the magnetic flux and thus reduce the rotational rate of the body. The eddy currents that generate torques are described by Maxwell's equations. and the generalized Ohm's law …
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Sex Allocation in the Caribbean Coral, <em>Porites astreoides</em> (Lamarck)
… sex allocation among depths, such as population density, current velocity or heterotrophic feeding.</p>
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IDENTIFICATION OF ELECTROREFINER AND CATHODE PROCESSING FAILURE MODES AND DETERMINATION OF SIGNATURE-SIGNIFICANCE FOR INTEGRATION INTO A SIGNATURE BASED SAFEGUARDS FRAMEWORK FOR PYROPROCESSING
… to NMA. PM takes general process data, such as density, current etc., and applies it to safeguards through the use of a statistical framework. Signature Based Safeguards (SBS), a proposed statistical framework for the application of PM techniques, identifies anomalous scenarios and subsequently …
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Development of a Nano-Composite Coating Technology for Improvement of Carbon Steel Pipe to Erosion-Corrosion in Oil Sands Slurry
… SiC nano-particles in bath electrolyte, cathodic current density, current pattern and temperature, affect remarkably the particle deposition which relates directly with the coating performance. Furthermore, the parameters in pulse current electrodeposition also affect the properties and …
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Electrodeposited metal matrix nanocomposites as thin films and high aspect ratio microstructures for MEMS
… appeared inhibited. The change of the Cu partial current density was attributed to the change of copper complexed species. A mathematical model that couples particle mass transport with metal kinetics during Cu--Al2O3 electrodeposition from acidic electrolytes was developed. The model, based on …
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Fundamental studies on electrochemical production of dendrite-free aluminum and titanium-aluminum alloys
… process variables on deposit morphology, cathode current density and their role in production of dendrite-free aluminum. The deposits were characterized using scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Modified electrodes and stirring rate …
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Bone Tissue Engineering: structures and strategies for functional scaffold design and evaluation
… defects which lead to loss of bone mass and density. Current progresses in tissue engineering have shown great potential for creating biological alternatives and new perspectives for the treatment of bone damage and defects. In this approach, scaffolding plays a pivotal role. In particular, …
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Near-vent processes of the 273 ka Poris eruption (Tenerife)
… followed by the generation of a pyroclastic density current (PDC) that was partly blocked by near-vent topography. The upper part of the current surmounted the barrier and deposited an ignimbrite veneer. During a widespread hiatus in flow, ash and various ash aggregates were deposited from a …
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Experimental study of reservoir turbidity currents venting
… flume to analyze the behavior of turbidity currents while using the pass-through sediment management technique of venting. The main focus was to explore and develop a better understanding of the streamwise flow velocity and suspended sediment concentration vertical profiles, and the …
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Granular retrosplenial cortex layer 2/3 generates high frequency oscillation events coupled with hippocampal sharp wave-ripples and Str. LM high gamma
… the precise laminar organization of synaptic currents supporting HFOs, whether the local gRSC circuitry can support HFOs without patterned input, and the precise coupling of hippocmapla oscillations to gRSC HFOs across brain states remains unknown. We aimed to answer these questions using in …