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 667 for “"bubbles"”.
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Microscopic Growth of Electrolytic Bubbles
Made available in DSpace on 2014-12-08T23:18:08Z (GMT). No. of bitstreams: 1 6507106.pdf: 7433277 bytes, checksum: 7037c8651ff645d05f8592420711cf82 (MD5) Previous issue date: 1965
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Coalescence of bubbles and drops
… the moment of contact. Similarly, when a pair of bubbles touch, the surface topology changes and a singular flow begins. Since the stress from surface tension depends on the surface curvature, these singularities are often characterised by divergent fluid velocities. Experimental observation or …
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Presidential Security: Bodies, Bubbles, & Bunkers
… place, the Secret Service is able to construct bubbles and bunkers that are designed to protect and trap the president's two bodies.
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The Dynamics of Single and Double Cavitation Bubbles and Interaction Between Bubbles and Different Materials
… dynamics of one and two laser-induced cavitation bubbles collapsing near different boundaries is presented in this article by measuring the velocity fields using particle image velocimetry (PIV) techniques. Cases include a single bubble collapsing near the hard, medium, and soft walls …
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Bubbles matter: An assessment of the contribution of vapor bubbles to melt inclusion volatile budgets
… a vapor bubble that formed after trapping. Such bubbles may contain CO2 that was originally dissolved in the melt. In this study, we determined the contribution of CO2 in the vapor bubble to the overall CO2 content of MI based on quantitative Raman analysis of the vapor bubbles in MI from the …
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Biofilm Removal Using Bubbles and Sound
… that biofilms are removed by a stream of bubbles. Removal of biofilm is a function of stream velocity, gas fraction, and median bubble diameter, but not of impingement angle. The results of the acoustic experiments show that sound does not affect the removal of biofilm under the conditions …
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Heat Transfer From a Liquid to Gas Bubbles During Formation and Translation of the Bubbles Through the Liquid.
… amount of heat transfer does occur when gas bubbles form and translate through a relatively warm liquid. Therefore, a more detailed experiment was conducted to investigate this heat-transfer phenomenon.A heat exchanger was constructed which used warm tap water as the liquid and cool …
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Adaptive Bayesian sampling with application to 'bubbles'
The project consists in applying the Markov Random Fields (MRF) theory in order to make inference in spatial graphical models. We are interested in solving the problem of the use of information in certain categorization problems where facial image information is revealed by a certain number of …
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Essays on Bubbles in Asset Market Experiments
… transactions are found in the markets. The bubbles are found robustly in the market. Many studies have tried to explain and eliminate the bubbles in the experimental asset market. One of the most powerful ways to eliminate the bubble is for subjects to gain experience in repeated markets …
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Modeling and Simulation of Bubbles and Particles
… the new equation of motion was applied to air bubbles and sand particles of several different diameters. Particle-fluid interactions observed through flow-visualization, particle concentration, particle-wall interactions, and Lagrangian statistics were all considered. These results were …
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Investigation of Thermocapillary Flows Around Hemispherical Bubbles
… to cancel thermocapillarity for downward facing bubbles. Natural convection is the dominant mechanism for an upward facing bubble. Thermocapillary flows could be significant in situations where either moderate size stable bubbles at present or high heat fluxes are imposed at the wall.
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Collapse of Vapor Bubbles With Translatory Motion
Made available in DSpace on 2014-12-09T19:52:19Z (GMT). No. of bitstreams: 1 6607831.pdf: 3032302 bytes, checksum: 2daf722092c3fe366753bc7b1cebbf57 (MD5) Previous issue date: 1966
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The dynamics of bubbles in nucleate boiling
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1956
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Separation Bubbles and Vortex Formation in Cavity Flows
… of the formation of vortices and separation bubbles in a square cavity as well as in a cylindrical cavity. Whereas there has been previous research work on the problem of a free stream over different types of cavities, like open and closed cavities or lid driven cavities, this research on an …
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Three essays on bubbles in agricultural futures markets
… of this dissertation is to test and understand bubbles in agricultural futures markets. Building on current bubble literature, the dissertation applies a recent-developed forward and backward recursive bubble testing procedure that is capable of date-stamping the exact origination and …
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Demand bubbles and phantom orders in supply chains
Essay One The Impact of Shortages on Push-Pull Production Systems This paper explores the impact of endogenous customer demand on supply chain instability. It investigates how a semiconductor manufacturer's hybrid push-pull production system responds to customer demand, when inventory availability …
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Engineered surfaces for enhanced control of electrochemical bubbles
… the release of electrochemically generated bubbles from its surface. By systematically studying the effects of altering the microscale surface texture of an electrode, we are able to demonstrate the ability for the geometry of an electrode's surface to enhance the release of bubbles from the …
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Impact and Departure Dynamics of Droplets and Bubbles
Droplets and bubbles are important for understanding natural phenomena such as falling raindrops, airborne disease transmission, and plant respiration systems, and also for engineering contexts such as semiconductor fabrication, nuclear power plants, and electronics cooling. However, still, more …
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