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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

Fines migration and formation damage - microscale studies

Valdés, Julio R. 08 1900 (has links)
No description available.
112

Magnetically-seeded filtration of colloidal particles

Ying, Tung-Yu 12 1900 (has links)
No description available.
113

Identifying sources and source contributions of PM [subscript 2.5] in Atlanta Georgia / Identifying sources and source contributions of PM 2.5 in Atlanta Georgia

Lee, Hanlim 12 1900 (has links)
No description available.
114

Like-charge attraction of colloidal particles in confined space

Benesch, Thorben 08 1900 (has links)
No description available.
115

Aggregation of colloidal particles and breakup of aggregates : probing interparticle forces

Chin, Ching-Ju 12 1900 (has links)
No description available.
116

The B̊ W̊ differential cross section /

Brockman, Paul J. January 1978 (has links)
No description available.
117

Entrainment of particles from solid surfaces

Hall, J. January 1978 (has links)
No description available.
118

Hypothesis testing variables applied to trajectory fitting in the BaBar experiment

Jackson, Paul Douglas 10 November 2011 (has links)
Graduate
119

The microstructures of estuarine particles

Titley, John Graham January 1988 (has links)
No description available.
120

Mechanisms of particle migration in electrostatic precipitators

Barnes, Kathryn L. January 1987 (has links)
Electrostatic precipitators are high efficiency gas cleaning devices widely used in industry for removing particulates from process gases. A major factor affecting their performance is particle migration, which is governed by the complex interaction of electrical and hydrodynamic phenomena. A fuller understanding of these fundamental mechanisms is therefore essential to the development of realistic mathematical models. The work described in this thesis concentrates on the fluid-particle interactions in a wire-plate-system. A pilot-scale rig was built using actual components from an industrial precipitator, allowing realistic conditions to be simulated in the laboratory. Hot-wire anemometry and laser-Doppler photon correlation techniques were employed to study the time-averaged velocity field. Several designs of wall strengthener were considered, and in each case the effect on the surrounding flow field was investigated using helium bubble visualisation. The turbulent nature of the fluid was characterised by local dispersion coefficient values and fluctuating velocity components. Alumina test dust in the size range 1-10 pm was used in the precipitator under a variety of operating conditions, and a technique was established for extracting representative dust samples. The samples allowed simultaneous measurement of concentration and size distribution, from which concentration profile development and collection efficiency information was obtained. Two alternative numerical models of the precipitator were developed, both incorporating the results from the fluid flow field experimentation. The first approach was based on the finite difference solution of the convective-diffusion equation, using appropriate boundary conditions. In the second approach, the transport of dust down the precipitator duct was simulated by the step-wise progression of a series of vertical line-sources, whose motion was governed by electrical migration and lateral diffusive spread. The validity of the models was tested by comparison of the predicted concentration profiles with corresponding experimental results.

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