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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.
1

Some kinetic and thermodynamic aspects of molecular beam epitaxy

Devine, R. L. S. January 1985 (has links)
No description available.
2

Supercritical Processing of Electrically Conducting Polymers

Kurosawa, Shutaro 14 May 2004 (has links)
Thick composites (~ 3 mm in thickness) of polypyrrole with electrically insulating porous (polystyrene) and nonporous (polymethyl methacrylate) substrates were prepared using a two-step batch method. In the two-step method, impregnation of volatile (iodine) or nonvolatile (ferric chloride) oxidant in the substrate is followed by in-situ polymerization of pyrrole. Conductivities as high as 10-1 S/cm were obtained in this work in the case of composites of polypyrrole and porous, crosslinked polystyre. Use of the nonvolatile oxidant (ferric chloride) resulted in higher conducting polymer yield, as well as composites having a higher conductivity, thermal stability, and mechanical strength. However, the volatile oxidant (iodine) could be transported to the substrate using supercritical carbon dioxide as the solvent. As a result, partitioning of the oxidant between the solvent phase and the polymer substrate, and hence the distribution of the oxidant in the substrate, could be controlled by manipulation of the pressure. The two-step batch method in which supercritical carbon dioxide is used to facilitate transport and as a solvent for the oxidant was found to be an effective method for the production of thick composites with uniform conductivity, thermal stability, and mechanical strength. Such composites are desired in important practical applications such as rechargeable battery electrodes and electromagnetic interference shielding materials.
3

An evaluation of column thermal diffusion as a means of polymer characterization.

Taylor, David L. 01 January 1962 (has links)
No description available.
4

A cylindrical probe for determination of thermal constants in situ

Yarger, Douglas Neal, 1937- January 1962 (has links)
No description available.
5

The effect of a temperature gradient on concentration in solid alloys

Fanning, James Collier 08 1900 (has links)
No description available.
6

The improvement in separation of concentric tube thermal diffusion columns

Yeh, Ho-ming 05 1900 (has links)
No description available.
7

In situ apparent thermal conductivity measurement at depth in the unsaturated zone

Aberra, Gebre Brhan, January 1974 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references.
8

Continuous throughput rectification of organic liquid mixtures with vertical, countercurrent thermal diffusion columns

Longmire, David Robinson. January 1957 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1957. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 240-248).
9

Investigation of the utilization of thermal diffusion in separation processes

Brock, J. R. January 1960 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1960. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 226-231).
10

Thermal diffuse scattering of low energy electrons

McKinney, James Thomas, January 1966 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1966. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

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