Thesis (Ph.D.)--University of Nebraska-Lincoln, 2008. / Title from title screen (site viewed Apr. 9, 2009). PDF text: x, 189 p. : ill. (chiefly col.) ; 1 Mb. UMI publication number: AAT 3338828. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1984. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--Pennsylvania State University, 2008. / Thesis (M.S.)--Pennsylvania State University, 2008. Thesis advisor: James S. Shortle.

Direct liquid fuel cells represent an interesting alternative to conventional hydrogen fuel cell technology. A novel analytical method for the monitoring of direct liquid fuel cells is presented. Employing a combination of chronoamperometric, gravimetric and Raman spectroscopic measurements this method allows a straightforward determination of the Faradaic efficiency of a fuel cell. This method was applied in a proof of concept study analysing the operational behaviour of a direct methanol fuel cell. A very low Faradaic efficiency was found for the fuel cell under study. This was attributed to loss of methanol from the fuel mixture due to methanol crossover, stripping of methanol by carbon dioxide as well as evaporation. It is known from the literature that a fuel change from methanol towards higher alcohols and other hydrocarbons can help to mitigate the effects of these loss processes. However, the behaviour of such alternative fuels and their mixtures in an operating fuel cell and hence the performance of the fuel cell depends at least in part on the intermolecular interactions present in those fuel mixtures. Therefore, the intermolecular interactions in binary and ternary mixtures of potential candidates for alternative fuels were investigated in the main part of this thesis. Studies on the intermolecular interactions in binary mixtures of acetone with ethanol and 1-butanol showed a tendency for self association of both compounds albeit in different concentration ranges. It was further found that the alkyl chain length of the alcohols did not have a significant effect on the intermolecular interactions in the binary and ternary mixtures. Further, the behaviour of the ternary mixture was found to closely resemble the effects found in the individual binary mixtures. Finally, binary mixtures of dimethyl sulfoxide (DMSO) and different alcohols did not show self association. It was rather found that alcohol molecules inserted into chains of DMSO molecules eventually leading to the formation of alcohol-DMSO dimers.

Thesis (M.A.)--Ohio University, June, 2008. / Title from PDF t.p. Includes bibliographical references.

Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1990. / Vita. Abstract. Includes bibliographical references (leaves 148-153). Also available via the Internet.

Thesis (M.S.)--University of Tennessee, Knoxville, 2008. / Title from title page screen (viewed on Sept. 30, 2009). Thesis advisor: Dayton M. Lambert. Vita. Includes bibliographical references.

Doctorat en sciences sociales, politiques et économiques / info:eu-repo/semantics/nonPublished

In the Third World, the Oil Crisis has emphasized the vulnerability of certain large oil-importing countries, engaged in an extensive process of industrialization. The author asks whether Brazil's response to this new challenge will emerge from a tradition of direct State involvement in Energy (exemplified by PETROBRAS), or an original strategy based on the private sector. Both the personal commitment of General Geisel to enhance the national bourgeoisie, and the general context of the mid-Seventies, favour the latter. As the locally-owned sugar-producing oligopoly promotes an alcohol program to replace gasoline, the State is seeking a loose formula--an Alliance of the agro-energetic sector with the multinational automobile industry and PETROBRAS. Its success would be based on the performance of each actor. / Given a tradition of susceptibility of the Brazilian State to internal lobbying, and the choice in favour of indirect involvement in the program, it is not surprising that controls remained largely ineffective. Further structural limitations--an archaic agriculture resulting in low productivity of land, a lack of private funding, and technological deficiencies (caused by inadequate R & D activities)--induced the failure of the program in its original conception. However, the national bourgeoisie's fear of foreign control lead the military to veto the possible alternative of further internationalization of the alcohol sector. It remains to be seen, in the light of the weakening position of Brazil in the world economy, if such a stance can be maintained in the long term.

Thesis (M.S.)--Rochester Institute of Technology, 2009. / Typescript. Includes bibliographical references (leaves 74-78).