Graduation date: 1968

The carbon is photoelectron spectrum of CO��� has been measured with very high photon energy resolution. The natural lifetime of the carbon is hole state has been determined from a series of spectra taken at photon energies of 308, 320, and 330 eV. The measured values of the lifetimes show a dependence on photon energy; this is attributed to failure of the theory of post-collision interaction to predict correctly the observed electron spectrum near threshold. The lifetime widths reported here are critically compared with those values from the literature that are based on other spectroscopic techniques. The oxygen 1s photoelectron spectrum for CO��� has been calculated using ab initio electronic structure theory, a localized hole simulated by the equivalent-cores approximation, and the harmonic oscillator approximation. There is good agreement between the calculated spectrum and a recently reported experimental spectrum. / Graduation date: 1999

Thesis (M.S.)--University of Delaware, 2006. / Principal faculty advisor: John S. Boyer, College of Marine and Earth Studies. Includes bibliographical references.

This thesis considers the effect of a large scale wind power introduction into an electricity system and the focus has been on the carbon dioxide emissions. Two different systems were studied, the Swedish and the Danish electricity system. When studying the Swedish electricity system different scenarios were created to see what might happen with the CO2 emissions with an introduction of a large amount of wind power. The model that was used is based on parameters such as regulating power, transmission capacity, export possibility, and the electricity generation mixes in the Nordic countries. Given that the transmission capacity is good enough, the conclusion is that the carbon dioxide emissions will be reduced with a large scale introduction of wind power. In the Danish electricity system wind power is already introduced to a large extent. The main purpose here was to investigate the development of the CO2 emissions and if it is possible to decide the actual change in carbon dioxide emissions due to the large scale introduction of wind power. The conclusions to this part are that the CO2 emissions per kWh produced electricity have decreased since the electricity generation mix has changed but the total amount of CO2 emissions fluctuates depending on weather, in a dry year less hydro power from Norway and Sweden can be used and more electricity from the fossil fuelled CHPs are generated. It has not been possible to determine the influence of the wind power on the CO2 emissions.

The performance of a Direct Methanol Fuel Cell has been experiment and analysis in this research. The performance of Direct Methanol Fuel Cell were tested by changing different parameter, such as methanol concentration, temperature, and the effect of carbon dioxide. This influence include transient and steady-state respond. Through the experiment and analysis, we hope we could understand the important factors which influence the performance of the DMFC. This experiment use Nafion® as membrane electrode assembly, and the ratio of flow channel area to total electrode area is 58%. The performance of the single cell was enhanced by increasing methanol concentration as the experiment result, no matter transient or steady-state respond. The best performance was obtained from 2M. The performance at transient or steady-state was also improved by increasing methanol/cell temperature. The product of the reaction, carbon dioxide, will cause more influence when cell work at higher current. In addition, there are few carbon dioxide which will appear as gaseous state.

Abstract: Dimeric dimethylAluminum complexes, [Me2Al(m-R)]2 (R= Me, NiPr2, NiBu2, NPh2, NHnBu, OMe) and Al(NiPr2)3 react with carbon dioxide, yielding a series of carbamato aluminum complexes: [Me2Al(m-OCMe3)]2 (1); [Me2Al(m-O2CNiPr2)]2 (2); [Me2Al(m-O2CNiBu2)]2 (3); [Me2Al(m-O2CNPh2)]2 (4); [Me2Al(m-O2CNHnBu)]2 (5); Al4Li2(m4-O)2(m-O2CNiPr2)10 (6). X-ray crystallographic determinations were performed on compounds (2), (3), (4) and (6). The general trends identitide in these structures suggest that depending upon the bonding energy of aluminum with bridge ligand and electron density on bridge ligand. One novel crystal structure (6), Al4Li2(m4-O)2(m-O2CNiPr2)10 , was found from the previous reaction in the presence of lithium chloride. These compounds were characterized with 1H, 13C NMR, IR spectroscopy, mass spectrometer, and elemental analyses.

Thesis (Ph. D.)--University of Washington, 2001. / Vita. Includes bibliographical references (leaves 137-143).

Thesis (Ph. D.)--University of Texas at Austin, 2003. / Vita. Includes bibliographical references. Available also from UMI Company.

Dissertation (Ph.D.)--Auburn University, 2009. / Abstract. Includes bibliographic references.

Thesis (Ph. D.)--University of California, San Diego, 2003. / Vita. Includes bibliographical references (leaves 104-112).