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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.
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Showing 1 to 7 of 7 (0.15 seconds)| 1 |
Energy transfer in gases and cryogenic liquidsWilson, Graham John January 1994 (has links)
No description available.
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Electronic to Vibrational Energy Transfer from Cl* (3 <sup>2</sup>P<sub>1/2</sub>) to N<sub>2</sub>O(ν<sub>1</sub>): Failure of a Simple Kinetic MechanismBrumfield, Brian 05 December 2005 (has links)
No description available.
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CARS Measurements of Vibrational Energy Transfer in Nanosecond Pulse Electric Discharges in Nitrogen, Air, and Their Mixtures with Carbon DioxideHung, Yi-chen, Hung 28 December 2016 (has links)
No description available.
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Theoretical and experimental studies of energy transfer dynamics in collisions of atomic and molecular species with model organic surfacesAlexander, William Andrew 06 May 2009 (has links)
A full understanding of chemical reaction dynamics at the gas/organic-surface interface requires knowledge of energy-transfer processes that happen during the initial gas/surface collision. We have examined the influence of mass and rovibrational motion on the energy-transfer dynamics of gas-phase species scattering from model organic surfaces using theory and experiment. Molecular-beam scattering techniques were used to investigate the rare gases, Ne, Ar, Kr, and Xe, and the diatomics, N<sub>2</sub> and CO, in collisions with CH<sub>3</sub>- and CF<sub>3</sub>-terminated self-assembled monolayer (SAM) surfaces. Complementary molecular-dynamics simulations were employed to gain an atomistic view of the collisions and elucidate mechanistic details not observable with our current experimental apparatus. We developed a systematic approach for obtaining highly accurate analytic intermolecular potential-energy surfaces, derived from high-quality ab initio data, for use in our classical-trajectory simulations. Results of rare gas scattering experiments and simulations indicate mass to be the determining factor in the energy-transfer dynamics, while other aspects of the potential-energy surface play only a minor role. Additionally, electronic-structure calculations were used to correlate features of the potential-energy surface with the energy-transfer behavior of atoms and small molecules scattering from polar and non-polar SAM surfaces. Collisions of diatomic molecules with SAMs are seen to be vibrationally adiabatic, however translational energy transfer to and from rotational modes of the gas species, while relatively weak, is readily apparent. Examination of the alignment and orientation of the final rotational angular momentum of the gas species reveals that the collisions induce a stereodynamic preference for the expected "cartwheel" motion, as well as a surprising propensity for "corkscrew" or "propeller" motion. The calculated stereodynamic trends suggest that the CH<sub>3</sub>-SAM is effectively more corrugated than the CF<sub>3</sub>-SAM. Finally, the feasibility for collisional-energy promoted, direct gas/organic-surface reactions was interrogated using the 1,3-dipolar azide-alkyne cycloaddition reaction. We found that geometrical constraints prevented the reaction from proceeding at the probed conditions. / Ph. D.
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Ultraschnelle, lichtinduzierte Primärprozesse im elektronisch angeregten Zustand des Grün Fluoreszierenden Proteins (GFP) / Ultrafast Elementary Events in the Excited State of Green Fluorescent Protein (GFP)Winkler, Kathrin 24 January 2003 (has links)
No description available.
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Femtosekunden Photolyse von Diiodmethan in überkritischen Fluiden: Konkurrenz zwischen Photodissoziation und Photoisomerisierung / Femtosecond Photolysis of Diiodomethane in Supercritical Fluids: Competition between Photodissociation and PhotoisomerisationGrimm, Christian 05 November 2003 (has links)
No description available.
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Photodissoziation von Polyhalogenmethanen in Fluiden: Kurzzeitdynamik und Mechanismen / Photodissociation of polyhalomethanes in fluids: Ultrafast dynamics and mechanismsWagener, Philipp 29 April 2008 (has links)
No description available.
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