Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Ionization mechanisms"”.
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Selected topics in fast atom bombardment (FAB) mass spectrometry a)specially designed probe tips and ion generation, b)structures of vitamin B6 schiff base complexes
… two sections. Section one is a study . of the ionization mechanisms and the ion source optimization for Fast Atom Bombardment (FAB) ionization. For this study, several specially designed probe tips were created and tested under various experimental conditions. The aIm of this section is to …
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Ionization in diesel combustion: Mechanism, new instrumentation and engine applications
… combustion sensing in gasoline engines for which ionization mechanisms have been developed. This is not the case in diesel engines.</p> <p>In this dissertation, a new mechanism for ionization in diesel engines has been developed and experimentally validated. Moreover, a three dimensional model has …
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Investigation of Primary Ion Formation Mechanisms in UV-MALDI-MS Using Excited State Dynamics of Common MALDI Matrices
… is to provide insight towards primary ionization mechanisms within MALDI mass spectrometry. Albeit MALDI-MS is an extensively used analytical technique, the mechanism in which primary ions are created is still under scrutiny. Two current models of primary ionization exist which claim to …
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Modeling Ganymede's Interaction with the Jovian Magnetosphere: Ionospheric Outflow and the Juno PJ34 Flyby
… the inclusion of additional particle species and ionization mechanisms, we examine the density and flow patterns of pick-up ions with small (H2+), intermediate (H2O+), and large (O2+) masses in Ganymede’s interaction region. The results are validated by comparing the modeled magnetic field and ion …
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Exotic Species of Hydrogen
… allows semiclassical interpretations of complex ionization mechanisms in strong laser-fields due to its conformity with the Feynman path integral formalism. We employ a new kind of photoelectron imaging that maps continuous wavefunctions generated from a fast atomic beam in the focal area of an …
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Laser Electrospray Mass Spectrometry: Mechanistic Insights and Classification of Inorganic-Based Explosives and Tissue Phenotypes Using Multivariate Statistics
… of the vaporization and electrospray post-ionization mechanisms when using femtosecond laser pulses for desorption of surface molecules and electrospray ionization for capture and mass analysis of the gas phase ions. The internal energy deposition from nonresonant vaporization with …
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Linear magnetron high deposition rate magnet pack for high power impulse magnetron sputtering
… ion flux toward the substrate [1]. The increased ionization flux incident on the substrate increasing the coating or film density and quality [2]. HiPIMS has deposition rates have been cited as low as 25% of DCMS deposition rates for relevant target materials [3]. The reasons for the low …
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Elucidating the mechanisms behind pre-breakdown phenomena in transformer oil systems
… in an attempt to understand the underlying mechanisms that precede electrical breakdown in order to prevent them. This thesis develops a set of mathematical models which contain the physics to elucidate the pre-breakdown phenomena in transformer oil and other oil-based systems. The models …