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 7 of 7 for “"C3F8"”.
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Bubble growth dynamics for C3F8 bubble chambers
… perturbation method is applied to superheated C3F8 to describe the acoustic background discrimination achieved by the PICO experiment. We reproduced the delay in water and confirmed its occurrence in C3F8. We hypothesized that the delay can be used for optical background discrimination. …
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Plasma modification of metal oxides and textiles: tailoring surface properties for improved gas sensor and protective clothing applications
… and resuspension. These studies employed C3F8 and H2O(v) plasmas to treat four common lab coat materials. XPS and water contact angle goniometry confirm that the C3F8 plasma treatment increases the hydrophobicity of the fabrics and the H2O(v) plasma increases the wettability of most …
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The PICO-2L program: Towards Background-Free Dark Matter Direct Detection Using Bubble Chambers
… a 2 litre bubble chamber filled with superheated C3F8 and over the next three years, conducted two separate WIMP-search experiments. The first run was conducted at 4 different energy thresholds ranging from 3.2 keV to 8.1 keV and a total of 12 candidate events were observed during a total exposure …
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Chemical studies of plasma etchants used in integrated circuit manufacture
… function of fluorocarbon source gas (CF4, C2F6, C3F8 and CHF3), process time, RF power and percentage hydrogen addition. Gas phase concentrations of F, H and CF2 were measured by optical emission spectroscopy, and the resultant polymer structure determined by X-ray photoelectron spectroscopy and …
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Long term trends of halogenated trace gases, hydrocarbons, alkyl nitrates and of the oxidative capacity of the atmosphere
… remained stable since the 1990s. Emissions of C3F8 have also decreased since the 1990s; those of C2F6 appear to be increasing though this disagrees with recent work of other groups. However the growth rate of the radiative forcing of the atmosphere from the PFCs reported herein has been …
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Understanding the molecular-level chemistry of H2O plasmas and the effects of surface modification and deposition on a selection of oxide substrates
… with all plasma systems studied (CF4, C2F6, C3F8), the zeolite structure was not damaged by the plasma, and the potential for altering the entire surface area of these porous materials exists. The final portion of this dissertation addresses aspects of work designed to understand the adhesion …
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The regulation of CD8+ T cells by nutrient availability
The aim of this project was to explore how nutrient availability control CD8+ T lymphocytes. The focus was the regulation and function of autophagy as CD8 T cells encounter amino acid deprived conditions. The study also examined the role of the AMP dependent kinase in CD8+ T cell responses to …