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 “"halocarbon"”.
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Halocarbon Reactions on the Chromium (III) Oxide (101̲2) Surface
A nearly stoichiometric, (1×1) Cr₂O₃ (101̲2) surface was prepared from a single crystal of α-Cr₂O₃. The five-coordinate cations exposed at the stoichiometric surface dissociatively adsorb molecular oxygen to form a (1×1), terminating chromyl (Cr=O) layer that is stable to >1100 K. TDS and AES were …
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Emission of biogenic halocarbons in temperate and tropical coastal zones
Biogenically-produced halocarbons play an important role in regional and global biogeochemical processes. These compounds are short-lived (lifetimes <6 months) and so have temporal and spatial variability in their atmospheric distributions. Marine regions, in particular coastlines, have been …
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The effects of elevated CO2 and ocean acidification on the production of marine biogenic trace gases
… changes in volatile dimethylsulphide (DMS) and halocarbon concentrations, through 70,000 litre, high pCO2 mesocosm experiments and laboratory culture studies. DMS is a climatically important trace gas produced by marine algae: it transfers sulphur into the atmosphere and is a major influence on …
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An Investigation of the Distribution of Ozone-depleting Substances in the Upper Troposphere and Lower Stratosphere
… and a specified tracer was employed for each halocarbon species, with hemispherically-defined surface measurements used as the boundary condition. This modified halocarbon experiment is known as CMAM30HR. A comprehensive sampling technique along the line-of-sight of the ACE-FTS measurements …
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Iodine in sea ice and the polar atmosphere.
… the Arctic environment. High concentrations of halocarbons were measured in the brine of sea ice, with respect to the water below, in the Arctic Ocean. High atmospheric halocarbon mixing ratios and flux calculations have demonstrated the effect on the atmosphere above. In the Canadian …
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Sealing of partially evacuated solar solar collectors
… to do this study is presented It was found that Halocarbon 11 would be a suitable gas to inflow into the collectors, having a thermal conductivity of 8• 07X1- 0j-3 .W M-l K--1•.<br/><br/>Theoretical equations for binary, and multi-component gas mixtures are shown compared with our experimental …
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Preparative Scale Separation of Organic Mixtures by Semi-Continuous Gas-Liquid Chromatography
… Initially, the separation of the equivolume halocarbon mixture of “Arklone" P/"Genklene" P was attempted and purities greater than 99.8% have been achieved for both products, at feed rates of 21 cm3h-1 and operating at about 60°C. In addition, the more difficult separation of a 50/50 V/V …
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The development of automatic fire protection methods for computing and telecommunications areas
… an automatic fire suppression system. The main halocarbon and inert replacement extinguishing agents are therefore critically compared and contrasted for their suitability in protecting these facilities. A complete review of these extinguishing agents was conducted which focused on suppression …