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 20 of 1369 for “"methane"”.
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Missing methane: Machine learning for satellite remote sensing of methane
… of greenhouse gases like carbon dioxide and methane has warmed our planet dramatically above pre-industrial levels. Rising global temperatures lead to increasingly frequent severe weather patterns and habitat destruction, and so we now find ourselves faced with the daunting task of stemming …
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Methane hydrate growth kinetics
Includes bibliographical references (pages 114-118).
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Biochemical Methane Potential and Methane Oxidation Potential of Excavated Waste Residue from Calgary Biocell
… value of Biocell technology. Biochemical methane potential (BMP) and methane oxidation potential (MOP) of the EWR were evaluated to find the carbon offset of the Calgary Biocell project and potential application of EWR in future landfill biocovers. The EWR samples were collected from …
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The marine geochemistry of methane
… coastal surface waters near Walvis Bay, methane is present in concentrations considerably above those which would be predicted from solubility equilibrium with the atmosphere. A one dimensional diffusive model and a one dimensional horizontal advection diffusion model were used to …
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The geochemistry of methane isotopologues
… documents the origin, distribution, and fate of methane and several of its isotopic forms on Earth. Using observational, experimental, and theoretical approaches, I illustrate how the relative abundances of 12CH4, 13CH4, 12CH3D, and 13CH3D record the formation, transport, and breakdown of methane …
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The marine geochemistry of methane.
Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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The geochemistry of methane isotopologues
… documents the origin, distribution, and fate of methane and several of its isotopic forms on Earth. Using observational, experimental, and theoretical approaches, I illustrate how the relative abundances of ¹²CH₄, ¹³CH₄, ¹²CH₃D, and ¹³CH₃D record the formation, transport, and breakdown of methane …
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Methane in deep sea hydrothermal plumes. Development of a new in-situ methane sensing technology
… the concentration and distribution of dissolved methane (CH4), together with other geochemical tracers, in real time is of great value in detecting, monitoring, and understanding the functioning of hydrothermal plumes. Water column anomalies of light transmission, dissolved CH4, manganese (Mn), …
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The Methane Range: Coalbed Methane Development, Sage-Grouse protection, and The Ranching Way of Life
Coalbed methane development has proliferated across much of the western United States. Campbell County, Wyoming, in the Powder River Basin is one area that has seem some of the highest amounts of this development, most of it occurring on land where the surface use is livestock grazing, resulting in …
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The Methane Range: Coalbed Methane Development, Sage-Grouse protection, and The Ranching Way of Life
Coalbed methane development has proliferated across much of the western United States. Campbell County, Wyoming, in the Powder River Basin is one area that has seem some of the highest amounts of this development, most of it occurring on land where the surface use is livestock grazing, resulting in …
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Formation and characterization of pure methane hydrates and methane hydrates in unconsolidated and consolidated sediments
Includes bibliographical references.
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Diversity of methane and short chain hydrocarbon degrading bacteria with an emphasis on methane biofilter systems
Methanotrophs house enzymes capable of methane oxidation, act as a sink for atmospheric methane and play a key role in the global carbon cycle. This study conducted multiple studies on methanotrophs, including: examination of the evolutionary history of copper membrane monooxygenases (CuMMOs), …
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Phase equilibrium study of methane hydrate
… to form at low temperatures. In this study, methane gas hydrates were formed in a Berea sandstone core, which was saturated with brine and then pressurized with methane gas. The formation temperatures were 34°F, 36°F and 40°F and the initial pressures were in the range of …
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Electrical impedance of methane flat flame
… of the complex electrical impedance of a Methane Flat Flame Burner. The data shows a relationship between the magnitude of the impedance and temperature, which relates directly to the fuel/air mixture. This work was supported in part by the National Energy Technology Laboratory (NETL).
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Coal bed methane reservoir simulation studies
… simulation studies for a specific coal bed methane reservoir. First, the theory and reservoir engineering aspects of coal bed methane reservoirs, such as dual porosity concept, permeability characteristics of CBM reservoirs and mechanism of gas storage and gas transportation in CBM reservoir …
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Direct oxidation of methane to methanol
Methane is an abundant earth resource important for the energy sector. The development of better catalysts for the complete combustion of methane and the discovery of new catalysts that can directly oxidise methane to methanol are of great scientific importance. The total oxidation of methane to …
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Methane partial oxidation over phthalocyanine catalyst
The partial oxidation reaction of methane over a zeolite-supported ruthenium phthalocyanine catalyst is studied in a packed bed reactor. The investigation of such reaction is desirable because partial oxidation of methane yields a synthesis gas that can be upgraded to liquid chemicals and fuels. …
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Investigation of Methane Emissions and Sources
Methane (CH4) is an important trace gas and the most potent greenhouse gas in the global atmosphere. This study addressed CH4 related issues using a multi-pronged approach to monitor, characterize, and quantify CH4 emissions and sources through three observational platforms including Remote Methane …
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Partitioning Biological and Anthropogenic Methane Sources
<p>Methane is an important greenhouse gas, and an ideal target for greenhouse gas emissions reductions. Unlike carbon dioxide, methane has a relatively short atmospheric lifetime, so reductions in methane emissions could have large and immediate impacts on anthropogenic radiative forcing. A more …
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