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.
Results
Showing 1 to 20 of 216 for “"Nitrous oxide"”.
-
The biogeochemistry of marine nitrous oxide
Atmospheric nitrous oxide N2O concentrations have been rising steadily for the past century as a result of human activities. In particular, human perturbation of the nitrogen cycle has increased the N2O production rates of the two major sources of this greenhouse gas, soil and the ocean. …
-
The biogeochemistry of marine nitrous oxide
Atmospheric nitrous oxide N₂O concentrations have been rising steadily for the past century as a result of human activities. In particular, human perturbation of the nitrogen cycle has increased the N₂O production rates of the two major sources of this greenhouse gas, soil and the ocean. …
-
Nitrous Oxide as Pain Relief for Women in Labor
Labor and childbirth can be a very frightening and anxious time in a woman’s life. Pain is considered a normal, natural and expected part of childbirth and for that reason, it is vitally important to provide women access to different approaches to pain management. Healthcare professionals must be …
-
Natural variability in eastern tropical Pacific nitrous oxide emissions
Nitrous oxide (N2O) is a powerful greenhouse gas and ozone depleting substance, but its natural sources remain poorly constrained. Marine emissions are likely much higher than IPCC estimates predict, due to unusually high emissions from the oxygen minimum zones (OMZs) in the eastern tropical …
-
Nitrous oxide as working fluid in enhanced geothermal systems (EGS)
La energía geotérmica es una fuente de energía renovable que se puede encontrar en abundancia en nuestro planeta. Solo una pequeña fracción de esta se convierte actualmente en energía eléctrica, aunque en los últimos años la capacidad geotérmica instalada ha aumentado considerablemente en todo el …
-
Field Emissions of Methane and Nitrous Oxide from California Landfills
… landfills to quantify emissions of methane and nitrous oxide. Landfills are highly engineered; however, they are one of the largest anthropogenic sources of greenhouse gases, causing human health and safety concerns. Methane (CH<sub>4</sub>) and nitrous oxide (N<sub>2</sub>O) are significant …
-
Paddock scale nitrous oxide emissions from intensively grazed pasture: Quantification and mitigation
… to global emissions of the potent greenhouse gas nitrous oxide (N₂O) to the atmosphere. Nitrous oxide can absorb and transform radiative energy emitted from the sun to earth into heat. The ability of N₂O to absorb energy is part of the greenhouse effect and naturally contributes to habitable …
-
Potent but forgotten: nitrous oxide contributions by an ascidian on warming reefs
… emissions of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) are driving global climate change and greatly impacting ecosystems. Although N2O has approximately 300 times the warming potential of carbon dioxide, mitigation strategies are lagging in comparison, …
-
On-farm nitrous oxide response to nitrogen fertilizer in corn cropping systems
Thesis (M.S.)--Michigan State University. Crop and Soil Science, 2009
-
Evolution of Nitrogen Compounds From Soybean (Acetaldehyde Oxime, Nitrous Oxide, N-15)
Soybean seedlings {Glycine max (L.) Merr. cv. Williams, 24 days after planting, grown on nutrient solution containing 15 mM NO(,3)('-)} evolved substantial amounts of N compounds in an open gas exchange system. Air exiting the shoot compartment was passed through a chemical trapping system. Traps …
-
Nitrous oxide emissions under different corn field managements in the United States
Nitrous oxide (N2O) is a potent greenhouse gas that also contributes to stratospheric ozone depletion. Intensive nitrogen fertilizer use has increased agricultural N2O emissions and motivated research efforts to identify field management techniques that best mitigate N2O emissions and reduce these …
-
Legacy Effects of Long-term Manure Applications on Soil-derived Nitrous Oxide Emissions
… regime to annual urea applications would affect nitrous oxide (N2O) emissions. My hypotheses were that long-term manure applications would produce a legacy (or priming) effect that would result in enhanced N2O emissions following the changeover to a more readily available nitrogen source and that …
-
Rayleigh Flow of Two-Phase Nitrous Oxide as a Hybrid Rocket Nozzle Coolant
… a lab-scale hybrid rocket motor for which nitrous oxide is utilized as the oxidizer in the combustion system. Because of its availability, the same two-phase (gas and liquid) nitrous oxide that is used in the combustion system is also routed around the throat of the hybrid rocket’s …
-
The reaction of aquoamine ruthenium (II) species with nitrous oxide and azide ion
ii, 181 leaves : ill. ; 25 cm.
-
Nitrous oxide from denitrification: Influence of field management, environmental conditions, and nutrient availability
… contributes significantly to emissions of nitrous oxide (N2O), a potent greenhouse gas and important ozone-depleting substance. To alleviate this environmental issue, there is a need to explore managements and conditions that minimize N2O emissions from agricultural systems. My work …
-
The influence of redox dynamics on nitrogen cycling and nitrous oxide emissions from soils
Soils are a dominant source of nitrous oxide (N2O), a potent greenhouse gas. The complexity of drivers of N2O production and emissions has hindered our ability to predict the magnitude and spatial dynamics of N2O fluxes. Soil moisture can be considered a key driver because it influences oxygen …
Page 1 of 11