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Showing 1 to 20 of 164 for “"N2O"”.
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Mid infrared investigation of vinyl fluoride-N2O and 1,1-difluoroethylene-N2O weakly bound dimers
… Vinyl fluoride, 1,1-difluoroethylene and N2O are industrially important molecules. Anthropogenic emission makes these gases adequately abundant in atmosphere. Therefore, recognizing their complexation properties are vital to industrial and atmospheric chemistry. By studying the infrared …
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Modeling of N2O emission from unmanaged terrestrial ecosystem soils
Nitrous oxide (N2O) is not only an important greenhouse gas, but also impacts stratospheric ozone. Soils under natural vegetation and agriculture are the major sources of N2O through nitrification and denitrification processes. Current estimates of N2O emissions on regional to global scales are …
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Mid Infrared Investigation of Two Isomers of the CO-N2O van der Waals Complex
… and in the nu3 asymmetric stretch region of N2O (~2223 cm−1) are assigned to the previously unobserved O-bonded form of the CO-N2O dimer (“isomer 2”). This van der Waals complex has a planar skewed T-shaped structure like that of the previously observed C-bonded form (“isomer 1”), but with …
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Impacts of enhanced efficiency nitrogen fertilizers on yield-scaled N2O emissions in Illinois maize
Nitrous oxide (N2O) is a potent greenhouse gas (GHG) with about 300 times the global warming potential of CO2 and significant levels of this GHG come from agriculture. A two-year field experiment was conducted to assess the ability of enhanced efficiency nitrogen fertilizers (EENFs) to minimize …
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Catalytic Reduction of NO and N2O with Hydrogen in Water by Polymer-Protected Palladium Nanoparticles
Nitric oxide (NO) and nitrous oxide (N2O) are important components of the global nitrogen cycle. They are intermediates or end products for natural bacterial processes such as nitrification and denitrification, and are formed in increasing amounts from anthropogenic sources such as increased …
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Verbesserte Schätzungen von CO2- und N2O-Flussraten von Böden mitteleuropäischer Ökosysteme - Entwicklung konzeptioneller Neuerungen von Bodenemissionsmodellen
… und 08.06.-14.06.2003) simultane Messungen der N2O- und CO2-Emissionen aus Wiesen-, Acker- und Waldböden durchgeführt. Die Emissionsdaten wurden mit einem photoakustischen Infrarot-Monitor in geschlossenen Kammern erhoben. Die entwickelte automatische Steuereinrichtung erlaubte es 5 Kammern …
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Dynamics and underlying processes of N2O and NO soil-atmosphere exchange under extreme meteorological boundary conditions
… trace gases. Regarding the nitrogen cycle, N2O and NO emissions are of concern, since they are involved in climate warming and soils represent a main source for these two gases. In spite of a growing number of studies on this subject, knowledge on effects of climate change on soil N2O and NO …
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Design and Analysis of a Reusable N2O-Cooled Aerospike Nozzle for Labscale Hybrid Rocket Motor Testing
<p>A reusable oxidizer-cooled annular aerospike nozzle was designed for testing on a labscale PMMA-N<sub>2</sub>0<a href="http://digitalcommons.calpoly.edu/cgi/ir_submit.cgi#_ftn1">[1]</a> hybrid rocket motor at Cal Poly-SLO.<a …
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A study of N2O molecular hyperfine structure in excited vibrational states utilizing a stabilized twin laser spectrometer.
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1979.
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Turning Ligands on Their Side: Computational Investigation into the Binding of N2O and N2 in Transition Metal Complexes
<p>Common greenhouse gas nitrous oxide (N<sub>2</sub>O) is a thermodynamically potent and environmentally benign oxidant, making it a desirable target for metal center activation. Unfortunately, N<sub>2</sub>O is a poor ligand for transition metals due to its weak sigma-donating and pi-accepting …
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Mikrobieller Metabolismus von 2,4-Dichlorphenol in der Drilosphäre und Einfluss auf die N2O-Bildung : Verknüpfung von Prozessen mit Populationen
… sind in der Lage, in situ das Treibhausgas N2O zu emittieren. Schadstoffe, in Form von Pestiziden und deren Abbauprodukte, beeinflussen N2O-bildende Prozesse wie die Denitrifikation in Böden. Ziel dieser Arbeit war es, in der Drilosphäre und dem umliegenden Boden (a) den mikrobiellen Prozess …
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Comparisons of N2O and CH4 fluxes as affected by land use systems and climate in small catchments in Korea
… of greenhouse gases like Nitrous oxide (N2O) and Methane (CH4) are of global concern, too, because they are involved in global warming and therewith: climate change. Major sources of N2O are agriculturally managed soils, and very important sources of CH4 are rice paddies. Thus, it is of …
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Mise en place d’un système de mesure par covariance de turbulence des flux de N2O sur une parcelle agricole
Nitrous oxide (N2O) is a greenhouse gas responsible for 8% of anthropogenic radiative forcing. It is also a major contributor to stratospheric ozone depletion. Agricultural soils represent its main source. N2O is produced by microorganisms through nitrification and denitrification processes. Both …
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Meta-analysis of how management practices and environmental factors affect biomass production and N2O emissions in miscanthus ×giganteus systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Nitrous oxide from denitrification: Influence of field management, environmental conditions, and nutrient availability
… 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 combined field, lab, …
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Potent but forgotten: nitrous oxide contributions by an ascidian on warming reefs
… 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, and our understanding of natural production …
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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. …
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