Results 161 to 170 of about 3,175 (213)

Electrical breakdown of N2O, SF6 and N2O/SF6 mixtures

Proceedings of the Institution of Electrical Engineers, 1974
Measurements of static breakdown voltages were made for SF6 and N2O/SF6 mixtures containing between 1% and 50% SF6 by volume for values of Nds within the range 1023 < Nds < 1024 m−2 (where N is the gas number density and ds the sparking distance). These results, together with earlier data on N2O, show that the departures from Paschen's law become ...
J. Dutton, F.M. Harris, D.B. Hughes
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Differential response of N2O emissions, N2O-producing and N2O-reducing bacteria to varying tetracycline doses in fertilized soil

Environmental Research, 2022
Tetracyclines are the most widely used antibiotics worldwide. Their presence in soils could affect nutrient cycling, but our knowledge regarding how they affect soil microbial communities involved in greenhouse gas emissions is limited. The objective of the current study was to evaluate how tetracycline is affecting N2O emissions and the abundance of ...
Omirou, Michalis, Stephanou, Coralea, Anastopoulos, Ioannis, Philippot, Laurent, Ioannides, Ioannis   +4 more
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Reinvestigation of the experimental N2O+N2O cluster binding energy

Chemical Physics Letters, 1991
Abstract The gas-phase ion-molecule equilibrium reaction N2O++N2O + M⇄N2O+N2O + M was studied as a function of temperature. The enthalpy and entropy of reaction, detemined from the van't Hoff plot, are: ΔH0=−18.5±0.8 kcal/mol and ΔS0=−25±1.6 cal/mol K.
Deng Ying, Scott Ekern, Andreas Illies
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N2O (protoxyde d’azote)

Environnement, 2007
La pollution et les émissions polluantes sont au centre des préoccupations quand on parle de risque environnemental. A l'heure des bouleversements climatiques potentiels, les émissions anthropiques de gaz à effet de serre sont aujourd'hui un enjeu pour nos sociétés développées.
openaire   +2 more sources

Effects of dam building on N2O-producing and N2O-reducing community structures in river sediments and the associated N2O emission potential

Science of The Total Environment, 2023
Dam construction is regarded as the greatest anthropogenic disturbance in aquatic ecosystems, and it promotes denitrification, through which large N2O emissions occur. However, the effect of dams on N2O producers and other N2O-reducing microorganisms (especially for nosZ II), and the associated denitrification rates remain poorly understood. This study
Yuantao, Wang, Shenghua, Zhang, Huixia, Jin, Jiwei, Chen, Ketao, Zhou, Jinxi, Chen   +5 more
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Infrared spectra of the Ne2–N2O, Ar2–N2O trimers

Journal of Molecular Spectroscopy, 2012
Abstract Spectra of the van der Waals trimers Ar2–N2O and Ne2–N2O are studied in the region of the N2O ν1 fundamental (≈2220 cm−1) using a tunable quantum cascade laser to probe a pulsed supersonic expansion from a slit jet nozzle. Improved data are obtained for the dimers Ar–N2O and Ne–N2O, and the Q-branch of Ar3–N2O is tentatively assigned.
Rezaei, M., Michaelian, K. H., Mckellar, A. R. W., Moazzen-Ahmadi, N.   +3 more
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N2O revalorization

Nature Chemistry, 2022
Jun-Jie Chen, Huan-Ming Huang
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Vibrational Relaxation in N2O - H2O and N2O - D2O Mixtures

The Journal of the Acoustical Society of America, 1956
Ultrasonic absorption measurements were made to compare the relative effectiveness of H2O and D2O molecules in influencing thermal vibrational relaxation in N2O molecules. The displacement rates of the absorption per wavelength maxima induced by H2O and D2O were compared in N2O - H2O and N2O - D2O mixtures.
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NO, NO2 and N2O

2002
The soil of forest ecosystems can function as both, a source and a sink for atmospheric N2O, NO, and even NO2 (e.g. Butterbach-Bahl et al. 1998; Papen and Butterbach-Bahl 1999; Gasche and Papen 1999). The fluxes of NO and N2O observed at the soil/atmosphere interface are the result of simultaneous dynamic production and consumption processes taking ...
Rainer Gasche, Hans Papen
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Formation of N2O− via Ion–Molecule Reactions in N2O

The Journal of Chemical Physics, 1969
The production of O−, NO− and N2O− by electron impact on N2O has been studied as a function of pressure in the range 10−6 to 5 × 10−3 torr, using a quadrupole mass filter. The respective linear, quadratic, and cubic pressure dependences observed for these ions and their relative signals are consistent with the following reaction sequence and cross ...
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