Results 11 to 20 of about 122,495 (304)

Ozone production efficiency of a ship-plume: ITCT 2K2 case study

open access: yesChemosphere, 2016
Ozone production efficiency (OPE) of ship plume was first evaluated in this study, based on ship-plume photochemical/dynamic model simulations and the ship-plume composition data measured during the ITCT 2K2 (Intercontinental Transport and Chemical Transformation 2002) aircraft campaign.
Kim, Hyun S.   +4 more
openaire   +4 more sources

Effects of subgrid segregation on ozone production efficiency in a chemical model

open access: yesAtmospheric Environment, 2000
Ozone production efficiency is a parameter used for evaluating the effect of anthropogenic NOx on tropospheric ozone. For this work, zero-dimensional simulations were run to compare the differences in ozone production efficiency when air masses of different origin were separated and when they were merged.
Jinyou Liang, Mark Z. Jacobson
openaire   +3 more sources

Slower ozone production in Houston, Texas following emission reductions: evidence from Texas Air Quality Studies in 2000 and 2006 [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Airborne measurements from two Texas Air Quality Study (TexAQS) field campaigns have been used to investigate changes of ozone production in Houston, Texas, from 2000 to 2006, a period of major emission reduction measures for petrochemical and other ...
W. Zhou, D. S. Cohan, B. H. Henderson
doaj   +1 more source

Investigation of pulsed micro-discharges and ozone production by dielectric barrier discharges [PDF]

open access: yes, 2015
In this work, pulsed micro-discharges produced by dielectric barrier discharges (DBDs) with a sub-millimeter gap were electrically-characterized under ac voltage at 100 Hz and at 5 kHz.
Given, M. J.   +6 more
core   +1 more source

Effect of voltage waveform on dielectric barrier discharge ozone production efficiency [PDF]

open access: yesThe European Physical Journal Applied Physics, 2012
Dielectric barrier discharges (DBDs) are commonly used for gas effluent cleanup and ozone generation. For these applications, the energy efficiency of the discharge is a major concern. This paper reports on investigations carried out on the voltage shape applied to DBD reactor electrodes, aiming to evaluate a possible energy efficiency improvement for ...
Mericam-Bourdet, Nicolas   +4 more
openaire   +4 more sources

Electrochemical Ozone Generation on a Nanocomposite SnO2 Electrode

open access: yesInternational Journal of Electrochemical Science, 2016
A nanocomposite SnO2 electrode was prepared and its performance on electrochemical ozone synthesis was studied. The factors affecting ozone production and its current efficiency, such as current density, temperature, pH, supporting electrolyte and liquid
Yu-Hong Cui   +3 more
doaj   +1 more source

Impact of a new condensed toluene mechanism on air quality model predictions in the US [PDF]

open access: yesGeoscientific Model Development, 2011
A new condensed toluene mechanism is incorporated into the Community Multiscale Air Quality Modeling system. Model simulations are performed using the CB05 chemical mechanism containing the existing (base) and the new toluene mechanism for the western ...
G. Sarwar   +6 more
doaj   +1 more source

Ozone weekend effects in the Beijing–Tianjin–Hebei metropolitan area, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
The ozone weekend effect (OWE) was first investigated in the metropolitan area of Beijing–Tianjin–Hebei (BTH), China, using in situ measurements from the Atmospheric Environment Monitoring Network from July 2009 to August 2011.
Y. H. Wang   +11 more
doaj   +1 more source

Global tropospheric ozone trends, attributions, and radiative impacts in 1995–2017: an integrated analysis using aircraft (IAGOS) observations, ozonesonde, and multi-decadal chemical model simulations [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Quantification and attribution of long-term tropospheric ozone trends are critical for understanding the impact of human activity and climate change on atmospheric chemistry but are also challenged by the limited coverage of long-term ozone observations ...
H. Wang   +23 more
doaj   +1 more source

Bactericidal effect of corona discharges in atmospheric air [PDF]

open access: yes, 2012
The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative dc voltage with magnitude up to 26 kV ...
Anderson, John   +6 more
core   +1 more source

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