搜索结果: 1-11 共查到“大气物理学 Radicals”相关记录11条 . 查询时间(0.151 秒)
Turbulent exchange and segregation of HOx radicals and volatile organic compounds above a deciduous forest
HOx radicals volatile organic compounds a deciduous forest
2010/8/16
The eddy covariance method was applied for the first time to estimate fluxes of OH and HO2 together with fluxes of isoprene, the sum of methyl vinyl ketone (MVK) and methacrolein (MACR) and the sum of...
Technical Note: Characterisation of a DUALER instrument for the airborne measurement of peroxy radicals during AMMA 2006
a DUALER instrument the airborne measurement peroxy radicals AMMA 2006
2010/8/12
A DUALER (dual-channel airborne peroxy radical chemical amplifier) instrument has been developed and optimised for the airborne measurement of the total sum of peroxy radicals during the AMMA (African...
The heterogeneous reaction of hydroxyl radicals with sub-micron squalane particles: a model system for understanding the oxidative aging of ambient aerosols
heterogeneous reaction hydroxyl radicals sub-micron squalane particles ambient aerosols
2009/6/2
The heterogeneous reaction of OH radicals with sub-micron squalane particles, in the presence of O2, is used as a model system to explore the fundamental chemical mechanisms that control the oxidative...
Radicals in the marine boundary layer during NEAQS 2004: a model study of day-time and night-time sources and sinks
marine boundary layer NEAQS Radicals
2009/5/15
This paper describes a modelling study of several HOx and NOx species (OH, HO2, organic peroxy radicals, NO3 and N2O5) in the marine boundary layer. A model based upon the Master Chemical Mechanism (M...
Kinetics of the gas-phase reactions of OH radicals with alkanes and cycloalkanes
Kinetics gas-phase reactions OH radicals alkanes cycloalkanes
2009/3/11
The available database concerning rate constants for gas-phase reactions of the hydroxyl (OH) radical with alkanes through early 2003 is presented over the entire temperature range for which measureme...
Measurements of photo-oxidation products from the reaction of a series of alkyl-benzenes with hydroxyl radicals during EXACT using comprehensive gas chromatography
photo-oxidation products alkyl-benzenes hydroxyl radicals EXACT comprehensive gas hromatography
2009/3/11
Photo-oxidation products from the reaction of a series of alkyl-benzenes, (benzene, toluene, p-xylene and 1,3,5-trimethyl-benzene) with hydroxyl radicals in the presence of NOx have been investigated ...
Validation of the calibration of a laser-induced fluorescence instrument for the measurement of OH radicals in the atmosphere
laser-induced fluorescence instrument OH radicals atmosphere
2009/2/24
An assessment of the accuracy of OH concentrations measured in a smog chamber by a calibrated laser-induced fluorescence (LIF) instrument has been made, in the course of 9 experiments performed to stu...
The role of transition metal ions on HOx radicals in clouds: a numerical evaluation of its impact on multiphase chemistry
transition metal ions HOx radicals clouds multiphase chemistry
2009/2/20
A new modelling study of the role of transition metal ions on cloud chemistry has been performed. Developments of the Model of Multiphase Cloud Chemistry (M2C2; Leriche et al., 2001) are described, in...
Concentrations of OH and HO2 radicals during NAMBLEX: measurements and steady state analysis
OH and HO2 radicals steady state analysis
2009/1/6
OH and HO2 concentrations were measured simultaneously at the Mace Head Atmospheric Research Station in the summer of 2002 during the NAMBLEX (North Atlantic Marine Boundary Layer EXperiment) field ca...
Heterogeneous oxidation of saturated organic aerosols by hydroxyl radicals: uptake kinetics, condensed-phase products, and particle size change
Heterogeneous oxidation saturated organic aerosols hydroxyl radicals uptake kinetics
2008/12/17
The kinetics and reaction mechanism for the heterogeneous oxidation of saturated organic aerosols by gas-phase OH radicals were investigated under NOx-free conditions. The reaction of 150 nm diameter ...
Direct detection of OH formation in the reactions of HO2 with CH3C(O)O2 and other substituted peroxy radicals
OH HO2 CH3C(O)O2 substituted peroxy radicals
2008/11/17
This work details the first direct observation of OH as a product from (R1): HO2+CH3C(O)O2→(products), which has generally been considered an atmospheric radical termination process. The technique of ...