Zobrazeno 1 - 10
of 456
pro vyhledávání: '"G. Le Bras"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 5, Pp 2363-2382 (2014)
The formation, abundance and distribution of organic nitrates are relevant for determining the production efficiency and resident mixing ratios of tropospheric ozone (O3) on both regional and global scales. Here we investigate the effect of applying
Externí odkaz:
https://doaj.org/article/b3cf800ed0954a4a8c013b89ecd64e4a
Publikováno v:
Atmospheric Chemistry and Physics, Vol 8, Iss 14, Pp 4061-4068 (2008)
We have studied the impact of the recently observed reaction NO+HO2→HNO3 on atmospheric chemistry. A pressure and temperature-dependent parameterisation of this minor channel of the NO+HO2→NO2+OH reaction has been included in both a 2-D stratosph
Externí odkaz:
https://doaj.org/article/07a7eaf5d66d48cb88221c4677191444
Autor:
A. Sadezky, R. Winterhalter, B. Kanawati, A. Römpp, B. Spengler, A. Mellouki, G. Le Bras, P. Chaimbault, G. K. Moortgat
Publikováno v:
Atmospheric Chemistry and Physics, Vol 8, Iss 10, Pp 2667-2699 (2008)
An important fraction of secondary organic aerosol (SOA) formed by atmospheric oxidation of diverse volatile organic compounds (VOC) has recently been shown to consist of high-molecular weight oligomeric species. In our previous study (Sadezky et al.
Externí odkaz:
https://doaj.org/article/43382a3c7282483f89c582c69f1c134d
Autor:
A. Sadezky, P. Chaimbault, A. Mellouki, A. Römpp, R. Winterhalter, G. Le Bras, G. K. Moortgat
Publikováno v:
Atmospheric Chemistry and Physics, Vol 6, Iss 12, Pp 5009-5024 (2006)
Formation of secondary organic aerosol has been observed in the gas phase ozonolysis of a series of enol ethers, among them several alkyl vinyl ethers (AVE, ROCH=CH2), such as ethyl, propyl, n-butyl, iso-butyl, t-butyl vinyl ether, and ethyl propenyl
Externí odkaz:
https://doaj.org/article/a6130635ec9f419996b4027010ac2c8d
Akademický článek
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Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 1997, 101 (48), pp.9137-9141. ⟨10.1021/jp972369p⟩
Journal of Physical Chemistry A, American Chemical Society, 1997, 101 (48), pp.9137-9141. ⟨10.1021/jp972369p⟩
Absolute rate constants have been measured for the gas-phase reactions of hydroxyl radicals with a series of methyl esters: methyl propionate (k1), methyl butyrate (k2), methyl valerate (k3), and methyl caproate (k4). Experiments were carried out usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b564dc424ee09026d2871d587a6b3d97
https://pubmed.ncbi.nlm.nih.gov/32223123
https://pubmed.ncbi.nlm.nih.gov/32223123
Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 2015, 119 (19), pp.4408-4417. ⟨10.1021/jp509427x⟩
Journal of Physical Chemistry A, American Chemical Society, 2015, 119 (19), pp.4408-4417. ⟨10.1021/jp509427x⟩
International audience; The yield of 1- and 2-butyl nitrates in the gas-phase reactions of NO with n-C4H9O2 and sec-C4H9O2, obtained from the reaction of F atoms with n-butane in the presence of O2, was determined over the pressure range of 100–600
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::081adf2a13f1bc6cab828f6992821582
https://doi.org/10.1021/jp509427x
https://doi.org/10.1021/jp509427x
Autor:
N. I. Butkovskaya, A. Kukui, G. Le Bras, Martyn P. Chipperfield, Mathew J. Evans, Daniel Cariolle
Publikováno v:
Atmospheric Chemistry and Physics. 8:4061-4068
We have studied the impact of the recently observed reaction NO+HO2→HNO3 on atmospheric chemistry. A pressure and temperature-dependent parameterisation of this minor channel of the NO+HO2→NO2+OH reaction has been included in both a 2-D stratosph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52ab9a85b1912af95e16084194331c37
https://doi.org/10.5194/acp-8-4061-2008
https://doi.org/10.5194/acp-8-4061-2008
Autor:
Michael P. Richards, G. Le Bras-Goude, Henri Duday, Christine Couture-Veschambre, V. Formicola, Jean-Jacques Hublin, Didier Binder
Publikováno v:
Bulletins et mémoires de la société d'anthropologie de Paris. 18:43-53
Depuis environ dix millénaires, l’Homme a appris à gérer et produire ses propres ressources alimentaires. En Ligurie, l’exploitation du milieu marin proche et l’acquisition des techniques agropastorales au moment de la néolithisation (VIemi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51c4455b67be1e1a145f6711f9092109
https://doi.org/10.4000/bmsap.1312
https://doi.org/10.4000/bmsap.1312
Publikováno v:
Atmospheric Environment. 40:3764-3772
Absolute rate coefficients have been determined for the gas-phase reactions of hydroxyl radicals with methyl acrylate (k1), methyl methacrylate (k2) and ethyl acrylate (k3). Experiments were performed using two different techniques, the relative rate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f898d910ad99d747125e79d1d93989ab
https://doi.org/10.1016/j.atmosenv.2006.03.003
https://doi.org/10.1016/j.atmosenv.2006.03.003