Zobrazeno 1 - 7
of 7
pro vyhledávání: '"John V. Ortega"'
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 91:190-198
Pyrolysis oils were produced from hardwood or softwood feedstocks in a vacuum batch reactor and trapped at 0 °C. The vacuum process was used to intentionally avoid the presence of entrained char particles. The hardwood feedstock was a pelletized mix
Chemical evolution of volatile organic compounds in the outflow of the Mexico City Metropolitan area
Autor:
Daniel D. Riemer, A. Baker, Alan Fried, Dirk Richter, Teresa Campos, Lawrence I. Kleinman, Donald R. Blake, John V. Ortega, Carsten Warneke, Jun Zheng, Alan J. Hills, Eric C. Apel, Barkley C. Sive, Stephen R. Springston, J. A. de Gouw, Paul B. Voss, W. Junkermann, D. Welsh-Bon, D. J. Knapp, James Walega, Petter Weibring, Jochen Rudolph, Rahul A. Zaveri, Frank Flocke, Thomas Karl, X. Tie, Julia Lee-Taylor, L. Mauldin, Louisa K. Emmons, Sasha Madronich, Renyi Zhang, Andrew J. Weinheimer
Publikováno v:
Atmospheric Chemistry and Physics. 10:2353-2375
The volatile organic compound (VOC) distribution in the Mexico City Metropolitan Area (MCMA) and its evolution as it is uplifted and transported out of the MCMA basin was studied during the 2006 MILAGRO/MIRAGE-Mex field campaign. The results show tha
Autor:
M. L. Alexander, Y. N. Lee, Stephen R. Springston, J. T. Jayne, L. J. Nunnermacker, Peter H. Daum, John V. Ortega, Lawrence I. Kleinman, Jian Wang, Rahul A. Zaveri, Manjula R. Canagaratna, John M. Hubbe, J. Weinstein-Lloyd, Gunar Senum
Publikováno v:
Atmospheric Chemistry and Physics. 9:4261-4278
As part of the MILAGRO field campaign, the DOE G-1 aircraft was used to make measurements over and downwind of Mexico City with the objective of determining growth characteristics of aerosols from a megacity urban source. This study focuses on number
Autor:
Gunar Senum, Jian Wang, J. Weinstein-Lloyd, Stephen R. Springston, John V. Ortega, Lawrence I. Kleinman, M. L. Alexander, John T. Jayne, Manjula R. Canagaratna, John M. Hubbe, L. J. Nunnermacker, Y. N. Lee, Peter H. Daum
Publikováno v:
Atmospheric Chemistry and Physics, Vol 8, Iss 6, Pp 1559-1575 (2008)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, European Geosciences Union, 2008, 8 (6), pp.1559-1575
Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2007, 7 (5), pp.14461-14509
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, European Geosciences Union, 2008, 8 (6), pp.1559-1575
Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2007, 7 (5), pp.14461-14509
The time evolution of aerosol concentration and chemical composition in a megacity urban plume was determined based on 8 flights of the DOE G-1 aircraft in and downwind of Mexico City during the March 2006 MILAGRO field campaign. A series of selectio
Autor:
Yong Yu, Dan Imre, Barbara D'Anna, John V. Ortega, M. Lizabeth Alexander, A. Zelenyuk, Barbara J. Finlayson-Pitts, Christopher W. Harmon, Michael J. Ezell, S. N. Johnson
Publikováno v:
Atmospheric environment
Atmospheric environment, Elsevier, 2008, 42 (20), pp.5044-5060. ⟨10.1016/j.atmosenv.2008.02.026⟩
Atmospheric environment, Elsevier, 2008, 42 (20), pp.5044-5060. ⟨10.1016/j.atmosenv.2008.02.026⟩
The photooxidation of ~1 ppm alpha-pinene in the presence of increasing concentrations of NO2 was studied in a Teflon chamber at relative humidities from 70 - 88% and temperatures from 296 - 304 K. The loss of alpha-pinene and formation of gas phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe1648a49a4a683764da03ec6132532b
https://hal.archives-ouvertes.fr/hal-00474642
https://hal.archives-ouvertes.fr/hal-00474642
Autor:
Joel A. Thornton, Xiao-Ying Yu, John V. Ortega, Alla Zelenyuk, Chen Song, M. Lizabeth Alexander, Rahul A. Zaveri, David A. Maughan, Alexander Laskin, Sasha Madronich
Publikováno v:
Geophysical Research Letters. 34
[1] Semi-empirical secondary organic aerosol (SOA) models typically assume a well-mixed organic aerosol phase even in the presence of hydrophobic primary organic aerosols (POA). This assumption significantly enhances the modeled SOA yields as additio
Autor:
John V. Ortega, Dan Imre, Barbara J. Finlayson-Pitts, M. Lizabeth Alexander, Douglas J. Tobias, A. Zelenyuk, S. N. Johnson, Michael J. Ezell, Jennie L. Thomas, Karun Gogna, Christopher W. Harmon, Yong Yu, Barbara D'Anna
Publikováno v:
Physical Chemistry Chemical Physics. 10:3063
The photooxidation of 0.6-0.9 ppm alpha-pinene in the presence of a deliquesced thin film of NaNO(3), and for comparison increasing concentrations of NO(2), was studied in a 100 L Teflon(R) chamber at relative humidities from 72-88% and temperatures