Zobrazeno 1 - 10
of 368
pro vyhledávání: '"T. Berndt"'
Autor:
J. Weber, S. Archer-Nicholls, P. Griffiths, T. Berndt, M. Jenkin, H. Gordon, C. Knote, A. T. Archibald
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 10889-10910 (2020)
We present here results from a new mechanism, CRI-HOM, which we have developed to simulate the formation of highly oxygenated organic molecules (HOMs) from the gas-phase oxidation of α-pinene, one of the most widely emitted biogenic volatile organic
Externí odkaz:
https://doaj.org/article/20f17f7d59984e7dbdee998fcffe04b9
Autor:
O. Garmash, M. P. Rissanen, I. Pullinen, S. Schmitt, O. Kausiala, R. Tillmann, D. Zhao, C. Percival, T. J. Bannan, M. Priestley, Å. M. Hallquist, E. Kleist, A. Kiendler-Scharr, M. Hallquist, T. Berndt, G. McFiggans, J. Wildt, T. F. Mentel, M. Ehn
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 515-537 (2020)
Recent studies have recognised highly oxygenated organic molecules (HOMs) in the atmosphere as important in the formation of secondary organic aerosol (SOA). A large number of studies have focused on HOM formation from oxidation of biogenically emitt
Externí odkaz:
https://doaj.org/article/c50347b7b8ed4a60b38dc3a92faf82d1
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 13187-13211 (2017)
This paper describes the implementation of a kinetic gas-particle partitioning approach used for the simulation of secondary organic aerosol (SOA) formation within the SPectral Aerosol Cloud Chemistry Interaction Model (SPACCIM). The kinetic parti
Externí odkaz:
https://doaj.org/article/b4612702814941f480cc39fccd769237
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 9831-9845 (2016)
The gas-phase mechanism of the formation of highly oxidized multifunctional organic compounds (HOMs) from the ozonolysis of β-caryophyllene was investigated in a free-jet flow system at atmospheric pressure and a temperature of 295 ± 2 K. Reacti
Externí odkaz:
https://doaj.org/article/55ca40abdd2147678406fcd62081c933
Autor:
M. Sipilä, T. Jokinen, T. Berndt, S. Richters, R. Makkonen, N. M. Donahue, R. L. Mauldin III, T. Kurtén, P. Paasonen, N. Sarnela, M. Ehn, H. Junninen, M. P. Rissanen, J. Thornton, F. Stratmann, H. Herrmann, D. R. Worsnop, M. Kulmala, V.-M. Kerminen, T. Petäjä
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 22, Pp 12143-12153 (2014)
Oxidation processes in Earth's atmosphere are tightly connected to many environmental and human health issues and are essential drivers for biogeochemistry. Until the recent discovery of the atmospheric relevance of the reaction of stabilized Criegee
Externí odkaz:
https://doaj.org/article/41374662eec14f4a87676991ee44ea39
Autor:
T. Berndt, M. Sipilä, F. Stratmann, T. Petäjä, J. Vanhanen, J. Mikkilä, J. Patokoski, R. Taipale, R. L. Mauldin III, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 2, Pp 751-764 (2014)
Atmospheric H2SO4 / H2O nucleation influencing effects have been studied in the flow tube IfT-LFT (Institute for Tropospheric Research – Laminar Flow Tube) at 293 ± 0.5 K and a pressure of 1 bar using synthetic air as the carrier gas. The presence
Externí odkaz:
https://doaj.org/article/65c512b8338743cfad455f27f3219b7d
Autor:
V.-M. Kerminen, T. Petäjä, H. E. Manninen, P. Paasonen, T. Nieminen, M. Sipilä, H. Junninen, M. Ehn, S. Gagné, L. Laakso, I. Riipinen, H. Vehkamäki, T. Kurten, I. K. Ortega, M. Dal Maso, D. Brus, A. Hyvärinen, H. Lihavainen, J. Leppä, K. E. J. Lehtinen, A. Mirme, S. Mirme, U. Hõrrak, T. Berndt, F. Stratmann, W. Birmili, A. Wiedensohler, A. Metzger, J. Dommen, U. Baltensperger, A. Kiendler-Scharr, T. F. Mentel, J. Wildt, P. M. Winkler, P. E. Wagner, A. Petzold, A. Minikin, C. Plass-Dülmer, U. Pöschl, A. Laaksonen, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 22, Pp 10829-10848 (2010)
Within the project EUCAARI (European Integrated project on Aerosol Cloud Climate and Air Quality interactions), atmospheric nucleation was studied by (i) developing and testing new air ion and cluster spectrometers, (ii) conducting homogeneous nuclea
Externí odkaz:
https://doaj.org/article/29a04498086749b3a8d1bdea283a19ee
Autor:
J. Curtius, G. Spindler, R. Lee Mauldin III, A. Grüner, J. Mikkilä, T. Petäjä, J. Vanhanen, M. Sipilä, F. Stratmann, T. Berndt, M. Kulmala, J. Heintzenberg
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 15, Pp 7101-7116 (2010)
Nucleation experiments starting from the reaction of OH radicals with SO2 have been performed in the IfT-LFT flow tube under atmospheric conditions at 293±0.5 K for a relative humidity of 13–61%. The presence of different additives (H2, CO, 1,3,5-
Externí odkaz:
https://doaj.org/article/2149a53c134e43a2a66f61f480efba29
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 10, Pp 3357-3369 (2009)
Recent experimental findings indicate that HSO5 radicals may play a key role in the nucleation of atmospheric SO2 oxidation products. HSO5 radicals are metastable intermediates formed in the SO2 oxidation process, and their stability and lifetime are
Externí odkaz:
https://doaj.org/article/e07dada35d3e4157b47b0eb8e0f5f223
Autor:
Y. Viisanen, C. D. O'Dowd, B. Umann, K. Sellegri, J. Ücker, M. Hanke, F. Arnold, R. Janson, I. Riipinen, S.-L. Sihto, T. Petäjä, P. Aalto, M. Dal Maso, K. E. J. Lehtinen, A. Ruuskanen, S. Mikkonen, F. Stratmann, M. Kulmala, T. Berndt, A. Laaksonen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 8, Iss 23, Pp 7255-7264 (2008)
Atmospheric new particle formation is generally thought to occur due to homogeneous or ion-induced nucleation of sulphuric acid. We compare ambient nucleation rates with laboratory data from nucleation experiments involving either sulphuric acid or o
Externí odkaz:
https://doaj.org/article/c2241528c5114cb9bc9aa43ded1d6ee6