Zobrazeno 1 - 10
of 4 648
pro vyhledávání: '"R. Worsnop"'
Autor:
T. Pan, A. T. Lambe, W. Hu, Y. He, M. Hu, H. Zhou, X. Wang, Q. Hu, H. Chen, Y. Zhao, Y. Huang, D. R. Worsnop, Z. Peng, M. A. Morris, D. A. Day, P. Campuzano-Jost, J.-L. Jimenez, S. H. Jathar
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 4915-4939 (2024)
Oxidation flow reactors (OFRs) have been extensively utilized to examine the formation of secondary organic aerosol (SOA). However, the UV lamps typically employed to initiate the photochemistry in OFRs can result in an elevated reactor temperature w
Externí odkaz:
https://doaj.org/article/c1190ee91a534554a59f44ffbcdedf73
Autor:
Z. Zhang, W. Xu, Y. Zhang, W. Zhou, X. Xu, A. Du, H. Qiao, Y. Kuang, X. Pan, Z. Wang, X. Cheng, L. Liu, Q. Fu, D. R. Worsnop, J. Li, Y. Sun
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8473-8488 (2024)
Aerosol particles play critical roles in climate and human health. However, aerosol composition and evolution, particularly secondary organic aerosol (SOA), and aerosol interactions with clouds in high-altitude background areas in China remain less u
Externí odkaz:
https://doaj.org/article/77b2efa61b884a43a9f9227a181fd9b6
Autor:
M. Irfan, T. Kühn, T. Yli-Juuti, A. Laakso, E. Holopainen, D. R. Worsnop, A. Virtanen, H. Kokkola
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8489-8506 (2024)
Secondary organic aerosol (SOA) constitutes an important component of atmospheric particulate matter, with a substantial influence on air quality, human health and the global climate. The volatility basis set (VBS) framework has provided a valuable t
Externí odkaz:
https://doaj.org/article/55b73651e56b4549b47045b9989851b6
Autor:
M. Konwar, B. Werden, E. C. Fortner, S. Bera, M. Varghese, S. Chowdhuri, K. Hibert, P. Croteau, J. Jayne, M. Canagaratna, N. Malap, S. Jayakumar, S. A. Dixit, P. Murugavel, D. Axisa, D. Baumgardner, P. F. DeCarlo, D. R. Worsnop, T. Prabhakaran
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 2387-2400 (2024)
Cloud seeding experiments for modifying clouds and precipitation have been underway for nearly a century; yet practically all the attempts to link precipitation enhancement or suppression to the presence of seeding materials within clouds remain elus
Externí odkaz:
https://doaj.org/article/c6550a1926664ae08de962dd52885cf2
Autor:
M. Kulmala, D. Aliaga, S. Tuovinen, R. Cai, H. Junninen, C. Yan, F. Bianchi, Y. Cheng, A. Ding, D. R. Worsnop, T. Petäjä, K. Lehtipalo, P. Paasonen, V.-M. Kerminen
Publikováno v:
Aerosol Research, Vol 2, Pp 49-58 (2024)
Atmospheric new particle formation (NPF) and associated production of secondary particulate matter dominate aerosol particle number concentrations and submicron particle mass loadings in many environments globally. Our recent investigations show that
Externí odkaz:
https://doaj.org/article/7882fe12d25043a98cfd28db5ac1779e
Autor:
A. T. Lambe, B. Bai, M. Takeuchi, N. Orwat, P. M. Zimmerman, M. W. Alton, N. L. Ng, A. Freedman, M. S. Claflin, D. R. Gentner, D. R. Worsnop, P. Liu
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 13869-13882 (2023)
We present a novel photolytic source of gas-phase NO3 suitable for use in atmospheric chemistry studies that has several advantages over traditional sources that utilize NO2 + O3 reactions and/or thermal dissociation of dinitrogen pentoxide (N2O5). T
Externí odkaz:
https://doaj.org/article/01258289215640c88f97c05f548d55b7
Autor:
X.-C. He, J. Shen, S. Iyer, P. Juuti, J. Zhang, M. Koirala, M. M. Kytökari, D. R. Worsnop, M. Rissanen, M. Kulmala, N. M. Maier, J. Mikkilä, M. Sipilä, J. Kangasluoma
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 4461-4487 (2023)
The multi-scheme chemical ionisation inlet 1 (MION1) enables rapid switching between the measurement of atmospheric ions without chemical ionisation and neutral molecules using various atmospheric pressure chemical ionisation methods. In this study,
Externí odkaz:
https://doaj.org/article/9c00a27cd1f44278a27c0fd28397137b
Autor:
L. Caudillo, M. Surdu, B. Lopez, M. Wang, M. Thoma, S. Bräkling, A. Buchholz, M. Simon, A. C. Wagner, T. Müller, M. Granzin, M. Heinritzi, A. Amorim, D. M. Bell, Z. Brasseur, L. Dada, J. Duplissy, H. Finkenzeller, X.-C. He, H. Lamkaddam, N. G. A. Mahfouz, V. Makhmutov, H. E. Manninen, G. Marie, R. Marten, R. L. Mauldin, B. Mentler, A. Onnela, T. Petäjä, J. Pfeifer, M. Philippov, A. A. Piedehierro, B. Rörup, W. Scholz, J. Shen, D. Stolzenburg, C. Tauber, P. Tian, A. Tomé, N. S. Umo, D. S. Wang, Y. Wang, S. K. Weber, A. Welti, M. Zauner-Wieczorek, U. Baltensperger, R. C. Flagan, A. Hansel, J. Kirkby, M. Kulmala, K. Lehtipalo, D. R. Worsnop, I. E. Haddad, N. M. Donahue, A. L. Vogel, A. Kürten, J. Curtius
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 6613-6631 (2023)
Currently, the complete chemical characterization of nanoparticles (< 100 nm) represents an analytical challenge, since these particles are abundant in number but have negligible mass. Several methods for particle-phase characterization have been rec
Externí odkaz:
https://doaj.org/article/1e9ea0019e5c41b08717585c9c9d7c81
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 5567-5585 (2023)
In the lower troposphere, rapid collisions between ions and trace gases result in the transfer of positive charge to the highest proton affinity species and negative charge to the lowest proton affinity species. Measurements of the chemical compositi
Externí odkaz:
https://doaj.org/article/62fd00dcebf1443fa1006f6af13a0aaf
Autor:
J. Zhao, E. Häkkinen, F. Graeffe, J. E. Krechmer, M. R. Canagaratna, D. R. Worsnop, J. Kangasluoma, M. Ehn
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 3707-3730 (2023)
Highly oxygenated organic molecules (HOMs) are important for the formation of secondary organic aerosol (SOA), which poses serious health risks and exerts great influence on Earth's climate. However, the speciation of particle-phase HOMs and its rela
Externí odkaz:
https://doaj.org/article/656bbe5d3e2b45efaa64bc2681ab6dda