Zobrazeno 1 - 10
of 84
pro vyhledávání: '"L. Rondo"'
Autor:
G. Tsagkogeorgas, P. Roldin, J. Duplissy, L. Rondo, J. Tröstl, J. G. Slowik, S. Ehrhart, A. Franchin, A. Kürten, A. Amorim, F. Bianchi, J. Kirkby, T. Petäjä, U. Baltensperger, M. Boy, J. Curtius, R. C. Flagan, M. Kulmala, N. M. Donahue, F. Stratmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 8923-8938 (2017)
Evaporation of sulfuric acid from particles can be important in the atmospheres of Earth and Venus. However, the equilibrium constant for the dissociation of H2SO4 to bisulfate ions, which is the one of the fundamental parameters controlling the e
Externí odkaz:
https://doaj.org/article/ded96fd100b84c63b80243645bdce68f
Autor:
M. J. Lawler, P. M. Winkler, J. Kim, L. Ahlm, J. Tröstl, A. P. Praplan, S. Schobesberger, A. Kürten, J. Kirkby, F. Bianchi, J. Duplissy, A. Hansel, T. Jokinen, H. Keskinen, K. Lehtipalo, M. Leiminger, T. Petäjä, M. Rissanen, L. Rondo, M. Simon, M. Sipilä, C. Williamson, D. Wimmer, I. Riipinen, A. Virtanen, J. N. Smith
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 13601-13618 (2016)
New particle formation driven by acid–base chemistry was initiated in the CLOUD chamber at CERN by introducing atmospherically relevant levels of gas-phase sulfuric acid and dimethylamine (DMA). Ammonia was also present in the chamber as a gas-ph
Externí odkaz:
https://doaj.org/article/951f02476bb441de8f74f1cccbbd4f46
Autor:
J. Kim, L. Ahlm, T. Yli-Juuti, M. Lawler, H. Keskinen, J. Tröstl, S. Schobesberger, J. Duplissy, A. Amorim, F. Bianchi, N. M. Donahue, R. C. Flagan, J. Hakala, M. Heinritzi, T. Jokinen, A. Kürten, A. Laaksonen, K. Lehtipalo, P. Miettinen, T. Petäjä, M. P. Rissanen, L. Rondo, K. Sengupta, M. Simon, A. Tomé, C. Williamson, D. Wimmer, P. M. Winkler, S. Ehrhart, P. Ye, J. Kirkby, J. Curtius, U. Baltensperger, M. Kulmala, K. E. J. Lehtinen, J. N. Smith, I. Riipinen, A. Virtanen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 293-304 (2016)
Sulfuric acid, amines and oxidized organics have been found to be important compounds in the nucleation and initial growth of atmospheric particles. Because of the challenges involved in determining the chemical composition of objects with very small
Externí odkaz:
https://doaj.org/article/28171d5f1fac4f338639df9f83d730e2
Autor:
A. Kürten, S. Münch, L. Rondo, F. Bianchi, J. Duplissy, T. Jokinen, H. Junninen, N. Sarnela, S. Schobesberger, M. Simon, M. Sipilä, J. Almeida, A. Amorim, J. Dommen, N. M. Donahue, E. M. Dunne, R. C. Flagan, A. Franchin, J. Kirkby, A. Kupc, V. Makhmutov, T. Petäjä, A. P. Praplan, F. Riccobono, G. Steiner, A. Tomé, G. Tsagkogeorgas, P. E. Wagner, D. Wimmer, U. Baltensperger, M. Kulmala, D. R. Worsnop, J. Curtius
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 18, Pp 10701-10721 (2015)
Sulfuric acid is an important gas influencing atmospheric new particle formation (NPF). Both the binary (H2SO4–H2O) system and the ternary system involving ammonia (H2SO4–H2O–NH3) may be important in the free troposphere. An essential step in t
Externí odkaz:
https://doaj.org/article/846a76561268477ab7186ecbb4852fa9
Autor:
D. Wimmer, K. Lehtipalo, T. Nieminen, J. Duplissy, S. Ehrhart, J. Almeida, L. Rondo, A. Franchin, F. Kreissl, F. Bianchi, H. E. Manninen, M. Kulmala, J. Curtius, T. Petäjä
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 13, Pp 7547-7555 (2015)
Over the last few years, several condensation particle counters (CPCs) capable of measuring in the sub-3 nm size range have been developed. Here we study the performance of CPCs based on diethylene glycol (DEG) at different temperatures during Cosmic
Externí odkaz:
https://doaj.org/article/59b8abb36a064366b37e931207e8f959
Autor:
A. Franchin, S. Ehrhart, J. Leppä, T. Nieminen, S. Gagné, S. Schobesberger, D. Wimmer, J. Duplissy, F. Riccobono, E. M. Dunne, L. Rondo, A. Downard, F. Bianchi, A. Kupc, G. Tsagkogeorgas, K. Lehtipalo, H. E. Manninen, J. Almeida, A. Amorim, P. E. Wagner, A. Hansel, J. Kirkby, A. Kürten, N. M. Donahue, V. Makhmutov, S. Mathot, A. Metzger, T. Petäjä, R. Schnitzhofer, M. Sipilä, Y. Stozhkov, A. Tomé, V.-M. Kerminen, K. Carslaw, J. Curtius, U. Baltensperger, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 13, Pp 7203-7216 (2015)
We present the results of laboratory measurements of the ion–ion recombination coefficient at different temperatures, relative humidities and concentrations of ozone and sulfur dioxide. The experiments were carried out using the Cosmics Leaving OUt
Externí odkaz:
https://doaj.org/article/d7205f9e96324d46b038ec4056d36371
Autor:
A. P. Praplan, S. Schobesberger, F. Bianchi, M. P. Rissanen, M. Ehn, T. Jokinen, H. Junninen, A. Adamov, A. Amorim, J. Dommen, J. Duplissy, J. Hakala, A. Hansel, M. Heinritzi, J. Kangasluoma, J. Kirkby, M. Krapf, A. Kürten, K. Lehtipalo, F. Riccobono, L. Rondo, N. Sarnela, M. Simon, A. Tomé, J. Tröstl, P. M. Winkler, C. Williamson, P. Ye, J. Curtius, U. Baltensperger, N. M. Donahue, M. Kulmala, D. R. Worsnop
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 8, Pp 4145-4159 (2015)
This study presents the difference between oxidised organic compounds formed by α-pinene oxidation under various conditions in the CLOUD environmental chamber: (1) pure ozonolysis (in the presence of hydrogen as hydroxyl radical (OH) scavenger) a
Externí odkaz:
https://doaj.org/article/be6241396e684380a03eb6b3064e68ad
Autor:
S. Schobesberger, A. Franchin, F. Bianchi, L. Rondo, J. Duplissy, A. Kürten, I. K. Ortega, A. Metzger, R. Schnitzhofer, J. Almeida, A. Amorim, J. Dommen, E. M. Dunne, M. Ehn, S. Gagné, L. Ickes, H. Junninen, A. Hansel, V.-M. Kerminen, J. Kirkby, A. Kupc, A. Laaksonen, K. Lehtipalo, S. Mathot, A. Onnela, T. Petäjä, F. Riccobono, F. D. Santos, M. Sipilä, A. Tomé, G. Tsagkogeorgas, Y. Viisanen, P. E. Wagner, D. Wimmer, J. Curtius, N. M. Donahue, U. Baltensperger, M. Kulmala, D. R. Worsnop
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 1, Pp 55-78 (2015)
The formation of particles from precursor vapors is an important source of atmospheric aerosol. Research at the Cosmics Leaving OUtdoor Droplets (CLOUD) facility at CERN tries to elucidate which vapors are responsible for this new-particle formation,
Externí odkaz:
https://doaj.org/article/d0ab1e3a0a0344b5a42b04c07ed3975f
Autor:
L. Rondo, A. Kürten, S. Ehrhart, S. Schobesberger, A. Franchin, H. Junninen, T. Petäjä, M. Sipilä, D. R. Worsnop, J. Curtius
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Pp 3849-3859 (2014)
Ternary aerosol nucleation experiments were conducted in the CLOUD chamber at CERN in order to investigate the influence of ions on new particle formation. Neutral and ion-induced nucleation experiments, i.e. without and with the presence of ions,
Externí odkaz:
https://doaj.org/article/fe2c6933d6594268a8d9c503366076e8
Autor:
B. Bonn, E. Bourtsoukidis, T. S. Sun, H. Bingemer, L. Rondo, U. Javed, J. Li, R. Axinte, X. Li, T. Brauers, H. Sonderfeld, R. Koppmann, A. Sogachev, S. Jacobi, D. V. Spracklen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 19, Pp 10823-10843 (2014)
It has been claimed for more than a century that atmospheric new particle formation is primarily influenced by the presence of sulfuric acid. However, the activation process of sulfuric acid related clusters into detectable particles is still an unre
Externí odkaz:
https://doaj.org/article/b2b260e9607f4364a45f8fc87289897c