Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Theo Kurtén"'
Autor:
Jakub Kubečka, Vitus Besel, Ivo Neefjes, Yosef Knattrup, Theo Kurtén, Hanna Vehkamäki, Jonas Elm
Publikováno v:
ACS Omega, Vol 8, Iss 47, Pp 45115-45128 (2023)
Externí odkaz:
https://doaj.org/article/09cb56b1f9d84e269b72244d67185a3c
Autor:
Siddharth Iyer, Avinash Kumar, Anni Savolainen, Shawon Barua, Christopher Daub, Lukas Pichelstorfer, Pontus Roldin, Olga Garmash, Prasenjit Seal, Theo Kurtén, Matti Rissanen
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract The oxidation of aromatics contributes significantly to the formation of atmospheric aerosol. Using toluene as an example, we demonstrate the existence of a molecular rearrangement channel in the oxidation mechanism. Based on both flow react
Externí odkaz:
https://doaj.org/article/9a922836cdd14a9581edaac19d7d6082
Publikováno v:
Scientific Data, Vol 10, Iss 1, Pp 1-11 (2023)
Abstract Low-volatile organic compounds (LVOCs) drive key atmospheric processes, such as new particle formation (NPF) and growth. Machine learning tools can accelerate studies of these phenomena, but extensive and versatile LVOC datasets relevant for
Externí odkaz:
https://doaj.org/article/d6ef769c765b4c4896d80d09fca99824
Autor:
Michael Boy, Putian Zhou, Theo Kurtén, Dean Chen, Carlton Xavier, Petri Clusius, Pontus Roldin, Metin Baykara, Lukas Pichelstorfer, Benjamin Foreback, Jaana Bäck, Tuukka Petäjä, Risto Makkonen, Veli-Matti Kerminen, Mari Pihlatie, Juho Aalto, Markku Kulmala
Publikováno v:
npj Climate and Atmospheric Science, Vol 5, Iss 1, Pp 1-10 (2022)
Abstract A multitude of biogeochemical feedback mechanisms govern the climate sensitivity of Earth in response to radiation balance perturbations. One feedback mechanism, which remained missing from most current Earth System Models applied to predict
Externí odkaz:
https://doaj.org/article/e887d2778866411a845d1c050fc16bd1
Autor:
Siddharth Iyer, Avinash Kumar, Anni Savolainen, Shawon Barua, Christopher Daub, Lukas Pichelstorfer, Pontus Roldin, Olga Garmash, Prasenjit Seal, Theo Kurtén, Matti Rissanen
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/5e42b920269f43f6aad505cb818051ef
Autor:
Siddharth Iyer, Matti P. Rissanen, Rashid Valiev, Shawon Barua, Jordan E. Krechmer, Joel Thornton, Mikael Ehn, Theo Kurtén
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Oxidation of volatile organic compounds leads to aerosol formation in the atmosphere, but the mechanism of some fast reactions is still unclear. The authors, using quantum chemical modelling and experiments, reveal that in key monoterpenes the cyclob
Externí odkaz:
https://doaj.org/article/a5c1f50ac78743d481848f3b42f2f0de
Autor:
Pontus Roldin, Mikael Ehn, Theo Kurtén, Tinja Olenius, Matti P. Rissanen, Nina Sarnela, Jonas Elm, Pekka Rantala, Liqing Hao, Noora Hyttinen, Liine Heikkinen, Douglas R. Worsnop, Lukas Pichelstorfer, Carlton Xavier, Petri Clusius, Emilie Öström, Tuukka Petäjä, Markku Kulmala, Hanna Vehkamäki, Annele Virtanen, Ilona Riipinen, Michael Boy
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-15 (2019)
Forests emit compounds into the atmosphere that are oxidized into highly oxygenated molecules that serve as precursors for cloud condensation nuclei–a process that impacts the climate, but is poorly represented in models. Here the authors create a
Externí odkaz:
https://doaj.org/article/44d7925ecfeb40f08bf4925e80ac9daf
Publikováno v:
Frontiers in Forests and Global Change, Vol 2 (2019)
Resin is a first-line defense in pine trees, but important questions regarding its temporal and spatial variation remain unsolved. Resin pressure varies according to water potential in dry conditions, but in moist conditions, it follows temperature d
Externí odkaz:
https://doaj.org/article/9b89e0ad798641be906d72ff4a7db067
Autor:
Torsten Berndt, Stefanie Richters, Tuija Jokinen, Noora Hyttinen, Theo Kurtén, Rasmus V. Otkjær, Henrik G. Kjaergaard, Frank Stratmann, Hartmut Herrmann, Mikko Sipilä, Markku Kulmala, Mikael Ehn
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Secondary organic aerosols are important contributors to the Earth’s radiation budget, however questions remain about their formation from highly-oxidized precursors. Here the authors show that the daytime reaction of hydroxyl radicals with α- and
Externí odkaz:
https://doaj.org/article/4fc1c57d2b6e487bac8be8f8eadae203
Autor:
Theo Kurtén
Publikováno v:
Entropy, Vol 13, Iss 4, Pp 915-923 (2011)
Nadykto, Yu, Jakovleva, Herb and Xu have recently reported a DFT study on the structure and formation thermodynamics of sulfuric acid-base-water clusters, with ammonia and a handful of amines as bases [1]. This study partially overlaps with our previ
Externí odkaz:
https://doaj.org/article/33c60df3b6644792a58d8ee2d3d3fd53