Zobrazeno 1 - 10
of 426
pro vyhledávání: '"M. Olin"'
Autor:
P. Karjalainen, V. Leinonen, M. Olin, K. Vesisenaho, P. Marjanen, A. Järvinen, P. Simonen, L. Markkula, H. Kuuluvainen, J. Keskinen, S. Mikkonen
Publikováno v:
Environmental Advances, Vol 15, Iss , Pp 100454- (2024)
Among various Hybrid Electric Vehicles (HEVs), Plug-in Hybrid Electric Vehicles (PHEVs) charged from the grid are seen as the most advanced ones, as they can drive dozens of kilometers using only the electric engine and thus producing less tailpipe g
Externí odkaz:
https://doaj.org/article/1a6df6dcc8a1438ca6c88325cf2f15ac
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 5075-5089 (2023)
Vehicle chase measurements used for studying real-world emissions apply various methods for calculating emission factors. Currently available methods are typically based on the dilution of emitted carbon dioxide (CO2) and the assumption that other em
Externí odkaz:
https://doaj.org/article/2f4096dcadcd461c82dce7b88c78cc4a
Autor:
M. Okuljar, O. Garmash, M. Olin, J. Kalliokoski, H. Timonen, J. V. Niemi, P. Paasonen, J. Kontkanen, Y. Zhang, H. Hellén, H. Kuuluvainen, M. Aurela, H. E. Manninen, M. Sipilä, T. Rönkkö, T. Petäjä, M. Kulmala, M. Dal Maso, M. Ehn
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 12965-12983 (2023)
Condensable vapors, including highly oxygenated organic molecules (HOMs), govern secondary organic aerosol formation and thereby impact the quantity, composition, and properties (e.g., toxicity) of aerosol particles. These vapors are mainly formed in
Externí odkaz:
https://doaj.org/article/43b86298aad848948e60996a69fade7b
Autor:
M. Olin, M. Okuljar, M. P. Rissanen, J. Kalliokoski, J. Shen, L. Dada, M. Lampimäki, Y. Wu, A. Lohila, J. Duplissy, M. Sipilä, T. Petäjä, M. Kulmala, M. Dal Maso
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 8097-8115 (2022)
The occurrence of new particle formation (NPF) events detected in a coastal agricultural site, at Qvidja, in Southwestern Finland, was investigated using the data measured with a nitrate ion-based chemical-ionization atmospheric-pressure-interface ti
Externí odkaz:
https://doaj.org/article/f866545cccf84b2db1f7e30094105225
Autor:
M. Olin, D. Patoulias, H. Kuuluvainen, J. V. Niemi, T. Rönkkö, S. N. Pandis, I. Riipinen, M. Dal Maso
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 1131-1148 (2022)
Sub-50 nm particles originating from traffic emissions pose risks to human health due to their high lung deposition efficiency and potentially harmful chemical composition. We present a modeling study using an updated European Aerosol Cloud Climate a
Externí odkaz:
https://doaj.org/article/a7cf68c6d2f6455cbe6eb5b68659c320
Autor:
M. Okuljar, H. Kuuluvainen, J. Kontkanen, O. Garmash, M. Olin, J. V. Niemi, H. Timonen, J. Kangasluoma, Y. J. Tham, R. Baalbaki, M. Sipilä, L. Salo, H. Lintusaari, H. Portin, K. Teinilä, M. Aurela, M. Dal Maso, T. Rönkkö, T. Petäjä, P. Paasonen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 9931-9953 (2021)
Most of the anthropogenic air pollution sources are located in urban environments. The contribution of these sources to the population of atmospheric particles in the urban environment is poorly known. In this study, we investigated the aerosol parti
Externí odkaz:
https://doaj.org/article/9fd6b5937c264b78986fc5e43d43ed08
Autor:
M. Olin, H. Kuuluvainen, M. Aurela, J. Kalliokoski, N. Kuittinen, M. Isotalo, H. J. Timonen, J. V. Niemi, T. Rönkkö, M. Dal Maso
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 1-13 (2020)
Elevated ambient concentrations of sub-3 nm particles (nanocluster aerosol, NCA) are generally related to atmospheric new particle formation events, usually linked with gaseous sulfuric acid (H2SO4) produced via photochemical oxidation of sulfur di
Externí odkaz:
https://doaj.org/article/1213e00163394c6997a8cb2aed36e38d
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 6367-6388 (2019)
The homogeneous sulfuric acid–water nucleation rate in conditions related to vehicle exhaust was measured and modeled. The measurements were performed by evaporating sulfuric acid and water liquids and by diluting and cooling the sample vapor with
Externí odkaz:
https://doaj.org/article/72cdb686cea344119bb19e4e7d65f15c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 7067-7090 (2016)
We present the combined power law and log-normal distribution (PL+LN) model, a computationally efficient model to be used in simulations where the particle size distribution cannot be accurately represented by log-normal distributions, such as in
Externí odkaz:
https://doaj.org/article/3db0481b6c8545968099500c27449e8b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 9, Pp 5305-5323 (2015)
A new exhaust aerosol model CFD-TUTEAM (Tampere University of Technology Exhaust Aerosol Model for Computational Fluid Dynamics) was developed. It is based on modal aerosol dynamics modeling with log-normal assumption of particle distributions. The m
Externí odkaz:
https://doaj.org/article/d6e1cea322774223a8fd0fa417bac203