Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Jonna Kannosto"'
Publikováno v:
Pharmaceutical Research. 34:1707-1715
This work investigated the effect of relative humidity (RH) on bipolar electrostatic charge profiles of dry powder inhaler aerosols using the Bipolar Charge Analyzer (BOLAR). Two commercial products, Pulmicort® (400 μg, budesonide) and Bricanyl® (
Autor:
Ari Laaksonen, Annele Virtanen, Liqing Hao, Jarmo K. Holopainen, Jonna Kannosto, Jorma Keskinen, James N. Smith, Petri Tiitta, Anssi Arffman, Douglas R. Worsnop, Erkka Saukko, Heino Kuuluvainen, Pasi Yli-Pirilä, Jorma Joutsensaari
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 16, Pp 8759-8766 (2011)
The assessment of the climatic impacts and adverse health effects of atmospheric aerosol particles requires detailed information on particle properties. However, very limited information is available on the morphology and phase state of secondary org
Publikováno v:
Aerosol and Air Quality Research. 10:360-366
The nanoparticle resolution of Electrical Low Pressure Impactor (ELPI) has been improved by designing and manufacturing a new impactor stage for the impactor. The measured cutpoint of the stage is 16.7 nm. The additional stage does not affect the pro
Publikováno v:
Rönkkö, T, Virtanen, A, Kannosto, J, Keskinen, J, Lappi, M & Pirjola, L 2007, ' Nucleation mode particles with a nonvolatile core in the exhaust of a heavy duty diesel vehicle ', Environmental Science & Technology, vol. 41, no. 18, pp. 6384-6389 . https://doi.org/10.1021/es0705339
The characteristics of the nucleation mode particles of a Euro IV heavy-duty diesel vehicle exhaust were studied. The NOx and PM emissions of the vehicle were controlled through the use of cooled EGR and high-pressure fuel injection techniques; no ex
Autor:
Jyrki M. Mäkelä, Jyrki Ristimäki, Risto Hillamo, Tuomo A. Pakkanen, Jonna Kannosto, Liisa Pirjola, Annele Virtanen, Kaarle Hämeri, Jorma Keskinen, Topi Rönkkö
Publikováno v:
Atmospheric Chemistry and Physics. 6:2411-2421
Number concentrations and size distributions of traffic related aerosol particles were measured at a roadside in Helsinki during two winter campaigns (10–26 February 2003, 28 January–12 February 2004) and two summer campaigns (12–27 August 2003
Publikováno v:
Aerosol Science and Technology. 37:476-485
Most approaches for evaluating rates of fundamental processes in aerosol science depend upon the implicit assumption that aerosol particles are independently and identically distributed in space. The validity of this assumption has not been examined
Autor:
Ari Laaksonen, Pasi Yli-Pirilä, Ulrich Pöschl, Jonna Kannosto, Jarmo K. Holopainen, Thomas Koop, Annele Virtanen, Jyrki M. Mäkelä, Douglas R. Worsnop, Markku Kulmala, Jani Leskinen, Jorma Joutsensaari
Publikováno v:
Nature
Secondary organic aerosol (SOA) particles are formed in the atmosphere from condensable oxidation products of anthropogenic and biogenic volatile organic compounds (VOCs)(1-7). On a global scale, biogenic VOCs account for about 90% of VOC emissions(1
Publikováno v:
Aerosol Science and Technology. 38:129-130
The likelihood of this scenario can be estimated by a closer examination of the counter operation. Our counter (CLIMET CI-8060) has two voltage thresholds for each size bin; a higher one for the detection of a particle (“On”) and another, lower,
Publikováno v:
Tampere University
Nucleation and Atmospheric Aerosols ISBN: 9781402064746
Nucleation and Atmospheric Aerosols ISBN: 9781402064746
Detailed information of particle properties is needed to predict the effects of aerosols in the atmosphere. Chemical composition carries information about the formation mechanisms of the particles. We have developed a method to detect the density of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::988ceaae660a9c7b696c12c30f4b17e6
https://researchportal.tuni.fi/en/publications/77ec71fa-6152-431d-84ac-bac1e3b97154
https://researchportal.tuni.fi/en/publications/77ec71fa-6152-431d-84ac-bac1e3b97154
Autor:
Jorma Keskinen, Annele Virtanen, Markku Kulmala, Heikki Junninen, Pasi Aalto, Tareq Hussein, Jonna Kannosto, Jyrki M. Mäkelä, Mikko Lemmetty
Publikováno v:
Tampere University
ResearcherID
University of Helsinki
Atmospheric Chemistry and Physics, Vol 8, Iss 17, Pp 5327-5337 (2008)
ResearcherID
University of Helsinki
Atmospheric Chemistry and Physics, Vol 8, Iss 17, Pp 5327-5337 (2008)
In this study, we investigate the mode resolved density of ultrafine atmospheric particles measured in boreal forest environment. The method used here enables us to find the distinct density information for each mode in atmospheric fine particle popu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ff7cefabd2b1c0767fee67ee1885102
https://researchportal.tuni.fi/en/publications/02448d45-34fd-477a-b7da-06c81bc2859b
https://researchportal.tuni.fi/en/publications/02448d45-34fd-477a-b7da-06c81bc2859b