Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Jussi Lyyränen"'
Autor:
Tapani Tuomi, Jussi Lyyränen
Publikováno v:
Toxics, Vol 12, Iss 4, p 241 (2024)
When possible, choosing materials with a low quartz content is the most effective and cost-efficient way to prevent the respirable quartz exposure of workers and other end users of powdery products. Therefore, methods are needed to analyze low amount
Externí odkaz:
https://doaj.org/article/e8a36b28492b44c3b64a704827672806
Publikováno v:
Kärkelä, T, Auvinen, A, Kekki, T, Kotiluoto, P, Lyyränen, J & Jokiniemi, J 2015, ' Radiolytical oxidation of gaseous iodine by beta radiation ', Radiochimica Acta, vol. 103, no. 10, pp. 719-728 . https://doi.org/10.1515/ract-2015-2417
Iodine is one of the most radiotoxic fission product released from fuel during a severe nuclear power plant accident. Within the containment building, iodine compounds can react e.g. on the painted surfaces and form gaseous organic iodides. In this s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13339d0756c5752ac9d0b8e6808f4085
https://doi.org/10.1515/ract-2015-2417
https://doi.org/10.1515/ract-2015-2417
Autor:
Jorma Jokiniemi, Kaarle Hämeri, Ari Auvinen, Esa Vanhala, Jussi Lyyränen, Timo Tuomi, Antti Joonas Koivisto
Publikováno v:
Koivisto, A J, Lyyränen, J, Auvinen, A, Vanhala, E, Hämeri, K, Tuomi, T & Jokiniemi, J 2012, ' Industrial worker exposure to airborne particles during the packing of pigment and nanoscale titanium dioxide ', Inhalation Toxicology, vol. 24, no. 12, pp. 839-849 . https://doi.org/10.3109/08958378.2012.724474
Context: Titanium dioxide (TiO2) factory workers’ source specific exposure and dose to airborne particles was studied extensively for particles between 5 nm and 10 μm in size.Objective: We defined TiO2 industry workers’ quantitative inhalation e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7572778b7f5654f100699de30599d2fa
https://doi.org/10.3109/08958378.2012.724474
https://doi.org/10.3109/08958378.2012.724474
Publikováno v:
Sarvi, A, Lyyränen, J, Jokiniemi, J & Zevenhoven, R 2011, ' Particulate emissions from large-scale medium-speed diesel engines : 2. Chemical composition ', Fuel Processing Technology, vol. 92, no. 10, pp. 2116-2122 . https://doi.org/10.1016/j.fuproc.2011.06.021
The effect of diesel fuel and operation mode on diesel particulate matter (PM) emissions was studied using a combination of a gravimetric impactor (DGI) and SEM/EDX analysis of PM particles from 0.005 to 2.5 μm aerodynamic size. Tests were made with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d242a9c3081b125c773f6c0eb10127c
https://doi.org/10.1016/j.fuproc.2011.06.021
https://doi.org/10.1016/j.fuproc.2011.06.021
Autor:
Risto Hillamo, Arto Pennanen, Unto Tapper, Karri Saarnio, R. O. Salonen, Anna Frey, Kati Hytönen, Olli Sippula, M. R. Hirvonen, Jussi Lyyränen, Jarkko Tissari, Jorma Jokiniemi
Publikováno v:
Tissari, J, Lyyränen, J, Hytönen, K, Sippula, O, Tapper, U, Frey, A, Saarnio, K, Pennanen, A S, Hillamo, R, Salonen, R O, Hirvonen, M-R & Jokiniemi, J 2008, ' Fine particle and gaseous emissions from normal and smouldering wood combustion in a conventional masonry heater ', Atmospheric Environment, vol. 42, no. 34, pp. 7862-7873 . https://doi.org/10.1016/j.atmosenv.2008.07.019
The fine particle and gas emissions from the residential wood combustion (RWC) appear to be a major contributor to winter-time pollution in Europe. In this study, we characterised the effect of two different combustion conditions on particulate and g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cad8296ab168aae789bc8ef50bf5b78
https://doi.org/10.1016/j.atmosenv.2008.07.019
https://doi.org/10.1016/j.atmosenv.2008.07.019
Publikováno v:
Tissari, J, Hytönen, K, Lyyränen, J & Jokiniemi, J 2007, ' A novel field measurement method for determining fine particle and gas emissions from residential wood combustion ', Atmospheric Environment, vol. 41, no. 37, pp. 8330-8344 . https://doi.org/10.1016/j.atmosenv.2007.06.018
Emission data from residential wood combustion are usually obtained on test stands in the laboratory but these measurements do not correspond to the operational conditions in the field because of the technological boundary conditions (e.g. testing pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a3b77472338115083512236c684dae
https://doi.org/10.1016/j.atmosenv.2007.06.018
https://doi.org/10.1016/j.atmosenv.2007.06.018
Publikováno v:
Kärkelä, T, Auvinen, A, Kekki, T, Kotiluoto, P & Lyyränen, J 2015, Studies on the oxidation of organic iodine by beta radiation . in ERMSAR 2015 . IRSN, 7th Conference on Severe Accident Research, ERMSAR 2015, Marseille, France, 24/03/15 . < http://www.sar-net.eu/sites/default/files/ERMSAR_2015/Papers/Source_Term_Issues/018_K%C3%A4rkel%C3%A4_final.pdf >
VTT Technical Research Centre of Finland-PURE
VTT Technical Research Centre of Finland-PURE
The first experiments on the radiolytical oxidation of gaseous iodine by beta radiation were conducted with a new BESSEL (Beta irradiation vESSEL) test facility of VTT Technical Research Centre of Finland. The reaction chamber was made of glass and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::de6171a8158408ac785b43f0c791594b
https://cris.vtt.fi/en/publications/f797e32e-1fe2-4a43-ae72-03d1970d8f6e
https://cris.vtt.fi/en/publications/f797e32e-1fe2-4a43-ae72-03d1970d8f6e
Publikováno v:
Fuel Processing Technology. 86:329-352
A new laboratory-scale deposition–corrosion apparatus (DCA) has been designed to study the corrosion of Nimonic 80 A samples. The apparatus simulates conditions in a large-scale diesel engine operated with high sulphur- and ash-content heavy fuel o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::440bdb77189a333586d198a8d1ecae38
https://doi.org/10.1016/j.fuproc.2004.03.012
https://doi.org/10.1016/j.fuproc.2004.03.012
Publikováno v:
Lyyränen, J, Jokiniemi, J, Kauppinen, E I, Vesala, H & Backman, U 2004, ' Comparison of different dilution methods for measuring diesel particle emissions ', Aerosol Science and Technology, vol. 38, no. 1, pp. 12-23 . https://doi.org/10.1080/02786820490247579
Particle emissions from a turbo-charged diesel off-road engine were characterized with DMA + CNC and electron microscopy for comparison of different sampling and dilution systems. Four different sampling methods were used: (1) two ejector diluters, (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f8450de3c359d0e4844bbca9d18a226
https://doi.org/10.1080/02786820300983
https://doi.org/10.1080/02786820300983
Publikováno v:
Lyyränen, J, Jokiniemi, J & Kauppinen, E 2002, ' The effect of Mg-based additive on aerosol characteristics in medium-speed diesel engines operating with residual fuel oils ', Journal of Aerosol Science, vol. 33, no. 7, pp. 967-981 . https://doi.org/10.1016/S0021-8502(02)00050-2
Aerosol measurements were carried out to determine particle formation and characteristics produced in a 4-stroke, turbo-charged 1 MW diesel engine operating with high ash-content heavy fuel oil with and without a Mg-based additive. The mass size dist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::583c9f5711ae39835342a0b2d758c3e2
https://doi.org/10.1016/s0021-8502(02)00050-2
https://doi.org/10.1016/s0021-8502(02)00050-2