Výsledky vyhledávání - "Kauko, Janka"

Improving Urban Air Quality Measurements by a Diffusion Charger Based Electrical Particle Sensors - A Field Study in Beijing, China

Autor: Hui Li, Anssi Järvinen, Jian Gao, Topi Rönkkö, Miikka Dal Maso, Kauko Janka, Datong Luo

Publikováno v: Aerosol and Air Quality Research. 16:3001-3011

High aerosol loadings contribute significantly to the air quality problems of Asian megacities. To address this, monitoring data for aerosol mass and number that is spatially and temoprally of high resolution is needed, while the cost of obtaining su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80bf63141bf8d4f992788ad1e4f87a58
https://doi.org/10.4209/aaqr.2015.09.0546

Zobrazit plný text záznamu

Monitoring urban air quality with a diffusion charger based electrical particle sensor

Autor: Sampo Saari, Risto Hillamo, Kauko Janka, Liisa Pirjola, Jarkko V. Niemi, Anssi Järvinen, Topi Rönkkö, Jorma Keskinen, Heino Kuuluvainen, M. Dal Maso

Publikováno v: Urban Climate. 14:441-456

Urban air contains considerable amounts of harmful gaseous substances and aerosol particles. In this study, a recently introduced diffusion charger based PPS-M particle sensor (Pegasor Oy, Tampere, Finland) was evaluated for outdoor air quality measu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1bc34a83c69a03958c0b1ebf5704fbc
https://doi.org/10.1016/j.uclim.2014.10.002

Zobrazit plný text záznamu

Improved PN measurement with PPS-M using dynamic trap switching

Autor: Erkka Saukko, Niina Kuittinen, Henna Silvennoinen, Riina Hietikko, Topi Rönkkö, Panu Karjalainen, Niemi, Jarkko V., Jorma Keskinen, Kauko Janka

Publikováno v: Saukko, E, Kuittinen, N, Silvennoinen, H, Hietikko, R, Rönkkö, T, Karjalainen, P, Niemi, J V, Keskinen, J & Janka, K 2017, ' Improved PN measurement with PPS-M using dynamic trap switching ', 7th International PEMS Conference & Workshop, PEMS 2017, Riverside, United States, 30/03/17-31/03/17 .
Tampere University

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7315740dba0054a980a10895f837f1a4
https://cris.vtt.fi/en/publications/a4cbfe02-7392-4e24-b1d6-2ed068a212b2

Zobrazit plný text záznamu

A New Miniaturized Sensor for Ultra-Fast On-Board Soot Concentration Measurements

Autor: Risto Hillamo, Zissis Samaras, Topi Rönkkö, Antti Rostedt, Leonidas Ntziachristos, Jorma Keskinen, Kauko Janka, Pauli Simonen

In this article we present a design of a new miniaturized sensor with the capacity to measure exhaust particle concentrations on board vehicles and engines. The sensor is characterized by ultra-fast response time, high sensitivity, and a wide dynamic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a42a75fb912b938efd770edb16300710
https://trepo.tuni.fi/handle/10024/126126

Zobrazit plný text záznamu

Characterization and Response Model of the PPS-M Aerosol Sensor

Autor: Antti Rostedt, Jaakko Yli-Ojanperä, Kauko Janka, Anssi Arffman, Jorma Keskinen

Publikováno v: Aerosol Science and Technology. 48:1022-1030

The Pegasor PPS-M sensor is an electrical aerosol sensor based on diffusion charging and current measurement without particle collection. In this study, the role and effect of each component in the instrument is discussed shortly and the results from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f1f926fe4587af2524f70f5dbdecb8e
https://doi.org/10.1080/02786826.2014.951023

Zobrazit plný text záznamu

Non-Collecting Electrical Sensor for Particle Concentration Measurement

Autor: Jaakko Yli-Ojanperä, Antti Rostedt, Ari Ukkonen, Kauko Janka, Marko Marjamäki, Ville Niemelä, Jorma Keskinen

Publikováno v: Aerosol and Air Quality Research. 9:470-477

A novel particle emission sensor based on particle charging and electrical detection is presented. The sensor charges the particles and measures the current carried by the particles exiting the sensor. The measurement is carried out without collectin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f2b19836781d98900e345e9131b2bae1
https://doi.org/10.4209/aaqr.2009.03.0023

Zobrazit plný text záznamu

Use of a PPS Sensor in Evaluating the Impact of Fuel Efficiency Improvement Technologies on the Particle Emissions of a Euro 5 Diesel Car

Autor: Juha Tikkanen, Stavros Amanatidis, Zissis Samaras, Chariton Kouridis, Leonidas Ntziachristos, Kauko Janka

Publikováno v: SAE Technical Paper Series.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::366c98f68591d6f229b562b3447809e3
https://doi.org/10.4271/2014-01-1601

Zobrazit plný text záznamu

Alkali Salt Ash Formation in Four Finnish Industrial Recovery Boilers

Autor: Kauko Janka, Esa Vakkilainen, Jouni Pyykönen, Minna Aurela, Esko I. Kauppinen, Pirita Mikkanen, Jorma Jokiniemi

Publikováno v: Mikkanen, P, Kauppinen, E I, Pyykönen, J, Jokiniemi, J, Aurela, M, Vakkilainen, E & Janka, K 1999, ' Alkali salt ash formation in four Finnish industrial recovery boilers ', Energy & Fuels, vol. 13, no. 4, pp. 778-795 . https://doi.org/10.1021/ef980189o

Combustion aerosol measurement methods were introduced and applied for extensive ash formation studies at four operating recovery boilers in Finland. Ash particle mass size distributions determined with a Berner-type low-pressure impactor downstream

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b387738799424f56655072e3a061d2f
https://doi.org/10.1021/ef980189o

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání