Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Kai, Hämäläinen"'
Autor:
Kai Hämäläinen, Tatiana Trubnikova, Pertti J. Martikainen, Christina Biasi, Simo Jokinen, Markku Oinonen, Maija E. Marushchak
Publikováno v:
Ecosystems. 17:112-126
Knowledge on soil microbial respiration (SMR) rates and thus soil-related CO2 losses from Arctic soils is vital because of the crucial importance of this ecosystem within the global carbon (C) cycle and climate system. Here, we measured SMR from vari
Publikováno v:
Biomass and Bioenergy. 42:219-223
The purpose of the study was to compare torrefaction to partial pyrolysis conducted with a fast heat treatment process. Both torrefaction and the fast heat treatment tests were performed in a bubbling fluidized bed reactor. The study investigated the
Autor:
Christina Biasi, Markku Oinonen, Simo Jokinen, Niina M. Tavi, Kai Hämäläinen, Högne Jungner, Pertti J. Martikainen, Narasinha J. Shurpali
Publikováno v:
Soil Biology and Biochemistry. 43:2406-2409
We tested here a plant-soil system to separate recent, plant-derived and native, soil-derived carbon in soil respiration. The approach uses a perennial crop cultivated on an organic soil where upper soil layers have been removed as a result of peat e
Autor:
Mikko Tuomi, Eloni Sonninen, Peter Spetz, Högne Jungner, Pekka Vanhala, Kai Hämäläinen, Hannu Fritze, Kristiina Karhu, Markku Oinonen, Jari Liski, Veikko Kitunen
Publikováno v:
Ecology. 91:370-376
Feedback to climate warming from the carbon balance of terrestrial ecosystems depends critically on the temperature sensitivity of soil organic carbon (SOC) decomposition. Still, the temperature sensitivity is not known for the majority of the SOC, w
Publikováno v:
Hämäläinen, K, Jungner, H, Antson, O, Räsänen, J, Tormonen, K & Roine, J 2007, ' Measurement of biocarbon in flue gases using 14C ', Radiocarbon, vol. 49, no. 2, pp. 325-330 . https://doi.org/10.1017/S0033822200042259
A preliminary investigation of the biocarbon fraction in carbon dioxide emissions of power plants using both fossil- and biobased fuels is presented. Calculation of the biocarbon fraction is based on radiocarbon content measured in power plant flue g
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268:1117-1119
Within the context of expanding use of biofuels in transport worldwide, a need has emerged to accurately determine biofuel proportions of fuels. In this study, the radiocarbon method by AMS has been used to study the fuel mixtures containing 2%, 5% a
Autor:
Högne Jungner, Mikko Tuomi, Hannu Fritze, Kristiina Karhu, Markku Oinonen, Jari Liski, Eloni Sonninen, Peter Spetz, Pekka Vanhala, Kai Hämäläinen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268:1067-1069
K. Hamalainen, H. Fritze, H. Jungner, K. arhu, M. Oinonen, E. Sonninen, P. Spetz, M. Tuomi, P. Vanhala, and J. Liski, 'Molecular sieve sampling of CO2 from decomposition of soil organic matter for AMS radiocarbon measurements', Nuclear Instruments an
Autor:
Antson, Olli, Hongisto, Mikko, Kai, Hämäläinen, Jungner, Högne, Knuuttila, Matti, Roine, Johannes, Räsänen, Jakko, Tormonen, Kauko, Tsupari, Eemeli
Publikováno v:
Antson, O, Hongisto, M, Kai, H, Jungner, H, Knuuttila, M, Roine, J, Räsänen, J, Tormonen, K & Tsupari, E 2007, Biohiilen mittaus savukaasusta hiili14 menetelmällä . in J Jussila (ed.), Ilmastonmuutoksen hillinnän liiketoimintamahdollisuudet : ClimBus-teknologiaohjelman katsaus 2007 . TEKES, Teknologiakatsaus, no. 211 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::c2fb42fd27b6801d4c91666558e8ecb3
https://cris.vtt.fi/en/publications/e42986e1-2e94-4c3f-8329-7c40051f92f2
https://cris.vtt.fi/en/publications/e42986e1-2e94-4c3f-8329-7c40051f92f2
Autor:
Altuntaş, Serkan1 serkan@yildiz.edu.tr, Dereli, Türkay2,3 dereli@gantep.edu.tr, Özşalap, Cengiz4 cozsalap@gmail.com
Publikováno v:
Journal of the Faculty of Engineering & Architecture of Gazi University / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi,. 2019, Vol. 34 Issue 4, p2187-2202. 15p.
Publikováno v:
Geophysical Research Abstracts. 2014, Vol. 16, p1-15054. 15054p.