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Jan Viljanen
Jan Viljanen
Postdoctoral Researcher
Verified email at tuni.fi
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Year
Microwave assisted laser-induced breakdown spectroscopy at ambient conditions
J Viljanen, Z Sun, ZT Alwahabi
Spectrochimica Acta Part B: Atomic Spectroscopy 118, 29-36, 2016
752016
Real-time release of Na, K and Ca during thermal conversion of biomass using quantitative microwave-assisted laser-induced breakdown spectroscopy
J Viljanen, H Zhao, Z Zhang, J Toivonen, ZT Alwahabi
Spectrochimica Acta Part B: Atomic Spectroscopy 149, 76-83, 2018
362018
Rate Constant and Thermochemistry for K + O2 + N2 = KO2 + N2
T Sorvajärvi, J Viljanen, J Toivonen, P Marshall, P Glarborg
The Journal of Physical Chemistry A 119 (14), 3329-3336, 2015
262015
In situ measurement of potassium release during biomass combustion using laser-induced breakdown spectroscopy: effect of silicate on potassium release
H Zhao, MA Wakil, J Viljanen, Q Song, Q Yao, CW Kwong, ZT Alwahabi
Energy & fuels 34 (3), 3262-3271, 2020
212020
Alkali sulfation during combustion of coal in a pilot scale facility using additives to alter the global sulfur to potassium and chlorine to potassium ratios
T Allgurén, J Viljanen, X Li, Y Wang, K Andersson, JOL Wendt
Proceedings of the Combustion Institute 38 (3), 4171-4178, 2021
202021
In situ laser measurement of oxygen concentration and flue gas temperature utilizing chemical reaction kinetics
J Viljanen, T Sorvajärvi, J Toivonen
Optics letters 42 (23), 4925-4928, 2017
182017
Optical assessment of the spatial variation in total soil carbon using laser-induced breakdown spectroscopy
V Dwivedi, J Ahokas, J Viljanen, P Ryczkowski, NJ Shurpali, HR Bhattarai, ...
Geoderma 436, 116550, 2023
132023
Alkali Monitoring of Industrial Process Gas by Surface Ionization─Calibration, Assessment, and Comparison to In Situ Laser Diagnostics
D Gall, J Viljanen, I Gogolev, T Allgurén, K Andersson
Energy & Fuels 35 (24), 20160-20171, 2021
112021
In-situ monitoring of transient gas phase K–Cl–S chemistry in a pilot-scale combustor
J Viljanen, T Allgurén, Y Wang, X Li, J Toivonen, K Andersson, JOL Wendt
Proceedings of the Combustion Institute 38 (1), 1823-1831, 2021
92021
Phosphorus quantification in soil using LIBS assisted by laser-induced fluorescence
S Soni, J Viljanen, R Uusitalo, P Veis
Heliyon 9 (6), 2023
82023
Analysis of ilmenite slag using laser-induced breakdown spectroscopy
AK Gupta, M Aula, E Negre, J Viljanen, H Pauna, P Mäkelä, J Toivonen, ...
Minerals 10 (10), 855, 2020
72020
Sequential collinear photofragmentation and atomic absorption spectroscopy for online laser monitoring of triatomic metal species
J Viljanen, K Kalmankoski, V Contreras, JK Sarin, T Sorvajärvi, ...
Sensors 20 (2), 533, 2020
62020
Detection of gaseous species during KCl‐induced high‐temperature corrosion by the means of CPFAAS and CI‐APi‐TOF
J Lehmusto, M Olin, J Viljanen, J Kalliokoski, F Mylläri, J Toivonen, ...
Materials and Corrosion 71 (2), 222-231, 2020
52020
Isotope Detection in Microwave-Assisted Laser-Induced Plasma
AM Alamri, J Viljanen, P Kwong, ZT Alwahabi
Plasma 6 (3), 466-477, 2023
42023
Characterizing plastics containing brominated flame retardants with combined LIBS and Raman spectroscopy
T Sormunen, J Viljanen, J Havisto, K Korpijärvi, I Rytöluoto, ...
Journal of Physics: Conference Series 2346 (1), 012014, 2022
42022
Online Laser Diagnostics for High-Temperature Chemistry in Biomass Combustion
J Viljanen
Tampere, Finland: Tampere University, 2019
32019
Detection of alkali path in a pilot-scale combustor using laser spectroscopy and surface ionization—From vapor to particles
J Viljanen, D Gall, I Gogolev, T Allgurén, K Andersson
Fuel 343, 127900, 2023
22023
Online laser monitoring of metal chloride and oxygen concentration using collinear photofragmentation and atomic absorption spectroscopy
J Viljanen, T Sorvajärvi, J Toivonen
1
Soil Carbon Monitoring Using Laser-Induced Breakdown Spectroscopy
J Ahokas, J Viljanen, J Muhonen
2024
Total Soil Phosphorus Detection Using Laser-Induced Fluorescence-Assisted Laser-Induced Breakdown Spectroscopy
S Soni, J Viljanen, R Uusitalo, P Veis
Applied Industrial Spectroscopy, AM2A. 3, 2023
2023
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