M. Kärkkäinen

University of Oulu — Finland

Engineering · Physical Sciences

17h-index786citations50works0.02yr avg
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Research Topics

Microwave Engineering and Waveguides(20), Catalytic Processes in Materials Science(12), Electromagnetic Simulation and Numerical Methods(11), Catalysis and Hydrodesulfurization Studies(11), Radio Frequency Integrated Circuit Design(9)

Publications50 total

Characterization of Pt-based oxidation catalyst – Deactivated simultaneously by sulfur and phosphorus
Journal of Catalysis·2021· 15 citedOpen Access
The combined effects of Sr additions and heat treatment on the microstructure and mechanical properties of high pressure die cast A383 alloy
Materials Science and Engineering A·2019· 24 cited
Regeneration of sulfur-poisoned Pd-based catalyst for natural gas oxidation
Journal of Catalysis·2018· 59 citedOpen Access
The Combined Effects of Sr Additions and Heat Treatment on the Microstructure and Mechanical Properties of High Pressure Die Cast A383 Alloy
˜The œminerals, metals & materials series·2018· 2 cited
Deactivation of Pt/SiO2-ZrO2 diesel oxidation catalysts by sulphur, phosphorus and their combinations
Applied Catalysis B: Environmental·2017· 23 cited
Electron microscopic studies of natural gas oxidation catalyst – Effects of thermally accelerated aging on catalyst microstructure
Journal of Catalysis·2017· 16 cited
Study on sulfur deactivation of catalysts for DMDS oxidation
Applied Catalysis B: Environmental·2017· 33 citedOpen Access
Operational excellence evaluation model for SMEs and regional findings
2016· 2 cited
The Impact of Sulphur, Phosphorus and their Co-effect on Pt/SiO2–ZrO2 Diesel Oxidation Catalysts
Topics in Catalysis·2016· 6 cited
The Influence of Phosphorus Exposure on a Natural-Gas-Oxidation Catalyst
Topics in Catalysis·2016· 5 cited
Operational excellence driven by process maturity reviews: A case study of the ABB corporation
2015· 12 cited
Accelerated deactivation studies of the natural-gas oxidation catalyst—Verifying the role of sulfur and elevated temperature in catalyst aging
Applied Catalysis B: Environmental·2015· 33 citedOpen Access
Modeling and applications of millimeter-wave slow-wave coplanar coupled lines in CMOS
2015· 5 cited
The Effect of Phosphorus Exposure on Diesel Oxidation Catalysts—Part I: Activity Measurements, Elementary and Surface Analyses
Topics in Catalysis·2015· 19 cited
The Effect of Phosphorus Exposure on Diesel Oxidation Catalysts—Part II: Characterization of Structural Changes by Transmission Electron Microscopy
Topics in Catalysis·2015· 13 cited
Deactivation of Diesel Oxidation Catalysts by Sulphur in Laboratory and Engine-Bench Scale Aging
Topics in Catalysis·2013· 17 cited
Structural Characteristics of Natural-Gas-Vehicle-Aged Oxidation Catalyst
Topics in Catalysis·2013· 27 cited
Aikuissosiaalityön asiakkaiden kokemuksia ja toiveita sosiaalityön tuesta ja avusta ja yhteistyöstä sosiaalityöntekijän kanssa
Työväentutkimus Vuosikirja·2011Open Access
W-band CMOS amplifiers achieving +10dBm saturated output oower and 7.5dB NF
2009· 8 cited
Metamorphic HEMT amplifier for K- and Ka-band applications
2006· 1 cited
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Frequent Co-authors

Riitta L. Keiski(12), Mari Honkanen(11), Mika Huuhtanen(11), Kauko Kallinen(11), Minnamari Vippola(11), Mikko Varonen(9), Pekka Kangaslahti(9), Jouko Lahtinen(9), Sergei Tretyakov(8), Tanja Kolli(7), Olli Heikkinen(7), K. Halonen(6), J. Riska(5), V. Porra(5), Hua Jiang(4), T. Lepistö(4), Stanislav I. Maslovski(4), Ari Väliheikki(4), Pekka Ikonen(4), Ville Viitanen(3)