H
Heiko Thoemen
Researcher at Bern University of Applied Sciences
Publications - 15
Citations - 179
Heiko Thoemen is an academic researcher from Bern University of Applied Sciences. The author has contributed to research in topics: Urea-formaldehyde & Ultrasonic testing. The author has an hindex of 6, co-authored 15 publications receiving 118 citations.
Papers
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Journal ArticleDOI
Effects of raw materials and process parameters on the physical and mechanical properties of flat pressed WPC panels
Jan T. Benthien,Heiko Thoemen +1 more
TL;DR: In this article, the main influencing parameters on sheets made of wood flour (WF) imbedded in a polypropylene matrix were identified and analyzed for flat pressing flat panels.
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Preferences of furniture manufacturers for using lightweight wood-based panels as eco-friendly products
TL;DR: In this paper, the perceptions of Iranian furniture manufacturers were evaluated by means of ANP-based multi-type questionnaires, regarding the conditions and requisite features of lightweight panels in furniture manufacturing.
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Effects of panel density and particle type on the ultrasonic transmission through wood-based panels
TL;DR: In this article, the physical effects of air-coupled ultrasonic testing and analyses the influences of panel density and particle type on the transmitted ultrasonic signal were carried out for a broad range of wood-based panels.
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Utilization of inorganic mineral filler material as partial replacement for wood fiber in medium density fiberboard (MDF) and its effect on material properties
Tomasz Ozyhar,Tobias Depnering,Cathy J. Ridgway,Matthias Welker,Joachim Schoelkopf,Ingo Mayer,Heiko Thoemen +6 more
TL;DR: In this paper, the influence of inorganic mineral filler addition on the material properties of medium density fiberboard (MDF) was investigated at varying densities, and the results demonstrated that the addition of mineral filler to MDF up to levels of 10 wt.% only had a small effect, if at all, on material properties, such as elastic and strength properties, thickness swelling, permeability, as well as formaldehyde and volatile organic compound emissions.
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Observation of interference effects in air-coupled ultrasonic inspection of wood-based panels
Ulrich Hilbers,Jürg Neuenschwander,Jörg Hasener,Sergio J. Sanabria,Peter Niemz,Heiko Thoemen +5 more
TL;DR: In this paper, the authors investigated the interference effects of ultrasonic waves on wood-based panels and verified the results with a mathematical model that explains the interferences due to multiple reflections inside the tested panels.