Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2008
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Adam ParuchAbstract
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Tatsiana Espevig Trygve S. Aamlid Arne Tronsmo Katarina Gundsø Jensen Bjørn Molteberg Linda Hjeljord Anne Marte Tronsmo Åge Susort Frank EngerAbstract
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The treatability of Scots pine (Pinus sylvestris) sapwood is ranked in the European standard EN 350-2 as class 1 (easy to treat), although huge differences in sapwood penetration exist. To obtain full sapwood penetration, process parameters have to be adjusted to the material most difficult to treat. It is therefore of importance to understand the factors that are responsible for penetration differences. Scots pine sapwood was investigated for anatomical differences influencing the ratio of filling (RoF) when treated with the wood modifying agent furfuryl alcohol. The database for the study was samples from two test series including Scots pine from Norway and Denmark. Within these experimental series each sample can be reassigned to its original position in the stem. The RoF for each sample was evaluated, and the variation in treatability within trees, between trees and between different stands was studied...
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2007
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Peder GjerdrumAbstract
Predicting sawn timber yield continues to be a challenging task, influenced by several stochastic processes. In this paper, a simulation model for main yield and sideboards in softwood sawing is presented. Predicting sawn timber yield usually involves either straight and notional mathematics, or empiric figures, both with inherent drawbacks. Most geometric models fail to take into consideration random variation: in log position when entering the saw, no log being perfectly straight, smooth and circular, sawing accuracy, etc., and therefore systematically overestimate the yield, in particular the sideboards...
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Patrik Flisberg Bertil Lidén Mikael RönnqvistAbstract
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River floods may cause considerable damage. Water management strategies intend tomoderate or mitigate the severe effects of extreme discharge events. In this context,techniques for the detection and attribution of changes is of crucial importance. Extremeflood events seem to occur more frequently in recent decades in central Europe.It is anticipated that climate change and weather regime shifts may contribute to this...