Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2000
Forfattere
Simen GjølsjøSammendrag
Det er ikke registrert sammendrag
Sammendrag
The present investigation deals with the properties of resonance wood destined for the production of musical instruments and with the methods for the determination of resonance wood quality. At the same time there are stated the range of values for the dynamic modulus of elasticity, for the speed of sound transmission and for the density of wood. The demands regarding dimension and growth characteristics of resonance wood are explained insisting first of all on pure subjective and visual criteria. The grading rules, existing only in a few regions in Germany, show that forestry is sensitized to this high value timber assortment only to a very small extent. With the Lucchimeter measuring method (elasticity tester) and the stress wave nondestructive evaluation technique spruce (Picea abies) and fir (Abies alba) wood panels are investigated which are destined for the production of guitars. The methods used as well as the results of measurement are compared with another. Furthermore the quantity of sales of resonance wood is presented after survey at the state owned forest management in Germany. The established small quantity of existing resonance wood is attributed to the sales of resonance wood not mentioned explicitly or described in detail. All in all the amount of resonance wood is supposed to be higher.
1999
Forfattere
Gunnar Ogner Torild Wickstrøm Gabriele Remedios Svein Gjelsvik Guro Randem Hensel Jan Erik Jacobsen Monica Fongen Espen Skretting Britt SørlieSammendrag
This article describes in brief the chemical analytical program at The Norwegian Forest Research Institute in 2000. Due to a continuous effort to develop and to improve analytical methods to meet the demands of forest research in Norway, the four earlier summaries of our methods (Ogner et al. 1975, 1977, 1984, 1991) are now outdated. This article replaces the previous ones and describes only those procedures currently being used for the analysis of water, plant and soil samples
Forfattere
Simen GjølsjøSammendrag
Det er ikke registrert sammendrag
1998
Sammendrag
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Sammendrag
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1997
Sammendrag
Det er ikke registrert sammendrag
1996
Forfattere
Simen GjølsjøSammendrag
Det er ikke registrert sammendrag
Forfattere
Lone RossSammendrag
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Sammendrag
Det er ikke registrert sammendrag