Change search
Refine search result
1 - 7 of 7
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Alfredsen, Gry
    et al.
    Norwegian Forest and Landscape Institute, Norway.
    Ringman, Rebecka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad. Technical University of Munich, Germany.
    Fossdal, Carl Gunnar
    Norwegian Forest and Landscape Institute, Norway.
    New insight regarding mode of action of brown rot decay of modified wood based on DNA and gene expression studies: A review2015In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 6, no 1, p. 5-7Article in journal (Refereed)
    Abstract [en]

    Modified wood shows resistance against wood deteriorating fungi, but the mechanisms are still not fully understood. The aim of this paper was to summarise the molecular studies performed on modified wood with regard to brown rot decay fungi. The DNA data showed that fungi are present inside the laboratory wood test samples already after two weeks of inoculation. Generally the fungal DNA content reflects mass loss and wood moisture content. The oxidative gene expression seems to be higher in modified wood than in untreated wood and it tend to increase during incubation. Based on the gene expression data we suggest that the hypothesis of lack of substrate recognition by the fungus should be rejected. In the reviewed studies, total wood moisture content in the samples was generally not low enough to inhibit fungal colonisation. Hence, moisture distribution within the wood should be studied more closely.

  • 2.
    Ehmcke, Gabriele
    et al.
    Technical University of Munich, Germany.
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut. Technical University of Munich, Germany.
    Koch, Gerald
    Thünen Institute of Wood Research, Germany.
    Richter, Klaus
    Technical University of Munich, Germany.
    Improvement of a method for topochemical investigations of degraded furfurylated wood2016In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 7, no 2, p. 96-101Article in journal (Refereed)
    Abstract [en]

    Today there is an increasing demand for wood protection systems which are based on low environmental impact technologies. The aim of this study was to improve a method for investigating furfurylated Pinus radiata, both in terms of the furfuryl alcohol polymerisation process in the wood cell wall and the detection of initial signs of brown rot degradation. It is an established theory today that brown rot degradation starts with lignin modification in the outermost part of the secondary cell wall and the combined middle lamella. We adapted a method (cellular UV microspectrophotometry, UMSP) which enables direct imaging of the lignin distribution and modification within individual cell wall layers. Furfurylated P. radiata, incubated with Postia placenta, were scanned with monochromatic UV-light at 280 nm. The results showed that USMP is a promising method to study furfurylated wood and early fungal degradation damages in the cell wall of furfurylated wood.

  • 3.
    Källbom, Susanna
    et al.
    KTH Royal Institute of Technology, Sweden.
    Rautkari, Lauri
    Aalto University, Finland.
    Wålinder, Magnus
    KTH Royal Institute of Technology, Sweden.
    Johansson, Leena-Sisko
    Aalto University, Finland.
    Campbell, Joseph
    Aalto University, Finland.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad. KTH Royal Institute of Technology, Sweden.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Laine, Kristiina
    KTH Royal Institute of Technology, Sweden.
    Water vapour sorption characteristics and surface chemical composition of thermally modified spruce2016In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 7, no 3, p. 116-123Article in journal (Refereed)
    Abstract [en]

    The objective of this work was to study the hygroscopicity and surface chemical composition of thermally modified (TM) spruce. An effort was also made to study if those features were influenced by a previous exposure to a significant increase in relative humidity (RH). TM and unmodified Norway spruce (Picea abies Karst) samples, both in solid and ground form, were prepared. Water vapour sorption characteristics of the ground samples were obtained by measuring sorption isotherms using a dynamic vapour sorption (DVS). The surface chemical composition of the solid samples, both acetone extracted and non-extracted, were analysed using X-ray photoelectron spectroscopy (XPS). The DVS analysis indicated that the TM wood exposed to the 75% RH revealed a decrease in isotherm hysteresis. The XPS analysis indicated a decrease of acetone extractable or volatile organic components and a relative increase of non-extractable components for the samples exposed to the increased RH condition.

  • 4.
    Oscarsson, Jan
    et al.
    SP- Sveriges Tekniska Forskningsinstitut, Trätek.
    Olsson, Anders
    Johansson, Marie
    School of Engineering.
    Enquist, Bertil
    Serrano, Erik
    Strength grading of narrow dimension Norway spruce side boards in the wet state using first axial resonance frequency2011In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 2, no 2, p. 108-114Article in journal (Refereed)
  • 5.
    Ringman, Rebecka
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Pilgård, Annica
    RISE - Research Institutes of Sweden, Built Environment, Building Technology. Technical University of Munich, Germany.
    Brischke, Christian
    University of Göttingen, Germany.
    Windeisen, Elizabeth
    Technical University of Munich, Germany.
    Richter, Klaus
    Technical University of Munich, Germany.
    Incipient brown rot decay in modified wood: patterns of mass loss, structural integrity, moisture and acetyl content in high resolution2017In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 8, no 3, p. 172-182Article in journal (Refereed)
    Abstract [en]

    The study of degradation and growth patterns of fungi in modified wood may increase the understanding of their mode of action and may lead to more accurate service-life predictions. The aim of this paper was to study the degradation and growth patterns of brown rot fungi in modified wood and to measure moisture content (MC), structural integrity and the acetyl content by frequent monitoring over 300 days. Mass loss (ML) in the modified wood materials increased slowly up to 3% for 50–100 days after which it flattened out and remained constant during the remainder of the test. Structural integrity and acetyl content were maintained in the modified wood materials and MC was lower compared to untreated wood throughout the decay test. ML results of untreated wood indicate that fungi in solid wood go through distinct phases; the degradation patterns in the modified wood materials were more difficult to interpret.

  • 6.
    Wålinder, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Larsson Brelid, Pia
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Long, Carl
    Dickerson, James
    Wettability of acetylated Southern yellow pine2013In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 4, no 3, p. 197-203Article in journal (Refereed)
  • 7.
    Östman, Birgit A.-L.
    et al.
    Linnaeus University, Sweden.
    Tsantaridis, L. D.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Durability of the reaction to fire performance of fire-retardant-treated wood products in exterior applications – a 10-year report2017In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 8, no 2, p. 94-100Article in journal (Refereed)
    Abstract [en]

    Fire retardants may considerably improve the reaction to fire properties of wood products, but the long term durabi­lity needs to be addressed. Several long term studies of fire retardant treated (FRT) wood products over time are presented. They are performed according to a European system based on earlier Nordic and North American systems and include accelerated aging according to different procedures and natural weathering up to 10 years. Main conclusions are:

    • products studied and used commercially

    • The reaction to fire properties of FRT wood may be maintained after accelerated and natural aging if the The hygroscopic properties are unchanged compared to untreated wood for most FRT wood retention levels are high enough, but several products lose most of their improved reaction to fire properties during weathering

    • Paint systems contribute considerably to weather protection and are usually needed to maintain the reaction to fire performance at exterior applications

1 - 7 of 7
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7