Search for dissertations about: "Norway spruce"

Showing result 1 - 5 of 225 swedish dissertations containing the words Norway spruce.

  1. 1. Coated Norway Spruce : Influence of Wood Characteristics on Water Sorption and Coating Durability

    Author : Tinh Sjökvist; Åsa Blom; Carsten Mai; Linnéuniversitetet; []
    Keywords : AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Heartwood; Sapwood; Wood extractives; Moisture content; Paint; Alkyd; Acrylic; Linseed oil; Calcimine paint; Mould; Fungi; Algae; Weathering; Forestry and Wood Technology; Skog och träteknik;

    Abstract : Wood used outdoors is often degraded and discoloured by microorganisms as a natural part of its life cycle, particularly when exposed to high levels of moisture for prolonged times. In this case, the application of a coating (i.e. paint) is an option for increasing the service life of the wood. READ MORE

  2. 2. Norway spruce heartwood : properties related to outdoor use

    Author : Karin Sandberg; Luleå tekniska universitet; []

    Abstract : Degradation of wood is a complex problem dependent on many parameters, but especially the presence of excessive amounts of water causes many problems.The objective of this work was to study the influence of various parameters on water absorption and desorption in Norway spruce (Picea abies (L.) Karst). READ MORE

  3. 3. Norway spruce heartwood : properties related to outdoor use

    Author : Karin Sandberg; RISE; []
    Keywords : ;

    Abstract : .... READ MORE

  4. 4. Spiral Grain in Norway Spruce

    Author : Harald Säll; Thomas Thörnqvist; Rolf Birkeland; Växjö universitet; []
    Keywords : Spiral grain angle; drying deformation; warp; wood quality; Norway spruce; Picea abies; FORESTRY; AGRICULTURAL SCIENCES and LANDSCAPE PLANNING; SKOGS- och JORDBRUKSVETENSKAP samt LANDSKAPSPLANERING;

    Abstract : Wood is a major construction material that is used in many contexts, and for different purposes. Serious problems may arise, however, when moisture related deformations as twist occur in wood used in different types of building structures, joinery and furniture. READ MORE

  5. 5. A forest dark : an evolutionary history of Norway spruce

    Author : Alexis R. Sullivan; Xiao-Ru Wang; Nathaniel Street; María Rosario García-Gil; Bengt Oxelman; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; phylogenetics; genome assembly; recombination; Picea; hybridization; mitogenome; Norway spruce; phylogeography; phylogenetic networks; plastome;

    Abstract : Embedded within the relationships among species is a dense forest of gene trees, each with a potentially unique and discordant history. Such widespread genealogical heterogeneity is expected, but embracing this hierarchy of discordance while reconstructing the histories of populations and species remains a major challenge. READ MORE