Sökning: "Wood fibre and forest products"

Visar resultat 1 - 5 av 19 avhandlingar innehållade orden Wood fibre and forest products.

1. 1. Birch Stem and Wood Traits in Genetic and Silviculture Trials in Southern Sweden

   Författare :Grace Jones; Stergios Adamopoulos; Mateusz Liziniewicz; Mikael Andersson; Sheikh Ali Ahmed; Erkki Verkasalo; Linnéuniversitetet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; acoustic velocity; Betula spp.; dynamic MOE; genetic parameters; grain angle; hardwood; Itrax densitometry; mixed forests; non-destructive testing; stem form; akustisk velocitet; Betula spp.; blandskog; densitometri; genetiska parametrar; icke destruktiva metoder; Itrax; lövträ; skogsodling; stamkvalitet; vedsegenskaper; Forestry and Wood Technology; Skog och träteknik;

   Sammanfattning : Swedish tree species of birch (silver: Betula pendula and downy: B. pubescens) are often neglected during forest management activities, resulting in low value logs. This thesis investigated birch stem characteristics and wood properties important for solid wood products, in genetics and management trials in southern Sweden. LÄS MER

3. 2. Mechanical processing for improved products made from Swedish hardwood

   Författare :Jimmy Johansson; Dick Sandberg; František Hapla; Växjö universitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; capillarity; capillary transport; wood products; customer requirements; ecoeffectiveness; ; sawing pattern; star-sawing; the PrimWood Method; timber products; volume yield; water transport; Wood fibre and forest products; Träfiber- och virkeslära;

   Sammanfattning : Swedish hardwood is today used in the energy, pulp and mechanical hardwood industries. Only very small volumes of Swedish hardwood are, however, consumed by the mechanical industry that normally pays the highest timber price. LÄS MER

4. 3. Micromechanics of softwoods in the transverse plane : effects on cell and annual ring scales

   Författare :Carl S. Modén; Lars Berglund; Per Johan Gustafsson; KTH; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Wood fibre and forest products; Träfiber- och virkeslära; Engineering mechanics; Teknisk mekanik; Biomaterials; Biomaterial;

   Sammanfattning : Transverse mechanical properties of wood are important in many practial applications and an interesting scientific subject. A very low transverse shear modulus has been identified in spruce, which causes large strain concentrations in wood structures. LÄS MER

5. 4. Heterologous expression, characterization and applications of carbohydrate active enzymes and binding modules

   Författare :Åsa Kallas; Tuula T. Teeri; Edward A. Bayer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Populus; xyloglucan endotransglycosylase; carbohydrate binding modules; endo- 1; 4 -b-xylanase; Escherichia coli; Pichia pastoris; N-glycosylation; fiber analysis; Bioengineering; Bioteknik; Wood fibre and forest products; Träfiber- och virkeslära;

   Sammanfattning : Wood and wood products are of great economical and environmental importance, both in Sweden and globally. Biotechnology can be used both for achieving raw material of improved quality and for industrial processes such as biobleaching. LÄS MER

7. 5. Characterisation of wood-fibre—based materials using image analysis

   Författare :Erik Wernersson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Wood fibres are the main constituent of paper and are also used to alter properties of plastics in wood-fibre—based composite materials. The manufacturing of these materials involves numerous parameters that determine the quality of the products. LÄS MER