Search for dissertations about: "reaction wood"

Showing result 1 - 5 of 91 swedish dissertations containing the words reaction wood.

  2. 1. Investigating the Reaction Kinetics of Tropical Wood Biomass : A Prospect for Energy Recovery

    Author : Kehinde Oluoti; Högskolan i Borås; []
    Keywords : Wood; Pyrolysis; gasification; char; kinetic parameters; SEM-EDX; AAEM; Resursåtervinning; Resource Recovery;

    Abstract : The utilization of wood biomass for energy recovery purposes is a phenomenon that is increasingly attracting attentions from researchers, companies and countries all over the world. The effect of climate change as largely represented by global warming leading to glacier ice melting and an unprecedented rise in sea level is a worrisome development. READ MORE

  4. 2. Surface modification of birch and acetylated birch wood by silicone nanofilaments

    Author : Haiyan Yin; Magnus Wålinder; Agne Swerin; Andra Dédinaité; Jan Van den Bulcke; KTH; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acetylated wood; surface modification; superhydrophobicity; plastron; wetting; silicone nanofilaments; UV irradiation; mold resistance; blue stain.; Acetylerat trä; ytmodifiering; superhydrofobicitet; plastron; vätning; silikon-nanofilament; UV-bestrålning; mögelresistens; blånad.; Building Materials; Byggnadsmaterial;

    Abstract : The increasing awareness of sustainability motivates the development of building materials from renewable resources. The requirements of wood-based products with improved durability, for example, enhanced liquid repellence and UV and biological resistance, are still a challenge. READ MORE

  5. 3. Acetylation of Solid Wood. Wood Properties and Process Development

    Author : Pia Larsson Brelid; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; microwave heating; deformation; wood; hardness; adhesive bonding; power penetration depth; shear strength; delamination; acetylation; pH; bending strength; dielectric properties; stability;

    Abstract : The influence of acetylation on selected wood properties has been determined for Scandinavian pine and spruce wood, in order to predict the behavior of acetylated wood when it is used in different applications. Only minor differences in both bending strength and the modulus of elasticity were obtained for acetylated wood when compared with unmodified wood, and can, for practical applications, be considered unaltered. READ MORE

  6. 4. Friction in threaded fasteners : Influence of materials and tooling

    Author : Mayank Kumar; Sergei Glavatskih; Erik Persson; Ellen Bergseth; Ian Sherrington; Robert Wood; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; Coating; Surface topography; Tightening speed; Additive manufacturing; Tightening condition; Assembly tool; Material; Friktion; Ytbehandling; Yttopografi; Åtdragningshastighet; Additiv tillverkning; Åtdragningsförhållanden; Monteringsverktyg; Material; Machine Design; Maskinkonstruktion;

    Abstract : Threaded fasteners represent the most common type of machine element, with a unique function that facilitates ease of assembly and disassembly. This ease of disassembly allows machine parts to be reused, refurbished, and recycled. READ MORE

  7. 5. Surface-modified wood based on silicone nanofilaments for improved liquid repellence

    Author : Haiyan Yin; Magnus Wålinder; Agne Swerin; Andra Dédinaité; Lars Wadsö; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood; acetylated wood; surface modification; superamphiphobicity; superhydrophobicity; plastron; silicone nanofilaments; multicycle Wilhelmy plate method.; Trä; acetylerat trä; ytmodifiering; superamfifobicitet; superhydrofob; plastron; silikon-nanofilament; multicykel Wilhelmy-metod; Building Materials; Byggnadsmaterial;

    Abstract : The increasing awareness of sustainability motivates the development of building materials from renewable resources. The requirements of wood-based products with improved durability, for example, an enhanced liquid repellence, is still a challenge. READ MORE