Sökning: "timber cutting"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden timber cutting.

  1. 1. Skog för export : skogsarbete, teknik och försörjning i Lule älvdal 1870-1970

    Författare :Nils-Gustav Lundgren; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Forestry work; technology; determination of income; regional economics;

    Sammanfattning : The forestry industry played an important role in the industrialization of the Swedish economy in the late 19th century. The aim of this study is to deed with the determination of income and wages in the forestry regions where the sawmills and pulp industries found their raw material supplies. LÄS MER

  3. 2. On wear of wood-cutting tools : Tool materials, wear mechanisms and modelling

    Författare :Johan Nordström; []
    Nyckelord :Tool material; Wood cutting; Wear; Modelling;

    Sammanfattning : Bandsaw blades are commonly used in the sawmill industry for timber cutting. The saw teeth are gradually worn during cutting and will finally cause unacceptable surface roughness and dimensional deviations on the sawn wood product. Maintenance by re-sharpening of the saw teeth is therefore necessary after a certain time of sawing. LÄS MER

  4. 3. Architecturally Innovative Multi-Storey Timber Buildings : Methodology and Design

    Författare :Axel Kaiser; Andreas Falk; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Sammanfattning : This investigation applies architectural ideas of mass-customised difference and repetition, and tests them within the engineering paradigm of very tall timber buildings – taller than have ever been erected in the history of architecture. According to Edward Glaeser’s book, Triumph of the City, the cheapest way to deliver new housing (at least in the USA) is in theform of mass-produced two-storey homes, which typically cost only about $84 per square foot to erect. LÄS MER

  5. 4. Samhävd och rågång. Om egendomsrelationer, ägoskiften och marknadsintegration i en värmländsk skogsbygd 1630-1750

    Författare :Staffan Granér; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; property rights; entitlements; common-rights; modernisation; property relations; enclosure; land consolidation; open fields; institutional change; laws; legal practice; court rolls; iron mills; market integration; field-system; agrarian history; forest history; Värmland; swiddening; charcoal-burning; timber cutting;

    Sammanfattning : THY NEIGHBOURS PROPERTY. Property Relations, Enclosures and Market Integration in a Forest District of Central Sweden 1630-1750. Written in Swedish with a Summary in English. The development towards more exclusive and private agrarian property rights has been considered one of the most important and crucial aspects of the modernisation process. LÄS MER

  7. 5. Investigations on the Serviceability Limit State of Dowel-Type Timber Connections

    Författare :Michael Dorn; de Borst Karin; Vienna University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; timber engineering; dowel-type connection; experiments; simualations; Servieability Limit State; contact behavior; Byggteknik; Civil engineering;

    Sammanfattning : Dowel-type steel-to-timber connections are commonly used to transfer a large range of loads. Although they are simple to produce and assemble, the load-carrying behavior and the local stress and strain distribution within the connection area are highly complex. LÄS MER