Sökning: "Birch"

Visar resultat 1 - 5 av 284 uppsatser innehållade ordet Birch.

  1. 1. Utilisation of hardwood in cross-laminated timber - A numerical study on vibrations in floors

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Johannes Jonasson; Olle Karlsson; [2022]
    Nyckelord :hardwood; birch; beech; clt; cross-laminated timber; vibrations; floors; footfall; accelerations; Technology and Engineering;

    Sammanfattning : Cross-laminated timber (CLT) is an engineered wood product consisting of several layers of laminations bonded together with adhesives. In contrast to heavier construction materials, timber and other lightweight building materials are more prone to serviceability issues due to vibrations. LÄS MER

  2. 2. Ekoparkernas inverkan på långhornskalbaggar (Cerambycidae) : artrikedom, abundans och artsamhällen i jämförelse med kommersiellt brukad skogsmark

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Elias Skogqvist; Emil Andersson; [2022]
    Nyckelord :naturvård; aktiv restaurering; död ved; substrat; rödlista; unika arter;

    Sammanfattning : Several dead wood-dependent beetles need substrates which to great extent have been disfavored by intense forestry. Active and continuous restoration in Ecoparks may offer an option with intention to improve the habitation conditions. LÄS MER

  3. 3. Mixed Stand vs Monoculture : a Simulation Study Assessing Growth and Profitability of Norway spruce and Birch in Mixtures and Pure Stands

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Babatunde Dosumu; [2022]
    Nyckelord :N.spruce-birch stands; monoculture; thinning treatment; mixed forest;

    Sammanfattning : Picea abies L. Karst (N. spruce) monocultures dominate the forest landscape of southern Sweden due to their suitability for the prevalent site conditions, well established silviculture, and profitability. However, disturbances such as windthrow, bark beetle damage, and Heterobasidion root rot pose a risk to N. LÄS MER

  4. 4. Scots pine for fika : the role of local moose density in determining browsing damages to pine across commercial forests in Sweden

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Rebecca Partemi; [2022]
    Nyckelord :moose; Scots pine; browsing damage; forestry; Äbin;

    Sammanfattning : By browsing on young Scots pine (Pinus sylvestris), moose (Alces alces) can cause significant damage to commercial forests. The National Forest Agency monitors browsing damage and moose faecal pellet groups annually on pre-defined plots throughout Sweden. LÄS MER

  5. 5. Nio trähus ifrån 1200-talet - Hur har de kunnat bevaras?

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kulturvetenskaper (KV)

    Författare :Henrik Johansson; [2022]
    Nyckelord :authenticity; granary; heritage; interlocking joint; log house; Middle Ages; timber house; 13th century; timmerhus; knuttimring; knuttimrad stuga; liggtimmer; 1200-tal; timmerstuga; medeltiden; högmedeltiden; tidigmedeltid; Ingatorp; kyrkbod; autenticitet; spåntak; nävertak; takved; syllstensrad; Färsnäs; Fåsås; Zorns gammelgård; Zorngården; takytterskikt; trähus; väggspån; stolpunderrede; Älvdalen; dubbelkyrkhärbre; loftsboden; Dalarna; eldhus; härbre; kulturarv; kulturvård;

    Sammanfattning : The oldest profane log timber houses in Sweden dates back to the 13th century. This study investigates 9 of them. All of the houses are built with interlocking joints and the chosen timber are pine or fir. They are rather modest in size. LÄS MER