Sökning: "Birch"

Visar resultat 16 - 20 av 322 uppsatser innehållade ordet Birch.

  1. 16. Legacy effects of temperature alterations on microbial resistance and resilience to drying and rewetting

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Franklin Lee Harris; [2023]
    Nyckelord :microbial ecology; soil; carbon dynamics; high latitudes; climate change; moisture stress; isotopes; respiration; trait based ecology; soil microbes; Environmental Changes in High Latitudes EnCHIL ; Earth and Environmental Sciences; Biology and Life Sciences;

    Sammanfattning : With warming in soils due to climate change, a series of secondary factors arise, which have multifaceted effects on soil microbial communities. Of these, alterations to soil moisture are among the most crucial to understanding how microbial functions will change in the face of climate change. LÄS MER

  3. 17. Björktimmer i svenskt skogsbruk : en studie över björkens potential i timmerproduktion

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

    Författare :Ebba Mölle; Olivia Fors; [2023]
    Nyckelord :björk; björkvirke; lövsågverk; sågverk;

    Sammanfattning : Björk är Sveriges vanligaste lövträd och utgör cirka 13 % av landets stående virkesförråd. Intresset för trädslaget har varierat historiskt men har med tiden ökat på grund av att till exempel certifieringskrav, klimatförändringar och skadegörare fordrar en större variation i trädslagsblandning. LÄS MER

  4. 18. Viscoelasticity of transparent wood-polymer biocomposites : Measuring the time-dependence of a delignified birch and poly(methyl methacrylate) composite’s mechanical properties, using digital image correlation

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Marine Jeanne Debouvry; [2023]
    Nyckelord :;

    Sammanfattning : The viscoelastic behavior of a delignified birch and poly(methyl methacrylate) (PMMA) composite was investigated, in an effort to learn more about the mechanical properties of transparent wood-polymer biocomposites. Tensile creep tests with constant load were performed for native wood, non-delignified, and delignified wood-polymer composites. LÄS MER

  5. 19. A Study on Lignin or Zein Based Hydrophobic Coatings

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Filippa Wentz; Sandra Olofsson; [2023]
    Nyckelord :Lignin; Zein; Hydrophobic Coating; Dispersion; Chemical engineering; Technology and Engineering;

    Sammanfattning : The two by-products lignin, from the paper industry, and zein, from starch production, have shown potential as hydrophobic barriers. Therefore, this study has aimed to produce and in-vestigate the hydrophobicity of lignin or zein dispersions coated on paper. LÄS MER

  7. 20. Experimental Investigation of Net-Tension Capacity in Birch Plywood Gusset Plates via Mechanical Connectors and Adhesives

    Kandidat-uppsats, KTH/Byggteknik och design

    Författare :Ibrahim Abd Ullah Alhamo; Farid Mobin; [2023]
    Nyckelord :;

    Sammanfattning : This thesis examines the mechanical behavior and performance of plywood connections withmechanical connectors and adhesive bonding to glulam. The aim is to provide insights into thecapacity and characteristics of these connections for well-founded design decisions in timberstructures. LÄS MER