Sökning: "Needles"

Visar resultat 1 - 5 av 52 avhandlingar innehållade ordet Needles.

  1. 1. Extraction of logging residues for bioenergy effects of operational methods on fuel quality and biomass losses in the forest

    Detta är en avhandling från Växjö : Linnaeus University Press

    Författare :Bengt Nilsson; Linnéuniversitetet.; [2016]
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Forest fuel; Storage; Fraction composition; Needles; Defoliation; Moisture content; Nutrients; Nitrogen; Norway spruce; Picea abies; Skogsbränsle; Lagring; Fraktionsfördelning; Barr; Avbarrning; Fukthalt; Näringsämnen; Kväve; Gran; Picea abies; Forestry and Wood Technology; Skog och träteknik;

    Sammanfattning : Wood products play a key role in the transformation to a more sustainable society based on renewable bio-based resources, together with the positive effects on climate mitigation by replacing fossil fuels. However, to increase the use of forest fuel in practice it is important to understand the effects of handling and storage on its quality and removal of nutrients from the forest. LÄS MER

  2. 2. Effects of methyl jasmonate on chemical defenses of conifer seedlings in relation to feeding by Hylobius abietis

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Lina Lundborg; KTH.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Pinaceae; Pinus pinaster; Pinus radiata; Pinus sylvestris; Picea abies; Thaumetopoea pityocampa; Hylobius abietis; Needles; Phloem; Feeding; Vaccination; Priming; Methyl jasmonate; Aromatics; Phenolics; Monoterpenes; Pinaceae; Pinus pinaster; Pinus radiata; Pinus sylvestris; Picea abies; Thaumetopoea pityocampa; Hylobius abietis; Barr; Floem; Ätning; Vaccinering; Metyljasmonat; Aromater; Fenoler; Monoterpener; Kemi; Chemistry;

    Sammanfattning : The chemical elicitor methyl jasmonate (MeJA) could replace insecticides in Europe and Asia for protection of young conifers against the pine weevil (Hylobius abietis). This thesis mainly focuses on the effects of MeJA treatment on chemical defenses of conifers from seedling batches with documented field resistance. LÄS MER

  3. 3. Airborne lipophilic pollutants in pine needles

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Henrik Kylin; Stockholms universitet.; [1994]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Föroreningar; Miljö; Luftföroreningar; Ekotoxikologi;

    Sammanfattning : .... LÄS MER

  4. 4. Reducing injection pain in children and adolescents with type 1 diabetes : Studies on indwelling catheters and injection needles

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Ragnar Hanås; Linköpings universitet.; Linköpings universitet.; [2001]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICINE; MEDICIN;

    Sammanfattning : Insulin injections can be painful for many children, especially when using multiple daily injections. To reduce this procedural pain we in 1985 designed ao indwelling catheter for subcutaneous use when injecting insulin. This catheter has been well accepted by our patients. LÄS MER

  5. 5. Passive sampling of organic pollutants in air : applicability of thick bed diffusive samplers and pine needles

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Erik Nordstrand; Stockholms universitet.; [1995]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER