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Visar resultat 16 - 20 av 163 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. Improving trace metal characterisation of ore deposits through multi-modal, multi-scale, and multi-dimensional micro-analysis

    Författare :Mathis Warlo; Christina Wanhainen; Glenn Bark; Alan R Butcher; Nigel Cook; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ore Geology; Malmgeologi;

    Sammanfattning : The variety and amount of metals consumed by human society is ever increasing. Meeting the demand requires exploration for new ore deposits, efficient production of active mines, and improved efficiency in metal recycling. A key element in mining-related enterprises is the improvement of ore characterisation. LÄS MER

  3. 17. Microbial strategies for deconstruction of bark components

    Författare :Amanda Sörensen Ristinmaa; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; extractives; fungi; microbial communities; polysaccharides; Bark; proteomics; enzymes; bacteria; yeast;

    Sammanfattning : Bark is the outermost part of a tree, and it is a protective layer against external threats such as microorganisms and environmental stressors. Bark consists of various polymers including lignin, cellulose, hemicellulose, and it also contains a large fraction of compounds known as extractives. LÄS MER

  4. 18. Spruce Bark Polysaccharides : Extraction, Characterization and Valorization

    Författare :Myriam Le Normand; Monica Ek; Carlos Pascoal Neto; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  5. 19. Some fundamental aspects on superheated steam drying of bark and wood chips

    Författare :Hans Björk; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; equilibrium moisture content; Dent model; organic compounds; drying; wood; superheated steam; bark;

    Sammanfattning : .... LÄS MER

  7. 20. Implications of feedstock diversity on forest-based ethanol production

    Författare :Balazs Franko; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ethanol; Lignocellulose; Softwood; Spruce; Bark; Forest residues; Steam pretreatment; Enzymatic hydrolysis;

    Sammanfattning : The utilization of lignocellulosic biomass to produce biofuels, such as bioethanol, has the potential to provide a sustainable alternative to fossil fuels, and thus mitigate greenhouse gas emissions from the transportation sector.Forest biomass is expected to be a significant source of such biomass, as it can serve as an abundant and sustainable feedstock for bioethanol production. LÄS MER