Sökning: "size characterisation"

Visar resultat 21 - 25 av 144 avhandlingar innehållade orden size characterisation.

  1. 21. Characterisation of pollutants in stormwater treatment facilities

    Författare :Kristin Karlsson; Davis Butler; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : The overall objective of this thesis is to increase the knowledge of both the pollutants within stormwater treatment facilities and the maintenance of these facilities. This objective has been achieved by studying water and sediment with respect to metal concentrations, fractionation, and toxicity from ponds, sedimentation tanks, and gully pots with different catchment characteristics as well as from the sediment removal process. LÄS MER

  3. 22. Functional screening and molecular characterisation of small proteins

    Författare :Dörte Schlesinger; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Proteins are one of the main drivers of cellular function. Most known proteins constitute various hundred amino acids, but growing evidence suggests that additionally thousands of short open reading frames (sORFs) are translated, posing the exciting possibility that many small unknown proteins are yet to be discovered. LÄS MER

  4. 23. Mechanical Pulp Based Nano-ligno-cellulose : Production, Characterisation and their Effect on Paper Properties

    Författare :Sinke Henshaw Osong; Per Engstrand; Sven Norgren; Kristin Syverud; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mechanical pulp; thermo-mechanical pulp; chemi-thermomechanical pulp; fractionation; fines; homogenisation; nanocellulose; nano-ligno-cellulose NLC ; handsheets; strength properties; crill;

    Sammanfattning : Almost all research on biorefinery concepts are based on chemical pulping processes and ways of utilising lignin, hemicelluloses and extractives as well as a part of the remaining cellulose for production of nano materials in order to create more valuable products than today. Within the Forest as a Resource (FORE) research program at FSCN we are utilising the whole chain of unit processes from forestry to final products as paper and board, where the pulping process research focus on high yield process as TMP and CTMP. LÄS MER

  5. 24. Time-resolved optical characterisation of defect-rich semiconductors

    Författare :Andreas Gaarder; KTH; []
    Nyckelord :;

    Sammanfattning : This thesis explores carrier trapping and recombination indefect-rich semiconductors, and methods for materialcharacterisation. Optimal manufacturing parameters areestablished for materials to be used in the ultrafast devicesneeded for future telecommunication applications. LÄS MER

  7. 25. Characterisation of kraft pulps by size-exclusion chromatography and kraft lignin samples by capillary zone electrophoresis

    Författare :Elisabeth Sjöholm; KTH; []
    Nyckelord :;

    Sammanfattning : In the present thesis two analytical methods forcharacterisation of underivatised pulp and lignin samplesobtained from kraft pulping of hardwood and softwood areevaluated. The first method is the use of lithiumchloride/N,N-dimethylacetamide (LiCl/DMAc) for dissolution andsize-exclusion chromatography (SEC) of pulps. LÄS MER