Sökning: "labbet"

Visar resultat 21 - 25 av 53 uppsatser innehållade ordet labbet.

  1. 21. Macroinvertebrate sampling in hydropeaking rivers : Testing Hester-Dendy samplers in a laboratory environment using different flow conditions

    Kandidat-uppsats, Karlstads universitet/Avdelningen för biologi

    Författare :Mattias Hansson; [2020]
    Nyckelord :hydropower; bioassessment; benthic macroinvertebrates; biotic indicator; vattenkraft; biologiska bedömningsgrunder; bentiska makroevertebrater; bioindikator;

    Sammanfattning : Degraded rivers and streams caused by disturbances have created a need for reliable tools to assess the ecological status of such ecosystems. Numerous methods and programs have been developed to assess ecological status using biological indicators, benthic macroinvertebrates are the most commonly used biotic indicator. LÄS MER

  3. 22. Downscaling and modelling of an ion-exchange chromatography column for purifying glucose solutions

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Viktor Geraldsson; [2020]
    Nyckelord :Ion-exchange; chromatography; glucose; purification; modelling; equilibrium isotherm; Matlab; chemical engineering; kemiteknik; Technology and Engineering; Chemistry;

    Sammanfattning : To utilize sugars as a feedstock for renewable industries, the feedstock often needs to be very pure. This is due to ionic species contaminating the sugar feedstock being potent catalyst poisons in many cases. To remove ionic species from the sugar feedstock, it is dissolved and purified using packed ion-exchange columns. LÄS MER

  4. 23. Identification of metabolite-protein interactions among enzymes of the Calvin Cycle in a CO2-fixing bacterium

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Emil Sporre; [2020]
    Nyckelord :Cupriavidus necator; chemolithoautotroph; limited proteolysis; Calvin Cycle; carbon fixation; proteomics; allosteric regulation; metabolite-protein interactions.;

    Sammanfattning : The Calvin – Benson cycle is the most widespread metabolic pathway capable of fixing CO2 in nature and a target of very high interest to metabolic engineers worldwide. In this study, 12 metabolites (ATP, AMP, NADP, NADPH, 2PG, 3PGA, FBP, RuBP, PEP, AKG, Ac-CoA and phenylalanine) were tested for protein – metabolite interactions against the proteome of Cupriavidus necator (previously Ralstonia eutropha) in the hopes of finding potential examples of allosteric regulation of the Calvin – Benson cycle. LÄS MER

  5. 24. Effect of perfluorooctane sulfonic acid (PFOS) on bovine early development in vitro

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Jonna Swahn; [2019]
    Nyckelord :bovine; embryo development; IVF; IVE; PFOS; Perfluorooctane sulfonic acid; perfluorooctanesulfonate; toxicity;

    Sammanfattning : Perfluoroktansulfonsyra (PFOS) är en kemikalie som har använts flitigt i produkter såsom matförpackningsmaterial, textilier, läder och brandskum. Trots att användningen av PFOS nu är förbjuden i många länder, EU inkluderat, finns det fortfarande kvar i miljön, djur och människor på grund av dess persistenta och bioackumulerande egenskaper. LÄS MER

  7. 25. Variations in hardness and microstructure in cartridge cases at annealing

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Richard Ohlsson; [2018]
    Nyckelord :Hardness; Microstructure; Cartridge cases; Annealing;

    Sammanfattning : The thesis work is performed at Norma Precision AB, a company that manufactures ammunition for hunting and competitive shooting. Two types of cases called 300 Winchester Magnum and 308 Winchester are examined on how their hardness were prior to and after the two annealing’s of the neck they experience during the manufacturing. LÄS MER