Sökning: "suarez"

Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet suarez.

  1. 1. Microbial communities in anammox and nitrifying biofilms

    Författare :Carolina Suarez; Göteborgs universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; biofilms; AOB; partial nitritation anammox; nitrification; wastewater;

    Sammanfattning : Excess of nitrogen in water bodies causes eutrophication. One important source of nitrogen is the effluent from wastewater treatment plants (WWTPs). Nitrogen in wastewater is most commonly removed by nitrification-denitrification. LÄS MER

  3. 2. Parameters affecting the functionality of additives in lubricated contacts : effect of base oil polarity

    Författare :Aldara Naveira Suarez; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : Traditionally rolling contact fatigue observed in bearing field applications was subsurface initiated. However, despite the improvement of steel properties, some factors such as downsizing in bearing design, extreme loading of the bearings as well as demanding application conditions (start up-stop cycles) have led to an increase on the cases of surface damage related to surface initiated fatigue, that comes basically from surface distress. LÄS MER

  4. 3. The behaviour of antiwear additives in lubricated rolling-sliding contacts

    Författare :Aldara Naveira Suarez; Nicholas D. Spencer; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : Traditionally rolling contact fatigue observed in bearing field applications was subsurface initiated. However, despite an improvement in the properties of steel, some factors such as downsizing in bearing design, extreme loading of bearings as well as demanding application conditions (start-stop cycles) have led to an increase in cases of surface damage related to surface initiated fatigue, which essentially comes from surface distress. LÄS MER

  5. 4. Mechanical Characterization of Heterogeneous Brittle Materials

    Författare :Laura Suarez; Pär Jonsén; Jörgen Kajberg; Simon Larsson; Lars-Olof Nordin; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Comminution is one of the highest energy-consuming processes in the mining and mineral processing industry by consuming around 2% of the global generated energy with an overall efficiency of 1-3%. Different approaches to the optimization of processes have been developed, but there is still room for improvement. LÄS MER

  7. 5. Targeting Mycobacterium tuberculosis Proteins: Structure and Function Studies of Five Essential Proteins

    Författare :Adrian Suarez Covarrubias; Sherry Mowbray; Torsten Unge; Pedro Alzari; Uppsala universitet; []
    Nyckelord :Cell and molecular biology; carbonic anhydrase; threonine synthase; FAS II; Rv0636; Rv1284; Rv1295; Rv3588c; Rv3778c; X-ray crystallography; Cell- och molekylärbiologi; Mycobacterium tuberculosis;

    Sammanfattning : This thesis describes the target selection, cloning, expression, purification, crystallization, structure and biochemical characterization of five essential Mycobacterium tuberculosis (Mtb) proteins. The search for drugs against the causal agent of tuberculosis is urgently needed and the targeting of essential genes is necessary to fulfill this goal. LÄS MER