Search for dissertations about: "Bismuth test"

Found 4 swedish dissertations containing the words Bismuth test.

  1. 1. Importance of bacterial hydrogen sulfide in the pathogenesis of periodontal diseases

    University dissertation from Göteborg : University of Gothenburg. Sahlgrenska Academy, Institute of Odontology

    Author : Amina Basic; Göteborgs universitet.; Gothenburg University.; [2017]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hydrogen sulfide; Periodontitis; Gingivitis; IL-1β; IL-18; NLRP3 inflammasome; Oral microbiota; Fusobacterium spp.; Bismuth test; L-cysteine;

    Abstract : Hydrogen sulfide (H2S) is one of many end-products of the proteolytic activities in the subgingival microbiota in patients with periodontal diseases, such as gingivitis and periodontitis. Although H2S is generally regarded as toxic, the mechanisms that underlie its production and its effects on human cells and tissues are poorly understood. READ MORE

  2. 2. Tribological characteristics of some multi-layered Pb-free engine bearing materials

    University dissertation from Luleå : Luleå University of Technology

    Author : Daniel Woldegebriel Gebretsadik; Arto Lehtovaara; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Abstract : Lead (Pb) containing alloys such as white metals and Cu-Pb-Sn (lining) with Pb-based overlay plating have been extensively used as materials for internal combustion engine bearings during the last several decades. However, owing to environmental and health concerns, the use of Pb containing materials in automotive engine components is being restricted. READ MORE

  3. 3. Validation and Application of CFD to Safety-Related Phenomena in Lead-Cooled Fast Reactors

    University dissertation from KTH Royal Institute of Technology

    Author : Marti Jeltsov; Pavel Kudinov; Walter Villanueva; Dmitry Grishchenko; Afaque Shams; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Verification; Validation; Calibration; Sensitivity Analysis; Uncertainty Analysis; CFD; STH; Code Coupling; Liquid Lead Coolant; LFR; SGTL R; Bubble transport; Core voiding; Seismic Sloshing; Melting Solidification; Physics; Fysik;

    Abstract : Carbon-free nuclear power production can help to relieve the increasing energy demand in the world. New generation reactors with improved safety, sustainability, reliability, economy and security are being developed. Lead-cooled fast reactor (LFR) is one of them. READ MORE

  4. 4. Ultra high-pressure compaction of powder

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Sven Berg; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : Sintering at high-pressure improves the properties of the material, either through new sintering aids becoming available or through improving intergranular bonding. This gives the manufactured products potential advantages like faster cut rates, and more precise and cleaner production methods that add up to cost efficiency and competitive edge. READ MORE