Sökning: "Bismuth test"
Hittade 4 avhandlingar innehållade orden Bismuth test.
1. Importance of bacterial hydrogen sulfide in the pathogenesis of periodontal diseases
Sammanfattning : 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. LÄS MER
2. Tribological characteristics of some multi-layered Pb-free engine bearing materials
Sammanfattning : 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. LÄS MER
3. Validation and Application of CFD to Safety-Related Phenomena in Lead-Cooled Fast Reactors
Sammanfattning : 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. LÄS MER
4. Ultra high-pressure compaction of powder
Sammanfattning : 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. LÄS MER