Sökning: "daas"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet daas.

  1. 1. Defect Formation during Solidification in Grey Iron Castings

    Författare :Lennart Elmquist; Ingvar Svensson; Attila Diószegi; Doru Stefanescu; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shrinkage Porosity; Grey Iron; Solidification; Nucleation; Primary Austenite; DAAS; Eutectic Cells; Microstructure; Macrostructure; Hot Spot; Oxygen; Hydrogen; Materials science; Teknisk materialvetenskap;

    Sammanfattning : The presence of defects is of major concern in the production of grey iron castings. Some defects are merely an aesthetic problem while others can be detrimental for the performance of the component. Among the several possible defects, shrinkage porosity is one of the more challenging to understand and avoid. LÄS MER

  3. 2. Factors Influencing the Formation of Shrinkage Porosity in Grey Cast Iron

    Författare :Lennart Elmquist; Ingvar Svensson; Attila Diószegi; Jarmo Tamminen; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shrinkage porosity; Grey iron; Solidification; Primary austenite; Equiaxed zone; Columnar zone; CET; DAAS; Oxygen; Hydrogen; Materials science; Teknisk materialvetenskap;

    Sammanfattning : .... LÄS MER

  4. 3. Factors Influencing the Formation of Shrinkage Porosity in Grey Cast Iron

    Författare :Lennart Elmquist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CET; Oxygen; Columnar zone; Grey iron; Shrinkage porosity; Equiaxed zone; Solidification; DAAS; Hydrogen; Primary austenite;

    Sammanfattning : The presence of shrinkage defects is of major concern in the production of grey iron castings. This type of defect can penetrate through the casting as a three-dimensional network. LÄS MER

  5. 4. Towards the elimination of hepatitis C : identifying the infected population, and remaining hepatitis C related risks after successful treatment

    Författare :Charlotte Lybeck; Ann-Sofi Duberg; Soo Aleman; Scott Montgomery; Magnus Gottfredsson; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HCV; HCC; epidemiology; MTCT; pregnancy; DAA; OCI;

    Sammanfattning : Chronic Hepatitis C virus (HCV) infection can lead to liver fibrosis and cirrhosis with increased risk of hepatocellular carcinoma (HCC) and liver failure. The World Health Organisation (WHO) has set a goal to eliminate viral hepatitis as a global health threat by 2030. LÄS MER

  7. 5. Design and Synthesis of Hepatitis C Virus NS3 Protease Inhibitors : Targeting Different Genotypes and Drug-Resistant Variants

    Författare :Anna Karin Belfrage; Anja Sandström; Ulf Ellervik; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hepatitis C virus; HCV; NS3 protease inhibitors; structure-activity relationship; 2 1H -pyrazinone; quinazoline; resistance; Pd catalysis; Medicinal Chemistry; Läkemedelskemi; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : Since the first approved hepatitis C virus (HCV) NS3 protease inhibitors in 2011, numerous direct acting antivirals (DAAs) have reached late stages of clinical trials. Today, several combination therapies, based on different DAAs, with or without the need of pegylated interferon-α injection, are available for chronic HCV infections. LÄS MER