Sökning: "gain factor"

Visar resultat 1 - 5 av 426 avhandlingar innehållade orden gain factor.

  1. 1. Fatigue life extension in existing steel bridges. High-Frequency Mechanical Impact treatment and Tungsten Inert Gas remelting in life extension and fatigue crack repair of welded steel structures

    Författare :Hassan al-Karawi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HFMI; TIG-dressing; Life extension; Post weld treatment; Gain factor; Linear elastic fracture mechanics; Crack retrofiting; Peening; fatigue crack; Crack detection; Microhardness; Concentration factor; LEFM; TIG-remelting; Strain gauge;

    Sammanfattning : This thesis investigates the performance of improved welds with two post-weld treatment methods for application on existing structures. High-Frequency Mechanical Impact (HFMI) treatment and Tungsten Inert Gas (TIG) remelting were used for fatigue life extension of welded structures. LÄS MER

  2. 2. Weight gain in children : possible relation to the development of diabetes

    Författare :Karina Huus; Johnny Ludvigsson; Jonas Ludvigsson; Karin Enskär; Staffan Janson; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Background: The prevalence of overweight and obesity among children has increased the last decades and is now defined as a global epidemic disease by the World Health Organization. Also the incidence of type 1 diabetes has increased and there are some hypothesises that argue there is a connection between overweight/obesity and type 1 diabetes. LÄS MER

  3. 3. Variational Inference of Dynamic Factor Models

    Författare :Erik Spånberg; Pär Stockhammar; Gebrenegus Ghilagaber; Sune Karlsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dynamic factor models; variational inference; missing data; nowcasting; expectation maximization; statistik; Statistics;

    Sammanfattning : When we make difficult and crucial decisions, forecasts are powerful and important tools. For that purpose, statistical models can be our most effective aid. Ideally, these models can incorporate large sets of multifaceted data. LÄS MER

  4. 4. Complement-mediated kidney diseases: Genotype, phenotype and inhibition studies

    Författare :S.S. Aradottir; Lund Pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; The complement system; factor B; factor D; danicopan; Atypical hemolytic uremic syndrome; C3 glomerulopathy; Membranoproliferative glomerulonephritis; genes; monozygotic twins;

    Sammanfattning : Complement-mediated kidney diseases are ultrarare conditions characterized by excess complement activation related in most cases to complement gene variants or circulating autoantibodies. These conditions are chronic and can lead to kidney failure. LÄS MER

  5. 5. Growth pattern and nutritional intake as predictors for retinopathy of prematurity

    Författare :Pia Lundgren; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinopathy of prematurity; Preterm infant; Birth weight; Risk factor; Nutrition; Weight gain;

    Sammanfattning : Background: Retinopathy of prematurity (ROP) is a sight-threatening disease that affects extremely preterm and very preterm infants. Approximately 5–10% of infants screened for ROP go on to develop severe ROP that requires treatment. LÄS MER