Sökning: "CHF"

Visar resultat 1 - 5 av 20 uppsatser innehållade ordet CHF.

1. 1. Do Foreign Exchange Interventions Pay Off? An Empirical Assessment of the Prevented Damage for the Swiss Export Sector

   D-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

   Författare :Celine Heini; [2022]
   Nyckelord :Foreign Exchange Interventions; Monetary Policy; Swiss Exports;

   Sammanfattning : This thesis conducts a cost-benefit analysis of the Swiss National Bank's foreign exchange interventions from 2009 to 2019, focusing on the Swiss export sector. To that end, the benefit of foreign exchange interventions in terms of the damage that would have occurred to the Swiss export sector in the absence of any foreign exchange interventions is calculated. LÄS MER

3. 2. Undersökning av ledarkonstruktion vid bränsletest : Teoretisk konceptframtagning av ledarkonstruktion

   Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknik

   Författare :Sebastian Skans; [2022]
   Nyckelord :bränslestavar; critical heat flux; departure from nucleate boiling; kärnkraft; värmeledning;

   Sammanfattning : In nuclear power plants, during operation at high temperatures, there can occur a steam build-up around the fuel rods at an increasing rate. This inhibits the water’s effectivity in removing heat from the rods. When this occurs and reaches a critical point, the temperature in the fuel rods surges, which can lead to them being damaged. LÄS MER

4. 3. Investigation of Machine Learning Regression Techniques to Predict Critical Heat Flux

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

   Författare :Emil Helmryd Grosfilley; [2022]
   Nyckelord :Critical Heat Flux; Machine Learning; Regression; Neural Network; nu-Support vector regression; Gaussian Process regression; Transfer Learning;

   Sammanfattning : A unifying model for Critical Heat Flux (CHF) prediction has been elusive for over 60 years. With the release of the data utilized in the making of the 2006 Groeneveld Lookup table (LUT), by far the largest public CHF database available to date, data-driven predictions on a large variable space can be performed. LÄS MER

5. 4. Predictive value of three-dimensional echocardiographic variables on development of myxomatous mitral valve disease in dogs

   Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

   Författare :Moa Isaksson; [2022]
   Nyckelord :Cavalier King Charles Spaniel; myxomatous mitral valve disease; three-dimensional echocardiography; prognosis;

   Sammanfattning : Myxomatous mitral valve disease (MMVD) is the most common acquired cardiovascular disease and the most common cause of congestive heart failure (CHF) in dogs. Cavalier King Charles Spaniels (CKCS) is one of the breeds most commonly affected by MMVD and disease progression has been shown to occur at a younger age among CKCS, when compared to other breeds. LÄS MER

7. 5. A Numerical Study of Melt Pool Heat Transfer in the IVR of a PWR

   Master-uppsats, KTH/Fysik

   Författare :Yuer Zhao; [2021]
   Nyckelord :In-vessel melt retention; corium pool; Zr oxidation ratio; melt pool convection; CFD; SST k-ω turbulence model; Smältretention i kärlet; koriumpöl; Zr-oxidationsförhållande; konvektion i en smältpöl; CFD; SST k-ω turbulensmodell;

   Sammanfattning : This thesis aims to provide the thermal condition of melt pool convection by CFD simulation, which is important to the assessment of the invessel melt retention (IVR) strategy widely adopted in Generation III pressurized water reactors (PWRs). As a severe accident mitigation measure, the IVR strategy is realized through external cooling of the lower head of a reactor pressure vessel (RPV). LÄS MER