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Showing result 1 - 5 of 51 swedish dissertations matching the above criteria.

2. 1. Input Calibration, Code Validation and Surrogate Model Development for Analysis of Two-phase Circulation Instability and Core Relocation Phenomena

   Author : Viet-Anh Phung; Pavel Kudinov; Cristophe Demaziere; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Reactor system code; input calibration; code validation; surrogate model; two-phase circulation flow instability; in-vessel core relocation; genetic algorithm; artificial neural network; Reaktorsystemkod; indata kalibrering; kodvalidering; surrogatmodell; två-fas cirkulationsflöde; instabilitet; härdrelokering i reaktortanken; genetisk algoritm; artificiella neurala nätverk; Fysik; Physics;

   Abstract : Code validation and uncertainty quantification are important tasks in nuclear reactor safety analysis. Code users have to deal with large number of uncertain parameters, complex multi-physics, multi-dimensional and multi-scale phenomena. READ MORE

4. 2. Optimizing fluid therapy in the hemodynamically unstable patient

   Author : Anja Lindén; Anestesiologi och intensivvård; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Septisk chock; Vätsketerapi; Icke-resusciteringsvätska; Hemodynamisk instabilitet; Preload responsiveness; Blodvolym; Septic shock; Fluid therapy; Non-resuscitation fluids; Hemodynamic instability; Blood volume;

   Abstract : .... READ MORE

5. 3. Treatment Decision after Anterior Cruciate Ligament Injury, and Evaluation of Measurement Properties of a Patient Reported Outcome Measure

   Author : Hanna Tigerstrand Grevnerts; Joanna Kvist; Sofi Sonesson; Håkan Gauffin; Clare Ardern; Eva Ageberg; Linköpings universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; anterior cruciate ligament injury; ACL; ACL reconstruction; ACLR; choice of treatment; IKDC; measurement properties; evaluation;

   Abstract : Background: After an ACL injury, treatment aims to restore knee function. Evaluation of treatment progress is important, and adequate measurement methods are necessary. The International Knee Documentation Committee- Subjective Knee Form (IKDC-SKF) is a common patient-reported outcome measure (PROM) used after ACL injury. READ MORE

6. 4. Finite Element Methods for Interface Problems

   Author : David Samvin; Peter Hansbo; Kent Salomonsson; Jönköping University; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Finite Element Method; Interface; Embedded; CutFEM; Finita elementmetoden; Sprickor; CutFEM;

   Abstract : This thesis focuses on computationally efficient methods for flow in fractured porous media. Two approaches are presented where the interface is embedded on the underlying finite element mesh. The methods allow for representation of the interface geometry from the underlying discretization and with discontinuities across the interface. READ MORE

7. 5. Fronts and instabilities in laser ablation, organic semiconductors and quantum media

   Author : Mikhail Modestov; Vitaly Bychkov; Mattias Marklund; Tito Mendonca; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; front; instability; deflagration; fysik; Physics;

   Abstract : The concept of a front plays a decisive role in various elds in physics and beyond. In the present thesis we study key aspects of front dynamics and stability in the context of laser plasmas, organic semiconductors and quantum media. READ MORE