Search for dissertations about: "pod"

Showing result 21 - 25 of 64 swedish dissertations containing the word pod.

2. 21. Depression and delirium in cardiac surgery patients

   Author : Anna Falk; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Depression is common in persons with cardiac disease, and there is a well-known association between depression and increased cardiovascular morbidity and mortality. Preoperative depression has been associated with postoperative delirium (POD) after general surgery but the association between depression and POD in persons undergoing cardiac surgery is sparsely studied. READ MORE

4. 22. Time, space and control: deep-learning applications to turbulent flows

   Author : Luca Guastoni; Ricardo Vinuesa; Hossein Azizpour; Philipp Schlatter; Andrea Beck; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulence; deep learning; deep reinforcement learning; flow control; turbulens; djupinlärning; djupförstärkningsinlärning; flödeskontroll; Teknisk mekanik; Engineering Mechanics;

   Abstract : In the present thesis, the application of deep learning and deep reinforcement learning to turbulent-flow simulations is investigated. Deep-learning models are trained to perform temporal and spatial predictions, while deep reinforcement learning is applied to a flow-control problem, namely the reduction of drag in an open channel flow. READ MORE

5. 23. On model assisted probability of detection in eddy current evaluation

   Author : Anders Rosell; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Eddy Current; Model Assisted Probability of Detection; Finite Element Modelling; Non-destructive Evaluation;

   Abstract : The goal of this work has been to investigate the possibility to use mathematical modelling to characterize the capability and reliability of automated eddy current (EC) inspections. EC evaluation is one of the most applied methods for non-destructive evaluation (NDE) and is studied within this work. READ MORE

6. 24. Finite Element Modelling of Eddy Current Non-Destructive Evaluation in Probability of Detection Studies

   Author : Anders Rosell; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Eddy Current; Model Based Probability of Detection; Probability of Detection; Non-destructive Evaluation; Finite Element Modelling;

   Abstract : The goal of this work has been to evaluate the possibility to use mathematical modelling to characterize the capability and reliability of automated eddy current inspections. The safety in aerospace propulsion is critical. Components that are critical for the operation are therefore designed to withstand material degradation. READ MORE

7. 25. Friction and Wear Phenomena in Steels at Elevated Temperatures

   Author : Sinuhe Hernandez; Urban Wiklund; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Abstract : Different grades of steels are often exposed to high temperatures whether during their shaping/forming or during their use in several applications. This exposure to high temperature has a great bearing on the resulting friction and wear phenomena in steels due to changes in their surface and near-surface properties. READ MORE