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Showing result 1 - 5 of 58 essays matching the above criteria.

1. 1. Evaluation of intrafractional motion for patients receiving whole brain radiotherapy in open-faced immobilisation masks

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Sara Falk; [2023]
   Keywords : Medicine and Health Sciences;

   Abstract : Purpose/Background Patients receiving whole brain radiotherapy (WBRT) today are treated with an immobilisation mask which fully covers their face and therefore might be experienced as uncomfortable and claustrophobic. In recent years, optical surface scanning (OSS) systems have been implemented for patient positioning and real-time motion monitoring [1]. READ MORE

3. 2. Arbitrary motion Synthetic Aperture Radar

   University essay from Lunds universitet/Matematisk statistik

   Author : Filip Alberius; Erik Rolander; [2023]
   Keywords : RADAR; SAR; Synthetic Aperture Radar; Pulsed Coherent Radar; PCR; VR; Virtual Reality; IMU; Inertial Measurment Unit; VAA; Virtual Antenna Array; Obstacle detection; Signal Processing; Matched Filter Method.; Technology and Engineering;

   Abstract : Syftet med denna avhandling är att utveckla en ny metod för att producera bilder med syntetisk aperturradar (SAR), med utgångspunkt i scenarier med arbiträr rörelse vad gäller radarsensorn. SAR är en väletablerad metod för att skapa 2- eller 3-dimensionella radarbilder, som traditionellt sett antar att radar-sensorns rörelse är linjär och förutsägbar. READ MORE

4. 3. Investigating the temperature mediated effects of antidepressant pharmaceutical on foraging behavior and activity in aquatic invertebrates

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Johanna Björkman; [2023]
   Keywords : ;

   Abstract : Contamination by pharmaceuticals in aquatic environments is an increasing problem globally. Wide range of pharmaceuticals of different treatments classes are commonly detected in water and the tissues of organisms and there is a growing concern about how these substances might affect the aquatic ecosystems. READ MORE

5. 4. Data-Driven Adaptive Control of Unmanned Surface Vehicles Using Learning-Based Model Predictive Control

   University essay from Lunds universitet/Institutionen för reglerteknik

   Author : Markus Svedberg; [2023]
   Keywords : Technology and Engineering;

   Abstract : In this thesis, the subject of data-driven control of Unmanned Surface Vehicles (USVs) is explored. The control task is formulated through Nonlinear Model Predictive Path Following Control (NMPFC). System identification (SYSID) and Reinforcement Learning (RL) are employed to improve performance in a data-driven manner. READ MORE

6. 5. Model Predictive Urea Dosing Control Strategy for Heavy-Duty Diesel Vehicles

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Mathias Schmekel; [2023]
   Keywords : Model predictive control; Selective catalytic reduction; Nitrogen oxides; Modell-prediktiv reglering; Selektiv katalytisk reduktion; Kväveoxider;

   Abstract : Stricter requirements on the reduction of Nitrogen Oxides (NOx) in the emissions of heavy-duty diesel vehicles drives development for more efficient aftertreatment systems. An ammonia covered catalyst is one of the most successful technologies in reducing NOx by converting it into the harmless byproducts water and nitrogen. READ MORE