Avancerad sökning

Visar resultat 1 - 5 av 22 uppsatser som matchar ovanstående sökkriterier.

1. 1. Nya metoder för fernissaborttagning – En komparativ studie

   Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

   Författare :Alica Larsson; [2023-11-08]
   Nyckelord :Oil painting; Varnish removal; Evolon® CR; Tissue-gel composite;

   Sammanfattning : In recent years, new varnish removal methods have emerged in conservation, with two notable approaches: the tissue-gel composite method, involving gel-coated tissue material pressed onto varnished surfaces for simultaneous dissolution and binding, and the use of Evolon® CR textile saturated with solvent. Evolon® CR offers an alternative to gels and tissue-gel composites, aiming to eliminate residue from gel thickening agents and the need for mechanical cleaning, while enabling the use of non-polar solvents in a bound form. LÄS MER

3. 2. Segmentation of x-ray images using deep learning trained on synthetic data

   Master-uppsats, KTH/Fysik

   Författare :Marcus Larsson; [2023]
   Nyckelord :Radiography; Deep Learning; Synthetic Data; Segmentation; Röntgen; Djupinlärning; Syntetisk Data; Segmentering;

   Sammanfattning : Radiograph examinations play a critical role in various applications such as the detection of bone pathologies and lung cancer, despite the challenge of false negatives. The integration of Artificial Intelligence (AI) holds promise in enhancing image quality and assisting radiologists in their diagnostic processes. LÄS MER

4. 3. In situ X-ray diffraction studies of vertically aligned CsPbBr3 nanowire arrays

   Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Författare :Jesper Larsson; [2022]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : The past decade has seen a great interest in the development of metal halide perovskite materials for use in photo-optical devices, due to the excellent photo-optical properties of these materials. The primary limitation to industrial adoption, and the subject of much research, is the susceptibility of these materials to degradation from exposure to various factors such as air, heat and moisture. LÄS MER

5. 4. Vikten av patientinformation inför en MR-undersökning : En litteraturstudie

   Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för hälsa, lärande och teknik

   Författare :Helena Alexandersson; Amanda Larsson; [2021]
   Nyckelord :Magnetic resonance imaging; questionnaires; communication; patient; information; appointment letter; experience; Professional patient relation; Magnetkameraundersökning; frågeformulär; kommunikation; patient; information; mötesbrev; erfarenhet; personal-patient relation;

   Sammanfattning : Inledning: Bristfällig information till patienterna inför en MR-undersökning kan leda till att patienterna blir nervösa, stressade och känner obehag och därmed uteblir från bokade tider eller väljer att avbryta sina undersökningar i förtid. Med en tydlig information till patienten innan MR-Kaundersökningen startar ökar det patientens förståelse inför besöket. LÄS MER

7. 5. Evaluation of the Impact of X-ray Tube Voltage and Filter Thickness on the Performance of Spectral Photon-Counting Detectors

   Kandidat-uppsats, KTH/Medicinteknik och hälsosystem

   Författare :Cassandra Mannila; Marcus Larsson; [2021]
   Nyckelord :Photon Counting Detectors; X-ray Tube Voltage; Filter Thickness; Detective Quantum Efficiency; Optimizing; Fotonräknande detektorer; Rörspänning; Filtertjocklek; DQE; Optimering;

   Sammanfattning : During the past years photon-counting detectors (PCDs) have emerged as an alternative to conventional energy-integrating detectors and may significantly improve the standard of care for computed tomography (CT). There are two main alternatives for the material of the detector: cadmium telluride (CdTe) and silicon (Si). LÄS MER