Sökning: "Quantitative material decomposition"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Quantitative material decomposition.

1. 1. Bogged down: Human preservation and decomposition. Using forensic scoring methods to assess three bog bodies from Denmark, England & Ireland.

   Master-uppsats, Lunds universitet/Arkeologi

   Författare :Jennifer Carey; [2021]
   Nyckelord :bog bodies; bog body research; human remains; Denmark; England; Ireland; forensics; decomposition; preservation; taphonomy; depositional environment; History and Archaeology;

   Sammanfattning : This work looks at three case studies from bog body research in Denmark, England and Ireland in order to investigate the variation of human decomposition in different depositional environments and the application of forensic methods to the area of bog body research in archaeology. The work attempts to assess the chosen case studies using an established forensic scoring method by Heaton et al (2010) and discusses the possible benefits of using an appropriately adapted scoring method for bog body research. LÄS MER

3. 2. Best Before : A selective service life analysis of denim fabrics with a focus on washing and drying degradation to optimize their recycling efficiency

   Magister-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :Marie Schlich; Joanna Neuss; [2019]
   Nyckelord :Denim; Recycling; Service Life Analysis; Material Utilisation; Use Optimisation; Circular Economy; Closed Loop Recycling; Fabric Degradation; Circularity; Recycling Efficiency;

   Sammanfattning : Resource scarcity and increasing environmental pressure have raised the stakes for rethinking material efficiency and textile recycling potential. As current practices fail to feed a closed loop recycling system, this research aims to contribute to the improvement of prevailing practices regarding denim as one of the most popular apparel materials worldwide while focusing on the issue of increasing amounts of discarded post-consumer textiles. LÄS MER

4. 3. Iodine Quantification Using Dual Energy Computed Tomography and applications in Brain Imaging

   Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

   Författare :Veronica Fransson; [2019]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : Purpose/Background Dual Energy Computed Tomography (DECT) have been clinically available for over ten years. Two such systems are currently used at Skane University Hospital (SUS) in Lund. By utilizing materials different attenuating properties at different energies, material decomposition and iodine quantification is possible. LÄS MER

5. 4. Quantitative Tissue Classification via Dual Energy Computed Tomography for Brachytherapy Treatment Planning : Accuracy of the Three Material Decomposition Method

   Master-uppsats, Institutionen för medicinsk teknik; Tekniska högskolan

   Författare :Merve Gürlüler; [2013]
   Nyckelord :brachytherapy; material decomposition; tissue classification; dual energy computed tomography;

   Sammanfattning : Dual Energy Computed Tomography (DECT) is an emerging technique that offers new possibilities to determine composition of tissues in clinical applications. Accurate knowledge of tissue composition is important for instance for brachytherapy (BT) treatment planning. LÄS MER

7. 5. Three material decomposition in dual energy CT for brachytherapy using the iterative image reconstruction algorithm DIRA : Performance of the method for an anthropomorphic phantom

   Master-uppsats, Institutionen för medicinsk teknik; Tekniska högskolan

   Författare :Robin Westin; [2013]
   Nyckelord :DECT; Iterative reconstruction; Tissue decomposition; Numerical stability; Uncertainty propagation;

   Sammanfattning : Brachytherapy is radiation therapy performed by placing a radiation source near or inside a tumor. Difference between the current water-based brachytherapy dose formalism (TG-43) and new model based dose calculation algorithms (MBSCAs) can differ by more than a factor of 10 in the calculated doses. LÄS MER