Sökning: "Microscopy"

Visar resultat 1 - 5 av 920 uppsatser innehållade ordet Microscopy.

1. 1. The paint loss of Callmander’s stained glass windows: An investigation of the prevalence and causes behind the paint loss on Callmander and Svenska Glasmåleri AB’s stained glass windows

   Master-uppsats, Göteborgs universitet/Institutionen för kulturvård

   Författare :Victor Eisfeldt; [2024-02-06]
   Nyckelord :Grisaille; Stained-glass; Callmander; Vitreous Paint;

   Sammanfattning : This MA-thesis investigates the loss of grisaille paint in the stained-glass windows created by the artist Reinhold Callmander and Svenska Glasmåleri AB, with the aim of understanding the prevalence as well as the reasons behind the issue. Stained glass has historically been in the periphery of conservation. LÄS MER

3. 2. Tracing Tempera through Time-of-Flight Secondary Ion Mass Spectrometry Analysing samples from four icons from the Nationalmuseum collection

   Master-uppsats, Göteborgs universitet/Institutionen för kulturvård

   Författare :Nina Olivier; [2024-01-30]
   Nyckelord :Icons; tempera; emulsions; analysis methods; ToF-SIMS;

   Sammanfattning : This thesis will analyze samples in form of cross-sections taken from four icons of the Nationalmuseum collection, two Russian, from the 18th and 19th centuries and two Greek, also from the 18th and 19th centuries, using the Time-of-Flight Secondary Ion Mass Technique. The objective is to detect, isolate and, if possible, identify the amino acids and the fatty acids in the protein and lipids used in the tempera, the ground, and the olifa using Time of Flight Secondary Ion Mass Spectrometry. LÄS MER

4. 3. Process parameter optimisation for Waspaloy using Laser-Directed Energy Deposition with Powder

   Kandidat-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskap

   Författare :Johannes Lövhall; [2024]
   Nyckelord :Process parameter optimisation; Waspaloy; Laser-Directed Energy Deposition with Powder;

   Sammanfattning : Material utilisation is of importance in the manufacturing industry formaking the most of each material, minimising waste and increasing cost-effectiveness. In this thesis, samples of Waspaloy built with the method of L-DED-P has been analysed in order to investigate how process pa-rameters influence the build quality and geometrical accuracy in as-builtobjects. LÄS MER

5. 4. Effect of mixing time and mixing rate on the evolution of powderproperties for binary adhesive mixtures

   Master-uppsats, Uppsala universitet/Institutionen för farmaceutisk biovetenskap

   Författare :Noveen Muslih Sadullah; [2024]
   Nyckelord :Adhesive mixture; mixing time; mixing rate; Budesonide; Lactopress SD;

   Sammanfattning : Dry powder inhalers (DPIs) are often used to deliver drugs to the lungs when treating respiratory diseases. Inhalation powders are often formulated as adhesive mixtures which is the main formulation type used for dry inhalation powders of pharmaceuticals. LÄS MER

7. 5. Virtual H&E Staining Using PLS Microscopy and Neural Networks

   Master-uppsats, Lunds universitet/Matematik LTH

   Författare :Sally Vizins; Hanna Råhnängen; [2024]
   Nyckelord :Deep learning; Virtual staining; Skin tissue; Hematoxylin Eosin; H E; Pathology; Carcinoma; Point light source illumination; Neural Networks; GANs; Generative adversarial networks; CNNs; Convolutional neural networks; Relativistic generative adversarial network; Unet; Digital microscopy; Attention-Unet; Dense-Unet; Mathematics and Statistics;

   Sammanfattning : Histopathological examination, crucial in diagnosing diseases such as cancer, traditionally relies on time- and resource-consuming, poorly standardized chemical staining for tissue visualization. This thesis presents a novel digital alternative using generative neural networks and a point light source (PLS) microscope to transform unstained skin tissue images into their stained counterparts. LÄS MER