Sökning: "Isopropanol"

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet Isopropanol.

1. 1. Cleaning methods for removal of bound soiling on leather

   Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

   Författare :Olivia Cati Starck; [2023-11-14]
   Nyckelord :Conservation; Leather; Cleaning; Vulpex; White spirit; Isopropanol; Gellan gum gel;

   Sammanfattning : This thesis investigates the removal of bound soiling on leather using three cleaning methods: Vulpex (10%) in white spirit, gellan gum gel loaded in isopropanol and white spirit by itself. More detailed studies of cleaning methods for bound soiling in leather conservation are sparse. LÄS MER

3. 2. Bläckborttagning från ben med hjälp av geler En kvantitativ studie för bläckborttagning på björnbäcken och björnkranium från Naturhistoriska riksmuseet

   Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

   Författare :Engla Nordin; [2023-11-07]
   Nyckelord :Conservation; reversibility; bones; FTIR; nanogels; hydrogels; ink.;

   Sammanfattning : This bachelor's thesis has investigated four different hydrogels loaded in different solvents efficiency to remove unknown ink from four pelvic bones and one skull from five bear individuals that belongs to The Swedish Museum of Natural History. The experimental part of the thesis consists of an FTIR analysis together with microscopy and macroscopy analysis of the ink on the bear skeletons, as well as some tests of different gel-solvent combinations on a moose skull. LÄS MER

4. 3. The Examination of Alternative Methods for Sperm Cell Lysis and Purification of Sexual Assault Samples

   Master-uppsats, Lunds universitet/Teknisk mikrobiologi

   Författare :Emilie Boson; [2023]
   Nyckelord :Differential lysis; Differential extraction; Sexual assault samples; Sperm cells; Forensic; DNA recovery; DNA profiling; DNA purification; Applied microbiology; Technology and Engineering; Biology and Life Sciences;

   Sammanfattning : Forensic sexual assault samples typically contain a mixture of a small quantity of sperm cells and a high quantity of epithelial cells. This relationship complicates the generation of a DNA profile, which prompts the need for differential lysis and extraction of the DNA. LÄS MER

5. 4. Design and investigation of a pulsating heat pipe for electronic cooling

   Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

   Författare :Sulafa Hammad; [2023]
   Nyckelord :Pulsating heat pipes PHP ; Electronic cooling; two phase flow heat transfer; Technology and Engineering;

   Sammanfattning : The purpose of this study is to design and investigate a pulsating heat pipe device (PHP). A PHP is a two-phase flow heat transfer device which can handle high heat fluxes with passive internal flow. It is made of a continuous loop serpentine, partially filled with a working fluid that can cool systems, such as electronic devices. LÄS MER

7. 5. Processing techniques of perovskite solar cells : Properties depending on material and manufacturing

   Kandidat-uppsats, Uppsala universitet/Fysikalisk kemi

   Författare :Andréa Nordmark; Simon Nilsson; [2023]
   Nyckelord :;

   Sammanfattning : This project investigates how different types of perovskite solar cells, differentiated by choice of materials and processing techniques, compares to each other regarding performance and characterization. The purpose of the project is to further develop perovskite solar cells and to improve the method of manufacturing for better performance. LÄS MER