Essays about: "chemistry"

Showing result 1 - 5 of 790 essays containing the word chemistry.

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

    University essay from Göteborgs universitet/Institutionen för kulturvård

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

    Abstract : 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. READ MORE

  2. 2. Coverage increase in a plant-based BB cream formulation with natural pigments

    University essay from KTH/Kemi

    Author : Leelou Zoé Billot; [2024]
    Keywords : BB cream; Coffee; Coverage; Formulation; KAFFAGE®; BB cream; kaffe; täckning; formulering; KAFFAGE®;

    Abstract : Kaffe Bueno, ett bioteknologiskt start-up-företag dedikerat till framsteg inom naturliga och gröna produkter, fokuserar på att utnyttja den outnyttjade potentialen hos kaffebiprodukter genom grön kemi och bioteknik. Då endast 1% av kaffet används för bryggning, extraherar företaget lösliga och olösliga produkter genom en uppdelning mellan ett oljeutvinning och ett efterföljande vattenuttag, vilket bidrar till att sänka CO2-utsläppen per värde och en cirkulär ekonomi. READ MORE

  3. 3. Gas Chromatographic Method Development for Analysis of Samples from a Carbon Capture Pilot Plant

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : David Wedin; [2024]
    Keywords : Carbon Capture and Storage; CCS; AMP DMSO; Gas Chromatography; amine absorption; analysis method development; Chemical Engineering; Chemistry;

    Abstract : In response to the escalating threat of climate change, carbon capture and storage have gained increasing attention as an important component in mitigating the global carbon dioxide emissions. Substantial research efforts have focused on enhancing the energy efficiency and availability of these technologies. READ MORE

  4. 4. Synthesis of aromatic thiol ligands for the formation of thermoelectric materials

    University essay from KTH/Kemi

    Author : Clément Bouchut; [2024]
    Keywords : ligand; organic chemistry; organic synthesis; thermoelectric materials; thiol; ligand; organisk kemi; organisk syntes; termoelektriska material; tiol;

    Abstract : I detta arbete så har en uppsättning aromatiska ditiol-ligander framställts (3,5-dimerkaptobensoesyra I, methyl-3,5-dimerkaptobensoat II, 3,5-dimerkaptotoluen III, 4,6-dimerkaptoisoftalaldehyde IV). En trestegssyntes innehållande Newman-Kwart omlagring som nyckelsteg användes för framställning av föreningarna I-III medan förening IV togs fram via en annan syntesväg. READ MORE

  5. 5. Tau-Leaping Implementations outside of chemistry

    University essay from Lunds universitet/Statistiska institutionen

    Author : Lotta Kornö; [2024]
    Keywords : Tau leaping; Mathematics and Statistics;

    Abstract : Tau-leaping is an algorithm for model simulations most often used in kinetic chemistry. It was created to make simulations more efficient at the cost of some accuracy. However, its uses outside of chemistry are limited but could help make some model simulations more efficient. READ MORE