Sökning: "degradation products"

Visar resultat 1 - 5 av 182 uppsatser innehållade orden degradation products.

  1. 1. Thermal degradation of PFAS in solid matter

    Master-uppsats, KTH/Kemi

    Författare :Tuqa Al-Badri; [2024]
    Nyckelord :PFAS; PFOS; PFOA; thermal degradation; sewage sludge; PFAS; PFOS; PFOA; termisk nedbrytning; avloppsslam;

    Sammanfattning : Per- och Polyfluorerade alkylsubstanser (PFAS) är syntetiskt framställda organiska föreningar som har använts i stor utsträckning i konsument- och industriprodukter. PFAS-substanser besitter attraktiva egenskaper såsom resistans mot väta, fett, fläckar och är dessutom värmetåliga. LÄS MER

  3. 2. EFFECTS OF COMMERCIAL NANO-LIME PRODUCTS AS A CONSOLIDATION METHOD FOR WALL PAINTINGS An experimental case study

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Hannah Petrini; [2023-11-07]
    Nyckelord :wall paintings; Dalby Church; nano-lime; consolidation; Nanorestore®; Nanorestore Plus®; conservation of wall paintings;

    Sammanfattning : Some of the main deterioration problems concerning wall paintings is structural degradation of the wall painting and the flaking of the painted layer. Consolidation, both in the form of reinforcement of the rendering of the wall painting and the re-adherence of a flaking paint layer to the underlying substrate, have thus been an important part of conservation efforts concerning wall paintings. LÄS MER

  4. 3. Farming without animals? The outlook for Biocyclic Vegan Agriculture as an alternative approach to food production in Sweden

    Master-uppsats, Lunds universitet/LUCSUS

    Författare :Kevin Edberg; [2023]
    Nyckelord :Sustainability Science; Biocyclic Vegan Agriculture; Multi-level Perspective; Sustainable transitions; Agri-food system; Social Sciences;

    Sammanfattning : Conventional agriculture and animal husbandry are leading causes of greenhouse gas emissions,environmental degradation, and biodiversity loss. Biocyclic Vegan Agriculture (BVA) is an approach that aims to address the concerns of modern agriculture and provide a sustainable and ethical alternative. LÄS MER

  5. 4. Effects of mixed surfactant system on chemical and physical stability of human growth hormone

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Karnsinee Viriyayudhakorn; [2023]
    Nyckelord :human growth hormone; surfactant; refolding; protein stability; physical degradation; chemical degradation; pharmaceutical technology; Technology and Engineering;

    Sammanfattning : In protein formulation, addition of surfactants is commonly executed to enhance product stability and shelf-life. The reason is that surfactants can protect proteins against surface-induced aggregation. However, the interaction between surfactant and protein depends on the type of surfactant used. LÄS MER

  7. 5. Tuning physical and chemical attributes of the synthetic implant poly(L-lactic acid) and its effects on biological stimulation

    Kandidat-uppsats,

    Författare :Gabriella Sverlinger; Felicia Norman; Nora Othman; Wilma Hämäläinen; Michaela Thyberg; Maja Jonsson; [2023]
    Nyckelord :Polylactic acid; degradation rate of PLLA; physio- chemical properties of PLA; injectable PLLA;

    Sammanfattning : Poly(lactic acid) (PLA) is a polymer chain consisting of repeating units of lactic acid (LA) used in various biomedical applications because of its biocompatible features. It is commonly used as a subdermal filler and constitutes as the main ingredient in SculptraR, which is a collagen regenerating filler used to treat lipoatrophy of the cheeks or to rejuvenate the skin. LÄS MER