Sökning: "polyvinylpyrrolidone"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet polyvinylpyrrolidone.

1. 1. Three-Dimensional Cartilage CultureModel – Cell Culture and Analysis ofChondrogenesis

   Kandidat-uppsats, Örebro universitet/Institutionen för medicinska vetenskaper

   Författare :Mario Zambrana; [2022]
   Nyckelord :;

   Sammanfattning : Background: Articular cartilage injuries are a major challenge in orthopedic surgery. Articular cartilage has a low metabolic activity, and it is avascular. Therefore, when injuries occur cartilage has a limited capacity to fully regenerate. LÄS MER

3. 2. Tribology of newly developed EAL versus water in hydropower turbine bearings

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Nayan Dhakal; [2019]
   Nyckelord :water-based lubrication; hydropower; turbine bearings; environmentally adaptive lubricants; modified water; viscosity modifiers; polyvinylpyrrolidone; poly sodium 4-styrenesulfonate ; UHMWPE; wear;

   Sammanfattning : The increasing demand for more readily bio-degradable, renewable and non-toxic environmentally adaptive lubricants with a lower degree of bioaccumulation has escalated the investigation of water-based lubricants as the potential alternatives for conventional mineral-based oils. Water is an excellent environmentally adapted lubricant; however, it is a low viscous fluid and holds downsides of having corrosive nature and extremely low pressure-viscosity coefficient leading to insufficient load-carrying capacity. LÄS MER

4. 3. Influence of Nucleation Techniques on the Degree of Supercooling and Duration of Crystallization for Sugar Alcohol as Phase Change Material : Investigation on erythritol-based additiveenhanced Composites

   Master-uppsats, KTH/Energiteknik

   Författare :JiaCheng Lin; HaoRan Teng; [2019]
   Nyckelord :Phase Change Material; Latent Thermal Energy Storage; Temperature-history; Sugar Alcohols; Supercooling; Duration of crystallization; Crystallization; Solidification; Fasändringsmaterial; Latent Termisk Energilagring; T-history; Sockeralkoholer; Underkylning; Varaktighet av kristallisering; Kristallisering; Stelning;

   Sammanfattning : Utilizing Phase Change Materials (PCM) for Latent Thermal Energy Storage (LTES) applications have previously been extensively researched as a measure to reduce greenhouse gas emissions from energy consumption. In order to make use of the waste heat from industrial processes for LTES purposes, a new demand emerged for PCMs capable of phase change in mid-temperature ranges of 100 °C - 200 °C. LÄS MER

5. 4. Printed transparent conducting electrodes based on carbon nanotubes (CNTs), reduced graphene oxide (rGO), and a polymer matrix.

   Master-uppsats, Umeå universitet/Institutionen för fysik

   Författare :Md Mazharul Islam; [2019]
   Nyckelord :CNTs; GO; rGO; PVP;

   Sammanfattning : The main focus of this project was to prepare transparent and conductive electrodes (TCEs). TCEs were made out of multi-walled carbon nanotubes (MWCNTs), reduced graphene oxide (rGO), and polyvinylpyrrolidone (PVP). LÄS MER

7. 5. Influence of Nucleation Techniques on the Degree of Supercooling and Duration of Crystallization for Sugar Alcohol as Phase Change Material : Investigation on erythritol-based additiveenhanced composites

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Jiacheng Lin; Haoran Teng; [2019]
   Nyckelord :Phase Change Material; Latent Thermal Energy Storage; Temperature-history; Sugar Alcohols; Supercooling; Duration of crystallization; Crystallization; Solidification.; Fasändringsmaterial; Latent Termisk Energilagring; T-history; Sockeralkoholer; Underkylning; Varaktighet av kristallisering; Kristallisering; Stelning;

   Sammanfattning : Utilizing Phase Change Materials (PCM) for Latent Thermal Energy Storage (LTES) applications have previously been extensively researched as a measure to reduce greenhouse gas emissions from energy consumption. In order to make use of the waste heat from industrial processes for LTES purposes, a new demand emerged for PCMs capable of phase change in mid-temperature ranges of 100 °C - 200 °C. LÄS MER