Sökning: "PbS"

Visar resultat 21 - 25 av 95 uppsatser innehållade ordet PbS.

  1. 21. Undersökning av alternativa material för PVC plastmattor

    M1-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Hamza Khateeb; Robin Zijian Xie; [2021]
    Nyckelord :golvmattor; PVC; polymer; biopolymer; CES;

    Sammanfattning : Plasten Polyvinylklorid har under lång tid kritiserats ur miljösynpunkt på grund av plastens hälsofarliga beståndsdelar. PVC har medfört enorma miljöskador på ozonskiktet som orsakats av klorfluorkolväten men det som framförallt varit bekymrande på senare tid är mjukningsmedel som har skapat oro över deras möjliga hormonstörande effekter. LÄS MER

  3. 22. The influence of dissolution medium on in vitro dissolution profiles for pulmonary drug delivery

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för farmaceutisk biovetenskap

    Författare :Venus Zafranian; [2021]
    Nyckelord :Inhalation; in vitro dissolution; budesonide; fluticasone propionate; modified andersen cascade impactor; pulmonary drug delivery; dissolution profiles; dissolution medium;

    Sammanfattning : Today, orally inhaled drugs found on the market suffer from variable and discontinuous pulmonary drug release which lowers efficacy and patience compliance. This is usually a consequence of the poor understanding of the interaction and dissolution behavior of drug particles in the lung environment. LÄS MER

  4. 23. Integrating planetary boundaries into the life cycle assessment of electric vehicles : A case study on prioritising impact categories through environmental benchmarking in normalisation and weighting methods when assessing electric heavy-duty vehicles

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Ida Pehrson; [2020]
    Nyckelord :Life Cycle Assessment; Heavy-Duty Vehicles; Electric Vehicle; Normalisation; Weighting; Planetary Boundaries; Livscykelanalys; tunga transporter; elektriska fordon; normalisering; viktning; planetära gränser;

    Sammanfattning : The transport sector is facing great challenges for achieving development within the Earth’s boundaries. Currently, LCA studies on heavy- and medium-duty vehicles have mainly assessed the ‘well-to-wheel’ stage and the impact category climate change. LÄS MER

  5. 24. Deep Eutectic Solvents and Their Possible Application in Transdermal Drug Delivery

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

    Författare :Sarah Lindblom; [2020]
    Nyckelord :Deep Eutectic Solvents; Pharmaceuticals; Transdermal drug delivery; Choline Chloride; Rheology; Formulation; BSA; Franz cell diffusion; Pharmaceutical technology; Läkemedelsteknologi; Technology and Engineering;

    Sammanfattning : Deep eutectic solvents, DES, is a type of solvent made by mixing a quaternary ammonium salt with a hydrogen bond donor at the eutectic point of the system. Most common quaternary ammonium salt is Choline Chloride, ChCl. A specific DES, Choline:CAGE has shown promise in delivering insulin through the skin of mice. LÄS MER

  7. 25. Improving Validation & Verification data management by deploying a life cycle management tool

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Bastien Francomme; [2020]
    Nyckelord :;

    Sammanfattning : Managing data can be a challenge for large scale projects involving dozens of collaborators with different expertise. Data could be requirements, test procedures or product breakdown structures (PBS) for example. LÄS MER