Sökning: "PEF"

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

  1. 1. A comparative study of Product Environmental Footprint (PEF) and EN 15804 in the construction sector concentrating on the End-of-Life stage and reducing subjectivity in the formulas

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

    Författare :Seyed Shahabaldin Seyed Salehi; [2020]
    Nyckelord :LCA; EN 15804; PEF; Circular Footprint Formula; Recyclability Assessment; Circular Economy; End of life; recycling rate; construction; building; Energy margin; LCA; EN 15804; PEF; Formulär för cirkulär fotavtryck; bedömning av återvinningsbarhet; cirkulär ekonomi; livslängd; återvinningsgrad; konstruktion; byggnad; Bygg; LCA;

    Sammanfattning : One of the main polluting industries in the world with high environmental impact is the construction industry which also generates a huge amount of waste. To overcome the seburdens, we need to reduce the impacts through new solutions, technologies and by injecting circular economy concept into the industry. LÄS MER

  2. 2. Shelf life of fresh-cut fruits and salad leaves treated with Pulsed Electric Field (PEF)

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

    Författare :Chandan Soni; [2019]
    Nyckelord :PEF; pulsed electric field; reversible electroporation; calorimeter; metabolic rate; shelf life; fresh commodities; food engineering; livsmedelsteknik; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : Application of Pulsed Electric Field (PEF) treatment on five fresh commodities was analysed for the changes in the metabolic and physiological effects on their shelf life. Treatment parameters were optimised in order to achieve uniform electroporation on the samples, which was analysed by Propidium Iodide staining for the leaf samples. LÄS MER

  3. 3. Optimization of Pulse Electric Field Treatment and Vacuum Impregnation for Reducing Freezing Injury of Thawed Rucola Leaves

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

    Författare :Imelda Christiana Nyoto; [2018]
    Nyckelord :food engineering; livsmedelsteknik; Technology and Engineering; Agriculture and Food Sciences;

    Sammanfattning : Freezing injuries usually take place in thawed plant-based food products. To reduce freezing injuries, Pulse Electric Field (PEF) treatment and Vacuum Impregnation (VI) of cryoprotectant were used before the freezing process. LÄS MER

  4. 4. Application of pulsed electric fields and vacuum impregnation to improve the freezing tolerance of fresh Origanum vulgare leaves

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

    Författare :Iliana Karasa; [2018]
    Nyckelord :Oregano leaves; Freezing; Freezing tolerance; Pretreatments; Vacuum Impregnation; Pulsed electric fields; food engineering; livsmedelsteknik; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : One of most ancient food preservation methods is freezing because there are not caused significant changes the sensory characteristics and nutritional value of foods. Last decade, have been made great steps for the optimization of freezing tolerance of fresh vegetables, fruits and species. LÄS MER

  5. 5. Effektivitet av primärenergianvändning hos värmelagringssystem : En beräkningsmodell i Simulink

    M1-uppsats, Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Författare :Victor Ivansson; [2018]
    Nyckelord :Värmelagringssystem; Energieffektivisering; Fasomvandlingsmaterial; Simulink;

    Sammanfattning : En stor del av samhällets miljöpåverkan har ursprung hos bostaden, p.g.a. ineffektiva byggnader/energisystem och de boendes attityd mot energianvändningen. LÄS MER