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Visar resultat 1 - 5 av 16 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Status Mapping of tank to grave management of Low-GWP refrigerants.

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

    Författare :Sandra Parra Gimeno; [2023]
    Nyckelord :Refrigerant; Blends; Synthetic low-GWP refrigerant; Natural refrigerant; Global Warming Potential GWP ; Tank-to-grave; Interviews.; Köldmedier; Blandning; Globalt uppvärmningspotential GWP ; Låg-GWP köldmedier; Naturligt köldmedier; installation till destruktion; Intervjuer.;

    Sammanfattning : Refrigeration plays a vital role today in various residential, commercial, and industrial processes, requiring refrigerants to facilitate the cooling or heating processes. Over time, refrigerants have undergone significant changes to meet technological, social, environmental, and economic needs. LÄS MER

  3. 2. Geological characterization of rock samples by LIBS and ME-XRT analytical techniques

    Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

    Författare :Nsioh Elvis Nkioh; [2022]
    Nyckelord :geological characterization; analytical techniques; LIBS; ME-XRT; SEM; element maps; SEM-EDS; secondary electrons; rock samples; automated ore microscopy; SEM-Zeiss Merlin; element weight percentages; element oxide percentages; scanning techniques; analytical methods; laser induced breakdown spectrometry; multi energy x-ray transmission; scanning electron microscope; carbon coating; mineralogical classification; element composition; rock chemistry; rock chemical composition;

    Sammanfattning : One of the major challenges in earth sciences and mineral exploration has been to determine with high accuracy and at a fast rate the elemental composition as well as the general chemistry of a rock sample. Many analytical techniques e.g. LÄS MER

  4. 3. Novel materials from lignocellulosic sources- can they replace thermoplastics?

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Emmy Albinsson; Helina Tafesse Belachew; Jasmin Swaich; Hannah Juhlin; [2021]
    Nyckelord :Emulisonspolymerisation; Biobaserade plaster; Hållbarhet; Polymerer; Bearbetad halm; Kompositer; PISA-raft;

    Sammanfattning : Plastic waste is a severe environmental problem in today's society which has been noticed and discussed during the last couple of years. A constant increase of production over the last decades hasled to a large amount of plastic waste ending up in oceans as microplastics. LÄS MER

  5. 4. Utsortering av matavfall från hushåll i Vindelns kommun : Statistisk analys av avfallsdata samt studie av kunskap kring metoder för ökad sorteringsgrad

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Rebecca Eriksson; [2020]
    Nyckelord :matavfall hushåll;

    Sammanfattning : One third of the food produced for human consumption ends up as food waste. Sweden has enacted laws and regulations concerning municipalities waste management as a result of EU directives. By 2021 all municipalities are obliged to have a system for collection of food waste. LÄS MER

  7. 5. A garbage thesis : A quantitative study exploring the relationship between government composition and waste management.

    Kandidat-uppsats, Uppsala universitet/Statsvetenskapliga institutionen

    Författare :Nils Norström; [2019]
    Nyckelord :;

    Sammanfattning : The escalating negative consequences of increasing waste generation have in recent years and turned into a serious environmental threat. Waste is a major source of pollution that contributes to global warming and knowing the drivers behind waste generation is essential to finding solutions to the problems it creates. LÄS MER