Sökning: "rare-earth"

Visar resultat 1 - 5 av 102 uppsatser innehållade ordet rare-earth.

  1. 1. Lär vi oss av historien? En kvalitativ studie som undersöker två perspektiv av hållbar utveckling i relation till gruvbrytning i Kiruna

    Kandidat-uppsats, Göteborgs universitet/Institutionen för globala studier

    Författare :Hanna Thomsen; [2023-10-26]
    Nyckelord :sustainable development; agenda 2030; indigenous; sami; mining; postcolonial theory; justice; global studies; development studies;

    Sammanfattning : To meet the contemporary demands of sustainable development, enterprises aim to undergo a green transition in order to handle the threats of climate change. Through the lens of postcolonial theories questioning the knowledge apprised from western societies, a new light can be shed on alternative approaches to global conventions such as Agenda 2030. LÄS MER

  3. 2. PGE Geochemistry and Mineralogy of Dunite, Chromitite, and Laterite Samples from the Acoje Ophiolite Block, Philippines

    Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

    Författare :Michelle Dossey; [2023]
    Nyckelord :PGM; PGE; laterite; limonite; chromitite; dunite; platinum group minerals; platinum group elements; Acoje; Philippines;

    Sammanfattning : Ni-laterites have the potential to become unconventional ore deposits for platinum group elements (PGE). This study was conducted to determine enrichment trends of PGE as a result of the Ni-laterization process. LÄS MER

  4. 3. A Simulation-Based Decision Support Tool for Circularity : Remanufacturing of an Electric Machine Case Study

    Master-uppsats, KTH/Produktionsutveckling

    Författare :Mayari Pérez Tay; [2023]
    Nyckelord :Simulation; remanufacturing; circular business; electric machine;

    Sammanfattning : Over the last years, environmental concerns have grown regarding the pressure manufacturing activities exerts on natural resources. Many materials have been classified by the EU as scarce, rare earth elements found in magnets are amongst critical materials with high supply risk. LÄS MER

  5. 4. Photoluminescence Mapping of Erbium Doped Lithium Niobate

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Chuanshi Xie; [2023]
    Nyckelord :Automotive mapping; Erbium emitters; Ion implantation; Lithium niobate on insulator; photoluminescence microscopy; Automatisk kartläggning; Erbium fotonemitterare; Jonimplantation; Litiumniobat på isolator; fotoluminiscensmikroskopi.;

    Sammanfattning : Lithium niobate (LiNbO3) is a human-made crystalline which is widely used in modern photonics due to its useful properties. In recent years, there has been significant progress in the development of lithium niobate on insulator (LNOI) technology, realizing a fully functional photonic integrated circuits, thanks to its capabilities in both electro-optics and second-order optical nonlinearity. LÄS MER

  7. 5. Unveiling Contradictions: The Green Energy Transition and Sámi Indigenous Rights in the Per Geijer Expansion, Kiruna, Sweden

    Magister-uppsats, Malmö universitet/Institutionen för Urbana Studier (US)

    Författare :Maria Svensson; Maria Schmidt; [2023]
    Nyckelord :green energy transition; Indigenous rights; extractive industries; mining; sustainable development; Sámi; social sustainability;

    Sammanfattning : In recent decades, there has been a growing recognition of Indigenous rights over traditional territories and natural resources, alongside the intensification of extractive activities on Indigenous lands, often in violation of their rights.The paradox is driven by several factors, including escalating global commodity prices, energy security concerns, and the shift towards green energy. LÄS MER