Sökning: "extract"

Visar resultat 1 - 5 av 1657 uppsatser innehållade ordet extract.

  1. 1. Characterisation of Non-metallic Inclusions in Special Steels using Electrolytic Extraction

    Master-uppsats, KTH/Materialvetenskap

    Författare :Josefin Mvele Svensson; [2024]
    Nyckelord :Non-metallic inclusions; electrolytic extraction; SEM; Icke-metalliska inneslutningar; elektrolytisk extraktion; SEM;

    Sammanfattning : When producing high strength special steels strict requirements are in place to assure the quality of the final product, both in terms of harmful elements and  the  content  of  non-metallic  inclusions  (NMI).  Achieving  cleanliness  is a  gradual  process  where all  the  steps  of  the  production  process  are  inter- connected, meaning that it is crucial to know the influence of each step in order to assure the contents of the final product. LÄS MER

  3. 2. Dark Ecology: Obscurities Illuminated

    Master-uppsats, Uppsala universitet/Statsvetenskapliga institutionen

    Författare :Nadja Gollbo; [2024]
    Nyckelord :dark ecology; object-oriented ontology; internal critique; political theory; speculative realism; ecological philosophy; environmental issues;

    Sammanfattning : This study investigates “dark ecology” – an ecological theory formulated by Timothy Morton, based on an object-oriented ontology and claimed to offer a new perspective on how humans can and should coexist with other “objects” in the world in a better, less hostile way. Dark ecology is a critique of both an anthropocentric and a biocentric worldview, aiming to erase the dichotomy between human/nature and subject/object. LÄS MER

  4. 3. Using artificial intelligence to improvetime estimation for project management

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Marcus Bonnedahl; [2024]
    Nyckelord :time estimation; ai; machine learning; project management;

    Sammanfattning : Time estimation is an important aspect in project management. Failure to make accurateestimates can lead to large consequences. Despite this, humans tend to make fairly inaccurateestimates when tasked to, often underestimating the time something will take substantially. LÄS MER

  5. 4. Norra polcirkelns uppvärmning och ännu varmare maktkapplöpning

    Kandidat-uppsats, Lunds universitet/Statsvetenskapliga institutionen

    Författare :Ulf Liljedahl; [2024]
    Nyckelord :Klimatförändringar; Arktis; Geopolitik; Internationella relationer; Realism; Liberalism; The Arctic five; Law and Political Science;

    Sammanfattning : Today the climate in the arctic regions are changing at a rapid rate, faster than any speed previously recorded in human history but how is it impacting the geopolitical situation in these regions? New territory is being created by the ice melting and new natural resources are being found, how can this impact the current situation? This study looks at and discusses the current geopolitical situation in the Arctic using two theories from international relations, realism and liberalism and how the situation can develop using these theories. From a realist standpoint it is a balance of power held in check primarily by nuclear weapons. LÄS MER

  7. 5. Decay Chains of Fast Alpha Emitters in the Actinide Region

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :Tanvir Sayed; [2024]
    Nyckelord :alpha decay; alpha emissions; fine structure; decay chain; decay scheme; alpha spectrometry; actinide; nucleus; nuclear structure; nuclear states; energy levels; uranium isotopes; U310 experiment; parasitic runs; decay station; TASISpec ; moving window deconvolution; digitisers; alpha-gamma coincidence; 221-Th decay; fine structure of alpha decay to 217-Ra; GSI; Gamow s theory; Geiger-Nuttall; chain search; short half-lives; Physics and Astronomy;

    Sammanfattning : With the advent of increasingly advanced spectroscopic instruments after the turn of the century, it has become accessible to unravel the structure of instantly ‘vanishing’ nuclei, with lifetimes as short as 1 μs, and responsible for pile-up events in analog electronics. Experimental data has been recorded by the Nuclear Structure Group at Lund University for 48Ca/50Ti + nat. LÄS MER