Sökning: "microstructure"

Visar resultat 1 - 5 av 217 uppsatser innehållade ordet microstructure.

  1. 1. From Bloomery Furnace to Blast Furnace : Archeometallurgical Analysis of Medieval Iron Objects From Sigtuna and Lapphyttan, Sverige

    Kandidat-uppsats, KTH/Materialvetenskap; KTH/Materialvetenskap

    Författare :Andreas Helén; Andreas Pettersson; [2019]
    Nyckelord :;

    Sammanfattning : During the Early Middle Ages, the iron production in Sweden depended on the bloomery furnace, which up to that point was well established as the only way to produce iron. Around the Late Middle Ages, the blast furnace was introduced in Sweden. LÄS MER

  2. 2. Morphological characterization of neural tissue microstructure using the orientationally-averaged diffusion MRI signal

    Master-uppsats, Linköpings universitet/Avdelningen för medicinsk teknik

    Författare :Iulian Emil Tampu; [2019]
    Nyckelord :MRI; diffusion MRI; orientationally-averaged signal; powder-signal; microstructure;

    Sammanfattning : Diffusion-weighted magnetic resonance imaging (dMRI) is a powerful tool for thecharacterisation of neural tissue microstructural features. The role of neural projectioncurvature on the diffusion signal was recently studied for three temporal regimes of the diffusion pulse sequence in search for a description of the different decay trends in the orientationally-averaged diffusion signal reported in in vivo human studies. LÄS MER

  3. 3. Influence of microstructure on surface characteristics in cold-deformed stainless steel tubes

    Master-uppsats, Lunds universitet/Materialteknik

    Författare :Fredrik Ottenklev; [2019]
    Nyckelord :Cold deformation; surface roughness; strain; microstructure; austenitic stainless steel; grain rotation; Technology and Engineering;

    Sammanfattning : Cold deformation of metals is known to induce roughness on their free surface. In some of the processing equipment of Tetra Pak processing systems, tubes of austenitic stainless steel 316L are used. During the production of this processing equipment, such tubes are occasionally cold-deformed. LÄS MER

  4. 4. Ex-dagseffekten : En litteraturstudie kring ex-dagseffektens uppkomst och existens

    Kandidat-uppsats, KTH/Fastigheter och byggande

    Författare :Paulin Singh; [2019]
    Nyckelord :Ex-div effect; Ex-dividend day; Market efficiency; Abnormal returns; Ex-dagseffekten; Ex-dagen; Marknads-effektivitet; Avvikande avkastning;

    Sammanfattning : Aktiemarknaden uppfattas som effektiv då aktiepriset faller i paritet med utdelningen på ex-dagen. Tidigare studier ger belägg för att aktiepriset faller med mindre än utdelningen. Att aktiepriset faller med mindre än utdelningsbeloppet på ex-dagen utgör ex-dagseffekten och innebär en avvikande avkastning för aktier kring ex-dagen. LÄS MER

  5. 5. Recrystallization mapping of Ni-base alloys

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Christoffer Svensson; [2019]
    Nyckelord :;

    Sammanfattning : Superalloys such as alloy 718 and 925 possesses superior properties at elevated temperatures and corrosive environments. They are commonly found in application such as oil and gas extraction, turbine engines and in the chemistry industry. LÄS MER