Sökning: "iron"

Visar resultat 21 - 25 av 1396 uppsatser innehållade ordet iron.

  1. 21. Artisanal Perspectives on Valsgärde : A technical analysis of scabbards

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kulturvetenskaper (KV)

    Författare :Robert Sven Guildford; [2023]
    Nyckelord :artisanship; crafting; interdisciplinary; Late Iron Age Scandinavia; tacit knowledge;

    Sammanfattning : The scabbards from the Valsgärde boat-graves are fine works of artisanship, the person who made them put many hours of work into them. It is easy to get lost in typologies and books,but one must not forget that some crafts are still being practiced to this day. LÄS MER

  3. 22. Veni, Vidi, Vendidi : En analys av asen i norr till denaren i söder

    Master-uppsats, Uppsala universitet/Arkeologi

    Författare :Denise Lundgren; [2023]
    Nyckelord :Central places; Gudme; Uppåkra; Stray coins; Roman coins; Scandinavia; Roman Empire; Iron Age; Centralplats; Gudme; Uppåkra; Utmarksfynd; Romerska mynt; Skandinavien; Romerska riket; Järnåldern;

    Sammanfattning : The presence of roman coins outside of the Roman Empire during the Iron Age is a curiousthing. One would assume they represent a giant trade confederation of sorts, and one would notbe completely wrong in assuming so. The trade aspect of the Roman Empire to the north is stillsomething unknown. LÄS MER

  4. 23. Lead Concentrations in Indoor Dust : Differences Between Indoor Shooting Ranges and Assumed Non-Lead Contaminated Sites

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

    Författare :Lena Brolin; [2023]
    Nyckelord :Ammunition; environmentally friendly ammunition; lead; lead at indoor shooting ranges; lead exposure.;

    Sammanfattning : A projectile which missed its target and falls into the bullet trap at the end of the shooting range might not be viewed as dangerous. Yet, hazardous fumes and fine metal fragments from the bullet might contaminate the users of the shooting range. LÄS MER

  5. 24. High Temperature Tribology of Exhaust Components in Alternative Fuel Engines

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Muhammad Hashir Zaheer; [2023]
    Nyckelord :High temperature tribology; Wear; Friction; Exhaust manifold; Lip seal ring; Wear resistant coatings; Inconel 718c; SiMo51 ductile cast iron; AlTiN; Tribaloy 400;

    Sammanfattning : Internal Combustion Engine (ICE) exhaust components are exposed to extreme operating temperatures. Thus, it is necessary that they are designed with materials that can sustain thermal and vibrational stresses. LÄS MER

  7. 25. Investigating the potential correlations between metal and metalloid concentrations and soil color : A Minor Field Study on the island province of Marinduque, Philippines

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

    Författare :Ivana Pia Saric Söderholm; Erik Readwin; [2023]
    Nyckelord :Marinduque; Metal and Metalloid; Nix Pro 2 Color Sensor; Philippines; Soil color; X-Ray Fluorescence XRF ; Filippinerna; Jordfärg; Marinduque; Metall och Metalloid; Nix Pro 2 Color Sensor; Röntgenfluorescens XRF ;

    Sammanfattning : This study was carried out as a bachelor's thesis at KTH Royal Institute of Technology during the spring of 2023, investigating the correlation between the color with the concentration of various metal and metalloids (MMs) in the soil of Marinduque, The Philippines. With a history of mineral exploitation, notably copper and gold, the island has faced persistent environmental challenges, exemplified by the catastrophic waste spills in 1993 and 1996 that contaminated the Boac and Mogpog Rivers. LÄS MER