Sökning: "pits"

Visar resultat 1 - 5 av 75 avhandlingar innehållade ordet pits.

  1. 1. Initiation and Repassivation of Pits on Austenitic Stainless Steel

    Författare :Fredrik Falkenberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chloro complex; pitting corrosion; metastable pits; phosphate; nitrogen; passive film; chloride; repassivation; molybdenum; austenitic stainless steel;

    Sammanfattning : Stainless steels can be damaged by pitting corrosion in presence of aggressive anions, such as halide ions. The aim of this work was to study different aspects on initiation and repassivation of pits on austenitic stainless steel in chloride solutions at ambient temperature. LÄS MER

  3. 2. Gårdsstrukturer i Halland under bronsålder och äldre järnålder : Farm Structures in Halland in the Bronze Age and Early Iron Age

    Författare :Jörgen Streiffert; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; household organization; three-aisled house; house plan; dwelling house; room formation; dwelling room; utility section; hearths; pits; Bronze-Age; Pre-Roman Iron Age; Roman Iron Age; Migration Period; Viking Age; Middle Ages; Halland;

    Sammanfattning : The dissertation Gårdsstrukturer i Halland under bronsålder och äldre järnålder consists of two separate parts. One is the licentiate thesis På gården from 1999 while the other is a supplementary part entitled Boningshusets rumsbildningar. LÄS MER

  4. 3. Sirkas : ett samiskt fångstsamhälle i förändring Kr.f.-1600 e.Kr

    Författare :Inga-Maria Mulk; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Sámi; sijdda; northern Sweden; hunting-fishing; reindeer hunting; fur trade; early Iron Age; late Iron Age; medieval time; settlement pattern; seasonal mobility; intensification; hearths; stállo-sites; sacrificial sites; hunting pits; food storage; domestic social space;

    Sammanfattning : The dissertation is an investigation of Sirkas-sijdda, a Sámi hunting society in the interior of northern Sweden in the period AD 1-1600. The principal sources are historical evidence for the period around 1600, which saw the beginnings of colonial settlement and reindeer pastoralism, and for the earlier period archaeological data from excavations. LÄS MER

  5. 4. Från Döudden till Varghalsen : en studie av kontinuitet och förändring inom ett fångstsamhälle i övre Norrlands inland, 5200 f.Kr. - 400 e.Kr

    Författare :Ingela Bergman; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Hunter-gatherer; Lappland; northern Sweden; Late Mesolithic; Neolithic; Bronze Age; early Iron Age; settlement sites; hunting pits; seasonal mobility; logistically organized; settlement patterns; spatial analysis; Jägare samlare-- Sverige -- Lappland; Bosättningar-- Sverige -- Lappland; Arjeplog;

    Sammanfattning : This thesis is an investigation of a prehistoric hunter-gatherer society in Arjeplog, Lappland, northern Sweden, with regard to changes in the subsistence strategies and social organization. Chronologically, the archeological record dates from 5200 BC to 400 AD. LÄS MER

  7. 5. Vinterbyar : ett bandsamhälles territorier i Norrlands inland, 4500-2500 f. Kr

    Författare :Åsa Lundberg; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; social territory; local band; regional band; language family; settlement pattern; semi-sedentary; late mesolithic; neolithic; semi-subterranean house; winter sites; red slate; pit-falls; cooking pits; scrapers;

    Sammanfattning : The main archaeological features studied in this thesis are semi-subterranean house remains in the woodlands of middle northern Sweden, east of the high mountains and some 100 km from the coast. The period during which they were occupied has been delimited to 4500-2500 BC. LÄS MER