Sökning: "ULRIKA NYSTRÖM"

Hittade 4 avhandlingar innehållade orden ULRIKA NYSTRÖM.

  1. 1. Concrete Structures Subjected to Blast and Fragment Impacts - Numerical Simulations of Reinforced and Fibre-reinforced Concrete

    Författare :Ulrika Nyström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SDOF; Concrete; fragment impact; weapon effects; fibre-reinforced concrete; blast wave; numerical simulations; reinforced concrete;

    Sammanfattning : Concrete is widely used in design of protective structures due to its good energy-absorbing characteristics under high pressures and, when properly reinforced, ductile behaviour. Nevertheless, the response of concrete structures subjected to severe dynamic loading differs from their static behaviour, on a structural level but also on a material level. LÄS MER

  3. 2. Modelling of Concrete Structures Subjected to Blast and Fragment Loading

    Författare :Ulrika Nyström; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; dynamisk belastning; fiberarmerad betong; materialmodellering; numeriska studier; splitter; stötvåg; Betong;

    Sammanfattning : Betong är tack vare sin låga kostnad och sitt stora användningsområde ett av de mest använda byggmaterialen i modern tid. Dess stora energiabsorberande förmåga vid höga tryck, samt det sega beteende betongkonstruktioner har vid väl utformad armering, gör betongen också lämplig i skyddande konstruktioner. LÄS MER

  4. 3. Vascular density and bone marrow fibrosis in childhood acute lymphoblastic leukemia

    Författare :Ulrika Norén Nyström; Anders Bergh; Erik Forestier; Göran Roos; Henrik Schrøder; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Childhood acute lymphoblastic leukemia; microvessel density; bone marrow fibrosis; in vitro drug resistance; minimal residual disease; outcome; Oncology; Onkologi;

    Sammanfattning : Background: In childhood acute lymphoblastic leukemia (ALL), the cure rate has now reached 80% in the western world. Even so, 15¬–20% will die from the disease or treatment-related causes, among them children who did not present any known unfavorable features at diagnosis. LÄS MER

  5. 4. Det kritiska uppdraget : Diskurser och praktiker i gymnasieskolans svenskundervisning

    Författare :Ulrika Nemeth; Linda Kahlin; Zoe Nikolaidou; Catharina Nyström Höög; Södertörns högskola; []
    Nyckelord :HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; literacy education; upper secondary education; critical literacy; critical transitivity; code theory; discourse analysis; teachers; focus groups; modality; transitivity; svenskundervisning; gymnasiet; svensklärare; fokusgrupper; critical literacy; kritisk transitivitet; diskursanalys; kodteori; transitivitet; modalitet; Utbildningsvetenskapliga studier; Studies in the Educational Sciences;

    Sammanfattning : The aim of the study is to investigate constructions and discourses of criticality, and how these are related to teachers’ conceived subject of Swedish concerning the development of students’ critical consciousness. The study is qualitative, and is based on three different materials: focus talks between teachers, international and national policy documents and frameworks, and classroom observations. LÄS MER