Search for dissertations about: "Annika Björn"

Showing result 1 - 5 of 12 swedish dissertations containing the words Annika Björn.

  1. 1. Microbial Transformation of Organotin Compounds under Simulated Landfill Conditions

    Author : Annika Björn; Bo Svensson; Jörgen Ejlertsson; Bo Mattiasson; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Organotin compounds; landfill simulation; PVC; Environmental chemistry; Miljökemi;

    Abstract : Mono- and di-alkyltins are used extensively as heat stabilizers for processing of poly vinyl chloride (PVC). Tin mercaptide stabilizers are some of the most effective PVC stabilizers available. The main applications for tin stabilizers are building/construction products, such as pipes, fittings, siding and profiles (windows etc. READ MORE

  2. 2. Criticality of fast failures in the High Luminosity Large Hadron Collider

    Author : Björn Lindström; Roger Ruber; Daniel Wollmann; Maja Olvegård; Annika Nordt; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; machine protection; failures; beam losses; accelerator physics;

    Abstract : Each of the two Large Hadron Collider (LHC) beams contain 362 MJ of energy. This will be further increased to 678 MJ in the upcoming upgrade to the High Luminosity LHC (HL-LHC). In the event of an uncontrolled beam loss, a significant hazard occurs, that can damage the machine components. READ MORE

  3. 3. Becoming an Adult : Living Conditions and Attitudes among Swedish Youth

    Author : Annika Westberg; Björn Halleröd; Mattias Strandh; Tapio Salonen; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Sociology; youth; transitions; individualisation; life phase; life-course; welfare state; attitudes; social structuration; Sociologi; Sociology; Sociologi; Sociology; sociologi;

    Abstract : This thesis studies youth from different perspectives. These are the life phaseand the generational perspectives, which have been studied via questions of establishment and individualisation. READ MORE

  4. 4. Modelling of Bingham Suspensional Flow : Influence of Viscosity and Particle Properties Applicable to Cementitious Materials

    Author : Annika Gram; Björn Lagerblad; Ulrich Diederichs; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Self-Compacting Concrete; SCC; Fresh concrete flow; Numerical simulation; Viscosity; Open channel flow;

    Abstract : Simulation of fresh concrete flow has spurged with the advent of Self-Compacting Concrete, SCC. The fresh concrete rheology must be compatible with the reinforced formwork geometry to ensure complete and reliable form filling with smooth concrete surfaces. READ MORE

  5. 5. A Changing Arctic Climate : Science and Policy in the Arctic Climate Impact Assessment

    Author : Annika E. Nilsson; Björn-Ola Linnér; Sofie Storbjörk; Oran R. Young; Linköpings universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Arctic; climate; framing; knowledge production; regime; institution; actor network; co-production; indigenous knowledge; Arktis; klimat; kunskapsproduktion; regim; institution; aktörsnätverk; traditionell kunskap; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Climate change has often been framed as a global issue but slow progress in the global climate negotiations and an increasing need to plan for local adaptation have made it increasingly salient to also discuss the potential of other arenas for climate policy and knowledge production. This dissertation analyzes the interplay between science and policy at the international regional level based on a study of an assessment of the impacts of climate change in the Arctic. READ MORE