Sökning: "ELEMENT"

Visar resultat 1 - 5 av 3280 avhandlingar innehållade ordet ELEMENT.

  1. 1. Element 115

    Författare :Ulrika Forsberg; Kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; superheavy elements; element 115; new elements; alpha decay; X rays; gamma rays; nuclear structure; spontaneous fission; Fysicumarkivet A:2016:Forsberg; kärnstruktur; supertunga grundämnen; nya grundämnen; alfasönderfall; röntgenstrålning; gammastrålning; spontan fission; element 115; spektroskopi;

    Sammanfattning : This thesis is devoted to detailed studies of element 115 decay chains using the highly efficient multi-coincidence alpha, electron, gamma and X-ray detector setup TASISpec at the gas-filled separator TASCA at GSI, Darmstadt, Germany. In a three-week long experiment thirty new decay chains assumed to stem from element 115 isotopes were observed together with the very first detections of gamma rays and potential X-rays from these nuclei. LÄS MER

  3. 2. On failure modelling in finite element analysis : material imperfections and element erosion

    Författare :Mattias Unosson; Larsgunnar Nilsson; Kjell Simonsson; Lars Olovsson; Anders Eriksson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite element method; element erosion; material failure; material imperfections; crack-tip; Solid mechanics; Fastkroppsmekanik;

    Sammanfattning : This dissertation concerns failure modelling with material imperfections and element erosion in finite element analyses. The aim has been to improve the element erosion technique, which is simple to use and implement and also computationally inexpensive. LÄS MER

  4. 3. Ett främmande element i nationen : Svensk flyktingpolitik och de judiska flyktingarna 1938−1944

    Författare :Karin Kvist Geverts; Torkel Jansson; Lars M. Andersson; Mattias Tydén; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Sweden; refugee policy; discrimination; antisemitism; organizational culture; “race”; gender; Jewish refugees; Second World War; the Holocaust; 1938−1944; the Foreigner s Bureau; the National Board of Health; the Ministry of Foreign Affairs; social categorization; History; Historia;

    Sammanfattning : The aim is to increase our understanding of the mechanisms of social categorization and discrimination, as well as the connection between them. This has been accomplished by examining Swedish refugee policy towards Jewish refugees during the Second World War and the Holocaust, as conducted by The Foreigner’s Bureau of the National Board of Health and the Ministry of Foreign Affairs during 1938−1944. LÄS MER

  5. 4. Modelling Alternative Load Paths in Platform-Framed CLT Buildings : A Finite Element Approach

    Författare :Johannes Albert Josef Huber; Mats Ekevad; Ulf Arne Girhammar; Sven Berg; Sigurdur Ormarsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; timber; robustness; finite element method; alternative load paths; disproportionate collapse; Träteknik; Wood Science and Engineering;

    Sammanfattning : Timber has become more popular as a construction material during recent years. Engineered wood products, such as glued laminated timber and cross-laminated timber, have enabled the construction of multi-storey buildings. Tall buildings with many occupants need to resist a disproportional collapse in case of unexpected exposures, e.g. LÄS MER

  7. 5. On an interface element for delamination modelling

    Författare :Niklas Jansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; delamination; regularized discontinuity; finite element method; interface element;

    Sammanfattning : .... LÄS MER