Sökning: "atmospheres"

Visar resultat 16 - 20 av 128 avhandlingar innehållade ordet atmospheres.

  1. 16. Behavioural Atmospheres and Vagueness in the Sharing of Urban Public Places

    Författare :Johan Wirdelöv; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : This thesis is an exploration of urban public places and social interactions understood as a sharing of place. Against the background of urbanization, migration, urban densification and new technologies, it can be assumed that our everyday ways of sharing place with one another are becoming more diversified. LÄS MER

  3. 17. Oxidation of Fe- and Ni-aluminides in Dry and Humid Atmospheres

    Författare :Adeline Velon; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aluminide; alloying element; SEM; high temperature oxidation; intermetallic; XPS; Fe3Al; Cr; water vapour; Ni3Al; AES;

    Sammanfattning : Aluminides based on Ni3Al and Fe3Al offer good mechanical and corrosion properties at high temperatures and are therefore being considered in the automotive and chemical industries. The aim of this work was to study the early stages and the mechanisms of oxide growth on unalloyed Ni3Al and Fe3Al in air. LÄS MER

  4. 18. Investigation of the behaviour of gaseous I2 and RuO4 in different atmospheres

    Författare :Joachim Holm; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; containment; deposition; iodine; gaseous-phase reactions; ruthenium; PWR; BWR;

    Sammanfattning : During a severe accident several hazardous and radiotoxic fission products can be released and constitute a threat to the environment. Two of the most important fission products are iodine and ruthenium which will be accumulated after inhalation in the human body in the thyroid gland and in the respiratory organs, respectively. LÄS MER

  5. 19. On the construction and use of model stellar atmospheres for stars of spectral types later than F O

    Författare :Bengt Gustafsson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  7. 20. Synthesis of complex organics via molecular growth mechanisms : Combined experimental and theoretical studies on ion-neutral reactions of C2H2N+ with ubiquitous hydrocarbons in Titan's ionosphere

    Författare :Pantea Fathi; Wolf Geppert; Paul Scheier; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Astrochemistry; Complex molecules; Ion-neutral reactions; Mass spectrometry; Planetary and satellite atmospheres; Titan; kemisk fysik; Chemical Physics;

    Sammanfattning : To provide insights on the molecular growth mechanisms leading to large carbon and nitrogen-bearing species in Titan’s ionosphere, laboratory measurements of ion-neutral reactions were conducted and the results are presented in the following doctoral dissertation. The product ions of the C2H2N+ reactions with saturated and unsaturated neutral hydrocarbons have been investigated using Guided Ion Beam Mass Spectrometer (GIB-MS). LÄS MER