Sökning: "Cluster expansion"

Visar resultat 26 - 30 av 35 avhandlingar innehållade orden Cluster expansion.

  1. 26. Järnhanteringens dynamik : Produktion, lokalisering och agglomerationer i Bergslagen

    Författare :Fredrik Olsson; Olle Krantz; Dan Bäcklund; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; iron industry; agglomerations; clusters; regions; parishes; localisation; early modern; regional industrialisation; employment structure; iron production; bar iron export; Sweden; Bergslagen; Central Sweden; Economic history; Ekonomisk historia;

    Sammanfattning : Abstract This thesis explores early modern industrial dynamics and especially the long-term performance of iron production and its localisation in Central Sweden during the period 1368-1910. Iron production, iron export and localisation in a national perspective as well as the regional industrial development in Central Sweden during the period 1805-1910 are studied. LÄS MER

  3. 27. Properties of Al-Mg Alloys and Vacancies in Al: a First-Principles Investigation

    Författare :Karin M. Carling; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Phase transformations such as precipitation are used to control the strength of many technologically important aluminum alloys. In precipitation hardening, the material is heat treated and aged to produce precipitates, small particles of a different phase, in the matrix. LÄS MER

  4. 28. Bebyggelsehierarkier och bylandskap : Om övergången mellan vikingatid och tidig medeltid ur ett halländskt perspektiv

    Författare :Anders Håkansson; Historisk arkeologi; []
    Nyckelord :HUMANIORA; HUMANITIES; bebyggelsestruktur; byar; medeltid; Materiell kultur; social hierarchy; Social organisation; settlement structure;

    Sammanfattning : The doctoral thesis seeks to discuss the transition between Viking Age and early medieval settlement and the establishment of the historical villages, based on archaeological material collected in Halland. The development is described in terms of three general periods of change: Period 1, c. LÄS MER

  5. 29. To reduce a ribonucleotide – Radical solutions in enzymology in form and function

    Författare :Oskar Aurelius; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ribonucleotide reductase; X-ray crystallography; Small-angle X-ray scattering; nucleotide metabolism; protein biophysics; metalloproteins; anaerobic enzymology;

    Sammanfattning : It has been more than 50 years since the enzyme system ribonucleotide reductase (RNR), catalysing the reduction of ribonucleotides to deoxyribonucleotides, was first discovered. RNR was also the first time that radical chemistry was revealed in an enzyme. LÄS MER

  7. 30. Phase stability and physical properties of nanolaminated materials from first principles

    Författare :Andreas Thore; Johanna Rosén; Björn Alling; Martin Dahlqvist; Tilmann Hickel; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The MAX phase family is a set of nanolaminated, hexagonal materials typically comprised of three elements: a transition metal (M), an A-group element (A), and carbon and/or nitrogen (X). In this thesis, first-principles based methods have been used to investigate the phase stability and physical properties of a number of MAX and MAX-like phases. LÄS MER