Sökning: "fragmentation"

Visar resultat 1 - 5 av 531 avhandlingar innehållade ordet fragmentation.

  1. 1. Property fragmentation : Redistribution of land and housing during the Romanian democratisation process

    Författare :Karin E. K. Dawidson; Göran Hoppe; Iréne Nilsson; Örjan Sjöberg; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social and economic geography; Romania; restitution; re-privatisation; democratisation; political geography; Kulturgeografi; Human geography; Kulturgeografi;

    Sammanfattning : In the context of democratisation in the early 1990s, the governments in Central and East Europe (CEE) had to decide how to deal with property that had been confiscated under state socialism. Nationalised housing and collectivised land were to a varying extent returned to former owners and their heirs by means of restitution, as well as being distributed to other citizens who were in possession of the users’ rights to such properties. LÄS MER

  2. 2. Ions colliding with molecules and molecular clusters : fragmentation and growth processes

    Författare :Tao Chen; Henrik Cederquist; Hutton Roger; Stockholms universitet; []

    Sammanfattning : In this work we will discuss fragmentation and molecular growth processes in collisions of Polycyclic Aromatic Hydrocarbon (PAH) molecules, fullerenes, or their clusters with atoms or atomic ions. Simple collision models as well as molecular structure calculations are used to aid the interpretations of the present and other experimental results. LÄS MER

  3. 3. An X-ray Based Spectroscopic Study of Structure Influencing Electrons : Fragmentation, Ultrafast Charge Dynamics and Surface Composition

    Författare :Geethanjali Gopakumar; Olle Björneholm; Carl Caleman; Isaak Unger; Ruth Signorell; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Fragmentation; ICD; ETMD; Ultrafast electron dynamics; Surface propensity;

    Sammanfattning : The structure of biomolecules, such as proteins, is intimately connected to the function of the molecules. These structures are often studied using X-ray diffraction. However, the interaction of the X-ray photons with the molecule can excite or ionize its electrons which in turn can causes changes in the molecular structure. LÄS MER

  4. 4. Probing biomolecular fragmentation

    Författare :Nicole Haag; Henrik Cederquist; Henning T. Schmidt; Paul Scheier; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Physics; Fysik; fysik; Physics;

    Sammanfattning : This thesis deals with fragmentation of complex molecular ions, especially biomolecules, in gas phase collision experiments. The aim is to investigate the relations between energy deposition and fragmentation and to shed light on the mechanisms behind energy and charge transfer processes in collisions involving the building blocks of life. LÄS MER

  5. 5. Fragmentation studies of small molecules using synchrotron radiation

    Författare :Emilio Melero García; KTH; []
    Nyckelord :Coincidence; fragmentation;

    Sammanfattning : This thesis presents experimental data on the fragmentationof gas phase sulfur hexafluoride (SF6) and deutheromethane(CD4) molecules after their interaction with synchrotronradiation in the energy range of 70-200 eV. The data wasobtained using coincidence spectroscopy between energy resolvedelectrons and ions (EREICO). LÄS MER