Sökning: "Per Linusson"

Hittade 2 avhandlingar innehållade orden Per Linusson.

  1. 1. Single-photon multiple ionization processes studied by electron coincidence spectroscopy

    Författare :Per Linusson; Mats Larsson; Raimund Feifel; Stephen Price; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; photoionization; multiple ionization; autoionization; synchrotron radiation; electron coincidence spectroscopy; fysik; Physics;

    Sammanfattning : This thesis is based on studies of multiple ionization of atoms and molecules induced by the absorption of a single photon. For the experimental investigations a time-of-flight magnetic bottle spectrometer has been used to detect the emitted electrons in coincidence. LÄS MER

  3. 2. Changes in plant community diversity and management effects in semi-natural meadows in southern Sweden

    Författare :Anna-Carin Linusson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; Vegetation; Species diversity; Management intensity; Community diversity; Ordination; Växtekologi;

    Sammanfattning : The objectives of this thesis were to: 1) survey the vegetation in semi-natural meadows in south-central Sweden, 2) discern meadow vegetation changes in eight semi-permanent plots between studies performed in the 1960s and in 1990, 3) experimentally investigate the effects of variations in management intensity in one dry and one mesic meadow, 4) experimentally investigate the effects of different management practices or absence of management on species dynamics in meadow vegetation. 1. LÄS MER