Sökning: "spektrum"

Visar resultat 26 - 30 av 151 avhandlingar innehållade ordet spektrum.

  1. 26. Multi-Scale Surface Water-Groundwater Interaction : Implications for GroundwaterDischarge Patterns

    Författare :Babak Brian Mojarrad; Anders Wörman; Joakim Riml; Jan Fleckenstein; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; groundwater flow; hyporheic zone; multi-scale modeling; spectral analysis; fragmentation of discharge zones; characteristic parameters; Hydraulik och teknisk hydrologi; Hydraulic and Hydrologic Engineering;

    Sammanfattning : Rivers and aquifers are continuously exchanging water, driven by processes that occur on various temporal and spatial scales, ranging from small streambed features to large geological structures. The interaction between these two components occurs in permeable sediments below the stream channel, called the hyporheic zone. LÄS MER

  3. 27. Crossings and maxima in Gaussian fields and seas

    Författare :Eva Sjö; Matematisk statistik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; operations research; Statistics; random waves; extremes; generalised Rice s formula; level-crossings; Gaussian random fields; programming; actuarial mathematics; Statistik; operationsanalys; programmering; aktuariematematik;

    Sammanfattning : In this thesis the focus is on crossing points in random fields and the probability distributions of various crossing variables in different applications. The crossing points are generalisations to random fields of points of level crossings by stochastic processes. LÄS MER

  4. 28. Investigations of Heavy Elements in Am and HgMn stars

    Författare :Linus Dolk; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HgMn stars; spectroscopy; heavy elements; Astronomi; Astronomy; Chemically peculiar stars; Am star; Fysicumarkivet A:2002:Dolk;

    Sammanfattning : The relationship between the HgMn and Am classes of chemically peculiar stars has been investigated primarily by observing abundances of heavy elements, including Pr, Nd, Hg, Tl and Bi. The main objective of the investigation has been to gather observational evidence to provide a better understanding of the mechanisms producing the abundance anomalies of these stars, and to establish the relationship between the two classes. LÄS MER

  5. 29. Assessment of Application of Participatory Methods for Complex Adaptive Systems  in the Public Sector

    Författare :Maksims Kornevs; Sebastiaan Meijer; Jannicke Baalsrud Hauge; Paul Grogan; KTH; []
    Nyckelord :: participatory methods; complex adaptive system; public sector; change process; assessment; participativa metoder; komplext adaptivt system; offentlig sektor; förändringsprocess; bedömning;

    Sammanfattning : The provision of services by the public sector is the result of a complex adaptive system at work, and involves a large number of stakeholders from different institutions and organisations. In the era of rapid change in requirements and expectations from the public sector, the management of change processes asks for the involvement of many stakeholders from different layers and positions. LÄS MER

  7. 30. Insect-specific viruses as control measures for West Nile virus infection of animals and humans

    Författare :Pontus Öhlund; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Myggor tjänar som vektor för många medicinskt viktiga virus och dem associerade virussjukdomarna orsakar en stor hälsobörda över hela världen. Myggburna virus bibehålls i naturen genom en enzootisk cykel, där myggan förvärvar viruset genom ett viremiskt blodmål från ett infekterat ryggradsdjur. LÄS MER