Sökning: "research methods"

Visar resultat 16 - 20 av 8665 avhandlingar innehållade orden research methods.

  1. 16. On Estimating Topology and Divergence Times in Phylogenetics

    Författare :Bodil Svennblad; Allan Gut; Tom Britton; Thore Egeland; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; Phylogenetics; Divergence Time; Likelihood based methods; Non-informative prior; bootstrap support; Matematisk statistik;

    Sammanfattning : This PhD thesis consists of an introduction and five papers, dealing with statistical methods in phylogenetics.A phylogenetic tree describes the evolutionary relationships among species assuming that they share a common ancestor and that evolution takes place in a tree like manner. LÄS MER

  3. 17. Evaluating thinning practices and assessment methods for improved management in coniferous production forests in southern Sweden

    Författare :Magnus Persson; Johan Bergh; Lauri Mehtätalo; Linnéuniversitetet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; thinning; within-stand variation; tree species classification; Scots pine; Norway spruce; Sentinel-2; Heureka; Precision forestry; thinning detection; basal area; Forestry and Wood Technology; Skog och träteknik;

    Sammanfattning : Most of our knowledge about wood production of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) and associated silvicultural guidelines are based on field experiments. LÄS MER

  4. 18. Improved data analysis methods for the millimetre-wave observation of strato-mesospheric ozone and winds over Northern Sweden

    Författare :Rita Edit Kajtar; Mathias Milz; Uwe Raffalski; Victoria Barabash; Eliane Maillard Baras; Luleå tekniska universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Atmospheric science; Atmosfärsvetenskap;

    Sammanfattning : This thesis analyses and discusses the work done to improve an ozone retrieval method. The newly implemented method aims to invert emission spectra measured with the millimetre-wave radiometers KIMRA and MIRA2 at the Swedish Institute of Space Physics (IRF) in Kiruna. LÄS MER

  5. 19. The Dynamics of Extratextual Translatorship in Contemporary Sweden : A Mixed Methods Approach

    Författare :Elin Svahn; Yvonne Lindqvist; Kaisa Koskinen; Helle V. Dam; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; translation studies; translation sociology; sociology of translators; translatorship; extratextual translatorship; mixed methods research; qualitative longitudinal research; questionnaire; focus groups; interviews; thematic analysis; Translation Studies; översättningsvetenskap;

    Sammanfattning : This thesis is concerned with Swedish translators and the society in which they work. It begins with an exploration of the concept of translatorship, leading up to a three-part distinction of 1) textual translatorship, 2) paratextual translatorship, and 3) extratextual translatorship. LÄS MER

  7. 20. From Acoustics to Articulation : Study of the acoustic-articulatory relationship along with methods to normalize and adapt to variations in production across different speakers

    Författare :Gopal Ananthakrishnan; Olov Engwall; Gérard Bailly; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Acoustic-Articulatory relationship; speaker normalization;

    Sammanfattning : The focus of this thesis is the relationship between the articulation ofspeech and the acoustics of produced speech. There are several problems thatare encountered in understanding this relationship, given the non-linearity,variance and non-uniqueness in the mapping, as well as the differences thatexist in the size and shape of the articulators, and consequently the acoustics,for different speakers. LÄS MER