Sökning: "observation metod"

Visar resultat 16 - 20 av 69 avhandlingar innehållade orden observation metod.

  1. 16. Classification models for high-dimensional data with sparsity patterns

    Författare :Annika Tillander; Tatjana Pavlenko; Daniel Thorburn; Patrik Ryden; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; High-dimensionality; supervised classification; classification accuracy; sparse; block-diagonal covariance structure; graphical Lasso; separation strength; discretization; Statistics; statistik;

    Sammanfattning : Today's high-throughput data collection devices, e.g. spectrometers and gene chips, create information in abundance. However, this poses serious statistical challenges, as the number of features is usually much larger than the number of observed units. LÄS MER

  3. 17. High-speed stereo imaging for the characterization of anisotropic viscoelastic media

    Författare :Luca Manzari; Peter Göransson; Jacques Cuenca; Ines Lopez Arteaga; Mathieu Aucejo; KTH; []
    Nyckelord :Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : This thesis proposes an experimental method for observing and characterizing the viscoelastic properties of anisotropic media using high-speed white light stereo imaging. The method uses short-time video recordings of a specimen undergoing forced harmonic motion. LÄS MER

  4. 18. Gas Metal Arc Melt Pool Modelling : Effect of welding position and electromagnetic force mode

    Författare :Pradip Aryal; Isabelle Choquet; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas metal arc welding; Gravitational force; Substrate orientation; Electromagnetic force modelling; Free surface deformation; Computational Fluid Dynamics; OpenFOAM; Gasmetallbågsvetsning; Gravitation; Svetsläge; Elektromagnetisk kraftmodellering; Smältytans rörelser; Computational Fluid Dynamics; OpenFOAM; Production Technology; Produktionsteknik;

    Sammanfattning : Gas metal arc is a high-efficiency and widely used heat source for metal processing applied predominantly in welding and additive manufacturing. In this study, it was applied to welding. LÄS MER

  5. 19. Learning for Task-Oriented Grasping

    Författare :Mia Kokic; Danica Kragic; Barbara Caputo; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; robotics; computer vision; Computer Science; Datalogi;

    Sammanfattning : Task-oriented grasping refers to the problem of computing stable grasps on objects that allow for a subsequent execution of a task. Although grasping objects in a task-oriented manner comes naturally to humans, it is still very challenging for robots. Take for example a service robot deployed in a household. LÄS MER

  7. 20. Delirium after cardiac surgery : risk factors, assessment methods and costs

    Författare :Nina Smulter; Karl Gunnar Engström; Birgitta Olofsson; Micael Appelblad; Staffan Svenmarker; Henrik Bjursten; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiac surgery; Cardiopulmonary bypass; Consequences; Delirium; Detection; Documentation; Economical aspect; Hospitalisation; Risk factors; Screening scales; Thoracic and Cardivascular Suregery; kirurgi; särskilt thoraxkirurgi; omvårdnadsforskning med medicinsk inriktning; Caring Sciences;

    Sammanfattning : Background: Cardiac surgery is considered safe, but postoperative delirium (POD) remains frequently reported. Delirium is characterised by fluctuations in consciousness and cognition, and can be subdivided into disturbed psychomotoric activity (hyperactive and hypoactive) and psychiatric symptom profiles (psychotic and emotional). LÄS MER