Sökning: "tilt control"

Visar resultat 21 - 25 av 41 avhandlingar innehållade orden tilt control.

  1. 21. Efficient Spatiotemporal Filtering and Modelling

    Författare :Jörgen Karlholm; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The thesis describes novel methods for efficient spatiotemporal filtering and modeling. A multiresolution algorithm for energy-based estimation and representation of local spatiotemporal structure by second order symmetric tensors is presented. The problem of how to properly process estimates with varying degree of reliability is addressed. LÄS MER

  3. 22. The emotional motor system and gastrointestinal symptoms

    Författare :Pontus Karling; Lars Agréus; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anxiety; ANS; autonomic nervous system; cortisol; DST; emotional motor system; functional; gastrointestinal symptoms; GSRS-IBS; gut; HADS; heart rate variability; HPA axis; IBS; irritable bowel syndrome; stress; unipolar depression; val158met COMT polymorphism; Gastroenterology; Gastroenterologi;

    Sammanfattning : There is a significant comorbidity between anxiety/depression and functional gastrointestinal syndromes, such as irritable bowel syndrome (IBS) and functional dyspepsia. The pathophysiological link between emotions and the gut is not known. LÄS MER

  4. 23. Methods of Multi-Conjugate Adaptive Optics for Astronomy

    Författare :Ralf Flicker; Astronomi - Genomgår omorganisation; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Adaptive optics; anisoplanatism; laser guide stars; performance estimation; wavefront reconstruction; extremely large telescopes; optics; Electromagnetism; Elektromagnetism; acoustics; Astronomy; akustik; space research; optik; multi-conjugate; cosmic chemistry; Astronomi; rymdvetenskap; kosmisk kemi; Fysicumarkivet A:2003:Flicker;

    Sammanfattning : This work analyses several aspects of multi-conjugate adaptive optics (MCAO) for astronomy. The research ranges from fundamental and technical studies for present-day MCAO projects, to feasibility studies of high-order MCAO instruments for the extremely large telescopes (ELTs) of the future. LÄS MER

  5. 24. Ride comfort and motion sickness in tilting trains

    Författare :Johan Förstberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tilting train; Ride comfort; Motion sickness; Simulator; Experiments;

    Sammanfattning : This thesis presents a systematic study of human responses to different motions and strategies of car body tilt control regarding ride comfort, working/reading ability and motion sickness on high-speed tilting trains. Experiments with test subjects were performed in a tilting train on curved track as well as in a moving vehicle simulator. LÄS MER

  7. 25. Grain Boundary Structure of YBa2Cu3O7-δ High Tc Superconductors

    Författare :José A Alarco; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The microstructures of YBa2Cu3O7-.delta. (YBCO) high Tc superconducting materials have been studied using analytical electron microscopy. The effects of processing parameters on the interfacial microstructures have been investigated in both bulk materials and thin films. LÄS MER