Sökning: "acoustic evaluation"

Visar resultat 16 - 20 av 61 avhandlingar innehållade orden acoustic evaluation.

  1. 16. Articulatory-Acoustic Relationships in Swedish Vowel Sounds

    Författare :Christine Ericsdotter; Olle Engstrand; Björn Lindblom; Peter Ladefoged; Stockholms universitet; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; Swedish vowels; articulatory modelling; MRI; Phonetics; Fonetik;

    Sammanfattning : The goal of this work was to evaluate the performance of a classical method for predicting vocal tract cross-sectional areas from cross-distances, to be implemented in speaker-specific articulatory modelling. The data forming the basis of the evaluation were magnetic resonance images from the vocal tract combined with simultaneous audio and video recordings. LÄS MER

  2. 17. Therapeutic applications of acoustic and electromagnetic energy

    Författare :Vilhelm Ekstrand; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : This thesis focuses on techniques based on electromagnetic and acoustic energy for treatment of a variety of diseases, including development of new techniques as well as improvement and evaluation of existing techniques. The subjects treated are: Provocation of heat generated thrombi in pigs. LÄS MER

  3. 18. Transient acoustic fields studied by pulsed TV holography

    Författare :Staffan Schedin; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : Many of the acoustic events that reach our ears are produced by impacted and vibrating bodies. Pulsed holographic interferometry is a suitable technique to record transient events, like sound waves in air from an impacted body or the wave propagation in solid objects. LÄS MER

  4. 19. Methods for motor noise evaluation and control in electric vehicles

    Författare :David Lennström; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : Complete vehicle, system and component target setting for noise, vibration and harshness (NVH) are important activities within automotive product development. New challenges arise when electric motors are introduced into cars traditionally powered by internal combustion engines (ICE). LÄS MER

  5. 20. Non-infectious rhinitis. Epidemiology and clinic

    Författare :Johan Hellgren; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Non-infectious rhinitis; Paper dust; Asthma; Quality of life; Acoustic rhinometry;

    Sammanfattning : We have assessed self-reported rhinitis in the absence of common cold, called "Non-infectious rhinitis", (NIR). The occurrence of NIR was investigated in a population sample of 2,044 individuals, aged 21-51, in an industrialised county in Sweden who answered a questionnaire relating to NIR and occupational exposure to potential irritants and sensitisers. LÄS MER