Počet záznamů: 1
Development of self-oscillating human vocal folds prosthesis
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SYSNO ASEP 0453090 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Development of self-oscillating human vocal folds prosthesis Tvůrce(i) Horáček, Jaromír (UT-L) RID, ORCID Zdroj.dok. Proceedings of ICOVP 2015. - Guwahati : Indian Institute of Technology Guwahati, 2015 / Dwivedy S.K. ; Tiwari R. Poč.str. 1 s. Forma vydání Nosič - C Akce ICOVP 2015 - International Conference on Vibration Problems /12./ Datum konání 14.12.2015-17.12.2015 Místo konání Guwahati Země IN - Indie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. IN - Indie Klíč. slova fluid-Structure Interaction ; flutter ; biomechanics of voice ; modeling of Phonation Vědní obor RIV BI - Akustika a kmity CEP GAP101/12/1306 GA ČR - Grantová agentura ČR Institucionální podpora UT-L - RVO:61388998 Anotace The study compares results of in vitro measurements of phonation characteristics performed on three types of developed 1:1 scaled artificial models of human vocal folds. The vocal folds made of silicon rubber were excited by airflow with synchronous measurement of the flow-induced vocal fold vibrations using a high speed camera, the subglottal dynamic and mean air pressures, the radiated sound and the impact stress between oscillating vocal folds during their collisions. The airflow coming from the model of trachea was increasing from the phonation threshold up to the airflow rate and subglottal pressure, which are in the range of physiologically relevant values in a normal human voice production. The measured phonation characteristics are in good agreement with the values found in human larynges. The knowledge of these characteristics for the vocal folds replica can be useful for experimental verification of developed sophisticated 3D computational finite element models of phonation due to relatively exactly defined input material and geometrical parameters, which is problematic to obtain reliably in humans. However, the main aim of the study is to contribute to the development of a voice prosthesis which could be used in humans after laryngectomy. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2016
Počet záznamů: 1