The physics of small‐amplitude oscillation of the vocal folds

1988 ◽  
Vol 83 (4) ◽  
pp. 1536-1552 ◽  
Author(s):  
Ingo R. Titze
Keyword(s):  
Small Amplitude ◽  
Vocal Folds ◽  
Amplitude Oscillation ◽  
Small Amplitude Oscillation

The physiology of vocal cord movement

2018 ◽  
Author(s):  
Stephanie Cooper
Keyword(s):  
Vocal Cord ◽  
Outcome Measures ◽  
Small Amplitude ◽  
Vocal Folds ◽  
Amplitude Oscillation ◽  
Small Amplitude Oscillation

This chapter discusses Titze’s paper on the physics of small-amplitude oscillation of the vocal folds including the design of the study (outcome measures, results, conclusions, and a critique).

Poisson's Ratio of Hot Asphalt Mixtures Determined by Relaxation and Small Amplitude Oscillation Test

2014 ◽  
Vol 43 (2) ◽  
pp. 20130325 ◽  
Author(s):  
Josef Zak ◽  
Jiri Stastna ◽  
Jiri Vavricka ◽  
Kristyna Milackova ◽  
Lukas Kasek ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Small Amplitude ◽  
Asphalt Mixtures ◽  
Poisson's Ratio ◽  
Amplitude Oscillation ◽  
Oscillation Test ◽  
Small Amplitude Oscillation

On the Dispersion and Small-Amplitude Oscillation Measurements of High Amylopectin Potato Starch

2003 ◽  
Vol 55 (34) ◽  
pp. 121-130 ◽  
Author(s):  
Fernando E. Ortega-Ojeda ◽  
Helena Larsson ◽  
Ann-Charlotte Eliasson
Keyword(s):  
Small Amplitude ◽  
Potato Starch ◽  
Amplitude Oscillation ◽  
Small Amplitude Oscillation

scholarly journals Small Amplitude Oscillation Frequency Sweep of Lamellar Liquid Crystal

2005 ◽  
Vol 21 (12) ◽  
pp. 1411-1414
Author(s):  
WANG Hong-Xia ◽  
◽  
ZHANG Gao-Yong ◽  
LIU Dian-Sheng ◽  
ZHANG Xin-Wei ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Oscillation Frequency ◽  
Small Amplitude ◽  
Frequency Sweep ◽  
Lamellar Liquid Crystal ◽  
Amplitude Oscillation ◽  
Small Amplitude Oscillation

scholarly journals Resonance Control Based on Hydrodynamic Analysis for Underwater Direct Drive Wave Energy Converter

2021 ◽  
Vol 9 (11) ◽  
pp. 1192
Author(s):  
Yang Li ◽  
Lei Huang ◽  
Peiwen Tan ◽  
Minshuo Chen ◽  
Junquan Chen
Keyword(s):  
Wave Energy ◽  
Control Strategy ◽  
Small Amplitude ◽  
Wave Energy Converter ◽  
Direct Drive ◽  
Energy Converter ◽  
Hydrodynamic Analysis ◽  
Amplitude Oscillation ◽  
Resonance Control ◽  
Small Amplitude Oscillation

Wave energy has great prospect among many forms of marine renewable energy for its high density and storage. This paper proposes an underwater direct drive wave energy converter (UDDWEC), which is composed of a submerged point absorbing buoy and a linear-rotating axial flux permanent magnetic generator (LR-AFPMG). In addition, a maximum energy capture control strategy, resonance control, is derived for UDDWEC, based on small amplitude oscillation and hydrodynamic analysis. The proposed control strategy assumes the availability of sea condition such as wave height and period. This control strategy has three main characteristics. Firstly, this control strategy is derived based on hydrodynamic analysis of the submerged point absorber. Added mass, radiation damping and other hydrodynamic parameters are obtained to participate in UDDWEC dynamic model. Secondly, a LR-AFPMG is applied as power take-off device to realize energy conversion, which can improve the power density. Thirdly, small amplitude oscillation can be changed into long stroke rotary motion through the LR-AFPMG. The reliability and effectiveness of the proposed control strategy are assessed at various operation conditions for a heaving system and the validity for the UDDWEC is verified.

scholarly journals Gamma function method for the nonlinear cubic-quintic Duffing oscillators

2021 ◽  
pp. 146134842110446
Author(s):  
Kang-Jia Wang ◽  
Guo-Dong Wang
Keyword(s):  
Approximate Solution ◽  
Gamma Function ◽  
Small Amplitude ◽  
Function Method ◽  
Amplitude Oscillation ◽  
One Step ◽  
First Time ◽  
Small Amplitude Oscillation

In this article, the gamma function method, for the first time ever, is used to solve the nonlinear cubic-quintic Duffing oscillators. The nonlinear cubic-quintic Duffing oscillators with and without the damped and quadratic terms are considered respectively. By the gamma function method, it only needs one-step to get the approximate solution. The comparisons with the existing solutions reveal that the proposed method is simple but effective in solving the small amplitude oscillation.

Viscoelastic Properties of Rabbit Vocal Folds after Augmentation

2003 ◽  
Vol 128 (3) ◽  
pp. 401-406 ◽  
Author(s):  
Stellan Hertegård ◽  
Åke Dahlqvist ◽  
Claude Laurent ◽  
Assunta Borzacchiello ◽  
Luigi Ambrosio
Keyword(s):  
Dynamic Viscosity ◽  
Viscoelastic Properties ◽  
Small Amplitude ◽  
Vocal Fold ◽  
Vocal Folds ◽  
Short Term ◽  
Glottal Insufficiency ◽  
Thyroarytenoid Muscle ◽  
Small Amplitude Oscillation

BACKGROUND: Vocal fold function is closely related to tissue viscoelasticity. Augmentation substances may alter the viscoelastic properties of vocal fold tissues and hence their vibratory capacity. OBJECTIVES: We sought to investigate the viscoelastic properties of rabbit vocal folds in vitro after injections of various augmentation substances. STUDY DESIGN AND SETTING: Polytetrafluoroethylene (Teflon), cross-linked collagen (Zyplast), and cross-linked hyaluronan, hylan b gel (Hylaform) were injected into the lamina propria and the thyroarytenoid muscle of rabbit vocal folds. Dynamic viscosity of the injected vocal fold as a function of frequency was measured with a Bohlin parallelplate rheometer during small-amplitude oscillation. RESULTS: All injected vocal folds showed a decreasing dynamic viscosity with increasing frequency. Vocal fold samples injected with hylan b gel showed the lowest dynamic viscosity, quite close to noninjected control samples. Vocal folds injected with polytetrafluoroethylene showed the highest dynamic viscosity followed by the collagen samples. CONCLUSIONS: The data indicated that hylan b gel in short-term renders the most natural viscoelastic properties to the vocal fold among the substances tested. This is of importance to restore/preserve the vibratory capacity of the vocal folds when glottal insufficiency is treated with injections.

Sign in / Sign up

Export Citation Format

Share Document