BACKGROUND AND PURPOSE The increased cochlear signal on FLAIR images in patients with acoustic neuroma is explained by an increased concentration of protein in the perilymphatic space. However, there is still debate whether there is a correlation between the increased cochlear FLAIR signal and the degree of hearing disturbance in patients with acoustic neuroma. Our aim was to investigate the cl...

1 Abstract-A new parameter was recently developed by Jeffery M. Fisher (M.S.) for use in Active Structural Acoustic Control (ASAC) which showed potential for achieving better sound radiation reduction than current parameters. This parameter, known as “Vcomp,” was shown analytically to produce results comparable to control of radiated sound power and volume velocity on a simply supported plate. ...

voice parameters on a large voice database Dirk Michaelis and Hans Werner Strube Drittes Physikalisches Institut Georg-August-Universit at G ottingen B urgerstrasse 42-44 D-37073 G ottingen Phone +49-551 397731, 397729 Telefax +49-551 397720 ABSTRACT A new acoustic parameter for the description of hoarseness has been developed: The Glottal-to-Noise Excitation Factor (GNE-Factor). It shows t...

We have made precision measurements of the frequency of a collective mode of the superfluid 3 He-B order parameter, the J = 2 − imaginary squashing mode. Measurements were performed at multiple pressures using interference of transverse sound in an acoustic cavity. Transverse waves propagate in the vicinity of this order parameter mode owing to off-resonant coupling. At the crossing of the soun...

abstract   a cystic acoustic neurinoma almost entirely consists of a cystic component and is a well recognized subtype of acoustic schwannoma. we report a case of a 40-year- old male patient who presented with clinical features of a left cerebello-pontine angle mass lesion and ct scan findings mimicking the diagnosis of an epidermoid cyst. however intraoperative and histopathological findings w...

In recent years many works have indicated that a series of interesting nonlinear acoustical effects have been observed in the range of biomedical intensities and frequencies. This new phenomenon in medical ultrasound has attracted immediate interest of many researchers. Two topics on this aspect will be presented in this paper. (1) The acoustical nonlinearity parameter imaging in reflection mod...

Objectives: Voice is influenced by personality. However, it is still questionable which acoustic features are influenced by personality traits. This study aimed to investigate the relationship between acoustic characteristics and personality dimensions. Methods: Thirty-three participants with dysphonia and 33 participants without dysphonia were recruited to take part in this cross-sectional st...

We report an experimental and numerical characterization of three-dimensional acoustic streaming behavior in small droplets of volumes (1-30 μl) induced by surface acoustic wave (SAW). We provide a quantitative evidence of the existence of strong nonlinear nature of the flow inertia in this SAW-driven flow over a range of the newly defined acoustic parameter F{NA}=Fλ/(σ/R_{d})≥0.01, which is a ...