BACKGROUND AND OBJECTIVES This paper aimed at evaluating the characteristics of high-frequency (1,000 Hz) acoustic admittance (ya) for the neonates with transient evoked otoacoustic emissions (TEOAE) as either pass or refer group. SUBJECTS AND METHODS Using a 1,000 Hz probe tone, 297neonates (152 male, 145 female aged 0-104 days old) were evaluated. Tympanometric parameters admittance value a...

Various rehabilitation robots have been employed to recover the motor function of stroke patients. To improve the effect of rehabilitation, robots should promote patient participation and provide compliant assistance. This paper proposes an adaptive admittance control scheme (AACS) consisting of an admittance filter, inner position controller, and electromyography (EMG)-driven musculoskeletal m...

[1] The spectral relations (admittance and correlation) between gravity and topography are often used to obtain information on the density structure, flexural support, and heat flow of planetary lithospheres. Mapping spatial variations in these quantities requires spatiospectral analysis techniques. Here we describe the application of a directional, continuous spherical wavelet transform using ...

Invited for this issue's Front Cover is the group of Professor Fabio La Mantia at University Bremen (Germany). The cover picture shows developed theoretical variance error on admittance and how expression captures experimental values standard deviations real imaginary parts admittance. Read full text Research Article 10.1002/celc.202200109.

Previous studies have proposed methods for admittance and impedance control for a finger-arm robot using the manipulability of the finger. Based on the previous theories, the authors have proposed an admittance control for a multifinger arm robot using the manipulability of the fingers in this study. Two 3-DOF fingers are attached to the end-effector of a 6DOF arm to configure a multi-finger ar...

An improved version of the multimodal admittance method in acoustic waveguides with varying cross sections is presented. This method aims at a better convergence with respect to the number of transverse modes that are taken into account. It is based on an enriched modal expansion of the pressure: the N first modes are the local transverse modes and a supplementary (N+1)th mode, called boundary ...

Three acoustic admittance measurements (tympanometric peak pressure, peak compensated static acoustic admittance, and tympanometric width) were compared across seven commercially available acoustic immittance systems. Forty-nine adult subjects (45 females and 4 males), 16 to 50 years of age (mean = 27.7 years), with normal middle ear function participated in this investigation. Small but statis...

We report on the GHz complex admittance of a chiral one-dimensional ballistic conductor formed by edge states in the quantum Hall regime. The circuit consists of a wide Hall bar (the inductor L) in series with a tunable resistor (R) formed by a quantum point contact. Electron interactions between edges are screened by a pair of side gates. Conductance steps are observed on both real and imagina...

In this paper, we propose a simplified variable admittance controller applied to robot joint control. It is based on a virtual agonist-antagonist mechanism (VAAM) consisting of contractile and parallel elements (CEs and PEs). ”Virtual” here means that every joint physically actuated by a standard servo motor can produce variably compliant motions as if it were driven by a pair of agonist and an...

In this study, we extended the conventional admittance control and developed a new power augmentation technology that supports the upper extremity movements of humans using only the electromyography (EMG) signals of agonists. First, we selected the EMG signals of two agonists, the biceps brachii and clavicular part of the deltoid, to control the elbow and shoulder joints, respectively. We then ...