نتایج جستجو برای: lateral vibration

تعداد نتایج: 174241  

2014
Melina Evangelista Whitaker Jeniffer de Cássia Rillo Dutka Rita de Cássia Moura Carvalho Maria Inês Pegoraro-Krook

Conflict of interest: non-existent fricative consonants1-6. In normal morphological and/or functional conditions, these consonants are produced with partial constriction of the airway between the tongue apex and the alveolus, and they may be voiced (with vibration of vocal folds, [z]) or unvoiced (without vibration of vocal folds, [s]). Acoustically, voiced fricatives are characterized by the p...

Journal: :The Journal of the Acoustical Society of America 2000
J G Svec J Horácek F Sram J Veselý

The study presents the first attempt to investigate resonance properties of the living vocal folds by means of laryngoscopy. Laryngeal vibrations were excited via a shaker placed on the neck of a male subject and observed by means of videostroboscopy and videokymography (VKG). When the vocal folds were tuned to the phonation frequency of 110 Hz and sinusoidal vibration with sweeping frequency (...

Journal: :The Journal of experimental biology 1991
C Shingyoji I R Gibbons A Murakami K Takahashi

The heads of live spermatozoa of the sea urchin Hemicentrotus pulcherrimus were held by suction in the tip of a micropipette mounted on a piezoelectric device and vibrated either laterally or axially with respect to the head axis. Within certain ranges of frequency and amplitude, lateral vibration of the pipette brought about a stable rhythmic beating of the flagella in the plane of vibration, ...

2014
Anna Cronström Eva Ageberg

BACKGROUND Patients with anterior cruciate ligament (ACL) injury often exhibit reduced movement quality during functional tasks in the form of a knee-medial-to-foot position (KMFP). This movement pattern is suggested to be more common in women than in men, but the possible contributing sensorimotor factors for this altered knee position are poorly studied in these patients. The aim of this stud...

Journal: :The Journal of the Acoustical Society of America 2002
Ingo R Titze Brad H Story

A low-dimensional, self-oscillation model of the vocal folds is used to capture three primary modes of vibration, a shear mode and two compressional modes. The shear mode is implemented with either two vertical masses or a rotating plate, and the compressional modes are implemented with an additional bar mass between the vertically stacked masses and the lateral boundary. The combination of the...

2015
Y. Reuland

This paper presents a methodology for reducing the uncertainty related to the structural behaviour of an existing building in view of a vulnerability assessment regarding future earthquake actions. Estimating the lateral load resistance is a step towards evaluating the capacity of a structure to resist earthquake actions. The prediction of structural behaviour by numerical models is inevitably ...

Journal: :Current Biology 2010
Masato Yoshizawa Špela Gorički Daphne Soares William R. Jeffery

How cave animals adapt to life in darkness is a poorly understood aspect of evolutionary biology [1]. Here we identify a behavioral shift and its morphological basis in Astyanax mexicanus, a teleost with a sighted surface-dwelling form (surface fish) and various blind cave-dwelling forms (cavefish) [2-4]. Vibration attraction behavior (VAB) is the ability of fish to swim toward the source of a ...

2017
Akihiro Imaizumi Shogo Okamoto Yoji Yamada

When a human rubs a contactor that is vibrating laterally at 3–10 Hz with an amplitude of ~1 mm, the friction is perceived as being greater than that sensed when touching a stationary contactor. This phenomenon could be exploited for a new vibrotactile approach to friction perception; however, the principles behind it have yet to be explained. In this study, we hypothesized that the perceived f...

Journal: :The Journal of physiology 1999
Y P Ivanenko R Grasso F Lacquaniti

1. We studied the effect of gaze orientation on postural responses evoked by vibration of neck dorsal muscles or by galvanic stimulation of the vestibular system during quiet standing in healthy humans. Various gaze orientations were obtained by different combinations of horizontal head-on-feet (-90, -45, 0, 45, 90 deg) and eye-in-orbit (-30, 0, 30 deg) positions. The instantaneous centre of fo...

2013
Se Woon Choi Bub Ryur Kim Hong Min Lee Yousok Kim Hyo Seon Park

High-rise buildings subjected to lateral loads such as wind and earthquake loads must be checked not to exceed the limits on the maximum lateral displacement or the maximum inter-story drift ratios. In this paper, a sensing model for deformed shapes of a building structure in motion is presented. The deformed shape sensing model based on a 2D scanner consists of five modules: (1) module for acq...

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