Results 81 to 90 of about 445,186 (328)

Adult hearing screening: the Cyprus Pilot Program

open access: yesAudiology Research, 2011
Hearing loss is the third most common condition affecting adults over 65 (Cruickshanks et al., 1998). It can affect quality of life, limiting the ability to communicate efficiently, and leading to isolation, psychological strain, and functional decline ...
C. Thodi   +10 more
doaj   +1 more source

Three-dimensional effects on pure tone fan noise due to inflow distortion [PDF]

open access: yes
Two dimensional, quasi three dimensional and three dimensional theories for the prediction of pure tone fan noise due to the interaction of inflow distortion with a subsonic annular blade row were studied with the aid of an unsteady three dimensional ...
Kobayashi, H.
core   +1 more source

Modulation of auditory responses by modality-specific attention in rat primary auditory cortex [PDF]

open access: yes, 2008
How does attention modulate sensory representations? In order to probe the underlying neural mechanisms, we established a simple rodent model of modality-specific attention.
Anthony M. Zador, Lung-Hao Tai
core   +2 more sources

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

open access: yesAdvanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak   +7 more
wiley   +1 more source

Trans‐Conductive Melt Pool Scaling and its Implications for Parameter Transfer in Laser Powder Bed Fusion for Metals with High Thermal Diffusivity

open access: yesAdvanced Engineering Materials, EarlyView.
Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring   +2 more
wiley   +1 more source

A Comparative Study on the Contralateral Supression Effects of Acoustic Stimulations on Otoacoustic Emissions

open access: yesJournal of Rehabilitation, 2004
Objective: Acoustic stimulation of auditory efferent system causes contralateral shift in the OAEs amplitude. In this study the contralateral suppression effect of pure tone & NBN at center frequencies of 1, 2 & 4 kHz Frequencies has been evaluated in ...
Amir Abbas Ebrahimi   +5 more
doaj  

The efficiency of otoacoustic emissions and pure-tone audiometry in the detection of temporary auditory changes after exposure to high sound pressure levels [PDF]

open access: yes, 2007
Exposure to noise has a harmful effect on the auditory health of workers. AIM: The main goal of this paper was to establish the role of pure-tone audiometry and evoked transient otoacoustic emissions in the detection of small temporary auditory changes ...
Atherino, Ciríaco Cristovão Tavares   +3 more
core   +4 more sources

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

open access: yesAdvanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk   +4 more
wiley   +1 more source

Flight test of a pure-tone acoustic source [PDF]

open access: yes
Static and flight testing of a pure-tone acoustic source were conducted in order to: (1) determine if a 4-KHz tone radiated by a source in flight and mixed with broadband aircraft flyover noise could be measured on the ground with a high degree of ...
Mueller, A. W., Preisser, J. S.
core   +1 more source

Ag Cluster‐Modified K0.5Na0.5NbO3 Piezocatalyst for Enhanced Electrochemical Dinitrogen Reduction Reaction

open access: yesAdvanced Engineering Materials, EarlyView.
Ag cluster‐modified K0.5Na0.5NbO3 acts as an efficient piezocatalyst for electrochemical N2 reduction, enhanced by built‐in electric fields under mechanical actuation. Comparative studies between static and actuated electrodes reveal improved performance under dynamic conditions.
Benedict Witulski   +7 more
wiley   +1 more source

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