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Lexicon for classifying ear-canal shapes [PDF]

open access: yesScientific Reports, 2023
The ear canal is usually described as an S-shaped funnel. In attempting to classify ear-canal shapes obtained from point clouds digitized from molds of 300 ears, the problem of designing criteria for distinguishing and organizing the canal shapes arose ...
J. C. Martinez   +9 more
doaj   +4 more sources

Mass in the ear canal [PDF]

open access: greenPostgraduate Medical Journal, 2003
A 70 year old woman presented to outpatient department with a history of gradually progressive hearing loss in the right ear of one year’s duration. There was no history of ear discharge, pain, tinnitus, or vertigo. Examination revealed a firm, …
Shakuntala Ghosh   +2 more
openalex   +4 more sources

The Loudness of Suctioning in the Ear Canal. [PDF]

open access: yesCureus, 2021
Aim To determine the loudness of suctioning in the ear canal with different-sized suctions and various mediums. Aural microsuctioning is commonly used in the otolaryngologist's office setting for cerumen removal and aural toilet. We hypothesize that the intensity of the sound would increase with increasing viscosity of the medium and increasing suction
Byrd C   +3 more
europepmc   +5 more sources

The shape of the ear canal [PDF]

open access: yesPhysics Letters A, 2005
It is proved that the measurement of the acoustic pressure on the ear membrane allows one to determine the shape of the ear $ uniquely.
arxiv   +4 more sources

Speech-dependent Modeling of Own Voice Transfer Characteristics for In-ear Microphones in Hearables [PDF]

open access: yes, 2023
Many hearables contain an in-ear microphone, which may be used to capture the own voice of its user in noisy environments. Since the in-ear microphone mostly records body-conducted speech due to ear canal occlusion, it suffers from band-limitation effects while only capturing a limited amount of external noise.
Doclo, Simon   +2 more
arxiv   +3 more sources

Cochlear-bone wave can yield a hearing sensation as well as otoacoustic emission [PDF]

open access: yes, 2014
A hearing sensation arises when the elastic basilar membrane inside the cochlea vibrates. The basilar membrane is typically set into motion through airborne sound that displaces the middle ear and induces a pressure difference across the membrane. A second, alternative pathway exists, however: stimulation of the cochlear bone vibrates the basilar ...
Reichenbach, T., Tchumatchenko, T.
arxiv   +3 more sources

Mechanism Cleaning of the Ear Canal [PDF]

open access: yesInventions, 2022
The cleaning of the ear canal is very important, and it is crucial that it is performed by an otolaryngologist as it requires a high level of competence and skill.
Rocío Rodríguez   +3 more
doaj   +2 more sources

Using a one-dimensional finite-element approximation of Webster's horn equation to estimate individual ear canal acoustic transfer from input impedances [PDF]

open access: yes, 2023
In many applications, knowledge of the sound pressure transfer to the eardrum is important. The transfer is highly influenced by the shape of the ear canal and its acoustic properties, such as the acoustic impedance at the eardrum. Invasive procedures to measure the sound pressure at the eardrum are usually elaborate or costly. In this work, we propose
Blau, Matthias   +3 more
arxiv   +3 more sources

Changes functional prediction of ear canal flora in chronic bacterial otitis externa [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology
ObjectiveTo investigate ear canal microflora’s structure, composition and function in patients with chronic bacterial otitis externa.MethodsA case-control study design method was used to collect the ear canal secretions from 14 patients with chronic ...
Tingting Duan   +6 more
doaj   +2 more sources

Retained Cotton Bud-induced Severe Otitis Externa That Mimics Malignant Otitis Externa [PDF]

open access: yesInternational Journal of Gerontology, 2015
The potential complications of cotton bud use are not well known in the elderly population. Here, we presented a case of cotton bud misuse. An elderly man who had long-standing diabetes mellitus, chronic otorrhea, and right-sided otalgia was poorly ...
Hyung Chae Yang   +2 more
doaj   +3 more sources

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