A Preliminary Analysis of Tympanometric Parameters in a Local Multiethnic Population
Audiology Research, 2020 Background: Tympanometry is a routine clinical test ordered at the Department of Otolaryngology, Ear, Nose and Throat (ENT) at Changi General Hospital (CGH). In combination with the pure tone audiogram, tympanograms aid in the diagnostic value of various
Kenneth Wei De Chua
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Experimentally testing impedance boundary conditions for acoustic liners with flow: Beyond upstream and downstream [PDF]
Journal of Sound and Vibration, 2020 Impedance eduction experiments on acoustic liners with flow have systematically shown the educed impedance depending on the direction of the incident wave. Recent attempts to model this dependence include impedance boundary conditions with an additional degree of freedom. In this case, both upstream and downstream acoustic sources must be used to educe
André Mateus Netto Spillere +3 more
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Identification of uncertainty levels of acoustic properties of biocomposites under different mounting conditions in impedance tube tests [PDF]
Noise Control Engineering Journal, 2021 Impedance tube method is widely used to measure acoustic properties of materials. Although this method yields reliable acoustic properties for soft textured materials, uncertainty levels of measured acoustic properties for hard materials, including biocomposites, can be quite large, mainly due to uncertain mounting conditions.
Garip Genç +4 more
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Multifrequency tympanometry in infants
International Archives of Otorhinolaryngology, 2012 Introduction: The use of conventional tympanometry is not sufficiently sensitive to detect all cases of middle ear changes, and this hinders accurate diagnosis.
Moraes, Tamyne Ferreira Duarte +2 more
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Tympanometry and CT Measurement of Middle Ear Volumes in Patients with Unilateral Chronic Otitis Media [PDF]
Clinical and Experimental Otorhinolaryngology, 2008 ObjectivesThe goals of the study were to compare the middle ear (ME) volumes from both normal and lesioned ears, and these ME volumes were measured by a digital image processing computed tomography (CT) program in patients with unilateral chronic otitis ...
Jae-Yoon Ahn +7 more
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Test of single degree of freedom acoustic treatment impedance models for multimodal acoustic propagation in duct with flow [PDF]
The Journal of the Acoustical Society of America, 2017 Passive acoustic treatments, also called liners, are the main solution to noise problems. The Single Degree Of Freedom (SDOF) acoustic treatment, composed of a thin material (perforated plate) affixed to air cavities with a rigid bottom, constitutes a solution.
Ryan, Baccouche +2 more
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Enhancement in fire retardant Properties of Coconut Coir/Polyurethane acoustic composites
Journal of Natural Fibers, 2022 This study aims to enhance the flammability properties of coconut coir and polyurethane resin sound-absorbing material. Sound absorption properties of the material for normal sound incidence were measured using impedance tube setup up based on ISO 10534 ...
Nirmala H. Bhingare, S. Prakash
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The potential of date palm midribs-based fabric acoustic panels for sustainable interior design
Ain Shams Engineering Journal, 2023 This paper presents an experimental study of acoustic absorption of novel fabric acoustic panels utilizing non-woven fabric cores and fabric facings made of date palm midribs-fibers; to be used as absorbent panels for spaces with privacy needs.
E.A. Darwish, Mohamad Midani
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The impact of regular diving on the condition of the middle ear
International Journal of Occupational Medicine and Environmental Health, 2021 Objectives It is generally held that exposure to both high-pressure and long-lasting contact with water makes diving a potentially hazardous sports activity as far as the ears are concerned.
Olgierd Stieler +6 more
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Clinical evaluation of Eustachian tube transience and function in patients with different types of increased nasal resistance [PDF]
Vojnosanitetski Pregled, 2009 Background/Aim. Eustachian tube is a connection between throat and the middle ear. Inflammatory processes and malformations of nasal cavity could lead to dysfunction of the whole upper respiratory tract, this emphasizing the evaluation of the Eustachian ...
Andrić-Filipović Snežana +3 more
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