Results 11 to 20 of about 89,033 (263)

Acoustic Properties of Breast Fat [PDF]

open access: yesJournal of Ultrasound in Medicine, 2015
ObjectivesThe American College of Radiology Breast Imaging Reporting and Data System (BI‐RADS) atlas for ultrasound (US) qualitatively describes the echogenicity and attenuation of a mass, where fat lobules serve as a standard for comparison. This study aimed to estimate acoustic properties of breast fat under clinical imaging conditions to determine ...
Haidy Gerges, Nasief   +3 more
openaire   +2 more sources

The Swallowing and Voicing Characteristics of Pharyngeal Dystonia: A Single Case Report

open access: yesSouth African Journal of Communication Disorders, 2001
This paper describes the swallowing difficulty and abnormal voicing characteristics of a subject with pharyngeal dystonia. This rare form of dystonia, considered to be a neurological condition resulting in involuntary spasm of the muscles of the pharynx,
Loren Kahn, Heila Jordaan
doaj   +1 more source

Acoustic Properties of Multi-Layer Wool Nonwoven Structures

open access: yesJournal of Natural Fibers, 2020
Wool insulating materials provide good acoustic insulation and are increasingly used for room insulation. These insulating materials are usually produced using nonwoven techniques.
Jan Broda, Marcin Bączek
doaj   +1 more source

Acoustic properties of the normal chest [PDF]

open access: yesEuropean Respiratory Journal, 1995
Laennec invented the stethoscope in 1816 and published a treatise on auscultation in 1819. We then had to wait until the 1950s to observe development of modern devices and methods of recording and signal-processing, which allowed objective studies of lung sounds in time and frequency fields. Tracheobronchial sounds generated by ventilation originate in
F, Dalmay   +3 more
openaire   +2 more sources

Heat Treatment’s Effect on Properties of Polystyrene from Building Demolitions

open access: yesBioResources, 2023
Polystyrene (PS) is a synthetic polymer widely used as a packaging material and in thermal insulation of buildings. At end-of-life, there are not many recycling management options of PS because of the reduced incentive and high cost.
Dafni Foti   +4 more
doaj   +2 more sources

Experimental validation of acoustic and thermal modeling in heterogeneous phantoms using the hybrid angular spectrum method

open access: yesInternational Journal of Hyperthermia, 2021
Purpose The aim was to quantitatively validate the hybrid angular spectrum (HAS) algorithm, a rapid wave propagation technique for heterogeneous media, with both pressure and temperature measurements.
Megan Hansen   +2 more
doaj   +1 more source

PbWO4 Acoustic Properties Measurement by Laser Ultrasonics with the Aim of Optical Damage Recovery

open access: yesCrystals, 2023
The paper, at first, discusses theoretical aspects of acoustic wave propagation in lead tungstate (PWO). After that, it introduces the application of laser ultrasonics to PWO crystals with the aim of measuring the acoustic properties and the absorbed ...
Luigi Montalto   +4 more
doaj   +1 more source

Sound Absorption of Tufted Carpets Produced from Coarse Wool of Mountain Sheep

open access: yesJournal of Natural Fibers, 2023
Coarse wool from Polish mountain sheep, often treated as a useless by-product of sheep husbandry, was used to produce pile carpets with tufting technique.
Jan Broda   +4 more
doaj   +1 more source

Immediate Effects of Cervical Mobilization on Acoustic Properties and Performance in Voice Training Students

open access: yesInternational Journal of Traditional and Complementary Medicine Research, 2023
Objective: The aim of this study was investigation of immediate effects of cervical mobilization on acoustic properties and performance in voice training students. Material-Method: The research was conducted on 15 female volunteer students.
Satı Doğanyiğit   +2 more
doaj   +1 more source

Sound production in the Ponto-Caspian goby Neogobius fluviatilis and acoustic affinities within the Gobius-lineage: implications for phylogeny

open access: yesFrontiers in Marine Science, 2015
The aim of this work is to provide the vocal repertoire of the Ponto-Caspian goby Neogobius fluviatilis and to compare the acoustical properties of this species with those of the other soniferous Mediterranean gobies belonging to the so called “Gobius ...
Stefano Malavasi, Stefano Malavasi
doaj   +1 more source

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