Results 31 to 40 of about 8,993,179 (354)

Acoustic Voice Measures in Benign Mass Lesions [PDF]

open access: yesIranian Rehabilitation Journal, 2022
Objectives: The present study aims to compare acoustic voice parameters in patients with vocal cord nodules, polyps, and normal subjects.  Methods: In this cross-sectional case-control study, the participants were selected by convenience sampling ...
Mohaddeseh Rostampourgonbaki   +4 more
doaj  

Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition

open access: yesГорные науки и технологии, 2021
At present, Kuzbass coal strip mines pay great attention to improving quality performance of mining equipment operation, including reliability and durability of components and units.
Aleksey A. Khoreshok   +4 more
doaj   +1 more source

A Study on Affective Dimensions to Engine Acceleration Sound Quality Using Acoustic Parameters

open access: yesApplied Sciences, 2019
The technical performance of recent automobiles is highly progressed and standardized across different manufacturers. This study seeks to derive a semantic space of engine acceleration sound quality for end users and identify the relation with sound ...
Soyoun Moon   +5 more
semanticscholar   +1 more source

Advertisement call and new distribution records from Brazil of Teratohyla midas (Lynch & Duellman, 1973) (Anura, Centrolenidae) [PDF]

open access: yesCheck List, 2018
Data on the distribution and calls of glassfrogs are important for taxonomic and conservation purposes. Herein, we describe the acoustic parameters of Teratohyla midas (Anura, Centrolenidae), with notes on distribution in the Brazilian states of Acre ...
Kássio Castro Araújo   +5 more
doaj   +3 more sources

Comparison and Analysis of Timbre Fusion for Chinese and Western Musical Instruments

open access: yesFrontiers in Psychology, 2022
Timbre fusion is the theoretical basis of instrument acoustics and Chinese and Western orchestral acoustics. Currently, studies on timbre fusion are mainly focused on Western instruments, but there are some studies on the timbre fusion of Chinese ...
Jingyu Liu   +14 more
doaj   +1 more source

Acoustic Method for Estimation of Marine Low-Speed Engine Turbocharger Parameters

open access: yes, 2021
The article presents the acoustic method of marine low-speed engine turbocharger parameter estimation under operating conditions when a prompt assessment of instantaneous turbocharger speed and rotor vibration level is required.
R. Varbanets   +7 more
semanticscholar   +1 more source

Bearing defect diagnosis and acoustic emission. [PDF]

open access: yes, 2003
Acoustic emission (AE) was originally developed for non-destructive testing of static structures, however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David   +3 more
core   +1 more source

Effect of Different Acoustic Parameters on NOx Emissions of Partially Premixed Flame

open access: yesApplied Sciences, 2019
The effects of acoustic frequency (f)/0–400 Hz and amplitude (A)/0–1400 Pa on nitrogen oxides (NOx) emissions of a partially premixed flame were investigated experimentally.
K. Deng   +4 more
semanticscholar   +1 more source

ION SOLVATION IN SALTS OF BIOLOGICALLY IMPORTANT RARE EARTH METALS WITH AQUEOUS SUGAR ALCOHOL (SORBITOL) MIXED-SOLVENT SYSTEMS

open access: yesJournal of Taibah University for Science, 2017
Acoustic investigations have examined the salts of rare earth metals, such as lanthanum(III) chloride, in sorbitol-water mixed solvent systems of different concentrations at 303.15 K temperature and 1 atmospheric pressure.
Jayanta Kumar Dash, Susmita Kamila
doaj   +1 more source

Optimizing passive acoustic sampling of bats in forests [PDF]

open access: yes, 2014
Passive acoustic methods are increasingly used in biodiversity research and monitoring programs because they are cost-effective and permit the collection of large datasets.
Jérémy S. P. Froidevaux   +7 more
core   +1 more source

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