Articles with "acoustic analysis" as a keyword



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Acoustic analysis of neonatal breath sounds using digital stethoscope technology

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Published in 2020 at "Pediatric Pulmonology"

DOI: 10.1002/ppul.24633

Abstract: There is no published literature regarding the use of the digital stethoscope (DS) and computerized breath sound analysis in neonates, despite neonates experiencing a high burden of respiratory disease. We aimed to determine if the… read more here.

Keywords: breath sounds; digital stethoscope; acoustic analysis;
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An efficient technique for the indirect BEM for multi-frequency acoustic analysis using Green’s function approximation

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Published in 2018 at "Journal of Mechanical Science and Technology"

DOI: 10.1007/s12206-018-0404-5

Abstract: We present an efficient technique for multi-frequency acoustic analysis by the variational indirect boundary element method. The system coefficient matrix of the boundary element method is frequency dependent and requires cumbersome computation in multifrequency acoustic… read more here.

Keywords: technique; frequency; acoustic analysis; multi frequency ... See more keywords
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Misfire detection of an internal combustion engine based on vibration and acoustic analysis

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Published in 2021 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"

DOI: 10.1007/s40430-021-03052-y

Abstract: A Misfire event is an unwanted phenomenon that compromises the regular operation of the engine, increasing the pollution of emission gases and decreasing its efficiency. Therefore, smart systems that detect misfire ensure better engine operation… read more here.

Keywords: methodology; vibration; misfire; engine ... See more keywords
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Electroglottographic and acoustic analysis of voice in children with vocal nodules.

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Published in 2019 at "International journal of pediatric otorhinolaryngology"

DOI: 10.1016/j.ijporl.2019.03.030

Abstract: PURPOSE Vocal fold nodules are usually caused by voice overuse or vocal hyperfunction, and their symptoms include persistent hoarseness - a disturbance in the vocal fold vibrations which results in a turbulent passage of air… read more here.

Keywords: vocal nodules; voice; analysis; electroglottographic acoustic ... See more keywords
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Assessment of dysphonia: cepstral analysis versus conventional acoustic analysis

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Published in 2020 at "Logopedics Phoniatrics Vocology"

DOI: 10.1080/14015439.2020.1767202

Abstract: Abstract Objective In this study, we aimed to determine the extent to which smoothed cepstral peak prominence (CPPS) can replace or complement the conventional acoustic measures of jitter, shimmer, and harmonic-to-noise ratio in the assessment… read more here.

Keywords: analysis; assessment dysphonia; acoustic analysis; conventional acoustic ... See more keywords
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IoT Based Railway Track Faults Detection and Localization Using Acoustic Analysis

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3210326

Abstract: Rail is one of the most energy efficient and economical modes of transportation. Regular railway track health inspection is an essential part of a robust and secure train operation. Delayed investigations and problem discoveries pose… read more here.

Keywords: railway; track; railway track; iot based ... See more keywords
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A comparative acoustic analysis of Korean vowels by native and non-native speakers

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Published in 2017 at "Journal of the Acoustical Society of America"

DOI: 10.1121/1.5014952

Abstract: The primary purpose of this study is to examine L1 transfer in L2 vowel acquisition (Flege 1995,1996) by comparing L1 vowels with L2 Korean vowels produced by Korean native speakers and both Mandarin and English… read more here.

Keywords: native speakers; acoustic analysis; korean vowels; comparative acoustic ... See more keywords
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Vibro-Acoustic Analysis and Topology Optimization of Anti-Tetra Chiral Auxetic Lattices Driven by Different Colored Noises

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Published in 2020 at "International Journal of Structural Stability and Dynamics"

DOI: 10.1142/s0219455420501138

Abstract: In this paper, we study vibro-acoustic behavior of auxetic sandwich panels subjected to different excitations and boundary conditions. The core of this panel has the auxetic feature (with negative ... read more here.

Keywords: optimization anti; vibro acoustic; acoustic analysis; topology ... See more keywords
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A modal impedance-based statistical energy analysis for vibro-acoustic analysis of complex systems having structural uncertainty

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Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"

DOI: 10.1177/0954406218780894

Abstract: A modal impedance-based statistical energy analysis for point, line, and area connected complex structural-acoustic systems is introduced. The proposed methodology is applied to perform mid- and high-frequency vibro-acoustic analysis of a cabinet model. The cabinet… read more here.

Keywords: methodology; vibro acoustic; analysis; statistical energy ... See more keywords
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Historically Based Room Acoustic Analysis and Auralization of a Church in the 1470s

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Published in 2021 at "Applied Sciences"

DOI: 10.3390/app11041586

Abstract: Worship space acoustics have been established as an important part of a nation’s cultural heritage and area of acoustic research, but more research is needed regarding the region of northern Europe. This paper describes the… read more here.

Keywords: analysis; room acoustic; church; acoustics ... See more keywords