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International Journal of Fluid Mechanics Research

Publicou 6 edições por ano

ISSN Imprimir: 2152-5102

ISSN On-line: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

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Performance Analysis of Acoustic Receiving Devices Functioning in a Car Cabin Based on Computer Modeling of a Sound Field

Volume 31, Edição 3, 2004, 7 pages
DOI: 10.1615/InterJFluidMechRes.v31.i3.50
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RESUMO

A model for speech and noise sound fields in a car cabin is proposed. The model takes into account a complicated geometry of the cabin, frequency dependence of sound absorption on its surfaces and spatial correlation of distributed noises. The sound field computation is based on the wave approach for the range of low frequencies (below 1000 Hz) and on the ray approximation for higher frequencies. The software is developed, which provides simulation of speech and noise fields in the cabin during the car motion. This software may be utilized as an simulator of the sound field for the development of speech coding and recognition devices intended for car cabins. To check the model adequacy the spectra of simulated noise of the engine and results of natural measurements are compared. The effectiveness of microphone arrays as speech enhancement tools is investigated on the base of the developed model for different signal processing algorithms and noise conditions.

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