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  • Komparatistik. Außereuropäische Sprachen/Literaturen  (9)
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  • Komparatistik. Außereuropäische Sprachen/Literaturen  (9)
  • Medizin  (1)
RVK
  • 1
    In: Brain and Language, Elsevier BV, Vol. 194 ( 2019-07), p. 23-34
    Materialart: Online-Ressource
    ISSN: 0093-934X
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2019
    ZDB Id: 1462477-1
    SSG: 5,2
    SSG: 7,11
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    Acoustical Society of America (ASA) ; 2015
    In:  The Journal of the Acoustical Society of America Vol. 138, No. 5 ( 2015-11-01), p. 2929-2936
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 138, No. 5 ( 2015-11-01), p. 2929-2936
    Kurzfassung: Near-field acoustic holography requires one or more reference signals corresponding to sound sources to help get the phase of complex pressure on the hologram plane, while broadband acoustic holography from intensity measurements (BAHIM) breaks through this restriction by getting the phase from the quadratic pressure and tangential components of sound intensity. However, in the conventional BAHIM all the sound sources are confined to one side of the hologram plane. In the present paper, by utilizing a three-dimensional pressure-velocity (3D p-u) probe that is composed of one pressure microphone and three orthogonally placed particle velocity sensors, the BAHIM is extended to be applicable to the situation that the disturbing sources exist on the opposite side of the hologram plane. The validity of the extended BAHIM is examined both numerically and experimentally. The results demonstrate that, by using the extended BAHIM, the complex pressure as well as the normal particle velocity on the hologram plane can be measured with a 3D p-u probe without using any reference signal, the pressure radiated by the target source can be extracted from the mixed sound field, and the sound field of interest can be reconstructed effectively.
    Materialart: Online-Ressource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 2015
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    Acoustical Society of America (ASA) ; 2017
    In:  The Journal of the Acoustical Society of America Vol. 142, No. 4_Supplement ( 2017-10-01), p. 2640-2640
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 142, No. 4_Supplement ( 2017-10-01), p. 2640-2640
    Kurzfassung: This study investigated the acoustic features of vowel production in Mandarin-speaking patients with post-stroke spastic dysarthria. The subjects included 31 native Mandarin-speaking patients with post-stroke spastic dysarthria (age: 33–73 years old) and 40 normal adults in a similar age range (age: 22–68 years old). Each subject were recorded producing a list of 28 Mandarin monosyllables that composed of six monophthong vowels (i.e., /a, o, ɣ, i, u, y/) embedded in the /CV/ context. The patients’ speech samples were evaluated by two native Mandarin speakers. The evaluation scores were then used to classify each patient into one of the two categories: mild or moderate-to-severe severity. Midpoint F1 and F2 of each vowel token were extracted and normalized. Results showed no significant differences between the patients and normal speakers on vowel duration. However, the vowel categories in the patients were more scattered and greatly overlapped than in the normal speakers. The magnitude of the vowel dispersion and overlap increased as a function of the severity of the disorder. The deviations of the vowel acoustic features in the patients from the normal speakers may provide guidance for clinical rehabilitation to improve the speech intelligibility of this type of patients.
    Materialart: Online-Ressource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 2017
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Acoustical Society of America (ASA) ; 2003
    In:  The Journal of the Acoustical Society of America Vol. 113, No. 4 ( 2003), p. 1795-
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 113, No. 4 ( 2003), p. 1795-
    Materialart: Online-Ressource
    ISSN: 0001-4966
    RVK:
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 2003
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Cambridge University Press (CUP) ; 2020
    In:  Journal of the International Phonetic Association Vol. 50, No. 2 ( 2020-08), p. 240-257
    In: Journal of the International Phonetic Association, Cambridge University Press (CUP), Vol. 50, No. 2 ( 2020-08), p. 240-257
    Kurzfassung: The Hmu language is spoken by approximately 1,250,000 people who reside in Qiandongnan Miao and Dong Autonomous Prefecture (黔东南苗族侗族自治州), Guizhou Province (贵州省), the People's Republic of China (Wang & Mao 1995: 3–4; Lewis, Simons & Fenning 2016).
    Materialart: Online-Ressource
    ISSN: 0025-1003 , 1475-3502
    RVK:
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2020
    ZDB Id: 2072602-8
    SSG: 7,11
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    Acoustical Society of America (ASA) ; 2011
    In:  The Journal of the Acoustical Society of America Vol. 130, No. 2 ( 2011-08-01), p. 807-817
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 130, No. 2 ( 2011-08-01), p. 807-817
    Kurzfassung: A Fourier series method is proposed for the acoustic analysis of a rectangular cavity with impedance boundary conditions arbitrarily specified on any of the walls. The sound pressure is expressed as the combination of a three-dimensional Fourier cosine series and six supplementary two-dimensional expansions introduced to ensure (accelerate) the uniform and absolute convergence (rate) of the series representation in the cavity including the boundary surfaces. The expansion coefficients are determined using the Rayleigh–Ritz method. Since the pressure field is constructed adequately smooth throughout the entire solution domain, the Rayleigh–Ritz solution is mathematically equivalent to what is obtained from a strong formulation based on directly solving the governing equations and the boundary conditions. To unify the treatments of arbitrary nonuniform impedance boundary conditions, the impedance distribution function on each specified surface is invariantly expressed as a double Fourier series expansion so that all the relevant integrals can be calculated analytically. The modal parameters for the acoustic cavity can be simultaneously obtained from solving a standard matrix eigenvalue problem instead of iteratively solving a nonlinear transcendental equation as in the existing methods. Several numerical examples are presented to demonstrate the effectiveness and reliability of the current method for various impedance boundary conditions, including nonuniform impedance distributions.
    Materialart: Online-Ressource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 2011
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Online-Ressource
    Online-Ressource
    Acoustical Society of America (ASA) ; 2013
    In:  The Journal of the Acoustical Society of America Vol. 134, No. 2 ( 2013), p. 1439-
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 134, No. 2 ( 2013), p. 1439-
    Materialart: Online-Ressource
    ISSN: 0001-4966
    RVK:
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 2013
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Online-Ressource
    Online-Ressource
    Elsevier BV ; 2019
    In:  System Vol. 87 ( 2019-12), p. 102160-
    In: System, Elsevier BV, Vol. 87 ( 2019-12), p. 102160-
    Materialart: Online-Ressource
    ISSN: 0346-251X
    RVK:
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2019
    ZDB Id: 1500775-3
    ZDB Id: 189289-7
    SSG: 7,11
    SSG: 5,3
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Online-Ressource
    Online-Ressource
    Acoustical Society of America (ASA) ; 2012
    In:  The Journal of the Acoustical Society of America Vol. 131, No. 4 ( 2012-04-01), p. 2799-2810
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 131, No. 4 ( 2012-04-01), p. 2799-2810
    Kurzfassung: A coupled system consisting of an acoustic cavity and an elastic panel is a classical problem in structural acoustics and is typically analyzed using modal approaches based on in vacuo structural modes and the rigidly walled acoustic modes which are pre-determined based on separate component models. Such modeling techniques, however, tend to suffer the following drawbacks or limitations: (a) a panel is only subjected to ideal boundary conditions such as the simply supported, (b) the coupling between the cavity and panel is considered weak, and (c) the particle velocity cannot be correctly predicted from the pressure gradient on the contacting interface, to name a few. Motivated by removing these restrictions, this paper presents a general method for the vibro-acoustic analysis of a three-dimensional (3D) acoustic cavity bounded by a flexible panel with general elastically restrained boundary conditions. The displacement of the plate and the sound pressure in the cavity are constructed in the forms of standard two-dimensional and 3D Fourier cosine series supplemented by several terms introduced to ensure and accelerate the convergence of the series expansions. The unknown expansions coefficients are treated as the generalized coordinates and determined using the Rayleigh–Ritz procedure based on the energy expressions for the coupled structural acoustic system. The accuracy and effectiveness of the proposed method are demonstrated through numerical examples and comparisons with the results available in the literature.
    Materialart: Online-Ressource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 2012
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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