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  • Comparative Studies. Non-European Languages/Literatures  (7)
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  • Comparative Studies. Non-European Languages/Literatures  (7)
  • Medicine  (2)
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  • 1
    Online Resource
    Online Resource
    Elsevier BV ; 2022
    In:  Brain and Language Vol. 235 ( 2022-12), p. 105202-
    In: Brain and Language, Elsevier BV, Vol. 235 ( 2022-12), p. 105202-
    Type of Medium: Online Resource
    ISSN: 0093-934X
    RVK:
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 1462477-1
    SSG: 5,2
    SSG: 7,11
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2021
    In:  The Journal of the Acoustical Society of America Vol. 150, No. 1 ( 2021-07-01), p. 540-550
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 150, No. 1 ( 2021-07-01), p. 540-550
    Abstract: This study involved playing and listening (using recorded sounds) experiments to investigate how changes in soundpost length (for a fixed soundpost position) affect the perceptual qualities of the violin and what the threshold of change is below which players and luthiers do not perceive differences. A length-adjustable carbon fiber soundpost was employed. During the playing experiment, subjects played a provided violin on which the soundpost length was modified by the experimenter to find their optimal soundpost lengths. Then the experimenter varied the soundpost length randomly in ten trials within ±0.11 mm around their optimal lengths and asked subjects to always compare with the previous setting. The results showed that subjects' optimal soundpost lengths varied from 0.132 to 0.616 mm relative to the original length (53 mm), but subjects could not recognize length variation of 0.11 mm or less at above chance levels. During the listening experiment, subjects listened to 16 pairs of recordings through a computer interface and were asked, for each pair, whether the violin setup was the same or different. The results showed that subjects could differentiate soundpost lengths with a difference of about 0.198 mm at better than chance level.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2021
    detail.hit.zdb_id: 1461063-2
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  • 3
    In: Brain and Language, Elsevier BV, Vol. 173 ( 2017-10), p. 67-75
    Type of Medium: Online Resource
    ISSN: 0093-934X
    RVK:
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2017
    detail.hit.zdb_id: 1462477-1
    SSG: 5,2
    SSG: 7,11
    Location Call Number Limitation Availability
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  • 4
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2012
    In:  The Journal of the Acoustical Society of America Vol. 131, No. 4_Supplement ( 2012-04-01), p. 3288-3288
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 131, No. 4_Supplement ( 2012-04-01), p. 3288-3288
    Abstract: Cardiovascular disease is the main causes of morbidity and mortality due to lumen stenosis and atherosclerosis. Intravascular ultrasound (IVUS) is able to delineate internal structures of vessel wall with fine spatial resolution. However, IVUS is insufficient to identify the fibrous cap thickness and tissue composition of atherosclerotic lesions, the key factors to stage atherosclerosis and determine appropriate treatment strategies. Currently, novel techniques have been developed to determine tissue composition, which require an open IVUS system to accommodate these techniques for comprehensive plaque characterization. This paper presents the development of such an IVUS system with reconfigurable hardware implementation, programmable image processing algorithms, and flexible imaging control to support an easy fusion with other techniques to improve the diagnostic capabilities for cardiovascular diseases. In addition, this IVUS utilized a miniaturized ultrasound transducer constructed by PMN-PT single crystal for better piezoelectric constant and electromechanical coupling coefficient than traditional PZT ceramics. Testing results showed that the IVUS system could offer a minimum detectable signal of 25μV, allowing a 51dB dynamic range at 47dB gain, with a frequency range from 20MHz to 80MHz. Finally, phantom imaging and in vitro vessel imaging were conducted to demonstrate the performance of the open system for IVUS applications.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2012
    detail.hit.zdb_id: 1461063-2
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  • 5
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2018
    In:  The Journal of the Acoustical Society of America Vol. 144, No. 3_Supplement ( 2018-09-01), p. 1890-1890
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 144, No. 3_Supplement ( 2018-09-01), p. 1890-1890
    Abstract: The brand and model of strings used on violins are considered to play a significant role in their playability and sound quality. An experiment was designed to test the perceptual quality of different violin strings. A professional violinist selected two violins, from a set of the same make/model, that had similar sound and playing qualities. Three different types of strings were chosen for this study: Dominant, Kaplan, and Pro-Arté strings. Professional and advanced student violinists were invited to play and evaluate the violins. The experiment involved three phases: in the first phase, the two violins were strung with the same types of strings; in the last two phases, the strings of one of the violins was changed to the other two different types of strings (in a random manner). Violinists were asked to freely describe the differences of the two violins in each phase and rate them on eight specified criteria. Preliminary results indicate that the violin with Dominant strings was perceived as being more responsive and having a brighter sound, while that with the Pro-Arté strings was considered to have a richer sound and better overall quality.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2018
    detail.hit.zdb_id: 1461063-2
    Location Call Number Limitation Availability
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  • 6
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2018
    In:  The Journal of the Acoustical Society of America Vol. 144, No. 3_Supplement ( 2018-09-01), p. 1890-1890
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 144, No. 3_Supplement ( 2018-09-01), p. 1890-1890
    Abstract: The soundpost of a violin is an essential component of the instrument, providing structural support and a mechanical coupling between top and back plates. Subtle changes made by a luthier to the soundpost dimensions or position can result in significant variations in sound and playing qualities. A study was designed to investigate the perception of sound quality associated with changes to the soundpost length, making use of an adjustable carbon fiber soundpost. Violin excerpts were recorded with different soundpost lengths. Violinists and luthiers were invited to listen to the recordings and provide perceptual feedback using a computer interface. Tasks included pairwise comparisons and free sorting. Perceptual thresholds in detecting soundpost length changes were characterized, as well as possible groupings according to soundpost lengths that might be considered too short, too long and optimal. Bridge admittances were also measured and analyzed for different soundpost lengths.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2018
    detail.hit.zdb_id: 1461063-2
    Location Call Number Limitation Availability
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  • 7
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1995
    In:  The Journal of the Acoustical Society of America Vol. 98, No. 5_Supplement ( 1995-11-01), p. 2864-2864
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 98, No. 5_Supplement ( 1995-11-01), p. 2864-2864
    Abstract: Amplitude fluctuation effects in acoustic scattering due to shallow water internal waves are examined using both adiabatic and coupled normal mode theory. The discussion is restricted to linear (nonsoliton) internal waves with a Garrett–Munk spectrum in this work. Coherent and incoherent effects, adiabatic versus coupled scattering, and the range, frequency, and internal wave amplitude sensitivity of the scattering will be discussed. Directions for future work will be discussed.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1995
    detail.hit.zdb_id: 1461063-2
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