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  • Comparative Studies. Non-European Languages/Literatures  (6)
  • 1
    Online Resource
    Online Resource
    Non-invasive manipulation scheme of spherical particle in viscous fluids in a tube based on acoustic radiation force
    Acoustical Society of America (ASA) ; 2023
    In:  The Journal of the Acoustical Society of America Vol. 153, No. 2 ( 2023-02-01), p. 812-820
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 153, No. 2 ( 2023-02-01), p. 812-820
    Abstract: A theoretical solution of the acoustic radiation force (ARF) on spherical particles by an arbitrary beam in viscous fluids in a tube is proposed. Based on the parametric design with the purpose of promoting calculi in the urinary system, theoretical solutions and finite element simulations are carried out, which mutually confirm the accuracy and feasibility of the scheme. The variation law of the ARF with adjustable parameters, such as incident angle, frequency spectrum, particle radius, tube radius, and viscosity, is studied, and the mechanism of the variation law is explained. This solution lays a foundation for the application of non-contact and non-invasive in-tube manipulation based on ARF in medicine and life sciences.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0017113
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2023
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 2
    Online Resource
    Online Resource
    Multilingualism, language choice, and identity construction: Diasporic Ukrainians in Shanghai
    Wiley ; 2024
    In:  Journal of Sociolinguistics Vol. 28, No. 2 ( 2024-04), p. 42-60
    Details
    In: Journal of Sociolinguistics, Wiley, Vol. 28, No. 2 ( 2024-04), p. 42-60
    Abstract: This article reports on a study of multilingualism, language choice, and identity construction for six Ukrainians in Shanghai, China. Thematic analysis of data collected from netnographic observation, semi‐structured interviews, and narrative frame writing revealed that diasporic Ukrainians’ language choice is both instrumentally strategic and sociopolitically charged; in the public domain, they construct light “citizen of the world” and “nice foreigner” identities; in the private domain, they construct “Ukrainian who speaks Ukrainian language” identity. To understand the seemingly binary or even conflicted situation, we turn to the concept of “social anchoring” and propose a conceptualization of “diasporic people's language choice and identity selection.” This study shows that the construction of diasporic identity is, first of all, an individualistic process, articulating the affective aspect in their seeking psychological stability; it is also a social practice indicating diasporic people's strategies in seeking social stability.
    Type of Medium: Online Resource
    ISSN: 1360-6441 , 1467-9841
    URL: Issue
    URL: Article
    DOI: 10.1111/josl.v28.2
    DOI: 10.1111/josl.12652
    RVK:
    EQ 2689.4
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 2028940-6
    detail.hit.zdb_id: 1352851-8
    SSG: 7,11
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Music Rhythmic Cueing for the Production of Non-native Speech Rhythm: Evidence from Chinese Learners of French
    Springer Science and Business Media LLC ; 2024
    In:  Journal of Psycholinguistic Research Vol. 53, No. 1 ( 2024-02)
    Details
    In: Journal of Psycholinguistic Research, Springer Science and Business Media LLC, Vol. 53, No. 1 ( 2024-02)
    Type of Medium: Online Resource
    ISSN: 0090-6905 , 1573-6555
    URL: Article
    DOI: 10.1007/s10936-024-10044-1
    RVK:
    EQ 1000
    RVK:
    EQ 2695
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2024
    detail.hit.zdb_id: 2017227-8
    detail.hit.zdb_id: 124517-X
    SSG: 5,2
    SSG: 7,11
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  • 4
    Online Resource
    Online Resource
    Stabilizing near-field acoustic levitation: Investigation of non-linear restoring force generated by asymmetric gas squeeze film
    Acoustical Society of America (ASA) ; 2020
    In:  The Journal of the Acoustical Society of America Vol. 148, No. 3 ( 2020-09-01), p. 1468-1477
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 148, No. 3 ( 2020-09-01), p. 1468-1477
    Abstract: The instability of a floating object is the main factor preventing near-field acoustic levitation (NAFL) from being widely used in the manufacture of micro-electro-mechanical systems. Therefore, investigating the restoring force due to the generation mechanisms of NAFL is necessary to ensure the stable levitation of the floating object. This study presents a theoretical analysis to evaluate the restoring force based on the gas-film-lubrication theory. The gas-film pressure between the reflector and the radiator is expressed in the form of the dimensionless Reynolds equation in a cylindrical coordinate system, which is solved by an eight-point discrete grid method due to the discontinuous gas-film distribution. An experimental rig is constructed to measure the restoring force at various eccentricities, which can be used to support the developed numerical model. The theoretical results show that the restoring force increases with an increment in eccentricity, which agrees with experimental results. Furthermore, theoretical prediction results indicate that the restoring force increases when the amplitude of the radiator and weight of the levitator increases, which indicates higher system stability. The results of the radiator vibration mode on the restoring force show that the restoring force is the largest in the first-order mode.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0001963
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2020
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 5
    Online Resource
    Online Resource
    Theoretical analysis of a contactless transportation system for cylindrical objects based on ultrasonic levitation
    Acoustical Society of America (ASA) ; 2021
    In:  The Journal of the Acoustical Society of America Vol. 150, No. 3 ( 2021-09-01), p. 1682-1690
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 150, No. 3 ( 2021-09-01), p. 1682-1690
    Abstract: Contactless transportation systems based on near-field acoustic levitation have the benefit of compact design and easy control which are able to meet the cleanliness and precision demands required in precision manufacturing. However, the problems involved in contactless positioning and transporting cylindrical objects have not yet been addressed. This paper introduces a contactless transportation system for cylindrical objects based on grooved radiators. A groove on the concave surface of the radiator produces an asymmetrical pressure distribution which results in a thrusting force to drive the levitator horizontal movement. The pressure distribution between the levitator and the radiator is acquired by solving the Reynolds equation. The levitation and the thrusting forces are obtained by integrating the pressure and the pressure gradient over the concave surface, respectively. The predicted results of the levitation force agree well with experimental observations from the literature. Parameter studies show that the thrusting force increases and converges to a stable value as the groove depth increases. An optimal value for the groove arc length is found to maximize the thrusting force, and the thrusting force increases as the groove width, the radiator vibration amplitude, and the levitator weight increase.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0006208
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2021
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 6
    Online Resource
    Online Resource
    Numerical analysis of the transportation characteristics of a self-running sliding stage based on near-field acoustic levitation
    Acoustical Society of America (ASA) ; 2015
    In:  The Journal of the Acoustical Society of America Vol. 138, No. 6 ( 2015-12-01), p. 3723-3732
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 138, No. 6 ( 2015-12-01), p. 3723-3732
    Abstract: Owing to its distinct non-contact and oil-free characteristics, a self-running sliding stage based on near-field acoustic levitation can be used in an environment, which demands clean rooms and zero noise. This paper presents a numerical analysis on the lifting and transportation capacity of a non-contact transportation system. Two simplified structure models, namely, free vibration and force vibration models, are proposed for the study of the displacement amplitude distribution of two cases using the finite element method. After coupling the stage displacement into the film thickness, the Reynolds equation is solved by the finite difference method to obtain the lifting and thrusting forces. Parametric analyses of the effects of amplitude, frequency, and standing wave ratio (SWR) on the sliding stage dynamic performance are investigated. Numerical results show good agreement with published experimental values. The predictions also reveal that greater transportation capacity of the self-running sliding stage is generally achieved at less SWR and at higher amplitude.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.4938220
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2015
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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