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  • 1
    In: Journal of Near Eastern Studies, University of Chicago Press, Vol. 62, No. 4 ( 2003-10), p. 311-312
    Type of Medium: Online Resource
    ISSN: 0022-2968 , 1545-6978
    RVK:
    Language: English
    Publisher: University of Chicago Press
    Publication Date: 2003
    detail.hit.zdb_id: 2050039-7
    SSG: 6,21
    SSG: 6,22
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  • 2
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1980
    In:  The Journal of the Acoustical Society of America Vol. 68, No. 1 ( 1980-07-01), p. 368-368
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 68, No. 1 ( 1980-07-01), p. 368-368
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1980
    detail.hit.zdb_id: 1461063-2
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  • 3
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1984
    In:  The Journal of the Acoustical Society of America Vol. 75, No. S1 ( 1984-05-01), p. S42-S42
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 75, No. S1 ( 1984-05-01), p. S42-S42
    Abstract: Report covers strip tests showing physical parameters of native woods from China and Australia used in construction of string instruments of the violin family or considered of potential use in such instruments. Results are compared with those obtained on European and American woods conventionally used in violin making.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1984
    detail.hit.zdb_id: 1461063-2
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  • 4
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2011
    In:  The Journal of the Acoustical Society of America Vol. 130, No. 4_Supplement ( 2011-10-01), p. 2507-2507
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 130, No. 4_Supplement ( 2011-10-01), p. 2507-2507
    Abstract: A structural feature that can be found in many string instruments is a hollow body with one or several sound holes. The sound radiated from these holes interacts with the sound radiation from the rest of the body and perceivably influences the timbre and the loudness of the instrument. In this work three non-European lutes with sound holes are measured: the Mauretanian ginbri, the West-African gunubri, and the Chinese ruan. All of these instruments have distinct cavity air modes and a measureable Helmholtz frequency. Each instrument is measured with a 11 × 11 microphone array and analyzed with a focus on the radiated spectrum and sound intensity of the hole(s). In a further step, the findings of the measurements are compared to a Finite Element model and incorporated into a real-time finite differences physical model of the ruan.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2011
    detail.hit.zdb_id: 1461063-2
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  • 5
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2022
    In:  The Journal of the Acoustical Society of America Vol. 152, No. 4_Supplement ( 2022-10-01), p. A124-A124
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 152, No. 4_Supplement ( 2022-10-01), p. A124-A124
    Abstract: The University of Mississippi is a PhD granting institution with an R1 Carnegie designation placing it among schools with the highest level of research activity. The Department of Physics and Astronomy at the university has a diverse range of research opportunities which includes Physical Acoustics. Our acoustics program is affiliated with the National Center for Physical Acoustics (NCPA). NCPA is an 85,000 square foot standalone facility on the campus of the University of Mississippi solely dedicated to the physics and engineering applications of acoustics. It has research groups dedicated to ultrasound, infrasound, aeroacoustics, atmospheric propagation, porous media, and ocean acoustics. Graduate students in both physics and engineering are pursuing PhD and MS degrees at NCPA, and four faculty members from the physics department have their research laboratories in the facility. In addition to acoustics, our department provides a broad range of research opportunities in other subfields. We have two groups associated with recent Nobel Prizes in Gravitation and High Energy Physics and offer additional programs in Computational Physics and Atmospheric Physics. Our faculty are involved with national and international collaborations including the Laser Interferometer Gravitational Wave Observatory (LIGO), The European Center for Particle Physics (CERN) and Fermilab.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2022
    detail.hit.zdb_id: 1461063-2
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  • 6
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2021
    In:  The Journal of the Acoustical Society of America Vol. 150, No. 4_Supplement ( 2021-10-01), p. A139-A139
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 150, No. 4_Supplement ( 2021-10-01), p. A139-A139
    Abstract: First established in 1988, the Physical Acoustics Summer School (PASS) was patterned off of a long tradition in European scientific communities of carving out a week or more for established scientists and graduate students to come together in a remote location in order to focus on the state of the science and build community between existing and emerging generations of thought leaders. PASS has convened every two years from that time until a global pandemic disrupted that in 2020. During those early years, Logan Hargrove was an enthusiastic and energetic supporter of physical acoustics research, but had a vision to build a program to support the field beyond funding individual research projects through ONR—he wanted to support a vibrant and long-term physical acoustics community. Logan’s vision is now a well-established reality and still guides the planning and organization of PASS today. In this talk, I will present some of the history of PASS and its evolution over the years with a focus on Logan’s critical role all along the way.
    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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  • 7
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2019
    In:  The Journal of the Acoustical Society of America Vol. 145, No. 3_Supplement ( 2019-03-01), p. 1706-1706
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 145, No. 3_Supplement ( 2019-03-01), p. 1706-1706
    Abstract: The University of Mississippi is a Ph.D. granting institution with an R1 Carnegie designation placing it among schools with the highest level of research activity. The Department of Physics and Astronomy at Ole Miss has a diverse range of research opportunities, including two groups associated with recent Nobel Prizes. Along with programs in Computational Physics, High Energy Physics, Atmospheric Physics and Gravitation, the department is affiliated with the National Center for Physical Acoustics (NCPA). NCPA is an 85 000 square foot standalone facility on the campus of the University of Mississippi dedicated to the physics and engineering applications of acoustics. It has research groups dedicated to ultrasound, infrasound, aeroacoustics, atmospheric propagation, porous media, and ocean acoustics. Graduate students in physics and engineering are pursuing Ph.D. and M.S. degrees at NCPA, and four faculty members from the Physics department have their research laboratories in the facility. In addition to NCPA, the Physics department has affiliations with the Laser Interferometer Gravitational Wave Observatory (LIGO), The European Center for Particle Physics (CERN), Fermilab and Belle II.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2019
    detail.hit.zdb_id: 1461063-2
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  • 8
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2004
    In:  The Journal of the Acoustical Society of America Vol. 116, No. 4_Supplement ( 2004-10-01), p. 2542-2542
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 116, No. 4_Supplement ( 2004-10-01), p. 2542-2542
    Abstract: A cavitation bubble structure stable at high acoustic intensity (from 1.8 to more than 8.2 W/cm2) has been experimentally observed [A. Moussatov et al., Ultrason. Sonochem. 10, (2003)]. At the vincinity of an axisymmetrical radiating surface, big streamers of bubbles get ejected from the surface and build up a bubble structure of conical shape denoted CBS. In this paper, results on the observation and analysis of the CBS are reported for 20-kHz horn-type transducers with different sonotrode diameters. It is found that: (i) the CBS is always a zone of high chemical activity, even when the bubble structure is not observed due to high speed streaming; (ii) the geometry of the CBS is determined by nonlinear acoustic wave propagation. These results are supported by various experimental data: chemiluminescence measurements, high speed movies (2250 frames/s) under CW scattered light or LED flashes synchronized with driving signal and measurement of the acoustic pressure and of the time-averaged acoustic pressure. [Work supported by CNRS-CSIC cooperation project and European Union (FEDER 2).]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2004
    detail.hit.zdb_id: 1461063-2
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  • 9
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1999
    In:  The Journal of the Acoustical Society of America Vol. 105, No. 2_Supplement ( 1999-02-01), p. 1376-1377
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 105, No. 2_Supplement ( 1999-02-01), p. 1376-1377
    Abstract: In the framework of the new European noise policy, the European Commission has created working groups to assist in the preparation of this policy. The members are appointed by the Commission on the recommendation of the member states, local authorities, and various organizations. Working group 3 (WG 3) is dealing with the harmonization of calculation and measurement procedures for noise assessment, mapping, planning, and noise abatement. Calculation methods shall be elaborated for road, rail, aircraft, outdoor machinery, and industry. They shall be suited for calculating the long-term noise exposure as well as single events, especially from air and rail traffic. Additionally, they shall be developed for a variety of geometrical and weather conditions which occur in the member states. At the Copenhagen Conference (September 1998), WG 3 started working and discussed the work program with experts from various countries. It was decided that emission data and transmission models should be separated. Emission measurement procedures should be provided, and the propagation models currently in use should be improved, especially in their physical representation. In the next months an action plan will be elaborated. In this paper the current state of the discussions will be presented.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1999
    detail.hit.zdb_id: 1461063-2
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  • 10
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1989
    In:  The Journal of the Acoustical Society of America Vol. 85, No. S1 ( 1989-05-01), p. S119-S119
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 85, No. S1 ( 1989-05-01), p. S119-S119
    Abstract: A simple method has been developed to distinguish between European and Africanized honeybees on the basis of differences in the spectral content of sounds made by worker bees in flight. The spectral content of the flight sounds for each subspecies may generally be correlated to characteristic taxonomial features (i.e., wing size, body weight, thorax dimensions, etc.) and physical behavior (i.e., foraging, stinging, etc.). Acoustic signals from over 800 individual flying European and Africanized honeybees were collected. A time-averaged signal was generated for each specimen, and standard Fourier analysis methods were used to generate power spectral density plots. Examination of the PSD's revealed that distinguishing differences exist between the acoustical signatures of flying European honeybees and flying Africanized honeybees. Specifically, the flying European honeybee signature has a fundamental power peak in the 210- to 230-Hz frequency range whereas the flying Africanized honeybee signature has a fundamental power peak in the 260- to 280-Hz frequency range. This substantial difference is easily embodied in a variety of simple identification algorithms. A patent application was submitted for the acoustical peak identification system (APIS), and a simple, inexpensive, field-portable instrument based on acoustical signature techniques has been developed for screening identification of the Africanized subspecies of honeybees. This instrument is called “Buzz Buster” and is being marketed by B-Tec.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1989
    detail.hit.zdb_id: 1461063-2
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