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Статті в журналах з теми "Acoustical engineering"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 25 липня 2025

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1

Haberman, Michael R. "Introduction to the Technical Committee on Engineering Acoustics." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A29. http://dx.doi.org/10.1121/10.0026675.

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Анотація:

This talk will introduce ongoing work in the Technical Committee on Engineering Acoustics (TCEA) of the Acoustical Society of America. Engineering Acoustics encompasses the theory and practice of creating tools to generate and investigate acoustical phenomena and then to apply the knowledge of acoustics to practical utility. This includes the design and modeling of acoustical and vibrational transducers, transducer arrays, and transduction materials or systems in all media and frequency ranges. It is also concerned with the design of acoustical instrumentation, metrology, and the calibration o

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2

Burkhard, Mahlon D. "Acoustical standards in engineering acoustics." Journal of the Acoustical Society of America 115, no. 5 (2004): 2434. http://dx.doi.org/10.1121/1.4781590.

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3

Molevich, Nonna E., Anatoly I. Klimov, and Vladimir G. Makaryan. "Influence of Thermodynamic Nonequilibrium on the Acoustic Properties of Gases." International Journal of Aeroacoustics 4, no. 3 (2005): 373–83. http://dx.doi.org/10.1260/1475472054771411.

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This paper is a brief review of results of experimental and theoretical studies in the field of acoustics of nonequilibrium gas-plasma media. New acoustical properties of nonequilibrium media caused by the change in sign of the second viscosity and the dispersion coefficients are considered. Such media are acoustically active. Conditions are discussed for generating new nonlinear acoustical structures.

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4

Fonseca, William D'Andrea, Eric Brandão, Paulo H. Mareze, et al. "Acoustical engineering: A complete academic undergraduate program in Brazil." Journal of the Acoustical Society of America 152, no. 2 (2022): 1180–91. http://dx.doi.org/10.1121/10.0013570.

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Acoustics is a broad field of knowledge that extends branches all over the physics of wave phenomena, psychology, natural sciences, and engineering. It is taught, in general, as part of engineering, physics, or architecture programs, or even in graduate programs specialized in the theme. In Brazil, acoustics was taught in graduate programs, until the creation of Acoustical Engineering in 2009, at the Federal University of Santa Maria, an integral undergraduate program dedicated to acoustics, audio, and vibration (lasting ten semesters). This article presents its complete academic program, its

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5

Van Uffelen, Lora, James H. Miller, and Gopu R. Potty. "Underwater acoustics and ocean engineering at the University of Rhode Island." Journal of the Acoustical Society of America 152, no. 4 (2022): A124. http://dx.doi.org/10.1121/10.0015761.

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Underwater acoustics is one of the primary areas of emphasis in the Ocean Engineering Department at the University of Rhode Island, the first Ocean Engineering program in the United States. The program offers Bachelors, Masters (thesis and non-thesis options) and PhD degrees in Ocean Engineering. These programs are based at the Narragansett Bay campus, providing access to a living laboratory for student learning. Some key facilities of the program are an acoustics tank and a 100-foot-long wave tank. At the graduate level, students are actively involved in research focused in areas such as acou

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6

Brown, David A., Paul J. Gendron, and John R. Buck. "Graduate education in acoustic engineering, transduction, and signal processing University of Massachusetts Dartmouth." Journal of the Acoustical Society of America 152, no. 4 (2022): A123. http://dx.doi.org/10.1121/10.0015756.

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The University of Massachusetts Dartmouth has an established graduate program of study with a concentration in Applied Acoustics leading to the M.S. and Ph.D. degree in Electrical Engineering. The program offers courses and research opportunities in the area of electroacoustic transduction, underwater acoustics, and signal processing. Courses include the Fundamentals of Acoustics, Random Signals, Underwater Acoustics, Introduction to Transducers, Electroacoustic Transduction, Medical Ultrasonics, Digital Signal Processing, Detection Theory, and Estimation Theory. The ECE department established

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7

Nowicka, Elzbieta. "Improving Engineering Design Using Smart Evaluation of Indoor Acoustical Climate of Dining Places." Applied Sciences 15, no. 5 (2025): 2700. https://doi.org/10.3390/app15052700.

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The indoor acoustic climate of dining places often presents challenges for designers and their projects. In this type of enclosure, one of the fundamental factors determining the acoustic climate of a space is the acceptable speech reception in relation to sound alarm systems. This study discusses an index-based method for assessing the acoustic climate of dining places, such as restaurants and cafeterias, during the design process. These studies focused on the reverberation time and speech intelligibility as key parameters defining the acoustical climate. The analyses considered dining places

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8

Ballard, Megan, Preston S. Wilson, and Mark F. Hamilton. "Acoustical oceanography curriculum at The University of Texas at Austin." Journal of the Acoustical Society of America 156, no. 4_Supplement (2024): A31. https://doi.org/10.1121/10.0034997.

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Анотація:

The acoustical oceanography (AO) curriculum at The University of Texas at Austin (UT) consists a number of courses and thesis research, which often includes field work. The core course is EE/ME 384N-5, Underwater Acoustics, which covers acoustic properties of the ocean, propagation, reflection, reverberation, scattering and target strength, ocean noise, array and signal processing and basic sonar design. The course is offered in alternate years and is cross-listed as both an electrical and mechanical engineering course. Prior to this, students usually take two semesters of physical acoustics:

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9

Hioka, Yusuke, Michael Kingan, and George Dodd. "Learning effect of active learning coursework in engineering acoustics course." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 2 (2021): 4154–65. http://dx.doi.org/10.3397/in-2021-2617.

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This paper reports the learning effect achieved by a newly developed coursework for an engineering acoustics course offered to fourth year and postgraduate engineering students at the University of Auckland, New Zealand. The course teaches fundamental knowledge that acoustical engineers need and which underpins a variety of sub-disciplines in acoustics including: fundamental physics of wave propagation, building and room acoustics, electro-acoustics, audio signal processing, and the psychology of hearing. The coursework incorporated practical active learning activities and was developed in ord

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10

Boot, Tim, Frederic Roskam, Phil Coleman, Simon Brown, and Julien Laval. "Greater artistic and technological performance through the converged technologies of architectural acoustics, electroacoustic enhancement, and immersive audio technologies." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A168. http://dx.doi.org/10.1121/10.0023155.

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Producing meaningful, creative, and engaging experiences for audiences requires highly integrated acoustics and audio technologies. The fields of architectural acoustics, electro acoustic enhancement and immersive audio technologies have converged, altering the way we approach entertainment venue design. Globally, demand has increased for immersive audio in live and reproduced sound, and electro acoustic enhancement technologies are becoming more widespread. We will discuss how architecturally integrated end devices, multi-function signal processing, and architectural acoustical design should

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11

Wang, Zhen Jiang, and Feng Hua Lu. "The Acoustical Design of Conference Room Based on Speech Acoustic." Applied Mechanics and Materials 507 (January 2014): 127–30. http://dx.doi.org/10.4028/www.scientific.net/amm.507.127.

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Based on the the requirements of appropriate reverberation time for the speech acoustic-dominated conference room, which are stipulated in Code for architectural acoustical design of theater ,cinema and multi-use auditorium(GB/T 50356-2005), this paper is trying to redesign the conference room on the fifth floor of the college of architecture and civil engineering of Taiyuan University of Technology, on account of the problems found after the experimental measurement. And the author introduces Ecotect to simulate the redesigning plan, in the hope of providing reference to acoustical design for

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12

Hiremath, Nandeesh, Vaibhav Kumar, Nicholas Motahari, and Dhwanil Shukla. "An Overview of Acoustic Impedance Measurement Techniques and Future Prospects." Metrology 1, no. 1 (2021): 17–38. http://dx.doi.org/10.3390/metrology1010002.

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In order to progress in the area of aeroacoustics, experimental measurements are necessary. Not only are they required for engineering applications in acoustics and noise engineering, but also they are necessary for developing models of acoustic phenomenon around us. One measurement of particular importance is acoustic impedance. Acoustic Impedance is the measure of opposition of acoustical flow due to the acoustic pressure. It indicates how much sound pressure is generated by the vibration of molecules of a particular acoustic medium at a given frequency and can be a characteristic of the med

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13

ADETU, Alina-Elena, Cătălin ADETU, Daniel BOSNICEANU, and Mihaela-Cristiana BADEA. "INVESTIGATION OF THE ACOUSTIC PERFORMANCE OF PERFORATED STEEL INSULATION PANEL USING EXPERIMENTAL AND NUMERICAL METHODS." SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE 25 (July 31, 2024): 38–46. http://dx.doi.org/10.19062/2247-3173.2024.25.4.

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Engineering acoustics is a multidisciplinary field that involves the use of mathematical and physical principles to model, analyze, design, develop, and test engineering systems, with the goal of ensuring that these systems exhibit desirable acoustical behavior. This study aimed to investigate the acoustic performance of a steel insulation panel using experimental and numerical methods. The experimental investigation involved measuring the sound pressure level at different distances and frequencies. The numerical investigation involved creating finite element models of the acoustic panel and a

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14

Autio, Hanna, Mathias Barbagallo, Carolina Ask, Delphine Bard Hagberg, Eva Lindqvist Sandgren, and Karin Strinnholm Lagergren. "Historically Based Room Acoustic Analysis and Auralization of a Church in the 1470s." Applied Sciences 11, no. 4 (2021): 1586. http://dx.doi.org/10.3390/app11041586.

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Worship space acoustics have been established as an important part of a nation’s cultural heritage and area of acoustic research, but more research is needed regarding the region of northern Europe. This paper describes the historical acoustics of an important abbey church in Sweden in the 1470s. A digital historical reconstruction is developed. Liturgical material specific to this location is recorded and auralized within the digital reconstruction, and a room acoustic analysis is performed. The analysis is guided by liturgical practices in the church and the monastic order connected to it. I

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15

Prives, Leslie. "Good Vibrations: Schnitta Tackling Acoustical Engineering." IEEE Women in Engineering Magazine 8, no. 2 (2014): 35–37. http://dx.doi.org/10.1109/mwie.2014.2353294.

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16

Brandão, Eric, William D'Andrea Fonseca, and Paulo Henrique Mareze. "An algorithmic approach to electroacoustical analogies." Journal of the Acoustical Society of America 152, no. 1 (2022): 667–78. http://dx.doi.org/10.1121/10.0012886.

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The low-frequency behavior of acoustical transducers can be simulated with the so-called electroacoustical analogies (or lumped parameters). The main idea is that visual inspection of the transducer allows the derivation of an electroacoustic circuit that can be analyzed. The technique is computationally efficient and provides significant physical insight into the transducer. Electroacoustical analogies are taught today in many courses around the world. However, it is difficult to find reading material with an algorithmic approach to derive the electroacoustic circuit from the visual inspectio

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17

Markham, Benjamin E. "An expanding pipeline: 20 + years of Acentech internships." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A18. http://dx.doi.org/10.1121/10.0022643.

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Acoustics interns at Acentech, a multidisciplinary acoustics, technology, and noise & vibration control consultancy based in Cambridge, Massachusetts, USA, have included undergraduate and graduate students as well as graduates in many fields of engineering, physics, and architecture. Acentech interns work on a deliberate mix of both project work and internal research and development, often inspired by research presented by academics in our field. For a time, interns were typically from one of approximately a dozen US-based graduate programs in acoustic, and more rarely, from one or two und

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18

Wu, Jiu Hui, Boris Luk’yanchuk, Hua Ling Chen, and Ai Qun Liu. "Light-Driven Acoustic Band Gap Based on Metal Nanospheres." Advanced Materials Research 74 (June 2009): 17–20. http://dx.doi.org/10.4028/www.scientific.net/amr.74.17.

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In this paper, light-driven acoustic band gap is presented by considering two metal nanospheres illuminated simultaneously by laser and acoustic waves. The interaction between the photonics and phonons is investigated through optical distribution force, van der Waals distribution force, and acoustic pressure upon these nanospheres. Based on the optical force and van der Waals force, the acoustic form functions for the metal nanoaggregates with different optical intensity are calculated, and the light-driven acoustics band gap at low frequency band has been found. It is shown that the band gap

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19

Golden, Matthew, Ethan Bourdeau, Jeffrey Fullerton, Herb Singleton, Karl Peterman, and Andrew Barnard. "Overview of technical certificate program from the Institute of Noise Control Engineering." Journal of the Acoustical Society of America 152, no. 4 (2022): A66. http://dx.doi.org/10.1121/10.0015564.

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Standards are often misunderstood by even the most seasoned of acoustic professionals, let alone new technicians and engineers in the field, as they are often very complicated, written in piecemeal fashion by committees and are updated often. Some of the standards even conflict with one another. To help alleviate this problem, the Institute of Noise Control Engineering (INCE) is developing two technical certificate programs designed to educate and evaluate participants on the details of common standards used in the noise control industry. Each program will contain education, testing, and conti

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20

Liu, Xu, Xiao Qin Liu, and Chang Liu. "Development of Near-Field Acoustical Holograph and its Review." Advanced Materials Research 971-973 (June 2014): 1598–601. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.1598.

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Near-field acoustic holography (NAH) is a powerful technique for identifying noise sources and visualizing acoustic field.The theory and algorithm of NAH techniques are introduced , and it is proved by experiment and simulation. The researches on near field acoustical holography (NAH) are reviewed，including the sound field separation technique and Patch NAH technique arisen in recent years.The difficulties in NAH and research on current situations are discussed , Finally,some engineering applications are introduced by detailed examples.

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21

Cho, Yong Thung, M. J. Roan, and J. S. Bolton. "A comparison of near-field beamforming and acoustical holography for sound source visualization." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 4 (2009): 819–34. http://dx.doi.org/10.1243/09544062jmes1209.

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Анотація:

Acoustical holography procedures make high-resolution visualization possible via estimation of the sound intensity on surfaces closer to the sources than the near-field measurement surface. Another source localization technique, beamforming, has been used to estimate the direction of arrival of sound from sources that typically lie in the far-field. However, little work has been done using beamforming as a visualization technique based on near-field measurements. As a result, the performance of beamforming and acoustical holography in terms of source resolution capabilities has not been direct

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22

Lindberg, Jan, and Mark Moffett. "Acoustical Society of America Silver Medal in Engineering Acoustics: John L. Butler." Journal of the Acoustical Society of America 138, no. 3 (2015): 1861–64. http://dx.doi.org/10.1121/1.4934192.

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23

Zagrai, Nickolay, and Vladislav Zakharevitch. "Integration discipline acoustical engineering for training specialists in acoustics and close areas." Journal of the Acoustical Society of America 117, no. 4 (2005): 2390. http://dx.doi.org/10.1121/1.4785813.

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24

Kumar, Sanjay, and Heow Pueh Lee. "Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances." Crystals 10, no. 8 (2020): 686. http://dx.doi.org/10.3390/cryst10080686.

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Анотація:

In the past two decades, acoustic metamaterials have garnered much attention owing to their unique functional characteristics, which are difficult to find in naturally available materials. The acoustic metamaterials have demonstrated excellent acoustical characteristics that paved a new pathway for researchers to develop effective solutions for a wide variety of multifunctional applications, such as low-frequency sound attenuation, sound wave manipulation, energy harvesting, acoustic focusing, acoustic cloaking, biomedical acoustics, and topological acoustics. This review provides an update on

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25

Paul, Stephan, Andrey R. da Silva, Erasmo F. Vergara, and Dinara X. da Paixão. "Brazil’s first undergraduate course in acoustical engineering." Journal of the Acoustical Society of America 128, no. 4 (2010): 2308. http://dx.doi.org/10.1121/1.3508121.

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26

Surez, E. "A successful undergraduate program in acoustical engineering." Journal of the Acoustical Society of America 128, no. 4 (2010): 2342. http://dx.doi.org/10.1121/1.3508291.

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27

Dlhý, Dušan. "The Effect of Free Joints on Sound Insulation of Constructions." Advanced Materials Research 855 (December 2013): 233–36. http://dx.doi.org/10.4028/www.scientific.net/amr.855.233.

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Анотація:

Noise protection of a building ́s interior is one of the fundamental functions of building constructions. These constructions can be understood as internal partitions, ceilings or external wall-/roof claddings. However, walls often consist of basic building materials and openings; such windows and doors as well as the acoustical properties of such structures are determined by both parts (e.g., a windows and the wall structure). The acoustical quality of opening is in general affected not only by the particular structure, but also by the concept of the mounting. Acoustical requirements should b

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28

Rindel, Jens Holger. "A note on meaningful acoustical parameters for open-air theatres." Acta Acustica 7 (2023): 20. http://dx.doi.org/10.1051/aacus/2023015.

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The acoustics of performance spaces are usually characterized by the reverberation time and a handful of other acoustical parameters defined in ISO 3382-1. However, these parameters have been derived with closed spaces in mind, and it is not obvious that the same parameters are meaningful in an open-air theatre. The lack of late reflections means that the decay curve is often far from a straight line, and the reverberation parameters turn out to be unreliable. Also, parameters that use the balance between early and late reflections are problematic when late reflections are more or less absent.

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29

Okhovatian, Sogand, and Viken Koukounian. "Construction and validation of computational techniques as part of a holistic approach to complex engineering design." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 269, no. 1 (2024): 1019–25. http://dx.doi.org/10.3397/nc_2024_0135.

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As a full-service provider of bespoke solutions to environmental noise problems, there is a need to have a precise understanding of the performance of our engineered products and complex assemblies. More specifically, there are risks, as well as limitations, to relying solely on a single scientific method-e.g., empirical, computational, numerical or analytical. In the following paper, we describe the validation process of sophisticated computational software-a suite of Siemens software-to bolster our risk assessment practices. Although computational tools generally require extensive 'calibrati

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30

Riccardi, Peter J., Zane T. Rusk, John A. Case, Heui Young Park, and Eric Rokni. "Penn State ASA student chapter educational workshops in engineering design tools for loudspeaker and amplifier system design." Journal of the Acoustical Society of America 152, no. 4 (2022): A255. http://dx.doi.org/10.1121/10.0016191.

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Hands-on workshops and projects are an effective way to provide meaningful and memorable STEM education. To promote practical acoustics and engineering knowledge, the Pennsylvania State University Acoustical Society of America student chapter hosted a series of workshops wherein students learned the basics of electroacoustic transduction, mechanical modeling, electronics design, and PCB routing. This educational effort was accomplished by sponsoring a three-way loudspeaker design project. Transduction topics were covered by optimizing the model of a ported woofer in MathWorks SimScape, using t

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31

Gong, Zhixiong, Shiyu Li, and Zhichao Ma. "Single focused-beam acoustical tweezers: Trapping cells in 3-D." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A263. http://dx.doi.org/10.1121/10.0023472.

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Single focused beams have shown great potential in acoustofluidics and medical ultrasound because of their large pressure gradient and acoustic-thermal effect, such as acoustical tweezers and high-intensity focused ultrasound (HIFU) technique. However, the three-dimensional trapping of typical cells is still challenging since cells in water have a positive acoustic contrast factor and will be repulsive from the focus [Gong and Baudoin, Phys. Rev. Applied 18, 044033 (2022)]. In this work, to reverse this positive acoustic contrast factor into negative, we propose to use a cell-friendly medium (

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32

Torres, Julio Cesar Boscher. "Acoustical Evaluation of the Itacuruçá Baptist Evangelical Church." International Journal of Architectural Engineering Technology 9 (December 28, 2022): 109–24. http://dx.doi.org/10.15377/2409-9821.2022.09.8.

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This paper presents the acoustical evaluation of a representative evangelical church in Rio de Janeiro, Brazil. The analysis, performed through measurements and simulations, has shown that the acoustic field needs to be more appropriate for the temple’s actual use. The analysis measured the impulse responses at 14 positions from 2 source locations and calculated Reverberation Time and Clarity Factor acoustic parameters. According to the literature and the ISO standards, the Reverberation Time was considered higher than the optimum value for both speech or music. An acoustic model for the templ

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33

Wang, Lily M., Erica E. Ryherd, Joseph A. Turner, and Jinying Zhu. "Graduate studies in acoustics at the University of Nebraska – Lincoln within the College of Engineering." Journal of the Acoustical Society of America 152, no. 4 (2022): A124. http://dx.doi.org/10.1121/10.0015758.

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Анотація:

Those interested in pursuing graduate studies and conducting research in acoustics are invited to learn more about opportunities at the University of Nebraska – Lincoln (UNL) within the College of Engineering. Dr. Lily Wang and Dr. Erica Ryherd work on architectural acoustics and noise control topics (http://nebraskaacousticsgroup.org ) within the Durham School of Architectural Engineering and Construction, based at UNL's Scott Campus in Omaha. Dr. Jinying Zhu in Civil and Environmental Engineering (also based on UNL’s Scott Campus in Omaha) is active in structural acoustics, using ultrasonic

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34

Jasinski, Christopher M., and Robert D. Celmer. "Effective educational practices, assessment, and applications in acoustics and vibration at the University of Hartford." Journal of the Acoustical Society of America 152, no. 1 (2022): 633–39. http://dx.doi.org/10.1121/10.0012697.

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Анотація:

The University of Hartford is home to two unique undergraduate engineering majors in acoustics, both sharing a core course layout of acoustics, vibrations, and projects. The Bachelor of Science in Mechanical Engineering with an Acoustics Concentration and the Bachelor of Science in Engineering in Acoustical Engineering and Music programs allow for two complementary tracks within the acoustics field, providing cohesive plans of study on many facets of listening and design. All Mechanical Engineering majors (regardless of concentration) are required to take Vibrations I and a course in Engineeri

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35

Grelowska, Grażyna, and Eugeniusz Kozaczka. "Underwater Acoustic Imaging of the Sea." Archives of Acoustics 39, no. 4 (2015): 439–52. http://dx.doi.org/10.2478/aoa-2014-0048.

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Анотація:

Abstract Acoustic waves are a carrier of information mainly in environments where the use of other types of waves, for example electromagnetic waves, is limited. The term acoustical imaging is widely used in the ultrasonic engineering to imaging areas in which the acoustic waves propagate. In particular, ultrasound is widely used in the visualization of human organs-ultrasonography (Nowicki, 2010). Expanding the concept, acoustical imaging can also be used to presentation (monitoring) the current state of sound intensity distribution leading to characterization of sources in observed underwate

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36

Okhovatian, Sogand, and Viken Koukounian. "Using empirical data to validate the role of computational fluid dynamics in various stages of aero-acoustic simulations." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A62—A63. http://dx.doi.org/10.1121/10.0026809.

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The purpose of utilizing higher level of understanding techniques is to improve the overall outcome of any process. As a full-service provider of complex engineering solutions to environmental noise problems, there is a need to house specialized knowledge to design and deliver bespoke solutions that are compatible with various constraints that implicate numerous subjects (acoustics, aerodynamics, structural, materials/chemical compatibility). The physics associated with seemingly simple products, such as an industrial acoustic silencer, is often complex. More specifically, its study should be

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Carvalho, António P. O., António E. J. Morgado, and Luís Henrique. "Relationships between Subjective and Objective Acoustical Measures in Churches." Building Acoustics 4, no. 1 (1997): 1–20. http://dx.doi.org/10.1177/1351010x9700400101.

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This study reports on subjective and objective acoustical field measurements made in a survey of 36 Catholic churches in Portugal built in the last 14 centuries. Monaural acoustical measurements (RT, EDT. C80, D50, TS and L) were taken at several source/receiver locations in each church and a group of college students was asked to judge the subjective quality of music. The listeners in each church evaluated live music performances at similar locations in each room. Evaluation sheets were used to record the listeners' overall impressions of room acoustic quality and also Loudness, Reverberance.

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Kienemund, Daniel, Nicole Bohn, Thomas Fink, et al. "Design and demonstration of acoustically optimized, fully-printed, BST MIM varactors for high power matching circuits." International Journal of Microwave and Wireless Technologies 10, no. 5-6 (2018): 620–26. http://dx.doi.org/10.1017/s1759078718000387.

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AbstractThis work addresses the piezoelectric induced reduction of quality factor in fully-printed metal-insulator-metal (MIM) barium strontium titanate (BST) thick film varactors designed for high power operation. An acoustically optimized varactor design is presented and compared to a non-optimized high-power varactor. The design is utilized to present a narrowband acoustic suppression technique based on defined weights. The acoustically optimized varactor consists of 162 varactor cells in a capacitive matrix. The cells in the matrix are interconnectable allowing for a variable unbiased capa

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Schomer, Paul D. "ACOUSTICAL SOCIETY OF AMERICA Silver Medal in Noise 2021: Paul D. Schomer." Journal of the Acoustical Society of America 151, no. 4 (2022): A193—A196. http://dx.doi.org/10.1121/10.0009988.

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The Silver Medal is presented to individuals, without age limitation, for contributions to the advancement of science, engineering, or human welfare through the application of acoustic principles, or through research accomplishment in acoustics.

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Graham, Megan E. "Long-term care as contested acoustical space: Exploring resident relationships and identities in sound." Building Acoustics 27, no. 1 (2019): 61–73. http://dx.doi.org/10.1177/1351010x19890478.

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As the global population ages, residential care facilities are challenged to create positive living environments for people in later life. Health care acoustics are increasingly recognized as a key design factor in the experience of well-being for long-term care residents; however, acoustics are being conceptualized predominantly within the medical model. Just as the modern hospital battles disease with technology, sterility and efficiency, health care acoustics are receiving similar treatment. Materialist efforts towards acoustical separation evoke images of containment, quarantine and contro

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Campbell, Richard H., and Frederick W. Bianchi. "The virtual orchestra; acoustical and audio engineering issues." Journal of the Acoustical Society of America 103, no. 5 (1998): 2824. http://dx.doi.org/10.1121/1.421926.

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Razavi, Zohreh. "Requirement of acoustical engineering discipline in building designs." Journal of the Acoustical Society of America 144, no. 3 (2018): 1740. http://dx.doi.org/10.1121/1.5067716.

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Myers, Arnold. "The acoustical engineering of brasswind instruments 1779–1929." Journal of the Acoustical Society of America 115, no. 5 (2004): 2565. http://dx.doi.org/10.1121/1.4809271.

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Casazza, Marco, Fabrizio Barone, Elvio Bonisoli, et al. "A procedure for the characterization of a music instrument vibro-acoustic fingerprint: the case of a contemporary violin." Acta IMEKO 12, no. 3 (2023): 1–6. http://dx.doi.org/10.21014/actaimeko.v12i3.1445.

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Violins are wooden musical instruments, whose quality is mainly evaluated on the basis of their aesthetics, as well as depending on the historical relevance of their makers. However, their acoustic quality remains a key evaluation parameter for performers and listeners. The instrument perceived quality, in turn, depends on one side, on the player, the environmental conditions and on the listeners’ psychoacoustic factors. On the other side, the quality of a violin depends on its materials, constructive and set-up parameters, that impact on the vibro-acoustical characteristics of the instrument.

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Jasinski, Christopher M., and Robert Celmer. "A Capstone Acoustical Engineering Design course with industry-sponsored projects." Journal of the Acoustical Society of America 151, no. 4 (2022): A114. http://dx.doi.org/10.1121/10.0010824.

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One of the transitions that engineering students must make as they enter the work force is the progression from theoretical concepts to applied/real world applications. At the University of Hartford, engineering design courses serve as culminating experiences devised to bridge this passage. One such course, Acoustics Capstone Design, challenges the student to apply the past three years' conceptual base of two acoustics and two vibration courses to a problem-solving opportunity replete with actual scenarios encountered in industry. Each year local firms approach our Engineering Applications Cen

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Postma, Barteld N. J., and Brian F. G. Katz. "An archaeoacoustic study on shape: the case study of the Iffland Theatre’s history (1802–1817)." Acta Acustica 7 (2023): 54. http://dx.doi.org/10.1051/aacus/2023046.

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Previous studies have discussed six pre-Sabine quantifiable guidelines employed in room acoustic design: voice directivity, audience rake, “echo theory”, stage acoustics, reverberation, and length, width, and height ratios. Around the turn of the 18th century, these notions led to two shapes that were theoretically regarded optimal for rooms with acoustical demands: ellipse and semi-circle. The first of these shapes to be tested was the ellipse in the design for the Iffland Theatre (1802–1817). As the resulting acoustics were notoriously poor, contemporary architects and acousticians discussed

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Rawlinson, R. D. "Acoustic Design of Lightweight Gas Turbine Enclosures." Journal of Engineering for Gas Turbines and Power 113, no. 4 (1991): 544–49. http://dx.doi.org/10.1115/1.2906275.

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Acoustic enclosures for the gas turbine industry have to comply with a number of stringent safety requirements including structural strength, fire resistance, and sound insulation. This has led traditionally to heavy enclosure designs. Corrugated enclosure panels offer significant structural advantages because of their increased bending stiffness. Consequently, a corrugated panel of a given thickness can give the same structural strength as a flat panel of substantially greater weight and thickness. However, corrugated panels are intrinsically less effective as a sound insulator than flat pane

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Tang, Xiaoning, Xiansheng Zhang, Xingmin Zhuang, Huiping Zhang, and Xiong Yan. "Acoustical analysis of corduroy fabric for sound absorption: Experiments and simulations." Journal of Industrial Textiles 48, no. 1 (2017): 201–20. http://dx.doi.org/10.1177/1528083717725912.

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Corduroy fabrics have been widely used in interior decoration currently. This work mainly investigated the acoustical properties of corduroy fabrics in relation to air permeability and airflow resistance. Five specimens with similar surface density and different wale width are used. The results indicated that corduroy fabrics with thicker wale width exhibited higher air permeability and lower airflow resistance. Furthermore, the increased width of wale is beneficial to improve the acoustic absorption of corduroy fabric. Two models based on air permeability and airflow resistance are taken to c

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Yoong, Carlos, Galo Durazno, Guido Abril, and Fausto Maldonado Galarza. "Case study: Developing an acoustics program in Ecuador Through Capstone Projects." Journal of the Acoustical Society of America 156, no. 4_Supplement (2024): A118. https://doi.org/10.1121/10.0035309.

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The Coastal Polytechnic School in Guayaquil, Ecuador is the leading engineering school in the country. Recent efforts have been targeted towards the creation of an acoustics program that enables students apply basic acoustics knowledge in real-life problems that the Faculty of Mechanical Engineering currently has. With the lack of courses in acoustics, various capstone projects have been conducted by the students under the supervision of experts in acoustics. Most of the basic training in acoustics theory is given during the first weeks of the project and then the student is exposed to field w

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Ramezanpour, Reza, and Yangfan Liu. "An equivalent source method for holographic visualization of acoustic sources in an apertured enclosure based on exterior measurements." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A56. http://dx.doi.org/10.1121/10.0018145.

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Most acoustical holography techniques are developed to visualize sound sources or reconstruct sound field in a free-space environment, where no boundary reflected or scattered sound are present. However, in some engineering applications, a sound scatter is an inseparable part of source mechanism. For example, for a centrifugal fan, the aerodynamic noise sources are the turbulent pressure inside the fan shell, but the source distribution is significantly altered if the fan shell is removed. Thus, in order to visualize the sources inside the fan shell by holography methods based on exterior soun

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