Relevant bibliographies by topics / Acoustic field prediction

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Acoustic field prediction'

Author: Grafiati
Published: 28 June 2021
Last updated: 29 July 2025

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Journal articles on the topic "Acoustic field prediction"

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He, Xianwen, Zhizhong Li, and Junping Sun. "Acoustic Field Prediction Method and Simulation Research Based on Acoustic Field Geometric Average Theory." Journal of Physics: Conference Series 2441, no. 1 (2023): 012024. http://dx.doi.org/10.1088/1742-6596/2441/1/012024.

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Abstract In order to meet the capability requirements of submarine radiated noise acoustic field prediction in free field and improve the detection and anti-detection capabilities, this paper proposes an acoustic field prediction method based on the geometric average theory of acoustic field. According to the measured self-noise information, a global search method is used. By calculating the average energy of the spherical, the extended compensation for different point distances is achieved, so as to predict the radiation noise at different distances. Through simulation experiments, it is foun
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ORSELLI, Joseph, Robin XAVIER, Jonathan JACQMOT, Daniel FERNáNDEZ COMESAñA, and Jared SCHMAL. "Hybrid acoustic modeling: far-field predictions from scanning 3D sound intensity data." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 4 (2024): 7431–38. http://dx.doi.org/10.3397/in_2024_3959.

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This research introduces a novel methodology for predicting the far-field acoustic behavior of complex vibro-acoustic sources, utilizing 3D sound intensity data acquired through Scan&Paint 3D's continuous scanning technology. By combining this experimental dataset with the computational modeling capabilities of the commercial acoustic package Actran, we establish a hybrid method capable of accurately computing noise generated by intricate vibro-acoustic phenomena. The use of a 3D sound intensity probe, in combination with an infrared stereo camera, accelerates the acquisition of acoustic d
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Yang, Da, and Cheuk Ming Mak. "A combined sound field prediction method in small classrooms." Building Services Engineering Research and Technology 42, no. 4 (2021): 375–88. http://dx.doi.org/10.1177/0143624421994229.

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In this paper, a new combination method for sound field prediction is proposed. An optimization approach based on the genetic algorithm is employed for optimizing the transition frequency of the combined sound field prediction method in classrooms. The selected optimization approach can identify the optimal transition frequency so that the combined sound field prediction can obtain more efficient and accurate prediction results. The proposed combined sound field prediction method consists of a wave-based method and geometric acoustic methods that are separated by the transition frequency. In l
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Satyavarma, K. L., and C. Neelima Devi. "Prediction of Non-Cavitating Marine Propeller Noise." Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) 23, no. 1 (2015): 1–6. https://doi.org/10.36842/jomase.v23i1.438.

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Noise reduction and control is an important problem in the performance of underwater acoustic systems. As the propeller rotates, it is subjected to unsteady force, which leads to discrete tonal noise, and cavitation. Therefore, underwater propeller noise can be classified into cavitating and non-cavitating noise Furthermore, sound generated by a propeller is critical in underwater detection and it is often related to the survivability of the vessel. This paper presents a numerical study on noises of the underwater propeller for different performance conditions. The non-Cavitating noise generat
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Jierula, Alipujiang, Shuhong Wang, Tae-Min OH, and Pengyu Wang. "Study on Accuracy Metrics for Evaluating the Predictions of Damage Locations in Deep Piles Using Artificial Neural Networks with Acoustic Emission Data." Applied Sciences 11, no. 5 (2021): 2314. http://dx.doi.org/10.3390/app11052314.

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Accuracy metrics have been widely used for the evaluation of predictions in machine learning. However, the selection of an appropriate accuracy metric for the evaluation of a specific prediction has not yet been specified. In this study, seven of the most used accuracy metrics in machine learning were summarized, and both their advantages and disadvantages were studied. To achieve this, the acoustic emission data of damage locations were collected from a pile hit test. A backpropagation artificial neural network prediction model for damage locations was trained with acoustic emission data usin
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Semiletov, Vasily A., and Sergey A. Karabasov. "Similarity scaling of jet noise sources for low-order jet noise modelling based on the Goldstein generalised acoustic analogy." International Journal of Aeroacoustics 16, no. 6 (2017): 476–90. http://dx.doi.org/10.1177/1475472x17730457.

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As a first step towards a robust low-order modelling framework that is free from either calibration parameters based on the far-field noise data or any assumptions about the noise source structure, a new low-order noise prediction scheme is implemented. The scheme is based on the Goldstein generalised acoustic analogy and uses the Large Eddy Simulation database of fluctuating Reynolds stress fields from the CABARET MILES solution of Semiletov et al. corresponding to a static isothermal jet from the SILOET experiment for reconstruction of effective noise sources. The sources are scaled in accor
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Miller, SAE, and Alexander N. Carr. "Theoretical investigation of alteration and radiation of large-scale structures due to jet impingement." International Journal of Aeroacoustics 18, no. 2-3 (2018): 231–57. http://dx.doi.org/10.1177/1475472x18812810.

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Jet flows impinge on launch pad structures and aircraft carrier deck blast deflectors. Turbulent structures are deformed and acoustic radiation is reflected by the deflector. The coupling of reflected acoustic waves with the instability waves of the jet turbulence increases their amplitude and causes a feedback loop. Resultant far-field acoustic radiation is amplified. This amplification results in additional tones with significant spectral broadening occurring at frequencies corresponding to the constructive interference. We present a simple prediction methodology in the form of an acoustic a
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Zhang, Xiaoyun, Xiaoan Zhang, Jiangang Xu, Li Yang, and Gao Song. "Acoustic Radiation Prediction Model Rationality and Mechanism of Steel-Spring Floating-Slab Tracks on Bridges." Applied Sciences 13, no. 19 (2023): 11073. http://dx.doi.org/10.3390/app131911073.

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In the actual operation of urban rail transit (URT), the vibrations of steel-spring floating-slab tracks (SSFSTs) are amplified, and the track structure has strong low-frequency acoustic radiation; therefore, it is necessary to study the acoustic radiation of SSFSTs. In addition, multi-block short track structures are often laid within the URT lines; however, many researchers studying the reduction of vibration track service performance problems only select one or several block tracks to study. In reality, many short track structures will become sound sources when a train passes, and different
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Gee, Kent L., Micah Shepherd, Brian E. Anderson, Tracianne B. Neilsen, Matthew S. Allen, and Jonathan D. Blotter. "Graduate acoustics at Brigham Young University." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A253. http://dx.doi.org/10.1121/10.0027403.

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Graduate studies in acoustics at BYU prepare students for industry, research, and academia by complementing in-depth coursework with publishable research. Coursework provides students with a foundation in acoustical principles, practices and measurement skills, including a experimental techniques and technical writing. Labs across the curriculum cover calibration, directivity, scattering, absorption, laser Doppler vibrometry, experimental methods for dynamic structures, lumped-element mechanical systems, equivalent circuit modeling, arrays, filters, room acoustics, active noise control, and ne
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Gao, Sheng Yao, and De Shi Wang. "An Indirect Boundary Element Method for Computing Sound Field." Advanced Materials Research 476-478 (February 2012): 1173–77. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1173.

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Computing sound field from an arbitrary radiator is of interest in acoustics, with many significant applications, one that includes the design of classical projectors and the noise prediction of underwater vehicle. To overcome the non-uniqueness of solution at eigenfrequencies in the boundary integral equation method for structural acoustic radiation, wave superposition method is introduced to study the acoustics. In this paper, the theoretical backgrounds to the direct boundary element method and the wave superposition method are presented. The wave superposition method does not solve the Kir
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Dissertations / Theses on the topic "Acoustic field prediction"

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Kücükcoskun, Korcan. "Prediction of free and scattered acoustic fields of low-speed fans." Phd thesis, Ecole Centrale de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00758274.

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This thesis proposes to predict the sound emitted from low-speed fans and its scattered-field by installation effects related to industrial applications. Both tonal and broadband components of fan noise are investigated. Methods existing in the literature contain assumptions and simplifications in order to deal with fan noise problems in analytical manner, such as consideration of an observer located in the far-field of the source. Firstly, the effect of far-field assumption in the tonal fan noise formulation is addressed. Using artificial blade sources, a comparison between two closed-form an
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Majvald, František. "Metody akustické holografie v blízkém poli v prostředí LabVIEW." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442539.

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Near-field acoustical holography is a standard method for sound source visualization and localization. In this thesis, commonly used and newly published near-field acoustic holography methods are introduced and analysed. In addition, regularization methods are presented together with finding options of optimal regularization parameter. Based on theory, a LabVIEW library is built containing four implemented near-field acoustical holography algorithms and two regularization methods. To verify the correctness of implementations, a testing application has been made. This application allows testing
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Chan, Gary Ka-Yue. "Prediction of low-frequency sound-pressure fields in fitted rooms for active noise control." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/214.

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Low-frequency noise is a health concern for workers in industrial workshops; rooms of highly varying size and dimensions, usually containing obstacles (the ‘fittings’). Low-frequency noise can be generated from sources such as reciprocating or rotating machinery, or ventilation systems. As the exposure time to the noise lengthens, workers are increasingly at risk to harmful effects such as hearing loss, communication difficulty, personal discomfort, and even nausea from induced body vibrations. Passive methods of noise control, such as absorption or barriers, generally perform better at high f
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Wang, Yuebing. "The application of optical interferometry to the measurement and prediction of focused acoustic fields." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/33661.

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High-Intensity Focused Ultrasound (HIFU) has been applied as an acceptable therapeutic technique and various HIFU systems have achieved clinical approval for general use in numerous countries. To ensure that an HIFU system is used in a safe and reliable application, its acoustic field needs to be characterized accurately. However, the traditional methods mostly are based on hydrophones, these sensors are found short of sufficient temporal and spatial resolutions, especially, they can only tolerate small acoustic pressures. This work is concerned with the feasibility of optical interferometry i
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Cousins, Owen Mathew. "Prediction of sound pressure and intensity fields in rooms and near surfaces by ray tracing." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/843.

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The health, safety, comfort and productivity of a room’s occupants is greatly influenced by the sound field within it. An acoustical engineer is often consulted during the design of a room to prevent or alleviate unwanted acoustical problems. Prediction models are often used to find the most cost-effective solution to a given acoustical problem. The accuracy of sound-field prediction varies with the particular model, as do the parameters predicted. Most models only predict sound-pressure levels. Many only predict energetic quantities, ignoring wave phase and, therefore, interference and m
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Wei, Jiangtao. "Modelling of fuselage/floor structures and associated cabin acoustics for the prediction of propeller induced interior sound fields." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361553.

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Zachariah, Cherian Renil. "Statistical Model for Predicting Multiple Sclerosis Cortical Lesion Detection Rates with Ultra High Field Imaging." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293726279.

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Lee, Kyung Taek. "Evaluation of the computational validity of the image model in predicting the sound field in a wedge-shaped layer using acoustical reciprocity." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School; Available from the National Technical Information Service, 1991. http://edocs.nps.edu/npspubs/scholarly/theses/1991/Dec/91Dec_Lee.pdf.

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Thesis (M.S. in Engineering Acoustics) Naval Postgradaute School, December 1991.<br>Thesis advisor(s): Coppens, Alan B. ; Sanders, James V. "December 1991." Includes bibliographical references. Also available online.
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Pignier, Nicolas. "Predicting the sound field from aeroacoustic sources on moving vehicles : Towards an improved urban environment." Doctoral thesis, KTH, Farkost och flyg, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-205791.

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In a society where environmental noise is becoming a major health and economical concern, sound emissions are an increasingly critical design factor for vehicle manufacturers. With about a quarter of the European population living close to roads with heavy traffic, traffic noise in urban landscapes has to be addressed first. The current introduction of electric vehicles on the market and the need for sound systems to alert their presence is causing a shift in mentalities requiring engineering methods that will have to treat noise management problems from a broader perspective. That in which no
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Mhatre, Natasha. "The Prediction Of Field Cricket Phonotaxis In Complex Acoustic Environments." Thesis, 2007. https://etd.iisc.ac.in/handle/2005/883.

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Animals detect, recognize and localize relevant objects in noisy, multi-source environments. Female crickets locate potential mates in choruses of simultaneously calling males using acoustic signals, a behaviour termed phonotaxis. The mechanisms underlying cricket phonotaxis are now understood across multiple levels: biophysical, neurobiological and behavioural. Phonotaxis has, however, rarely been tested in the complex real-world acoustic environments and no attempts have been made to predict acoustic orientation behaviour in these conditions despite our extensive understanding of its underly
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Books on the topic "Acoustic field prediction"

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Leonid, Oliker, Biswas Rupak, and Research Institute for Advanced Computer Science (U.S.), eds. New computational methods for the prediction and analysis of helicopter noise. Research Institute for Advanced Computer Science, NASA Ames Research Center, 1996.

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R, Moselle J., and United States. National Aeronautics and Space Administration., eds. A hybrid numerical technique for predicting the aerodynamic and acoustic fields of advanced turboprops: Final report. Arvin Calspan Advanced Technology Center, 1988.

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United States. National Aeronautics and Space Administration, ed. Prediction of sound fields in acoustical cavities using the boundary element method: A thesis submitted to the faculty of Purdue University. National Aeronautics and Space Administration, 1985.

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Fan noise prediction system development: Source/radiation field coupling and workstation conversion for the acoustic radiation code. National Aeronautics and Space Administration, 1993.

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Book chapters on the topic "Acoustic field prediction"

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Kampanis, N. A. "Fast and Accurate Finite Element Methods for the Numerical Prediction of the Acoustic Field." In Full Field Inversion Methods in Ocean and Seismo-Acoustics. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_4.

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Dong, Longjun, and Xibing Li. "The Case of the Velocity Field Imaging in Mine—The Prediction of Rock Instability Risk." In Velocity-Free Localization Methodology for Acoustic and Microseismic Sources. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8610-9_12.

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Jiao, Xiaodong, Jin Tao, Hao Sun, and Qinglin Sun. "Prediction and Analysis of Acoustic Displacement Field Using the Method of Neural Network." In Communications in Computer and Information Science. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-8126-7_11.

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Ewart, T. E., and S. A. Reynolds. "Experimental Ocean Acoustic Field Moments Versus Predictions." In Ocean Variability & Acoustic Propagation. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3312-8_2.

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Powers, John P., Benito Baylosis, Peter Gatchell, and William Reid. "Experimental Comparison of Measured Ultrasound Pressure Fields with Theoretical Prediction." In Acoustical Imaging. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4419-8772-3_8.

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Mcdonald, B. Edward, Joe Lingevitch, and Michael Collins. "Effects of Environmental Variability on Focused Acoustic Fields." In Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0626-2_47.

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Uscinski, B. J. "Acoustic Scattering in Wave-Covered Shallow Water. The Coherent Field." In Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0626-2_41.

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Rüttgers, Mario, Seong-Ryong Koh, Jenia Jitsev, Wolfgang Schröder, and Andreas Lintermann. "Prediction of Acoustic Fields Using a Lattice-Boltzmann Method and Deep Learning." In Lecture Notes in Computer Science. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59851-8_6.

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Abstract Using traditional computational fluid dynamics and aeroacoustics methods, the accurate simulation of aeroacoustic sources requires high compute resources to resolve all necessary physical phenomena. In contrast, once trained, artificial neural networks such as deep encoder-decoder convolutional networks allow to predict aeroacoustics at lower cost and, depending on the quality of the employed network, also at high accuracy. The architecture for such a neural network is developed to predict the sound pressure level in a 2D square domain. It is trained by numerical results from up to 20
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Lermusiaux, P. F. J., and C. S. Chiu. "Four-Dimensional Data Assimilation for Coupled Physical-Acoustical Fields." In Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0626-2_52.

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Sturm, F., M. C. Pelissier, and D. Fattaccioli. "Development of an Acoustic Field Predictor in a Three Dimensional Oceanic Environment." In Full Field Inversion Methods in Ocean and Seismo-Acoustics. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_11.

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Conference papers on the topic "Acoustic field prediction"

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Zhou, Yanlin, Ting Zhang, Lei Cheng, and Jianlong Li. "Data-Based Acoustic Far Scattered Field Prediction in Underwater Environment." In OCEANS 2024 - SINGAPORE. IEEE, 2024. http://dx.doi.org/10.1109/oceans51537.2024.10682408.

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Park, Yongsung, Peter Gerstoft, Seunghyun Yoon, and Woojae Seong. "Physics-Informed Neural Networks for Ocean Acoustic Field Prediction with Envelope Smoothing." In ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2025. https://doi.org/10.1109/icassp49660.2025.10888842.

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Chen, Changan, Jordi Ramos, Anshul Tomar, and Kristen Grauman. "Sim2Real Transfer for Audio-Visual Navigation with Frequency-Adaptive Acoustic Field Prediction." In 2024 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2024. https://doi.org/10.1109/iros58592.2024.10802636.

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Zheng, Xinshuo, Shuai Tang, Peiqin Fan, and Chi Zhang. "Research on Intelligent Prediction Method of Underwater Acoustic Field Based on Parabolic Equation." In 2024 IEEE 4th International Conference on Information Technology, Big Data and Artificial Intelligence (ICIBA). IEEE, 2024. https://doi.org/10.1109/iciba62489.2024.10868249.

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Korkotadze, Giorgi, Giorgi Chiqovani, and Roman Jobava. "Analytical Prediction of Magnetic Field Shielding for Multilayer Thin Sheets Excited by Loop Sources." In 2024 IEEE 29th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED). IEEE, 2024. http://dx.doi.org/10.1109/diped63529.2024.10706154.

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Wang, Yuebing. "Prediction of acoustic field radiated from focusing transducer." In 2013 6th International Congress on Image and Signal Processing (CISP). IEEE, 2013. http://dx.doi.org/10.1109/cisp.2013.6743894.

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Arroyo Ramo, Andrea, Stéphane Moreau, Richard D. Sandberg, Michaël Bauerheim, and Marc C. Jacob. "Controlled Diffusion airfoil self-noise, an acoustic far-field prediction." In AIAA AVIATION 2023 Forum. American Institute of Aeronautics and Astronautics, 2023. http://dx.doi.org/10.2514/6.2023-3505.

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Yao, Weigang, Min Xu, and Zhimin Chen. "LES Prediction of Flow and Acoustic Field of Free Jet." In 14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference). American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-2973.

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Sharma, Sanjay, and Dennis Siginer. "Permeability Measurement of Orthotropic Fibers Under an Acoustic Force Field." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78567.

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Using the validated acoustic method of determining physical properties of porous materials, acoustical properties of the orthotropic medium is used to predict longitudinal and transverse permeability. Measurement of samples in the impedance tube is conducted using ASTM E 1050 for a frequency range of 50 Hz to 6.4 KHz. The acoustical method is shown to compute longitudinal and transverse permeability for various porosity levels. The method describes permeability prediction for carbon, glass and hybrid lay ups. Longitudinal permeability calculated from the absorption coefficient of sized and uns
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Baladhandapani, Dhanasekar, Sai Ravikiran Thaduturu, and Isaac Du. "Vehicle Interior Audio System Noise Prediction Based on Inverse Acoustic Approach and Directivity Pattern." In WCX SAE World Congress Experience. SAE International, 2025. https://doi.org/10.4271/2025-01-8640.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Automotive audio components must meet high quality expectations with ever-decreasing development costs. Predictive methods for the performance of sound systems in view of the optimal locations of loudspeakers in a car can help to overcome this challenge. Use of simulation methods would enable this process to be brought up front and get integrated in the vehicle design process. The main objective of this work is to develop a virtual auralization model of a vehicle interior with audio system. The application of inverse num
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Reports on the topic "Acoustic field prediction"

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Muhlestein, Michael, and Carl Hart. Geometric-acoustics analysis of singly scattered, nonlinearly evolving waves by circular cylinders. Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/38521.

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Geometric acoustics, or acoustic ray theory, is used to analyze the scattering of high-amplitude acoustic waves incident upon rigid circular cylinders. Theoretical predictions of the nonlinear evolution of the scattered wave field are provided, as well as measures of the importance of accounting for nonlinearity. An analysis of scattering by many cylinders is also provided, though the effects of multiple scattering are not considered. Provided the characteristic nonlinear distortion length is much larger than a cylinder radius, the nonlinear evolution of the incident wave is shown to be of muc
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Mizrach, Amos, Michal Mazor, Amots Hetzroni, et al. Male Song as a Tool for Trapping Female Medflies. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7586535.bard.

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This interdisciplinaray work combines expertise in engineering and entomology in Israel and the US, to develop an acoustic trap for mate-seeking female medflies. Medflies are among the world's most economically harmful pests, and monitoring and control efforts cost about $800 million each year in Israel and the US. Efficient traps are vitally important tools for medfly quarantine and pest management activities; they are needed for early detection, for predicting dispersal patterns and for estimating medfly abundance within infested regions. Early detection facilitates rapid response to invasio
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Lermusiaux, Pierre F. Quantifying, Predicting and Exploiting Environmental and Acoustic Fields and Uncertainties. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada531379.

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Lermusiaux, Pierre F. Quantifying, Predicting and Exploiting Environmental and Acoustic Fields and Uncertainties. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada542094.

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McInerney, Michael, Matthew Brenner, Sean Morefield, Robert Weber, and John Carlyle. Acoustic nondestructive testing and measurement of tension for steel reinforcing members. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42181.

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Many concrete structures contain internal post-tensioned steel structural members that are subject to fracturing and corrosion. The major problem with conventional tension measurement techniques is that they use indirect and non-quantitative methods to determine whether there has been a loss of tension. This work developed an acoustics-based technology and method for making quantitative tension measurements of an embedded, tensioned steel member. The theory and model were verified in the laboratory using a variety of steel rods as test specimens. Field tests of the method were conducted at thr
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Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs, and Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7570549.bard.

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The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the proj
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