Relevant bibliographies by topics / Equivalent sound pressure level

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

Academic literature on the topic 'Equivalent sound pressure level'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Equivalent sound pressure level"

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Haughton, Peter M., Guy R. Lightfoot, and John C. Stevens. "Peak-to-peak equivalent sound pressure level." International Journal of Audiology 42, no. 8 (2003): 494–95. http://dx.doi.org/10.3109/14992020309081520.

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Corthals, Paul. "Sound Pressure Level of Running Speech: Percentile Level Statistics and Equivalent Continuous Sound Level." Folia Phoniatrica et Logopaedica 56, no. 3 (2004): 170–81. http://dx.doi.org/10.1159/000076939.

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Shiraishi, Kimio, and Yukihiko Kanda. "Measurements of the equivalent continuous sound pressure level and equivalent A-weighted continuous sound pressure level during conversational Japanese speech." AUDIOLOGY JAPAN 53, no. 3 (2010): 199–207. http://dx.doi.org/10.4295/audiology.53.199.

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Tandon, N. "Calculating equivalent continuous sound pressure levels, LAeq." Applied Acoustics 24, no. 3 (1988): 243–44. http://dx.doi.org/10.1016/0003-682x(88)90029-1.

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Radziszewski, Leszek, Michał Kekez, Andrzej Bąkowski, and Alžbeta Sapietova. "Modeling of acoustic pressure variability at thoroughfare." MATEC Web of Conferences 254 (2019): 02013. http://dx.doi.org/10.1051/matecconf/201925402013.

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The work presents the analysis of variability of acoustic pressure, calculated from values of equivalent sound level, recorded in monitoring station. The models of acoustic pressure variability were built in the form of regression trees and random forest. The analysis of accuracy of obtained models was carried out. These models were subsequently used for reconstruction of equivalent sound level for periods of monitoring station inactivity.
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Vencovsky, Vaclav, Frantisek Rund, and David Slegl. "Reference Equivalent Threshold Sound Pressure Levels for Nonaudiometric Headphones." Journal of the Audio Engineering Society 66, no. 3 (2018): 167–71. http://dx.doi.org/10.17743/jaes.2018.0009.

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Arlinger, S., and C. Kinnefors. "Reference Equivalent Threshold Sound Pressure Levels for Insert Earphones." International Journal of Audiology 18, no. 4 (1989): 195–98. http://dx.doi.org/10.3109/14992028909042193.

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Arlinger, S., and C. Kinnefors. "Reference Equivalent Threshold Sound Pressure Levels for Insert Earphones." Scandinavian Audiology 18, no. 4 (1989): 195–98. http://dx.doi.org/10.3109/01050398909042193.

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Ho, Cheng-Yu, Pei-Chun Li, and Shuenn-Tsong Young. "Reference equivalent threshold sound pressure levels for Apple EarPods." Journal of the Acoustical Society of America 141, no. 2 (2017): EL115—EL119. http://dx.doi.org/10.1121/1.4976110.

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Makarewicz, Rufin. "Moments of probability distribution of equivalent continuous A-weighted sound pressure level(LAeqT)." Journal of the Acoustical Society of Japan (E) 14, no. 1 (1993): 25–28. http://dx.doi.org/10.1250/ast.14.25.

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Dissertations / Theses on the topic "Equivalent sound pressure level"

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Van, der Aerschot Mathieu. "Affordable headphones for accessible screening audiometry : an evaluation of the sennheiser hd202 ii supra-aural headphone." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/58766.

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It is estimated that approximately 360 Million people have a permanent disabling hearing loss (WHO, 2015). The majority of these people live in lower to middle income countries, where screening and follow-up treatment is not always accessible (WHO, 2015). School based hearing screening is one of the procedures that are not always available due to a number of challenges one of which include the high cost of audiometrical headphones. School based hearing screening is performed with an audiometrical headphones and audiometer, it usually can be used to test all school-aged children and adults. In
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Tarquinio, Nancy. "Newborn response to decreased sound pressure level." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74573.

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Human newborns' response to decreased sound pressure level (SPL) was investigated with a localized headturning habituation procedure. Following criterion orientation (three headturns toward the sound out of four consecutive trials) and habituation (three consecutive trials with no headturns or headturns away from the sound), study 1 and 2 assessed newborn female infants' (M age = 41 hrs.) responses to lower-volume sounds immediately following habituation and following a 55-sec delay, respectively. Generalization of habituation to decreased volume following delay with recovery immediately follo
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Fagelson, Marc A., and Frederick N. Martin. "The Occlusion Effect and Ear Canal Sound Pressure Level." Digital Commons @ East Tennessee State University, 1998. https://dc.etsu.edu/etsu-works/1582.

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Comparisons were made between changes in the audibility of bone-conduction stimuli to differences in the sound pressure present in the external auditory canal when ears were occluded. Fifteen listeners with normal middle ear function were tested using pure tones of 250, 500, and 1000 Hz, delivered via a bone-conduction oscillator placed on the mastoid process and the frontal bone. At all three frequencies, and both sites of stimulation, ear canal sound pressures were greater in the occluded than in the unoccluded conditions. Concurrently, the test signals were detected at lower intensities, al
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Grodek, Kristen Ashley. "The Effect of Sound Pressure Level Variation on Aerodynamic Measures." Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1239321162.

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Olsson, Mikael, and Anders Söderberg. "Design guideline for audible warning signal and determination of sound pressure characteristics : Second version." Thesis, Örebro universitet, Akademin för naturvetenskap och teknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-19412.

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Today Atlas Copco Rock Drills AB hasn’t got any method to determine how many warning alarms they need on their machines and how they should be mounted to use their full potential. At the moment a travel alarm is usually placed in the front of the machine and a reverse alarm in the back. Then a measurement of the sound pressure level around the machine is performed to see if it is enough to pass the limit according to different ISO-standards. Otherwise they have to mount some extra alarms and then do the measurements again until the standards are fulfilled. The aim of this thesis work is to dev
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Gustafsson, Linda. "Undersökning av ljudnivåer på skolgårdar : - samt hur fasad och fönster dimensioneras med uppmätta värden." Thesis, Mälardalen University, Department of Public Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-5733.

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<p>This report is written on commission by WSP Acoustics. The report studies the outdoor sound levels on school yards in Stockholm. The questions given by the company to be answered was what are the actual sound levels at diffrent school yards with low traffic noise and how can you construct a facade element that reduces the sound level from the outside and meet the indoor requirements. Mesurements for four hours was done at eight schools set north and south of the city centre. The measurement period included one school break and one lunch break. The results of the measurements were that the e
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WINTZELL, LOUISE. "Acoustic Textiles : the case of wall panels in home environment." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17698.

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Abstract Noise has become an increasing public health problem and has become serious environment pollution in our daily life. This indicates that it is in time to control and reduce noise from traffic and installations in homes and houses. Today a plethora of products are available for business, but none for the private market. The project describes a start up of development of a sound absorbing wall panel for the private market. It will examine whether it is possible to make a wall panel that can lower the sound pressure level with 3 dB, or reach 0.3 s in reverberation time, in a normally fur
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Sonja, Krstić. "Istraživanje uticaja promene vrste materijala na frekvencijski spektar muzičkih instrumenata." Phd thesis, Univerzitet u Novom Sadu, Tehnički fakultet Mihajlo Pupin u Zrenjaninu, 2009. https://www.cris.uns.ac.rs/record.jsf?recordId=71264&source=NDLTD&language=en.

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Disertacija obuhvata opis osnovnih pojmova i metoda merenja iz oblasti muzičke akustike, detaljnije razrađeni teorijski model pona&scaron;anja zvučnog talasa u cevi frule i detaljnu analizu frekvencijskog spektra tonova odsviranih na jednodelnim i dvodelnim frulama, na glavi dvodelnih frula i tonova dobijenih upotrebom različitih vrsta prigu&scaron;ivača.<br>The dissertation presents a description of the Musical acoustics basic facts andmeasuring methods , a profoundly developed theoretical model of behaviour of sound waves in sheperd&#39;s flute, and very detailed frequency spectrum analysis
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Virebrand, Marcus. "Real-time monitoring of voice characteristics usingaccelerometer and microphone measurements." Thesis, Linköpings universitet, Reglerteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-69760.

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VoxLog is a portable voice accumulator, that uses both an accelerometer that measures skin vibrations and a regular microphone to collect data. The goal of the thesis was to implement and evaluate methods that based on this data estimate the three different voice parameters fundamental frequency, phonation and soundpressure level. For pitch, three different methods were evaluated. The different methods all require relatively low computational power since the goal was to implement at least one of them on the digital signal processor in the VoxLog. The results from these evaluations show that th
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Björklund, Staffan. "Normativa data för samband mellan subglottalt tryck och ljudtrycksnivå." Thesis, Uppsala universitet, Logopedi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217727.

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Syftet med föreliggande studie var att undersöka sambandet mellan subglottalt tryck och ljudtrycksnivå, och undersöka inverkan av kön och tonhöjd. Röststyrkan är starkt beroende av subglottalt tryck och sambandet har analyserats i ett flertal studier, som alla visar på ett linjärt förhållande mellan logaritmen av subglottala trycket och ljudtrycksnivån (SPL). Schutte (1980) analyserade sambandet för 21 kvinnor och  24 män som producerade ett stort antal mätdata med olika SPL och tonhöjd. Tryck mättes med ballong i esofagus. Tanaka &amp; Gould (1982) analyserade 4 kvinnor och 6 män på tre ljudn
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Books on the topic "Equivalent sound pressure level"

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America, Acoustical Society of, ed. Specifications for integrating-averaging sound level meters. Acoustical Society of America, 1998.

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Escudier, Marcel. Fluids and fluid properties. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0002.

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In this chapter it is shown that the differences between solids, liquids, and gases have to be explained at the level of the molecular structure. The continuum hypothesis makes it possible to characterise any fluid and ultimately analyse its response to pressure difference Δ‎p and shear stress τ‎ through macroscopic physical properties, dependent only upon absolute temperature T and pressure p, which can be defined at any point in a fluid. The most important of these physical properties are density ρ‎ and viscosity μ‎, while some problems are also influenced by compressibility, vapour pressure
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Mebazaa, Alexandre, and Mervyn Singer. Therapeutic strategy in cardiac failure. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0152.

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The fundamental therapeutic principles of heart failure management are for acute heart failure with mainly signs of pulmonary congestion, normal or high blood pressure, and no signs of low cardiac output to reduce pulmonary congestion without affecting blood pressure. Management principles of cardiogenic shock management comprise improvement of forward flow with restoration/maintenance of adequate organ perfusion. Appropriate management requires sound appreciation of the underlying pathophysiology, awareness of the actions and potential side-effects of each therapeutic intervention, and a leve
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Smith, Leslie S. Audition. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199674923.003.0015.

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Audition is the ability to sense and interpret pressure waves within a range of frequencies. The system tries to solve the what and where tasks: what is the sound source (interpretation), and where is it (location)? Auditory environments vary in the number and location of sound sources, their level and in the degree of reverberation, yet biological systems have robust techniques that work over a large range of conditions. We briefly review the auditory system, including the auditory brainstem and mid-brain major components, attempting to connect its structure with the problems to be solved: lo
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Book chapters on the topic "Equivalent sound pressure level"

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Weik, Martin H. "sound pressure level." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_17725.

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Weik, Martin H. "impulse sound pressure level." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_8726.

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Eargle, John M. "Sound Pressure and dB Lp (Sound Pressure Level)." In Electroacoustical Reference Data. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2027-6_1.

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Weik, Martin H. "weighted-impulse sound pressure level." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_21068.

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Weik, Martin H. "A-weighted impulse sound pressure level." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_1215.

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Faßmann, Benjamin, Michaela Herr, Roland Ewert, and Jan Delfs. "Emulation of Sound Pressure Level Spectra Based on Numerical Data." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25253-3_70.

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Pal, Palash, Rituparna Datta, Deepak Rajbansi, and Aviv Segev. "A Neural Net Based Prediction of Sound Pressure Level for the Design of the Aerofoil." In Communications in Computer and Information Science. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37838-7_10.

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Matsuoka, Eiki, Takahiko Kurahashi, Yuki Murakami, et al. "Identification for Input Sound Pressure Level in Hammering Test Based on Adjoint Variable and Finite Element Methods." In Advances in Structural and Multidisciplinary Optimization. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67988-4_38.

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Eargle, John M. "Sound Pressure Level Produced by 1 Acoustic Watt as a Function of Room Constant and Distance from Source." In Electroacoustical Reference Data. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2027-6_25.

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Martínez–Rams, Ernesto A., and Vicente Garcerán–Hernández. "Speaker Recognition Based on a Bio-inspired Auditory Model: Influence of Its Components, Sound Pressure and Noise Level." In New Challenges on Bioinspired Applications. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21326-7_2.

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Conference papers on the topic "Equivalent sound pressure level"

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Lobo, Hetty N. C. C., José A. P. C. Lobo, Clarice C. Daga, et al. "Sound Emission Level in Spinning Classes and the Influence in the Health of Teachers." In ASME 2018 Noise Control and Acoustics Division Session presented at INTERNOISE 2018. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ncad2018-6127.

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Noise presents itself today as the most frequent physical agent in the workplace and its harmfulness is already proven by the literature. Among its main consequences are noise-induced hearing loss that can be caused by any type of excessive sound emission, including those used in Spinning classes. The objective of the present study was to evaluate the sound pressure levels in Spinning classes in Brasília-DF academies, as well as to identify the teacher’s perception of their auditory condition. The Bruel &amp; Kjaer 2250 sound pressure gauge was used to ensure the reliability of measurements. 4
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Yamamoto, T., S. Maruyama, S. Nishiwaki, and M. Yoshimura. "Topology Optimization of Poroelastic Structures to Minimize Mean Sound Pressure Levels." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49582.

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In optimization problems that aim to minimize noise, elastic structures have been designed so that fundamental eigenfrequencies depart from excitation frequencies. Moreover, for the sake of simplicity, sound pressure responses have rarely been calculated. In this paper, we propose a new topology optimization method for the design of poroelastic material layouts that minimize sound pressure levels by sound attenuation. In this method, the surrounding air is exactly modeled, and poroelastic material is located in a space filled with air to efficiently dissipate power. The Biot’s theory is incorp
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Islam, Rashid, Mahmoud Shaaban, and Atef Mohany. "Phase-Locked PIV Measurements of Vortex Shedding Characteristics Downstream of Straight Circular Finned Cylinders During Acoustic Resonance." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93745.

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Abstract Excitation of acoustic resonance by flow perturbation downstream of cylinders can result in hazardous levels of acoustic pressure. Previous studies have shown that straight finned cylinders are susceptible to flow-excited acoustic resonance. In this work, the excitation of acoustic resonance by flow around finned cylinders of different fin parameters including the spacing between the fins, the thickness of the fin, and the height of the fin is investigated. All the investigated finned cylinders have the same equivalent diameter. Phase-locked particle image velocimetry (PIV) measuremen
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Arafa, Nadim, and Atef Mohany. "Flow-Excited Acoustic Resonance of Single Finned Cylinder in Cross-Flow." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28785.

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The flow-excited acoustic resonance of single straight finned cylinder in cross-flow is investigated experimentally in this work. This phenomenon has been investigated in some detail for the case of bare cylinders; however, the effect of adding fins to the cylinders on the flow-sound interaction mechanism is not yet fully understood. During the experiments, the acoustic cross-modes of the duct housing the cylinder are self-excited due to the vortex shedding that emerges from the cylinder’s surface. In order to determine the effect of different fin parameters on the onset and intensity of acous
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Hamakawa, Hiromitsu, Yuji Kouno, and Eiichi Nishida. "Effect of Fins on Vortex Shedding Noise Generated From a Circular Cylinder in Cross Flow." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30290.

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In the present paper, the effect of twist-serrated fins around a bare tube on the Aeolian tone was experimentally investigated. These fins were mounted spirally around a bare tube and had the same geometry as those actually used in boiler tubes. We measured the intensity of velocity fluctuation, spectrum of velocity fluctuation, coherence of Karman vortex in the spanwise direction, dynamic lift force, and sound pressure level of the aerodynamic noise generated from finned tubes with various fin pitches. An Aeolian tone induced by Karman vortex shedding was observed in the case of a finned tube
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Ries, Hans-Christoph, Mateus Vieira Carlesso, Christian Eigenbrod, Stephen Kroll, and Kurosch Rezwan. "On the Performance of Porous Sound Absorbent Ceramic Lining in a Combustion Chamber Test Rig." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95492.

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This paper discusses the potential of using porous ceramic lining as insulating material in combustion chambers with respect to their sound absorbent ability to suppress thermoacoustic instabilities. For this purpose a combustion chamber test rig was developed and different types of ceramic linings were tested. The examined range of power was between 40 and 250 kW and the air-propane equivalence ratio was between 1.2 and 2.0. The overall sound pressure level and frequency domain of a lean premixed swirl stabilized and piloted burner are presented. The resonance frequencies and sound pressure l
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Hodoshima, Nao. "Correlation Between a Questionnaire About Noise-Induced Hearing Loss and SPL of Portable Music Players of High School and University Students." In ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ncad2012-1412.

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The risk of noise-induced hearing loss has been increased for young generations. Several studies pointed out that one reason is listening to digital audio players with a sound pressure level that leads to damage to hearing. This study conducted a questionnaire on 209 high school and university students living in Tokyo about their current situation regarding noise-induced hearing loss. The questionnaire includes the frequency of earphones/headphones usage, noise exposure, self-reported hearing conditions and hearing-related lifestyle. This study also measured A-weighted equivalent sound pressur
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Wang, Yong-Yi, Millan Sen, and Peter Song. "Longitudinal Stress Limits in Managing Spans and Other Longitudinal Loads." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64533.

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Stresses along the length of pipelines, termed longitudinal stresses, are generated by pipeline construction, service conditions, and changes in pipe support conditions. Although there are no explicit federal regulations limiting longitudinal stresses for in-service pipelines, pipeline operators typically reply on design requirements in established standards, such as ASME B31.4, B31.8, and CSA Z662, to manage possible integrity concerns arising from longitudinal stresses. In this paper longitudinal stress limits in existing standards are reviewed. These standards include CSA Z662, ASME B31.4,
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Wang, J. P., G. Liu, S. Chang, and L. Y. Wu. "Topology Optimization of Gearbox to Reduce Radiated Noise." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-48086.

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In this paper, topology optimization of gearbox to reduce the radiated noise is studied based on the analysis of modal acoustic contribution and panel acoustic contribution. Firstly, the bearing dynamic loads are obtained by solving the dynamic equations of gear system. Secondly, the vibration of gearbox is calculated using FEM and the radiated noise is simulated using BEM by taking these bearing dynamic loads as excitations. Thirdly, the panel having larger contribution to the sound pressure level (SPL) at a specific field point is found by panel acoustic contribution analysis (PACA), and thi
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Hamada, Shingo, Seiji Nakashima, Chisachi Kato, and Yoshinobu Yamade. "Aerodynamic Noise Simulation of Propeller Fan by Large Eddy Simulation." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37145.

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In this paper, unsteady flow and aerodynamic noise are numerically investigated for a half-open type propeller fan used for outdoor air conditioner components. The flow field is calculated by Front Flow/Blue, which is based on Large Eddy Simulation (LES). The Standard Smagorinsky Model (SSM) and Dynamic Smagorinsky Model (DSM) were used as sub-grid scale models. Aerodynamic noise was calculated by Curle’s equation based on the pressure fluctuation on the blade surface computed by LES. The computed static pressure rise of the fan showed reasonable agreement with the measured equivalent. The tim
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Reports on the topic "Equivalent sound pressure level"

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Job, Jacob. Mesa Verde National Park: Acoustic monitoring report. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2286703.

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In 2015, the Natural Sounds and Night Skies Division (NSNSD) received a request to collect baseline acoustical data at Mesa Verde National Park (MEVE). Between July and August 2015, as well as February and March 2016, three acoustical monitoring systems were deployed throughout the park, however one site (MEVE002) stopped recording after a couple days during the summer due to wildlife interference. The goal of the study was to establish a baseline soundscape inventory of backcountry and frontcountry sites within the park. This inventory will be used to establish indicators and thresholds of so
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