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high sound pressure levels

Some Statistical Aspects of Firecracker Noise

Some Statistical Aspects of Firecracker Noise

... peak sound pressure level at a given location due to an individual firecracker depends mainly on its sound power and the distance from the place of its ...of sound power levels, it is ...

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Sensitivity of tail rotor noise to helicopter configuration in forward flight

Sensitivity of tail rotor noise to helicopter configuration in forward flight

... of high SPL ahead of the main rotor, as shown in ...of high SPL to either side of the tail rotor, as shown in ...dicted sound pressure levels at the locations of highest noise on the ...

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Vibro Acoustic Analysis of Laminated Composite Plate Roof of Car Body

Vibro Acoustic Analysis of Laminated Composite Plate Roof of Car Body

... and High performance of modern ...acoustic sound field in a vehicle is important in order to avoid or to minimize unwanted noise conditions, such as boom or high pressure levels at ...

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Aversiveness of sound in marine mammals : psycho physiological basis, behavioural correlates and potential applications

Aversiveness of sound in marine mammals : psycho physiological basis, behavioural correlates and potential applications

... received levels that are loud enough to exceed the startle threshold even in animals with slightly compromised ...too high to avoid inflicting TTS which in turn would lead to an undesirable elevation of the ...

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Characterization and Impact of Low Frequency Wind Turbine Noise Emissions

Characterization and Impact of Low Frequency Wind Turbine Noise Emissions

... A-weighted levels of wind turbine noise are generally quite low, so as long as they are within regulatory limits, no further consideration is often given to a potential noise ...often high fluctuations in ...

159

Evaluation of sound pressure levels in a pediatric intensive care unit

Evaluation of sound pressure levels in a pediatric intensive care unit

... all high frequency ventilators tested in the study and used for neonatal care, produced ambient sound levels above the current recommended safety ...of high NPSs in children hospitalized in ...

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Assessment of Indoor and Outdoor Noise Pollution at a University Hospital Based on Acoustic Measurements and Noise Mapping

Assessment of Indoor and Outdoor Noise Pollution at a University Hospital Based on Acoustic Measurements and Noise Mapping

... The high indoor sound pressure levels were found to be the result of hundreds of people circulating in the hospital every day and of hospital staff and students talking in the hallways and in ...

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Assessment of Sound Levels in a Neonatal Intensive Care Unit in Tabriz, Iran

Assessment of Sound Levels in a Neonatal Intensive Care Unit in Tabriz, Iran

... Introduction: High levels of sound have several negative effects, such as noise-induced hearing loss and delayed growth and development, on premature infants in neonatal intensive care units ...

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Assessment of the Effects of Different Sound Pressure Levels on Distortion Product Otoacoustic Emissions (DPOAEs) in Rats

Assessment of the Effects of Different Sound Pressure Levels on Distortion Product Otoacoustic Emissions (DPOAEs) in Rats

... chamber, sound energy was equally distributed in all directions, meaning that animals would receive an equal amount of sound no matter where they were in this ...

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Measuring Sound Pressure Levels during Thermoacoustic Instabilities in Large Engines: Case Study

Measuring Sound Pressure Levels during Thermoacoustic Instabilities in Large Engines: Case Study

... This paper attempts to present some registers of sound pressure levels during the operation of large diesel engines (10 MW). During these registers we have found the preparation, occurrence and ...

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Noise assessment and sound map projection using Surfer and Noise At Work tools in a tire manufacturing complex in Iran, 2018

Noise assessment and sound map projection using Surfer and Noise At Work tools in a tire manufacturing complex in Iran, 2018

... excessive sound pressure levels, as defined by the World Health Organization (WHO) ...understanding high frequency ...unwanted sound caused by activities in a particular time and at a ...

9

Hearing with an atympanic ear: good vibration and poor sound pressure detection in the royal python, Python regius

Hearing with an atympanic ear: good vibration and poor sound pressure detection in the royal python, Python regius

... effective pressure hearing with the loss of a functional outer and middle ...insensitive sound detection via sound-induced head ...effective pressure hearing is reinforced by the observation ...

12

Preliminary Study On Brake Squeal Noise For The Development Of Faulty Parts Indicator

Preliminary Study On Brake Squeal Noise For The Development Of Faulty Parts Indicator

... Figure 2: Faulty of the brake pads (“Disc Brake Drag” www. dnr.louisiana.gov) Base on some driver experiences, squeal noise that come from brake always disturb their driving concentration. The squeal noise usually came ...

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Investigating the Optimum Efficiency of Acoustoelectric Conversion Plate Devices

Investigating the Optimum Efficiency of Acoustoelectric Conversion Plate Devices

... convert sound energy to electricity, where the developed apparatus is made of three parts, the thin film coil, the spring, and the high-intensity magnetic ...injecting sound vibration in connection ...

10

Infant Sleep Machines and Hazardous Sound Pressure Levels

Infant Sleep Machines and Hazardous Sound Pressure Levels

... output levels of ISMs used in close proximity are potentially dangerous, we do not know how they are being used in everyday life (ie, proximity of device to child, type of noise, volume, duration of ...

7

Combined Influence of Body Mass Index and Waist Circumference on Coronary Artery Disease Risk Factors Among Children and Adolescents

Combined Influence of Body Mass Index and Waist Circumference on Coronary Artery Disease Risk Factors Among Children and Adolescents

... The first purpose of this study was to determine whether BMI and WC have independent effects on CAD risk factors among children and adolescents. The results indicated that, when both BMI and WC were used as continuous ...

10

Sound velocity of hcp-Fe at high pressure: experimental constraints, extrapolations and comparison with seismic models

Sound velocity of hcp-Fe at high pressure: experimental constraints, extrapolations and comparison with seismic models

... megabar pressure have become ...and sound velocity of hcp-Fe were based on X-ray diffraction (XRD) ...the sound velocities indirectly, relying heavily on interpretative schemes and assumptions in ...

11

Using accelerometers to determine the calling behavior of tagged baleen whales

Using accelerometers to determine the calling behavior of tagged baleen whales

... a sound pressure signal exhibiting the spectral characteristics of a fin whale call from a tag needs to be based on known physical laws governing underwater ...a sound source, sound ...

7

Audio Cartography: Visual Encoding of Acoustic Parameters

Audio Cartography: Visual Encoding of Acoustic Parameters

... The guidelines address essential design challenges as they provide the means to envision and map sound in large-scale environments. We were able to transfer auditory stimuli systematically to visual metaphors by ...

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Online Full Text

Online Full Text

... It can be observed that for all of the models used it was not possible to predict a flow separation upstream of the mirror edge for the simple geometry. Instead all of the models seem to predict the same trend that after ...

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