Results 1 to 10 of about 70,810 (262)

A Hybrid Active Noise Control System for the Attenuation of Road Noise Inside a Vehicle Cabin [PDF]

open access: yesSensors, 2020
This paper proposed a local active control method for the reduction of road noise inside a vehicle cabin. A multichannel simplified hybrid active noise control (sHANC) system was first developed and applied to the rear left seat of a large sport utility ...
Zibin Jia   +4 more
doaj   +2 more sources

Road traffic noise and children’s inattention [PDF]

open access: yesEnvironmental Health, 2017
Background An increasing number of children are exposed to road traffic noise levels that may lead to adverse effects on health and daily functioning. Childhood is a period of intense growth and brain maturation, and children may therefore be especially ...
Kjell Vegard Weyde   +9 more
doaj   +9 more sources

Calling at the highway: The spatiotemporal constraint of road noise on Pacific chorus frog communication [PDF]

open access: yesEcology and Evolution, 2017
Loss of acoustic habitat due to anthropogenic noise is a key environmental stressor for vocal amphibian species, a taxonomic group that is experiencing global population declines.
Danielle V. Nelson   +5 more
doaj   +2 more sources

Road traffic noise affects annoyance during urban built and forest walks, but not repetitive negative thinking or connectedness with non-human nature: A randomized controlled trial. [PDF]

open access: yesPLoS ONE
Previous research has examined the potential of exposure to greenspaces to reduce maladaptive emotion regulation strategies, such as repetitive negative thinking, and to foster connectedness with non-human nature.
Julia Schaupp   +4 more
doaj   +2 more sources

Effects of pump parameters on the oil absorption characteristics of bidirectional involute internal gear pumps

open access: yesResults in Engineering, 2023
The symmetrical oil suction and discharge chambers and the reversing rotation condition of bidirectional involute internal gear pumps result in low oil absorption capacity and flow pulsation due to cavitation.
Yantao Zhang, Zongbin Chen, Jian Liao
doaj   +1 more source

Adjustable Structure for Feedback Active Headrest System Using the Virtual Microphone Method

open access: yesApplied Sciences, 2021
Active headrest is an essential application for active noise control, capable of reducing low-frequency disturbance around an error microphone. However, in most cases, attaching microphones to ears is not feasible and noise attenuation performance is ...
Zeqiang Zhang   +4 more
doaj   +1 more source

Multi-Zone Active Noise Control Strategy for the Scattered Sound Control of an Infinite Rigid Cylinder

open access: yesApplied Sciences, 2021
Active noise control can be used to reduce the scattered sound of a reflecting object to make it invisible to incident acoustic waves. For the multi-zone active noise control of scattered sound from an infinite rigid cylinder, an active control strategy ...
Yuwei Feng   +4 more
doaj   +1 more source

A Review of Sound Field Control

open access: yesApplied Sciences, 2022
Sound field control (SFC) technology enables the active management of audio delivered within an acoustical environment. It includes three research directions: sound field reproduction, personal audio systems, and active noise control.
Jun Yang, Ming Wu, Lu Han
doaj   +1 more source

Road traffic noise and hypertension [PDF]

open access: yesOccupational and Environmental Medicine, 2006
Background:It has been suggested that noise exposure increases the risk of hypertension. Road traffic is the dominant source of community noise exposure.Objective:To study the association between exposure to residential road traffic noise and hypertension in an urban municipality.Methods:The study population comprised randomly selected subjects aged 19–
Gösta, Leon Bluhm   +3 more
openaire   +2 more sources

A Complementary Effect in Active Control of Powertrain and Road Noise in the Vehicle Interior

open access: yesIEEE Access, 2022
This study shows that a concurrent active noise control strategy for engine harmonics and road noise has a complementary effect. In particular, we found that engine booming noise is additionally attenuated when road noise control is concurrently used ...
Seonghyeon Kim, M. Ercan Altinsoy
doaj   +1 more source

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