Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Shock Waves01:16

Shock Waves

2.1K
While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
2.1K
Boundary Layer Characteristics01:18

Boundary Layer Characteristics

194
When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
194
Sound Waves: Interference00:53

Sound Waves: Interference

3.8K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.8K
Reducing Line Loss01:18

Reducing Line Loss

182
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
182
Plane Potential Flows01:23

Plane Potential Flows

424
Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
424
Sound Intensity Level00:53

Sound Intensity Level

4.2K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Noise Monitoring and Health Assessment at a Hospital Near Tan Son Nhat Airport: Associations between Aircraft and Road Traffic Noise, Sleep Quality, and Health Outcomes.

Noise & health·2026
Same author

Seasonal influence of a roadside tree belt on sleep disturbance in Tomakomai, Japan.

The Science of the total environment·2026
Same author

Indoor discomfort from ground transportation traffic vibration and noise-Comparison between Vietnamese and Japanese young participants.

The Journal of the Acoustical Society of America·2026
Same author

Structural Characteristics of Docosahexaenoic Acid and Eicosapentaenoic Acid Inhibiting Amyloid-β Fibrillation.

Biochemistry·2025
Same author

Relationships Between Road and Railway Noise Exposure and Self-Reported Sleep Disturbance for Detached Houses in Japan.

International journal of environmental research and public health·2025
Same author

Assessing Annoyance and Sleep Disturbance Related to Changing Aircraft Noise Context: Evidence from Tan Son Nhat Airport.

International journal of environmental research and public health·2025

Related Experiment Video

Updated: Aug 1, 2025

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
14:55

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

3.4K

Models of Aviation Noise Impact in the Context of Operation Decrease at Tan Son Nhat Airport.

Tran Thi Hong Nhung Nguyen1, Bach Lien Trieu1, Thu Lan Nguyen1

  • 1Graduate School of Natural Science and Technology, Shimane University, Matsue 690-8504, Japan.

International Journal of Environmental Research and Public Health
|April 28, 2023
PubMed
Summary

Air traffic reductions due to COVID-19 significantly decreased airport noise levels. This led to reduced noise annoyance and insomnia among residents near Tan Son Nhat Airport, improving community health.

Keywords:
annoyancecommunity responsehealth riskinsomnianoise impactsleep effectsstructural equation model

More Related Videos

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
07:48

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

Published on: April 4, 2025

446
Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator
03:49

Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator

Published on: May 19, 2023

1.0K

Related Experiment Videos

Last Updated: Aug 1, 2025

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
14:55

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

3.4K
Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
07:48

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

Published on: April 4, 2025

446
Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator
03:49

Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator

Published on: May 19, 2023

1.0K

Area of Science:

  • Environmental acoustics
  • Urban planning
  • Public health

Background:

  • COVID-19 pandemic led to air traffic restrictions, altering urban soundscapes.
  • Tan Son Nhat Airport (TSN) experienced reduced flight operations starting March 2020.
  • The study investigates the impact of these changes on community noise perception and health.

Purpose of the Study:

  • To assess the effect of reduced air traffic on community noise annoyance and insomnia.
  • To compare noise levels and resident responses before and after flight operation changes.
  • To model the relationship between noise exposure, annoyance, insomnia, and resident health.

Main Methods:

  • Community surveys conducted in August 2019 (before) and June/September 2020 (after).
  • Structural Equation Models (SEMs) developed to analyze noise annoyance and insomnia.
  • Measurement of sound pressure levels and average daily flight numbers at 12 sites around TSN.

Main Results:

  • Average sound pressure levels decreased from 64 dB in 2019 to 59-60 dB in 2020.
  • Average daily flights reduced from 728 in 2019 to 299-413 in 2020.
  • SEM analysis revealed a link between reduced noise, decreased annoyance and insomnia, and improved resident health.

Conclusions:

  • Reduced air traffic significantly improved the acoustic environment around TSN.
  • Lower noise levels correlated with decreased noise annoyance and insomnia.
  • The study highlights the positive impact of noise reduction on urban community well-being.