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Sleep in a Pod
Heading Towards a "Quiet Realm": How Rail Transit Noise Control Can Reshape the Urban Soundscape
2025-11-04
- Traction system "silent upgrade": The permanent magnet synchronous traction motor reduces noise by approximately 15 decibels compared to traditional asynchronous motors. Combined with frequency conversion control optimization, this achieves train acceleration and start-up as if in "silent mode." For example, the composite sound-absorbing barriers installed in residential sections of Shanghai...
2025-11-04
I. Technological Breakthrough: Soundproof Windows Breakthrough Soundproof window technology breaks through traditional boundaries, forming a triple protection system of "materials-structure-intelligence," which can attenuate high-frequency noise by 30-45 decibels; the innovatively developed gradient density composite window frame, through the principle of gradual change in acoustic impedance,...
Noise "kills" people? Deceased's family seeks 1.29 million yuan in compensation.
2025-11-04
The court of first instance held that although Mr. Lian and the two workers were not liable for the sudden death of Mr. Li, considering the economic losses suffered by Mr. Li's family due to his death, the court believed that, based on the actual circumstances of the case, the losses should be shared by both parties. The court of first instance ordered Mr. Lian, Mr. Xing, and Mr. Yang to...
2025-11-04
Then I realized that for many people lacking knowledge about soundproofing, buying lightweight, self-adhesive, inexpensive, and seemingly soft cotton materials like soundproofing cotton is a subconscious soundproofing measure. Based on the principle of sound absorption, applying soundproofing cotton alone can weaken sound reflections and reduce indoor reverberation and noise...
2025-11-04
- Sound barrier wall: A 3-meter-high sound-absorbing panel is erected around the construction site, reducing noise by 15-20 decibels (actual measurement data). - Air conditioner outdoor unit "silencer": The equipment is wrapped with polyester fiber sound-absorbing cotton and paired with sound insulation baffles, reducing decibels by 30%. - Three-piece evidence collection kit: Decibel APP on...
Commentary | Effective Noise Reduction Returns Quiet to the People
2025-11-04
To help enterprises solve the problem of excessive noise emissions in some areas of their factory boundaries, the "Suzhou·China Sound Valley" actively promoted research and innovation in factory vibration reduction and noise reduction technologies, designing a series of targeted metamaterials that effectively reduce noise emissions at the source. This is in line with the Ministry of Ecology...
2025-11-04
The draft for public comment proposes that residential communities should, in principle, meet the noise limits required by their respective acoustic functional zones. For noise disturbances caused by daily life within residential communities, community residents' committees, owners' committees, and property management companies should promptly intervene and mediate; the draft also encourages...
2025-11-04
As people move from vast fields to towering buildings, our demands for sound quality will inevitably increase. Noise pollution can cause harm to the human body, ranging from mild physical discomfort to severe mental breakdown. Case 3: On October 10, 2020, an incident occurred in the Houzhuchen Xiujia Garden residential community in Hangzhou...
Protecting the tranquility under the blue sky: Combating aircraft noise requires concerted efforts
2025-11-04
The Civil Aviation Administration of China (CAAC), based on higher-level laws such as the Noise Pollution Prevention and Control Law and the Environmental Noise Pollution Prevention and Control Law, has formulated a series of regulations and technical guidance documents, including the "Guidelines for the Prevention and Control of Noise Pollution at Civil Aviation Airports," which detail...
2025-11-04
For many working people, renting is the only way to secure a place to live. However, renters often face problems such as sharing accommodation, living in noisy areas, or near main roads, leading to various noise disturbances. This noise is primarily caused by poor sound insulation in windows and walls, but renters often find themselves facing difficulties with adequate soundproofing...
Application of Automatic Environmental Noise Monitoring System in Urban Construction
2025-11-04
In the construction of smart cities, automatic environmental noise monitoring systems, as a crucial component of infrastructure, provide real-time noise data to support intelligent decision-making in urban management. In conclusion, the widespread adoption of automatic environmental noise monitoring systems in urban construction is not only an effective means of addressing noise pollution but...
2025-11-04
Netizen 5: I don't know what you guys are thinking. No one lives downstairs, but I don't jump rope upstairs either. Firstly, my house is small, and secondly, my child is already 1.83 meters tall and weighs over 200 pounds, so I'm afraid the building will collapse if he jumps. But my child really needs exercise. In the past two years, he has lost 30 pounds by jumping rope, and all his fat has...
2025-11-04
I. Analysis of Noise Issues in Older Communities External Noise Intrusion: Traffic noise: Buildings facing the street are disturbed by traffic and horn noise (60-80 decibels); Commercial noise: Restaurants on the ground floor, square dancing, and other mid-to-high frequency noises have strong penetrating power. Internal Noise Transmission: Poor floor insulation: Footsteps and furniture...
Is it normal to be woken up by the alarm clock upstairs?
2025-11-04
And it's not just the alarm clock; I've heard many other things too. I tolerated your child wailing at 1 a.m., I didn't say anything when your mother chopped dumpling filling until 9 p.m., and I didn't say anything when your eldest daughter yelled at your son for no reason-that's your family business. Sometimes you also hysterically yell at people, and I think I've come to understand things a...
2025-11-04
The newly built residential buildings employ a four-tiered noise reduction system: "park noise reduction, building sound insulation, household sound insulation, and indoor sound insulation." This not only optimizes the physical space but also represents a necessary innovation in addressing noise pollution during urbanization. The park utilizes micro-topography design (such as earth mounds and...
What you think is normal may actually be four signs of noise pollution.
2025-11-04
Short-term exposure to loud noise (like drilling for 2 hours) can cause temporary swelling of the cochlear hair cells, which may recover. However, prolonged exposure to noise can cause hair cells to break down and die, resulting in irreversible damage to the ear and hearing loss. A study published in *The Lancet Neuroscience* showed that exposing healthy subjects to loud noise for 1...
2025-11-04
The "Acoustic Design and Planning Standards for Civil Buildings" sets specific noise requirements for different types of building complexes. The maximum acceptable noise level at night is 60 decibels. However, in reality, sounds exceeding 50 decibels can disrupt a person's sleep, and those exceeding 70 decibels can impair hearing over time...
Noise can help you fall asleep? Try these white noises to change your perception of noise.
2025-11-04
Scientists have discovered that the brain resonates with monotonous, rhythmic sounds from the outside world. This resonance puts the brain in a quiet, relatively inactive state, producing feelings of fatigue and drowsiness, thus promoting sleep. Playing white noise while falling asleep makes people harder to wake up at night and less susceptible to external stimuli...
2025-11-04
4. The quality of the community's green spaces is important. Plants act as natural noise barriers, and good landscaping can significantly improve the quietness of the neighborhood. High building density means a large population, leading to a more varied range of residents and their character; finding good neighbors is a matter of luck. Many people will customize their home's layout to their...
Noise-canceling headphones: Potential risks behind convenience
2025-11-04
Prolonged use of noise-canceling headphones may cause the brain to "forget" how to filter noise, especially during adolescence when the brain's complex auditory processing abilities are not yet fully developed. When noise-canceling headphones block out low-to-mid-frequency ambient sounds (such as traffic white noise) for extended periods, the activity of the superior temporal gyrus, the region...
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