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Quiet Spaces
2025-11-04
Children with poor auditory memory often exhibit the following characteristics: a narrow auditory memory span, making it difficult to retain longer pieces of information; inability to accurately recall previously learned information, such as forgetting verbally assigned homework; and because they forget quickly, they struggle to connect new and old knowledge, resulting in low comprehension and...
2025-11-04
The report reveals that in 2023, the 12345 government service hotline in prefecture-level cities and above nationwide, along with departments such as ecology and environment, public security, and housing and urban-rural development, received approximately 5.706 million noise complaints, an increase of 1.203 million from the previous year. From the national ecology and environment...
What are the noise control measures for industrial boiler room blower rooms?
2025-11-04
Based on the analysis of noise from the industrial boiler room's blower room, the following control measures can be taken: 4. Sound insulation measures: Install soundproof walls, soundproof windows, and other soundproofing facilities around the blower room to block the noise propagation path and reduce the noise's impact on the surrounding environment. Through the above targeted noise control...
2025-11-04
A recent study published in *npj Science of Learning* offers a new perspective on this challenge: immersive multisensory training significantly improved speech perception in noisy environments among older adults, particularly those with weaker hearing and working memory. The research team recruited 39...
How to control noise in coal mines?
2025-11-04
- Establish a noise monitoring system: Install noise monitoring equipment to monitor and record the noise level of the coal mine in real time, enabling timely detection and resolution of noise problems. Through the above analysis and measures, the coal mine can effectively reduce noise pollution, protect the health and safety of workers, and minimize the impact on the surrounding environment...
Under the new noise regulations, "directional sound" will prevent noise from exceeding the limits!
2025-11-04
The Sanyuan Intelligent Directional Sound System employs beamforming technology, algorithms, and advanced electronics to accurately project sound onto a designated area, achieving directional sound propagation and minimizing noise pollution. It also allows for flexible adjustment of the sound coverage area and angle, enabling precise sound targeting.
What are the classifications and uses of industrial soundproof enclosures?
2025-11-04
Soundproof enclosures absorb, reflect, and isolate noise through specific structures and materials, providing a relatively quiet working environment. These materials absorb noise energy and reduce noise reflection and propagation. In short, industrial soundproof enclosures are an important noise control device that can reduce noise propagation, protect the working environment, and meet...
Original Noise Standards | Industrial Enterprise Boundaries
2025-11-04
Other regulations regarding the location of measuring points: When the factory boundary is enclosed by a wall and there are noise-sensitive buildings nearby, the measuring point should be selected at a location 1m outside the factory boundary and at least 0.5m above the wall; when the actual emission status of the sound source cannot be measured at the factory boundary (e.g., the sound source...
The most complained-about environmental problem in 2023 was actually this!
2025-11-04
The report points out that there are three main reasons for the increasing number of noise complaints: First, with the rapid development of urban construction, population density has increased, the number of motor vehicles has increased, and industrial, commercial, and construction activities have become more frequent. In addition, residential areas are often mixed with commercial and...
What are the application scenarios and customization requirements for sound-absorbing wedges?
2025-11-04
Acoustic wedges, as an important acoustic treatment tool, play an indispensable role in numerous settings thanks to their superior sound absorption performance and flexible customization options. Whether in concert halls, recording studios, industrial plants, or school classrooms, acoustic wedges effectively improve the acoustic environment and enhance people's well-being...
How to control the excessive noise from gas-fired boilers in power plants?
2025-11-04
To address the excessive noise from gas-fired boilers in power plants, we first need to analyze potential noise sources and then develop corresponding noise control measures. These include installing vibration-damping materials around potentially vibrating components to reduce vibration transmission. During the implementation of these measures, regular equipment inspections and maintenance are...
2025-11-04
On-site experts used professional noise and vibration detection equipment to measure noise levels near the company's main noise sources, the riverside back wall of the factory, and residential areas. They found that the noise level near the company's loom equipment reached 95 decibels, with noticeable ground vibrations. After listening to the support team's analysis and suggestions, the...
2025-11-04
Schematic diagrams of the micro-perforated plates at different positions in the noise reduction device (1-micro-perforated plate; 6-acoustic black hole structure; 7-first limiting mechanism; 8-speaker). Gree Electric's noise reduction patent, through intelligent adjustment, an acoustic black hole structure, and active noise reduction functionality from the speaker, opens up new avenues for...
What can be done about excessive noise in the air compressor room?
2025-11-04
There are many effective measures to address noise problems in air compressor rooms, which can effectively reduce noise generation and propagation. Noise isolation involves building soundproof walls or using sound-insulating materials around the air compressor room to isolate the noise source from the external environment. This article introduces various noise sources in air compressor rooms...
Fun fact: Noise has color too!
2025-11-04
White noise is a random signal or process with a constant power spectral density, meaning its frequency components have uniform power across the entire audible frequency range (0-20 kHz). Orange noise is a quasi-static noise with a finite power spectrum and a finite number of zero-power narrowband signals across the entire continuous frequency range. ...
2025-11-04
Water tightness and air tightness: Waterproof and energy-saving double barrier. Water tightness rating: Level 6 (≥600Pa), can withstand 500L/(㎡·h) of rainstorm; mandatory selection in rainy areas of southern China. Traffic noise control in Panyu, Guangzhou: Laminated insulated glass + Level 9 wind-resistant profiles + ventilators, satisfying ventilation + sound insulation + defogging...
How to reduce industrial noise in petrochemical plants?
2025-11-04
For noise sources such as production and conveying equipment, technical measures such as soundproof enclosures, vibration isolation devices, and silencers can be used to reduce noise propagation and radiation. In addition to controlling noise sources, noise protection equipment, such as earplugs and noise-canceling helmets, should be provided for petrochemical plant workers to reduce the...
2025-11-04
Interpretation: Noise has many causes. Removing environmental noise primarily aims to mitigate the impact of uncontrollable factors, such as thunder, rain, and wind. All environmental noise that is difficult to generate or resolve through human intervention is excluded from regulation. ① Let's look at the first change: This revision of the Noise Law...
The principle of no-fault liability applies to the prevention and control of noise pollution.
2025-11-04
In disputes concerning tort liability caused by excessive noise, even if the responsible party is not at fault, as long as a tort exists and there is a causal relationship between the tort and the damage, the responsible party should bear the liability. However, it should be noted that although the principle of no-fault liability applies, the tortfeasor can still seek redress based on legal...
What are some solutions for noise control in industrial plants?
2025-11-04
1. Noise Source Control: First, it's necessary to analyze the sources of noise and take effective measures to reduce or eliminate them, such as improving equipment and reducing vibration and friction noise during operation. In summary, industrial plant noise control is a comprehensive project that requires control at the source, blocking the transmission path,...
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