In order to be able to estimate noise levels in residential areas it is important to understand the mode of propagation of railway noise in open ground conditions. Experiments were conducted to investigate the effect of train type and speed as well as distance from the track on measured noise ...
Places I prefer have muted noise levels - the gentle hum of an office, library murmurs, a small cafe's subdued vibe, or the peace of nature. I can concentrate so much better and feel more rejuvenated in quiet settings. Silence allows my mind to truly relax. 我更喜欢噪音小的地方--办公...
Within residential areas, noise levels ranged from 39–41dBA in low-density areas to 55–59dBA in high-density areas. Audiometric screening showed that 28 participants (55%) had normal hearing. Mild and moderate hearing impairment was recorded among 17(33%) and 6 (11.7%) participants, ...
On the other hand, Lilongwe City Council Mayor Richard Banda said council officials are now on the ground enforcing the law to ensure noise pollution is controlled in residential areas. “There are some property developers who are going into residential areas and building churches, bars and other ...
In modern society, noise levels are indeed constantly rising, and this is having a negative effect on our quality of life. There are a number of reasons for this trend, but I believe that it is possible to reduce noise pollution.
Study was carried out at 12 locations with sound level meter to assess day time and night time noise levels of Lucknow city. In residential areas, noise ranged between 67.7 to 78.9 and 52.9 to 56.4; in commercial cum traffic areas 74.8 to 84.2 and 68.2 to 74.9 and in industrial areas ...
The study of suburban noise control is in response to a demonstrated need for reduced noise levels in residential areas. It is an extension of two previous... DI Cook,DF Van Haverbeke - 《Internal Combustion Engines》 被引量: 1发表: 1977年 Proceedings of the Conference on Metropolitan Physica...
noise levels. The issue is worsened by the fact that many apartments undergo regular renovations, which may last for weeks or months at a time and often begin early in the morning and end only at night. Another major cause of noise pollution is traffic noise caused by the growing number ...
The range of noise pollution levels, LNP, at high-density residential areas is 58-68 dB (A), while that of low-density residential areas is 53-72 dB (A). The range of traffic noise index TNI at high-density residential areas is 34-107 dB (A), and that of low density residential ...
There must be a reason companies don't include the sound of the drone in advertisingmaterials. 各大公司不把无人机的声音写进广告材料中,肯定是有原因的。 6 Health and Well-being 健康和福祉 Urban designers are often concerned about sound levels in neighborhoods. ...