Impact of noise is a very wide range of environmental pollution, since the middle of the 20th century,
with the development of industrialized civilization; noise pollution has become increasingly serious.
Noise pollution belongs to physical pollution, with the resulting emergence of the sound source, sound
source to stop and disappear. Noise not only harmful to people's health, but also affects the way peoplework and live. The development of new energy not only in solar energy and wind energy projects on
traditional production competition.
1.2. Research at home and abroad
Currently, re-use on the noise pollution problem in our country started relatively late. Domestic
researchers are looking for ways how to reduce noise, and few people go to study how to use the social
life of noise pollution. That the construction of the house, such as when the use of noise barriers, car
manufacturers in the production of automobiles by the use of some of dry materials, urban planners in the
transport corridors and so set against the dry measures.
In foreign countries, in addition to the source of the blockage, but also make good use of noise, mainly:
Eliminate
Weeds - the adverse noise on plant growth, different plants for different noise sensitivity of the band
not the same, this made the noise Zapper, inducing early germination of weed seeds, pesticide application
can be removed before the crop growth Weeds.
Noise removal - U.S. researchers have developed a noise removal alarm, the device can be used for the
chimney dust, control temperature, high pressure, high corrosive environment of the dust particles and
atmospheric pollution.
Noise beat the opposition - the use of noise can also be an enemy uniform, has developed a "noise
bomb ", able to release a lot of noise between the explosion wave, paralysis of central nervous system of
people, people temporarily unconscious, the missile can be used to deal with Terrorists, especially the
hijackers and so on.