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NOISE POLLUTION AND ITS EFFECT ON URBAN AREAS presentation


Posted by: seminar presentation
Created at: Saturday 01st of May 2010 09:11:28 AM
Last Edited Or Replied at :Saturday 01st of May 2010 09:11:28 AM
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¢ Filtering networks are used to measure the sensation whose sensitivity varies as that of human ear.
¢ Widely used weighting network is ˜A™ weighing. They are represented as dB A.




Decibel

Decibel is widely used as measure of sound level. The ratio of the lowest sound power level to loudest power level is approximately one to one million.
Sound Power level, Lw= 10 log10 (W/ Wref)
Sound Pressure level , Lp= 20 log10 (P/ Pref)

Parameters that affect measurement
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NOISE POLLUTION


Posted by: seminar class
Created at: Monday 28th of March 2011 01:24:12 AM
Last Edited Or Replied at :Wednesday 13th of February 2013 10:54:58 PM
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quantitative study of the relation of physical stimuli and sensory perceptions
Structure of the human ear
Effects Of Noise On Humans

a) Auditory effects interfering with hearing; auditory fatigue and deafness.
b) Non-auditory effects interfering with social behaviour
c) Physiological effects affecting biological functions
d) Endocrine and hormonal changes relating to stress and noise levels. i.e. raised adrenaline and cholesterol.
e) Psychological effects; physical and mental fatigue, loss of concentration, lower efficiency……………..
Cardiovascular effects
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noise pollution and control in chemical industry


Posted by: srestha das
Created at: Friday 25th of February 2011 10:53:25 PM
Last Edited Or Replied at :Saturday 30th of April 2011 12:32:52 AM
noise pollution and control in chemical industry, noise , industry pollution, pollution management , pollution laws, pollution information , air and noise pollution, pollution control methods , sound pollution, forms of pollution , pollution water, control noise pollution , water pollution control, pollution , air pollution control, pollution control , control, chemical , industry, noise pollution and control in chemical industry , www infoaboutnoisepollution com, noise pollution , laws to control noise pollution seminar, noise pollution and law ,
This is srestha Das.
i need to find about noise pollution happening in a ..................[:=> Show Contents <=:]



NOISE POLLUTION AND CONTROL IN CHEMICAL INDUSTRY


Posted by: nishantjr
Created at: Wednesday 22nd of September 2010 06:37:35 AM
Last Edited Or Replied at :Thursday 30th of September 2010 10:09:06 AM
INDUSTRY, CHEMICAL , CONTROL, POLLUTION , NOISE, noise pollution and control in industries , noise pollution and control in chemical industry ppt, noise pollution and its chemical control , noise pollution in chemical industries and its control, control of noise pollution in textile industries , noise pollution industry pdf, noise pollution and control in chemical industry , seminar on sound pollution, noise pollution control in textile industry ppt , latest noise poolution its control pdf files, noise pollution its control pdf , industrial noise pollution pdf, ppt noise pollution pdf , engineering noise pollution control in industry pdf, seminar on noise pollution , seminar on pollution pdf, noise pollution ,
I am a student studying chemical engineering in thrissur government engineering college, kerala. I was very interested in the topic ' ..................[:=> Show Contents <=:]



NOISE POLLUTION AND ITS EFFECT ON URBAN AREAS presentation


Posted by: seminar presentation
Created at: Saturday 01st of May 2010 09:11:28 AM
Last Edited Or Replied at :Saturday 01st of May 2010 09:11:28 AM
presentation , AREAS, URBAN , EFFECT, POLLUTION , NOISE, noise pollution in urban areas , paper presentation on noise pollution, the impact of noise pollution in an urban area , civil paper download, download paper presentation in noise pollution , effects of noise pollution project, the simplest method of measuring noise pollution is by assessing linear sound pressure level over a broad frequency level ban , noise pollution ppt, sound pollution paper presentation pdf , pollution in urban areas ppt, seminar on sound pollution , urban area noise pollution, engineering pollution ppt , noise pollution ppt 2010, what are the causes of noise pollution in urban areas , sound pressure level noise pollution ppt, noise pollution ,
assessing linear sound pressure level over a broad frequency level band covering the whole of audible frequency band.
¢ Filtering networks are used to measure the sensation whose sensitivity varies as that of human ear.
¢ Widely used weighting network is ˜A™ weighing. They are represented as dB A.




Decibel

Decibel is widely used as measure of sound level. The ratio of the lowest sound power level to loudest power..................[:=> Show Contents <=:]



noise barriers full report


Posted by: project report tiger
Created at: Monday 15th of February 2010 02:06:39 AM
Last Edited Or Replied at :Monday 15th of February 2010 02:06:39 AM
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reduce traffic noise and that the benefits of barriers far outweigh the disadvantages of barriers. While noise barriers do not eliminate all highway traffic noise, they do reduce it substantially and improve the quality of life for people who live adjacent to busy highways.
The prototype noise barrier developed by R&D Centre for Iron and Steel (RDCIS), SAIL (Steel Authority of India Limited) Ranchi found to be effective by achieving a transmission loss of 25 dB in A-wtd scale. Also fiber glass“steel combination was found to be highly effective in the frequency range of 1000 Hz and fre..................[:=> Show Contents <=:]



NOISE POLLUTION AND CONTROL IN CHEMICAL INDUSTRY


Posted by: seminar projects crazy
Created at: Friday 30th of January 2009 01:00:49 PM
Last Edited Or Replied at :Friday 30th of January 2009 01:00:49 PM
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oise caused health hazards to the people, together with environmental pollution. Thus, every industry should take some measures to control the noise. Elimination of complete plant noise is not possible and is unnecessary. Only part of the noise that becomes excessive, needs control t..................[:=> Show Contents <=:]



AUTOMOBILE POLLUTION


Posted by: seminar projects crazy
Created at: Friday 30th of January 2009 12:43:19 PM
Last Edited Or Replied at :Friday 30th of January 2009 12:43:19 PM
global environmental problems pollution global, pollution games , air pollution graph, pollution global warming , pollution graphs, national pollution discharge elimination system , pollution disasters, pollution degree , water pollution definition, pollution data , pollution diseases, air pollution definition , pollution de lair, pollution de leau , pollution definition, noise pollution band , why is pollution bad, pollution by state , pollution by vehicles, pollution beijing , pollution by industries, pollution by cars , poll, pollution automobile pdf ,
ions into reasonable extent. In this report various types of emission control devices used in modern vehicles are described. The major causes of air pollution are automobile pollution. This badly affects the health of human beings. It has been linked to asthma, emphysema, cardio vascular diseases and lung cancer. It also has harmful effects on the environments. When men come to know about the harmful effects of air pollution he started thinking about air pollution control devices and he became successful in inventing some devices which reduced the pollution up to certain limit. There are certa..................[:=> Show Contents <=:]



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