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List of Documents - (Netword *GVM)

GVM - DVL Notes
00-11-10: LF NOISE PROPAGATION UNDER INVERSION LAYER CONDITIONS
00-11-10: IMPACT OF LF NOISE ON HUMANS - SUMMARY
00-11-10: DownLoad Microsoft Word Documents - ZIP file
00-11-11: Notes on the use of the LFNR curves
 

PAPERS PRESENTED AT INTERNOISE '98 :
Sound Exposure Measurements in the Cases of Low Frequency Noise Complaints
Distant Transformer Noise - 'Tone' sound level variations of 20 dB
Case Control Study in Low Frequency Sound Measurements
Assessment of Low Frequency Noise Complaints
 

SOUND PROPAGATION AND NOISE IMPACT
METEOROLOGICAL EFFECTS ON SOUND PROPAGATION: Uppsala University - Errors of the order of 20 dBA could be introduced if weather is not taken into account.
Distant Transformer Noise: Tone' sound level variations of 20 dB measured at a distances of a few kilometres.
AcousticModelingRoadBarriers: The downward refracting sound speed profile..in such conditions sound rays curve back down towards the ground (hence the term downward refracting)...has the adverse effect of keeping most of the sound energy emitted from the source near the ground....
FUNDAMENTALS OF SOUND - University of Western Australia:  Note: Very low frequencies, subsonic or Infrasound, can be produced in buildings by long air-conditioning ducts and wind effects. Subsonic sounds generally act on the inner ear, the position-sensing organ, and significant levels may cause disorientation, seasickness, digestive disorders, troubled sight and dizziness. Frequencies of between 1 and 8Hz can correspond to resonant frequencies within the body itself, 8Hz being thought to cause circulatory resonance phenomena, overloading the heart or bursting blood vessels. 7Hz also seems particularly unpleasant as it has been shown to cause tiredness, headache and nausea. It is suggested that 7 Hz corresponds to the median frequency of the brain's 'alpha' waves.
 

APOLLO "DC" COOLING FAN NOISE
PROPOSED SHELL ULTRA STATION - (Netword *R21)
 

GENERAL
Threshold of Hearing Curves
Warren Blazier's RC curves - Example: LF noise at Salbu together with comments
 
 
 

 


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