Noise Control Principles And Practice - gillg.tk

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safety engineering like any applied science is based upon fundamental principles and rules of practice safety engineering involves the a identification b evaluation and c control of hazards in man machine systems products machines equipment or facilities that contain a potential to cause injury to people or damage to property, control of dust and noise exposure during direct pressure - 1 noise assessment has been completed as required by the noise at work regulations 1989 nawr reg 4 and that possible noise exposure resulting from the use of communication headsets is included and such exposure is adequately controlled, quantization signal processing wikipedia - mathematical properties because quantization is a many to few mapping it is an inherently non linear and irreversible process i e because the same output value is shared by multiple input values it is impossible in general to recover the exact input value when given only the output value the set of possible input values may be infinitely large and may possibly be continuous and, identify assess and control hazards safe work australia - 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