Titlebook: Acoustics and Vibration of Mechanical Structures—AVMS-2017; Proceedings of the 1 Nicolae Herisanu,Vasile Marinca Conference proceedings 201

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https://doi.org/10.1007/978-3-662-68151-0udy was carried out on a sample of 60 manual workers who were exposed to a noise level between 70 and 90?dB; the control group involved 60 administration workers, where noise levels did not exceed 55?dB. Noise levels were measured with a fonometer (Benetech GM 1351), which registers noise levels bet

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Diskrete Fourier-Transformationrom problems caused by workplace exposure to high levels of noise or vibration. The issue concerning exposure of workers to physical hazards also affects employers from the economic point of view, generating a significant decrease in working capacity. Low efficiency caused by exhaustion and overwork

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Differentialgleichungen zweiter Ordnungater noise. It requires a harmonized methodological framework for data collection, field simulation of evolution acoustic characteristics for the modeling and plotting maps of underwater noise. This paper comes to make a contribution on procedures for measuring the characteristics of underwater acou

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Vektorr?ume, Skalarprodukte und BasenThis paper presents the fundamental aspects of the theory of Fractional Calculus. Several approximation methods for the calculation of fractional-order derivatives are discussed. The application of Fractional Calculus in automatic control systems and their main properties are also analyzed.

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