16 resultados para Coherent noise attenuation
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Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.
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Every single day millions of European workers are exposed to noise at work. One in five of European’s workers have to raise his voice to be heard for at least half of the time that there are at work and 7% suffer from work-related hearing impairment. In Europe noise-induced hearing loss is the most common reported occupational disease. This paper deals with issues related with noise management at work, especially regarding the compliance with the new noise European Directive, (2003/10/EC).
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Physics Letters A, vol. 372; Issue 7
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Signal Processing, vol. 86, nº 10
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Electronics Letters Vol.38, nº 19
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IEEE International Symposium on Circuits and Systems, MAY 25-28, 2003, Bangkok, Thailand. (ISI Web of Science)
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IEEE International Symposium on Circuits and Systems, pp. 232 – 235, Seattle, EUA
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Proceedings of IEEE, ISCAS 2003, Vol.I, pp. 877-880
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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para a obtenção do grau de Mestre em Engenharia Electrotécnica e de Computadores
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Proceedings Institute of Acoustics (UK); vol. 25, nº2, p. 72-78.
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As surveys about time allocation among couples are extremely expensive, one way of reducing costs could be to query only one member of the coupler with the same set of questions about him/her and about his/her partner. In this paper we show that after carrying out a survey in this way, the responses given by one partner do not always fit the same econometric model as those obtained from the other.
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Dissertação para obtenção do Grau de Mestre em Engenharia Eletrotécnica e de Computadores
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Dissertação para obtenção do Grau de Mestre em Engenharia Civil – Perfil de Estruturas
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A PhD Dissertation, presented as part of the requirements for the Degree of Doctor of Philosophy from the NOVA - School of Business and Economics
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The main purpose of this Work Project consists in performing a practical Cost-Benefit Analysis from a social perspective of two noise reduction projects in industrial sites that aim at complying with the existing regulation. By doing so, one may expect a more comprehensive view of the benefits and costs of both projects, as well as relevant insight to the way noise exposure regulation must be optimally defined in Portugal and within the EU area.