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It is argued that we live in a post-industrial society with a transition from the production of goods to services. It is also said we live in a knowledge economy where creation, distribution, use and manipulation of information are significant activities (Dahlbom, 2003). The word industrial has a connotation of mass-production of products and, logically also industrial design has this connotation.
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The Empirical Mode Decomposition (EMD) is a method to decompose non linear, non stationary time series into a sum of different modes, named Intrinsical Mode Functions each one having a characteristic frequency. In the present work we used the EMD to investigate the properties of the recorded sounds from the Arteriovenous fistula on hemodialysis patients. Phonoangiographic signals coming from two d