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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
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In this paper a new wave splitting is suggested that simplifies the analysis of wave propagation in reciprocal bi-isotropic media. Two different methods to solve the scattering problem are analyzed; the invariant imbedding and the Green function approach. The medium is modeled by constitutive relations in the time domain (time convolutions) and the slab is assumed to be inhomogeneous with respect