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How are longings for intimacy engendered in different ways in relation to technology use? How can alternative uses of consumer electronics make us more aware about the conditions for mediation and technology use? The presentation will reflect on a specific consumer electronics product called the Intenso Viddy, which is a cheap video messenger marketed as a lifestyle/mobility-gadget. With it’s inco

This paper presents a methodology to reduce the power consumption, silicon area, as well as increasing the performance, in digital filters that are feasible for wireless communication circuitries. The method is based on arithmetic reductions in a wave digital filter. Basically, the multipliers are removed to reduce the number of arithmetic operations. All parameters including the dynamic and stati

In this paper a modification of a recently proposed model simplification method for linear time invariant parameterized models is presented. It is able to obtain models with explicit parameter dependence. The method is based on convex optimization with semidefinite constraints. Computation of the reduced model requires only the frequency samples of the full one, hence it is possible to apply the m

This thesis consists of five parts, each of which considers methods based on filter banks for different applications in signal and image processing. In Part I, a non-parametric estimation method is proposed using filter banks to estimate signals with varying waveforms and arrival times. This method, which provides a linear, robust estimate of the signal, is based on a series expansion by a set of

Wave propagators are introduced for transient wave propagation in a general one-dimensional medium. The definition of wave propagators is based upon a wave splitting technique. Several properties for the propagators are given and the relations between the method of propagators and the invariant imbedding method and the Green function approach are discussed.

Cloud computing is an application hosting model providing the illusion of infinite computing power. However, even the largest datacenters have finite computing capacity, thus cloud infrastructures have experienced overload due to overbooking or transient failures. The topic of this paper is the comparison of different control strategies to mitigate overload for datacenters, that assume that the r

Basic tools to solve an inverse scattering problem for anisotropic media are developed. A transient electromagnetic field impinges upon a slab of anisotropic dispersive medium. The scattering kernels map the incident field to the scattered fields. The inverse scattering problem is to reconstruct the components of the matrix susceptibility kernel from knowledge of the scattering kernels. The method

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Adaptive techniques such as gain scheduling, automatic tuning and continuous adaptation have been used in industrial single-loop controllers for about ten years. This paper gives a survey of the different adaptive techniques, the underlying process models and control designs. The paper ends with an overview of industrial adaptive single-loop controllers.