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Development of a Framework for Quality Assurance of Performance-based Fire Safety Designs

In this paper, some fundamental problems concerning the verification of fire safety engineering designs based on performance-based building regulations are discussed. It can be questioned if the approach taken by many practitioners today is sufficient to fulfil the requirements laid out in the building code, i.e. society’s demand for fire safety. Examples of this deficiency are that interdependenc

Transgressing the boarders of textile art

Swedish textile art is often described as highly successful and as part of an appreciated tradition. But there are some interesting points to be made from looking at the subject as an Art Historian with a gender- and genre-perspective. First of all the textile material is closely linked to notions of femininity. The textile material is also persistently placed within the craft sphere. Secondly, th

A Grassmanian approach to the Hankel norm approximation problem

This paper concerns the unifying framework to strictly contractive extension problems, which is usually referred to as the band method. The solution to the so-called strictly contractive extension problem in this abstract framework, when applied to a certain concrete case, yields a complete characterization of solutions to the sub-optimal Nehari problem. The sub-optimal Hankel norm approximation p

Array signal processing with non-ideal uniform circular arrays in correlated signal environments

The Davies transformation is a method to transform the steering vector of a uniform circular array (UCA) to one with Vandermonde form. As such, it allows techniques such as spatial smoothing for direction of arrival (DOA) estimation in a correlated signal environment, developed originally for uniform linear arrays, to be applied to UCAs. However, the Davies transformation can be highly sensitive t

Experimental Validation of the Brush Tire Model

The paper contains an experimental validation of the physically based brush-tire model toward the tire behavior in a number of different realistic conditions. Results of measurements performed with summer, winter, and studded tires on different road foundations such as wet and dry asphalt, basalt, snow, and ice are presented. The purpose behind the validation is to study the possibilities of using