Search results

The focus of attention in this article is that of milieux as forges for creativity and renewal. Among the milieux presented are places, corporations and research institutions. The renewal discussed here includes art, architecture, music and literature as well as science and technology. The goal of this article is to identify characteristics of importance in environments where exceptionally creativ

In this paper projective normalization and projective invariants of planar curves are discussed. It is shown that there exists continuous affine invariants. It is shown that many curves can be projected arbitrarily close to a circle in a strengthened Hausdorff metric. This does not infer any limitations on projective invariants, but it is clear that projective normalization by maximizing compactne

The study of life in confined extreme environments to give guidance for issues and conditions for the design, development and production of objects on Earth. We use long term living in confined extreme environments as starting point for studies of product development concerning objects and living environments. By using the extreme environment as a backdrop for our studies we aim to achieve a labor

This chapter presents a brief review of studies on swirling and non-swirling impinging jets. Also, a numerical investigation of heat transfer from impinging swirling jets is described. Various turbulence models are used. Comparison with experimental data is provided. Generally, the V2f model was found to perform better than other models, but for small nozzle-to-plate distances, it was hard to main

In our article, we start by posing the question why some adjectival stems can end both in -ful and -less, while others take only one of the endings. Together these items make up around 1% of the entries in a good dictionary. It soon becomes clear that we need to use several basic concepts from cognitive linguistics to answer our question: boundedness, mass vs. individual, part-whole relations and

A numerical investigation has been carried Out for the turbulent fluid flow and heat transfer in periodic fully developed corrugated ducts. Three turbulence models are used in the calculation: the standard k - epsilon model, the Re-Normalized Group (RNG) k - epsilon model and a Reynolds Stress Model (RSM). The turbulent heat flux is modeled by the simple eddy diffusivity model (SED). The numerical

The two major purposes of the interleaver in a turbo coding scheme are, firstly, to improve the weight distribution of the turbo code, and, secondly, to make the performance of iterative decoding as close to maximum likelihood as possible. Both these purposes should be considered when ranking and designing interleavers for turbo codes. In lack of a measure of how well the second purpose is carried

This report is an evaluation of human safety and evacuation possibilities in case of a fire at Bräcke ice hockey arena, Sweden. Three fire scenarios have been analyzed and the modeling of these has been done by computer simulations and hand calculations. The time until the fire has reached critical conditions in the building was then compared with the time it takes for all the persons in the build

The purpose of this study is to gain a deeper understanding about the consumption of contemporary charity in Western society on the example of the Swedish breast cancer charity Rosa Bandet. The study reveals exciting nuances of contemporary charity consumption, among them the glamourisation and disarming of cancer, the commercialisation and merchandisation of charitable giving, the changing role o

Background: Somali piracy and armed robbery against ships remain to be one of the major global concerns today. Since 2007, over 1,500 piracy and piratical attacks were reported to the IMB Piracy Reporting Centre. These figures were gradually increased over the years, along with the degree of maritime violence. Somali pirates, with the urge of ransom payments, have consequently become more threate

This thesis aims to investigate the accuracy of Value-at-Risk and Expected Shortfall forecasts of various GARCH-type models based on five currency exchange rate pairs. The GARCH models are employed under different conditional distributional assumptions, and extended using the two-stage Extreme Value Theory (EVT) approach of McNeil and Frey (2000). The forecasts are evaluated through simulation usi

Euler diagrams are common and user-friendly visualizations for set relationships. Most Euler diagrams use circles, but circles do not always yield accurate diagrams. A promising alternative is ellipses, which, in theory, enable accurate diagrams for a wider range of input. Elliptical diagrams, however, have not yet been implemented for more than three sets or three-set diagrams where there are dis