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Flexible Composites - Strength, Deformation and Fracture Proecesses in Woven and D.O.S. Reinforcement Materials

Popular Abstract in Swedish Teknisk textil är en bred benämning för textila material med användningsområden som inte är beklädnad eller där utseendemässiga krav oftast är av underordnad betydelse. På senare tid har dock designsynpunkter på tekniska textilprodukter kommit att alltmer uppmärksammas och detta belyses i kapitel 10 i avhandlingen. Teknisk textil är en nygammal industrigren som genomgåtIn this thesis the tensile strength, deformation, damage resistance and tear propagation for flexible composites are analysed. There are two essential requirements common to all flexible composites; namely, high tearing strength and good matrix-to-fabric adhesion. The interaction of fabric and matrix is complex. The most critical variables are those of yarn and fabric structure, the mechanical pro

Vasodilator actions of EDHF and anandamide

Popular Abstract in Swedish Det innersta cellagret i blodkärl (endotelet) kan frisätta både kontraktila (kärlsammandragande) och relaxerande (kärlvidgande) faktorer. När receptorer på endotelet stimuleras med till exempel acetylkolin så frisätts relaxerande faktorer. Dessa faktorer verkar vara åtminstone tre till antalet och två av dessa har identifierats som kväveoxid och prostacyclin. Den tredjeVasodilator responses to endothelium-derived hyperpolarizing factor (EDHF) and anandamide in isolated arteries were investigated. A combination of the potassium channel blockers charybdotoxin and apamin inhibits EDHF-mediated relaxations. Experiments in which charybdotoxin or apamin was substituted with other potassium channel inhibitors indicated that small- and intermediate-conductance calcium-a

Ars moriendi i kampen om det goda samhället

This article deals with the view on death and cure of dying persons in Scandinavia from the middle of the 19th century up to the present. In this period, there is a change from a Christian understanding of death as a transition to eternal life to the present, secularised attitude. This development was, however, not clear-cut. There was a trend towards secularisation but at the same time, there wer

Multiple window decomposition of time-frequency kernels using a penalty function for suppressed sidelobes

This paper presents multiple windows with suppressed side-lobes that approximate a time-frequency kernel. The multiple windows are given from the eigenvalue decomposition of the time-lag kernel. By using a penalty matrix both in time- and frequency domain and solving a generalized eigenvalue problem, the multiple windows are achieved. Examples are given and the resulting sidelobe suppression and t

Working with and Working on Corporate Social Responsibility: The Flexibility of a Management Concept

Why do some corporations become positioned as socially responsible and others as socially irresponsible? Here, an attempt is made to explore this issue. Within the established management literature it is held that managers do not understand corporate social responsibility (CSR), wherein the focus has been turned towards how corporations can work with CSR inside their organisation as a response to

Adsorption of Molecules on Metal Surfaces Studied by High Resolution Core Level Photoemission

Various aspects of the adsorption of molecules on metal surfaces have been studied making use of different properties of high resolution core level photoemission. A thorough investigation has been performed of the ordering and the site occupancy of CO overlayers on Rh(111). CO has been shown to adsorb in on-top and three-fold-hollow sites. The distribution of the molecules between these two sites