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A general mixed initial-boundary value problem for a non-local hyperbolic equation, relevant for the study of the propagation of transient electro-magnetic waves in flat slabs, consisting of dispersive stratified complex media, and excited by incident plane waves, is treated. Theorems regarding unique solvability and causality are presented and proved by a time domain method similar to the one use

We present the first results of an experiment which is aimed at ultimately producing recommendations for analysing archaeologic ceramics specimens using hand held XRF analysis devices. In the experiment we study the effects of different measurement durations, different number of measured points, and three different types of surface treatments (breakage, polished, grounded) when analysing ceramics

Organizational ambidexterity has emerged as a research area promoting innovation for both short- and long- term success. Structural ambidexterity proposes dual structures and strategies to differentiate efforts, focusing on one or the other form of innovation. In contrast, contextual ambidexterity relies on behavioral and social means to integrate exploitation and exploration. In this article we h

With recent advances in wireless technologies, wireless LANs are becoming increasingly widespread as an alternative to fixed access technologies. The IEEE 802.11 standard has gained the most popularity among the different standards and is currently being deployed both within enterprises as well as being used for public access. One of the weaknesses of the basic medium access in the 802.11 standard

Based on results from psycholinguistic and neuro- linguistic research on the perception of word ac- cents in Central Swedish, we argue that Accent 2 could be seen as “marked,” as opposed to the un- marked Accent 1. The markedness of Accent 2 is assumed to be both phonetic, due to its relatively more complex high tone, and cognitive, due to the fact that the Accent 2 tone activates more word forms

‘Virtual imagery as evidence in the contemporary context of the war on terror’ This paper explores the evidentiary role of virtual reproductions produced by the research project Forensic Architecture in the context of the contemporary battlefields of the war on terror. The digitization of war has created a networked landscape whose processes often remain invisible to the public. Although drone op

Understanding fluid flow through rocks is of key interest in hydrocarbon production and CO(2) sequestration, amongst other applications. Such fluid injection or extraction from subsurface reservoirs can be significantly modified (increased or decreased) by deformation and in particular by localised deformation features (fractures, shear bands and compaction bands). How such deformation alters flui