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The growing use of underground cables in distribution systems increases the capacitive coupling of the network to earth and as a consequence the capacitive earth fault current. In rural systems consisting of long cable feeders the extensive reactive current transportation gives rise to resistive losses that influence the earth fault protection. Simulations carried out in this work suggest the resi
Popular Abstract in Swedish En tredjedel av befolkningen i världens industrialiserade länder lider av allergi, t.ex. allergisk rinit (hösnuva). Trots detta vet man relativt lite om de cellulära och molekylära mekanismer som ligger till grund för det immunologiska svaret vid allergi. Genom att studera dessa mekanismer kan man hitta sätt att angripa dem, vilket förhoppningsvis kan leda till bättre lAllergic diseases currently affect a third of the population in the industrialized parts of the world. Despite this, the cellular and molecular mechanisms involved in the induction and activation of allergic diseases are not fully clarified. Dendritic cells (DCs) link the innate and adaptive immunity and play vital roles in protective immunity against pathogens, as well as in inducing tolerance t
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The dramatic increase in demand for wireless Internet access has lead to the introduction of new wireless architectures and systems including 3G, Wi-Fi and WiMAX. 3G systems such as UMTS and CDMA2000 are leaning towards an all-IP architecture for transporting IP multimedia services, mainly due to its scalability and promising capability of inter-working heterogeneous wireless access networks. Duri
This paper presents a novel application which implements a way of adding sound breadcrumbs to the environment. We report results from initial user tests which suggest that this type of design could be useful for a wide range of mobile location based applications.
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In this paper simulations of a 130-nm CMOS 24-GHz automotive radar transmitter with digital beam steering is presented. The beam steering is performed by multiple PAs connected to separate antenna elements. The output phases of the PAs are individually controllable through 360◦ by binary weighting of quadrature phases. The circuit contains 18 PAs, each delivering 0 dBm to the antenna, resulting in
