The aim of this work was to develop a textile fabric with electrical conductivity. This fabric was made from cotton yarns coated with a solution based on carbon black. This paper reports the results of preparing different recipes using a number of quantities of carbon black particles and other components of the coating mixture, which were tested in order to obtain the best results regarding electrical conductivity. The optimal concentration of conductive particles of carbon black was studied.
PL
Wyprodukowano tkaniny o dobrej przewodności elektrycznej, z włókien bawełnianych o splocie płóciennym, pokrytych roztworem zawierającym cząsteczki sadzy. Przedstawiono wyniki przewodności elektrycznej uzyskane przy stosowaniu roztworów o rożnym składzie i rożnym stężeniu cząstek sadzy. Określono optymalny skład i stężenie cząstek sadzy dla uzyskania praktycznych wyników.
Mobile Cloud Networks group together mobile users and clouds containing content servers. Hence, they are an ideal framework for media content delivery. Streamswitching adaptive video players cope well with some limitations of Mobile Cloud Networks as low bandwidth and bandwidth variability in access network. Nonetheless, other limitations, as cloud congestion, are difficult to be managed by the video players. This paper presents a system for discovering fault situations at the cloud (e.g., cloud congestion) and notifying to the video player, which will take appropriate actions for saving the quality of media transmission. In proposed implementation the video application is DASH-capable and adaptation action may be both stream rate adaptation and content server adaptation. The communication between client and server uses "bidirectional" communication feature of HTTP/2 thanks to the new deployed modules running DASH over HTTP/2 in both client's and server's applications.
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