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Contextual and conceptual ambiguities in supervision of artistic research : experiences from Konstnärliga forskarskolan

To accept the nomination to become the supervisor of a PhD candidate is not only to step into a specific, challenging and potentially rewarding relationship, but also to enter a new zone of uncertainty: what kind of contribution to this relationship is expected from me? In what ways is this new professional task framed and supported by the institutional context to which I belong? What do I gain fr

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The article deals with the elections of 21 Sep 2013 in Southern (Iraqi) Kurdistan and the efforts to build a new government. Many scenarios how to create the new cabinet are as well discussed.

A conceptual study of OFDM-based multiple access schemes: Part 2 - Channel estimation in the uplink

This paper deals with the design of channel estimators in the uplink of an OFDM based multi-user system. First, we propose a user allocation scheme that is based on the aim to use the correlation of the radio channel for channel estimation purposes. Further, we present the linear MMSE channel estimator based on a few pilot tones. We present an error analysis that proves valuable in the evaluation

Improved Models for DC-DC Converters

To obtain high performance control of a dc-dc converter, a good model of the converter is needed. It is suitable to consider the load to be included in the converter model since it usually affects the dynamics. The load is often the most variable part of this system. If the load current and the output voltage are measured there are good possibilities to obtain a good model of the load on-line. Ada