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A modularized approach to modeling of harmonics in electrical distribution networks at steady state is presented. It is based on harmonic balance and exploits that the loads in a distribution network are connected in parallel in such a way that their operating conditions are approximately known in advance (e.g. 230 V, 50 Hz) and the harmonic distortion of the voltage is limited. The model for a co
We give closed-form expressions for H-infinity optimal state feedback laws applicable to linear time-invariant discrete time systems with symmetric and Schur state matrix. This class includes networked systems with local dynamics in each node and control action along each edge. Furthermore, the structure of the controllers mimics that of the system, which makes them suitable for distributed contro
This dissertation offers a theorisation of the ways in which the intellectual function is performed through various subject positions. In the thesis, a post-Marxist approach to discourse theory is used to address questions of discursive shifts, hegemony and the intellectual function. It is supplemented by a rhetorical political analysis in order to examine how practices and strategies involved in
Apprenticeship training is a form of education that arouses a great deal of interest as regards the challenges that characterise conditions for young people on the current labour market. This is obvious both in Sweden and in other comparable countries. This chapter begin by illustrating the changed conditions for establishment of young people, a factor that may help to enhance understanding of whyApprenticeship training is a form of education that arouses a great deal of interest as regards the challenges that characterise conditions for young people on the current labour market. This is obvious both in Sweden and in other comparable countries. This chapter begin by illustrating the changed conditions for establishment of young people, a factor that may help to enhance understanding of why
Hydropower is a renewable energy that expected to be affected by persistent climate change in Mozambique. Variability of climate e.g. temperature and precipitation will contributors to future shortage of energy from renewable energy production especially for hydropower and biomass. This research reviews the impacts of climate change on the productions of hydropower in Mozambique. Furthermore, a st
Open access has established itself as an issue that researchers, universities, and various infrastructure providers, such as libraries and academic publishers, have to relate to. Commonly policies requiring open access are framed as expanding access to information and hence as being part of a democratization of society and knowledge production processes. However, there are also other aspects that
Pulmonary hypertension due to lung diseases In 2015 the European Society of Cardiology and European Respiratory Society published new guidelines on the diagnosis and treatment of pulmonary hypertension (PH). PH due to lung diseases and/or hypoxia was classified as a separate entity. PH is common in lung diseases, but seldom severe. Nevertheless, the presence of PH in a patient with lung disease is
We introduce successive cancellation (SC) decoding of product codes (PCs) with single parity-check (SPC) component codes. Recursive formulas are derived, which resemble the SC decoding algorithm of polar codes. We analyze the error probability of SPC-PCs over the binary erasure channel under SC decoding. A bridge with the analysis of PCs introduced by Elias in 1954 is also established. Furthermore
