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A reduced order dynamic model for an activated sludge process performing carbonaceous removal, nitrification, and denitrification is proposed. Based on directly measurable real time data - by methods available today - all model parameters are identified on-line. A simplified extended Kalman filter is used for the actual identification. Verification of the results is based on computer simulations o

Measurements of the radiation from a dipole lambda/2-dipole antenna inside a common car was compared to calculations at 1.9 GHz, to establish a principal knowledge of the radiation mechanism related to a vehicle such as a car. Based on this a new simple directional path loss model is proposed, that uses minimal knowledge of the vehicle's geometry. This model may be well suited for simulations of m

Until 4 decades ago, the rates of stroke in low- and middle-income countries were considerably lower than those in more economically robust countries. In the intervening years, however, the rates of stroke in places such as southern India and rural South Africa have approximately doubled, whereas stroke rates in more economically developed nations have decreased. What is far more striking is that

This thesis treats two separate but connected themes. This affiliation originates in optimization being the common choice of method for solving most of the occurring challenges. The first theme of the thesis is image segmentation. This is usually defined as the task of distinguishing objects from background in unseen images. This visual grouping process is typically based on low-level cues suc

While concurring with the new streams of literature in geography that highlight the importance of face-to-face and buzz in the globalizing learning economy, the article argues that this literature is misleading on three interrelated accounts. Firstly, it conflates face-to-face and buzz; secondly, it fails to distinguish between the importance of face-to-face and buzz for industries drawing on diff

The pig is becoming an increasingly used non-primate model in experimental studies of human retinal diseases and disorders. The anatomy, size, and vasculature of the porcine eye and retina closely resemble the human counterparts, which allows for application of standard instrumentation and diagnostics used in the clinic. Despite the many reports demonstrating immunohistochemistry as a useful metho

Successful tissue engineering with the aid of a polymer scaffold offers the possibility to produce a larger construct and to mould the shape after the defect. We investigated the use of cryogelation to form protein-based scaffolds through different types of formation mechanisms; enzymatic crosslinking, chemical crosslinking, and non-covalent interactions. Casein was found to best suited for enzyma

Discusses how a series of artefacts became important for cultural processes in a Swedish IT company during a turbulent period in business - a period that was known as "the new economy".

The number of scholarly blogs on the Web is increasing. In this article, a group of researchers are asked to describe the functions that their blogs serve for them as researchers. The results show that their blogging is motivated by the possibility to share knowledge, that the blog aids creativity, and that it provides a feeling of being connected in their work as researchers. In particular, the b

Bolin K, Berggren F, Forsgren L. Lacosamide as treatment of epileptic seizures - cost utility results for Sweden. Acta Neurol Scand: DOI: 10.1111/j.1600-0404.2009.01320.x. (c) 2010 The Authors Journal compilation (c) 2010 Blackwell Munksgaard. Objectives - To calculate cost per additional quality-adjusted life-year (QALY) for lacosamide as adjunctive treatment for patients with uncontrolled partia

We study System Optimum Dynamic Traffic Assignment (SO-DTA) for realistic traffic dynamics controlled by variable speed limits, ramp metering, and routing controls. We consider continuous-time cell-based Dynamic Network Loading models that include as special cases the Cell Transmission Model (CTM) with FIFO rule at the diverge junctions as well as non-FIFO diverge rules. While a straightforward co

Massive multiple input multiple output (MIMO) is a revolutionary communication technique, where large numbers of antennas are employed at the base stations to increase the spectral efficiency, reliability and data rate of the system. Moreover, in multi-user MIMO (MU-MIMO) multiple users can be served by the base stations on the same time-frequency resource. Distributed antenna system (DAS) is a fo

Emergency decision makers face a challenge taking rapid and high-risk decisions during an emergency situation, especially when the emergency is cross-border and requires multi-agency cooperation. The emergency decision makers use emergency management (EM) system and sometimes decision support systems (DSS) when responding to a crisis. To date the emergency decision makers have not had access to a

PalCom is a pervasive middleware that can be used to assemble services provided by networked devices into configurations, called assemblies, for specific use cases by the user. In this dissertation, we present the development of a networking media abstraction framework for PalCom that abstracts different network interfaces in a PalCom device to upper layers of PalCom. The media abstraction framewo

Breast cancer is the most common cancer among women worldwide, although the mortality rates have decreased in the last decades. Breast cancer is a heterogeneous disease, and treatment resistance is a significant clinical problem in spite of the overall high survival rates. Improved screening programs, novel surgical techniques, and adjuvant treatments have contributed to the improved survival,