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A feedback-based scheme for cooperative content distribu- tion for mobile systems aimed at reducing energy and li- censed spectrum usage is presented. The paper is motivated by the problems in implementing peer-to-peer based content distribution in mobile networks due to the risks of unfair en- ergy expenditure. A technique for incentivizing cooperation and for enforcing agreements between peers i
This note proposes a unified approach to analyse linear time-invariant consensus problems via the use of integral quadratic constraints (IQCs) without recourse to loop transformations, which may cloud the inherent structural properties of the multi-agent networked systems. The main technical hindrance to using IQCs lies in the presence of the marginally stable integral action in consensus setups.
In operating systems, resource managers are developed according to simplicity, low overhead, low memory footprint, extensibility and efficiency. Thread schedulers are designed and developed following these implementation-related guidelines. The performance of the implementation is then tested over a set of benchmarks. However, the ability to provide real-time guarantees of these policies is rarely
Popular Abstract in Swedish Avhandlingen behandlar den svenska författarinnan Marika Stiernstedts drama Attentatet och regissören Alf Sjöbergs uppsättning av det på Dramaten 1944. Produktionsprocessen följs från dramats tillkomst till uppsättningens möte med publiken. Avhandlingen undersöker vad dramat och uppsättningen berättar om tidens oro och om politiska och etiska motsättningar. Fokus liggerThe thesis deals with the Swedish author Marika Stiernstedt's drama The Outrage and Alf Sjöberg's production of it at the Royal Dramatic Theatre in 1944. The production process is followed from the birth of the drama to the production's encounter with the audience. The thesis examines what the drama and the production tell about the unrest of those times and about political and ethical antagonisms
Choice blindness is a cognitive phenomenon describing that when people receive false feedback about a choice they just made, they often accept the outcome as their own. Little is known about what predisposes people to correct manipulations they are subjected to in choice blindness studies. In this study, 118 participants answered a political attitude survey and were then asked to explain some of t
This paper presents a method for translation of Java bytecode sequences into synthesizable hardware, using the Bluespec System Verilog (BSV) environment. At the core of our approach lies a BSV description of a subset of Java bytecodes, that can be used to directly translate bytecode sequences into a BSV specification. The result is intended as an accelerator for existing Java processors (JOP, Blue
A calibration model was developed for a non-invasive blood glucose sensor, to determine how the blood glucose data measured by this sensor is related to blood glucose data measured with laboratory capillary finger sticks and to corrupting noise. The variability of calibration models for different patients was analyzed as well as the dynamics of the non-invasive blood glucose sensor according to re
Context: The questions of how many individuals and how much time to use for a single testing task are critical in software verification and validation. In software review and usability evaluation contexts, positive effects of using multiple individuals for a task have been found, but software testing has not been studied from this viewpoint. Objective: We study how adding individuals and imposing
We introduce a new multi-region model for simultaneous segmentation of the left and right ventricles, myocardium and the left ventricular papillary muscles in MRI. The model enforces geometric constraints such as inclusion and exclusion between the regions, which makes it possible to correctly segment different regions even though the intensity distributions are identical. We efficiently optimize
International water resources agreements for transboundary rivers in southern Africa are generally founded in system analysis models for water planning and allocation. The Water Resources Yield Model (WRYM) developed in South Africa has so far been the only model applied in official joint water resources studies aimed to form water-sharing agreements. The continuous discussion around the model per
The aim of this dissertation is to examine the institutional changes which occurred in Chile under the military regime from 1973-1981, and how these changes can be related to subsequent economic development in the country. The empirical material comprises of an investigation of the new economic policy in the agricultural sector, the political process behind this policy and the social and economic
This contribution presents a novel offline dynamic multi-objective optimization framework for high-pressure liquid chromatographic (HPLC) processes in batch elution mode. The framework allows for optimization of general elution trajectories parametrized with piecewise constant control signals. It is based on a simultaneous method where both the control and state variables are fully discretized in
Popular Abstract in Swedish Torgny Segerstedt, den kände chefredaktören för Göteborgs Handels- och Sjöfartstidning, hade utkämpat strider före nazismens tid. Som ung kallades han till docent till Lund på en underkänd avhandling. Disputationen hade ägt rum i maj 1903 vid den teologiska fakulteten i Uppsala. Efter underkännandet beslöt alltså den teologiska fakulteten i Lund att kalla Segerstedt tilOn 1st September 1903, the Faculty of Theology at the University of Lund took the decision to appoint Torgny Segerstedt as a senior lecturer in spite of his failed doctoral dissertation. The public defence of his thesis had taken place on 28th May in the same year before the Faculty of Theology at Uppsala. It was thus after his failure that the Faculty at Lund nevertheless decided to invite him to
Objective This study provides the summary of current knowledge about migrant work in agriculture available from journal articles, books, reports and other relevant academic publications, focusing on political, economic, legal, social and medical aspects of migrant work in agriculture. Methods A systematic search was carried out on the LibHub and Google Scholar databases in order to compile the e
Bytecode folding is an effective technique for speeding up execution in Java virtual machines. This paper investigates a hardware implementation of the aforementioned technique on BlueJEP, a Java embedded processor. Since BlueJEP is a micro-programmed stack machine, we adopt a micro-instruction oriented approach, folding up to four microinstructions (corresponding to up to four bytecodes, on occas
