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Indoor localization and navigation is a much researched and difficult problem. The best solutions, usually use expensive specialized equipment and/or prior calibration of some form. To the average person with smart or Internet-Of-Things devices, these solutions are not feasible, particularly in large scales. With hardware advancements making Ultra-Wideband devices more accurate and low powered, th
This paper analyzes how public transport planning is managed in institutional contexts where governance is spread across local and regional scales. The paper sheds light on two facets of the relationship between local and regional government: first, the decision-making process regarding where to provide public transport services and at what level, and second, integration of public transport with l
Popular AbstractI avhandlingen undersöks den ekonomiska omvandlingsprocess som skett i Sverige sedan mitten av 1970-talet. Av speciellt intresse är hur och varför de fördelar som företag och branscher åtnjuter på grund av samlokalisering med andra ekonomiska aktörer (så kallade agglomerationsexternaliteter) varierar över olika faser av ekonomisk omvandling. Avhandlingen baserar sig på de framsteg This thesis investigates the process of economic transformation taking place in Sweden since the mid 1970s. Especially, it is concerned with how and why benefits that firms and industries draw from regional co-location with other actors (agglomeration externalities) vary over stages of economic transformation. Drawing on recent findings within the fields of evolutionary economics and evolutionary
The more we know about the catastrophic implications of climate change, the more fossil fuels are burnt in the world. How did we get caught up in this mess? This thesis returns to a crucial moment in the emergence of the fossil economy: the rise of steam-power. With the adoption of the steam-engine, fossil energy was first coupled to a process of self-sustaining growth, the new prime mover using c
Popular Abstract in Swedish Transporter är viktiga för ett fungerande samhälle, men samtidigt innehåller avgaserna från en förbränningsmotor farliga utsläpp som förorenar vår miljö. Kan vi på något sätt hindra att miljön blir förstörd av farliga utsläpp genom förbättrad motordesign? Frågan om global uppvärmning har varit vid liv enda sedan IPCC (Intergovernmental Panel on Climate Change) grundadeThis thesis concerns a numerical investigation on heat transfer in internal combustion engines, with the aim of increasing engine efficiency. The efficiency gains are to be extracted from reduced heat transfer losses, by increasing the knowledge on how the heat transfer process is affected by various hardware and operational parameters in the engine. The engines concerned are both conventional die
That a load balancing strategy using stale information care lessly will incur system performance degradation is easy to verify. However it is not so obvious that routing a customer to the expected shortest queue has the same problem when information for decision is stale. We consider a queueing system with a load balancer and a pool of identical FCFS queues in parallel. The arrival process is assu
Popular Abstract in Swedish Potatis är ett av våra viktigaste baslivsmedel, men erbjuder trots det stor variation. Traditionella recept varvas med nya innovationer i hushåll och restauranger, och inom livsmedelsindustrin processas potatisen till en rad olika produkter. Från traditionell kokt potatis med sås inom husmanskosten har våra matvanor förändrats radikalt. Ökade krav på snabb och enkel tilThe potato is one of our most important food crops, being sold in its natural state or processed into a wide range of products. Starch, by far the most abundant component in the tuber, is greatly affected by heat processing. Therefore it is logical to study starch thermal properties within the tuber tissue, although most previous studies have focused on starch-water model systems. One of the main
Anthropogenic transformation of land globally is threatening water resources in terms of quality and availability. Managing water resources to ensure sustainable utilization is important for a semiarid country such as South Africa. Bayesian networks (BNs) are probabilistic graphical models that have been applied globally to a range of water resources management studies; however, there has been ver
Femoroacetabular impingement (FAI) syndrome is often treated with hip arthroscopy (HA) with the goal of enabling return to sport. While the number of HAs has been rising, little is known about the rehabilitation process or about outcomes related to return to sport (RTS) following the procedure. The overarching aim of this thesis wasto describe the rehabilitation process following HA in Scandinavia
This conceptual paper addresses how the emergent impact agenda is slowly but surely changing the normative framework of modern science. In order to understand such a cultural shift, we draw a chronology around the evaluation regime of research impact and identify a causal mechanism that changes the disciplinary structure of the research ecosystem. We draw upon a sociological model of scientific kn
The recent discovery that metal nanoparticles can generate hot carriers upon light excitation is seen as a breakthrough in the fields of plasmonics and photonics. However, the high expectations for a plasmonic revolution in applications have been dampened by the ultrafast energy dissipation of surface plasmon polariton modes. While research aimed at suppressing loss mechanisms is still pursued, an
In order to keep up with the constant demand for higher data rates, the fifth generation of mobile communication (5G) introduced the use of mm-wave carrier frequencies from 24 to 71 GHz. Plenty of new frequency spectrum then became available, which has allowed for channel bandwidths of several hundreds of MHz. 6G is projected to continue this trend with even higher carrier frequencies and wider ba
Building on the progress in Boolean satisfiability (SAT) solving over the last decades, maximum satisfiability (MaxSAT) has become a viable approach for solving NP-hard optimization problems. However, ensuring correctness of MaxSAT solvers has remained a considerable concern. For SAT, this is largely a solved problem thanks to the use of proof logging, meaning that solvers emit machine-verifiable
The manuscript focuses on an original method of preparation of metatitanic acid when only environmentally safe base substances are used in the synthesis process. The synthesis is based on the reaction of solid titanyl sulfate in an aqueous solution of sodium hydroxide. This method allows for (i) a full preservation of the morphology of the starting titanyl sulfate and (ii) a preparation of metatit
The memory of the Holocaust has become one of the most salient and fully-fledged transnational collective memories traveling around the world. Most of the scholarship tracing the transnational flows of Holocaust memory representations has focussed on literature, films, and other media products. This lecture, however, instead foregrounds the research on memory practices in specific geographic locat
Lead has traditionally been added to brass alloys to achieve high machinability, but the exact mechanisms at work are still debated. Lead-free brass alternatives could be developed if these mechanisms were better understood. Accordingly, machinability characteristics were investigated for two brass alloys with similar mechanical properties and phase composition, but with very different machining c
The increasing demand for software project managers in industry requires strategies for the development of the management-related knowledge and skills of the current and future software workforce. Although several approaches help teach the required skills in a university setting, few empirical studies are currently available to characterize and compare their effects. This paper presents results of
Perovskite solar cells have rapidly been developed over the past several years. Choice of the most suitable solar cell structure is crucial to improve the performance further. Here, we attempt to determine an optimum cell structure for methylammonium lead iodide (MAPbI3) perovskite sandwiched by "2 and spiro-OMeTAD layers, among planar heterojunction, mesoporous structure, and extremely thin absor
We all know that conflict creates displacement. Life becomes untenable in different ways, and people are forced to move; the majority ending up as internally displaced people within the nation-state, while others wind up in refugee camps in neighboring countries, and a very few seek asylum in faraway places. The recent war in Ukraine and the conflict in Syria since 2011 seemingly fit into this cla
Aim: The aim of the study was to identify and describe two couples’ approaches to changes in everyday life during the first year after a stroke. An additional aim was to describe how the couples viewed rehabilitation as well as their own personal training relative to changes in everyday life during the first year at home after stroke. Method: The study design was a prospective longitudinal case st
