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The problem of estimating the node density in ad hoc networks is a significant one for protocol design. In molecular nanonetworks, the node density estimation problem poses additional challenges due to the limited processing and communication capabilities of the network nodes which necessitate the design of simple to implement distributed solutions, and the diffusion based communication channel wh

To plan, design and build with diversity in mind is a complex process. While goals such as inclusion, participation and social sustainability may be present in the vision for a future product, service or environment, studies show that the initial vision isn’t always realized in the end result. There are still far too many products, services and environments that are hard to access or use for parts

The rise of water-based electromagnetic devices opens up new possibilities for controlling electromagnetic performance due to the liquid state of crucial parts of the device. This letter proposes the siphon mechanism as a novel way to achieve reconfigurability in these types of electromagnetic devices. To demonstrate this, a simple polarization-reconfigurable device based on a siphon is introduced

Proof logging has long been the established method to certify correctness of Boolean satisfiability (SAT) solvers, but has only recently been introduced for SAT-based optimization (MaxSAT). The focus of this paper is solution-improving search (SIS), in which a SAT solver is iteratively queried for increasingly better solutions until an optimal one is found. A challenging aspect of modern SIS solve

Begreppet rättssäkerhet används ofta både inom och utom den rättsvetenskapliga sfären. Eftersom man inte sällan möter det i den allmänna debatten i Sverige, syftar den här uppsatsen till att undersöka om begreppet i det sammanhanget används i samma betydelse som inom rättsvetenskapen. Undersökningen tar avstamp i vad framstående svenska rättsvetare har uttryckt ifråga om att definiera begreppet r

This thesis will explore the use of AWS machine learning services that enable natural language processing (NLP). More specifically, this work will focus on sentiment analysis of product and service reviews written in Swedish. To find the most efficient solution to this task, the ready-made sentiment analysis tool available on AWS (Amazon Comprehend) was compared to custom-made solutions built on t

Machine calibration is important for optimal performance throughout the lifespan of industrial processes. A prime example is the pick-and-place process, where robots must manipulate objects accurately. Currently, this process is manually calibrated, which can be a complex practice. This thesis studies a software-based approach to error detection within the process, aiming to reduce the need for ma

Building interaction prototypes for ubiquitous computing is inherently difficult, since it involves a number of different devices and systems. Prototyping is an important step in developing and evaluating interaction concepts. The ideal prototyping methodology should offer high fidelity at a relatively low cost. This thesis describes the development of interaction concepts for controlling consume

As the society gets more and more dependent on electrical energy, it is highly desirable to ensurepower supply at all times. In case of events of natural disasters, simple technical faults or human mistakes, any power system or a large part of it can suffer a blackout. An electrical shutdown is a crisis situation where recovery should happen as quickly as possible. During the restoration after the

Landscape fragmentation and habitat loss are detrimental to biodiversity, affecting highly specialised species the most. Species distribution models usually require either solid knowledge about the ecological niche of the species or spatial distribution data. Many endangered species have, how- ever, a relatively unexplored ecological niche in combination with a very small area of distribution. A m

I takt med att den digitala arbetsmiljön växer måste kraven på användbarhet och tillgänglighet tillgodoses. Detta projekt genomfördes i samarbete med Assa Abloy Entrance Systems som är en global leverantör av automatiska entrélösningar. Projektets syfte var att utvärdera och utveckla användarupplevelsen och användbarheten av ett försäljningsverktyg genom att kartlägga och förstå användarna och derAs the digital work environment is growing, the demands of usability and accessibility must be met with increasingly higher standards. This project was performed in collaboration with Assa Abloy Entrance Systems, a global provider of automatic entrances. The project purpose was to evaluate and develop the user experience and usability of a sales tool by mapping and understanding the users and thei

Momentum or trend following investing refers to trading strategies constructed around the idea that in financial markets, the current trend will, more often then not, prevail. In the context of asset prices, this means that previous returns or the price development of an asset is indicative of similar future returns and price development. While at odds with established theory such as the weaker fo

Energy harvesting enables products to become more self-sufficient of power and offers the possibility to avoid battery exchange and power cables. The performance and applicability of the most promising or popular small scale energy harvesting technologies are investigated in this thesis. The focus lies on the amount of potential energy that can be harvested and how limited the technology is to a s

This report has investigated which type of risk analysis methods that can be used in an early design phase in a unique facility from a time and quality perspective. Two planned underground facilities for the HL-LHC at CERN have been used as a case study. The methodology is an action research study with information gathered from a literature study and survey. Six different risk analysis methods hav

One way to increase the flexibility of industrial robots in manipulation tasks is to integrate additional sensors in the control systems. Cameras are an example of such sensors, and in recent years there has been an increased interest in vision based control. However, it is clear that most manipulation tasks can not be solved using position control alone, because of the risk of excessive contact f

Since the beginning of wireless communication, one of the central problems has been resource management and maximization of network throughput. Solving these recurring issues is an important topic in the field of wireless communication to increase application options and the user experience. The existing methods for solving the issue of inter cell interference by maximizing the network capacity ar

Sedan den första generationen av mobila nätverk lanserades i början av 80-talet har en ny generation utvecklats ungefär vart tionde år. Med ett alltmer digitaliserat samhälle har användningen av de mobila nätverken ökat drastiskt. Ökningen ställer nya krav på nätverkens kapacitet där den senaste generationen, 5G NR, är utvecklad för att tillgodose dagens och kommande års behov. Dessa behov innefatAs the demand for higher data rates and lower latencies increase, together with the use of higher frequency bands, MIMO and beamforming have become an essential part of the 5G NR technology. Calculating the beamforming weights is a costly process, and reducing the frequency resolution of the weight calculations would save a significant amount of computational power. Which resolution is suitable to

Diabetes Mellitus is a chronic disease, where the blood glucose concentration of the patient is elevated. This is either because of missing insulin production due to failure of the β-cells in the pancreas (Type 1) or because of reduced sensitivity of the cells in the body to insulin (Type 2). The therapy for Type 1 diabetic patients usually consists of insulin injections to substitute for the miss

Dressed Gluon Exponentiation (DGE) is used to calculate the thrust and the heavy-jet mass distributions in e + e - annihilation in the two-jet region. We perform a detailed analysis of power corrections, taking care of the effect of hadron masses on the measured observables. In DGE the Sudakov exponent is calculated in a renormalization-scale invariant way using renormalon resummation. Neglecting

This thesis is using the theory of participatory democracy to show how one can work to increase the participation in the society, between elections as well as during elections. For a couple of years now many traditional democratic countries have been struggling with low voting rates. Hence this, I find it interesting to study what has been done to cope with this problem. The government in Sweden h