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The main goal of this project was to use the Modelica features on embedded systems, real-time systems and basic mechanical modeling for the control of a two-wheeled self-balancing personal vehicle. The Elektor Wheelie, a Segway-like vehicle, was selected as the process to control. Modelica is an object-oriented language aimed at modeling of complex systems. The work in the thesis used the Modelica
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With this thesis we want to prove that by using a single formula for picking stocks, Joel Greenblatt’s ‘’Magic Formula’’, it is possible to achieve returns higher than those achieved by a related index. To prove this, we will construct a portfolio, according to “The Magic Formula”, and backtest the portfolio in the Swedish stock market. The test period will be March 1999 to January 2010 and we wil
This study examines the effects of changes in macroeconomic variables on sovereign CDS spreads for the countries within the PIIGS block. We run regressions for the countries individually and with the inclusion of Germany as a benchmark. In addition to study the whole time period (2004Q1-2009Q3), we divided it into two sub-periods, the first being financially stable and the second being characteriz
Context: Today, 96% of Sweden’s materials come from virgin resources and only 3.4% of resources used in Sweden are retained in the value chain. From a total of 266 million tonnes fed into the economy each year, 46.9% consist of construction materials. Hence, there is a need to adapt circular strategies, such as reuse of construction products, to meet Sweden’s goal of becoming net zero by the year
Syftet med denna rapport är att utvärdera möjligheten att använda Virtuell Verklighet (VR) som ett medium för användbarhetstestning. Användbarhetstestning är en viktig del av alla iterativa utvecklingsprocesser. Vanligtvis utförs testerna i en laboratoriemiljö utanför produkternas naturliga miljö. Genom att använda VR kan dock användare uppleva testmiljön på ett mer realistiskt sätt. Studien genoThis thesis aims to evaluate the feasibility of using virtual reality as a medium for usability testing. Usability testing has long been an important part of any iterative development process. Most usability testing is, however, done in a lab setting, outside the product's natural environment. Virtual Reality (VR) on the other hand can engross a user in any environment. This thesis was done i
In this thesis, we evaluate the side-channel security of the NIST HQC post-quantum cryptosystem by analysing the official FPGA decapsulation implementation. A hardware wrapper was created to interact with the HQC decapsulation modules, enabling ciphertext decapsulation with precise power trace capturing using a ChipWhisperer CW305 and Husky setup. A dataset with 20k power traces was generated from
As plastic pollution in aquatic environments persists, gaining a deeper understanding of nanoparticles has become increasingly important. Yet, the question remains: what happens to plastic as it breaks down into smaller components, and ultimately, what end products are formed? Current plastic degradation methods are limited in their environmental applicability and efficiency. This study aims to pr
Hybrid detectors, consisting of semiconductor sensors bonded to a readout Application-Specific Integrated Circuits (ASICs), are widely used for single-photon detection in photon science and high-energy physics. The Timepix3 readout chip provides precise Time-over-Threshold (ToT) and Time-of-Arrival (ToA) measurements, making it a valuable tool for sensor characterization. This thesis presents the
This study looked at a fluorocarbon-free water-repellent treatment on different types of polyester textiles in order to test the durability of the treatment in simulated wear-and-tear tests in collaboration with Thule Group. This research was being done in order to gain a deeper understanding in the strengths and limitations of the C0 Water-Repellent (C0WR) treatment on polyester textiles. The stu
This master’s thesis examines similarities and differences in operational work, training, and the use of technology related to Smart Firefighting in Sweden and Hong Kong. Smart Firefighting has been proposed as a response to challenges arising from modern urban development, where data from smart buildings, combined with AI and digital tools, could support fire and rescue services. However, such da
Chromatography is a separation technique frequently used in the purication of medicinal drugs. In studies and project at the department of chemical engineering at Lund University a large amount of data have been generated through the use of their research software Orbit and their ÄKTA chromatography system. Methods have been developed for visualization of this data but there is currently no good w
The rapid spread of the infectious disease Covid-19 caused inevitable need of hand sanitizing products. The public agencies are recommending frequent handwashing and sanitizing and the current awareness of the importance of hand disinfection of the public will remain assimilated and will most probably become part of the daily hygiene practises. However, a frequent use of alcohol-based hand sanitiz
Few studies have been made on challenges and enablers with implementing Stage-Gate processes in mature organizations. The aim with this thesis, is therefore to fill the gaps in knowledge within implementation of Stage-Gate processes and additionally describe the general challenges and enablers with Stage-Gate processes for R&D and innovation projects. PaperCo, a mature international organizati
Supported by the Design Business Association, the purpose of my research is to explore and explain how organisations are successfully using design as an ingredient within their business mix, in order to provide insights for managers, designers and design-promoting organisations. The research adopted an inductive approach and utilised an interpretive qualitative methodology which fits with a subje
This thesis serves as participatory action research with a case study to investigate and test packaging solutions for last mile delivery of food sold online, specifically via the meal kit subscription box industry. The study is done within the context of the case study subject’s product, production, and logistics’ requirements. Identified materials and packaging systems applicable to the immediate
Deep learning is a machine learning technique inspired by the biological nervous system. The method has been used more and more over the last decades. Within this thesis, convolutional neural networks (CNN:s) are used for Gleason classification of prostate cancer in histopathological images. The data that has been used consists of digitalized microscopic images of prostate biopsies stained with ha
