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This thesis describes the development of a temperature control system for optical spectroscopy experiments with rare-earth doped samples. Low temperature emission spectra were afterwards recorded for a series for Eu3+ singly doped and Ce3+, Eu3+ codoped Y2SiO5 samples. The analysis and assignment of the different energy transitions is presented. The experimental setups used in this thesis involve
Humans have always communicated with each other. When the smartphone technology was launched on the market, it revolutionized the way people communicate. This smartphone technology is constantly evolving and during 2014 wearable computing seems to be in the focal point at most smartphone technology conferences. This master thesis aims to discover how a wearable computing device can further develo
This thesis picks up the journey from my Bachelor’s thesis where it was concluded that current legal protection of the Intellectual Property (IP) for “computer programs” and associated components is fractured and contains gaps that provides for legal uncertainty for the author/creator/inventor. The BSc thesis’ analysis covered IP protection provided through international treaties, statutory law an
This thesis project was carried out in department of physics (Division of exper- imental nuclear and particle physics), University of Basel, Switzerland. The PANDA (Anti-proton Annihilations at Darmstadt) experiment is one of the biggest projects at the new FAIR (Facility for Anti-proton and Ion Research) facility in Darmstadt. The main purpose of the PANDA experiment is to study Hadron spectrosco
We’re living in a time where more and more evidence of our impact on the environment appears every day. A lot of resource and time have been spent in order to identify and inform about the ecological footprint us humans enlarge day by day. The realization of human impact on the environment introduced large scale research and UN reports on the subject and a definition and goal to strive after was e
This thesis is based on the two months I spent in Bolivia doing applied cultural analysis for a nongovernmental organization (ECAM) that works for women empowerment and gender equality. My intention is to explore the relationship between academia and activism by focusing on the approaches that have been pointed out as counterproductive in the struggle for gender equality. Specifically, the objecti
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
I takt med digitaliseringens frammarsch har allt fler delar av våra liv integrerats med digitala plattformar av diverse slag, genom vår användning av sociala medier, sökmotorer, prisjämförelseverktyg m.fl. Att detta påverkar vår vardag kan knappast låta häpnadsväckande – så pass vardagliga är dessa plattformar att vi kanske inte tänker något särskilt på vilka appar som är förinstallerade på våra tAs digitization advances, more and more parts of our lives have been integrated with digital platforms of various kinds, through our use of social media, search engines, price comparison tools, and various other services. That this affects our everyday life can hardly sound surprising – these platforms are so commonplace that we may not give much thought to which apps are pre-installed on our phon
This thesis explores the feasibility of integrating a fall detection system into microprocessor-controlled prosthetic knees using onboard sensors, with a focus on optimizing machine learning models for real-time operational efficiency within the limited computational capacities of such devices. Initial investigations utilized the public UMAFall dataset to gain insights into fall detection methodol
Detection of Listeria monocytogenes by the microbiological standard method (ISO 11290-1) is time consuming and requires several days to get results, thus a more rapid detection method is required. The aim of this study is to continue the optimization of a rapid method that is based on quantitative polymerase chain reaction (qPCR) to detect L. monocytogenes in food matrices. The method is based on
Biodiesel is an important alternative to ordinary diesel when limiting the effects on the climate. However, the production path of biodiesel produces a wastewater with a high chemical oxygen demand (COD) and it needs to be cleaned. The aim of this study was to characterise biodiesel wastewater as well as to suggest treatment options. The biodiesel wastewater studied came from a biodiesel plant i
The usage of new media spaces has a strong impact in contemporary politics and democracy as political messages are largely exchanged through new communicative spaces of media. These democratized media spaces are also used for counter-democratic communication by right-wing populists around Europe. This thesis is a case study of the Estonian right-wing populist media platform Uued Uudised. The artic
