Filtyp
This master thesis aims to improve the physical design of smart ear tags for animals. The focus was to minimize the risk of tags falling off or causing harm, while considering environmental and animal welfare aspects. The project followed the methodology of Ulrich & Eppinger’s product development process, which included stages such as planning, concept development, and testing. Data collectio
Bakgrund: I jämförelse med andra vårdgivande yrken har ambulanspersonal en högre sjukfrånvaro på grund av depression, stress och ångest. Det finns en hög frekvens (11%) av posttraumatiskt stressyndrom (PTSD) som konsekvens av arbetsrelaterad stress hos ambulanspersonal i jämförelse med den allmänna befolkningen. Ambulanspersonalens vardagliga arbetsmiljö inkluderade flera stressorer och blir därme
Plastic material poses significant threats to the environment, both due to their fossil-based origins and contribution to littering the environment. This master's thesis conducts a thorough investigation into Bhutan's waste management system, with a focus on plastics, aiming to find the most promising alternatives to improve the handling of waste for decreasing environmental issues and cre
In recent years, an increasing number of sites with high PFAS concentrations have been identified, often at fire training grounds where firefighting foam has been used. This master thesis aims to investigate the distribution pattern of PFAS at such a fire training site and determine how the concentration and composition of a group called PFAS11 have varied during the period of 2023-2024. Methods i
The Swedish government's new interest in existential health's impact on the population, alongside the uncertain professional role of the school social worker (SSW), motivates research on their discretion and potential within the subject of existential health. How Swedish schools contribute to students' existential health is under investigation and there are a couple of initiatives in d
The rapid advancement of computer vision, powered by large-scale visual datasets and deep learning, has raised pressing concerns about privacy, particularly when human faces are involved. This work explores how facial anonymization affects the performance of human detection models, aiming to balance identity protection with model utility. A range of anonymization techniques are applied, including
Regarding climate change and the future need för renewable energy, hydrogen is considered to be an important component in energy storage systems. However, the use of hydrogen is fraught with risk due to its chemical properties. This thesis deals with the problem of modelling heat transfer from hydrogen jet flames hitting surfaces. This paper aims to assess how well KFX reproduces results of hydrog
Log messages are implemented by developers to record important runtime information about a system. For that reason, system logs can provide insight into the state and health of a system and potentially be used to anticipate and discover errors. Manually inspecting these logs becomes impractical due to the high volume of messages generated by modern systems. Consequently, the research field of mach
Inom den senare skoldidaktiska forskning som gjorts tillskrivs sakprosaskrivande allt större vikt. I takt med ökade krav på skrivfärdigheter i skolans högre årskurser synliggörs elevers svårigheter med denna genre. Dessa färdigheter kan betraktas angelägna för ett aktivt samhällsliv i ett demokratiskt samhälle, och därtill nödvändiga för att i enlighet med skolans uppdrag kunna orientera sig i den
Syftet med detta arbeta är att bidra med kunskap som kan förebygga dis-kriminering av personer med funktionsnedsättning kopplade till använd-ning av automatiserade beslutsprocesser inom statliga myndigheters ären-dehantering, med fokus på beslutsprocesser på Försäkringskassan. Det finns många risker med helt eller delvis automatiserade beslutsprocesser som kan leda till missgynnande. Det finns åtgThe purpose of this work is to contribute knowledge aimed at preventing dis-crimination against individuals with disabilities. To the use of automated deci-sion-making processes within governmental agencies’ case handling, with a focus on decision-making processes at the Social Insurance Agency (Försäkringskassan). There are numerous risks associated with fully or par-tially automated decision-mak
In late October 2023, the storm Babet struck the southeast coast of Sweden, high waves and extreme water levels caused significant damage to infrastructure. Simrishamn’s central harbour was particularly affected, with waves smashing and destroying the as- phalt on the southern pier. The revetment covering the entire seaward edge of the pier is estimated to tolerate a significant wave height of up
Auditory Attention Decoding (AAD) aims to determine the focus of a listener’s attention in environments with multiple overlapping speakers, a challenging situation for hearing impaired patients known as the Cocktail Party Problem. This thesis investigates AAD using Whisper, a transformer-based Automatic Speech Recognition (ASR) system that performs a graded transformation from speech to text while
This thesis focuses on the optimization of a dual-motor powertrain for an electric vehicle known as the LEVKART, a lightweight four-wheeled vehicle developed for both indoor and outdoor usage. The study examined the effect of different battery voltages, specifically 36 V, 39.6 V, and 43.2 V, on the vehicle’s performance. The main focus lies on reducing the energy consumption and increasing the ran
Följande studie är en fallstudie om implementering av AI för att driftoptimera styrsystem i kommersiella fastigheter, med fokus på fastighetsägares perspektiv. Studien har genomförts för att uppfylla två huvudsakliga syften. Del ett är att undersöka hur AI kan bidra till minskad energiförbrukning och förbättrad drift i kommersiella byggnader, och vilka incitament som finns för att implementera denThis study is a case study on the implementation of AI for optimizing building management systems in commercial real estate, with a focus on the perspective of property owners. The study addresses two main objectives. The first is to explore how AI can reduce energy consumption and improve building operations, as well as the incentives for adopting such technology. The second is to analyze the org
In this thesis we have evaluated methods for doing full-text searches in patent documents. The aim of patent searches is to find evidence and relevant documents when an invalidity search is done on a patent. With three different language models, BOW, SPECTER and SBERT, we have evaluated the results of two different text segmentation methods, greedy sentence split and paragraph split, and two dif
Modern video streaming may use the protocol H.264 to encode video in high quality. The protocol takes advantage of similarities between consecutive frames to lower the bit rate. If there are differences between frames the bit rate will therefore rise. To control the fluctuations in bit rate a rate controller (RC) can be used together with the encoder. The RC manages the quantisation levels of the
Direct Memory Access (DMA) is a feature of computer systems that allows hardware subsystems to access the main memory of the system independent of the Central Processing Unit (CPU). With the rise of big data transfers from/to different I/O devices, the use of DMA controllers has increased significantly. The work of DMA is not limited to only offloading processor data transfer tasks, but it can tra
Bio-based binders have recently been introduced to reduce the dependence on fossil raw materials, which bitumen is produced of. Measurements with dynamic shear rheometer (DSR) and rotational viscometer (RVB) were performed on mixtures with bitumen and two different types of bio-based binders, namely Lignin 1 and Lignin 2. Parameters like softness point, viscosity and parameters used to evaluate ru
