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STEM-EDS is a common technique used for compositional mapping in materials. The vasts amounts of raw data produced by STEM EDS is suitable for advanced analysis using methods in unsupervised machine learning. One powerful method is Principal Component Analysis (PCA) which can automatically discover significant chemical correlations in a sample. Although more powerful than classical analysis, there
Since 2004 when mechanical exfoliation was first utilised to produce single layered samples of graphite, 2D materials have gained interest in the scientific community. With the prerequisite that the initial bulk material has a layered structure, these 2D materials have created an opportunity to examine materials on a very small scale as well as opening the possibility of creating smaller electrica
Mexico will need to provide about 26 million housing units by 2030 and it is only through the understanding of the current situation and the awareness of the main challenges that affect the housing problems, that appropriate responses to the context can be proposed. By providing decent, secure and affordable housing, social problems can be reduced improving health and security, local economies can
Syftet med uppsatsen är att undersöka om skyddsintressen bakom brott mot griftefrid kan få olika effekt för olika kvarlevor. Vidare syftar uppsatsen till att undersöka hur det reglerats historiskt för att få reda på om skyddsintressen förändrats över tid. Den första frågeställningen är hur brott mot avlidna och deras viloplatser reglerats historiskt, liksom om äldre värderingar förändrats. Den andCrime against the peace of the grave, “brott mot griftefrid”, is found in 16 chap 10 § Penal Code of 1962 (brottsbalken). The paragraphs in the Penal Code aim to protect an interest. The interest can be that either of a group, an individual or of the society. The purpose of the thesis is to investigate if the protective interests behind the paragraph have different effects on different types of re
A new high-performance robot called the Gantry-Tau robot was developed by ABB Robotics, the Robotics Lab at Lund University and Güdel AG. This robot seemed promising in terms of speed, accuracy, stiffness and bandwidth of the motion control. However, the robot joints were based on the rack-and-pinion principle, which introduced significant backlash into the system. To solve this problem, it was pr
Functional MRI is a method used to map brain functionality, where the blood oxygen level (BOLD) imaging method is frequently used. Stimulation of neurons leads to an increase in energy and oxygen consumption and signal can be detected since oxygen changes the magnetic properties of the blood. In order to measure the signal variation, a fast pulse sequence is required. The purpose of this master th
Changes in the agricultural landscape have caused declines in bumblebee species richness and abundance. Semi-natural grasslands are key habitats for bumblebees in agricultural landscapes, and therefore it is important to understand which habitat characteristics promote species-rich bumblebee assemblages in these habitats. In this study, I investigate the importance of trees within semi-natural gra
This thesis presents the verification and validation testing performed on the evacuation simulation platform WUI-NITY which has the aim of being a simulation tool for the integration of different layers, such as pedestrian, traffic and wildfire with evolving dynamic interactions. The present thesis aims at applying a set of verification tests and validation testing suitable for WUI-NITY with a foc
Wildfires pose a significant safety issue, especially when they interact with urban areas, known as wildland urban interface (WUI) fires. As wildfire numbers are rising and developments near wildlands are increasing, there is an increased need to model all types of evacuation in order to prepare and inform evacuating authorities and evacuees. There is currently no research on the requirements need
En av grundpelarna för att bibehålla de enskildas förtroende för det offentliga är ett fungerande system för ansvarsutkrävande i det fall de offentligt anställda i tjänsten handlat på ett felaktigt sätt. Detta ansvarsutkrävande kan anses vila på tre ben: ett straffrättsligt, ett arbetsrättsligt och ett skadeståndsrättsligt. I detta arbete kommer de två första benen att utforskas på djupet. Genom One of the cornerstones for maintaining confidence in the public sector is a functioning system of accountability in the event that a public employee acts incorrectly within the obligations of his employment. This system of accountability can be said to rest upon three legs: one on criminal law, one on employment law and one on tort law. In this work, the first two legs will be explored in depth.
Speech Emotion Recognition (SER) opens up the possibility to collect opinions from people in channels that have not be conceivable before, such as youtube videos, podcasts or phone calls. SER is becoming more advanced, and the SER models that have been published recently are reaching accuracy-results well beyond state of the arts. However, SER is not a simple task and it is most common that the mo
I oktober 2019 antog EU direktivet om skydd för personer som rapporterar om överträdelser av unionsrätten (Visselblåsardirektivet). Syftet med Visselblåsardirektivet är att skapa en minimistandard inom EU för att skydda den som slår larm om oegentligheter. I maj 2019 tillsatte regeringen en utredning med uppdraget att föreslå hur visselblåsardirektivet skulle implementeras i svensk rätt. I juIn October 2019, the European Union adopted the Directive on the protection of persons who report breaches of Union law (the EU Whistleblower Directive). The purpose of the EU Whistleblower Directive is to provide common minimum standards of protection across the EU to whistleblowers who raise breaches of EU law. The Swedish Government appointed a committee in May 2019 to review the manner i
För att etablera sig eller avancera på en viss marknad är affärsmodeller och värdekedjor två verktyg till hjälp. Framförallt inom innovationsfattiga och resistenta branscher blir vikten av dessa verktyg tyngre. Ett innovativt företag inom byggbranschen studerades för att erhålla information om nuvarande läge som sedan med hjälp av teoretiskt ramverk kunde operationaliseras och undersökas. Detta gj
It is a well-known fact that in any Application Specific Integrated Circuit (ASIC) design, verification consumes most time and resources. And when it comes to huge designs, finding bugs can be tedious given the area and the complexity. As per Moore’s law, the design complexity is increasing exponentially due to the growing demand for performance. Therefore, On-Chip communication becomes crucial. T
The prevailing global climate transition is incentivized to occur in a short period of time. Hydrogen is considered a pivotal element towards a renewable energy system. However, the physical and chemical properties of hydrogen give rise to the risk of fire and explosion. This risk must be evaluated as hydrogen becomes increasingly integrated into society. This paper aims to investigate whether the
A common problem across scientific fields and industries is data storage. This thesis presents an open-source lossy data compression tool with its foundation in Machine Learning - Baler. Baler has been used to compress High Energy Physics (HEP) data, and initial compression tests on Computational Fluid Dynamics (CFD) toy data have been performed. For HEP, a compression ratio of R = 1.6 has generat
