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Bricklaying is one of the most accident-prone professions in the construction industry, with heavy and non-ergonomic lifting being a leading cause of sick leave and back problems. Increased automation is expected to reduce the number of work-related accidents while simultaneously improving productivity. Existing solutions are often expensive and inflexible. This thesis investigates how a pick- and
The introduction of the Environmental Transmission Electron Microscope (ETEM) has revolutionized scientific studies by allowing in-situ studies of nano and angstrom scale samples in varying environments. In combination with the introduction of the Microelectromechanical Systems (MEMS) chip the ETEM has become a powerful tool for high resolution imaging of material interaction. However, the MEMS ch
We introduce Mix Encoder, a novel self-supervised learning framework for deep tabular data models based on Mixup [1]. Mix Encoder uses linear interpolations of samples with associated pretext tasks to form useful pre-trained representations. We further analyze the viability of tabular self-supervised learning by introducing VIME [2], an established representation learning framework for tabular dat
Electroporation is a technique used to transfect cells, i.e. to introduce nucleic acids in cells. The method consists in applying a voltage over the cells which leads to the opening of pores in the cell membrane through which cargo can diffuse to the cell interior. If the cells are cultivated on top of nanopores or nanostraws, dielectric structures one can achieve nanoelectroporation when applying
Neurodegenerative diseases, including Amyotrophic Lateral Sclerosis (ALS), Alzheimer’s Disease (AD), and Multiple Sclerosis (MS) emphasise the need of effective diagnostics tools to provide early diagnosis and disease prognosis as well as treatment. The Neurofilament Light Chain (NfL) antigen is a promising biomarker in immunoassays for neurodegenerative disease diagnosis due to its elevated conce
Abstract This thesis is an evaluation of piezoelectric speaker drivers for loudspeaker design. It goes through the electrical and sound generating properties of the speaker drivers and general theory of piezoelectric speaker drivers. A prototype single speaker driver loudspeaker has been realized and evaluated by measuring the frequency response and sound pressure level (SPL), total harmonic disto
This thesis considers the problem of finding an optimal control policy for control problems in continuous time and space, utilising reinforcement learning techniques. Finding analytical solutions to optimal control problems is often intractable due to involved constraints, cost-function objectives, and uncertainty. The focal point will be on reinforcement learning RL techniques to find approximate
This thesis investigates the potential of hydrogen fuel cell (HFC) technology as a sustainable alternative for regional rail transport within the framework of the EU-Rail Flagship Project 6. The thesis focuses on developing a hybrid powertrain model that incorporates both HFC and battery technologies, implementing a rule-based energy management strategy to assess fuel consumption and environmental
This study examines the mechanisms behind the gender gap in equity-based start-up funding within the Information and Communication Technologies sector in Sweden and contributes to discussions on gender equality by presenting strategies for fostering inclusive access to equity-based capital. The analysis is guided by the following three research questions: (RQ 1) Does gender affect Swedish entrepre
Due to the ongoing urbanisation, the urban environment will consist of extended impervious areas, such as roof tops, roads and parking lots. During rainfall events these kinds of impermeable areas will cause a faster and larger response in runoff, which can lead to an increased load on the storm-water system and thus increase the risk of flooding. In certain areas, the situation will be further wo
There have been several studies which indicate a preferential invasion towards younger red blood cells (RBCs) for the malarial parasite, P. Falciparum. Knowledge about a preferential mechanism could aid in the development of novel anti-malarial drugs. While the preference in these reports has been studied with density-separation of red blood cells, separating the cells by deformability may be a mo
It is said that coreference is difficult to explain, but easy to comprehend; everyoneknows coreference, they just don’t know that they do. We trained a computer toknow it too! Coreference resolution is the identification of phrases that refer to the same entity in a text. Current techniques to solve coreferences use machine-learning algorithms, which require large annotated data sets. Such annota
The constantly increasing awareness of protecting the environment has put electrical roads in the spotlight as an alternative solution to fossil driven means of transport. Dan Zethraeus has developed an innovative idea for a prototype electrical road which conductively supplies power to the cars whilst driving. The concept is to place a line of short rail segments in the middle of the drive lanes
The constantly increasing awareness of protecting the environment has put electri- cal roads in the spotlight as an alternative solution to fossil driven means of trans- port. Dan Zethraeus has developed an innovative idea for a prototype electrical road which conductively supplies power to the cars whilst driving. The concept is to place a line of short rail segments in the middle of the drive la
The purpose of this master thesis project was to compare two pasteurizers (pasteurizer 31 and 52) at Österlenmejeriet AB (ÖMAB) in Lunnarp, which is a part of Danone, France and once the differences were clear the goal was to have them equalized in the aspect of heating effects/temperature treatments/heating load and processing parameters. The products that are mainly pasteurized on these pasteuri
The demand for organic products is high in France, and the amount of land under organic production is increasing. This is due to the Organic Certification label, that helps to bring up the price and attractiveness of organic goods, and the Common Agricultural Policy (CAP) that provides farmers funds and assistance. However, organic farmers in France still struggle to make ends meet which is detrim
Batch high-shear mixers are used in a variety of different processing industries,such as the pharmaceutical, chemical and food industries. One company that utilize this type of mixers is Tetra Pak. High-shear mixers can be used for many different mixing scenarios, but only liquid-liquid mixing is discussed in the thesis. The batch high-shear mixer is constructed with a rotor-stator at the bottom o
Today communication, promotion and transaction of products are key functions of product packaging. The quality of the package print is therefore of great importance and needs to be consistent for large production quantities. One of the most common technologies for printing on paper or cardboard is flexographic printing. With this technology colors are applied one by one and through their combinati
A new pharmaceutical product suitable to act as a negative contrast agent for Computerized Scan (CT-scan) of the abdomen is under development. At the moment the product has the form of a powder, which when dispersed in water and whipped, gives a stable foam. The foam is ingested by individuals who are about to undergo a CT-scan, as a prior preparation step. The powder form has disadvantages such a
