This study evaluates the possibility of charging large capacitors to high voltages within short time frames. The system is designed to charge a capacitor of 4 mF from 0 to 850 V in one second by connecting a 24 V lead acid car battery to a flyback converter. Simulation has shown that this is possible using as little as four transistors as long as proper cooling is provided. The charge sequence cou

Asthma exacerbation is among the leading causes of mortality and morbidity. Bronchial epithelial cells (BECs) are of interest because they represent not only a physical barrier against infections, but also a biological barrier between the inhaled agents, such as allergens, and the immune system. As known, systemic inflammation of the lungs, or dietary factors could have effects on lung disease wor

Partikelfysikens standardmodell är en av de mest exakta modellerna inom fysiken. Den beskriver interaktionerna mellan fundamentala partiklar som kvarkar och leptoner, hur Higgspartikeln ger massa till andra partiklar och tre av universums fyra fundamentala krafter: elektromagnetism, svag växelverkan och stark kärnkraft. Tyvärr finns det frågor som inte ens standardmodellen kan svara på. "VarfProbing the physical regions in large parameter spaces of typical Standard Model (SM) extensions can be a very difficult computational task. In this thesis project, a new framework has been developed that utilises well-known Machine Learning (ML) techniques in the form of neural networks trained by a genetic algorithm. This framework is rather generic and designed to explore new physics model para

Forskningen om användning av psykedeliska substanser för behandling av olika psykologiska problem som beroende, behandlingsresistent depression och dödsångest tycks indikera att användning av psykedelika under rätt omständigheter kan ha positiva resultat för mental hälsa. Forskningen antyder också att de potentiellt positiva resultaten för mental hälsa inte kan reduceras till endast farmakologiskaResearch on using psychedelic substances for treating various psychological problems such as addiction, treatment resistant depression and death agony seem to indicate that under the right circumstances the use of psychedelics could have positive outcomes on mental health. Studies also suggest that the potentially positive outcomes on mental health cannot be reduced to pharmacological effects alon

Quantum error correction will be integral in developing full scale quantum computers, but as of yet beneficial quantum error correction has not been demonstrated experimentally. An important question is therefore what prerequisites need to be met to achieve this. Results of density matrix simulations of the performance of the seven qubit Steane code in a quantum computing setting are presented. Th

Sound ranging is a method to locate sources of sound waves using microphones or other types of receivers at known reference positions. Nowadays, these receivers can be made both very small and powerful, lasting for a long time on a single battery charge, making them suitable for longtime outdoor purposes such as detecting artillery fire or other loud sounds. In this master thesis, we present a sou

Diversity is an important part of the health of our planet’s ecosystems and processes. Anthropogenic factors like urbanization and agriculture have altered the landscape and in turn had a negative effect on diversity. Efforts to maintain and preserve diversity for long term ecological strength, have led to more holistic approaches by handling many types of diversity under the same field of “landsc

Cellodling är ett viktigt verktyg för forskning om neurologiska sjukdomar, men traditionella metoder där celler odlas på glasytor har många brister och forskare söker därför efter nya typer av substrat. I detta examensarbete har vi undersökt hur nanofibrer kan användas som substrat för odling av hjärnstamceller. Vår studie visar att nanofibrer fungerar som substrat, men att mer forskning behövs föNovel biomimetic three-dimensional scaffolds have emerged over the last decades, and are promising for applications in regenerative therapies, as well as in in vitro disease modelling and drug testing. Thanks to their added dimension, these scaffolds are able to more accurately mimic the topography of native cellular microenvironments compared to traditionally used two-dimensional culture substrat

Uppsatsen klargör svenska arbetsgivares anpassningsskyldighet och hur långt den sträcker sig. Uppsatsen undersöker även om det finns en liknande skyldighet i Norge och Danmark och sedan görs en jämförelse mellan de olika länderna. Skyldigheten att anpassa arbetet i en situation där en individ har en funktionsnedsättning är lika i de skandinaviska länderna. Detta beror bland annat på att länderna h

This project started with an exploration of how logistics that is created by design could be re-imagined, leaving some material of an product to be sourced by the user locally. Saving weight and space during transportation, but also to generate another kind of user participation and knowledge With this in mind, a collaboration with IKEA was initiated with the end goal to do a product for their sh

Världen är i ständig miljö- och hälsofrämjande utveckling, där ny forskning och upptäckter hela tiden driver marknadskrav och bidrar till restriktioner. Plastindustrin har länge varit under luppen, till stor del för fossila råvaror och nedskräpning, men även då vissa plastmaterial innehåller ifrågasatta tillsatser. Flexibel Polyvinylklorid (PVC) är en typ av plast som används mycket i dagens samhFlexible Polyvinyl chloride (PVC) is a plastic material commonly used in today’s society and a fundamental material for a lot of sectors. It has advantages over other polymers such as energy-efficient production, flame retardancy, durability and cost-effective. The one important component in flexible PVC that gives it is flexible properties is the plasticizer. The most common plasticizers used are

As social desirability has not received enough focus when estimating the predictive power of personality in explaining well-being variance, recent accounts of the relationship between ratings of personality and well-being might be overestimated. The current study investigated the influence of social desirability, operationalized as the evaluative factor of personality (i.e., the tendency to react

Histopathology is the procedure used in medicine to optically examine microscope-images of tissue samples (biopsies) in order to study the manifestation of disease. It is used, for example, to diagnose the spread and type of cancer tumors, which have implications on the chosen treatment. Currently this type of analysis is done manually by trained professionals. It is time consuming and the diagnos

This thesis investigates the possibility of computing interval estimates for metrics that pertain to traffic safety based on surrogate measures of safety. A probabilistic model of the (near) crash count is defined using the generalized Pareto distribution and three different methods for calculating confidence intervals for the corresponding intensity parameter are proposed. We consider the delta m

This thesis seeks to understand the narrative presented by Mette Frederiksen in an interview published in Jyllands-Posten on October 16, 2019 bearing the header The EU-cooperation is disconnected from the world, we are a part of through interpretations from relevant experts. In order to extract what can be learned about the Danish future relation to the EU, the thesis examines how four Members of

In contemporary tourism, technology enables travelers to make travel arrangements in various ways, for example they can reserve tickets directly from airlines company’s website or purchase products from online travel agencies. Considering that travelers have many alternatives but insist in making transactions with traditional travel agencies, there must be something that makes traditional travel a

Artificiella Neuronnät är datorvärldens ekvivalens till det mänskliga nervsystemet. Precis som nervsystemet är ett nätverk av neuroner som är kopplade till andra neuroner med nerver så är det artificiella neuronnätet ett näverk av noder som är kopplade till andra noder med länkar. Det artificiella neuronnätet tar en inputsignal som skickas igenom nätverket och där noderna signalen stöter på på vägNeuroevolution is a field within machine learning that applies genetic algorithms to train artificial neural networks. Neuroevolution of Augmenting Topologies (NEAT) is a method that evolves both the topology of the network and trains the weights of the network at the same time, and has been found to successfully solve reinforcement learning problems efficiently and the XOR problem with a minimal

Receiving social support is central in dealing with life events in general. Intersex or disorders of sex development (DSD) people and especially adolescents, however, have been found to be reluctant to share information about their sex development and often find themselves dealing with it on their own. A shift toward more psychosocial care for intersex/DSD people and human rights claims for more a