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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 purpose of the study is to examine how the European Green Deal shapes and constrains what is considered possible and desirable in order to tackle the climate crisis. More specifically, the objective is to expose its underlying assumptions, interrogate what is taken for granted and left unproblematic. In order to examine how established knowledge shapes and constrains political action the study
This master thesis investigates how to perform irrational decimation, the process of reducing the sample rate of a signal, for high throughput systems. The thesis work consists both an algorithmic part and an implementation part. In the algorithmic part, an algorithm that could cope with the requirements is found, and investigated due to different aspects. A group of filters that are investigate
The increase in population and urbanization has led to widespread concern about the resulting volume of consumption. This is especially problematic in the housing market, where home size continues to grow. In the United States the average size of a single-family home has doubled since 1950, leading to a profound environmental impact. This paper will seek to address the problem of overconsumption b
Populärvetenskaplig sammanfattning Supramolekylär kemi är en relativt ny gren av kemin som involverar stora kemiska strukturer/enheter. Ett exempel på en ”supramolekyl” man dagligdags träffar på är klorofyll. Klorofyll (Figur 1 till vänster) består av en metall (magnesium) och en större kolvätestruktur som kallas porfyrin. Porfyriner finns i många olika varianter och används ofta i olika biologiskDuring the time range of this project, various compounds were synthesized. All of them will be used to synthesize the final compounds 2 and 3. Consequently, the compounds will build up a supramolecular cavity, which will be used to study a catalytic epoxidation of olefins. The aim of the project was furthermore to gain experience in laboratory work.
Metallic hip prosthesis is an implant that gets more common and comes with problems like metallosis (inflammation due to metallic debris). Magnetic resonance imaging (MRI) which is a superior method when imaging soft tissue (compared to other medical imaging techniques) is affected by metal implants and will result in a distorted image. View Angle Tilting (VAT) and Slice Encoding for Metal Artifac
Vulvar pain has been known of for thousands of years but the general knowledge of vulvar pain is limited and the condition receives less medical attention than other disorders. Previous research focus on physical and/or psychological causes, treatment strategies and problematizing female sexuality due to women’s inability to engage in sexual intercourse. This master thesis attempt to understand v
Utveckling och utredning av en automatiserad temperatur kalibrering temperatur fosfor. I denna avhandling presenteras en halvautomatisk temperaturkalibrering för termografiska fosforer. Temperaturdata från termoelement, och fosforensens avklingningskurva registreras och synkroniseras med en temperatur som ökar kontinuerligt över ett bestämt temperaturintervall. Ett LabVIEW-gränssnitt har utvecklaThis thesis achieves a semi-automatic temperature calibration for thermographic phosphors. Thermocouple temperature information and phosphorescence decay curves are recorded synchronized and continuously while the oven temperature is ramped across the entire temperature range. A LabVIEW interface was developed in this context and applied to calibrate two phosphors, CdWO4 and Mg4FGeO6:Mn. These two
Among the multidimensional effects that forced displacement has on population welfare, the economic ones may be measured in various ways: one of them is assessing the effect of being a forced migrant in the probability of accessing the labor market in the destination communities in Colombia. This is obtained through the estimation of a logit model which uses data from the “Survey in marginalized a
The FragMAX facility at MAX IV Laboratory is a state-of-the-art platform for crystallographic fragment screening, designed to support structure-based drug and chemical tool compound discovery. This facility offers a comprehensive workflow, from high-throughput crystal preparation and automated diffraction data collection at the BioMAX beamline to advanced data processing and analysis using custom
We consider the pebble game on DAGs with bounded fan-in introduced in [Paterson and Hewitt '70] and the reversible version of this game in [Bennett '89], and study the question of how hard it is to decide exactly or approximately the number of pebbles needed for a given DAG in these games. We prove that the problem of deciding whether s pebbles suffice to reversibly pebble a DAG G is PSPACE-comple
At a large tunnel project in Southern Sweden a number of geoelectrical and IP imaging were carried out. The tunnel is drilled through a horst with a complex geology which includes fractures, high water content and weathered zones. The measurements where carried out to compile a geologic model to use in the further planning of the project. The resistivity and IP complements each other very well sin
To predict the final geometry in thermo-mechanical processes, the use of modeling tools is of great importance. One important part of the modeling process is to describe the response correctly. A previously published mechanism-based flow stress model has been further developed and adapted for the nickel-based superalloys, alloy 625, and alloy 718. The updates include the implementation of a solid
With electrification of vehicles comes an increasing demand on low noise, which for gears translates to transmission error. In this paper, static transmission error, STE, is found for a large number of manufacturing error combinations belonging to different tolerance classes, with focus on those typically used in the automotive industry. There is a lack of studies found in the scientific literatur
This paper proposes distributed event-triggered schemes for achieving state consensus for multi-agent linear systems. For each agent modeled by a linear control system in Rn, a positive signal is embedded in its event function, with the aim of guaranteeing an asymptotic convergence to state consensus for networked linear systems interacted in an undirected and connected graph, and with Zeno trigge
The max-bisection and min-bisection problems are to find a partition of the vertices of a graph into two equal size subsets that, respectively, maximizes or minimizes the number of edges with endpoints in both subsets. We design the first polynomial time approximation scheme for the max-bisection problem on arbitrary planar graphs solving a long-standing open problem. The method of solution involv
