Filtyp
There are high hopes in Greenland that the country will go from being a nation of fishermen to a nation of oil producers. But what do we really know about the prospects? Our thesis investigates how favourable the geological, economic and institutional conditions are for building a self-sustaining economy in Greenland based on its hydrocarbon resources. The geological conclusions are encouraging.
Datering med accelerator? Måhända låter det otympligt, men när det handlar om att datera med hjälp av sällsynta slag av grundämnen kan varje atom räknas. Då handlar det om att kunna räkna enskilda atomer, vilket är möjligt med acceleratorbaserad masspektrometri, AMS. Lunds Universitet har en accelerator anpassad just för den här sortens mätningar, vilken främst nyttjas av institutionerna för fysiFor decades, accelerator mass spectrometry (AMS) has been used for radiocarbon dating. The background of this technique is outlined along with an in-depth look at the graphitization process used to prepare samples for AMS analysis. The technology necessary to achieve the vacuum quality needed in graphitization and accelerator mass spectrometry is discussed as well. The graphitization system belong
Reklam kan inte ses som en isolerad kommunikation mellan företag och konsumenter, den existerar i samtiden, i en kontext och i ett samhälle som låter sig påverkas av den. Vad som exponeras i det offentliga påverkar de uppfattningar och föreställning människor har om omvärlden i ett långsiktigt perspektiv. Syftet med studien är att undersöka och skapa förståelse för hur reklambyråer hanterar balans
In this master thesis we consider some phenomenological aspects of two-Higgs-doublet models, both elementary and composite ones. The emphasis is on calculating and understanding first order phase transitions in such models, constrained to be in agreement with existing collider data on the Higgs sector. We also consider the contribution to the gravitational wave background of the universe that woul
Open data is broadly expected to generate innovation and economic value for both the public and private sector. Though the diffusion of open data has kept a fast pace, knowledge of visualisation and points of access of open data remains low. Moreover, literature of the private-sector application of open data is still scarce. The first objective of this thesis is to increase the knowledge about the
LDMX is a fixed target experiment designed to search for light dark matter. The experiment will search for dark matter signatures using missing momentum and energy in events with electrons scattering in the target. Part of the experimental setup in this search is a high granularity electromagnetic calorimeter to accurately measure the energies of recoil electrons. In this thesis artificial neura
Det finns ett växande behov av miljövänliga sätt att transportera sig och därför har elcykeln slagit stort i Sverige. Elcykeln används ofta som transportmedel till och från jobbet men har potential att användas i andra sammanhang också. Miljöpåverkan orsakad av transport under semesterresor har uppmärksammats på senare tid. Samtidigt ökar efterfrågan på soft adventures, bekväma och tillrättalagda There is a growing demand for environmentally friendly ways of transportation, and therefore the electric bicycle has been booming in Sweden. The electric bicycle is often used as means of transportation to and from work, but has potential to be used in other situations as well. The environmental impact caused by transportation during holidays has recently gained attention. At the same time the de
Due to its high vulnerability, permafrost is one of the key features studied in the field of climate change impacts. Permafrost is widespread in the Arctic region. The majority of the area underlain by permafrost is however difficult to access for in-situ monitoring and it is difficult to get an overview of the current state of permafrost in many areas. Permafrost modeling provides a solution whi
In this concluding chapter, we draw together the threads of the different assessments carried out by the contributors and propose directions for future research. After a brief overview of the content of the chapters, we revisit and complicate the initial taxonomy we offered, attempting to suggest instead a more abstract classification that could serve as a basis for future assessments. Moreover, w
Combined quantum mechanics and molecular mechanics (QM/MM) calculations are a popular approach to study reaction mechanisms of enzymes. However, recently, the reproducibility of such calculations has been questioned, comparing the results of two software: NWChem and Q-Chem. Here, we continue and extend this study by including three additional software─ComQum, ORCA, and AMBER─using the same test ca
Molecular imprinting technology is a field where polymer technology is utilised to synthesise high affinity particles, much like antibodies. This project has dealt with the imprinting of the neurotransmitter molecules serotonin and histamine. Serotonin polymers were synthesised using methacrylic acid and acrylamide as functional monomers relying on hydrogen bonding for the imprinting effect. None
Syftet med mitt master projekt i industriell design vid IKDC var att utveckla och uppgradera produkten trygghetslarm. Detta larm skall kunna göra det möjligt för äldre och rörelsehindrade att bo kvar i hemmiljön, med tryggad kontakt till hemtjänsten när olyckan är framme. Bakgrunden till valet av projekt är bland annat personliga skäl, då trygghetslarm varit livsavgörande för några av mina släktin
The road haulage industry is a fundamental part of today’s society. The companies of haulage stand before a challenge, as the environmental and economic sustainability demands are increasing. The automotive industry tries to meet these demands by developing intelligent systems that will decrease the fuel consumption. The two systems, predictive controller and platooning, are two intelligent solut
This thesis compares Auto Regressive Moving Average (ARMA) and Generalized Auto Regressive Conditional Heteroscedacity (GARCH) models for three metal commodities. ARMA models have an unconditionally non-random and constant variance, which typically serves well in effectively representing homoscedastic data. The GARCH models feature variable variance that is non-random when conditioning on the past
Huvudsyftet med denna rapport är att förutsäga antalet spelare i nå- gon instans av DICE: s spelplattformar, t.ex. Battlefield 3 för PC, 15 minuter i framtiden. Denna förutsägelse kan användas av företaget vid köp av molnservrar on-demand för att visa dem hur mycket de behöver köpa. Flera olika prognosmodeller undersöks och utvärderas på historisk data från 2011 till 2015. En annan fokuspunkt är hThe main goal of this thesis is to predict the number of players in some instance of DICE’s gaming platforms, e.g. Battlefield 3 for PC, 15 minutes in the future. This prediction may be used by the company when buying on-demand cloud servers to tell them how much they need to buy. Several different prediction models are examined and evaluated on historical data from 2011 to 2015. Another focus poi
In the last couple of years it has become more and more common to use control theory in computing systems, for instance operating systems, web servers and databases. The reason for this is to make these systems more robust and stable. This is of interest because we today are more dependent on computing systems in our everyday life, and therefore put higher demands on them. A lot of focus has been
In this report we study systems governed by the Saint-Venant shallow water equations interacting with boundary conditions including control. We derive closed form formulas for the open-loop behavior. These formulas rely on first, second and third order approximations which are based on a perturbation that we develop. Properties of these solutions are studied and comparisons with existing non-linea
