Sökresultat

Massive MIMO has attracted many researchers’ attention as it is a promising technology for future 5G communication systems. To characterize the propagation channels of the massive MIMO and to evaluate system performance, it is important to develop an accurate channel model for it. In this thesis, two correlative models, i.e., the Kronecker model and the Weichselberger model, and a cluster-based m

Syftet med uppsatsen är att reda ut förekomsten av intertextuella och intratextuella referenser i Twin Peaks. Med detta menas de filmlanskaps som kommenteras i serien Jag försöker i texten kartlägga deras härstamning, beskriva hur de dyker upp i serien och förklara deras förekomst. Till sist avser jag att ställa referenserna i relation till Lynchs bakgrund. Även denna utgör en fond mot vilken seri

Abstract Metal oxide semiconductor (MOS) capacitor was fabricated on the InGaAs substrate with Al2O3/HfO2 gate oxide. InGaAs is one of the promising candidates for advanced applications which require the lower power supply and high frequency. The high-k films (Al2O3/HfO2) were formed by atomic layer deposition (ALD) as an alternative to silicon dioxide (SiO2) to proceed the scaling of oxide to low

Tidigare undersökningar har visat att inflödet av metaller till Lillsjön är högre än utflödet. Detta ledde till att följande studie fokuserades på metallinnehållet i Lillsjöns bottensediment för att utvärdera om den urbana omgivningen påverkar Lillsjön i negativ bemärkelse. Lillsjön är en populär badsjö belägen i ett rekreationsområde nära centrala Östersund. I avrinningsområdet finns mestadels skMetal contamination of lakes can bring negative effects to aquatic biota, and to the general health of the ecosystem. Urban discharge is a known source of common metals. In cold regions, snow disposal sites further enhances the risk of contaminating recipient lakes, due to accumulation of pollutants. The importance of this source is poorly known and is further investigated in this study. Metal con

Tre grustag undersöktes i nordöstra Tyskland, Kreuzbruchhof, Fritscheshof och Spargelberg. Syftet var att rekonstruera den senaste glaciala aktiviteten i området. Tolkningarna och således rekonstruktionen grundar sig till största delen på sedimentologiska och strukturella undersökningar. Kreuzbruchhof består mestadels av glacifluviala sediment med undantag för några mindre diamikta enheter tolkadeThree gravel pits near Neubrandenburg, NE Germany, were investigated - Kreuzbruchhof, Spargelberg and Fritscheshof. The investigated gravel pits are situated in an undulating kame landscape 150 km south of the Baltic Sea. The aim of this study was to reconstruct the Late Weichselian history (e.g. deglaciation of the Pomeranian ice sheet) of the area. Reconstruction was based mainly on sedimentolog

Skalning och modellering av en kromatografikolonn för rening av sockerlösningar. För att uppnå klimatmålen behöver fossila råvaror inom kemiindustrin bytas ut mot förnybara råvaror. Socker är en råvara med stor potential inom industrin, men är ofta förorenat med salter. Därför utforskas rening av sockerlösningar här. För att använda socker som förnybar råvara för kemiindustri behöver sockret oftaTo utilize sugars as a feedstock for renewable industries, the feedstock often needs to be very pure. This is due to ionic species contaminating the sugar feedstock being potent catalyst poisons in many cases. To remove ionic species from the sugar feedstock, it is dissolved and purified using packed ion-exchange columns. In this report, a lab-scale setup of a large scale ion-exchange setup was co

The study aimed at (a) investigated the ability of potential lactic acid bacteria (LAB) to ferment quinoa milk, and (b) formulating a method for producing fermented quinoa milk. To meet the objectives, Lactobacillus pentosus and Pediococcus pentosaceus two native bacterial strains were tested. Quinoa milk elaboration was optimized at laboratory scale by selecting an appropriate quinoa/water propor

Protection of humanitarian aid workers (HAWs) is a challenging task. There are various reports on the topic where much research seems to focus on traditional physical attacks and intentional violence against HAWs (security) rather than the accidental event risks (safety) or discussing it separately. These risks are usually defined by the organization’s security risk management holding the power in

As Climate Change increases the frequency and severity of wildfires in British Columbia, communities at the Wildland Urban Interface face escalating risks. This thesis explores the challenges and opportunities of community engagement in wildfire management in the city of Kamloops, one of the most fire-prone urban areas in British Columbia. Employing a single-case study design, the research is base

This master’s thesis maps and compares local literary networks within UNESCO’s Cities of Literature, with the aim of understanding how such networks are structured, what their functions are and how they are controlled and developed. Drawing on concepts from social network analysis and Bourdieu’s theories of social fields, capital and habitus, the study combines quantitative and qualitative methods

As the industrial, commercial, and domestic prevalence of Internet of Things networks grows, so does the search for viable solutions to decrease their energy consumption. One common solution is using a low-power proxy that can control the power state of the devices within the network. To evaluate such solutions, either implementations can be made and measured for energy consumption, or energy mode

To compete on the global market many companies need to undergo fundamental organizational changes. However, many companies fail to make successful transformations. To identify the factors that contribute to a successful transformation, some researchers have focused on a micro perspective and investigated employees’ characteristics and attitudes (e.g., organizational commitment, readiness for chang

This project was done for the company Beijer Electronics Products AB and the task was given by the hardware development department of the company. The project was about developing a concept proposal for a new generation operator panels. This was done to inspire the product developers at Beijer Electronics with innovative ideas before the actual operator panel development. More in detail the object