Sökresultat

I Sverige idag har vi ett elkraftsystem som befinner sig i förändring. Med utgångspunkt i de uppsatta energi- och klimatmålen har nyttjandet av stamnätet börjat förändras med följder för underliggande regionnät. Situationen är speciell då dessa två nät är hårt parallellkopplade till varandra, men drivs av olika företag. E.ON som regionnätsägare i södra Sverige märker av att i många avseenden drabbIn Sweden today we have an electric power system which is changing. In context of the set energy- and climate goals the use of the transmission grid has started to adjust with consequences for the underlying sub-transmission grid. The situation is special since these two grids are firmly interconnected to each other, but are run by different companies. E.ON who is the operator of the sub-transmiss

To ensure safety on upper stage rockets, the fluid dynamic phenomenon known as sloshing in the liquid propellant tanks needs to be understood. CFD is a relatively cheap tool, but studies by Schmitt [7] suggest that models currently used for simulations do not predict the flow behavior.To verify computational models, experiments are setup on a cylindrical tank. The time for thefluid to become stead

Abstract Acknowledging the macro- and microeconomic importance of foreign direct investment (FDI), this paper aims at examining the determinants, in particular how the agglomeration forces determine the inward FDI in Africa. A comprehension of these determinants is important in order to maintain the positive development and improve the performance of attracting FDI in Africa. Results from my cross

This report covers a project for the Division of Product Development at Lund University to build and further develop a plastic shredder. It was based on open-source blueprints from the Precious Plastic machine series, a nonprofit project by Dave Hakkens to reduce plastic waste. Its purpose is to shred common plastic waste so that the shreds can be remelt to create new products by students in the s

‘Bread from Scratch’ is a reaction to the fact that many people don’t know how food is made anymore. Fast foods and other kinds of processed foods determine our daily life. Affected by industrialised food production and peoples eating behaviour, the knowledge of basic food production slowly disappears. Bread is one of humans oldest foods and even today it is one of the most essential and univers

In the aftermath of the Deepwater Horizon oil spill of 2010 the spill mitigation response focused heavily on coastal protection, a method recommended by government scientists—despite the fact that the majority of the spill was contained in the water column and never threatened the coast. A few months into the spill, the response policy shifted to include deepwater dimensions, something independent

Through hydrogenation of glucose to sorbitol followed by hydrogenolysis of sorbitol to glycerol a pathway to produce bio propane from lignocellulosic material has been confirmed. A wide range of catalyst was tested, in an autoclave batch reactor, to scout the activity of catalysts already proven active, according to previous literature, as well as catalysts not mentioned in literature for the spe

Personalrörligheten på arbetsmarknaden är viktig såväl i ett långsiktigt perspektiv för landets ekonomiska utveckling och tillväxt som för enskilda arbetstagares upplevelse till handlingsutrymme och hälsa. I denna uppsats diskuteras de tre stora och äldre tjänstepensionsavtalen ITP2, KAP-KL och PA16 Avd2 utifrån vilka konsekvenser dess likheter och skillnader har på arbetstagares möjlighet och vilMobility in the labour market is important, partly in a long-term perspective for a country's economic development and growth, but also for the individual employee's experience scope for action. In this essay, the three major occupational pension agreements ITP2, KAP-KL and PA16 Avd2 are discussed in terms of their structural similarities and differences by focusing on the consequences for

Dark Matter is one of the biggest mysteries in physics of our time, with an overwhelming amount of evidence for its existence but lack of direct observation (at time of writing). The focus of this thesis is to reimplement an ATLAS analysis used for Dark Matter searches in the mono-H(bb) channel, and use that analysis in order to study the signal of a new particle called Dark Higgs. The Dark Higgs

This thesis considers bias when studying behaviours in a Cox proportional hazards model. In Cox proportional hazards regressions and cohort studies in general, measurements are often made during a limited period of time. Behaviours may, however, change rather dramatically over time, and if these changes are unknown, they will distort the results in the regression models. We study this problem in t

This project started out as a test, and a request, an invitation to participate in a highly singular architectural project. Located in the western harbour of Malmö, the OHBOY! bike hotel belongs to an ambitious and ground-breaking approach at redefining the way we design cities and map- out our priorities, emphasizing mobility and making an active effort at minimizing our impact on the city’s tra

This thesis empirically quantifies the impact of promotions on store visits in the Swedish grocery retailing sector with nationally representative panel data on household purchases of ground coffee. Using the potential outcomes framework, the impact is calculated as the difference between outcomes with promotion and their counterfactuals estimated with two regression models. The first model is an

No site, no client and no program, instead digitally fabricated physical models were the driver of this project. The method of research-driven design liberated the project from functional and performative demands and opened up for other questions to be raised. The two things that informed the design were the construction process and the material. The material used is clay. With its liquid form, pl

This Master's thesis project aims to explore the possibility of a mixed simulation environment in which parts of a software model for emulating a hardware design may be swapped with their corresponding RTL description. More specifically, this work focuses on the sofware model for Arm's next-generation Mali GPU, which is used to understand system on chip properties, including functionality

The purpose of this master thesis is to investigate the opportunities and challenges of introducing transport plans. By studying some of Sweden’s municipalities' transport plans, the prospect is to identify success factors and critical factors in the process that can be applied in the process of developing transport plans in smaller municipalities – like Vetlanda municipality. The study conduc

Syftet med denna uppsats är att undersöka om utvecklingen av sociala medier som rekryteringskanal kan ha en positiv inverkan på matchningseffektiviteten på arbetsmarknaden. Uppsatsen bearbetar data från SCB och Arbetsförmedlingen och använder Beveridgekurvor tillsammans med matchningsfunktioner för att beskriva matchningseffektivitetens utveckling sedan år 2000. Data från Svenskt Näringsliv använd

UV irradiation is getting increasingly popular as a disinfection step in drinking water production. Ringsjöverket, a drinking water treatment plant in Sweden installed a full-scale UV aggregate in December 2016. However, the effect of UV irradiation on drinking water has mainly been tested on specific pathogens in labscale environment. Heterotrophic plate counts are often used when analyzing drink

Bovine milk contains several enzymes which can affect the quality of milk. One of these enzymes are lipases which hydrolyse the triacylglycerides in milk. In this process off-flavours, odour and product defects are generated. By controlling the enzymes activity, milk quality can be increased and therefore milk and dairy products can be stored for a longer time. This is desirable since the world de

Within the last century, a continuous decline in global insect pollinator populations has been observed. The loss of pollinating insects is not only important for their conservation value in itself, but entails far-reaching consequences of pollination deficits. This development is mainly associated with anthropogenic environmental disturbances, leading to fragmentation and loss of natural habitats