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Dagens vägskyddsanläggningar är baserade på gammal reläteknik och är byggda på liknande sätt som på 1940-talet. År 2014 påbörjades projekt-Alex av Trafikverket med mål att byta ut dagens vägskyddsanläggningar mot en mer modern och driftsäker anläggning. Detta genom att uppdatera tekniken i vägskyddsanläggningarna till ett databaserat system som ska standardiseras och inte vara så anläggningsspecifToday's level crossing security systems are based on old relay-based technology and have been constructed in the same way since the 1940s. In 2014, Project-Alex was initiated by Trafikverket to replace the current level crossing security systems with a more modern and reliable system. It is done by updating the technology in the level crossing security systems to a computer-based system that i

This thesis examines North Korean migrants’ agency over the objective constraints caused by their categorization as ‘defectors’. By analyzing the direct accounts of three North Korean artists residing in South Korea, this thesis explores the mechanisms they employ to develop their artistic career in a context where their identity is labelled. Current literature on North Korean migrants’ social ada

In 2015, about 33 568 unaccompanied children crossed the Swedish border and applied for asylum. Most of these asylum seekers were from “failed states” so they lacked documents that can prove their identity. For the Swedish Migration Agency it is very important to determine an asylum seeker’s age because whether the individual is an adult or minor affects the outcome of their application. Therefore

In this work, which is to be used as a supplementary example to the educational literature in Automatic Control, at LTH, I have chosen one reactor, in the group of chemical reactors, for the examination. The chosen reactor is the continuos-flow, autothermic, nonadiabatic stirred-tank reactor. Required cooling of the reaction mixture is achieved by letting the reactor-tank be surrounded by a coolin

Block copolymer lithography is a very promising candidate for nanoscale fabrication and is economically viable. It provides a high resolution, inexpensive, and straightforward approach to nano-size patterning. In this thesis, fundamental concepts and theories of block copolymer lithography are introduced. A well-controlled dynamic solvent vapor annealing chamber is built, and the best annealing co

The rising levels of carbon dioxide in the atmosphere is one of the most pressing matters right now. Before the industrial revolution, the atmosphere had a concentration of 0,02% which has increased to 0,04% due to human progress. This increase results in melting glaciers, ruined farmland, and more unpleasant consequences. Counter measures of today involve moving away from fossil fuels and relyin

Surrogatarrangemang har varit kraftigt debatterat i Sverige. I dagens läge finns ingen reglering på området. Surrogatarrangemang sker dock ändå genom att svenskar åker utomlands eller utför heminsemination. Detta innebär att barn tillkommer men det finns ingen reglering som hanterar dess rättsliga förhållanden. Syftet med uppsatsen är att undersöka om en framtida reglering av altruistiskt surrogaSurrogacy arrangements have been heavily debated. Today, there is no legislation regarding surrogacy arrangements in Sweden. However, the phenomena still take place by Swedes going abroad or performing private insemination. This leaves the legal situation for families with surrogate-born children uncertain. The purpose of the thesis is to examine whether a future regulation of altruistic surrogat

As society becomes more ecologically conscious there is a push toward the use of materials with a smaller environmental burden, one of these materials is glulam (GLT), which has gained a lot of traction in recent years not only for ecological reasons but for its ease in manufacture, transport, noise dampening, etc. The focus of this project was to evaluate the influence of different joint configu

Studien syftar till att lära mer om hur familjeterapeuter arbetar med barns inkludering i familjeterapi och hur det påverkar familjeterapeuten känslomässigt. Vi har använt oss av en kvalitativ metod inspirerad av fenomenologiskt synsätt med fokusgrupper som teknik. Analys av data har gjorts utifrån innehåll, vilket resulterade i två teman; Hur terapeuten inkluderar barn och hur det påverkar terapeThe study aims to learn more about how family psychoterapists, working with family therapy with participation of children and how this affects the family therapists emotionally. A qualitative method inspired from a phenomenological approach with focus groups as the technique. Data was analysed content analysis which resulted in two themes; How therapists include children and how it affects the the

In this thesis I argue that the absence of energy utilization as a component in contemporary economic history and economic growth theory severely limits our understanding of economic development as a process. Although energy is not sufficient to explain the unprecedented expansion in the world economy since the industrial revolution, it is however absolutely necessary. Technological progress remai

This thesis examines a project that has been conducted at a software development company. The aim is to investigate which problems firms of this kind faces performing projects. We choose a theoretical frame consisting of a modern view on how to manage projects. The view argues that the management of each project has to be adapted to the situation at hand. This theory is divided into two separate s

Salinisation is a global issue which leads to desertification and soil degradation and exposure to salt is also known to inhibit microbial activity and plant growth. This study was conducted to determine the influence of salinity on microbial activity of a non- saline soil. By using Salt Induced Community Tolerance (SICT) concept I found that microbial community tolerance to salt can be induced in

En kopparlödd värmeväxlare används i fjärrvärmeapplikationer. Ett samhälle under ständig utveckling har lett till en strävan att förbättra dessa produkter, men också till en strävan att minska kostnaden vid både tillverkning och utveckling av nya, effektivare produkter.This Master Thesis has been conducted with the aim to investigate the mechanical performance of an isolated copper braze joint. The mechanical performance of the copper brazed heat exchanger is to a great extent determined by the properties of the copper braze joints. It is not yet exactly known how different parameters such as the weight of copper per joint, plate material composition and furnace

ABSTRACT The genetic characteristics of two soft tissue tumors were investigated in the present study: pleomorphic hyalinizing angiectatic tumor (PHAT) and solitary fibrous tumor (SFT). PHAT is a benign soft tissue tumor of uncertain cellular origin and lineage of differentiation. Although PHAT is still poorly characterized at the genetic level, one reported case has shown a potential genetic ove

Från början av 1990- talet har straffrättsbedömningen gått från att vara inriktad på allmän prevention och individuella omständigheter till att vara kopplad till brottet och vad som anses vara rättvist. En rättvisebedömning kan skilja sig på många sätt, därför finns det strukturer för domstolen hur handlingar ska värderas och vilka omständigheter som ska anses vara av betydelse. En bedömning av stFrom the beginning of the 1990 - century penal assessment went from being focused on general prevention and individual circumstances to be linked to the crime and what is considered fair. There are structures on how the court should value the documents, and which factors that should be considered to be of importance, thus, a fair assessment can differ in many ways. An assessment of the penalty fo

Due to concerns from a wide variety of stakeholders social and environmental performance throughout the supply chain has become very important. Global corporations have a plethora of choices of how to structure and communicate their sustainability work in the supply chain. The objective of this research is to investigate how audit and monitoring frameworks attempt to increase transparency, improve

Pore water pressure is defined relative to atmospheric pressure and it is cero kPa at the water table. Under the water table the pore water pressure rises linearly at a hydrostatic pressure distribution and above the water table it sinks. How the pore water pressure profile above the groundwater table develops in practice depends on the soil water content. The relationship between water content an