Batterier möjliggör mer solel än elnätet tidigare klarat av En ökad andel solenergi i elnätet ställer nya tuffa krav på det befintliga nätet. I det här examensarbetet har möjligheten att undvika nätförstärkning genom att istället installera batterier på väl valda platser i nätet undersökts. Med hjälp av lösningen kan mer solel än nätet tidigare klarat av installeras. Historiskt sett har el produThis thesis addresses overvoltage issues in weak low voltage grids caused by large solar power production. The suggested method is using PI controllers to control voltage. This is done by using battery energy storage systems (BESS), designed to absorb active power during these times and thereby limiting the voltage rise. This could enable faster integration of solar power and a reduced demand for

Med hjälp av netnografisk metod undersöker jag fenomenet tematiska köp-och säljgrupper på Facebook. Tematiska köp-och säljgrupper kan förklaras som nätverk bestående av medlemmar som dels köper, byter och säljer varor med varandra och dels interagerar kring ett gemensamt intresse för vissa varor och märken. Studien tar avstamp i den svenska köp-och säljgruppen Labels we love (svenskt/danskt/snyggt

This thesis proposes a method for how to find duplicated 3D points in a single Structure from Motion point cloud. Together with related articles, this forms a possible solution to the loop closure problem. The proposed method works by first selecting candidate pairs of 3D points by comparing BRIEF descriptors of all points. The second step consists of using RANSAC to select the best out of many

Although the EU has substantial influence over how and with what Swedish municipalities work, the national level still tends to be the point of departure for the EU cooperation and analysis thereof. This qualitative single case study intends to abandon that tradition through investigating the consequences of EU projects at the local administrative level. Due to a lack of earlier research about the

One of our times most significant challenges is the threat to climate change and global warming. This research embarks on a novel pathway. The theoretical framework Capital Approach Framework is used within political science studies to analyse the transition towards sustainable development on a local level in Sweden. The aim is to answer the research question: "What factors in local governanc

The topic of environmental issues, in relation to clothing consumption, was researched with the intention of contributing to the lessening of its negative effects. The conclusion was that an extended amount of use would result in less need for new production, where most of the emissions come from, thus making the system more efficient resource-wise. To achieve this the product designed is the out

In the face of climate change, governments in the Global North have decided on various decarbonisation plans. With the transport sector causing more than a quarter of the global greenhouse gas emissions, its decarbonisation has become a central debate. Yet, plans for a sustainable mobility system are largely focused on local and regional scales, neglecting the global entanglements of the supply ch

Klimatkrisen är en av de största utmaningar som mänskligheten någonsin stått inför och mycket krävs för att bevara klimatet. Många forskare letar lösningar för att stävja de värsta effekterna av ett förändrat klimat. Ett av de mest aktuella problemen är att förhindra eller sakta ned den globala uppvärmningen eftersom det rapporterats att vissa effekter är oåterkalleliga när de väl trätt i kraft, sThis thesis report on an investigation into the applicability of mid-infrared degenerate four-wave mixing (IR-DWFM) as a method to detect N\(_2\)O in ammonia flames. DFWM has previously been used for concentration measurements on other molecules, but has never, to the author's knowledge, been applied to measure N\(_2\)O in ammonia flames before. Through measurements in gas flows at different t

Tavistockinspirerade grupprelationskonferenser utvecklades ur överlappande men olika teorier. Dessa är psykoanalytiska teorier, teorier om organisationer som öppna system och teorier om upplevelsebaserat lärande i organisationer. Tavistockinspirerade grupprelationskonferenser är först och främst en metod för lärande om organisationer. Syftet med studien var att få insikt i före detta konferensdeltTavistock-inspired group relations conferences (GRCs) originated from overlapping yet distinct theories. These are psychoanalytic theories, theories of organizations as open systems, and theories of experiential learning in organizations. Tavistock-inspired GRCs are, first and foremost, a method of learning about organizations. The purpose of the study was to gain insight into the experiences of f

As the 20th century turned into the 21st, and cooperation characterized Europe and the western relationship with Russia, the aim and ambition for Swedish defense policy and the development of the Armed Forces was, that in case of a deteriorated security situation in Europe, Swedish politicians would have strategic warning ten years beforehand in order to adjust the military capabilities. The aim o

Social workers’ judgements of sexual abuse among siblings The aim of this study was to investigate which factors relating to 1) the child and family and to 2) the respondent have an impact on social workers’ professional judgments about sexual sibling incest. The study was carried out in the form of an experimental vignette survey (a factorial survey), in which the respondents made judgements abo

The study aimed to research some social workers in the department of children and families services' view of the case “Lilla hjärtat” and the dilemmas of the case. This case, a 4-year old girl who died in the care of her parents, is well known in Sweden through the media, and the case has led to a public inquiry. The study was a case study based on seven semi-structured qualitative interviews

Bakgrund: När smittsamma sjukdomar sprider sig över hela världen definieras detta fenomen som en pandemi. Det leder till en ökad arbetsbelastning för sjuksköterskor då fler individer kräver sjukvård. Syfte: Studiens syfte är att beskriva sjuksköterskans upplevelser av arbetsmiljön under pandemier. Metod: En icke-systematisk litteraturstudie som inkluderar nio vetenskapliga artiklar, varav tre kval

Domestic violence against women is a world health issue as well as a public health problem in Sweden. The aim of this study was to gain a broader understanding of how women’s identities are affected by being exposed to domestic violence. Furthermore, the aim was to comprehend what role identity has in the women’s ability to leave the relationship. To gain this understanding Goffman's theory of

This thesis analyses the effect of the prevalence of family planning on the three dimensions of the Human Development Index (HDI) in low income countries. The sample consists of 75 countries with annual data from 1990-2018. Empirics indicate that falling fertility rates, due to increased availability and use of family planning, should increase GNI per capita, education and health. The outputs from

There have been much effort during the last decade towards resilience of critical infrastructures, but the research differs and resilience within critical infrastructures is still seen as a relatively new and unexplored area. The purpose of this work is to provide an understanding of how critical infrastructures in Sweden work with resilience. The objective is to create a general framework that ca

In the Nordic countries, an increasing part of the population consists of migrants from various backgrounds. Naturally, it is important to investigate what can be done in order for these migrants to integrate successfully. Previous research shows that some of the fundamentals of integration are trust and the sense of collective identity. Therefore, it is important to further investigate the compon

This thesis provides a historiographical account of the multiple socio-ecological transformations that occurred in Västernorrland, Sweden, during the second half of the 19th century. By engaging with ecological Marxist thinking, such as the world-ecology framework proposed by Jason W. Moore, these transformations are conceptualised as part of a broader movement of commodity frontiers. Drawing upon