This work presents an observer design for grid current and capacitor voltage of voltage source pulse-width modulation (PWM) converters with LCL filter. Theoretical aspects including the mathematical LCL filter system observability, observer placement strategy and practical discretization implementation. It gives insight to mathematical modelling of the line filters dynamics. By the limitations of

This is a work on how financial crises affect political legitimacy. Assuming that legitimacy exists as part of an ongoing process that depends on the evaluations of the citizens, 12 different crises and following executive elections from 6 countries are studied to understand, how legitimacy/legitimation could be affected by a financial crisis. The research is conducted in two parts: Firstly, a the

There is an international agreement that Hazard Analysis and Critical Control Points, HACCP, is an established management system for food safety. The HACCP system supplies the food safety with confidence so that it can be effectively managed. It works as a tool to control and prevent hazards rather than to rely on end-product inspection and testing. EU hygiene regulations require that this system

The National Board of Health and Welfare together with the Public Health Agency of Sweden suggests that a reduction in income inequality could decrease suicide rates. The thesis aims at testing if this statement is accurate and if the influence of income inequality on suicides is different across age groups. The estimations are done using a panel dataset consisting of all Swedish counties for the

Denna kandidatuppsats i handelsrätt behandlar försäkringsavtalslagen efter de nya ändringarna som trädde i kraft den 1 januari 2006. Lagen ersatte den gamla försäkringsavtalslagen och konsumentförsäkringslagen, som numera utgörs av en gemensam försäkringsavtalslag. Uppsatsen behandlar i första hand försäkringsavtalets rättsliga reglering och har syftet att fungera handlingsdirigerande för försäkri

Author: Sigrid Fagerberg Title: The balancing act of particular attention. Hospital social workers work with children as dependents. Supervisor: Anders Olsson The aim of this study was to illustrate how hospital social workers can work with children as dependents where a parent or other adult with whom the child lives permanently has a serious physical illness or injury. More specifically its aim

In this study we investigate the impact of the lowering of the payroll taxes in Sweden, in 2007 and 2009. A fixed effect OLS model is used to evaluate the effects. The model estimates the effects of the payroll tax cut in five different regions between 2001 – 2011. The general results from the estimations show that the payroll tax cut did create jobs however the effect was small and the reform was

Problem: Handel har länge fyllt en viktig funktion och fungerat som en drivkraft för svenska stadskärnor. Under senare år har däremot allt fler vakanta butikslokaler identifierats i skånska stadskärnor. Anledningar till detta anses vara flera men fastighetsbolags handlingar och agerande är återkommande förklaringar i media. Bristande forskning inom fastighetsbolags orsaker till handlingar och dess

Detta är en fallstudie som beskriver hur handläggarna på kommunen och arbetsförmedlingen i Åmål arbetar tillsammans och samverkar, utifrån etableringslagen för att snabbare ge stöd för nyanlända att komma in i samhället och få en egen försörjning. Arbetsförmedlingen övertog samordningsansvaret 2010-12-01 med att ordna praktik under de två första åren för nyanlända som har uppehållstillstånd. Kommu

Today, the most commonly used energy storage device in embedded systems is batteries. But unfortunately, batteries are associated with short lifetime. By introducing Electrochemical Double-Layer Capacitors (EDLCs) as an alternative power source, the lifetime of the backup energy source can be significantly increased. The lifetime is dependent on two predominant factors; temperature and voltage. T

Crime is one of the most harmful social problems throughout the world suggesting that the topic of crime is one of the most important research areas within the field of economics. This thesis attempts to shed some new light on the relationship between crime and gross domestic product (GDP) in Sweden. More specifically the aim of the paper is to look for the existence of a cointegration relationshi

In the last decade a new and alternative source of geospatial data has become available, so called Volunteered Geographic Information (VGI). Private individuals voluntarily collect large amount of geographic data for a joint project. This data are usually free under certain licence restrictions. One of the most well known examples of VGI is the OpenStreetMap (OSM) project. Due to its increasing p

Vilken roll Hippocampus har i det episodiska minnessystemet är hett omdebatterat. En nylanserad teori, Competitive Trace Theory, stipulerar att strukturen ”kontextualiserar” minnen genom att skapa nya, multimodala minnesspår vid varje reaktivering av dem. Alla olika minnesspår har en gemensam, överlappande komponent samt en unik icke-överlappande komponent, och spåren konkurrerar om att slutligenThe role of the Hippocampus in episodic memory has been fervently discussed for a long time. A new model, titled ”Competitive Trace Theory”, holds that the role of this temporal lobe structure is to “contextualize” memory. This is achieved by the establishing of new, multi-modal memory traces every time the memory is reactivated. These distinct memory patterns all share a mutual component of the m

Uppsatsen undersöker utrikes föddas pensionsinkomster från det reformerade pensionssystemet på basis av födelseland eller födelseregion. Detta görs genom att beräkna en uppskattning av de avlagda pensionsavgifterna för en genomsnittlig migrant från de respektive grupperna med användning av tvärsnittsdata. Tidigare studier har använt sig av longitudinell data och visat att det råder skillnader mell

The aim of this thesis is to map the Swedish literary criticism of 2013 with regard to gender equality, and to discuss how equality issues affect the canonization of literature. The study includes a statistical overview of gender representation in literary reviews and a qualitative analysis of the literary debate in Sweden. This thesis also uses Michel Foucault’s discourse analysis and Yvonne Hird

The aim of this study was to research how some female social workers in India, from a professional view, viewed the woman’s role and situation in India, since there are various laws against gender inequality. Research has shown that the implementation of the law, PWDVA, has not been sufficient, as some women still aren’t aware that the law exists. We wanted to find out if they, as professionals, t

Purpose The purpose of this thesis is to contribute with knowledge on consumer identity in a social media setting and how companies can utilize this behaviour for effective marketing. Method The thesis adopts a constructivist perspective on how we interpret our interviewees, the reality and our own research role. The interviews have been inspired by both ethnographic and a phenomenological appro

In this paper, I have attempted to understand how innovative education programs to reduce drop-out rates among girls are conceptualized at the inception level. I have also tried to study how these programs are perceived at the ground level through participant observation of a case. I observed the implementation of an innovative education program focused on increasing life-skills among girls throug