Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

Several theoretic and environmental psychological models establish a connection between the environment and the reactions of humans and the research support that there is a mutual influence between individual, environmental and behavioral factors. You often assume that a person both can influence and be influenced by the surrounding environment. This is evident, but it is less obvious how a given physical design influence people?s immediate behavior in the city. The aim of this study was to investigate if the physical design of a place influences people in an urban environment and to investigate how the behavior is influenced.

Detta examensarbete har gått ut på att få en inblick hur det kan vara att jobba på ett företag inom postproduktion, att inte ha full kontroll över vilket material jag jobbar med och på vilket sätt. I detta fall handlar det även om vilken programvara jag förväntades använda. I Arbetet kommer jag att gå igenom hur det har varit att gå från ett program, jag känt mig väldigt bekant med, till ett annat som jag aldrig använt tidigare. Arbetet kommer även att ta upp begreppet postproduktion och vissa av de yrkesroller jag kommit i kontakt med under projektet..

The study presented here is about how to make the special needs user who has a profound intellectual disability and additional disabilities more involved in their implementation plan. Based on a life story interview the study aims at analyzing perceptions of procedures to enhance special needs users? influence. The method used in this study was a qualitative research approach as an overall approach in order to use a narrative method where life history is the method. The focus has been to study a part of an individual life history - a specific domain in the life of the interviewee?s working career.

Denna slutreflektion kommer att beskriva planeringen och utvecklingen av en alternativ sorts arbetsmetod kallad Cloudmetoden, vilken lämpar sig för mindre arbetsgrupper som utvecklar digitala medier (i vårt fall spelproduktion). Slutreflektionen kommer att innehålla beskrivningar om vilket typ av problematik som gjorde att vi valde att skapa ett eget sätt att arbeta. Vi diskuterar och jämför vår arbetsmetod med redan existerande projektmetoder inom digitala spel. Vi kommer nämna de produkter som har skapats med hjälp av vårt arbetssätt och hur vi arbetade med dessa. Nyckelord: Cloudmetoden, spelproduktion, projektmetod, alternativ, digitala medier.

This thesis is an investigation of Iranian immigrants and their use of libraries in Sweden. It isbased on a combination of a qualitative and a·quantitative method.Using a qualitative method, I give an outline of the history of lran from ancient times up to the present, as well as the different ethnological groups in Iran and their cultures. The main objective of this part is to clarify the contrasts between Iranian and Swedish cultural, social, linguistic and family structures, and also the characteristics of the crisis that most immigrants go through on their arrival in the new country. The qualitative method also involves structured telephone interviews with eight highly educated Iranians.This method was supplemented by a quantitative study through questionnaires of the attitudes· of lranian immigrants to libraries and reading. Iranians in Sweden turned out to be frequent Iibrary users.

This paper aims to examine how the beginning of newly examined teacher?s professional life might look like and also highlight the obstacles that might occur during the induction, the time during which the student becomes the teacher. The paper also discusses what support that is available for newly examined teachers in schools concerning the possibility to have a mentor and a period of introduction.A qualitative method was used for this study and interviews were made with new teachers who shared their experiences from the beginning of their careers. The results from the interviews were also discussed from the points of view of the study?s theories concerning different leadership styles.Two handbooks for new teachers, aiming to support them in their new professional role were compared.

Compressed air is an energy source that is widely used in today's trucks and buses.Compressor located next to the engine supplies the pneumatic system with the compressed air and is lubricated with the engine oil. Some of the oil follows the air flow in both liquid and solid phase. The solid phase, namely the carbon particles are created due to the high temperature in the compression chamber.Oil- and particles carryover softens and destroys the rubber material in the air valves and disturbs the mechanical function of various components in the pneumatic system. In order to reduce oil- and particles carryover is an Air Processing System (APS) set downstream the compressor.No method for establishment of oil- and particles carryover from the compressor exists at the moment. Therefore the filtration efficiency of APS is currently unknown.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

Syftet med knowledge management är att försöka omvandla de anställdas individuella kunskap till organisatorisk kunskap. Att lokalisera och registrera vem som innehar kunskapen, t ex genom kunskapsprofiler, kan underlätta omvandlingen och kodifieringen av kunskapen. I kunskapsprofilen kan den anställdes mission, utbildning, arbetsrelaterade kunskap, hobbyer, kompetenser och färdigheter, personlighet samt professionalism ingå. Syftet med vår uppsats är att belysa nyttan med kodifiering av kunskap i form av kunskapsprofiler. Vi har utfört en fallstudie hos tre bemanningsföretag och våra resultat visar att bemanningsföretagen har system för i huvudsak lagring av vilka kompetenser de anställda besitter.

The school is responsible to make sure that each students´ individual needs are met as well as that the lessons are suitable for all students´ ability. As this is the case it is very interesting to evaluate how this is done in reality. The purpose with the study has been to shed light upon what different methods teachers in various schools use in order to individualize their teach­ings. Are their obvious differences in the way teachers work with individualization and how does this affect the students? The teachers in the different schools provided me with informa­tion on how they work in order to teach, stimulate and motivate well achievers as well as stu­dents who find school more difficult.

What is the?self? and to become ?one-self?? To resolve this questions possibility I´ve been using the philosopher Søren Kierkegaard metaphysic paradoxes. This essay about the ?self? shows the reader the difference between describing a transcendent and immanent phenomenon and if it´s possible to become or to not become ourselves. The process is a key of the ?self? which Kierkegaard explains the ?self? in and for it-self.

Denna uppsats avhandlar begreppet sponsring och vilka prioriteringar sponsrande företag gör när de väljer sponsringsobjekt. En jämförelse har gjorts mellan kultur- och idrottssponsorer.Med en kvalitativ ansats har tre företag som ägnar sig åt kultursponsring (Vattenfall, SAS och IKEA), samt fem företag som sysslar med idrottssponsring (AXA, Svenska spel, Agent 03, Adidas och ICA), undersökts för att kunna göra denna jämförelse. Samtliga intervjuobjekt är belägna i Stockholm.Resultatet av undersökningen har tydligt visat att Idrottssponsorer prioriterar exponering och en naturlig koppling mellan sponsorobjektet och den egna verksamheten. Kultursponsorer prioriterar associationer till värden som bildning och kulturbevarande för att skapa goodwill, samt goda relationer till stora kunder och anställda..

The project has sprung out of my imagination. I wanted to find out what happened to my creativity, and my way of making product design if I used the method of putting myself into a fictive world. The project has taught me to rely on myself and my knowledge as a designer.I have made a chair which closes out sounds and gestures in public places. A chair which provides you with peace and quiet in a busy environment..

Preservation of cells and tissues by freezing at temperatures below 70°C has led to new possibilities for the storage of germ cells for fertility preservation. During the freezing process problems might occur, the greatest being ice crystallization which can cause membrane destruction and thus cell death. To minimize this risk, solutions that reduce the freezing point can be added to reduce crystallization and increase survival rates. These solutions are called cryoprotectants. The best method for freezing is still not known.The aim of this study was to analyze the effect of various parameters on the survival rate of human semen frozen with liquid nitrogen.