Sök:

Sökresultat:

165 Uppsatser om Flicker paradigm - Sida 1 av 11

Förändringsblindhet på webbsidor

Forskning kring förändringsblindhet har hittills undersökt hur fenomenet gör sig gällande i naturliga situationer och vanliga visuella scener. Denna undersökning syftar till att testa hur förändringsblindhet framträder vid användning av webbsidor samt att undersöka vilka typer av förändringar som är lättare respektive svårare att upptäcka på dessa. 20 studenter testades med datoriserade bildspel utformade i fyra kategorier av förändring. Rensinks Flicker paradigm användes som förändringsmetod. Resultaten visade att; det var lättare att upptäcka en förändring som inte består av en bild av en person än en med en bild av en person och det är svårare att lokalisera en förändring på vänster sida än på höger.

Undersökning av elkvalitet i distributionsnät med omfattande vindkraftselproduktion

The goal for this master thesis project has been to investigate the power quality in adistribution grid, which has a high fraction of dispersed power production due towindmills. The study has been done on a grid in Laholm South of Halmstad, whereapproximately 45 windmills are connected to the distribution grid owned by SHKEnergi. The investigation has been focused on to two radialy fed 20 kV lines, wheretwelve windmills are connected.Voltage variations have been studied by creating a model of the grid in the simulationprogram SIMPOW. The largest deviation that has been found in any point of the gridis ±1.9 % of the nominal voltage. This deviation is a result of varying powergeneration from the windmills and the voltage regulation at the connection point ofthe line.

Värmning av avloppsvatten med spillvärme för att förbättra kvävereningen -Temperaturens inverkan på kvävereningen

The goal for this master thesis project has been to investigate the power quality in adistribution grid, which has a high fraction of dispersed power production due towindmills. The study has been done on a grid in Laholm South of Halmstad, whereapproximately 45 windmills are connected to the distribution grid owned by SHKEnergi. The investigation has been focused on to two radialy fed 20 kV lines, wheretwelve windmills are connected.Voltage variations have been studied by creating a model of the grid in the simulationprogram SIMPOW. The largest deviation that has been found in any point of the gridis ±1.9 % of the nominal voltage. This deviation is a result of varying powergeneration from the windmills and the voltage regulation at the connection point ofthe line.

vindkraftens påverkan på elkvaliten

This thesis concerns how the power quality in the grid is affected by the connection of wind power plants. As things are at present, Fortum Distribution AB has a number of wind turbines and wind parks connected to the own grid. As the pressure on building and connecting additional wind power is increasing, so is also the interest of how the already existing wind power generation affects the power quality in the nearby distribution grids. The study is performed by direction of Fortum Distribution AB and is limited to the 10 kV/40 kV-grid in Bohuslän, Sweden. The methods for calculation of power quality are compared to the results of a number of measurements.

"Att orka vara själavårdare" : En jämförande studie av copingresurser i pastoralkliniskt och kontextuellt själavårdsparadigm.

This study aims to find coping resources in two different paradigms of pastoral care using coping theory from the psychology of religion. The intention is to find coping resources that are functional coping strategies to help priests and chaplains in their work with pastoral care. The research questions are: What coping resources can be found in the pastoral clinical paradigm and the contextual paradigm? What are the differences and similarities? The method used is template analysis style where the theories form a framework for the material used to analyse in this study. The theories used for this study are religious coping theory and pastoral care theory.

Marknadsföringsdisciplinens rådande paradigm idag  : Goods-Dominant Logic, Service-Dominant Logic eller något annat?

This qualitative research is a contribution to the ongoing debate among marketing researchers regarding if there is a dominant paradigm and viewpoint of marketing and which one is the most appropriate. In this study current views of marketing are identified and then compared against the older Goods-Dominant Logic of Marketing and Vargos? and Luschs? alternative Service-Dominant Logic of Marketing. The trends that have been observed are situated in the framework of Thomas S. Kuhn?s philosophy of science.

Värmepumpars inverkan på elkvaliten

Modern technology and fast development of heat pumps, the hunt for savings in energy consumption and the strive for environmentally friendly energy sources, convenience, and financial profit, have made heat pumps a reasonable alternative for the heating of houses.When the heat pump starts it will consume a considerable amount of current, which may result in a short-lived voltage-drop if the power grid is weak compared to the start-up current.The company Fortum Distribution which owns and administrates electrical network is interested in an investigation that deals with heat pumps affect on the quality of electricity.The purpose of this investigation is to study fast electrical fluctuations (flicker) as a result of start-up currents for single as well as multiple heat pumps on the same electrical station and from this evaluate whether there will be any problems installing heat pumps..

Forskardebatten kring 1809 års regeringsform- Forskares påverkan av rådande historie- och statsvetenskapliga paradigm

Forskardebatten kring 1809 års regeringsform har tidigare inte ägnats mycket uppmärksamhet, och då har det varit en snäv fokusering kring forskningen kring regeringsformens ursprung. Uppsatsens syfte var att belysa debatten i ett bredare perspektiv, där såväl debatten kring regeringsformens ursprung som dess följder lyfts fram. Syftet var också att placera forskarna inom historievetenskapliga och statsvetenskapliga paradigm. Utifrån delar av Törnebohms och Odéns byggstenar analyserades avhandlingar och artiklar för att kunna placera forskarna inom de olika paradigmen. Undersökningens källmaterial utgjordes av åtta forskares avhandlingar, och i vissa fall artiklar.

Medvetandets anatomi. Antonio Damasios avtryck i svensk mylla

This paper aims to explore the reception in Sweden of the work and ideas of neuroscientist Antonio R Damasio, expressed in his four published books. The material used is mainly articled and reviews published in Sweden between 1995 and 2011 regarding Damasio?s books. To analyze the reception, paradigm theories by Kuhn, and Bourdieu?s ideas regarding field, habitus and capital has been used.

Mekanisk integration av en IR-detektor i en Stirlingkylare

The master thesis ?Mechanical Integration of an IR-detector in a Micro Cooler? has beenperformed at FLIR Systems AB in Danderyd. FLIR Systems is a world leader in the design,manufacture and marketing of thermal imaging camera systems.The thesis project is divided into to two areas, Production Method and Noise.The Production Method concerns the positioning of a detector on the cold finger within the IRcamera.The detector has to be positiond with very high accuracy at the center of the cold finger,so it can be placed in line with the optical axis to avoid movement of the picture during zooming.The positioning of the detector is at present done with the help of specially designed guides on aplate on top of the cold finger. The design workes well but the special machining needed for thisplate is very expensive.The goal concerning the production method was to derive a new more cost effective method forthe assembling and positioning of the detector on the cold finger by replacing the guides on theplate with a reusable equipment or some other alignement operation.Several concept ideas have been generated with the help of concept generation methods in theform of concept classification trees and concept combinational tables. Two of these conceptswere selected to be further refined.

Analys av elkvalitetsproblemlokalt nät Forsbacka

I Forsbacka har det uppstått klagomål angående elkvalitén. Elkvalitetsproblemet är aven typ som kallas flicker eller flimmer på svenska. Ljusutbytet från glödlampor ärspeciellt känsliga för vissa spänningsvariationer som får ljuset att uppfattas somflimrande. Ett sådant ljus kan vara mycket störande och påverkakoncentrationsförmågan hos människor som vistas i ljuset och kan även undermedvetetpåverka individer som inte är medvetna om problemet.Forsbacka är ett mindre samhälle med ca 1800 inv. och har en elintensiv stålindustri.Tidigare mätningar visar på stort flicker i området och tyder på att störningarna kankomma från subtransmissionsnätet som Forsbacka är inkopplat till.

Marknadsföring av fond i Sverige. Om avvägningen mellan effektivitet och konsumentskydd

This paper aims to explore the reception in Sweden of the work and ideas of neuroscientist Antonio R Damasio, expressed in his four published books. The material used is mainly articled and reviews published in Sweden between 1995 and 2011 regarding Damasio?s books. To analyze the reception, paradigm theories by Kuhn, and Bourdieu?s ideas regarding field, habitus and capital has been used.

Vattenapeteorin: Paradigmskifte eller pseudovetenskap?

The Aquatic Ape theory was first formulated by Alister Hardy in year 1960. All from the beginning the theory has been criticized, ridiculed, ignored and a source to strong feelings in the anthropological community. The purpose of this essay is to investigate why the Aquatic Ape theory is so controversial and why it is understood so differently by scientists. After interviews with Swedish scientists and the general community, and after reading of anthropological books, I have tried to show that the aquatic ape-coldness depends on it challenging nature against the anthropological paradigm, which describes human beings as strong, hunting creatures who can live in any environment. The Aquatic Ape theory - on the other hand - picks out one of all these environments and says: "here has our evolution occurred: we have been aquatic apes".

Historiografi och paradigm i forskningen om kalla kriget : En komparativ analys av diplomatihistoria och internationella relationer

Adopting a socio-cultural approach to the study of cold war historiography, this master?s degree essay is a comparative study of the two main disciplinary fields of cold war scholarship, diplomatic history and international relations theory (IR). The study applies the theory of scientific development formulated by Thomas Kuhn and the concept of paradigm on the field of cold war research.Diplomatic history and IR shows many similarities in their development, and in the importance different schools has had in scholarly debate. These different schools are analysed as paradigms, a concept that has been more willingly adopted within IR than in diplomatic history. The transition from what historian John Lewis Gaddis has termed Old Cold War History to New Cold War History is discussed in terms of paradigms and paradigm shift.

Empowerment: vetenskapligt paradigm eller politisk kameleont?

The purpose of this study was to examine whether the success of theconcept of empowerment in the field of social science can be explained by referring to it as the new paradigm replacing the former paternalistic era. Therefore, I investigate if the character of its history, domicile and practice has the same distinguishing features as the scientific progress. The analysis is based on Thomas Kuhn's definition of a scientific paradigm through the concepts of consensus, crisis and revolution. I also look for alternative ways to explain the sudden appearance of empowerment at the world agenda. Due to the lack of a uniform definition of the concept and the absence of common approaches in the stimulation of empowerment it's difficult to argue that the situation is marked by consensus.

1 Nästa sida ->