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7082 Uppsatser om Media power - Sida 4 av 473
Att skildra De Andra : om rasism och elitens användande av etnicitet i svensk massmediediskurs
The essay, which is solely theoretical to its form, presents a critical view upon the unproblematized usage of the concept of ethnicity in the Swedish mass media discourse. Theories of critical discourse analysis and post colonial nature is applied to and used to analyze what ethnicity really means. The essay also provides an insight in the functions and power of mass media in Sweden today to understand why ethnicity is so widely used, and what consequences it may bring upon the systematically excluded "other" and the society as a whole..
VSM och 16 förluster
With background in the rapidly growing need to find solutions for sustainable energy production and the increasing interest for wind power, this report was written. With take-off point from the wind power plant Big Glenn, which has been built in the harbour of Gothenburg, a model of the adjacent power grid has been created in Simulink/SimPowerSystems. Parameters for the power grid and its components has been provided by Göteborg Energi Nät, that has also been the supplier of measurement data of produced power, the power need from loads in the vicinity, voltage levels, current values and also the variation of power factor at the wind power plant.The SimPowerSystems model has been used to perform simulations of power flow in the grid. These simulated values have then been compared to the measured values to verify the functionality of the model. Further, the model has been used to perform simulations of a grid fault, which causes a voltage drop.
Trafikverkets effektstyrningssystem - EFS 132 kV : Bidraget till minskade förluster
The technological legacy from the early electrification of the Swedish railroads has resulted in a power grid with a lower grid frequency than the national power grid from which it is fed. Energy transfer between these power grids with different frequencies requires substations, adapting the grid frequency for the rail road power grid. For this purpose, a feeding power grid has been built, stretching across the country from Boden in the north to Tälle/Häggvik in the south.Power transfer in the Swedish power grid results in voltage angle differences which increase with increasing loads and transfer distance. These voltage angle differences are transferred from the power feeding substations to the rail road power grid, will in some extent cause loss of energy due to unwanted power flows from north to south.To minimize the losses due to this phenomenon, a power management system called EFS 132 kV has been developed and implemented. The system minimizes the unwanted power flows and controls the desired power flow for a good distribution of loads between the power feeding substations.This thesis investigates the extent of the transmission losses avoided due to the EFS 132 kV that coordinates the idling angles to a common reference point.The results indicate that EFS 132 kV affects the power flow, especially between the northern substations through an improved load distribution.
Självförsörjande elgenerering : Kan Orust bli självförsörjande på förnybar el?
Orust Kretsloppsakademi is a nonprofit organisation, with a goal of annually generate the same amount of electrical energy that is consumed. Orust is an island on the west coast of Sweden, north of Gothenburg. The population of 15 000 reaches 40 000 during summer, due to the large amount of vacationer. The total electricity demand is 174 GWh a year with a maximum power need of 32 MW. This report presents an analysis for the plausibility of their plan and from a power system stability perspective, the effects on the electrical grid.The conclusion is that the restraints for development of power generation from wind, solar and wave generation, are the power systems capability to transfer power, primarily in the transformers of the grid.
Kritisk mediekompetens i praktiken : En kvalitativ studie av åtta medielärares ämneskonstruktion utifrån begreppen protect, promote och empower
This paper describes how teachers of media view and construct their subjects. Eight teachers have been interviewed about their views and opinions about the media environment, their goals for media education as well as their opinions about the different course plans used in media education. The term Media Literacy works as a theoretical starting point for the study, since Media Literacy is the goal for most media education. The teachers? answers have been analyzed by using three different approaches to media education: protection, promotion and empowerment.
Tillförlitlighet hos trafikolycksklassificering
Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.
Undervattensvågbrytare - En modellstudie
Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.
Kärnkraftens värde i framtiden : en jämförelse med kraftvärmeteknologi från biobränsle
The debate on the future of Nuclear power in Sweden has increased with the discussion on global warming. The uncertainty of fossil fuel- and carbonprices the latest years has aroused considerable interest in Nuclear from power companies, industry and politicians. Nuclear power plants have negligible CO2 emissions and are not directly affected by increased price of emission rights and fossil fuels. The future power production needs to reduce its emissions of greenhouse gases to become sustainable.
The purpose of this study is to examine the value for power producers to have the option to invest in Nuclear power and how a Nuclear power venture would affect future electricity prices. The study uses two methods, a traditional cash flow model and real option analysis, to estimate the value of Nuclear power.
Experiment: Tillväxtvilja : En studie om varför småföretagare önskar tillväxt
This thesis treats the normative power of the European Union and its affect on Macedonia. The main purpose has been to look closer with the use of the application of Ian Manners theory of normative power on the Macedonian case. The focus will be to answer the following questions: Does the European Union act as a normative power in relation to Macedonia, if so, how are these values diffused? Has there been any effect of the spreading of these values? Based on six interviews and the available material of European Union strategies for the Macedonian membership I have attempted to understand to what extent the European Union?s normative power has had an influence in Macedonia. The result of my analysis is confirmation of the European Union as a normative power in Macedonia and the understanding of the methods of application..
Kampen om Könskriget : - en diskursteoretisk analys av meningsskapande kring Dokument Inifråns granskning av extremfeminismen
AbstractTitle: The struggle of ?The war of the sexes?- A discoursetheoretical analysis of Dokument Inifrån?s review of extreme feminism (Kampen om Könskriget ? En diskursteoretisk analys av meningsskapande kring Dokument Inifråns granskning av extremfeminismen)Number of pages: 40Author: Anna OsterlingTutor: Amelie HössjerCourse: Media and Communication Studies DPeriod: March ? May 2006University: Division of Media and Communication, Department of Information Science, Uppsala UniversityPurpose/Aim: To analyse the debate in Dagens Nyheter from May 2005-June 2005 concerning the documentaries ?The war of the sexes? and to use discourse theory to reflect upon how the texts create different thruths and discources. A second purpose is to analyse how the texts create identities and groups, mainly concerning feminism. A third purpose is to relate the creation of meaning to structures of power and genderrelations.Material/Method: The material consists of 57 texts from Dagens Nyheter published during the chosen period, all relating to the documentaries. The method is textual analysis with a discoursetheoretical persective and analysis of societal structures and power using theories from Foucault, Conell and Säljö.Main results: There are several discourses struggling to create mening around ?The war of the sexes? of which some are greatly antagonistic towards each other.
Ryskt luftmaktsanvändande i Georgien 2008 ? ett fall av Warden?
The Russian-Georgian war of 2008 drastically changed Europe´s and Sweden´s political climate.Russiashowed that it is capable of successfully completing complex campaigns including ground, naval and air assets. However, not much has been said about the theoretical framework and doctrine of the Russian military of today. Even less has been researched about Russian use of air power and applied air theory. Are air power assets still considered primarily as support of ground offensives or has the theoretical framework changed?John A.
En övervikt av kvinnor : En kvantitativ studie av bilder och skribenter på Aftonbladets viktsajt ur ett genusperspektiv
We have investigated the visual representation of men and women in Aftonbladet?s weight site. We have made a calculation of how many of the women and the men who were portrayed smiling/ not smiling, active/passive, looking into the camera/looking away from the camera and from which camera angle the picture is taken. We also kept statistic on the gender representation of the authors of the articles.Our investigation shows that Aftonbladet?s weight site has a distinct overrepresentation of women on their pictures, but also in terms of the authors of the articles.
Kompensering av reaktiv effekt vid vindkraftverk
Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.
Den bortglömda krisen ? en kritisk diskursanalys på nyhetsrapporteringen av Centralafrikanska republiken
Central African Republic has partly been portrayed in the media as a forgotten crisis, but also as something that is completely natural for how it is in Africa. The society has perceptions about Africa, which has been reproduced and reconstructed in the selected articles. The discourses in particular have appeared in articles are discourses about: us and them, the confidence in experts, social representations especially (emotional roots), ideological inequities and power relations between different parties..
EU som global politisk aktör - En utvärdering av Normative power Europe
What kind of international actor is the European Union and how shall we define it? These are questions that many have tried to answer often by addressing the apparent uniqueness of the EU itself. One of these theories is Normative power Europe. A theory whose main argument is that the EU is best perceived as a changer of norms. My aim with this thesis is to test this claim and to see if the Union should be regarded as a normative power.