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6668 Uppsatser om Perspective of power - Sida 31 av 445
Minivindkraftverks inverkan på lågspänningsnät
Micro-power wind energy convertors have recently increased in popularity. The reasons for this are among other things the increasing cost of electric energy and enviromental concern.In this thesis the connection of these micro-power wind energy convertors to the utility network is discussed. Electric standards for the connection of small production units is presented. Finally some calculations and measurements of electric quality are also presented. The utility network used in the calculations is part of Halmstad Energi och Miljö network..
The Warrior vs The Underdog : En kritisk diskursanalys av filmen ?Warrior?
This study is focused on representations of power and masculinities in the movie ?Warrior?(2011). By using the notion of interdiscursivity, as discussed by Norman Fairclough, my goal isto analyze how the roles of the characters relate to existing discourses in today?s society. I amprimarily interested in discourses revolving around MMA-fighters, masculinities and familyrelations.The movie to be analysed in this study is suited for interpreting new sorts of masculinitiesthrough the sport of MMA, which itself is fairly new and therefore might represent a new type ofmasculinity in the making.
Kassaflödesanalyser - En undersökning av kassaflödesanalysens användning i förhållande till det tidsperspektiv som styr företagens agerande.
Purpose: The purpose of this thesis is to investigate potential associations
between usage of the cash flow statement report and time perspective in which
companies? acts and set goals.
Method: Our approach is quantitative, using empirical data summarized in a
statistical procedure. The result is thereafter analysed through the developed
analysis model from which conclusion is drawn.
Results: We have in the investigation stated that the usage of the cash flow
statement report varies depending on the time perspective in which companies?
acts.
Marin diplomati ur ett småstatsperspektiv. : Fallstudie svenska Ålandsexpeditionen 1918.
Abstract:The old established description gunboat diplomacy has in modern time changed to a broader and more nuanced definition called maritime diplomacy. But what is maritime diplomacy and how is it described? This essay analyses the theories from the Englishman James Cable and the American Edward Luttwak. Both Cable and Luttwak represent nations which have a global security interests and deploy their maritime forces worldwide. The foundation for their theories is power politics.
Barnets bästa : En studie av socialsekreterares tolkningar av barnets bästa och barnperspektivet i vårdnadsutredningar.
In Sweden the divorce rates has increased during the latter part of the 20th century. For many children it?s everyday life growing up with parents no longer living together. The Parental Code states that "The child's best interests must be central to any decision in custody, residence and access." But what does the child?s best interest really mean and how do we investigate it? We decided to investigate its meaning by interviewing social workers regarding their interpretations of the child's best interests from a family law perspective.
Hard Decisons, Soft Laws : Exploring the authority and the political impact of soft law in international law
The question of whether there is soft law in international law has been as much the subject of contemporary debate as whether or not there is private legal authority in the international society. The legal boundaries seem to be blurred by the process of globalisation and the recent shift in international law. The traditional definition of international law has been outdated as new forms of treaties has introduced new subject of law to the judicial arena. At the same time a supplementary map of law has been added to the cartography of international law, soft law. These correlating processes have comprehensive political and legal consequences at both the international and national levels.
Uljabuouda vindkraftpark turbinmodellering och stabilitetsanalys
This master thesis has been performed at Solvina in Gothenburg for Skellefteå Kraftand Vattenfall Eldistribution. The aim of it is to investigate the consequences of theinstallation of a wind power plant on the mountain Uljabuouda in the vicinity ofArjeplog. Especially the impacts on voltage and transient stability are examined.Furthermore, the amount of extra strain on the voltage regulation equipment and theneeds for increased regulation capabilities are looked into.The wind power plant is planned to be built by Skellefteå Kraft and connected to a130 kV grid owned by Vattenfall Eldistribution. The work comprehends the followingmain parts:- Theoretical studies aimed at wind turbines and power system stability issues.- Modelling of the type of wind turbines assumed to be built on Uljabuouda.- Simulations of different operation cases and analysis of the simulation results.The results from the simulations show that, as far as voltage stability and extraworkload on tap-changers are concerned, the wind power plant does not, in anysignificant manner, worsen the present conditions. The problem of overloading theline between Arvidsjaur and Vargfors is also minor.
Utvärdering av konsekvenserna för nätanslutning av vindkraftparker i Sverige vid införandet av nätkoden Requirements for Generators
Grid codes are becoming more demanding on power generating units due to the factthat the complexity of the power grid is increasing. The penetration of wind powerhas grown over the last years and it is clear that wind farms need to be addressedwith the same type of grid codes as conventional generation units. There is howeveran undeniable difference between the technology in conventional synchronousgeneration units, and the asynchronous generation units in wind farms.This thesis has reviewed the current grid code in Sweden and compared it to the newcode proposed by ENTSO-E, ?the Requirements for Generators?, in the aspect ofwind farms with an installed power of 30 MW or more. The comparison has beencomplemented by an analysis of how wind farms of two different technologies(Doubly fed induction generators and full power converters) can meet therequirements and technical proposals have been given on how to be able to meetcompliance with the new grid codes.The Requirements for Generators contains many non-exhaustive and optionalrequirements, because of this it has been difficult to, at this stage, exactly point outthe technical impact on the grid connection of future wind farms in Sweden.
Vem är ansvarig? : En samhällsvetenskaplig diskussion om utbrändhet
University of ÖrebroDepartment of social SciencesSociology, Contnuation Course, 61-90hp.Essay 15hp. Spring 2008Title: Who is resbonsible? A soceityscientific discussion about burnout.Author: Emilie FuchsAbstractThe purpose with this essay is to do a critical comparation between two different perspectives, burnout as an individual problem and burnout as a social problem. The first perspective states that the individual itself is responsible for her sickness while the second perspective states that the society and foremost the labour market should work in order to prevent people from beeing burned out. With that purpose in mind I want to enlighten and hopefully bring up the topic for discussion.The essay is based upon the following questions:? How can you sociologically understand the labour market of today?? How can you understand burnout in an individual context?? How can you understand burnout in a social context?By studying and reading four books, I have presented the two different perspectives of burnout.
Bors E23 - Framtagning av eldriven röravklippningsmaskin
Our Bachelor´s Thesis has been performed in co-operation with Bors Automation & Tool AB.Our task was to develop a servomotor powered tube cutting-machine with initial point fromtoday's hydraulic driven tube cutting machine Bors HYD 23. The purpose with the newconstruction was to achieve a more power-efficient tube cutting machine which could lowerthe power consumption, and also meet the market continued growing demand forenvironmental-conscious production.Bors Automation & Tool gave us relatively free hands in order to enable new thinking ideaswithout following their traditional constructional solutions.Our solution resulted in a construction based on a power source existing of a servomotordrivenrollerscrew, witch provides a more rational use of energy compared with the currentmethod.Bors Automation & Tool AB has decided to fabricate a prototype of Bors E 23 during theautumn of 2007, which they are planning to revile at the Tube 2008 exhibition in Düsseldorf,Germany.NOTE:Due to an agreement signed by the authors in the beginning of this project, no appendix is published at this time.If you want to wiew these documents, please contact the authors..
Tidssynkroniserade mätningar i vattenkraftstationer
Vattenfall and Svenska Kraftnät perform start-up tests, where hydropower generators are used to power up the electrical grid in case of a blackout. To monitor the electrical grid, Phasor Measurement Units (PMU) are used. Each PMU is individually equipped with a GPS-receiver to precisely timestamp the data relative to the official time UTC. During the test, it is also of interest to timestamp the measurement signals from individual hydropower generators to later compare with PMU-data, and thus study the power grids impact on the generator. The aim is to work out an appropriate method to make these measurements and to build a data acquisition system, capable of timestamp data relative to UTC, from a generator in one of Vattenfalls hydroelectric power stations. The problem is that the generator is located in an underground station which hampers the reception of GPS-signals and wiring should be avoided if possible. Time synchronization has been solved by using Vattenfalls network, which is synchronized by the network protocol NTP.
Vad det nu hette...Jämställdhet...? : Ett utredningsarbete på en klinik
The aim of this investigation work " What was it called...Equality...? is to study a clinics current gender equailty plan from a gender approach and by a field survey see if, and in that case, how it can be improved. A connection between existing gender norms and gender power strukctures is applied in the results of this survey in order to illustrate their significance from an individual as well as a structural perspektive.The survey has been carried through by a field survey as well as a discourse analysis as method. Yvonne Hirdmans gender power system is on of the main theoretical points of departure.The results that I have achieved in this essay is that gender can be looked at in different ways within the labour market where women have the main responsibility over the family and are considered more nursing then men. Men on the other hand are thinking of their carriers and have higher salary requirements.
Energiewendes påverkan på det nordiska kraftsystemet
Both the German and the Nordic power markets are seeing dramatically changed conditions due to an ongoing process of expanding the share of renewable production in the systems. For the German part this comes from heavy subsidies which have led to an explosive development in installed capacity of photovoltaic and wind based production. After the Fukushima incident it has been decided to shut down all Germanys nuclear plants. This capacity drop is however not of the same magnitude as the
increase in renewables, but will impact the stability of the power system. The Nordic power system which already has a surplus of power sees an even further increase, coming mainly from construction of new nuclear plants in Finland and a general increase in wind farms.
Att möta vampyren : Hur kan Twilight behandlas i skolan?
This essay discusses how popular literature in general and Stephanie Meyer?s Twilight-series in particular can be useful in the classroom, despite, or rather, thanks to, its inherent problems concerning gender roles, relationships and the power systems within them. The essay takes a reader and teacher centered approach in describing both the problems of Twilight and the ways these problems can be worked with in the context of the school subject Swedish in upper secondary school. It makes an inventory of Twilight?s problematic aspects, and attempts to use them in conjunction with the governing documents of the Swedish school system.
Undersökning om ensamkommande barns upplevelse av mottagandet på HVB- hemmen
A controversial party?s entry into parliament - a review of Expressen?s depiction of the Sweden Democrats (Sverigedemokraterna)The purpose of this essay was to study how Expressen presents the Sweden Democrats, as well as reasoning about the effects this depiction could have on the citizens? opinion. Using a quantitative method I studied 122 articles, and through a qualitative method four of these could be further analyzed to reach a deeper result. The theoretical perspective that was applied in this study was primary agenda-setting and framing theory, to illuminate the power of media. The result showed that a prominent theme was to present Sweden Democrats as racists.