In today?s society there is an increasing demand for renewable energy sources such as sun and wind power. These sources are intermittent, and energy storage is therefore needed to ensure a constant power supply. This report compares pumped hydro energy storage (PHES), compressed air energy storage (CAES), flywheels, batteries, super magnetic energy storage (SMES) and hydrogen energy storage.The opportunities for further development are limited for PHES and CAES in comparison with the other technologies. Lithium-ion batteries and hydrogen energy storage are considered to have the most potential in the future.

The overall objective of our research is to understand  how social workers in social services protect the individual's autonomy, integrity and a coercive law which deprives the individual of his rights.In this study, we bring out social secretaries perspective on how they see the compulsory treatment and the problems that can arise in a detention. This study is based on the questions; How are power between social worker and client? What is the social secretary of the law on compulsory as a tool to help clients?We interviewed eight social workers who work specifically with compulsory treatment. We used the result to answer our questions. As a theoretical background, we chose to use the power perspective, the concepts of flexibility and freedom of action and categorizations.The results that emerged from our study are that compulsory treatment is considered to be a positive and negative thing.

The aim of this essay is to analyze how food and meals produce and reproduce values and power relations and how these processes are portrayed in Virginia Woolf?s To the Lighthouse. Using sociological writings in the field of food consumption and production I study the structures that affect our relation to food and eating. This perspective is combined with a phenomenological view, aiming to examine how food is perceived, which is also inspired by queer theories. Using the method of close reading, the theories are applied to Woolf?s work.

The purpose of this thesis is to investigate the possibility to make small, cheap and ultra low power sensor platforms, connected in wireless networks for monitoring of home and industrial environments. The concept is based on ideas from our supervisor, Jerry Lindblom. The developed system consists of a generic platform for different sensors, a receiver and software. A GPRS module from RO Rollytech AB and a database from Gema Industri AB have been modified and used to demonstrate an example of a complete system. To the platform, it is possible to connect any resistive sensor and any sensor that can act as a switch.

Abstract: The aim of this study is to investigate the attitudes towards the labour movement?s strategies, goals and organisational issues in Swedish Miners? Union?s (Gruvindustriarbetareförbundet, hereafter Gruv) paper, Gruvarbetaren 1917-1925.The theoretical starting point is Engels? view on the class state. This perspective turns the question of socialism and the way to get there into an issue of working class power over the state. Another theoretical perspective is the partition of the labour movement into a trade-unionistic branch, seeing unions as financial organisations of interest, and a pro-state one, considering unions as political organisations.During the period investigated Gruvarbetaren was quite radical and advocated a firm class struggle strategy towards employers. Since these were considered unreliable, class struggle was seen as the only way to better the conditions for the working class.

The purpose of this essay is to investigate the subject field of male vegans and masculinities through empirical method interviews and narrative analysis. The starting-point for this essay is animal ethics, feminist ethic vegetarianism and theories that suggest that eating meat is one part of the social construction of masculinities. The problem formulation is such as follows:How do male vegans construct masculinity? In an attempt to answer such a question there are three problem formulations:What do male vegans think about the connection between manhood and eating meat?How do male vegans relate to the norms in society?What do male vegans think of stereotype conceptions about vegans?I will come to the conclusion that male vegans think that eating meat, as well as drinking beer, is one part of the social construction of masculinities. Male vegans are aware of norms in the surroundings and the strong attachment of meat normativity in the western culture.

The scope of this investigation is the conditions under which readings of Repulsion (1965), and its depicted mental illness, took place in Sweden during the censorship debates in 1965, and also how the reception was related to narration and subjectivity in the film. The reason for this is the strong reactions to the images of the main character?s inner state, and concerns about negative effects in the public, that were raised. One major concern is how the film articulates discourses through which meanings are produced; that is, how it works as social technology. My thesis is therefore structured around two levels; textual analysis and discourse analysis.

AbstractTitle: Dragshow on the seven seasNumber of pages: 51 (56 including enclosures)Author: Therése PlastrougiTutor: Ylva EkströmCourse: Media and Communication Studies CPeriod: Fall 2007University: Division of Media and Communication, Department of Information Science, Uppsala UniversityPurpose/Aim: My main purpose with this paper is 1) to study how film as a media can subvert traditional gender constructions and 2) study the character of Elizabeth Swann in the trilogy Pirates of the Caribbean through four dimensions; Gender performance, Class, Desire and Power.Material/Method: My main material is the trilogy Pirates of the Caribbean. I have studied Elizabeth?s character based on semiotic and narratological methods.Main results: Film as a media possesses the full potential to change traditional gender roles, but the full subversion is denied due to the heterosexual matrix. Elizabeth?s character almost completes her subversive journey throughout the trilogy, but since she too is a victim of the heterosexual matrix, a full subversion is not possible.Key words: gender performance, class, desire, power, sex/gender, subversion, narratologic, semiotic, queer, feminism, pirates of the caribbean, intersectionality, parody.

This report is about the experiments with mixing of the separated water and the vacuum pump seal water at Hellisheiði power plant. This is done to prevent silica scaling and clogging in pipes and reinjection wells as well as eliminating vacuum pump seal water from the plant. The experiments were done in four stages: the first stage comprised of tests with different flows of separated water at 70°C, the second stage was carried out by mixing the separated water at 70°C and the seal water with different amounts of the seal water, the third and the fourth stages were like the first and second but with the separated water at 120°C. The results show that this method is good if the mixture is around 50/50 separated water and seal water, to control the silica scaling in the separated water and to be able to reinject the seal water with the separated water. This does not eliminate the silica scaling in all of the separated water because the amount of separated water is much more than the amount of seal water that comes from the plant. .

This two year master thesis examines the Swedish prison library's history during cell prison era.The investigation extends from the mid-1800s well into the 1900s. The purpose is to investigate theprison library by using a power concepts influenced by Michel Foucault. The questions revolvearound the ideas that formed the basis for the prison library and how the prison library was organizedin practice. Three types of sources are used to answer the essay questions and illustrate its pro -blems. Firstly, annual reports concerning the swedish prison system.

The objective of this thesis is to explore the prerequisites for children?s participation in the activities of the public library as expressed by six children?s librarians. Qualitative semi-structured interviews were carried out to investigate how the librarians interpreted the concept of participation and viewed power issues between children and adults. Further, difficulties and possibilities experienced in working with children?s participation and manifestations of children?s participation in everyday library work were also investigated.

The aim of this essay is to analyze the implementation process of the International Baccalaureate?s Diploma Programme in four of the approximately 30 schools currently offering the IB at upper secondary level in Sweden. The starting point is a comparison between definitions in fundamental documents in the national programmes for Natural Science (NV) and Social Science (SP) on the one hand, and the IBDP on the other. The evaluation, based on Program theory, focuses in particular on the consistencies in the Organizational plans of each system.  The basic assumption is that the IB due to a deviating organizational system, different structures, aims and objectives makes a challenge for the dominating educational discourse, to use a concept by Michel Foucault, and that resistance against the IB therefore is to be expected.As a second part of the evaluation five people who either play, or have played the role of coordinators of the IB, and who thereby are responsible for the implementation, have been interviewed. The questions have been focused around in what sense the informants can confirm resistance in their implementation work due to the differences found in the first part of the evaluation, and in what ways it manifests itself.Finally, Michel Foucault?s power structures in connection to discourse analysis have been applied on the results of the two previous parts of the essay.

This essay discusses immigrants? prospects of constructing an identity in a multicultural society like Sweden. The discussion is primarily theoretical but offers a few empirical examples to demonstrate its relevance. Furthermore, the ontological standpoint of this essay draws on an understanding of the world and our knowledge as constructed which implies that identities are also constructed. The process of identity making is further understood as a relational process in which others recognition is central to the individuals own understanding of his or hers identity.

This master thesis concerns itself with the actual work of knowledge workers, consultants to be specific. We have through interviews and observation tried to get inside of the ?black box? of the consultants firm Consult in an effort to describe their way of working through a theoretical framework. In this framework we attempt to combine knowledge work theory with that of organizational development, OD. We try to introduce the situation of the individuals we study, the consultants, through Alvesson (2004) and Løwendahl (2005).

This study aims at using discourse analysis to analyze SFI students attitudes to religion and religiosity in an SFI-context. The questions are: How is the discourse constructed and maintained by religion and religiosity of SFI students in an SFI context? How do SFI participants experience that their religion has affected their time at SFI?Using a case study approach, interviews were conducted with a group of SFI students. The results show that the religious discourse in SFI is influenced by the SFI-context and affected based on the current education discourse that exists there. Furthermore, the discourse is designed and maintained by the participants private religious beliefs and the religion of the majority of the group, One canhere speak of a strong social unit forming a plausibility structure The power structure that emerges is that the majority has the power to define the significance of religion and place within the SFI context. In the SFI-context the participants view is that religion is something private that should not be expressed in the school environment.