In Stockholm, Johanneshov the Slaughterhouse area (Slakthusområdet) can be found. A number of companies have gathered there providing the Stockholmers with meat products. This area has a great need for cooling to supply large cold storages. To facilitate this, a central cooling system has been built, supplying the area with effective and safe cooling.The aim of this master thesis study is to give hints to energy efficient and reliable changes that can be put in place at a low marginal cost depending on the future activities in the area. The suggested changes will be presented to the company Bravida (managing the system), which also desires a deeper understanding of the energy flows through the central cooling system.Firstly visiting the site with proper guidance, we have then tried to understand the function of the system including which machines and media that are used.

The purpose of this thesis is to collect knowledge of techniques and materials for planning roofgardens. Gardens built on top of buildings is not a new phenomenon, already in the beginning of the century architects were experimenting with roofgardens. During the Modern Era roofgardens appeared as a part of the design and worked well together with flat roofs and the ideas of light, air and greenery. Today the most common kind of roofgarden is on a ground-level joist that hides parking or other underground functions. The most important difference between planning a roofgarden and a garden on the ground is the limitation of the load of the roofgarden. Plants, paving-material and equipment must be chosen with this in mind. A light and thin layer of soil demands plants with small needs for water and nutrition.

The purpose of this project was to further develop and complete a quadcopter that had been built in an earlier course at KTH, so that it could be used for demonstration and education at the school. The quadcopter was at the beginning of the project completed when it came to hardware, and there was some software functionality implemented but no system for automatic stabilization. The main goal of the project was to implement such a system, and to combine it with the previous functionality to make the quadcopter operable and able to fly. To create a functioning and stable ground multiple basic software features has been implemented, and on top of that additional software to improve the safety, stability and functionality. The most important part is the control system that is responsible for converting sensor and control signals to suitable motor values.

In this report hardware based alternatives to password authentication in a Windows domain are evaluated for the needs of a certain company. In order to investigate the demands on such alternatives interviews with people concerned have been carried out. The demands which resulted from the interviews have been used to select types of hardware tokens for evaluation. Two products which offer authentication with smart cards and USB tokens have been selected and closer evaluated. These are RSA Passage which offers both hardware options and Rainbow iKey which uses USB tokens.

The aim of this report was to investigate the economy of passive houses. The work was focused on economy in total and on the economy of different components such as windows, insulation, heat exchanger and the air tightness of the climate shell. No attention was paid on the comfort factor or to the impacts on the environment.Two houses, aspiring to be passive were chosen; A big one and a small one. Hence, comparisons considering the size of the building have been possible to do as well.The comparisons were made by calculating ?break even? between two concepts; passive and BBR- concept.

Throughout the years the Swedish local history societies have collected a large quantity of material, consisting of photos, documents and items, among others. As the society has become more computerized, the need has increased for these collections to become digitalized. This is a way to make their media more easily accessible to the general public, but also to easily be able to archive and preserve for example photos and videos electronically.This thesis concerns itself with the work we have done for the local history society of Nyed in Molkom. The task set before us consisted of creating both a website for the society, and a reliable database from witch the website draws its information. This project allows anyone with administrator privileges to upload new files and any additional information.

The purpose of the project has been to work out recommendations that reduce the energy-related costs and environmental impact of HPW Fresh & Dry Ltd., a fruit drying factory in Ghana. The factory produces electricity with diesel and biogas but also purchases electricity from the national electricity company. Heat for the drying process is produced from biogas, kerosene and solar panels. In the project the energy system was analyzed by measuring production and consumption of heat and electricity. The project results show that the factory can become self-sufficient on heat if the available energy is used more efficient. The production units for both electricity and heat have low efficiencies.

This report present the design and manufacturing of a wide-band driver amplifier placed in radar module for airborne applications. The major goals for the amplifier were a high efficiency and to deliver a predefined output power. To reach the second goal an additional preamplifier had to be constructed. The amplifiers were constructed in three steps: Design and Layout in the software Microwave Office, Mounting components and Verification. The driver amplifier was decided to be a push pull configuration consisting of two parallel transistors biased in class AB.

1 augusti 2011 upphävdes Arbetsmiljöverkets dispens för uttag av extra mertid och extra övertid. Istället är det nu upp till arbetsgivaren att bedöma ifall det finns särskilda skäl för uttag av extra övertid och extra mertid samt att bedöma att situationen inte går att lösa på annat rimligt sätt. Skyddsombuden får nu som ett led i regleringen möjlighet att göra framställningar till arbetsgivaren om det behövs för att säkerställa att arbetstidslagen följs.Syftet med uppsatsen har varit att ta reda på vilka omständigheter och situationer, som krävs för att en arbetsgivare ska kunna ta ut extra övertid och extra mertid. Uppsatsen beskriver den gällande rätten för uttag av extra övertid och extra mertid. Syftet har också varit att redogöra för hur skyddsombudens befogenheter har påverkats av de nya reglerna kring uttag av extra övertid och extra mertid.Uppsatsen har baserats på en rättsdogmatisk metod, vilket innebär att den har haft sin utgångspunkt utifrån olika befintliga rättskällor.

TV and radio services have always been distributed over analogue broadcasting networks and been received on a TV -set or a radio receiver. Today this situation is changing due to digitalization and convergence between broadcasting, telecommunications and data communications. Other terminals, such as a PC, can also receive TV and radio services. Digital TV and radio can offer additional services such as e-commerce, electronic program guides and content synchronized to the TV and radio shows. If these services are to be received by several receiving terminals with different properties, the services must be adapted to the terminals.

The purpose of this essay is to identify the costs of illness in different organizations, and compare the calculated result with the actual result in their annual reports.We collected information thru interviews with the personnel manager in the selected organizations, and used the annual reports to add necessary information.When we applied our model, we found that the selected organizations, in some cases, have a cost of illnes which is up to seven times higher than shown in their annual reports. It?s, in general, the costs that aren?t related to the salary (additional costs), which are much higher than shown.The absence of a model that calculates the costs of illnes can result in wrongful decisions. If a model would be applied in an organization, it should increase the awearness of the actual costs of illnes, which can lead to better decisions througout the whole organization.This report is written in Swedish..

The purpose of the study is to highlight the issue of student loans securitization, and assure the importance and benefits that could be realized by performing such a transaction. The methodology is a case study for The National Board of Student Aid. It is a qualitative study, mainly using interviews, literature and scientific articles. By using this information we construct a securitization transaction structure ?CSN 2006-1?, and conduct a cost/benefit analysis.

Outsourcing is today a common phenomenon among businesses in most industries. The term outsourcing means transferring the responsibility of performing a certain function to an external supplier. There are usually certain methods to investigate the effects and the outcome of a function that is performed by the company itself. When this function is performed by an external party, the complexity of the function will increase.This leads us to our purpose: Based on different theories clarify how a company ensures a desired effect out of marketing when this function is outsourced to a certain retail- and advertising agency.In this essay we have defined us to study one of Sweden´s leading mobile operators who have outsourced their sales management to a retail- and advertising agency. To get an additional point of view, we have included one of the mobile operator´s intermediates, which is a selling agent whose sales function is led by the retail- and advertising agency..

This thesis introduces Kongjian Yu?s design approach in terms of industrial heritage conservation in connection to transformation and urban design. The approach is examined respectively on two cases from China and USA. The thesis give a brief introduction to current achievement in conservation research and general profile of industrial conservation practice. Based on case and theory study, Yu?s design approach is carefully applied to an industrial area Nyhamnen in Malmö and a design proposal is produced.

The aim of this Master thesis has been to analyse the debateon Wikileaks as it occured in the Swedish daily press during2010 and early 2011, as well as to identify what differentdiscourses influenced the discussions. The empirical materialconsisted of fifty-three articles, taken from three nationalnewspapers and has been analysed using the discourseanalysis theory of Ernesto Laclau and Chantal Mouffe. Thearticles were analysed in four stages which included:identifying statements concerning Wikileaks and itsoperations; identifying additional groups and individualsappearing in the debate and the statements made about these;grouping statements into themes and on the basis of thesethemes construct chains of equivalence and identify subjectpositions. The last stage consisted of identification ofdiscourses and the relationships and possible conflictsbetween those discourses. The results showed that fourdiscourses could be identified: the good democracydiscourse, the traditional diplomatic discourse, the goodjournalism discourse and the power-critical discourse..