In this thesis the methane gas potential of three different substrates, two algaes Saccharina latissima and Laminaria digitata and biosludge mixed with paper fiber was studied. This was done by batch experiments in a laboratory environment to examine the gas production and composition of the produced gas.Biogas production is a complex anaerobic digestion process in which various microorganisms decompose the substrate in steps and at the end produce biogas and a residue. Many factors affect the production of gas, for example the substrate content, temperature and pH in the digester.The analysis of methane potential were divided into two experiments. In experiment 1 substrates were digested along with inoculum from Växjö waste water treatment plant in a temperature of about 37 ?C.

Syftet med studien var att kartlägga anestesianvändning vid depuration utförd av tandhygienister. Ett ytterligare syfte var att undersöka tandhygienisters anledningar till varför anestesi används eller inte används. En enkätstudie skickades till 148 tandhygienister slumpmässigt utvalda av Sveriges Tandhygienistförening. Nittio enkäter (60,8 %) inkluderades i studiens resultat. Anestesi vid depuration användes främst en till två gånger per vecka med ett medelvärde på 38,6 % (±29,8).

During consultation procedures between forest owners and the Sámi, data on, e.g., reindeer lichen biomass on the current site is needed. Hitherto, the existing methods of measuring lichen cover and biomass has been either objective methods such as the Point Intercept method, which is time consuming, or some sort of subjective visual estimation, which is faster but less accurate. However, both these methods are sensitive to different observers and/or to different inventories. This paper addresses the further development and evaluation of a photographical inventory method that uses colour distribution in images to estimate lichen biomass. During the autumn of 2011 six different locations, with different grazing pressure and lichen cover, in Norrbotten county were inventoried using both the Point Intercept method and the photographical method, complemented with collection of biomass samples.

Purpose: The purpose of this thesis is to examine the ERK model's relevance, validity and potential need of development to better reflect how it looks today (2013). Method: The study is conducted through three surveys; the first two were face interviews with companies that sponsor Swedish soccer teams and the third study was conducted with a questionnaire to supporters outside a soccer stadium. Results: A model that would better reflect the reality of today (2013) could contain company pride, chairman?s whim, exposure, relationships and associations..

Med en kritisk diskursanalys undersöks hur den adopterade representeras i tv-serien Leende Guldbruna Ögon ur ett socialkonstruktionistiskt perspektiv. De verktyg som används i diskursanalysen är teorierna om semantisk täthet, hegemoni och inkodning/avkodning. Resultatet av undersökningen är att den adopterade representeras som ett fritt flytande subjekt mellan den svenska dansbandsdiskursen och invandrardiskursen. SVT:s avkodade budskap är av undersökningen att döma att den adopterade blir en del av ett homogent blattedansband. Det budskapet har potential att påverka svenska folkets syn på människor med en kulturell identitet som inte sammanfaller med det som hudfärgen representerar..

Problem discussion: How should information be handled to facilitate and benefit from modularity? How should Clarkson Inc. adapt their information handling to modularity and what benefits can be reaped by doing this? Purpose: The purpose of this master thesis is to help Clarkson Inc. adapt their information handling to modularity and to extract theories, methods and tools to guide companies in similar situations.

Under sex månader våren 2007 har ett samarbete mellan Volvo Lastvagnar och två studenter från KTH, inriktning Integrerad produktutveckling vid institutionen för maskinkonstruktion, pågått i form av ett examensarbete på 20 poäng.Dagens AC-system i Volvos lastbilar avger 20-40 g/år av köldmediet R134a som är en kraftfull växthusgas. Detta sker främst genom diffusion via slangar och tätningsmaterial. Syftet med detta examensarbete är att ta fram förslag på tekniska lösningar på ett nytt AC-system. Eventuella idéer från befintliga värmepumpar och kylsystem skall studeras för att minska eller eliminera utsläppen helt. Fokus har lagts på själva köldmediekretsen och de ingående komponenterna för att därigenom ta fram koncept där systemet är så kompakt och lätt som möjligt.Arbetet delades upp i fyra olika faser: Förstudie, konceptstudie, utvecklingsfas och rapportfas.

The energy that the earth receives from the sun hourly has potential to cover a year?s energy demand in the world. Further, this type of energy is environmentally friendly, natural and free of cost. This report covers solar energy in an urban environment and consists of a case study of installations of photovoltaic cells in a part of the city of Stockholm. It is mainly the economic aspects that are covered but there is also a discussion about the practical consequences and the sustainability as a result of integration of solar energy in an urban environment. The aim of the study is to present results from economic calculations for utilization of solar energy in chosen buildings in Kungsholmen in Stockholm.

The students have been assigned a task from Consid, were they are supposed to develop a web based platform for handling the company?s consult CV:s. The key features of the system are to simplify the administration part at mission procurements towards customers and to match qualified consultants to certain missions.Consid is an international it-consult company and have about 1000 consults working for them. When Consid makes mission procurements towards a customer they have to manually match the best consult against a certain mission, this is both time consuming and complicated.The students started the project with big visions and thoughts about how the work would be performed and how the system would be developed. After the initial meetings and the closer it came to the beginning of programming it became clear that the expectations were too big.

AbstractThis study deals with the tours carried out in the manufacturing sector, at Alfa Laval in Eskilstuna. A large number of visitors, from a variety of backgrounds, go there to see how the manufacturing of separators works. With visitors I refer to the company?s customers, suppliers, students, in- house trainee courses, managers and senior citizens groups.The study examines how these tours can be standardized using spatial design. The result shows the importance of working systematically with visualizing the work as well as the environment for optimizing the visitor's understanding.

Studien söker utreda hur anställda inom en västerländsk organisation som arbetar med forskning och utveckling i Kina kan nå sin fulla potential och göra vad som är bäst för organisationen. Detta innebär att vi måste förstå vad som hindrar de anställda från att göra vad som är bäst för organisationen samt hur de anställda bäst bör styras eller uppmuntras.Med ett kvalitativt synsätt har en fallstudie genomförts hos ett västerländskt företag som etablerat sig i Kina för att sänka sina utvecklingskostnader samt komma närmare den växande marknaden. Management control systems används som ramverk för att utforska hur de anställda påverkas av de olika sätt som de styrs i sitt arbete.Användandet av personnel controls lämpar sig väl för västerländska organisationer som arbetar med FoU i kina. Det är av yttersta vikt att anställa rätt person till rätt arbetsuppgift. För att detta ska vara möjligt är det inte tillräckligt att endast erbjuda en god miljö.

This thesis is about informal seatings, those which are planned to merge into the city core environment and to supply a flexible public space. The thesis discusses how a diverse range of elements could result in different functions and social meanings. These are illustrated with visual examples and conceptual drawings. The position of the seating in a small public place is important, as well as its location in the city. Furthermore, the detail design of the seating, such as the form and dimensions have to be considered in order to create an informal seating appropriate for the user. This leads to the broad scope of this thesis which deals with the small scale - how the seatings can create a good environment in a small place; and the big scale - how a site can influence the city. This thesis suggests the physical design of some informal seatings and also investigates how these seatings can strengthen the place through their function and how they relate to their surroundings.

During installation and operation of a geothermal heat pump system leakage of an antifreezing agent can appear in a borehole and leak out in surrounding groundwater. To guarantee high quality drinking water for generations to come Sweden has dedicated some areas as water protection areas. The local authority gives permits for the installation of heat pump systems within water protection areas. Before giving a permit the local authority makes an evaluation of the risks involved in installation and operation of the system within the area. By keeping a certain distance between the protected object in the area and the heat pump system the risk of polluting the protected object with an anti-freezing agent can be reduced.This thesis makes a comparison between three different methods of calculating an appropriate distance between the protected object and the heat pump system.

This paper supports the thesis that creative consumer advertising also can be used as a recruitment tool. By increasing the level of creativity used in their communication, a company can affect the attractiveness of themselves as future employers. The creative advertising influences the brands perceived creativity. It also increases the perceived social, development- and reputational value as well as the future intentions with the brand. By being more creative the brand is also viewed as making more marketing effort, which in turn affects the perceived potential of the brand in a positive way.

After the two big hurricanes called ?Gudrun? (2005) and ?Per? (2007) in the south of Sweden, some landowners planted Douglas fir instead of the traditional Norway spruce and Scots pine. They did it for different reasons. Some of them spreading their "risk", others because they wanted better growth or to obtain a more storm-resistant stand and trees more protected against rot. In this study, survival and growth were examined on Douglas fir in 21 different locations, owned by private landowners in southern Sweden.