Combustion of fossil fuels is today the dominating source of energy. During combustion,carbon dioxide is formed. The carbon dioxide accumulates in the atmosphere,which raises the global average temperature on earth through the so called greenhouseeffect. The only way to reduce the emissions of carbon dioxide from combustionin a coal fired power plant is through carbon capture and storage (CCS).Post-combustion capture is a technology to separate carbon dioxide from the uegas after the combustion for efficient transport and storage. The steady state operationof coal fired power plants with post combustion capture has already beenthoroughly investigated on a pilot scale, however much work remains to investigatethe plants dynamic operation.

The number of data centers and their capacity is increasing throughout the world. Theenergy used in these data centers and the emissions from the use are increasing at thesame rate. The total use of energy will double from 2008 to 2011 based on the trends indata centers use. Research in this area says that the emissions from data centers willhave surpassed the level of airline traffic in 2020. The index used today to compare howefficient a data center is, called PUE, is lacking some information.

Denna uppsats utgörs av en jämförande studie vars mål var att utröna huruvida åtta stycken utvalda investmentbolag på Stockholmsbörsen hade varit ett konkurrenskraftigt alternativ som sparform eller inte med avseende på risk och avkastning. Detta jämfört med SIX Return Index och den riskfria räntan under en tidsperiod på tio år, 2001-01-01 till 2010-12-31.Syftet med undersökningen var att den i slutändan skulle mynna ut i generella slutsatser kring investmentbolag som sparform utifrån de data som hämtats in från de berörda investmentbolagens hemsidor.Författarna kunde efter avslutad undersökning dra slutsatsen att investmentbolagen historiskt sett hade klarat sig mycket bra och kunnat uppvisa resultat som varken marknaden eller den riskfria räntan var i närheten av. Även om vissa av investmentbolagen hade presterat sämre än jämförelsemåtten så var dock den samlade bilden att de som grupp hade varit ett mycket fördelaktigt investeringsalternativ. Detta med en genomsnittlig totalavkastning som överträffade index med drygt åtta procent.  .

This paper investigates the possibilities to construct automatized portfolios based on optimizations strategies that could outperform comparable indexes. The study is based on time-series of Swedish stocks dating from 1986 to 2006. In the research four different portfolio optimization techniques were studied. These were: the Classical Markowitz Approach, Mean-Absolute-Deviation, Minimum-Regret and Conditional Value-at-Risk of which the three latter are based on generated scenarios. The behaviour of these models was studied for different choices of parameters such as backward time-horizon and targeted average return.

The Kedertruss is the loadbearing part in the Keder weatherprotectionsystem and it has been analyzed concerning its loadbearing capacity. The Kedertruss is produced and manufactured by Wilhelm Layher GmbH & Co. KG and this report has been made for their Swedish division Layher AB.  The Kedertruss, designed in Germany according to German designcode, has been recalculated concerning Swedish conditions according to Eurocodes and a ongoing European standardization project. The two-dimensional program Winstatik Frame Analysis has been used for evaluation of load effects. Capacity has been calculated by hand-calculations and it has been verified that the Kedertruss in its larger spans isn?t able to withstand the loads.

This thesis examines what automatic indexing and genre classification may bring to fiction. The thesis studies five theorists of the subject to find out what the biggest problems are concerning fiction indexing. The thesis also investigates which automatic text analysis methods that can be effective for automatic indexing and genre classifying fiction. To show that it is possible according to philosophy of language to index fiction, in particular to automatically index it. Wittgenstein?s, Barthes? and Ricoeur?s language and fiction theories are presented and used to problemize the subject.

Tomo Hugglink (TOMO Skog) is an innovation for harvest and transport of biofuels. The system consists of a truck, a chipping unit and crane mounted on a link and a wood chip trailer. The system works in such a way that the chipping unit is disconnected and placed on the site and wood chips are loaded directly into the wood chip trailer.The aim of this study was:- To examine the performance of the TOMO Hugglink system under different conditions such as the size, placement and quality of the pile.- To calculate the cost per raw ton for two vehicle combinations at different transport distances and to examine the effect of a reduction in set-up time and an increase in load weight.- To identify possible improvements with the TOMO Hugglink system.A time study was conducted within the thesis work to make it possible to determine production and time consumption. In the subsequent economic analysis the cost per tone at different transport distances was calculated for two different lorry concepts. Furthermore the effect of a reduction in set-up time and an increase in load weight was calculated.Under current conditions the utilization of the chipper is low and only 29 % of the total system time is occupied by chipping.

The Island of Öland has one of the best wind climates for land based wind power in Sweden. An objective for the Island is to become self sufficient using electricity from renewable source of energy such as wind. There is currently 55 MW capacity installed on the Island and it is estimated that grid congestion will occasionally occur if more than 135 MW was installed.The aim of this thesis is to investigate he possibilities for load management by smart charging of electric vehicles, EV. The definition of smart charging is that the charging is done to some extent with an ICT-system, (information and communication technology) that correlates wind electricity generation to the charging of electric vehicles. The purpose is to avoid grid congestions on the sub-sea cable that connects Öland to the mainland because that in turn would curtail wind energy production.

Går det att förutspå framtida aktiepriser genom att undersöka hur priser, på samma aktier, rört sig historisk? För att undersöka detta har vi använt oss av teknisk analys. Denna uppsats undersöker om teknisk analys på stockholmsbörsen kan användas för att uppnå högre avkastning än en s.k. Buy and Hold Strategi. I undersökningen används Relative Strength Index som teknisk analysmetod för att försöka förutspå framtida upp- och nedgångar i aktiepriser på tjugofem av de högst omsatta aktierna på Stockholmsbörsen.

Den tekniska utvecklingen har lett till att massiva mängder av information sänds, i höga hastigheter. Detta flöde måste vi lära oss att hantera. För att maximera nyttan av de nya teknikerna och undkomma de problem som detta enorma informationsflöde bär med sig, bör interaktionskvalitet studeras. Vi måste anpassa gränssnitt efter användaren eftersom denne inte har möjlighet att anpassa sig till, och sortera i för stora informationsmängder. Vi måste utveckla system som gör människan mer effektiv vid användande av gränssnitt. För att anpassa gränssnitten efter användarens behov och begränsningar krävs kunskaper om den mänskliga kognitionen.

Our intention with this work has been to examine if books in one particular subject share the same ideology, or if they contain several different ideologies. We have chosen to study and analyse books that deal with death and grief. We suggest that we will get an idea of how society looks upon death by examine how death is presented in books for young children. We have studied and adopted well-known writers on the topic to give sufficient background to our research. In the main public library of Gothenburg we found the latest bookindex of different themes recommended by Bibliotekstjänst.

Evidensbaserad praktik inom socialtjänsten förutsätter att de professionella ställer sig positiva till forskningsbaserad kunskap om insatser och användandet av bedömningsinstrument. I vår studie undersöks vilken tilltro socialarbetare på vuxenenheten i en mindre stad har till bedömningsinstrumentet Addiction Severity Index (ASI). Studien är en kvalitativ undersökning och semistrukturerade intervjuer valdes som metod för att besvara syfte och frågeställningarna. Sammanlagt har sex respondenter intervjuats varav fyra handläggare, en projektledare samt enhetschefen på verksamheten. Forskning visar att handläggare upplever olika fördelar och nackdelar i användandet av ASI.

In offshore oil production FMC Subsea systems use a product called cap. The cap´s mainly task is to protect hubface and seal areas on inboard hub against dirt, corrosion and mechanical damage under installation of a subsea system. A new model of a cap has been designed and analysed using finite element method. The model is called KC3-12 and has a new function, emergency release, which is a backup method for the ROV (remote operated vehicle) to release the cap from the hubface when it is placed under water. The cap KC3-12 was found to fulfil the criteria under the test load pressure, according to ASME VIII, div2.

The purpose of this study was to understand how social workers experienced working with Addiction Severity Index (ASI) in relation to the goal set by the National Board of Health and Welfare. The method is spread nationwide and therefore it is of great importance to examine how the social workers themselves experience the demands and the resources surrounding ASI. We choose to do a qualitative study interviewing eight social workers at six different occasions. The result was analyzed using Max Weber?s ideal type bureaucracy and Michael Lipsky?s thesis on street-level bureaucrats.

Today?s climate changes will probably give rise to precipitation in Sweden, which will cause more floods in Swedish rivers. Many of the Swedish rivers are regulated and have lots of hydro-electro power plants. Higher floods in the rivers will give greater water loads on the dams, which mean that a higher discharge through the sluice gates and in the spillway channels is needed. High discharge of water in a spillway channel can create scour of the material in the channel.