District heating covers around 80 % of the heating demand in apartment buildings and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. Through the combined production of heat and power the CHP-plants often reaches an efficiency of 90 % from energy in the fuel to produced heat and power. In order to keep the efficiency high it is important for the owners of the plant to have good knowledge about the plants performance at different operation points. Strängnäs Energi AB initiated this diploma work together with FVB Sverige ab in order to come up with a program for short term planning of the production of heat and power at the company´s CHP-plant.The work consists of three main parts.

This report studies the possibility of using some sort of radio sender and transmitter in order to position skis lost in powder snow. It is concluded that a RF-solution on the 433 MHz frequency should be the most efficient. Different forms of directional antennas are examined and studies show that in theory the best suited is the so called ?Yagi-Uda antenna?. A solution based on using a Receive Signal Strength Indicator value together with the above mentioned directional antenna is developed.

I takt med att inköp har fått en allt mer betydande roll inom företag krävs det också att strategier för inköp utformas på ett sätt som möjliggör att de kan efterlevas och följas upp, framförallt när det rör sig om koncernövergripande strategier som kräver samordning. I dagsläget är det inköpsrådet på Saab som styr över och samordnar projekt och initiativ som sker inom inköp. Inköpsrådet ansvarar även för framtagandet av inköpsstrategier och arbetet utifrån dessa för hela koncernen. En första klassificering av Saabs leverantörer utefter Kraljics matris genomfördes år 2010 och i samband med detta har ett ökat intresse påvisats för att på ett differentierat sätt mäta och följa upp leverantörer. Syftet med studien är därmed att se vilka Key Performance Indicators (KPI:er) som är tillämpliga i en indelning av leverantörer enligt Kraljics matris, det vill säga om olika KPI:er är fördelaktiga för att genomföra mätning och uppföljning av olika typer av leverantörer enligt Kraljics matris.En betydande slutsats med indelning av KPI:er enligt Kraljics matris är att studien ska påvisa vilka mätetal som är mest väsentliga att ha vid uppföljning av leverantörer kopplade till respektive kvadrant i Kraljics matris.

The thesis presents an optimally designed kinematic structure for a new 6-DOF haptic devicebased on TAU configuration. The configuration of the TAU-2 proposed by Suleman Khan andKjell Andersson [1] was modified and its mobility was verified by using Grübler criterion tohave a 6 DOF. Analytical kinematic models for the inverse and forward kinematics weredeveloped for the haptic TAU configuration to determine a set of optimal design parameters.Kinematic performance indices such as volume of the workspace, kinematic isotropy and payload index, were defined based on the singular values of the Jacobian matrix. The Jacobianmatrix was scaled to homogenize the physical units. The Jacobian matrix dependent on theposition and orientation of the end-effector gives local isotropy and pay load index, so globaldesign indices were defined, which represent the performance of the mechanism in the wholeworkspace.

The aim of the study was to understand how an elementary school interpreted and worked with the law Skollagen (SFS 2010:800) concerning special needs in school additionally in which way a neuropsychiatric diagnosis might interact with the interpretation. To answer the aim we used following research problems: How does the school define the term special needs and special resources itself? How does the school identify pupils with special needs and work with them? In which way does the neuropsychiatric diagnosis affect the interpretation of the law concerning special needs when it comes to deciding whether a pupil is in need of special recourses? Skollagen (SFS 2010:800) does not define special recourses and does not indicate how the school should use them. We were therefore interested in how an elementary school defined the term and decided to work with it. We based our study upon interviews with 6 respondents whom are central in the process of providing special resources for children in school.

The research objective of this thesis was to conduct a holistic evaluation of an operational information system. By holistic evaluation we mean that an equal focus was placed on both the system system perspective and its users user perspective, in the actual environment where the system and its users function contextuality. In addition, the methodological objective of the study was to test a new research approach in a real life setting. The participants of the study were twenty newspaper journalists employed at Göteborgs-Posten GP. The information system NewsLink is a manually indexed full-text database containing all articles published in GP since 1994.

Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

This thesis processes the work of developing CPU code and GPU code for Thomas Kaijsers algorithm for calculating the kantorovich distance and the performance between the two is compared. Initially there is a rundown of the algorithm which calculates the kantorovich distance between two images. Thereafter we go through the CPU implementation followed by GPGPU written in CUDA. Then the results are presented. Lastly, an analysis about the results and a discussion with possible improvements is presented for possible future applications..

This thesis processes the work of developing CPU code and GPU code for Thomas Kaijsers algorithm for calculating the kantorovich distance and the performance between the two is compared. Initially there is a rundown of the algorithm which calculates the kantorovich distance between two images. Thereafter we go through the CPU implementation followed by GPGPU written in CUDA. Then the results are presented. Lastly, an analysis about the results and a discussion with possible improvements is presented for possible future applications..

This paper appeals to professionals working with green questions. It intends to create a discussion about which plant species that can be established in a fieldlayer of a naturelike planting on fertile agricultural land. To initiate the essay, a studie of which values that can be connected with an establishment of a fieldlayer was performed . A part of Tor Nitzelius Park in Alnarp, a so called naturlike planting on fertile agricultural land, was used as a model for the choice of species. With the aid of soil values, photos and a list of current species, interviews with four ecologists were performed.

Uppsatsens titel: Technology-to-Performance Chain: Game ModelInlämningsdatum: 2006-05-26Ämne/Kurs: INF 630 kandidatuppsats, 10 poängFörfattare: Marcus BjörckDennis JonovskiHandledare: Hans-Christian StoltzNyckelord: TPC, TTF, GameFlow, tid, upplevelseSyfte: Att ge spelutvecklare en grundläggande och överskådligmodell som är anpassningsbar inom spelutveckling.Metod: Vi har använt oss både av kvalitativa och kvantitativa metoderpå en grund som kan liknas vid en abduktiv ansats. Primärdatainsamlas genom en pilotstudie, en enkät samt två intervjuermed spelutvecklare från spelutvecklingsföretag.Teori: TPC och GameFlow ligger som underlag för vår teoretiskareferensram och grundar formandet av en ny modell vid namnTPC G. Vidare ger TPC G en gemensam bild av hur de tvåförstnämnda teorierna integreras med varandra.Empiri: Utifrån enkäten och intervjuerna har det framkommit attupplevelsen är det primära för användaren av datorspel och attdetta ger svar på hur bra egenskaperna kombineras i spelet.Resultatet av enkäten visar att många datorspelsanvändareupplever tidsåtgången som besvärande. Då tidsaspekten är enavgörande faktor för hur datorspelet uppfattas som helhetmedför detta problem även för spelutvecklare.Slutsatser: Genom att applicera TPC G hjälper systemutvecklingsmetodikspelutvecklare att uppfatta hela utvecklingsprocessentidigt i utvecklingsfasen. I modellen ses även tidsaspektensom en avgörande faktor där spelarnas och utvecklarnasuppfattning inte överensstämmer..

In 1996 a hunting test for British gun dogs was started in Sweden, based on a similar one al-ready in place in Norway. The aim of the new test was to describe the hunting ability of the dog and to use the results as a basis for selection. However, up to now, no genetic study of these data has been done. Therefore the aim of this study was to estimate genetic parameters for the traits measured in the hunting test and to investigate whether the traits can summarized into fewer overall measures. Data from trails of British gundogs between 1996 and 2005 in Sweden were used to estimate genetic parameters and environmental effects in hunting performance. British gundogs consist of five different breeds: Pointer, English setter (ES), Gordon setter (GS), Irish red setter (Irl S) and Irish red and white setter.

This thesis processes the work of developing CPU code and GPU code for Thomas Kaijsers algorithm for calculating the kantorovich distance and the performance between the two is compared. Initially there is a rundown of the algorithm which calculates the kantorovich distance between two images. Thereafter we go through the CPU implementation followed by GPGPU written in CUDA. Then the results are presented. Lastly, an analysis about the results and a discussion with possible improvements is presented for possible future applications..

Feedback is a tool that can be used to give students the confirmation of their accomplishments , helping them to increase understanding of the results of a performance and to alert students if change is required for future performance. Other studies and reports regarding clinical practice in education has shown that students feel that feedback has good impact on learning and positive effects such as enhanced self-confidence. Onboard training forms a major part of the education at the four-year nautical science education in Kalmar, in four years, one year is spent on board ships. Therefore, the purpose of this study was to find out how students at the four-year nautical science program in Kalmar felt that they receive feedback after completing on board training and how they wish that such feedback would be given. Six students were interviewed, three from grade one and three from grade three.

Evaluating and choosing suppliers based on price alone, has traditionally been the dominant strategy for supplier selection within the purchasing function. With the origin of the Total Cost of Ownership (TCO)-concept in the early 1990s, a new philosophy dawned that promoted the importance of knowing the effects of supplier performance on the buying firm?s internal costs. Since then, scholars have been arguing the case of TCO as a viable model for making purchasing decisions and conducting supplier evaluation. Still, after two decades little is known about its penetration and impact on the practices of buying corporations, leaving the questions of which costs are included in the purchasing organisations? decisions unanswered, and even more importantly why certain costs are considered and others not.