The purpose of this thesis has been to develop a tool for modelling and simulating the nuclear plant Ringhals 3. The model should be used to improve the knowledge on the dynamics of the plant. Ringhals 3 is being upgraded to produce more power and a tool for analyzing the new operating conditions is needed.The work in this thesis has consisted of improving and developing an existing model of Ringhals 3 made with the modelling tool Dymola. The model has been validated by comparing the results of a simulated house load transient with data from the actual plant. Validation shows good agreement with data from the real plant.

Today there are many system development projects that break both budget and time plan. Often this depends on defects in the information systems that could have been prevented. The cost of test can in some cases be as high as 50 % of the projects total cost and it's at the same time an important part of development. Test as such has moved its focus from the software it self and its faults to a wider perspective on whole infrastructures of information systems where assure a good quality is important. Sogeti in the Netherlands have developed a test method called TMap (Test Management approach) that can be used for structured testing of information systems.

Volvo Penta has been producing boat engines since 1907 and are world leading in this seg­ment. They have today an extended range and also sell industrial power stations. Quality, safe­ty and environmental care are three core values for Volvo and together they strive to give their customers the right product with the right quality.Volvo has developed a production system named Volvo Production System, VPS, and one of the pillars is continuous improvements. Within this pillar you can find value stream map­ping, which is used to analyze the value stream through the process. This tool gives a wide perspective and helps to keep focus on the entire process instead of just parts of it.Volvo Penta in Vara has earlier done value stream mapping but without good results since they didn?t take set-up times and imbalances in account.

Mobiltelefonen är ständigt närvarande i vår vardag. Den är ett kraftfullt verktyg som hjälper oss med allt från att surfa på nätet till att kolla när bussen går eller att betala räkningarna. Den har också gjort att vi kan dela med oss av våra liv och hålla kontakten med våra nära och kära var vi än befinner oss. Kort sagt har den ändrat hur vi beter oss i de flesta situationer. Men alla dessa ändringar är kanske inte lika positiva.

The market for heavy duty engines is constantly requiring engines that should be more andmore powerful, while still maintaining low fuel consumption. As a result of increasing enginepower, the engine and coolant temperature increases as well due to insufficient coolingperformance (because of design issues, cost etc.).Also, emission legislations, both current and future, require more and more measures to betaken by engine manufacturers. One way of meeting the legislations is the use of cooled EGR(Exhaust Gas Recirculation), which also lead to increased coolant temperatures.Both these factors also naturally lead to increased engine oil temperatures, the consequencesof which are not thoroughly investigated.This thesis project aims to investigate effects of high temperatures on engine oil degradation,with focus on the greatest degradation process: oxidation. To do this several engine runs havebeen performed on a 310 hp engine with EGR to see what happens to the engine oil in a realengine when exposed to high temperatures. During the tests oil samples have been taken andanalysed for important parameters.As a complement to these engine tests some laboratory oxidation testing have also beenperformed, to be able to compare engine test data with laboratory tests.One goal of the project was to try to formulate an empirical oxidation model, which would beable to predict oil oxidation levels in an engine, given any running parameters.

The purpose of this thesis has been to develop a tool for modelling and simulating the nuclear plant Ringhals 3. The model should be used to improve the knowledge on the dynamics of the plant. Ringhals 3 is being upgraded to produce more power and a tool for analyzing the new operating conditions is needed.The work in this thesis has consisted of improving and developing an existing model of Ringhals 3 made with the modelling tool Dymola. The model has been validated by comparing the results of a simulated house load transient with data from the actual plant. Validation shows good agreement with data from the real plant.

The purpose of this thesis has been to develop a tool for modelling and simulating the nuclear plant Ringhals 3. The model should be used to improve the knowledge on the dynamics of the plant. Ringhals 3 is being upgraded to produce more power and a tool for analyzing the new operating conditions is needed.The work in this thesis has consisted of improving and developing an existing model of Ringhals 3 made with the modelling tool Dymola. The model has been validated by comparing the results of a simulated house load transient with data from the actual plant. Validation shows good agreement with data from the real plant.

Today there are many system development projects that break both budget and time plan. Often this depends on defects in the information systems that could have been prevented. The cost of test can in some cases be as high as 50 % of the projects total cost and it's at the same time an important part of development. Test as such has moved its focus from the software it self and its faults to a wider perspective on whole infrastructures of information systems where assure a good quality is important. Sogeti in the Netherlands have developed a test method called TMap (Test Management approach) that can be used for structured testing of information systems.

To be able to handle tomorrows need for limited energy consumption we need to reduce our use of energy. The building sector stands for around 40 % of all energy consumption in the society. The government has put up a goal to reduce the energy consumption in our buildings with 20 % by year 2020 and 50 % by year 2050 compared with year 1995. To be able to do reach that goal we need a more energy efficient building stock.The main part of the energy used in our buildings is used for space heating. By installing ventilation systems with heat recovery on the exhaust air it is possible to use the heat-energy in the exhaust air to warm up the incoming air.

Inom Polisen finns ett behov av att renodla verksamheten, då de med åren fått ökade administrativa kostnader. Ett projekt startades inom Polisen och Statens kriminaltekniska laboratorium, där all ekonomi- och personaladministration ute på myndigheterna samlades på ett och samma ställe i ett servicecenter förlagt till Linköping. Syftet med studien är att utvärdera hur måluppfyllelsen för de mål som sattes upp för projektet upplevs. Studien är av kvalitativ karaktär, med en fallstudieliknande ansats, där 18 intervjuer genomfördes med de anställda på servicecentret, samt flertalet ur projektets styrgrupp.Resultatet av studien är att organisationen har kommit långt med måluppfyllelsen, men att man inte har nått riktigt ända fram då studien visar att åtta av elva mål är helt uppfyllda i nuläget. Tre mål är alltså ännu inte helt uppfyllda, vilket kan bero på att många av målen är otydliga, kan tolkas olika och inte är så väl förankrade hos de anställda.

Partly as a reaction to a perceived crisis in contemporary democracy, the nineties witnessed an upsurge in different forms of citizens? fora, dedicated to the promotion of increased participation by the citizen in the political process. Youth councils are a special point in case as they entail the general characteristics of a deliberative forum, with an emphasis on political learning. This study aims to undertake an evaluation of a regional youth council in the region of Skåne in the south of Sweden. Through qualitative analysis, the study aims to portray the origin, purposes and consequences of such a forum.

Authorities, municipalities and county councils have great opportunities to pave the way to a sustainable society. In the public sector, the tax revenue is used and therefore it is important that both employees and societal stakeholders feel that they participate in the sector?s decisions and fields of application. Municipalities and county councils are primarily service organisations. The employees? commitment is necessary to be able to reach set goals, to develop procedures and policies that support the overall political goals, in other words, to be successful in the environmental work.

The issue of sick leave and an increase of ill health in the workplace is a social problem inSwedenthat is currently an important topic. Public human service organisations are one of the sectors where this is a major problem. The aim of this study is to examine what significance the leadership in public human service organisations has on the health and sense of well being among the staff within the organisation. We have chosen to look at this issue from a health promoting perspective where we focused on health factors and to what extent the management can influence and promote the possibilities for a healthy workplace with healthy staff. The results of the study are based on interviews with three leaders within the public human service sector.

The goal with this work is to study the settlement during the Middle Neolithic B. Looking at the settlement pattern of the Battle Axe C culture (BAC) in Scania we might be able to get a picture of how the social structure of the BAC looked like and how it differed from' earlier and later culture groups.. What can a change in settlement tell archaeologists today about this and what problems do archeologist have to take into consideration..

The purpose of this thesis has been to develop a tool for modelling and simulating the nuclear plant Ringhals 3. The model should be used to improve the knowledge on the dynamics of the plant. Ringhals 3 is being upgraded to produce more power and a tool for analyzing the new operating conditions is needed.The work in this thesis has consisted of improving and developing an existing model of Ringhals 3 made with the modelling tool Dymola. The model has been validated by comparing the results of a simulated house load transient with data from the actual plant. Validation shows good agreement with data from the real plant.