In this thesis a possible cost effective runner change of some of the units in the hydroelectric power station Olidan is investigated. The possibility to drive a unit at the same efficiency point through a change of the turbine shaft speed and the rate of discharge is tested. Furthermore the theories behind model testing, determination of efficiency increase from model to prototype and efficiency measurements shall be discussed and analyzed with Olidan as a starting point.A predicted curve has been built on information from model tests and field measurements on the existing runners and runner data from the test of the new model. The predicted curve shows the difference in efficiency between an existing runner and a modern one. It is the difference in efficiency that is used in the calculations that are to show whether changing to a pair of new runners will be cost effective or not.

In this paper we investigate how the possibility of mobility affects the frequency of blogposts andthe use of pictures in blogs and the content of the pictures. The purpose of this paper is toinvestigate what bloggers do with the possibility of mobility and how it effects the blog. Here weonly focus on smartphones. We focused our theory on communications and what mobility can offerto communication. To investigaste our subject we chose an combination of a qualitative and aquantitative study.

Examensarbete beskriver hur ett analysverktyg har skapats för materialförbrukningen på Motorunderhållsavdelningen på Volvo Aero Corporation. Analysverktyget tar fram snittlistor och inköpslistor till motorn PW100. Dokumentering vid skapandet av analysverktyget sker i sju delar.Genom att skapa ett analysverktyg kan de strategiska materialplanerarna på Volvo Aero lätt generera en snittlista eller en inköpslista som baseras på historisk data. Tidigare var de strategiska materialplanerana tvungna att beräkna snittlistor manuellt och mycket handpåläggning gjorde att resultatet inte alltid var pålitligt.En förstudie gjordes för att få en bättre inblick i den nuvarande organisationen och hur arbetet styrs på motorunderhållsavdelningen på Volvo Aero. Intervjuer utfördes löpande samtidigt som en litteraturstudie inom området logistik gjordes.

The purpose of this master thesis was to examine how the corporations quoted on the A-list on the Stockholm Stock Exchange were affected by the introduction of IFRS 3 Business Combinations. Their opinion about the accounting rule and the acquired goodwill in particular was focused as well. The authors wanted to see if there were any changes in ROE, return on equity, after the introduction of the new accounting standard.Data for this study was collected through interviews, questionnaires and annual reports. Interviews were held with corporate accounting managers of Assa Abloy, WM-data, Electrolux, Ericsson and SCA. Questionnaires were sent by e-mail to 50 companies and were answered by 30 of them.

This essay, with the title: Among children, laser swords and lions. ? How do we approach and utilize the cultural experiences of children? is an approach to participate in a scientific discussion in the field of cultural experiences. This text is an attempt to show the importance of paying attention to, how children express themselves, and place their activities in social and cultural contexts. By doing so and approaching children and their activities with an intercultural point of view, I can use my new found knowledge and use it to stimulate their future learning progresses in different fields.

Safety and risk management currently have a starting point based on the negative outcome of safety, thus the lack of safety. The starting point for the thesis is to find a way to measure the positive outcome of safety through ergonomic aspects regarding chemical plants that are covered of the Seveso II Directive.Through a literature study of safety and ergonomics fourteen key aspects of safety were found. Safety Performance Indicators (SPI's) are used to assess the fourteen identified proactive indicators of safety. An analysis in three steps - called risk status assessment - is design to give an SPI its value. A pilot study of the risk status assessment was performed at the ethanol producer Lantmännen Agroetanol in Norrköping, Sweden..

Tusentals budskap tävlar om konsumenters uppmärksamhet varje dag och det blir allt svårare för företag att kommunicera sina budskap till potentiella kunder. Användandet av kundrecensioner för teknik- och mediaprodukter har bevisats påverka försäljningen av dessa produkter positivt. Denna uppsats syftar till att ta reda på om kundrecensioner är ett bra marknadsföringsverktyg för resor, som är mer komplexa produkter än de som nämnts ovan. Frågan är om kundrecensioner kan hjälpa researrangörer att särskilja sig från konkurrenter samt hur recensionerna bäst utformas för att öka deras försäljning av resor. Det finns 187 svenska researrangörer som erbjuder paketresor till utländska destinationer. Denna studie inleds med en kartläggning av 37 av dessa researrangörer; de som har kundrecensioner på sina hemsidor.

The purpose of this essay is to perform an evaluation regarding retrieval performance of three web search engines. The search engines included are All the Web, Alta Vista and Google. These have been tested using ten queries within different subject areas chosen by the author. The first twenty hits for each question have been analyzed for relevancy. Relevancy is judged on a three-point scale; 0, 0,5 and 1 where 0 goes to irrelevant and inactive or duplicate documents, 0,5 point goes to partially relevant documents and 1 point goes to highly relevant documents.

Teaching in pre-school usually takes its starting-point in children?s reality and curiosity. Apart from that it has also been important to take contains of a special subject under consideration, for example development of language and communication or mathematics development. The purpose of this study was to investigate how natural science as a special subject in pre-school education is expressed by five trainee teachers when they teach children at the age of 2-7. Generally the study focuses on the students? teaching actions as well as their line of argument about their teaching and the choices they have to make.

In this thesis we study four groups of students in grade 8, 9 and 10 when they try to solve a classical mathematical problem: Which rectangle with given circumference has the largest area? The aim of the study was too see how the students did to solve a mathematichal problem?The survey shows that students have rather poor strategies to solve mathematical problems. The most common mistake is that students don?t put much energy to understand the problem before trying to solve it. They have no strategies.

The aim of this thesis is benchmarking of the program, based on dynamic programming, that earlier was written to imitate the production planning at TSS.This thesis starts with a chapter about the construction of the DP-program, a shorter description of one and each of the program parts and also a list over the in- and output data in each program part. The DP-program consists of six linked MATLAB-files that together produce an optimized production plan for the different planning groups at TSS. The program reads in and reformat the given data and optimize the production of the articles in one group. Finally it compounds all article production plans and give us a production alternative.After running the program with new data the result shows, resembling with previous results, that TSS could be able to make some distinct cost-savings. According to the program, a 50 % decrease of TSS production costs is possible. .

Weaning is one of the most critical events in the piglet production with problems such as growth check and post-weaning diarrhea as a result. The lighter the piglets are when the growth check occurs, the harder they have to get back to normal growth rate. Creep feeding of piglets is used to reduce the problems by increasing the weaning weight and adapting the digestive tract to a starter diet. Hodge (1974) showed that the sow?s milk can not provide enough nutrients for maximal growth rate.

The margin in crop production is more and more less and it forces the producer to check out how to reduce the cost of establishment of new crop. One way to reduce the cost in establishment is to begin with plough less farming. It saves money and time compares to conventional soil preparation with plough and harrow. Not all soil types are god for plough less farming and should be continued with ploughing (mainly light soil), but other soil types working very well with plough free farming. If you want to success with plough less farming you have to think in new lanes. One of the things you have to think about is to not grow too much cereal after cereal. Low stubble is important when you harvest the crop and also to spread and chop the straw well. I have in this work interviewed some farmers and farm advisers in Östergötland to see which thoughts they have about plough less farming.

This master?s thesis report is a summary of the analysis performed together with ITAB Shop Concept located in Jönköping, Sweden. As a last element of the Master?s program at the School of Engineering, this 20 point level D thesis project has been the final work to bring my education to an end.ITAB Shop Concept expressed an aspiration that the Shop Counter Program B10/B11 should undergo an analysis to point out and possibly lead to improvement.Through interviews and data collection proposals for possible improvements has been drawn up and the analysis points out current deficiencies. By following the idea generation, proposals to solutions for every individual problem is presented.

The purpose of this thesis is to identify the most important establishment criteria for companies whointend to do a new establishment. There are differences between regions regarding attraction on startup.Some regions have few new businesses while others continuously expanded its activities in variousfields. The biggest focus on the thesis is the Gävle- Borlänge region where MellansvenskaHandelskammaren is active.Mellansvenska Handelskammaren saw a need for the assignment after the magazine ?IntelligentLogistik? ranked the Gävle region at 15:th place and Falun/Borlänge at 20:th place in the list over thetop 25 best logistics locations in Sweden. This made them wonder what could be made to develop intoa better area with more amenities and a better place in the ranking of the magazine.