The thesis investigates if it is possible to replace several pumpimpellers with one controllable pumpimpeller, with a economical and a manufacturing analisys aspect. The studied pumpimpeller is mounted on a midrange wastewaterpump, N3127MT.In the thesis a contemplated manufacturing process is evaluated for a concept that are supposed to act as a controllable pumpimpeller. The pumpimpeller are studied in a manufacturing and flow matter and are presented in the thesis.The manufacturing cost is also estimated, and this has been compared to the storage cost and other costs that the existing pumpimpeller generates.The thesis also shows that the concept has minor losses in cutting quality aswell as the effiency comparing to the existing pumpimpeller.The concept also raises the manufacturing cost and this increasing cost makes the presented concept to expensive to carry through.An investigation of the costs that the existing pumpimpeller produces has also been done, and this shows that there is not that much expenses to earn regarding to for example the storage cost. The storage cost includes information from Flygt?s central storagecenter in Lindas, Sweden and Metz, France, and also an inventory about the pumpimpellers located at Flygt?s different distributors worldwide.The thesis shows that a controllable pumpimpeller will generally increase the cost for the pumpimpeller and the performance of the pumpimpeller will decrease..

This paper deals with village history around millstone quarry Eastern Utsjö in Malung, Sweden, in the hope of finding deposits that could date the quarry, in that the quarry in the current situation is dated only by the millstone fragments outside the resort. My purpose was to conduct a discussion on the quarry alone can be dated by deposits outside the resort. I have used FMIS RAÄ:s fornsök and a lot of literature to identify village history. The results showed that it is not possible to date the millstone quarry from village history, but through deposits outside the resort of Malung, which have been found around Mälardalen, Sweden through archaeological excavations, and derived from the millstone quarry Eastern Utsjö, can put an age on the quarry..

In Sweden today so-called "prescribed nature conservation burning" is performed due to the change in silvicultural law, certification and an increased knowledge regarding the field of fire in the forest landscape. The aim is to re-create structures and qualities made by the fire regimes of the past, though on a much smaller geographical scale. The structures and qualities to be re-created are for example broad leaf stands, trees with large diameter, heterogeneous stands regarding variables such as age and diameter. If we increase our knowledge of the constitution of forests characterized by fire, then we will be able to set goals for what achievements to reach both on landscape scale and stand scale. The aim of this paper is to try to describe how a stand from the past was composed regarding mainly the spatial arrangement and compare it with the stand of today in the same place. This to be done by using relict material, that is stumps and dead standing trees.

The aim with this study was to investigate the effects a change of manufacturing process would have on the mechanical properties of drill bits made of a WC/Co composite used for stone cutting. The method used today is sintering, where the material is heated in a conventional sintering oven. The other method was microwave sintering, where the material is heated by radiation in the microwave region. Also an investigation of the manufacturing cost were made.The main difference between the two heating methods is that the conventional way is a rather slow process and the microwave method is very fast. The material is also heated homogeniously in the method with mirowaves, aposed to the case with the conventional sintering where the material is heated from the outside in.This makes the material harder and more wear resistent.

Med utgångspunkt i aggregerade och individuella inkomstdata diskuteras vilken roll upphovsrätten spelar som incitament för det kreativa utbudet i stort. Resultaten visar att kreatörer får små andelar av sina inkomster från upphovsrätt och obetydliga andelar från direkt från upphovsrätt, med vissa skillnader mellan olika grupper av skapare. Kreatörernas inkomster fördelas ojämnt och de små inkomsterna från upphovsrätten fördelas extremt ojämnt. Mot bakgrund av redan existerande utbudsöverskott samt omfattande substitut för upphovsrätten bedöms upphovsrättens incitament som svaga för utbudet i sin helhet..

The costs of logging and of transportation with truck are dominating the total cost of wood delivered at industry. To support the profitability for the members' forestry the processing and handling with the timber has to be as efficient as possible. Increased length of pulpwood in thinning is one conduct that can result in higher productivity and/or lower costs. The study is scaled as a system analysis with the aim to exemplify the differences between working with 3- and 4-meter as standard length of pulpwood, related to biological aspects, timber receipts, cost of logging and cost of transportation with truck. Important aspects are if the change is technically and biologically feasible and economically profitable.

The company Somas, Säffle, has assigned Fredrik Kjellin the project of finding out how ?KVTF DN250?, one of their own valves, reacts on cutting forces under production. They wish to know if and then how much it?s possible to minimize the wall thickness of the valve with neither plastic nor to big elastic deformations caused by processing.The most critical processes have been identified as rough lathing. The study has shown that the marginal for a wall thickness of two millimeters, to fall short of the yield stress in the most critical process, is good.

The higher status homestead called Kullen is located on top of a small hill just outside of Hova in V?stra G?taland. The house stands on a plateau surrounded by a stonewall. Aerial photos from the 1960?s shows what looks like a big parklike garden behind the house, with a gravel walk cutting through on the length of the garden up to the house.

SECO Tools manufactures tool inserts for all types of metal cutting machining. (Ti,W)C is a common raw material used in the production. At arrival, the material (Ti,W)C is always analyzed. Titanium has previously been analysed with x-ray fluorescence spectrometry, but as the calibration has previously been performed with two different types of titanium (rutile and metallic titanium), the results has differed. Because of that, this thesis project has been devoted to analyze titanium, to find the best titanium compound for producing standards.The work has been performed using literature studies and many experiments in the laboratories at SECO Tools inFagersta,Sweden.

Two field experiments were conducted in central Sweden in order to: 1) Determine a relationship between the number of approaching pine weevils (Hylobius sp.) and the number of attacks by pine weevils, in relation to the size of seedlings of Scots pine (Pinus sylvestris). 2) Determine if application of methyljasmonate (MJ) on seedlings of Scots pine will result in higher resistance towards attacks by pine weevils and/or have any effect on the number of approaching pine weevils. The field experiments were designed with two separate parts in close vicinity on the same clear cuttings: a) pitfall traps placed in patches of scarified soil that caught approaching pine weevils at 2.5 cm from the bait, which consisted of different sized seedlings of Scots pine some of which were subjected to application of MJ and b) the same type of seedlings planted out in patches of scarified soil. The first field experiment was conducted on a 1-year old clear cutting outside Uppsala in east central Sweden and the trapping part of the experiment consisted of 8 blocks with 6 treatments: 1) control, 2) small over-wintered seedling, 3) medium sized seedling, 4) medium sized seedling treated with 0.5 ml 100 mmol MJ 4 days prior to start of experiment, 5) large seedling, 6) vial with 9.5 ml of ?-pinene. The trapping experiment lasted for 6 weeks in the early summer.

Background: In 2001 the European Commission presented legislation to require use of IASB standards named IAS/IFRS for all listed parent companies within the EU no later than 2005, to improve an internal market for financial services within the EU. This harmonisation of the accounting regulations answers to the social development of today with land-frontiers easier to cross, increased demands on an open financial market and the companies searching for risk capital outside the boundaries of the own country. International comparisons within accounting have consequently become more of current interest and necessary. When the requirement to use the IASB standards only is intended for the group accounting the remaining question is according to which regulations the parent companies will set up their annual financial reports. In Statens Offentliga Utredningar 2003:71(Swedish Government Official Reports) the parent companies are suggested to be given an opportunity to apply IAS/IFRS also in the annual financial report.

The purpose of this study was to determine if wellness benefits led to any changes in exercise habits among employed postmen. The study was a cross-sectional study carried out by a quantitative method. The collection of data took the form of a questionnaire. The sample consisted of 30 postmen employed at a post office in northern Sweden. The results show that of the postman who use health care benefits, there has been a relatively small change in exercise habits.

2004, the SSR, Akademikerförbundet, made a study on the threats and violence as a social secretary in the municipal social services are exposed in their occupation of the "social secretary of threats and violence at work" (T-110192), conducted by Temo ab. We have chosen to use the study on a smaller scale and then made contact with five municipalities in the middle of Sweden to investigate social secretaries experiences of threats and violence. Using the cross-sectional design and a convenience sample, we have gained access to data from 56 people. From a sociological perspective, we have chosen to use Norbert Elias theory of universal configuration and interdependence, and Michel Foucault?s theories concerning power search explanation for the existence of threats and violent situations in the contact between social workers and their clients..

The aim of this study has been to investigate a group of upper secondary school teachers? approach to work with the ethnic multi-culturalism that characterises the Swedish society of today and to point to the obstacles and possibilities the teachers see to work with this. With the help of interviews with eight teachers satisfying results could be reached. The results showed that it was possible to distinguish three different ways to think and act when it comes to the work with ethnic multi-culturalism in school and teaching. The approaches entailed different consequences on the way the teachers conduct their teaching.

Föreliggande studie vill undersöka hur fyra verksamma lärare i svenska som andraspråk, enligt dem själva, förstår och undervisar literacy i ett multimodalt samhälle. Genom en kvalitativ metod har de fyra lärarna intervjuats enskilt och deras svar har sedan placerats i redan befintliga teman från en studie av Cross (2011) som, tillsammans med ett sociokulturellt perspektiv, utgör teoretiska utgångspunkter och analysverktyg för denna studie. Det analyserade resultatet visar bland annat att lärarna fokuserar mycket på sociala och kulturella praktiker vid literacyundervisning och att de inkluderar multimodaliteter i begreppet literacy men att det får olika mycket utrymme i undervisningen beroende på tillfrågad lärare..