The purpose of this report is to examine various roof structures that can operate in a warehouse with large spans. The building that is examined in the report is currently under construction, and the roof construction has already been selected. The selected roof system will therefore be compared with some other structures and materials that have been possible. The report will evaluate three different frame materials, two insulating barriers and two overlaying materials. Another important part in major construction projects is the roof safety.

Samhällets resurser är begränsade och en prioritering av olika verksamheter nödvändig. Cost-utility-analysen är en typ av ekonomisk utvärdering som syftar till att utgöra en del av beslutsunderlaget vid prioriteringsbeslut. Uppsatsen gör en cost-utitlity-analys av den ickefarmokologiska hypertonibehandling som genomförts vid Vindelns hälsocenter på individer där traditionell behandling inte haft önskvärd effekt på blodtrycket. Det sänkta blodtryck deltagarna på internatet erhöll minskar riskerna att drabbas av hjärtinfarkt eller stroke. Cost-utitlity-analysen inkluderar både till behandlingen relaterade kostnader och inbesparingar samt framtida till behandlingen orelaterade kostnader, som en följd av att individiden lever längre när riskerna minskar.

This thesis has been focused around the Diels Alder reaction with the goal to design an enzyme catalyzed reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating reaction barriers or even reaction energies for the Diels Alder reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.

This is a master thesis work carried out at the Department of Energy and Environment atthe Division of Electric Power Engineering. The master thesis work describes the theoryof distance protection relaying in 130 kV meshed distribution networks. The main aim ofthe thesis was to construct an Excel application for calculation and documentation of thesettings for distance protection relays. The program is based on general methods forcalculating settings of the different zones for the distance relay and presents the settingsin simple graphics using quadrilateral characteristics.The reason for building an Excel based application is the great variety of distanceprotection relays in live networks. The manufacturers of distance protection relays makeprogram for documentation available, however, they are based on the typical settings forthe specific relays.

Sten Jonsson wants to start a production of an advertising catalogue for small companies in Sweden. Acatalogue where the advertisingcost is so low that most of the companies can afford to participate. Thecompanies who will advertise should be manufacturing companies in trades of carpentry, sheet metalworkshops, forging workshops and engineering workshops.The catalogue will facilitate for the manufacturer to reach the costumer without any middleman.Without a middleman creates a possibility for an opinion about the product at the same time as theprice can be held low. A catalogue of this type would benefit the marketing of the companies at the sametime as it would generate an occasion for innovations.The possible target groups are property companies, construct companies and farmers.A market research has been carried out contained a postal interview and a phone interview. Themarket research carried out to get an understanding in what the companies think about the idea butalso to see if the companies are in interest of advertise in the catalogue.

This project is implemented as a thesis at the Royal Institute of Technology in the master?s degree program Integrated Product Design and Industrial Design Engineering. The project has involved development and efficiency of a free starter package for expectant parents with useful content consisting of useful products for both before and after childbirth. Areas that have been investigated include packaging development, service design and appropriate content for the package.During the work, theory about packaging design, materials, manufacturing techniques and logistics have been processed to base the further work on. The project process has involved competitor analysis and interviews with store owners and customer surveys, that have been conducted to identify areas for improvement of the current solution.

This thesis concerns how the power quality in the grid is affected by the connection of wind power plants. As things are at present, Fortum Distribution AB has a number of wind turbines and wind parks connected to the own grid. As the pressure on building and connecting additional wind power is increasing, so is also the interest of how the already existing wind power generation affects the power quality in the nearby distribution grids. The study is performed by direction of Fortum Distribution AB and is limited to the 10 kV/40 kV-grid in Bohuslän, Sweden. The methods for calculation of power quality are compared to the results of a number of measurements.

Tasmania is a state in Australia, and is also the country?s largest island. It is separated from the main land by a 429 kilometer wide strait. Every year, a large amount of people, cars and goods are transported to the island using a government owned ferry line, which generates approximately 300 million Australian dollars to the state?s economy ,every year. This bachelor thesis investigates the possibility of reducing the fuel consumption for the ferry traffic to and from Tasmania, which would also reduce the overall cost.

Vi lever i en föränderlig värld där aktiemarknaden är en komplex miljö. Att fatta välgrundande beslut på aktiemarknaden är svårt för investerare, som  därmed samlar in all den information som finns tillgänglig. Den redovisning och information som företag lämnar ifrån sig är utformad genom en avvägning mellan kostnader och nytta, som kallas Cost Constraint. Ytterligare en avvägning som företag använder sig av gällande upprättandet av redovisning är att inte ge ut för mycket information och därmed ?skydda? sig från konkurrenter.Studiens huvudsakliga syfte är att kartlägga och jämföra hur investerare och banker tar beslut baserat på den redovisning som företag publicerar, som kan vara påverkad av Cost Constraint.

A current conveyor is an active building block that can be used to implement most active and passive components. It differs from the operation amplifier in that it uses current instead of voltage. The current conveyor also has significantly higher voltage gain over a broader frequency range. To simplify the construction of analogue circuits and increase the construction efficiency it is desirable to use a top-down methodology. This means that the whole system is partitioned into a hierarchy of subsystems.

In recent years, the Swedish railway track system has been neglected in terms of capacity and maintenance. To adapt the existing system to current traffic load there is a great need for extensive improvement and maintenance. Shortcomings are especially occurring on older embankments running over soft subgrades. To select the most suitable method for reinforcement of the embankment, it is important to evaluate different solutions from a life cycle cost perspective. In long-term perspective, it is often shown that a method with low investment cost causes a higher maintenance cost and a shorter technical lifetime.

Background: Many companies have outsourced their IT-operations and their expectations of what this IT-outsourcing will contribute to the business are high. Cost cuts are not always a natural outcome of IT-outsourcing. Many companies that have outsourced their IT-operations consider it to be problematic and complex to exercise management control and reach cost control which was the purpose of the IT-outsourcing. Purpose: To describe and analyze what affect IT-outsourcing has on a company?s management control system and a company?s possibility to exercise cost control.

Då producerande företag ska göra genomgripande verksamhetsförändringar såsom implementera produktionssystemet lean, kan det vara svårt att på förhand veta förändringarnas effekter.  Lean innebär att ledtider kortas men nya arbetssätt och verktyg bidrar till att kostnaderna initialt ofta ökar i förändringsarbete, vilket kan utmynna i en skepticism mot det nya systemet hos de anställda. Med hjälp av verktyg som mäter effekterna av förändringarna skulle denna skepticism kunna mötas. För att erhålla ett helhetsperspektiv ses produktion helst ur ett flödesperspektiv och idag finns inget bra verktyg som analyserar produktionsflöden ur både ledtids- och kostnadsperspektiv. Därför syftar detta arbete till att ta fram en modell för beräkning av ledtider och kostnader i ett produktionsflöde på ett sätt som möjliggör förståelse från flera olika intressentgrupper. Detta uppnås dels genom att den som använder modellen (1) erhåller en övergripande förståelse för flödets uppbyggnad och allokalisering av dess ledtider och kostnader samt (2) kan använda modellen för att analysera olika framtida scenarier vilka ligger till grund för förändringsarbetet.

Public procurement stands for a substantial part of the total food consumption in Sweden. The majority of the procured food is today imported and according to market trends it?s intended to stay that way. Imported food is favoured for locally produced due to price pressure. Consequently domestic pork farmers have declined by 25 percent during the last twenty years.

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.