This thesis is done in cooperation with SWECO Energuide in Växjö. They have been assigned by SKB in Oskarshamn to renew their electrical power supply and the ancillary processing systems in their Central provisional storage of spent nuclear fuel, CLAB. Today in the CLAB facility, the spent fuel is cooled down with water pumps, driven by asynchronous induction motors, where the water is regulated by mechanical valves to the desired flow. After the upgrade, the engines will be powered by AC drives that can control the pumps by changing the rotational speed and thus change the water's cooling effect on the nuclear fuel. In this study, I investigated the interference AC drives causes the feeding network and how to go about averting them.

In order to understand the human impact on today?s remaining ?virgin? forest and to develop sensible management strategies for future reserves, it is necessary to know how these forests have developed. This knowledge can be gained by using forest history analysis. here are large areas of forests still untouched by modern forestry in the mountainous region in the county of Norrbotten. These forests are highly interesting study objects from an ecological and historical point of view.

This is a project about how you grow timothy seed and red clover seed successfully. The main part is about economic analyse to see if it is any economy by growing leyseed. There are lots of things to be aware of to get all the costs in your economic analyze. Timothy Timothy seed is planted on 4400 hectares in Sweden. It is possible to grow timothy seed in the south part of Sweden. Timothy is very sensitive for dry weather in spring and in the beginning to summer. Timothy gives acceptable harvest of seed for about three years. Red clover Red clover is also sensitive for dry weather and is suitable to grow in the south part of Sweden.

The municipality in Uppsala has set up goals for the future work concerning climate-and energy issues. As one way to achieve these goals the municipality started aproject called Uppsala climate protocol. During one of the project meetings anabatement map was presented. The map showed what savings in carbon dioxide andmarginal costs for different actions can be made. Statistics show that 40 % of thepopulation in Uppsala lives in a condominium.

The Swedish forest industry has put a lot of resources in the development of digital communications in hopes of improving collaboration with suppliers. The purpose of this study was to investigate whether VIDA would benefit from using digital communication with suppliers. The survey was conducted as a questionnaire study among the company?s staff and its suppliers. The result indicated needs and interests to use digital communications in both groups. Young suppliers and suppliers on a distance showed the most interest in using digital communication. In terms of using these digital communications, the staffs and suppliers were most interested in information regarding transaction and forestmanagement plans.

Chile and Santiago are struggling with heavy environmental problems as a consequence of urbanisation and industrialisation. In the Santiago region the air is seriously contaminated and most of the rivers are classified as heavily polluted.The aim of this thesis is to survey the industrial fluid waste situation in the Santiago region and to make suggestions on technological improvements or process changes. The purpose is also to study five different enterprises more closely and to give more detailed suggestions for improvement. Another purpose is to summarize relevant Chilean legislation.Information, provided by the supervisory authority, about the release of industrial wastewater to rivers has been analysed. Deep interviews have been made with authorities and consultants.

Green public procurement (GPP) can be used as an instrument to reduce carbon dioxide emissions, and consideration of environmental aspects within public procurement is becoming more common in Sweden and internationally. Two product groups that have been pointed out as especially important are transports and electricity, where the opportunities for public purchasers to reduce emissions are relatively large. This paper studies GPP which aims at reducing emissions, primarily of carbon dioxide, through environmental requirements within these two product groups. A theoretical analysis of cost-effectiveness, transaction costs and effects on technological development is performed, followed by a closer study of how these aspects appear in practice within GPP. The results indicate that a cost-effective allocation of reductions between the two product groups is most likely to be attained if the main part of emission reduction is achieved through environmental requirements on electricity. The cost for emission reduction within transports is relatively high, especially for heavy transports. For transportation services, more generally focused requirements on emission reductions could probably give greater environmental gains, but the existence of transaction costs steer the environmental requirements towards more technology specific types.

This Master Thesis discusses the development of bids for regulation power with consideration of change of discharge. The study was initiated by Vattenfall PD and is a limited part of a substantial development project at the same division. The background of the project is the new demands from SvK, which among other things includes more detailed regulation bids. As from the 1st of November 2008, the regulation bids are supposed to be calculated regarding each specific regulation object, something that is defined by SvK. These new demands changes Vattenfall?s conditions and will increase the need for detailed knowledge about available regulation power and costs for regulation.In this study a strategy for regulation bids was developed.

During the 1960´s and 1970´s the number of grey seals in the Baltic Sea was decreasing rapidly, mostly due to hunting and toxic substances like DDT and PCB. When hunting became less intense and toxic substances decreased in the environment the grey seal population started to increase. Today grey seals are found common in the Baltic Sea and have started to become a big treat and a problem to the fishing industry. The grey seal destroys and enters fishing traps and consumes large quantities of the fish that have been caught.The knowledge of the grey seal, like abundance and food preferences, is today limited. It is also important to define the position of the grey seal in the ecosystem in the Baltic Sea and to be able to predict changes that could occur if the population would rapidly decrease or increase.

This project aims to investigate whether algae can be used for biodiesel production in Italy. Algaes are a good option since they are fast growing and do not occupy arable land. The aspects that have been considered are growing, harvesting, which algae strain that is most suitable, extraction of oil, the production of biodiesel and where in Italy this could be possible due to climate. Cost? and energy calculations have been made to investigate if biodiesel produced from algae would be profitable. During the production of biodiesel there are several residues obtained. When the oil has been extracted from the algae, biogas is produced from the residual biomass by anaerobic digestion and then the electricity that can be produced is supplied to the production of biodiesel.

It is now increasingly common for organisations to work actively with HR issues. Furthermore, it is a constant top priority for organisations to remain profitable. The purpose of this study was to investigate whether so called soft HR values, as manager?s communication skills, has an actual impact on hard values in terms of costs for the organisation. Leadership is largely characterised by emotional communication, which together with personnel costs were the main focus of the research.

Syntesdesign AB is an academic company that is supposed to enter the HIV drugmarket by manufacturing a "me-too"-drug with indinavir as the starting substance.Our task is to find 100 potential indinaviranalogues. Our further task is to suggesthow to perform a bondingassay to test the affinity for all these analogues. We willpresent a method, required equipment and calculated costs for the assay..

Since the financial crisis of 2007, the global financial market has been characterized by instability. At the same time the banks? lending rates and its link to the reporänta have been in the spotlight in various debates in the media. The government with Anders Borg leading the charge has criticized the banks for not lowering their lending rates when the reporänta has been lowered. The banks defend themselves by saying that the reporänta does not have a direct link to their lending rates anymore.

Approximately 60 million cubic meters of round wood are transported every year with trucks in Sweden and stand for 15 % of all truck transportation in the country. The big amount that is transported results in many haulage companies works in different parts of the country with different conditions to get a good flow on their transports. Today the transport pricing is very general and the payment consists of the unit round wood they are transporting and the distance of the transport. The purpose of this study were, from the freighter and the haulage company?s perspective, try to find ways to change the today applied transport pricing to more differentiated and compare them to historic payment of transportation.

During the last decade, there has been an increase in the use of technology-based self-services within the retail sector. The increase is particularly noticeable within the grocery market. The reason behind the increased use of these systems is partially due to the fact that companies within highly competitive retail markets continually look for ways of decreasing costs while upholding efficiency. The problem is that it is difficult to understand the true economical implications of investments relating to these machines. The purpose of this study is to investigate and contribute with new insights regarding the cost-structures of the stationary self-checkout systems and traditional cashier desks, within the retail grocery market.