During the migration season in 2013 a study on spawning migrating salmon and the effect of water flow on the behavior was conducted of the salmon at the Forshaga hydropower station in the River Klarälven. The River Klarälven with its nine hydropower plants on the Swedish side, constituting migration obstacles for the migrating salmon. Fortum Generation AB has together with the County Administrative Board restored a salmon trap at the lowermost hydropower station in Forshaga, aiming at making it possible for the salmon to swim into the trap, and thereafter be transported by truck past the power plants and then continue their journey to the spawning grounds on their own. Unfortunately, it is believed that the trap does not work as well as it should. In this study, I focused on salmon position in relation to water flow and if the number of salmon that swam into the fish trap differed between salmon with previous experience of the trap (experienced) and salmon without experience (unexperienced).

This report describes the development of a high-voltage connector at the request of Scandinova Systems AB in Uppsala. The development process is described from the making of a customer demand specification, to the making of drawings for the manufacturing of prototypes. Scandinova develops high-voltage modulators, hence the need for connectors that can handle very large power pulses. Their current connector has several weaknesses that may cause the connector to melt or catch fire. The development began with a number of studies that included the modulator structure and the current connector structure and functions.

Yesterdays common fertilizing strategy was to apply phosphor (P) and potassium (K) in thefall a few times in the crop rotation. In the spring only nitrogen (N) was applied. Recent trialsand studies has shown that this strategy, N+P/PK, is ineffective compared with the systemwhere NPK is spread every year in the spring. The strategy with annual NPK-fertilizer in thespring has proven to be better for the crop, the environment and the farmers economy.In the NPK-system the crop responds with higher yields and better quality, especially in thespring cereals. This is mainly because of an interaction between the different nutrients in thefertilizer.

Ocean Thermal Energy Conversion, OTEC, is a sustainable energy conversion technology that is not yet commercialized. OTEC is a technology that utilizes the temperature difference in oceans between the warm surface water and the cold water at 1 000 m depth to run a Rankine Cycle. This technology can produce electricity and provide synergies like fresh water, air conditioning and aquaculture. A simulation program for three alternative OTEC systems has been created in order to decide which OTEC system is most profitable; closed, open or hybrid system. In this simulation a production cost analysis is performed in order to investigate and decide which one of the three systems that has the lowest production cost. The production cost analysis also analyzes if the profitability is affected by the size of the facility. After these analyzes, the most profitable of the three different OTEC-systems is expanded by an installation of solar collectors in order to see if the thermal efficiency is improved. The result shows that the most profitable system varies with the size of the facility.

The purpose of this study is to examine what factors that motivate people to work in professions with an explicit and inherent risk of threats and violence. By using a qualitative study and conducting in-depth interviews with eight security guards and doormen with experience from working at restaurants and nightclubs, the study could conclude that the interviewed security guards and doormen were motivated mainly by economic incentives and the social interaction that the profession entails. Status and riskiness of the profession did also, to a certain extent, contribute to the motivation. The professions' lack of advancement opportunities were frequently mentioned as the main reason to why one chose to leave the position, or consider the time in the profession as limited..

Residential estates are created without any adaptation to the users who will use them. Clients wouldprofit on involving users in an early project stage to create housing estates adapted to the user?s needsand wishes. Clients of the housing estates that require missions from consultants should realize that noone exclusive can represent other people's needs, regardless of the theoretical expertise they possess. TheSwedish million programme in the 1970s is an example of how objective expertise gained control, whichled to the creation of outdoor environments where few wanted to stay and live.

Biogas is increasingly used for fuel in for example vehicles and it´s produced in a biogas processconsisting of the steps of pretreatment, digestion and gas cleaning. The pretreatment is a method usedto increase the gas production and / or destroy pathogens. The digestion is the stage when anaerobicmicroorganisms convert bio-mass of a substrate to a raw gas containing about 65% of methane. Thegas cleaning is used to increase the methane content to about 97% so the gas can be used for motors invehicles. The biogas part of the Ekeby sewage plant in Eskilstuna is using multiple substrates.

The text deals with the process of reorganizing and cataloging the archival material emerging from State secondary grammar school in Falun, which appears to have been poorly managed for a number of years. The work was done with consideration to former ways of organizing the material, and a great deal of research was needed in order to establish the outer provenance of the archive.The theoretical discussion goes deeper into the questions of provenance and appraisal in regard to the work,and some choices, especially the decision to reorganize the archive, are motivated with reference to Swedishrules and regulations concerning state authorities' archival management and their duties towards Swedish citizens..

New technological innovations like tablets and smartphones have a taken significant market share on the web and puts new demands on webpages, the user interface and compatibility among different client devices. The full test of a web-based system prior to the publication is often regarded as an important part of the process to create a complete and successful website. This bachelor thesis investigates the possibility to analyze mobile-adapted web sites using a system that first records the visitor's activities and then replays them for an expert analyst to provide valuable information to developers about how their site can be improved.The essay begins with a litterature study on today's most common web development tools and then examines the possibility to apply them during the development of the analysis tool. The work also describes two methods, pair programming and waterfall method used during the project. Three different evaluation methods are presented and one of the models is applied on the finished system.The project results in a web-based analysis tool written mainly in JavaScript using the jQuery library.

This essay describes how Örebro läns landsting operate concerning the delegation of work environment tasks in their organization. In the essay we review present law, with the focus on the delegation of work environment tasks. The purpose is to see if Örebro läns landsting are following the law in a correct way.Through interviews with people responsible for the work environment, and representatives for the workers in these questions, we could see how Örebro läns landsting were fulfilling there obligations in the role of employer. The result described how they were motivated and how they systematically worked with work environment issues. However, we could also see that the structure of the division of work environment tasks were inadequate.

There have been significant changes in the agricultural sector during the past 20 years (Jordbruksverket, 2008). The development of today is towards deregulation and adaption to global market conditions. As farmers try to adapt to the changed and more competitive market conditions investments are often necessary (LRF Konsult et al, 2012). Loans to agriculture and forestry businesses have increased to record levels and debt has doubled over the past years. The financial turbulence of the past years has contributed to an increase of the meaningfulness and willingness of the banks to be able to understand and handle risks associated with agriculture and forestry (Breiding, 2010).

More efficient energy consumption is essential to secure a sustainable future, not least within the building and real estate sector which answers for approximately 40 % of the EU countries total energy consumption. One part of EU: s work to reduce the energy consumption is the directive on energy performance of buildings which among other things have lead to stricter demands on energy performance in new and renovated buildings.One of the difficulties with making buildings more energy effective is that it often demands big investments and although it results in lower operating costs the extent of these savings and therefore also the repayment time can be difficult to decide beforehand. To make it interesting for property owners and also tenants to invest in energy efficient buildings powerful incentives are needed. Favorable loans to energy efficiency projects are one example of governmental instruments that have been tested in other European countries with good results.Reduced operating costs appear to be the main incentive for property owners to make their buildings more energy efficient. The best result of an energy efficiency project is usually achieved by cooperation between property owners and tenants but in order to make that interesting it is important that both parts can profit from the savings.

Compressed air is an energy source that is widely used in today's trucks and buses.Compressor located next to the engine supplies the pneumatic system with the compressed air and is lubricated with the engine oil. Some of the oil follows the air flow in both liquid and solid phase. The solid phase, namely the carbon particles are created due to the high temperature in the compression chamber.Oil- and particles carryover softens and destroys the rubber material in the air valves and disturbs the mechanical function of various components in the pneumatic system. In order to reduce oil- and particles carryover is an Air Processing System (APS) set downstream the compressor.No method for establishment of oil- and particles carryover from the compressor exists at the moment. Therefore the filtration efficiency of APS is currently unknown.

In this report a new gear concept is evaluated using the magnetic finite element method (FEM)software MagNet and Ansys as well as the mechanical FEM software Abaqus. The gear conceptis evaluated in terms of maximum torque capability, torsional stiffness, gear ratio and efficiency.ABB Corporate Research has proposed a new gear concept which should be less expensive thangearboxes used today. The new concept is called aMagnetic Harmonic Traction Drive and usesthe principles of a harmonic drive gear to achieve a high reduction ratio. The gear conceptreplaces the wave generator used in traditional harmonic drives with magnets and uses tractioninstead of gear teeth to transfer the torque. The main components in the gearbox are the magnets,the flexspline, the magnetic portion and the circular spline.

This study intends to discuss what might motivate Swedish upper secondary students to read literature in English. The study was performed through interviews with both teachers and students, as well as questionnaire studies with both students and teachers. The students give different interpretations of what the definition of motivation is, ranging from definitions of extrinsic motivation to signs of their definitions leaning toward intrinsic motivation. The conclusion is that although the English language itself is not a barrier for students? reading motivation, the majority of them are not motivated to read.