Many watersheds have lost stocks of migrating fish species because of the development of hydroelectric plants and other fragmenting barriers. The remaining stocks of migrating Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in River Klarälven, Sweden are five times smaller compared to one hundred years ago. A fish-trap at the hydroelectric plant in Forshaga has been vital for the continued existence of the stocks. This is the first hydroelectric plant of eight, blocking the way to the spawning grounds. Spawners are collected in the trap for both hatchery and transport by Truck upstream and past seven more hydroelectric plants to the spawning grounds, where they are released for possible natural reproduction.

Previous studies of central tire inflation (CTI) in Truck transport of roundwood have shown potential benefits to include more even wood flow and reduced road damage. The greatest benefits are found to be during periods of low bearing capacity such as spring thaw. No previous studies have examined geographical variations in the potential benefit of CTI-equipped Trucks. The aim of the study was to develop and use a simple method for geographically prioritizing the use of CTI-equipped Trucks within a forest company´s sector of activity.The host company for the study was Holmen Skog. The area studied consisted of Holmen Skog?s entire sector of activity extending from the province of Västerbotten to the province of Småland.

Saab Aerosystems has a long tradition and a lot of competence in the field of flight simulation. Their ambition to broaden the market horizon has led to a discussion about also selling vehicle simulation solutions, both for military and civilian use.The aim of this thesis is to investigate the driver?s experiences of the accelerations he or she is exposed to whilst driving in rough terrain. The results may be used as a basis for future decisions and can act as a platform for the construction of an effective simulation model.To investigate the driver?s exposure of acceleration, some kind of dynamic simulation is needed.

Scania InfoMate develops web applications that support Truck distributors and workshops with the necessary tools for an effective maintenance process. However, the end-users of these applications are faced with as many different graphical interfaces as there are applications. As a consequence, important effects of recognition are lost, developers spend unnecessary time designing new solutions for each application and Scania InfoMate does not present a homogeneous brand image towards its customers.Therefore the aim of this study is to give a suggestion of how a standardized graphical interface for web applications at Scania InfoMate should be designed. The given suggestion should come from thorough investigation of both end-user needs and recent research within the area of usability. In addition to a standardized interface this study also aims to deliver guidelines that support future web application development at Scania InfoMate.Through a combination of methods, mainly heuristic evaluation and user interviews, an elaborate description of usability and consistency problems in a defined web application portfolio is produced.

This report describes a project carried out in cooperation with Klippan Safety AB. The purpose of this project has been to develop a product that facilitates the living area in a Truck cabin for the customers. To be able to develop, in a structured way, that kind of product, the project has been based on different product development theories. The project contained of following parts: marketing research, product generation, product evaluation and prototyping. After information from the marketing research and discussions with the company, the decision was made that the task was going to consist an improvement of the existing product referred to as 'the comfort module'.

Hur olika människor lär sig nya kunskaper är högst individuellt, vissa kanske vill lyssna på musik medan vissa behöver absolut tystnad. Det som dock är gemensamt för alla är att det som behövs för att främja lärande är en stressfri miljö där eleven känner sig säker. En lagermiljö är ofta väldigt stressig och påfrestande och är inte en optimal plats för utbildning. En anställd på ICAs lager i Hacksta Västerås skall på en väldigt begränsad tid lära sig att köra Truck, packa varor samt hantera ett komplicerat system. Upplärning i denna stressade miljö leder till osäkerhet och större risk för att göra fel.

This Master Thesis is a product development project that has been carried out in cooperation with Scania CV AB. The purpose has been to find the relationship between geometric parameters and the swirl number for an XPI- cylinder head in order to improve the design specification.The increased focus on environmental issues from society leads to tighter emission legislations for the Truck manufactures. In order to drive the development forward considerable resources are spent on research and development on diesel engines and its combustion process. The inlet air has a significant impact on the formation of emissions and the flow that is desired is called swirl. Swirl is achieved by making the air rotate around the vertical axis of the cylinder.Earlier cylinder heads that has been developed at Scania CV AB have shown clear relationships between geometric parameters of the cylinder head and the swirl number.

Med ett växande fokus på ett långsiktigt hållbart samhälle som tar ansvar för miljön strävar fordonstillverkare efter att sänka energiförbrukningen på sina fordon. Detta arbete behandlar hur man kan sänka bränsleförbrukningen för lastbilar med påbyggnader. En påbyggnad kan t.ex. vara en kran, en lastväxlare eller en betongpump. En metod för att sänka energiförbrukningen är att sänka det varvtal som lastbilens dieselmotor arbetar vid.

Several technical solutions are ready to step forward as the new generation of propellant, and this report aims to explore the possibility of commercializing fuel cell cars. The report is based on current research and data from today's technology and engineering solutions that are estimated to be commercially realized before 2020.A mapping of today?s different fuel cell options has shown that the most suitable fuel cell option is the Proton Exchange Membrane Fuel Cell, which uses hydrogen as fuel. The report is focusing on a techno-economic well-to-wheel analysis of hydrogen and the energy balance and costs in a system perspective. The basis for this analysis consists of two centralized methods of production, steam methane reforming (SMR), and alkaline water electrolysis.

Long transport of products is an environmental issue discussed to an increasing extent. The consumers are increasingly aware of how far our comestibles really have been transported. The increasing levels of environmental emissions are something that concerns people. The question is nevertheless delicate and many choose to ignore it. This is no longer an option.

This study will identify the environmental impact in terms of carbon dioxide for a boiler house on behalf of Kvänum energi. The boiler central consists of a main building, which in turn contains multiple components such as boilers, pipes, etc, the boiler central uses pellets fuel. It also includes a silo and an ash container. The total weight of the boiler is about 63 tons. Each boiler has an output of 600 kW; the central includes three boilers with room for a fourth if necessary.

Detta examensarbete har utförts med Elof AB som uppdragsgivare. Elof AB är ett företag som tillverkar lyftanordningar för att lyfta tunga gods inomhus. Dessa tillverkas i mycket små serier och är ofta kundanpassande med olika tillval. Uppdraget bestod av att omkonstruera den befintliga drivenheten D300. Huvudmålet var att förändra dagens förarplats genom att förbättra sikten, ergonomin, göra den mera lättillgänglig samt analysera problem som kan finnas med dagens förarplats och åtgärda dessa.För att få en djupare inblick och förståelse i problemet genomfördes ett antal olika analyser vilka mynnade ut i en kravspecifikation som Elof godkände.

Genom att undersöka vad som motiverar projektledare och vilken syn de har på sin framtida karriär, syftar studien till att bidra med kunskap som kan hjälpa HR-funktioners arbete med att utveckla strategier för att behålla denna värdefulla kompetens.Studien genomfördes med en deduktiv forskningsansats och kvalitativ strategi med semistrukturerade intervjuer som datainsamlingsverktyg. Totalt genomfördes tio intervjuer med projektledare och ytterligare fyra med informanter.För att analysera det empiriska materialet användes litteratur kring projektledarrollen, karriärsutveckling, motivation och Human Resource Management.Studiens resultat visade att projektledare har olika uppfattningar kring karriär. Dock ansåg de flesta att karriär innebär utveckling med fokus på lärande och att de själva bär ansvar för sin karriärutveckling med stöd från ansvarig chef. Projektledares syn på framtida karriärmål skiftade mellan att vilja fortsätta inom projektledning till att vilja byta inriktning till linjechefsyrket. De projektledare som ville fortsätta inom projektledning ville antingen bygga en karriär genom utmanande och intressanta projekt eller avancera genom att driva större komplexa projekt.

The flow of information in road vehicles intensifies as new techniques develop. Informationsources such as cell phones, navigation equipment and radios demand the driver?s attentionwhile he or she must stay focused on the road to perform a safe driving. Today the visualinformation inside the vehicle is mostly located on the dashboard, which forces the driver tolook down when shifting attention between the environment outside and the informationinside the vehicle. One way to avoid this is to useHead-up Display (HUD), a technique thatprojects information in the visual field of the user.This master thesis has been performed in cooperation with Scania CV AB, a world leadingTruck producer.

The purpose of the work is to analyze and balance an assembly line at Fläkt Woods in Jönköping. The work is going to answer the questions about today?s throughput time, how much waste that occurs, number of staff at the assembly line, how the supply of material works and possible improvements that can be made at the work stations. The work is also going to give a proposal of improve-ments that can be made.The methods used to get the result include observations and measurements, con-versations with technicians and operators and also data from Fläkt Woods? data-base.Large variations in throughput time are measured during the measure period, from 3 hours up to 5 hours and 35 minutes.