Föreliggande rapport är resultatet av ett examensarbete vid Luleå tekniska universitet och Chalmers Tekniska Högskola utfört på uppdrag av Scania CV AB, Chassimontering av lastbilar i Södertälje. För att säkra långsiktig produktion i Sverige måste Scania ständigt arbeta med att effektivisera tillverkningsprocesserna och öka produktiviteten. Samtidigt ökar efterfrågan på lastbilar. Genom att hantera en högre produktionstakt utan ökad bemanning i produktionen stiger produktiviteten. Ett medel för att uppnå detta har varit att balansera flödet.

Svenska Högarna är en ö samling som ligger 70 km öster om Stockholm och tack vare dess centrala läge i Östersjön skulle en station kunna vara av strategiskt intresse för de stora fältstationer som redan finns i fastlandet.En inventering av den kustnära undervattensmiljön har tidigare skett där och enligt en rapport skulle ytterligare inventeringar behövas.Den är tillgänglig för forskning båda från hav och land. Det vill säga att forskarna ska kunna ta sig ute på havet med små motorbåtar direkt från stationen. En hanläggning som består av en pyr, bryggor och en inlastnings yta samt båtgarage är länkad till stationen.Byggnadens typologi och infrastruktur anpassas till öns kuperade topografi samt förhåller sig till det befintliga programmet på ön som består bland annat av tillsynsmans bostad, fyren och övriga lokaler i inre hamnen.Den ska hålla i tiden mot de hårda förhållanden som ön utsätts för under de olika årstiderna..

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

Axelopererade personer har svårt att röra sig under några veckor efter operationen. Den som bor i glesbygden och blir opererad i axeln eller armen måste regelbundet åka långa sträckor för att besöka sjukvården och bli undersökt. Frågan är om det går att minska dessa bilturer och samtidigt behålla vårdkvaliteten? Man har kunnat reducera patienternas resande till och från sjukvården med hjälp av en enkel videokonferensanläggning som patienten får låna hem. Med denna utrustning kan patienten upprätta videomöten med vårdpersonalen istället för att åka till sjukvården.

The Multispectral Canopy Reflectance Model (MCRM) by Kuusk (1995) has beenused to simulate the reflectance of a sugarbeet canopy. The simulated reflectancevalues show high absorptance in the VIS area, compared to field measurements, andhigh reflectance values in the NIR area. The errors may be due to overestimation ofclorophyll content in the sugarbeet leaves and scattered light during fieldmeasurements. The estimation of the clorophyll content where carried out using thePROSPECT-model by Jacquemoud & Baret (1990).During the vegetation period, the state of the canopy moves towards a closed canopy,with sparse vegetation in spring. The MCRM-model was used to perform a ?spring?simulation, which was compared to the original simulation.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

The main aim of this master thesis was to see the process of an interactive online reference service from idea to final product. The reference service we have studied is developed and used by the Library of the National Institute for Working Life in Stockholm, Sweden and goes by the name phibi. Our goal was to review the whole realization process from the reasons why a service like this was created, how the service was introduced and implemented inside the organisation and finally what the result and consequences were for both the library staff and for the users of the service. Phibi is designed to be a tool that fosters communication between the library staff and the remote users where the users get the opportunity to be helped with their questions by the library staff although they are not physically present in the library. To understand the process we conducted a case study with 11 interviews of the library staff, the superior and the initiator to phibi.

Syftet med detta examensarbete var att undersöka vilka faktorer som påverkat acceptansen hos användare, inom den kommunala verksamheten, vid införande av ett datoriserat system. Med acceptans menas att användarna ska kunna utföra sina arbetsuppgifter på ett bra och lätt sätt. Studien har gjorts utifrån användarnas perspektiv.Genom att genomföra en intervjuundersökning på ett flertal kommuner där användarna använder systemet Vabas/Duf, har undersökts hur användarnas upplevda acceptans påverkas av faktorerna delaktighet, användbarhet och lättanvändhet, vid införande av ett datoriserat system. Delaktigheten vid införandet av ett system innefattar även information och utbildning.Resultatet från undersökningen visade att delaktigheten ökade användarnas acceptans. Ingen avgörande slutsats kunde däremot dras mellan acceptans och faktorerna användbarhet och lättanvändhet, då resultatet från de båda grupperna inte visade någon märkbar skillnad..

Our report procedure identification of instability and disturbance in an automatic manufacturing line of processing and assembling of chair sliding rails at Sapas manufacturing department in Vetlanda.To obtain a stabile ground we have mapped the material flow to receive a comprehensive view and to visualise connections.We have examined cycle times at different stations in purpose to identificate bottlenecks. The result of our examination showed that the bottleneck of the line was the brush station. This leads to that the expected bottlenecks identificated by Sapa gets a delay time and by that a longer cycle time.Interruptions has a clear negative influence at the line performance so we have also assemble data through the operators report list and compiled these in order to find out the interruptions effect on the line. The outcome during our assembled period was that the reported interruptions corresponded about 30 percent of the total available production time. This has a clear negative effect on the line productivity and efficiency as we have calculated in order to get the present status..

The main aim of this master thesis was to see the process of an interactive online reference service from idea to final product. The reference service we have studied is developed and used by the Library of the National Institute for Working Life in Stockholm, Sweden and goes by the name phibi. Our goal was to review the whole realization process from the reasons why a service like this was created, how the service was introduced and implemented inside the organisation and finally what the result and consequences were for both the library staff and for the users of the service. Phibi is designed to be a tool that fosters communication between the library staff and the remote users where the users get the opportunity to be helped with their questions by the library staff although they are not physically present in the library. To understand the process we conducted a case study with 11 interviews of the library staff, the superior and the initiator to phibi.

The Arctic region appears as a pristine remote environment, yet there is increasing evidence that it is greatly impacted by pollution such as lead (Pb) and mercury (Hg). In this environment deposition of Hg has increased threefold since the last industrial revolution. In this study five cryosolic soil profiles within non-sorted circles (NSC) in the Abisko region, northwest of Sweden, has been analyzed to improve our understanding regarding how pollutants are distributed within such type of soil. The soil samples have been analyzed with the use of X-ray fluorescence analysis (XRF), for the measurements of the total concentrations of e.g. lead (Pb) and zirconium (Zr).

Under de senaste åren har e-underhåll väckt ökat intresse. Det är en underhållshantering där exempelvis ett fordon hanteras och övervakas över internet. Inom detta område finns det olika tekniker. En sådan teknik som vuxit fram under de senaste åren är ?remote diagnostic system? eller fjärrdiagnostiska system.

The depth-to-water-index (DTW-index) is derived from digital elevation models (DEM) to map soil wetness, in terms of distance from soil surface to the ground water table. The aim of this GIS based study was to investigate the existence of a relationship between DTW-index and forest site productivity (SP). The belief of such an assumed relationship was based on knowledge that the ground water level is related to site properties that can either promote or impede tree growth. Data primarily comprised rasters of the Krycklan catchment in northern Sweden and depicted DTW-index and a laser scanned vegetation height. The 100th height percentile of each pixel in the vegetation raster was assumed to mirror the top-height, letting it act as a relative measure of SP within a delineated area of equal stand age.

In order to reduce the number of casualties and injured from accidents the rescue service must become more efficient and flexible. It is noted that far more people is injured and killed in traffic accidents than from fires. During the daytime the number of accidents in about three times higher than during the night, even so today the number of fire fighters on duty is the same day and night.Two computer models for simulation of different locations of the rescue services are used to determine the best options for placement of the rescue services. A cost-benefit analysis is also used to determine if today's fire stations are efficient for the society from an economical point of view.The results of the different models are that the fire station in Lund is misplaced. The number of ladders in Malmö can be reduced.

Machine-to-machine (M2M) communication is a phase in the digital revolution connecting computing devices with each other bringing along new business opportunities for companies. Although being a fast growing field it has not been researched to any greater extent, particularly not within the academical literature. Consequently, information on how M2M can affect organisations seems strongly needed. This thesis uses three perspectives, derived from already recognised business benefits of M2M, as an aid to select proper theoretical tools to investigate the phenomenon. The purpose of this thesis is to gain knowledge of how an M2M adoption affects a firm?s organisation, customer offerings and customer relations.