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). An improvement is only seen when the BER becomes much lower than what is common in real situations. In conclusion DDCE is complicated, involves many mathematical operations and gives insignificant improvement of SNR when BER takes common values. It is legitimate to question if it is possible to use the method in a real mobile phone system..

Syfte och frågeställningar: Denna studie har granskat begreppet mental tuffhet och dess roll i sporten baseboll. Syftet var att, genom en kvantitativ och kvalitativ metod, undersöka hur fyra unga svenska pitchers reflekterar över de egenskaper, färdigheter och verktyg associerade till mental tuffhet för att skapa en ökad förståelse i unga pitchers mentala förmåga. Detta genomförs som den första svenska idrottspsykologiska studien i sitt slag.Hur upplever unga basebollspelare olika aspekter av de innefattande egenskaper och färdigheter som omfattar mental tuffhet?Besitter unga basebollspelare som håller en jämn prestationsnivå under match även en högre grad av mental tuffhet?Metod: Studien består av en kvalitativ och kvantitativ metod där ett urval av fyra pitchers först statistiskt har observerats under match för att sen intervjuas med en semistrukturerad intervjumetod. Statistikinsamling genomfördes med syftet att kvantitativt granska deras prestation under match sett till lyckade och misslyckade kast.

Because of an increasing demand from customers and changing external environment, there is a need for continuous improvements, for both manufacturing and service organizations, to meet these demands. Manufacturing organizations have been working systematically with quality improvements for a long time, but it has not been as common for service organizations. Because of that the methods to use for implementation of the systematic improvements have not been designed to fit service organizations, and not either for public organizations. The purpose of this thesis is to explain if and why the Swedish Road Administration?s organizational culture and handling of ideas and deviation support an implementation of continuous improvement management.

Aim: The aim of this study was to investigate the quality of the social network in regard to young adults, with psychological disorders, and their possibilities to be open about their disease. In addition the study aimed at identifying possible causes to perceived difficulties by young adults to talk about their disease. Method: The survey was a quantitative study with descriptive design. The data was collected using a study-specific questionnaire on a clinic for young adults with psychological disorders, between 18 and 25 years of age. Out of 123 potential participants 79 (64 %) answered the questionnaire, of which two were excluded because they did not see themselves as suffering from mental illness. Results: The results showed that the participants of the study stated that they had a social network and the majority (90%, n=69) considered they had someone to talk to about their disease, but most of them wanted to be more open about their illness.However, the majority had some form of difficulty to talk about their disease with their social network. The most common specified causes were to feel ashamed of their disease and that the mentally ill persons did not think they would be properly understood.Almost the half of the participant experienced that they had some form of difficulty to be open about their mental disorder in front of health professionals and the most common specified causes was that the participant did not thought that they would be properly  understood  or that they did not felt confidence before the health professionals. Conclusion: Young adults with psychological disease have difficulty to be open about their disease, partly because of stigma.

The main purpose of this study was to examine if, and how, persons with psychological impairments have worse living conditions than the population average. The papers intention was to investigate and describe these conditions and to analyze them based on theories of stigma, and systems theory. This paper was composed on a qualitative study in which god men have been interviewed, in addition to accomplish the purpose. This study has highlighted the four individual areas of economy, employment, housing conditions and social relations. Results have shown that people with mental disabilities tend to live in worse living conditions than the population average.

Människor har en viss mental kapacitet. Beroende på situation och uppgift belastas denna kapacitet olika mycket. Huvudhypotesen i detta examensarbete lyder "en persons mentala belastning ökar om hon/han upplever att risken ökar", oberoende av de krav uppgiften ställer, dvs uppgiftens svårighetsgrad.Undersökningen utfördes som ett experimentet med inomgruppsdesign och 24 försöksdeltagare. Två oberoende variabler med vardera två nivåer användes: Konsekvens, normal/ökad och Information om svårighetsgrad, normal/ökad. Dessa var avsedda att manipulera riskuppfattning.

Flertalet nutida medier innehåller datorgenererad tredimensionell grafik. Intresset och efterfrågan för denna typ av grafik, har gett upphov till utvecklandet av åtskilliga datorprogram. Programmen innehåller oftast en eller flera integrerade renderingsmotorer. Studien jämför renderingsmotorerna Mental Ray och V-Ray genom att diskutera deras skillnader i renderingstider, användarvänlighet och renderingskvalitet, vid simulering av realistiskt ljus. Det praktiska arbetet utfördes genom att rendera samma 3D-miljö med de två olika renderingsmotorerna.

As a company it is required to work with strategies to minimize costs such as packaging and logistic costs. The increased market of industrial produced wooden buildings results that the time and the cost which the packaging of prefabricated building elements consume, is experienced to be in greater need of development than before and demands a better solution. The aim with this dissertation was to discover how the development of the handling of the packaging can improve the packaging process. The goal was to present improvement proposals for a simplified and thereby a more efficient production in time and cost perspective.The packaging process which includes packaging, handling, storage and transport were studied. Interviews were made with participants from the market for manufacturers of wooden houses and a case study was made at the company A-hus.

Abstract Title: A messy story ? a case study of Secorocs process flow of DTH-pipes Presentation date: 2010-06-02 Course: Bachelor thesis in businessAuthor: Kristoffer ForsmanAdvisor: Kjell GustafssonKeywords: Management control, process control, lean production, process flow analysisPurpose: The purpose of this bachelor thesis is to develop an overview of the process flow for a specific product, and with the help of this mapping based on a lean production philosophy show possible improvement proposals and how these can lead to a more efficient process flow.Methodology: I have used a case study of Secorocs DTH-pipes and my primary data are gathered through interviews and observations. I have used theoretical framework to establish a process flow analysis. This is to obtain data on process activities and whether they are creating value or not. This leads to a current mapping of the situation in Secoroc on DTH-pipes and then analyzed and suggestions for improvement are developed.Conclusions: That by using the above mentioned mapping of process flow of DTH-pipes, problem areas could be illustrated.

I den olfaktoriska litteraturen finns olika åsikter om huruvida människor kan bibehålla en mental representation av en doft. I denna studie undersöktes hur bra vi är på att föreställa oss dofter jämfört med bilder av personer, med hypotesen att denna förmåga är sämre för dofter än för bilder. Deltagarna försökte namnge 40 personer (bilder) och 40 lukter, där den ena gruppen endast exponerades för stimuli i 4 sekunder (singelsamplingsgruppen), den andra fick obegränsad tillgång under hela namngivningsförsöket (multisamplingsgruppen). Grundantagandet är att om deltagarna kan föreställa sig ett objekt för sitt inre så är de inte så beroende av återexponering. Resultatet visade inte på någon signifikant interaktion mellan grupp och modalitet, men nominellt går resultatet i hypotesens riktning.

This examination work is performed at the institution of industrial economy and production at Jonkoping technical university, for JELD-WEN Door Solutions plant in Forserum.Today the focus in the company is on to reduce their inventories binding of capitals as well as inventory of products and that includes to get a good control of the supply and handling of material which is of great importance.JELD-WEN Door Solutions is one of the worlds leading producers of windows and doors and the head-office is located in Oregon, USA.A great number of wooden doors are manufactured by the company in varying of constructions, classifications and performance.The production of the plant in Forserum has a project- and customer focus manufacturing where only internal doors are produced. The overall market they are concentrated on is to different institution such as schools, hospitals etc.The purpose of this work is to investigate possibilities to improvement of material- and production control at JELD-WEN. The report will handle the master production schedule to and from the production divisions within manufacturing industry. Focus will be on the way for information- and material flows from arrival, transport within the company and further on to customers.Further a map of the flow was performed which gave a clearer picture of the connection between the flow of information- and material for the manufacturing process. On the basis of the mapping of the flow, the group discovered that the flow of material had some improvement potential.

Syftet med föreliggande studie var att undersöka samband mellan de arbetsvillkor som berör gränslöst arbete och mental samt fysisk hälsa. Även att undersöka skillnader mellan olika anställningsförhållanden så som fastanställning och ej fastanställning och om de skiljer sig åt beroende på arbetsvillkor och hälsa. Deltagarna var 69 personer varav 42 stycken var kvinnor och 27 stycken var män. Resultaten visade att det fanns starka samband mellan de olika arbetsvillkoren och mental samt fysisk hälsa. Det visade sig även att det fanns ett flertal signifikanta skillnader mellan fastanställda och ej fastanställda.

This master thesis was performed at Scania Research & Development. The given mission was to see where the department Systems Development should focus to improve their development work. Thus the purpose was to map the product development processes in which the department works today and within them identify improvements. To fulfil the purpose a theoretical study of relevant terms, such as improvement work, product development and processes, initially was formed. The mapping method used is called "walk trough" and meant to let the people working in the processes be guides in their own process.

The improvement programme Six Sigma has often been surrounded by an air of success since it was introduced in the 1980s. Yet there are cases in which introduction of the Six Sigma improvement programme show far from successful results, even complete implementation failures with no traces of the Six Sigma methodology or any improvements after completion of the introduction. These failures can cause severe damage to organizations through direct monetary loss caused by a negative result of the investment. Indirectly the failure can cause confusion in the organization and loss of employee motivation. The conclusions have been derived based on a qualitative case study at a Swedish telecommunications company.

The aim of this study was to examine differences in the experience of intrinsic work-motivation and to examine changes depending on profession, where the purchasers experienced a higher level of individual demands and control than the production leaders. Another purpose was to see how the intrinsic motivation needs predicted mental well-being in the professions. The study was carried out using an internet survey that was distributed by e-mail, there were 98 participants. Two questionnaires were used; Basic Need at Work scale (W-BNS) measured intrinsic motivation and GHQ12 measured mental well-being. The result showed that the staff overall had high intrinsic motivation with highest scores on relatedness followed by competence and lastly autonomy.