Denna rapport ingår som den avslutande delen av ett examensarbete på civilingenjörsprogrammet inom maskinteknik, vid Luleå tekniska universitet. Examensarbetet har utförts på uppdrag av Norma Precision AB och behandlar ett problem som internt benämns Soft brass. Soft brass är ett materialtillstånd som innebär att materialets sträckgräns är för låg. Detta medför att tändhatten lossnar vid avfyrning. Uppgiften bestod i att ge förslag på materialval och bearbetningsförfarande för patronhylsor, så att tillräcklig sträckgräns på färdiga hylsor kan uppnås.

Pekska?rmar anva?nds i allt sto?rre utstra?ckning som interaktionsteknik fo?r hemelektronik. Tekniken har traditionellt sett inte anva?nts i kra?vande miljo?er, exempelvis i miljo?er da?r skakningar och g-laster fo?rekommer. Introduktionen av pekska?rmsteknologi i cockpitmiljo? fa?r konsekvenser fo?r utformningen av fo?rarmiljo?n vilka bo?r utredas.Denna studie syftade till att empiriskt utva?rdera anva?ndarnas prestation med avseende pa? precision vid olika interaktionsmano?vrar pa? en pekska?rm.

Shopping for groceries often means that, as consumers, we travel to the grocery store ourselves, by ear, bike or on foot. At the store we pick out the groceries that we want, go the register and pay for them. During the last couple of years consumers in Sweden have been given the opportunity to let someone else select and transport the groceries to their home instead, so called home shopping. As this report is being written, the possibility to buy groceries this way is somewhat limited, but many forecasters believe that in the near future it will increase immensely. Because of the large volumes of groceries that are being transported, there is great transport work being done in the supply chain.

The purpose of this essay is to perform an evaluation regarding retrieval performance of three web search engines. The search engines included are All the Web, Alta Vista and Google. These have been tested using ten queries within different subject areas chosen by the author. The first twenty hits for each question have been analyzed for relevancy. Relevancy is judged on a three-point scale; 0, 0,5 and 1 where 0 goes to irrelevant and inactive or duplicate documents, 0,5 point goes to partially relevant documents and 1 point goes to highly relevant documents.

Vattenfall hedge its future electricity production in order to decrease fluctuations in theresult. Hedging can in a simplified way be described as selling the future electricity deliveriesin long-term contracts so that the future price of the delivery becomes fixed. The contractsused are electricity forwards traded at the Nordic electricity market Nord Pool. Animbalance between buyers and sellers can lead to a situation where the forward price notequals the expected spot price. The difference between the forward price and the expectedspot price is referred to as the market risk premium.

Purpose ? The purpose of this thesis is to develop a total cost model for container transports and create a tool that calculates a suitable transport quantity from an economic view, which fulfills the demands on delivery service. To achieve this purpose the following questions will be answered:Which costs are affected by the decision between the two transport alternatives LCL and FCL?   How does the decision of sending product LCL or FCL influence the delivery service?  How can a tool be constructed to simplify the decision-making process regarding the choice of sending products LCL or FCL?  Method ? A total cost model was developed. This model is supported from existing literature.

Background: The incidence of caesarean section for breech presentation has reached approximately 90 % in Sweden. In many of these cases, by means of specific selection criteria, it would be as safe to plan for vaginal breech delivery. Aim: The objective of this study was to investigate differences in management and to compare maternal and fetal outcomes according to delivery mode of breech presentation; vaginal vs. caesarian section. The study included breech presentation in full term singleton pregnancies at the UppsalaUniversityHospital, Uppsala, Sweden (UAS). Method: The study was based on medical record data with a retrospective, descriptive, comparative design with quantitative approach. The method for data collection was a manual review of patient records using a structured questionnaire. Results: Of the women with children in breech presentation during the period studied, 11 % gave birth vaginally.

The society of today can?t manage without transportation. We need transports to getfood, to go to work and to create new products. The transportation ofgood is thus an important part in the function of the society and they?ll increase, bothin number and in amount.

The purpose of this research is to study the new curriculum in the topic of modern languages in the upper secondary school, and compare the curriculum from year 2011 with the one from year 2000 and thus try to find differences in the content and wordng. The research also aims to investigate teachers' interpretations and understanding of the new curriculum. The study is divided into two sub?studies and those are based on the two methods of text analysis and interview. Text analysis of policy documents is made parallell with some aspects found in the background materials of the upper secondaryschool reform, which can be summarized as precision and globalization.

Purpose ? The purpose of this thesis is to develop a total cost model for container transports and create a tool that calculates a suitable transport quantity from an economic view, which fulfills the demands on delivery service. To achieve this purpose the following questions will be answered:Which costs are affected by the decision between the two transport alternatives LCL and FCL?   How does the decision of sending product LCL or FCL influence the delivery service?  How can a tool be constructed to simplify the decision-making process regarding the choice of sending products LCL or FCL?  Method ? A total cost model was developed. This model is supported from existing literature.

In this project I have created a design for the delivery rooms of Swedish hospitals with the psychological aspects ofbirthgiving in focus. This is something that I think the delivery rooms lack and so far it has been the midwifes job to,without any tools, give the women in labor the mental support and encouragement they need.My goal was to give the midwifes a tool to work with when it comes to encouragement, something helping themhelping the woman to feel safe and relaxed, strengthened, informed and in control of the situation.I choose to focus on the difficulties measuring the physical work the woman in labour had done and what was leftof the labour. I wanted to visualize the process of the birth, allowing the woman to see and being able to focus onwhere during the labour she is, how far she has left and also being strengthened by the amount of work already managed.Further I wanted to make the woman feel invited to take control over the birth and the room in which she isin labour. I wanted her to be able ? if she wanted ? to make her own settings of the mood in the room, deciding forherself if she wanted a more relaxed environment or perhaps a more energetic.

Bakgrund: Ett flertal studier tycks visa på att kolhydratdryck under träning fördröjer tröttheten och många forskare hävdar att en kolhydrat- dryck kan öka prestationsförmågan. Det finns däremot få studier som har utvärderat om kolhydratdryck påverkar precisionen, endast Burke och Ekbloms studie från 1984 på tennisspelare har berört denna aspekt. Syftet med studien var att utvärdera huruvida dryck med kolhydrater påverkar en basketspelares precision jämfört med en dryck utan kolhydrater. Metod: En ABA?randomiserad, kontrollerad studie med cross over-design under två helt vanliga träningstillfällen utfördes.

Syftet med föreliggande studie var att undersöka hur bra vi är på att bedöma ålder på omaskerade och maskerade ansikten. Syftet var även att undersöka om det fanns systematiska fel som är förknippade med åldersbedömning av maskerade ansikten.Totalt fick 60 försöksdeltagare, samtliga ungdomar, skatta åldern på 60 fotografier av 30 maskerade och 30 omaskerade män.  Fotografierna var indelade i två åldersgrupper, yngre och äldre, och samtliga stimulipersoner förekom i både den maskerade och den omaskerade varianten.Resultaten visade att försöksdeltagarna var bättre på att skatta åldern på omaskerade ansikten än på maskerade. Inga skillnader i systematiska fel fans mellan maskerade och omaskerade ansikten.Bilder av unga ansikten skattades med högre precision än bilder av äldre ansikten..

The question whether controlled vocabulary or natural language free-text terms is the most effective search strategy has occupied researchers in LIS for many decades. This Masters thesis is an empirical study which aims to compare these two search strategies in LISA Library and Information Science Abstracts, an online bibliographic database. 22 topics from the discipline of Library and Information Science were constructed and out of each topic one query for each search strategy was formed. Queries in natural language were formed with terms from different sources, for example dictionaries, while queries in controlled vocabulary were built with terms from LISAs electronic thesaurus. The measures used in this study were precision, relative recall pooling method and overlap.

Denna studie behandlar bolags informationssignaler före, i samband med och efter förvärv. Med utgångspunkt i agent- och signalteorin har informationssignaler som skickats identifierats, där en kvalitativ ansats med tillhörande diskurs- och etnografisk innehållsanalys har använts för att kartlägga informationssignalerande mekanismer samt generera en modell för analys av informationssignaler i samband med förvärv. Studien uppvisar resultat om varför informationssignaler sänds i samband med förvärv, där bolag generellt eftersträvar att minska informationsasymmetri gentemot sina intressenter, legitimera beslut samt nyttja informationsövertag för att skapa personliga fördelar. Studien bidrar till området för informationssignalering, där utfall av förvärv påverkar omfattningen och innehållet som informationssignaler uppvisar..