In this study, the pre-tension force in an insert screw connection are examined in order to establish a greater understanding of the system and to facilitate the process of making new metal cutting tools. Certain especially significant design variables such as the offset, the length of the contact thread and the shank length above the threaded hole, are selected to be closely examined. A comparison of the influence on the pre-tension force between threaded holes made with a worn, versus new, threading tool is also involved in the experiment. The study is limited to handling the screw sizes M2,5 and M3,5. The results show that a regression model, with good approximation, can be fitted to the measured values.

I denna studie har författaren undersökt hur ett medelstort företag gick tillväga vid framtagan-det av ett produktionssystem och jämfört processen med de teorier och riktlinjer som finns för användarcentrerad systemdesign.Studien har genomförts baserat på litteraturstudier och semistrukturerade intervjuer.Intervjuobjekten har utsetts tillsammans med handledaren, tillika linjechef för utvecklings-gruppen, på företaget för att redovisa olika perspektiv på utvecklingsarbetet.I resultatavsnittet presenteras utvecklingsprocessen med en modell av flödet tillsammans med en beskrivande text. Genom interna instruktioner för utveckling av datoriserade system anslu-ter företaget bl.a. till olika teorier inom användarcentrerad systemdesign. I det studerade ut-vecklingsprojektet var olika användare inledningsvis med informellt och allteftersom systemet växte så fick de vara med och göra acceptanstester och utvärderingar innan nya uppdateringar skulle släppas.Slutsatsen av studien är att flera inslag av användarcentrerad systemdesign applicerats i ut-vecklingsarbetet i företaget vilket sammantaget gör att användarnas synpunkter tagits tillvara. Dock följer företaget inte någon speciell metod inom området vilket sannolikt skulle förbättra utvecklingsprocessen i framtida projekt..

The tick-borne disease bovine anaplasmosis is primarily caused by Anaplasma marginale. A variety of wild animals act as reservoirs for A. marginale, but the understanding of their role in the epidemiology of A. marginale is yet poor. This cross-sectional study was conducted to establish if proximity of wildlife affect the prevalence of bovine anaplasmosis in cattle.

This is a dissertation for a Bachelor Degree Project at the University of Skövde. The project is carried out in cooperation with the company Kinnarps AB.The objective of this project was to develop a new chair for café and lunch rooms, which should satisfy the markets expectations and demands and match Kinnarps AB?s assortment today. The project has contained everything from identification of user and customer needs and requirements to evaluation and building of a prototype.The result is a chair with a frame of tubular steel and there is nothing like it in Kinnarps AB?s assortment today.

The diegetic game world places high demands on how it is designed. It is common that game developers wants to create a deeper player immersion and some developers believe to achieve this by integrating HUD elements into the game world. To find out how digital games can rely on the design of the game world, we performed user studies on beginners who have very limited experience of playing digital games. By observing the beginners, we could discern the visual aspects in the diegesis that helps players understand the game rules and objectives because the beginners won`t make their choices based on previous gaming experiences. If players encounter a variety of difficulties to understand the rules of a game, then it will less likely be a successful game.

The Functional Resonance Accident Model is a method developed to analyze complex systems for the purpose of accident prevention. In FRAM-analysis a visualization of the complex system is created as an aid for identifying points of interaction in the system where the risk of accidents is high, and to determine where preventive measures are to be placed. FRAM Visualizer is a computer program developed as a tool for creating such visualizations.Many usability problems have been identified in FRAM visualizations created both manually according to established method and by using the FRAM Visualizer software. The purpose of this paper is to give a basis for how FRAM visualizations can be improved in accordance with usability criteria for use in future qualitative studies.The author suggests alterations to the FRAM visualization to resolve usability issues identified in previous articles and to achieve usability goals derived from visual communication theory. The design process is guided by established design principles.

In this study we are seeking to discover the norms in the design of logotypes and how they havechanged over time. To achieve this we have chosen to analyze the logotypes of twenty companies withthe largest expenditure on advertising in Sweden. We mapped chosen design attributes within the logoto discover the similarities and then we selected the five oldest brands to analyze how their logos havechanged over time. The design changes in the logotypes over time is can be related to the changingattitudes of the general public and the designers ambitions to draw on convention to create iconic designthat will spark brand-recognition. However many changes can?t be directly explained through changesin convention.

For a long period of time there have been discussions about the need to modernize, to keep up with the changes in our society. The schools as a result have to keep up and adapt in order for the education to be up-to-date. This includes the technological developments. Many steps have been taken and mighty sums have been invested in order to keep up the pace ? but are there any consequences from these kinds of investments? In this report I?m going to take a closer look on a recent addition to this phenomenon that were installed by means of a top-down approach and study the teachers and how they have adapted and view the change in their environment ? namely the newly installed interactive writing-boards.The questions I will study include how the teachers express their view about the installation of the interactive writing-boards.

Collaborative music making on the Internet is not a new phenomenon, but no applications have yet caught on with the vast number of laptop and bedroom studio musicians active today. This is strange considering the inherent social and interactive nature of music, especially amongst trends like Web 2.0 where collaboration and user-generated data is key. In this paper I study the problems these applications face, and why they do not have a greater appeal to musicians. With the results I develop and evaluate my own framework, known as Crescendo Online: a multi-user sequencing and modular synthesis environment, intended to pave the way for a new type of online music creation platform..

The present work is a continuation of the ideas developed in previous projects during my Masters studies that explored the relation between pattern, form and space. Starting from the pattern multiplication for space construction the present project proposes textiles as an assortment of flexible expressions. The purpose of the project is to explore aesthetic and functional potential of textiles for out door temporary structures. This is to create a pattern interface which filters sunlight through a textile surface to offer instant sheltering solutions for out door activities. The project combines research and analyses of outdoor temporary structures and scope of textile in the area.

The idea for the thesis ?Construction and implementation of a mobile prototype; The Lovebomb? originates from doctoral candidates Rebecca Hansson and Tobias Skog from PLAY Research Group at the Interactive Institute in Gothenburg. The object of the master thesis is to construct two working LoveBomb prototypes, one mother console belonging to the LoveBomb and blueprints for both. The LoveBomb (the picture to the right shows a possible design) is intended to encourage people to express themselves emotionally when situated amongst strangers in public spaces. Two buttons control the device, which contains a radio transceiver.

This project has been about making a design suggestion for a boat accessory that adjuststhe distance between a sail-or motorboat and the dinghy, which is connected by a rope inthe stern. Today this is all done by hand and can lead to problems when it comes tostressful situations such as harbors and narrow passages.A company called Sailsafe came up with the idea and the construction, which they alsohave tested. I found them through an acquaintance at Dacat AB where I did an internshipin the fall of 2010.Using sketching as the primary tool I?ve worked in an almost-real design project with theaim to develop my skills and give the company a relevant design suggestion. Dacat thenhelped me with a 3d model in Alias, which was printed in 3d and painted in thepaintworkshop at school..

Den här uppsatsen handlar om rörelsen intelligent design, som tror att en intelligent skapare ligger bakom stegen i evolutionen. På så vis blir inte evolutionen en slumpmässig sak, utan en sedermera intelligent designad evolution. Den här intelligenta skaparen är med andra ord Gud. Uppsatsens ämnar  undersöka intelligent design och gymnasieskolan, närmare bestämt hur ID korrelerar med didaktik. Rent konkret är syftet med uppsatsen att se hur man i de centrala didaktiska frågeställningarna bemöter intelligent design i religionsläroböcker på gymnasial nivå.

This study examined how users interact with a smartphone while in a learning situation based on videos via smartphones as a learning tool, and how this interaction and phenomena is experienced. The five test subject were separately given the same task that they were to solve using video instructions that were picked out and given to them. After finishing the task the subjects were observed while they demonstrated how they completed the task. After the observation the subject were interviewed using semi-structured interviews. The results show that the user experience of this phenomena is based on more pragmatic values than we could find in earlier studies, i.e.

The background for this degree thesis is a need to replace the existing seal used to protect equipment containing secret or sensitive equipment used by Swedish Defence. The target design should satisfy both the need for tamper evidence and reduce Life Cycle Cost. In developing a new design for a seal, additional benefits such as improved logistics support and indication of attack methods such as heat and solvents have been considered.The lack of guiding principles for end users of seals became evident during the interviews. Major concerns for the future are education of users, information about actions if a seal is broken and user liability.The design work was divided into several phases. A feasibility study was performed including investigation of theory of labels, materials and possible technologies.