This master thesis work was done by two students at Machine Design at KTH for Lesjöfors Stockholmsfjäder AB. The task was to develop a calculation program for gas springs. The program is going to ease the selection of gas springs for a given case of a lid that should be opened. The program is going to be used internal by sales people at Lesjöfors AB in Sweden and internationally. The program is therefore written in English.The program was developed in Microsoft Visual C# 2008 Express Edition.

!is began as a product design challenge, which stipulated broadlythat the designer be ?inspired by a subject?, whose ideas would leaddown a path of product idea evolution. From there, the goals forthe end-product would undergo rigorous revisions, re-de#nitionand re#nement. !e end-product itself would be the result of anentire thinking process.!e subject I have chosen is: Time. I want to challenge and evenalter our conventional sense of time, using principles ofdesign.

The purpose of this study was to investigate the understanding of the diagnoses ADHD and DAMP within different professional categories in the educational system, how it is being addressed and how this affect their work with children diagnosed with ADHD or DAMP. We also wanted to shed some light on the debate between Kärfve and Gillberg, about whether the diagnoses of ADHD and DAMP are social constructed problems or biological and genetic disorders. More specifically, our study was of a qualitative nature and consisted of interviews with seven persons working in six different professions within the educational system. The respondents all worked in school environments but with varied roles and thus varied experience of children with ADHD/DAMP. The interviews and literature studies revealed the complexity of ADHD and DAMP and also the diversity of the debate regarding the diagnoses.

This thesis is a product development project that was performed at Alfa Laval Tumba AB. In the past Alfa Laval have manufactured gas separators for engines where gas flows were cleaned from oil. A new business area for this kind of technology has shown to be the manufacturing industry where oil mist has to be separated from the vented air. Therefore a new and bigger design is needed to be able to handle the greater gas flows. A product like that would be a strong competitor on the market when the maintenance would be low in comparison to today?s equipment.During the project several concept suggestions were developed using customer interviews and research as input.

Skillingaryds stålrörsindustri AB handles different kinds of steel pipes and got theirmarket mainly in the furniture industry and in department stores. At the momentthe company find themselves in a strong up going course. In a few years thecompany?s turnover has increased with over 10 million SEK. This has led to ademand for structure changes and reorganizing through the company.

Husqvarna is a world leading producer of chainsaws with a well-established brand name. Husqvarna now has an interest in investigating the possibiltiy to expand their production of chains and guide bars to include cutting equipment for timber-harvesters.This project is a technical study which aims to answer questions about cutting equipment for timber-harvesters that have been decided in cooperation with Husqvarna. The questions have mainly been focused on forces, cutting speeds, service and maintenance -as well as general questions regarding the size of the Swedish market.Two methods have been applied to answer the questions. Interviews with retailers of harvesters, producers of harvester heads and harvester drivers.The main findings in this project show that there is a relatively small selection of harvester chains on the Swedish market. In contrast to the selection of harvester chains the selection of guide bars is quite large.

Veterinär beteendemedicin är ett relativt nytt område. Internationellt sker en ökad diagnosticering av psykiska sjukdomar och syndrom hos sällskapsdjur med efterföljande medicinering. Studien syftade dels till att öka kunskapen om hur beteendeproblem hos hund och katt behandlas farmakologiskt i Sverige och hur veterinärer och djurpsykologer ser på sin egen kompetens inom området. Dessutom till att undersöka vad veterinärer och djurpsykologer har för inställning till beteendemodifierande läkemedel och produkter. Samt slutligen att få en uppfattning om hur mycket beteendemodifierande läkemedel och produkter som används till hund och katt.

Sweden have 419 000 km road in the country and about half of these roads is forestroads. The forest road net most important mission is to make it possible to deliver wood from the forest to the industries. With a raw material that is spread over a large area the road network is important. Each year has the forest road network been extended with about 1 700 km new roads. To decide if a new road is to be built different forest road cost estimation models has been used.

The energy in laundry rooms, in form heated air, can be utilized with a heat exchanger. A concept and an early prototype of the heat exchanger have already been developed to show that the theory works. This report describes the continued development and construction of the product.A field study was made in order to investigate the environmental usage and establish the product design. The most common washing machine was used as a calculation model, and calculations were also made to estimate the amount of energy in the air. A previous analysis of the existing prototype is also presented in this report, to show the products potential capacity.

This report shows the process of the development of a sensor module for the seed drills of Väderstad Verken AB. The module is supposed to replace existing solutions, provided that it is better from both a constructional- and an economical aspect. The purpose of the sensor is to continuously give the driver information about the level of height of the front- and drilling tools and the main purpose of the sensor is to allow the seeds to be placed at the desired depth. The sensors which have been taken into consideration have all been of an analogue type and have a protection class of minimum IP67.The methods applied have been taken from the book ?The Mechanical Design Process? by David G.

The component workshop at Atlas Copco inTierp intends to reduce the costs inorder to increase their competitiveness.This thesis examines how the productionmanagement around cylinder washersshould be managed in a way that meetsthe customer needs. The customer to thecylinder washer is Atlas Copcos assemblydepartment in Tierp.The purpose of this thesis is to providean alternative way of managing theproduction. A chapter of theory is addedto give the reader an insight ofdifferent types of production managementsystems as well as the underlyingknowledge needed to get a better readingexperience. An introduction of kanbancan in theory help Atlas Copco in thedirection they strive. It should beclear how the purpose of this thesisaffects the cost for the componentworkshop and also how it relates to thecurrent production.

In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk harrow we have looked at Amazone Catros and Väderstad Carrier. We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.

Energy efficiency is important both to reduce costs and to reduce greenhouse gas emissions in the atmosphere. Reducing costs will also help maintain business competitiveness.Scania in Södertälje is a company where the optimization of energy use is an ongoing and continual process. One area with potential to make energy and cost savings is the effectiveness of the ventilation systems in offices and industrial premises at Scania. During the summer months an increased demand for cooling occurs, leading to increased ventilation and a peak in district cooling system usage. Sorptive cooling is a technology where the supplied air is cooled by applying external heat.

Ever since Lipsky wrote about street-level bureaucrats in 1980 the main belief has been that certain characteristics of their jobs make it exceptionally difficult to severely reduce their discretion. However, discretion comes at a price and if public servants abuse their power the legitimacy of government is at risk and ultimately even the democracy.This thesis address this question by analysing the Swedish employment service which in the beginning of 2001 started a project called ?Af Sverige? trying to improve internal rule of law. By comparing two local and fairly equal jobcentres and how the street-level bureaucrats within use their discretion, I seek to find support for my hypotheses that organizing local jobcentres according to the principles of machine bureaucracy plays a significant part in reducing discretion.My findings show that a jobcentre characterised by strict rules, few units, good communications and a forthright manager who delegates formal power to the employees results in a stricter and more uniform application of regulations among the street-level bureaucrats. My conclusion is therefore unambiguous.

The purpose of this essay, ?Now they are chasing paper-less - A qualitative discourse analysis of mass medias depiction of the Reva-project and the work of the police?, is to analyze how mass media portrays the Reva-project and polices work with the project. The basis for the essay will be eight selected newspapers. The Reva-project implies collaboration between the Police, the Swedish Migration board and the Swedish Prison and Probation Service within the border police. The aim of the project is to enhance the efficiency and the execution of the border police work, in accordance with the government?s target.