Welding is a common method for joining of metal or plastic construction parts. This report describes several different weld methods in general terms. The report focuses on the GMAW method, specifically MAG welding.A case study has also been performed for the company Wenmec. The task received from the company was to compare the mechanical properties of joints welded with the tube electrode called Nittetsu SM-3A and joints welded with the homogenous electrode called ESAB Aristorod 12.63. Both types of weld joint were welded with the MAG method with an Argon based shielding gas with 18% CO2.

The project aimed to develop a protective and stabilizing insole called Trailplate for soft andlight shoes. The demand came primarily from off-road runners in France, Switzerland, andAustria. The project was carried out at Icebug, a company that develops shoes mainly forrough terrain. The main focus has been on the trailplate which is designed to fit severaldifferent shoes.Torsional stiffness and bending resistance were the main objectives. To improve the existinginsole, a material with the right features was required.

The thesis work was conducted with the company Free2Move AB. The company is located in Halmstad and is an acting provider of wireless communications for industrial customers, mainly focused on Bluetooth? technology.In today's society most people have their music on their computer, MP3 player or mobile phone. What if you could avoid the cable between your sound system and sound source and transfer music wirelessly instead? Together with the company's engineers, I have developed a new comprehensive product for wireless music transmission.

Swedish energy policy aims to increase the use of energy from renewable sources and this should be done in a safe, environmentally and sustainable manner. According to the Energy Agency the use bio-fuel increased by 73% between 1990 - 2006. Stands with high share of slash are often located on areas with high productivity which often are located on soils with poor bearing capacity. This will increase traffic on susceptible soil leading to increased ground damage. To reduce the risk of ground damage at slash-forwarding, ground protection is needed.

In an attempt to develop a more cost-efficient material for solar   energy applications, nano-particles of nickel oxide composite in a silikatmatris manufactured with solar gelmethod and studied structurally by electron microscopy. Furthermore, the thin film optical properties characterized by Variable. Angel Spectroscopic Ellipsometry. Sol gelfilms suitability as a selective absorber surface is also analyzed by optical modeling..

Today?s electrical grid companies understand that better knowledge of and information about their grid can help realize a smart grid network. One way to gain better knowledge and information about the low voltage network is to install measuring equipment on the substation transformer´s secondary low voltage side that measures the low voltage network losses for that specific substation. By doing so, grid companies can, due to the calculation of the low voltage network losses, identify and address issues such as illegal power dissipation, unmeasured power outtakes, and unsatisfied technical documentation for the substations low voltage network.During 2012, Mälarenergi Elnät AB had a total electrical network loss (both medium and low voltage network losses included) of three to four percent of their total distributed electrical volume. Converting this energy volume into a monetary figure this accounts for a loss of around 30 million Swedish crowns.

This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.Information that can be used by competitors has been censored in this version of the essay.To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding.

Uppsatsen ger historiska perspektiv och ekonomiska analyser av samband mellan ekonomisk utveckling och ojämlikhet. Den teoretiska utgångspunkten är två artiklar av Oded Galor och Omer Moav som utarbetat formella modeller för analys av ojämlikhetens inverkan på tillväxten, med betoning på humankapitalets ökade betydelse i ekonomins senare utvecklingsstadier. Den empiriska undersökningen som författarna gör i artikeln ?Das Human- Kapital: A Theory of the Demise of the Class Structure? för England, är mallen för uppsatsen. Resultaten av den empiriska studien för Sverige ligger i linje med Galor och Moavs slutsatser för England men ett särskilt svenskt utvecklingsmönster spåras..

Syftet med studien är att undersöka om det kan skapas fler arbetstillfällen inom forskning och utveckling på den nationella arbetsmarknaden när hela eller delar utav den inhemska produktionen flyttar utomlands. För att undersöka varför företag flyttar sin produktion utomlands har jag tagit mig till hjälp av fem fallföretag. Vidare har jag undersökt vilka länder företagen väljer att flytta till samt de faktorer som påverkar beslutet. Avslutningsvis har jag genom en modifierad version av Romers modell undersökt om fler arbetstillfällen inom forskning och utveckling kan skapas när produktionen flyttar utomlands..

Denna uppsats studerar huruvida internationell diversifiering medför några vinster gentemot att följa en inhemsk strategi. Genom analys av dels sverigefonder och dels globalfonder slås det fast att så är fallet. En internationell strategi medför en lägre risk än en sverigekoncentrerad. Uppsatsen undersöker också fenomenet Home Bias, d.v.s. den snedvridning som innebär att en allt för stor andel av kapitalet placeras i hemlandet.

The aim of this paper is to analyze aid, grouped into sectors, and its effect on growth in developing countries, to find out which type of aid has had the most positive effect on growth. We compiled a regression analysis based on panel data over 81 developing countries from 1975-1999. In our first regression we considered and group countries by institutional quality, in the other we considered and group countries after regional differences. As a measure on institutional quality we used the KKZ-index. The principal aim of this paper was to find out what kind of aid is the most efficient in its influence on growth in LDC?s.

The aim of this study has been to, through a couple of chosen theories, examine in what way and for what purposes Japan has used its international aid system, How can the nation have been said to have implemented and acted in lines with the philosophies and principles set forth in the ODA declaration. What approaches, concerning positive and negative aid sanctions in the matters of aid to Cambodia and Burma, have been chosen and what have the motives for these choices been. What have been the determining factors of the outcome related to these sanctions - economic, political and/or matters of identity? I have found that a concern for possible decrease in economic profit and investment related areas, combined with a feared loss of political prestige and worsened diplomatic relations to the neighbouring countries in the Asian society, have come to overtrump the notion of advocating democracy, human rights, environmental and anti-militaristic issues..

The Vaxholm conflict was initiated when the Swedish Trade Union for Construction Workers shut down a construction site in order to prevent a Latvian construction company to build a school after the two parties had failed to agree upon a collective agreement in compliance with Swedish regulations. An emotional public debate followed that resulted in a discussion of the proposal for the Services Directive of the EU, based upon the country-of-origin principle. In this thesis we will analyze whether the country-of-origin principle or the country-of-destination principle is best suited to capture the gains-of-trade that the common market hoards and improve welfare within the EU. We conclude that the country-of-origin principle is the more apt of the two, though it leads to some short-run costs such as structural unemployment. But these will be more than outweighed by the gains in aggregate welfare for the EU in the long run..

Denna uppsats behandlar det kommunala utjämningssystemet. Dagens system består av en inkomstutjämningsdel, kostnadsutjämningsdel, ett strukturbidrag och en regleringspost, som antingen kan bli bidrag eller avgift beroende på hur mycket pengar staten anslår till systemet. Till detta har använts teorin om konkurrensproblemet, olika teorier om vad kommunerna bör göra, varför kommunerna bör finnas och hur de skall finansiera verksamheten. Två kommuner har valts ut, Vellinge och Trelleborg, för att i två fallstudier studera effekten av systemet för den enskilda kommunen. Slutsatsen är att i dagsläget behövs utjämningssystemet för annars träder konkurrensproblemet till.

This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.Information that can be used by competitors has been censored in this version of the essay.To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding.